/**
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* \file
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*/
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#include <config.h>
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#include <glib.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <errno.h>
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#include <string.h>
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#include <sys/stat.h>
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#ifdef HAVE_SYS_STATVFS_H
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#include <sys/statvfs.h>
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#endif
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#if defined(HAVE_SYS_STATFS_H)
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#include <sys/statfs.h>
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#endif
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#if defined(HAVE_SYS_PARAM_H) && defined(HAVE_SYS_MOUNT_H)
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#include <sys/param.h>
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#include <sys/mount.h>
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#endif
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#include <sys/types.h>
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#include <stdio.h>
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#include <utime.h>
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#ifdef __linux__
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#include <sys/ioctl.h>
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#include <linux/fs.h>
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#include <mono/utils/linux_magic.h>
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#endif
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#include <sys/time.h>
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#ifdef HAVE_DIRENT_H
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# include <dirent.h>
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#endif
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#include "w32file.h"
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#include "w32file-internals.h"
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#include "w32file-unix-glob.h"
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#include "w32error.h"
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#include "fdhandle.h"
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#include "mono/metadata/profiler-private.h"
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#include "utils/mono-io-portability.h"
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#include "utils/mono-logger-internals.h"
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#include "utils/mono-os-mutex.h"
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#include "utils/mono-threads.h"
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#include "utils/mono-threads-api.h"
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#include "utils/strenc.h"
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#include "utils/refcount.h"
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#define INVALID_HANDLE_VALUE (GINT_TO_POINTER (-1))
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typedef struct {
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guint64 device;
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guint64 inode;
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guint32 sharemode;
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guint32 access;
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guint32 handle_refs;
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guint32 timestamp;
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} FileShare;
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/* Currently used for both FILE, CONSOLE and PIPE handle types.
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* This may have to change in future. */
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typedef struct {
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MonoFDHandle fdhandle;
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gchar *filename;
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FileShare *share_info; /* Pointer into shared mem */
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guint32 security_attributes;
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guint32 fileaccess;
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guint32 sharemode;
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guint32 attrs;
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} FileHandle;
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typedef struct {
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MonoRefCount ref;
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MonoCoopMutex mutex;
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gchar **namelist;
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gchar *dir_part;
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gint num;
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gsize count;
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} FindHandle;
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/*
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* If SHM is disabled, this will point to a hash of FileShare structures, otherwise
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* it will be NULL. We use this instead of _wapi_fileshare_layout to avoid allocating a
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* 4MB array.
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*/
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static GHashTable *file_share_table;
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static MonoCoopMutex file_share_mutex;
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static GHashTable *finds;
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static MonoCoopMutex finds_mutex;
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static void
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time_t_to_filetime (time_t timeval, FILETIME *filetime)
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{
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guint64 ticks;
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ticks = ((guint64)timeval * 10000000) + 116444736000000000ULL;
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filetime->dwLowDateTime = ticks & 0xFFFFFFFF;
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filetime->dwHighDateTime = ticks >> 32;
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}
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static FileHandle*
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file_data_create (MonoFDType type, gint fd)
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{
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FileHandle *filehandle;
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filehandle = g_new0 (FileHandle, 1);
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mono_fdhandle_init ((MonoFDHandle*) filehandle, type, fd);
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return filehandle;
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}
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static gint
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_wapi_unlink (const gchar *pathname);
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static void
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file_share_release (FileShare *share_info);
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static void
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file_data_close (MonoFDHandle *fdhandle)
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{
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FileHandle* filehandle;
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filehandle = (FileHandle*) fdhandle;
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g_assert (filehandle);
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mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: closing fd %d", __func__, ((MonoFDHandle*) filehandle)->fd);
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if (((MonoFDHandle*) filehandle)->type == MONO_FDTYPE_FILE && (filehandle->attrs & FILE_FLAG_DELETE_ON_CLOSE)) {
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_wapi_unlink (filehandle->filename);
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}
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if (((MonoFDHandle*) filehandle)->type != MONO_FDTYPE_CONSOLE || ((MonoFDHandle*) filehandle)->fd > 2) {
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if (filehandle->share_info) {
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file_share_release (filehandle->share_info);
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filehandle->share_info = NULL;
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}
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MONO_ENTER_GC_SAFE;
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close (((MonoFDHandle*) filehandle)->fd);
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MONO_EXIT_GC_SAFE;
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}
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}
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static void
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file_data_destroy (MonoFDHandle *fdhandle)
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{
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FileHandle *filehandle;
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filehandle = (FileHandle*) fdhandle;
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g_assert (filehandle);
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if (filehandle->filename)
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g_free (filehandle->filename);
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g_free (filehandle);
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}
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static void
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file_share_release (FileShare *share_info)
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{
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/* Prevent new entries racing with us */
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mono_coop_mutex_lock (&file_share_mutex);
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g_assert (share_info->handle_refs > 0);
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share_info->handle_refs -= 1;
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if (share_info->handle_refs == 0) {
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g_hash_table_remove (file_share_table, share_info);
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// g_free (share_info);
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}
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mono_coop_mutex_unlock (&file_share_mutex);
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}
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static gint
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file_share_equal (gconstpointer ka, gconstpointer kb)
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{
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const FileShare *s1 = (const FileShare *)ka;
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const FileShare *s2 = (const FileShare *)kb;
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return (s1->device == s2->device && s1->inode == s2->inode) ? 1 : 0;
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}
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static guint
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file_share_hash (gconstpointer data)
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{
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const FileShare *s = (const FileShare *)data;
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return s->inode;
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}
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static gboolean
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file_share_get (guint64 device, guint64 inode, guint32 new_sharemode, guint32 new_access,
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guint32 *old_sharemode, guint32 *old_access, FileShare **share_info)
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{
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FileShare *file_share;
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gboolean exists = FALSE;
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/* Prevent new entries racing with us */
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mono_coop_mutex_lock (&file_share_mutex);
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FileShare tmp;
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/*
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* Instead of allocating a 4MB array, we use a hash table to keep track of this
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* info. This is needed even if SHM is disabled, to track sharing inside
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* the current process.
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*/
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if (!file_share_table)
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file_share_table = g_hash_table_new_full (file_share_hash, file_share_equal, NULL, g_free);
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tmp.device = device;
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tmp.inode = inode;
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file_share = (FileShare *)g_hash_table_lookup (file_share_table, &tmp);
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if (file_share) {
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*old_sharemode = file_share->sharemode;
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*old_access = file_share->access;
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*share_info = file_share;
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g_assert (file_share->handle_refs > 0);
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file_share->handle_refs += 1;
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exists = TRUE;
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} else {
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file_share = g_new0 (FileShare, 1);
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file_share->device = device;
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file_share->inode = inode;
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file_share->sharemode = new_sharemode;
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file_share->access = new_access;
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file_share->handle_refs = 1;
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*share_info = file_share;
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g_hash_table_insert (file_share_table, file_share, file_share);
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}
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mono_coop_mutex_unlock (&file_share_mutex);
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return(exists);
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}
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static gint
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_wapi_open (const gchar *pathname, gint flags, mode_t mode)
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{
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gint fd;
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gchar *located_filename;
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if (flags & O_CREAT) {
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located_filename = mono_portability_find_file (pathname, FALSE);
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if (located_filename == NULL) {
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MONO_ENTER_GC_SAFE;
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fd = open (pathname, flags, mode);
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MONO_EXIT_GC_SAFE;
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} else {
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MONO_ENTER_GC_SAFE;
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fd = open (located_filename, flags, mode);
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MONO_EXIT_GC_SAFE;
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g_free (located_filename);
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}
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} else {
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MONO_ENTER_GC_SAFE;
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fd = open (pathname, flags, mode);
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MONO_EXIT_GC_SAFE;
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if (fd == -1 && (errno == ENOENT || errno == ENOTDIR) && IS_PORTABILITY_SET) {
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gint saved_errno = errno;
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located_filename = mono_portability_find_file (pathname, TRUE);
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if (located_filename == NULL) {
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errno = saved_errno;
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return -1;
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}
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MONO_ENTER_GC_SAFE;
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fd = open (located_filename, flags, mode);
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MONO_EXIT_GC_SAFE;
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g_free (located_filename);
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}
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}
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return(fd);
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}
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static gint
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_wapi_access (const gchar *pathname, gint mode)
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{
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gint ret;
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MONO_ENTER_GC_SAFE;
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ret = access (pathname, mode);
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MONO_EXIT_GC_SAFE;
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if (ret == -1 && (errno == ENOENT || errno == ENOTDIR) && IS_PORTABILITY_SET) {
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gint saved_errno = errno;
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gchar *located_filename = mono_portability_find_file (pathname, TRUE);
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if (located_filename == NULL) {
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errno = saved_errno;
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return -1;
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}
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MONO_ENTER_GC_SAFE;
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ret = access (located_filename, mode);
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MONO_EXIT_GC_SAFE;
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g_free (located_filename);
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}
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return ret;
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}
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static gint
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_wapi_chmod (const gchar *pathname, mode_t mode)
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{
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gint ret;
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MONO_ENTER_GC_SAFE;
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ret = chmod (pathname, mode);
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MONO_EXIT_GC_SAFE;
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if (ret == -1 && (errno == ENOENT || errno == ENOTDIR) && IS_PORTABILITY_SET) {
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gint saved_errno = errno;
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gchar *located_filename = mono_portability_find_file (pathname, TRUE);
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if (located_filename == NULL) {
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errno = saved_errno;
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return -1;
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}
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MONO_ENTER_GC_SAFE;
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ret = chmod (located_filename, mode);
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MONO_EXIT_GC_SAFE;
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g_free (located_filename);
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}
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return ret;
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}
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static gint
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_wapi_utime (const gchar *filename, const struct utimbuf *buf)
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{
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gint ret;
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MONO_ENTER_GC_SAFE;
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ret = utime (filename, buf);
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MONO_EXIT_GC_SAFE;
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if (ret == -1 && errno == ENOENT && IS_PORTABILITY_SET) {
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gint saved_errno = errno;
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gchar *located_filename = mono_portability_find_file (filename, TRUE);
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if (located_filename == NULL) {
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errno = saved_errno;
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return -1;
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}
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MONO_ENTER_GC_SAFE;
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ret = utime (located_filename, buf);
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MONO_EXIT_GC_SAFE;
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g_free (located_filename);
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}
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return ret;
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}
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static gint
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_wapi_unlink (const gchar *pathname)
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{
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gint ret;
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MONO_ENTER_GC_SAFE;
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ret = unlink (pathname);
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MONO_EXIT_GC_SAFE;
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if (ret == -1 && (errno == ENOENT || errno == ENOTDIR || errno == EISDIR) && IS_PORTABILITY_SET) {
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gint saved_errno = errno;
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gchar *located_filename = mono_portability_find_file (pathname, TRUE);
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if (located_filename == NULL) {
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errno = saved_errno;
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return -1;
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}
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MONO_ENTER_GC_SAFE;
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ret = unlink (located_filename);
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MONO_EXIT_GC_SAFE;
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g_free (located_filename);
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}
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return ret;
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}
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static gint
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_wapi_rename (const gchar *oldpath, const gchar *newpath)
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{
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gint ret;
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gchar *located_newpath = mono_portability_find_file (newpath, FALSE);
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if (located_newpath == NULL) {
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MONO_ENTER_GC_SAFE;
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ret = rename (oldpath, newpath);
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MONO_EXIT_GC_SAFE;
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} else {
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MONO_ENTER_GC_SAFE;
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ret = rename (oldpath, located_newpath);
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MONO_EXIT_GC_SAFE;
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if (ret == -1 && (errno == EISDIR || errno == ENAMETOOLONG || errno == ENOENT || errno == ENOTDIR || errno == EXDEV) && IS_PORTABILITY_SET) {
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gint saved_errno = errno;
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gchar *located_oldpath = mono_portability_find_file (oldpath, TRUE);
|
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if (located_oldpath == NULL) {
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g_free (located_oldpath);
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g_free (located_newpath);
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errno = saved_errno;
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return -1;
|
}
|
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MONO_ENTER_GC_SAFE;
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ret = rename (located_oldpath, located_newpath);
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MONO_EXIT_GC_SAFE;
|
g_free (located_oldpath);
|
}
|
g_free (located_newpath);
|
}
|
|
return ret;
|
}
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|
static gint
|
_wapi_stat (const gchar *path, struct stat *buf)
|
{
|
gint ret;
|
|
MONO_ENTER_GC_SAFE;
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ret = stat (path, buf);
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MONO_EXIT_GC_SAFE;
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if (ret == -1 && (errno == ENOENT || errno == ENOTDIR) && IS_PORTABILITY_SET) {
|
gint saved_errno = errno;
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gchar *located_filename = mono_portability_find_file (path, TRUE);
|
|
if (located_filename == NULL) {
|
errno = saved_errno;
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return -1;
|
}
|
|
MONO_ENTER_GC_SAFE;
|
ret = stat (located_filename, buf);
|
MONO_EXIT_GC_SAFE;
|
g_free (located_filename);
|
}
|
|
return ret;
|
}
|
|
static gint
|
_wapi_lstat (const gchar *path, struct stat *buf)
|
{
|
gint ret;
|
|
MONO_ENTER_GC_SAFE;
|
ret = lstat (path, buf);
|
MONO_EXIT_GC_SAFE;
|
if (ret == -1 && (errno == ENOENT || errno == ENOTDIR) && IS_PORTABILITY_SET) {
|
gint saved_errno = errno;
|
gchar *located_filename = mono_portability_find_file (path, TRUE);
|
|
if (located_filename == NULL) {
|
errno = saved_errno;
|
return -1;
|
}
|
|
ret = lstat (located_filename, buf);
|
g_free (located_filename);
|
}
|
|
return ret;
|
}
|
|
static gint
|
_wapi_mkdir (const gchar *pathname, mode_t mode)
|
{
|
gint ret;
|
gchar *located_filename = mono_portability_find_file (pathname, FALSE);
|
|
if (located_filename == NULL) {
|
MONO_ENTER_GC_SAFE;
|
ret = mkdir (pathname, mode);
|
MONO_EXIT_GC_SAFE;
|
} else {
|
MONO_ENTER_GC_SAFE;
|
ret = mkdir (located_filename, mode);
|
MONO_EXIT_GC_SAFE;
|
g_free (located_filename);
|
}
|
|
return ret;
|
}
|
|
static gint
|
_wapi_rmdir (const gchar *pathname)
|
{
|
gint ret;
|
|
MONO_ENTER_GC_SAFE;
|
ret = rmdir (pathname);
|
MONO_EXIT_GC_SAFE;
|
if (ret == -1 && (errno == ENOENT || errno == ENOTDIR || errno == ENAMETOOLONG) && IS_PORTABILITY_SET) {
|
gint saved_errno = errno;
|
gchar *located_filename = mono_portability_find_file (pathname, TRUE);
|
|
if (located_filename == NULL) {
|
errno = saved_errno;
|
return -1;
|
}
|
|
MONO_ENTER_GC_SAFE;
|
ret = rmdir (located_filename);
|
MONO_EXIT_GC_SAFE;
|
g_free (located_filename);
|
}
|
|
return ret;
|
}
|
|
static gint
|
_wapi_chdir (const gchar *path)
|
{
|
gint ret;
|
|
MONO_ENTER_GC_SAFE;
|
ret = chdir (path);
|
MONO_EXIT_GC_SAFE;
|
if (ret == -1 && (errno == ENOENT || errno == ENOTDIR || errno == ENAMETOOLONG) && IS_PORTABILITY_SET) {
|
gint saved_errno = errno;
|
gchar *located_filename = mono_portability_find_file (path, TRUE);
|
|
if (located_filename == NULL) {
|
errno = saved_errno;
|
return -1;
|
}
|
|
MONO_ENTER_GC_SAFE;
|
ret = chdir (located_filename);
|
MONO_EXIT_GC_SAFE;
|
g_free (located_filename);
|
}
|
|
return ret;
|
}
|
|
static gchar*
|
_wapi_basename (const gchar *filename)
|
{
|
gchar *new_filename = g_strdup (filename), *ret;
|
|
if (IS_PORTABILITY_SET) {
|
g_strdelimit (new_filename, "\\", '/');
|
}
|
|
if (IS_PORTABILITY_DRIVE && g_ascii_isalpha (new_filename[0]) && (new_filename[1] == ':')) {
|
gint len = strlen (new_filename);
|
|
g_memmove (new_filename, new_filename + 2, len - 2);
|
new_filename[len - 2] = '\0';
|
}
|
|
ret = g_path_get_basename (new_filename);
|
g_free (new_filename);
|
|
return ret;
|
}
|
|
static gchar*
|
_wapi_dirname (const gchar *filename)
|
{
|
gchar *new_filename = g_strdup (filename), *ret;
|
|
if (IS_PORTABILITY_SET) {
|
g_strdelimit (new_filename, "\\", '/');
|
}
|
|
if (IS_PORTABILITY_DRIVE && g_ascii_isalpha (new_filename[0]) && (new_filename[1] == ':')) {
|
gint len = strlen (new_filename);
|
|
g_memmove (new_filename, new_filename + 2, len - 2);
|
new_filename[len - 2] = '\0';
|
}
|
|
ret = g_path_get_dirname (new_filename);
|
g_free (new_filename);
|
|
return ret;
|
}
|
|
static GDir*
|
_wapi_g_dir_open (const gchar *path, guint flags, GError **error)
|
{
|
GDir *ret;
|
|
MONO_ENTER_GC_SAFE;
|
ret = g_dir_open (path, flags, error);
|
MONO_EXIT_GC_SAFE;
|
if (ret == NULL && ((*error)->code == G_FILE_ERROR_NOENT || (*error)->code == G_FILE_ERROR_NOTDIR || (*error)->code == G_FILE_ERROR_NAMETOOLONG) && IS_PORTABILITY_SET) {
|
gchar *located_filename = mono_portability_find_file (path, TRUE);
|
GError *tmp_error = NULL;
|
|
if (located_filename == NULL) {
|
return(NULL);
|
}
|
|
MONO_ENTER_GC_SAFE;
|
ret = g_dir_open (located_filename, flags, &tmp_error);
|
MONO_EXIT_GC_SAFE;
|
g_free (located_filename);
|
if (tmp_error == NULL) {
|
g_clear_error (error);
|
}
|
}
|
|
return ret;
|
}
|
|
static gint
|
get_errno_from_g_file_error (gint error)
|
{
|
switch (error) {
|
#ifdef EACCES
|
case G_FILE_ERROR_ACCES: return EACCES;
|
#endif
|
#ifdef ENAMETOOLONG
|
case G_FILE_ERROR_NAMETOOLONG: return ENAMETOOLONG;
|
#endif
|
#ifdef ENOENT
|
case G_FILE_ERROR_NOENT: return ENOENT;
|
#endif
|
#ifdef ENOTDIR
|
case G_FILE_ERROR_NOTDIR: return ENOTDIR;
|
#endif
|
#ifdef ENXIO
|
case G_FILE_ERROR_NXIO: return ENXIO;
|
#endif
|
#ifdef ENODEV
|
case G_FILE_ERROR_NODEV: return ENODEV;
|
#endif
|
#ifdef EROFS
|
case G_FILE_ERROR_ROFS: return EROFS;
|
#endif
|
#ifdef ETXTBSY
|
case G_FILE_ERROR_TXTBSY: return ETXTBSY;
|
#endif
|
#ifdef EFAULT
|
case G_FILE_ERROR_FAULT: return EFAULT;
|
#endif
|
#ifdef ELOOP
|
case G_FILE_ERROR_LOOP: return ELOOP;
|
#endif
|
#ifdef ENOSPC
|
case G_FILE_ERROR_NOSPC: return ENOSPC;
|
#endif
|
#ifdef ENOMEM
|
case G_FILE_ERROR_NOMEM: return ENOMEM;
|
#endif
|
#ifdef EMFILE
|
case G_FILE_ERROR_MFILE: return EMFILE;
|
#endif
|
#ifdef ENFILE
|
case G_FILE_ERROR_NFILE: return ENFILE;
|
#endif
|
#ifdef EBADF
|
case G_FILE_ERROR_BADF: return EBADF;
|
#endif
|
#ifdef EINVAL
|
case G_FILE_ERROR_INVAL: return EINVAL;
|
#endif
|
#ifdef EPIPE
|
case G_FILE_ERROR_PIPE: return EPIPE;
|
#endif
|
#ifdef EAGAIN
|
case G_FILE_ERROR_AGAIN: return EAGAIN;
|
#endif
|
#ifdef EINTR
|
case G_FILE_ERROR_INTR: return EINTR;
|
#endif
|
#ifdef EIO
|
case G_FILE_ERROR_IO: return EIO;
|
#endif
|
#ifdef EPERM
|
case G_FILE_ERROR_PERM: return EPERM;
|
#endif
|
case G_FILE_ERROR_FAILED: return ERROR_INVALID_PARAMETER;
|
default:
|
g_assert_not_reached ();
|
}
|
}
|
|
static gint
|
file_compare (gconstpointer a, gconstpointer b)
|
{
|
gchar *astr = *(gchar **) a;
|
gchar *bstr = *(gchar **) b;
|
|
return strcmp (astr, bstr);
|
}
|
|
/* scandir using glib */
|
static gint
|
_wapi_io_scandir (const gchar *dirname, const gchar *pattern, gchar ***namelist)
|
{
|
GError *error = NULL;
|
GDir *dir;
|
GPtrArray *names;
|
gint result;
|
mono_w32file_unix_glob_t glob_buf;
|
gint flags = 0, i;
|
|
dir = _wapi_g_dir_open (dirname, 0, &error);
|
if (dir == NULL) {
|
/* g_dir_open returns ENOENT on directories on which we don't
|
* have read/x permission */
|
gint errnum = get_errno_from_g_file_error (error->code);
|
g_error_free (error);
|
if (errnum == ENOENT &&
|
!_wapi_access (dirname, F_OK) &&
|
_wapi_access (dirname, R_OK|X_OK)) {
|
errnum = EACCES;
|
}
|
|
errno = errnum;
|
return -1;
|
}
|
|
if (IS_PORTABILITY_CASE) {
|
flags = W32FILE_UNIX_GLOB_IGNORECASE;
|
}
|
|
result = mono_w32file_unix_glob (dir, pattern, flags, &glob_buf);
|
if (g_str_has_suffix (pattern, ".*")) {
|
/* Special-case the patterns ending in '.*', as
|
* windows also matches entries with no extension with
|
* this pattern.
|
*
|
* TODO: should this be a MONO_IOMAP option?
|
*/
|
gchar *pattern2 = g_strndup (pattern, strlen (pattern) - 2);
|
gint result2;
|
|
MONO_ENTER_GC_SAFE;
|
g_dir_rewind (dir);
|
MONO_EXIT_GC_SAFE;
|
result2 = mono_w32file_unix_glob (dir, pattern2, flags | W32FILE_UNIX_GLOB_APPEND | W32FILE_UNIX_GLOB_UNIQUE, &glob_buf);
|
|
g_free (pattern2);
|
|
if (result != 0) {
|
result = result2;
|
}
|
}
|
|
MONO_ENTER_GC_SAFE;
|
g_dir_close (dir);
|
MONO_EXIT_GC_SAFE;
|
if (glob_buf.gl_pathc == 0) {
|
return(0);
|
} else if (result != 0) {
|
return -1;
|
}
|
|
names = g_ptr_array_new ();
|
for (i = 0; i < glob_buf.gl_pathc; i++) {
|
g_ptr_array_add (names, g_strdup (glob_buf.gl_pathv[i]));
|
}
|
|
mono_w32file_unix_globfree (&glob_buf);
|
|
result = names->len;
|
if (result > 0) {
|
g_ptr_array_sort (names, file_compare);
|
g_ptr_array_set_size (names, result + 1);
|
|
*namelist = (gchar **) g_ptr_array_free (names, FALSE);
|
} else {
|
g_ptr_array_free (names, TRUE);
|
}
|
|
return result;
|
}
|
|
static gboolean
|
_wapi_lock_file_region (gint fd, off_t offset, off_t length)
|
{
|
struct flock lock_data;
|
gint ret;
|
|
if (offset < 0 || length < 0) {
|
mono_w32error_set_last (ERROR_INVALID_PARAMETER);
|
return FALSE;
|
}
|
|
lock_data.l_type = F_WRLCK;
|
lock_data.l_whence = SEEK_SET;
|
lock_data.l_start = offset;
|
lock_data.l_len = length;
|
|
do {
|
ret = fcntl (fd, F_SETLK, &lock_data);
|
} while(ret == -1 && errno == EINTR);
|
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: fcntl returns %d", __func__, ret);
|
|
if (ret == -1) {
|
/*
|
* if locks are not available (NFS for example),
|
* ignore the error
|
*/
|
if (errno == ENOLCK
|
#ifdef EOPNOTSUPP
|
|| errno == EOPNOTSUPP
|
#endif
|
#ifdef ENOTSUP
|
|| errno == ENOTSUP
|
#endif
|
) {
|
return TRUE;
|
}
|
|
mono_w32error_set_last (ERROR_LOCK_VIOLATION);
|
return FALSE;
|
}
|
|
return TRUE;
|
}
|
|
static gboolean
|
_wapi_unlock_file_region (gint fd, off_t offset, off_t length)
|
{
|
struct flock lock_data;
|
gint ret;
|
|
lock_data.l_type = F_UNLCK;
|
lock_data.l_whence = SEEK_SET;
|
lock_data.l_start = offset;
|
lock_data.l_len = length;
|
|
do {
|
ret = fcntl (fd, F_SETLK, &lock_data);
|
} while(ret == -1 && errno == EINTR);
|
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: fcntl returns %d", __func__, ret);
|
|
if (ret == -1) {
|
/*
|
* if locks are not available (NFS for example),
|
* ignore the error
|
*/
|
if (errno == ENOLCK
|
#ifdef EOPNOTSUPP
|
|| errno == EOPNOTSUPP
|
#endif
|
#ifdef ENOTSUP
|
|| errno == ENOTSUP
|
#endif
|
) {
|
return TRUE;
|
}
|
|
mono_w32error_set_last (ERROR_LOCK_VIOLATION);
|
return FALSE;
|
}
|
|
return TRUE;
|
}
|
|
static gboolean lock_while_writing = FALSE;
|
|
/* Some utility functions.
|
*/
|
|
/*
|
* Check if a file is writable by the current user.
|
*
|
* This is is a best effort kind of thing. It assumes a reasonable sane set
|
* of permissions by the underlying OS.
|
*
|
* We generally assume that basic unix permission bits are authoritative. Which might not
|
* be the case under systems with extended permissions systems (posix ACLs, SELinux, OSX/iOS sandboxing, etc)
|
*
|
* The choice of access as the fallback is due to the expected lower overhead compared to trying to open the file.
|
*
|
* The only expected problem with using access are for root, setuid or setgid programs as access is not consistent
|
* under those situations. It's to be expected that this should not happen in practice as those bits are very dangerous
|
* and should not be used with a dynamic runtime.
|
*/
|
static gboolean
|
is_file_writable (struct stat *st, const gchar *path)
|
{
|
#if __APPLE__
|
// OS X Finder "locked" or `ls -lO` "uchg".
|
// This only covers one of several cases where an OS X file could be unwritable through special flags.
|
if (st->st_flags & (UF_IMMUTABLE|SF_IMMUTABLE))
|
return 0;
|
#endif
|
|
/* Is it globally writable? */
|
if (st->st_mode & S_IWOTH)
|
return 1;
|
|
/* Am I the owner? */
|
if ((st->st_uid == geteuid ()) && (st->st_mode & S_IWUSR))
|
return 1;
|
|
/* Am I in the same group? */
|
if ((st->st_gid == getegid ()) && (st->st_mode & S_IWGRP))
|
return 1;
|
|
/* Fallback to using access(2). It's not ideal as it might not take into consideration euid/egid
|
* but it's the only sane option we have on unix.
|
*/
|
return access (path, W_OK) == 0;
|
}
|
|
|
static guint32 _wapi_stat_to_file_attributes (const gchar *pathname,
|
struct stat *buf,
|
struct stat *lbuf)
|
{
|
guint32 attrs = 0;
|
gchar *filename;
|
|
/* FIXME: this could definitely be better, but there seems to
|
* be no pattern to the attributes that are set
|
*/
|
|
/* Sockets (0140000) != Directory (040000) + Regular file (0100000) */
|
if (S_ISSOCK (buf->st_mode))
|
buf->st_mode &= ~S_IFSOCK; /* don't consider socket protection */
|
|
filename = _wapi_basename (pathname);
|
|
if (S_ISDIR (buf->st_mode)) {
|
attrs = FILE_ATTRIBUTE_DIRECTORY;
|
if (!is_file_writable (buf, pathname)) {
|
attrs |= FILE_ATTRIBUTE_READONLY;
|
}
|
if (filename[0] == '.') {
|
attrs |= FILE_ATTRIBUTE_HIDDEN;
|
}
|
} else {
|
if (!is_file_writable (buf, pathname)) {
|
attrs = FILE_ATTRIBUTE_READONLY;
|
|
if (filename[0] == '.') {
|
attrs |= FILE_ATTRIBUTE_HIDDEN;
|
}
|
} else if (filename[0] == '.') {
|
attrs = FILE_ATTRIBUTE_HIDDEN;
|
} else {
|
attrs = FILE_ATTRIBUTE_NORMAL;
|
}
|
}
|
|
if (lbuf != NULL) {
|
if (S_ISLNK (lbuf->st_mode)) {
|
attrs |= FILE_ATTRIBUTE_REPARSE_POINT;
|
}
|
}
|
|
g_free (filename);
|
|
return attrs;
|
}
|
|
static void
|
_wapi_set_last_error_from_errno (void)
|
{
|
mono_w32error_set_last (mono_w32error_unix_to_win32 (errno));
|
}
|
|
static void _wapi_set_last_path_error_from_errno (const gchar *dir,
|
const gchar *path)
|
{
|
if (errno == ENOENT) {
|
/* Check the path - if it's a missing directory then
|
* we need to set PATH_NOT_FOUND not FILE_NOT_FOUND
|
*/
|
gchar *dirname;
|
|
|
if (dir == NULL) {
|
dirname = _wapi_dirname (path);
|
} else {
|
dirname = g_strdup (dir);
|
}
|
|
if (_wapi_access (dirname, F_OK) == 0) {
|
mono_w32error_set_last (ERROR_FILE_NOT_FOUND);
|
} else {
|
mono_w32error_set_last (ERROR_PATH_NOT_FOUND);
|
}
|
|
g_free (dirname);
|
} else {
|
_wapi_set_last_error_from_errno ();
|
}
|
}
|
|
static gboolean
|
file_read(FileHandle *filehandle, gpointer buffer, guint32 numbytes, guint32 *bytesread)
|
{
|
gint ret;
|
MonoThreadInfo *info = mono_thread_info_current ();
|
|
if(bytesread!=NULL) {
|
*bytesread=0;
|
}
|
|
if(!(filehandle->fileaccess & (GENERIC_READ | GENERIC_ALL))) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: fd %d doesn't have GENERIC_READ access: %u", __func__, ((MonoFDHandle*) filehandle)->fd, filehandle->fileaccess);
|
|
mono_w32error_set_last (ERROR_ACCESS_DENIED);
|
return(FALSE);
|
}
|
|
do {
|
MONO_ENTER_GC_SAFE;
|
ret = read (((MonoFDHandle*) filehandle)->fd, buffer, numbytes);
|
MONO_EXIT_GC_SAFE;
|
} while (ret == -1 && errno == EINTR &&
|
!mono_thread_info_is_interrupt_state (info));
|
|
if(ret==-1) {
|
gint err = errno;
|
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: read of fd %d error: %s", __func__, ((MonoFDHandle*) filehandle)->fd, g_strerror(err));
|
mono_w32error_set_last (mono_w32error_unix_to_win32 (err));
|
return(FALSE);
|
}
|
|
if (bytesread != NULL) {
|
*bytesread = ret;
|
MONO_PROFILER_RAISE (fileio, (1, *bytesread));
|
}
|
|
return(TRUE);
|
}
|
|
static gboolean
|
file_write(FileHandle *filehandle, gconstpointer buffer, guint32 numbytes, guint32 *byteswritten)
|
{
|
gint ret;
|
off_t current_pos = 0;
|
MonoThreadInfo *info = mono_thread_info_current ();
|
|
if(byteswritten!=NULL) {
|
*byteswritten=0;
|
}
|
|
if(!(filehandle->fileaccess & GENERIC_WRITE) && !(filehandle->fileaccess & GENERIC_ALL)) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: fd %d doesn't have GENERIC_WRITE access: %u", __func__, ((MonoFDHandle*) filehandle)->fd, filehandle->fileaccess);
|
|
mono_w32error_set_last (ERROR_ACCESS_DENIED);
|
return(FALSE);
|
}
|
|
if (lock_while_writing) {
|
/* Need to lock the region we're about to write to,
|
* because we only do advisory locking on POSIX
|
* systems
|
*/
|
MONO_ENTER_GC_SAFE;
|
current_pos = lseek (((MonoFDHandle*) filehandle)->fd, (off_t)0, SEEK_CUR);
|
MONO_EXIT_GC_SAFE;
|
if (current_pos == -1) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: fd %d lseek failed: %s", __func__, ((MonoFDHandle*) filehandle)->fd, g_strerror (errno));
|
_wapi_set_last_error_from_errno ();
|
return(FALSE);
|
}
|
|
if (_wapi_lock_file_region (((MonoFDHandle*) filehandle)->fd, current_pos, numbytes) == FALSE) {
|
/* The error has already been set */
|
return(FALSE);
|
}
|
}
|
|
do {
|
MONO_ENTER_GC_SAFE;
|
ret = write (((MonoFDHandle*) filehandle)->fd, buffer, numbytes);
|
MONO_EXIT_GC_SAFE;
|
} while (ret == -1 && errno == EINTR &&
|
!mono_thread_info_is_interrupt_state (info));
|
|
if (lock_while_writing) {
|
_wapi_unlock_file_region (((MonoFDHandle*) filehandle)->fd, current_pos, numbytes);
|
}
|
|
if (ret == -1) {
|
if (errno == EINTR) {
|
ret = 0;
|
} else {
|
_wapi_set_last_error_from_errno ();
|
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: write of fd %d error: %s", __func__, ((MonoFDHandle*) filehandle)->fd, g_strerror(errno));
|
|
return(FALSE);
|
}
|
}
|
if (byteswritten != NULL) {
|
*byteswritten = ret;
|
MONO_PROFILER_RAISE (fileio, (0, *byteswritten));
|
}
|
return(TRUE);
|
}
|
|
static gboolean file_flush(FileHandle *filehandle)
|
{
|
gint ret;
|
|
if(!(filehandle->fileaccess & (GENERIC_WRITE | GENERIC_ALL))) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: fd %d doesn't have GENERIC_WRITE access: %u", __func__, ((MonoFDHandle*) filehandle)->fd, filehandle->fileaccess);
|
|
mono_w32error_set_last (ERROR_ACCESS_DENIED);
|
return(FALSE);
|
}
|
|
MONO_ENTER_GC_SAFE;
|
ret=fsync(((MonoFDHandle*) filehandle)->fd);
|
MONO_EXIT_GC_SAFE;
|
if (ret==-1) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: fsync of fd %d error: %s", __func__, ((MonoFDHandle*) filehandle)->fd, g_strerror(errno));
|
|
_wapi_set_last_error_from_errno ();
|
return(FALSE);
|
}
|
|
return(TRUE);
|
}
|
|
static guint32 file_seek(FileHandle *filehandle, gint32 movedistance,
|
gint32 *highmovedistance, gint method)
|
{
|
gint64 offset, newpos;
|
gint whence;
|
guint32 ret;
|
|
if(!(filehandle->fileaccess & (GENERIC_READ | GENERIC_WRITE | GENERIC_ALL))) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: fd %d doesn't have GENERIC_READ or GENERIC_WRITE access: %u", __func__, ((MonoFDHandle*) filehandle)->fd, filehandle->fileaccess);
|
|
mono_w32error_set_last (ERROR_ACCESS_DENIED);
|
return(INVALID_SET_FILE_POINTER);
|
}
|
|
switch(method) {
|
case FILE_BEGIN:
|
whence=SEEK_SET;
|
break;
|
case FILE_CURRENT:
|
whence=SEEK_CUR;
|
break;
|
case FILE_END:
|
whence=SEEK_END;
|
break;
|
default:
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: invalid seek type %d", __func__, method);
|
|
mono_w32error_set_last (ERROR_INVALID_PARAMETER);
|
return(INVALID_SET_FILE_POINTER);
|
}
|
|
#ifdef HAVE_LARGE_FILE_SUPPORT
|
if(highmovedistance==NULL) {
|
offset=movedistance;
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: setting offset to %" G_GINT64_FORMAT " (low %" G_GINT32_FORMAT ")", __func__,
|
offset, movedistance);
|
} else {
|
offset=((gint64) *highmovedistance << 32) | (guint32)movedistance;
|
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: setting offset to %" G_GINT64_FORMAT " 0x%" PRIx64 " (high %" G_GINT32_FORMAT " 0x%" PRIx32 ", low %" G_GINT32_FORMAT " 0x%" PRIx32 ")",
|
__func__, offset, offset, *highmovedistance, *highmovedistance, movedistance, movedistance);
|
}
|
#else
|
offset=movedistance;
|
#endif
|
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: moving fd %d by %" G_GINT64_FORMAT " bytes from %d", __func__, ((MonoFDHandle*) filehandle)->fd, offset, whence);
|
|
#ifdef HOST_ANDROID
|
/* bionic doesn't support -D_FILE_OFFSET_BITS=64 */
|
MONO_ENTER_GC_SAFE;
|
newpos=lseek64(((MonoFDHandle*) filehandle)->fd, offset, whence);
|
MONO_EXIT_GC_SAFE;
|
#else
|
MONO_ENTER_GC_SAFE;
|
newpos=lseek(((MonoFDHandle*) filehandle)->fd, offset, whence);
|
MONO_EXIT_GC_SAFE;
|
#endif
|
if(newpos==-1) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: lseek on fd %d returned error %s", __func__, ((MonoFDHandle*) filehandle)->fd, g_strerror(errno));
|
|
_wapi_set_last_error_from_errno ();
|
return(INVALID_SET_FILE_POINTER);
|
}
|
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: lseek returns %" G_GINT64_FORMAT, __func__, newpos);
|
|
#ifdef HAVE_LARGE_FILE_SUPPORT
|
ret=newpos & 0xFFFFFFFF;
|
if(highmovedistance!=NULL) {
|
*highmovedistance=newpos>>32;
|
}
|
#else
|
ret=newpos;
|
if(highmovedistance!=NULL) {
|
/* Accurate, but potentially dodgy :-) */
|
*highmovedistance=0;
|
}
|
#endif
|
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: move of fd %d returning %" G_GUINT32_FORMAT "/%" G_GINT32_FORMAT, __func__, ((MonoFDHandle*) filehandle)->fd, ret, highmovedistance==NULL?0:*highmovedistance);
|
|
return(ret);
|
}
|
|
static gboolean file_setendoffile(FileHandle *filehandle)
|
{
|
struct stat statbuf;
|
off_t pos;
|
gint ret;
|
MonoThreadInfo *info = mono_thread_info_current ();
|
|
if(!(filehandle->fileaccess & (GENERIC_WRITE | GENERIC_ALL))) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: fd %d doesn't have GENERIC_WRITE access: %u", __func__, ((MonoFDHandle*) filehandle)->fd, filehandle->fileaccess);
|
|
mono_w32error_set_last (ERROR_ACCESS_DENIED);
|
return(FALSE);
|
}
|
|
/* Find the current file position, and the file length. If
|
* the file position is greater than the length, write to
|
* extend the file with a hole. If the file position is less
|
* than the length, truncate the file.
|
*/
|
|
MONO_ENTER_GC_SAFE;
|
ret=fstat(((MonoFDHandle*) filehandle)->fd, &statbuf);
|
MONO_EXIT_GC_SAFE;
|
if(ret==-1) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: fd %d fstat failed: %s", __func__, ((MonoFDHandle*) filehandle)->fd, g_strerror(errno));
|
|
_wapi_set_last_error_from_errno ();
|
return(FALSE);
|
}
|
|
MONO_ENTER_GC_SAFE;
|
pos=lseek(((MonoFDHandle*) filehandle)->fd, (off_t)0, SEEK_CUR);
|
MONO_EXIT_GC_SAFE;
|
if(pos==-1) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: fd %d lseek failed: %s", __func__, ((MonoFDHandle*) filehandle)->fd, g_strerror(errno));
|
|
_wapi_set_last_error_from_errno ();
|
return(FALSE);
|
}
|
|
#ifdef FTRUNCATE_DOESNT_EXTEND
|
off_t size = statbuf.st_size;
|
/* I haven't bothered to write the configure.ac stuff for this
|
* because I don't know if any platform needs it. I'm leaving
|
* this code just in case though
|
*/
|
if(pos>size) {
|
/* Extend the file. Use write() here, because some
|
* manuals say that ftruncate() behaviour is undefined
|
* when the file needs extending. The POSIX spec says
|
* that on XSI-conformant systems it extends, so if
|
* every system we care about conforms, then we can
|
* drop this write.
|
*/
|
do {
|
MONO_ENTER_GC_SAFE;
|
ret = write (((MonoFDHandle*) filehandle)->fd, "", 1);
|
MONO_EXIT_GC_SAFE;
|
} while (ret == -1 && errno == EINTR &&
|
!mono_thread_info_is_interrupt_state (info));
|
|
if(ret==-1) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: fd %d extend write failed: %s", __func__, ((MonoFDHandle*) filehandle)->fd, g_strerror(errno));
|
|
_wapi_set_last_error_from_errno ();
|
return(FALSE);
|
}
|
|
/* And put the file position back after the write */
|
MONO_ENTER_GC_SAFE;
|
ret = lseek (((MonoFDHandle*) filehandle)->fd, pos, SEEK_SET);
|
MONO_EXIT_GC_SAFE;
|
if (ret == -1) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: fd %d second lseek failed: %s", __func__, ((MonoFDHandle*) filehandle)->fd, g_strerror(errno));
|
|
_wapi_set_last_error_from_errno ();
|
return(FALSE);
|
}
|
}
|
#endif
|
|
/* always truncate, because the extend write() adds an extra
|
* byte to the end of the file
|
*/
|
do {
|
MONO_ENTER_GC_SAFE;
|
ret=ftruncate(((MonoFDHandle*) filehandle)->fd, pos);
|
MONO_EXIT_GC_SAFE;
|
}
|
while (ret==-1 && errno==EINTR && !mono_thread_info_is_interrupt_state (info));
|
if(ret==-1) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: fd %d ftruncate failed: %s", __func__, ((MonoFDHandle*) filehandle)->fd, g_strerror(errno));
|
|
_wapi_set_last_error_from_errno ();
|
return(FALSE);
|
}
|
|
return(TRUE);
|
}
|
|
static guint32 file_getfilesize(FileHandle *filehandle, guint32 *highsize)
|
{
|
struct stat statbuf;
|
guint32 size;
|
gint ret;
|
|
if(!(filehandle->fileaccess & (GENERIC_READ | GENERIC_WRITE | GENERIC_ALL))) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: fd %d doesn't have GENERIC_READ or GENERIC_WRITE access: %u", __func__, ((MonoFDHandle*) filehandle)->fd, filehandle->fileaccess);
|
|
mono_w32error_set_last (ERROR_ACCESS_DENIED);
|
return(INVALID_FILE_SIZE);
|
}
|
|
/* If the file has a size with the low bits 0xFFFFFFFF the
|
* caller can't tell if this is an error, so clear the error
|
* value
|
*/
|
mono_w32error_set_last (ERROR_SUCCESS);
|
|
MONO_ENTER_GC_SAFE;
|
ret = fstat(((MonoFDHandle*) filehandle)->fd, &statbuf);
|
MONO_EXIT_GC_SAFE;
|
if (ret == -1) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: fd %d fstat failed: %s", __func__, ((MonoFDHandle*) filehandle)->fd, g_strerror(errno));
|
|
_wapi_set_last_error_from_errno ();
|
return(INVALID_FILE_SIZE);
|
}
|
|
/* fstat indicates block devices as zero-length, so go a different path */
|
#ifdef BLKGETSIZE64
|
if (S_ISBLK(statbuf.st_mode)) {
|
guint64 bigsize;
|
gint res;
|
MONO_ENTER_GC_SAFE;
|
res = ioctl (((MonoFDHandle*) filehandle)->fd, BLKGETSIZE64, &bigsize);
|
MONO_EXIT_GC_SAFE;
|
if (res < 0) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: fd %d ioctl BLKGETSIZE64 failed: %s", __func__, ((MonoFDHandle*) filehandle)->fd, g_strerror(errno));
|
|
_wapi_set_last_error_from_errno ();
|
return(INVALID_FILE_SIZE);
|
}
|
|
size = bigsize & 0xFFFFFFFF;
|
if (highsize != NULL) {
|
*highsize = bigsize>>32;
|
}
|
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: Returning block device size %" G_GUINT32_FORMAT "/%" G_GUINT32_FORMAT,
|
__func__, size, *highsize);
|
|
return(size);
|
}
|
#endif
|
|
#ifdef HAVE_LARGE_FILE_SUPPORT
|
size = statbuf.st_size & 0xFFFFFFFF;
|
if (highsize != NULL) {
|
*highsize = statbuf.st_size>>32;
|
}
|
#else
|
if (highsize != NULL) {
|
/* Accurate, but potentially dodgy :-) */
|
*highsize = 0;
|
}
|
size = statbuf.st_size;
|
#endif
|
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: Returning size %" G_GUINT32_FORMAT "/%" G_GUINT32_FORMAT, __func__, size, *highsize);
|
|
return(size);
|
}
|
|
static gboolean file_getfiletime(FileHandle *filehandle, FILETIME *create_time,
|
FILETIME *access_time,
|
FILETIME *write_time)
|
{
|
struct stat statbuf;
|
guint64 create_ticks, access_ticks, write_ticks;
|
gint ret;
|
|
if(!(filehandle->fileaccess & (GENERIC_READ | GENERIC_ALL))) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: fd %d doesn't have GENERIC_READ access: %u", __func__, ((MonoFDHandle*) filehandle)->fd, filehandle->fileaccess);
|
|
mono_w32error_set_last (ERROR_ACCESS_DENIED);
|
return(FALSE);
|
}
|
|
MONO_ENTER_GC_SAFE;
|
ret=fstat(((MonoFDHandle*) filehandle)->fd, &statbuf);
|
MONO_EXIT_GC_SAFE;
|
if(ret==-1) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: fd %d fstat failed: %s", __func__, ((MonoFDHandle*) filehandle)->fd, g_strerror(errno));
|
|
_wapi_set_last_error_from_errno ();
|
return(FALSE);
|
}
|
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: atime: %ld ctime: %ld mtime: %ld", __func__,
|
statbuf.st_atime, statbuf.st_ctime,
|
statbuf.st_mtime);
|
|
/* Try and guess a meaningful create time by using the older
|
* of atime or ctime
|
*/
|
/* The magic constant comes from msdn documentation
|
* "Converting a time_t Value to a File Time"
|
*/
|
if(statbuf.st_atime < statbuf.st_ctime) {
|
create_ticks=((guint64)statbuf.st_atime*10000000)
|
+ 116444736000000000ULL;
|
} else {
|
create_ticks=((guint64)statbuf.st_ctime*10000000)
|
+ 116444736000000000ULL;
|
}
|
|
access_ticks=((guint64)statbuf.st_atime*10000000)+116444736000000000ULL;
|
write_ticks=((guint64)statbuf.st_mtime*10000000)+116444736000000000ULL;
|
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: aticks: %" G_GUINT64_FORMAT " cticks: %" G_GUINT64_FORMAT " wticks: %" G_GUINT64_FORMAT, __func__,
|
access_ticks, create_ticks, write_ticks);
|
|
if(create_time!=NULL) {
|
create_time->dwLowDateTime = create_ticks & 0xFFFFFFFF;
|
create_time->dwHighDateTime = create_ticks >> 32;
|
}
|
|
if(access_time!=NULL) {
|
access_time->dwLowDateTime = access_ticks & 0xFFFFFFFF;
|
access_time->dwHighDateTime = access_ticks >> 32;
|
}
|
|
if(write_time!=NULL) {
|
write_time->dwLowDateTime = write_ticks & 0xFFFFFFFF;
|
write_time->dwHighDateTime = write_ticks >> 32;
|
}
|
|
return(TRUE);
|
}
|
|
static gboolean file_setfiletime(FileHandle *filehandle,
|
const FILETIME *create_time G_GNUC_UNUSED,
|
const FILETIME *access_time,
|
const FILETIME *write_time)
|
{
|
struct utimbuf utbuf;
|
struct stat statbuf;
|
guint64 access_ticks, write_ticks;
|
gint ret;
|
|
|
if(!(filehandle->fileaccess & (GENERIC_WRITE | GENERIC_ALL))) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: fd %d doesn't have GENERIC_WRITE access: %u", __func__, ((MonoFDHandle*) filehandle)->fd, filehandle->fileaccess);
|
|
mono_w32error_set_last (ERROR_ACCESS_DENIED);
|
return(FALSE);
|
}
|
|
if(filehandle->filename == NULL) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: fd %d unknown filename", __func__, ((MonoFDHandle*) filehandle)->fd);
|
|
mono_w32error_set_last (ERROR_INVALID_HANDLE);
|
return(FALSE);
|
}
|
|
/* Get the current times, so we can put the same times back in
|
* the event that one of the FileTime structs is NULL
|
*/
|
MONO_ENTER_GC_SAFE;
|
ret=fstat (((MonoFDHandle*) filehandle)->fd, &statbuf);
|
MONO_EXIT_GC_SAFE;
|
if(ret==-1) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: fd %d fstat failed: %s", __func__, ((MonoFDHandle*) filehandle)->fd, g_strerror(errno));
|
|
mono_w32error_set_last (ERROR_INVALID_PARAMETER);
|
return(FALSE);
|
}
|
|
if(access_time!=NULL) {
|
access_ticks=((guint64)access_time->dwHighDateTime << 32) +
|
access_time->dwLowDateTime;
|
/* This is (time_t)0. We can actually go to INT_MIN,
|
* but this will do for now.
|
*/
|
if (access_ticks < 116444736000000000ULL) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: attempt to set access time too early",
|
__func__);
|
mono_w32error_set_last (ERROR_INVALID_PARAMETER);
|
return(FALSE);
|
}
|
|
if (sizeof (utbuf.actime) == 4 && ((access_ticks - 116444736000000000ULL) / 10000000) > INT_MAX) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: attempt to set write time that is too big for a 32bits time_t",
|
__func__);
|
mono_w32error_set_last (ERROR_INVALID_PARAMETER);
|
return(FALSE);
|
}
|
|
utbuf.actime=(access_ticks - 116444736000000000ULL) / 10000000;
|
} else {
|
utbuf.actime=statbuf.st_atime;
|
}
|
|
if(write_time!=NULL) {
|
write_ticks=((guint64)write_time->dwHighDateTime << 32) +
|
write_time->dwLowDateTime;
|
/* This is (time_t)0. We can actually go to INT_MIN,
|
* but this will do for now.
|
*/
|
if (write_ticks < 116444736000000000ULL) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: attempt to set write time too early",
|
__func__);
|
mono_w32error_set_last (ERROR_INVALID_PARAMETER);
|
return(FALSE);
|
}
|
if (sizeof (utbuf.modtime) == 4 && ((write_ticks - 116444736000000000ULL) / 10000000) > INT_MAX) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: attempt to set write time that is too big for a 32bits time_t",
|
__func__);
|
mono_w32error_set_last (ERROR_INVALID_PARAMETER);
|
return(FALSE);
|
}
|
|
utbuf.modtime=(write_ticks - 116444736000000000ULL) / 10000000;
|
} else {
|
utbuf.modtime=statbuf.st_mtime;
|
}
|
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: setting fd %d access %ld write %ld", __func__,
|
((MonoFDHandle*) filehandle)->fd, utbuf.actime, utbuf.modtime);
|
|
ret = _wapi_utime (filehandle->filename, &utbuf);
|
if (ret == -1) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: fd %d [%s] utime failed: %s", __func__, ((MonoFDHandle*) filehandle)->fd, filehandle->filename, g_strerror(errno));
|
|
mono_w32error_set_last (ERROR_INVALID_PARAMETER);
|
return(FALSE);
|
}
|
|
return(TRUE);
|
}
|
|
static gboolean
|
console_read(FileHandle *filehandle, gpointer buffer, guint32 numbytes, guint32 *bytesread)
|
{
|
gint ret;
|
MonoThreadInfo *info = mono_thread_info_current ();
|
|
if(bytesread!=NULL) {
|
*bytesread=0;
|
}
|
|
if(!(filehandle->fileaccess & (GENERIC_READ | GENERIC_ALL))) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: fd %d doesn't have GENERIC_READ access: %u", __func__, ((MonoFDHandle*) filehandle)->fd, filehandle->fileaccess);
|
|
mono_w32error_set_last (ERROR_ACCESS_DENIED);
|
return(FALSE);
|
}
|
|
do {
|
MONO_ENTER_GC_SAFE;
|
ret=read(((MonoFDHandle*) filehandle)->fd, buffer, numbytes);
|
MONO_EXIT_GC_SAFE;
|
} while (ret==-1 && errno==EINTR && !mono_thread_info_is_interrupt_state (info));
|
|
if(ret==-1) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: read of fd %d error: %s", __func__, ((MonoFDHandle*) filehandle)->fd, g_strerror(errno));
|
|
_wapi_set_last_error_from_errno ();
|
return(FALSE);
|
}
|
|
if(bytesread!=NULL) {
|
*bytesread=ret;
|
}
|
|
return(TRUE);
|
}
|
|
static gboolean
|
console_write(FileHandle *filehandle, gconstpointer buffer, guint32 numbytes, guint32 *byteswritten)
|
{
|
gint ret;
|
MonoThreadInfo *info = mono_thread_info_current ();
|
|
if(byteswritten!=NULL) {
|
*byteswritten=0;
|
}
|
|
if(!(filehandle->fileaccess & (GENERIC_WRITE | GENERIC_ALL))) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: fd %d doesn't have GENERIC_WRITE access: %u", __func__, ((MonoFDHandle*) filehandle)->fd, filehandle->fileaccess);
|
|
mono_w32error_set_last (ERROR_ACCESS_DENIED);
|
return(FALSE);
|
}
|
|
do {
|
MONO_ENTER_GC_SAFE;
|
ret = write(((MonoFDHandle*) filehandle)->fd, buffer, numbytes);
|
MONO_EXIT_GC_SAFE;
|
} while (ret == -1 && errno == EINTR &&
|
!mono_thread_info_is_interrupt_state (info));
|
|
if (ret == -1) {
|
if (errno == EINTR) {
|
ret = 0;
|
} else {
|
_wapi_set_last_error_from_errno ();
|
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: write of fd %d error: %s", __func__, ((MonoFDHandle*) filehandle)->fd, g_strerror(errno));
|
|
return(FALSE);
|
}
|
}
|
if(byteswritten!=NULL) {
|
*byteswritten=ret;
|
}
|
|
return(TRUE);
|
}
|
|
static gboolean
|
pipe_read (FileHandle *filehandle, gpointer buffer, guint32 numbytes, guint32 *bytesread)
|
{
|
gint ret;
|
MonoThreadInfo *info = mono_thread_info_current ();
|
|
if(bytesread!=NULL) {
|
*bytesread=0;
|
}
|
|
if(!(filehandle->fileaccess & (GENERIC_READ | GENERIC_ALL))) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: fd %d doesn't have GENERIC_READ access: %u", __func__, ((MonoFDHandle*) filehandle)->fd, filehandle->fileaccess);
|
|
mono_w32error_set_last (ERROR_ACCESS_DENIED);
|
return(FALSE);
|
}
|
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: reading up to %" G_GUINT32_FORMAT " bytes from pipe %d", __func__, numbytes, ((MonoFDHandle*) filehandle)->fd);
|
|
do {
|
MONO_ENTER_GC_SAFE;
|
ret=read(((MonoFDHandle*) filehandle)->fd, buffer, numbytes);
|
MONO_EXIT_GC_SAFE;
|
} while (ret==-1 && errno==EINTR && !mono_thread_info_is_interrupt_state (info));
|
|
if (ret == -1) {
|
if (errno == EINTR) {
|
ret = 0;
|
} else {
|
_wapi_set_last_error_from_errno ();
|
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: read of fd %d error: %s", __func__,((MonoFDHandle*) filehandle)->fd, g_strerror(errno));
|
|
return(FALSE);
|
}
|
}
|
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: read %d bytes from pipe %d", __func__, ret, ((MonoFDHandle*) filehandle)->fd);
|
|
if(bytesread!=NULL) {
|
*bytesread=ret;
|
}
|
|
return(TRUE);
|
}
|
|
static gboolean
|
pipe_write(FileHandle *filehandle, gconstpointer buffer, guint32 numbytes, guint32 *byteswritten)
|
{
|
gint ret;
|
MonoThreadInfo *info = mono_thread_info_current ();
|
|
if(byteswritten!=NULL) {
|
*byteswritten=0;
|
}
|
|
if(!(filehandle->fileaccess & (GENERIC_WRITE | GENERIC_ALL))) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: fd %d doesn't have GENERIC_WRITE access: %u", __func__, ((MonoFDHandle*) filehandle)->fd, filehandle->fileaccess);
|
|
mono_w32error_set_last (ERROR_ACCESS_DENIED);
|
return(FALSE);
|
}
|
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: writing up to %" G_GUINT32_FORMAT " bytes to pipe %d", __func__, numbytes, ((MonoFDHandle*) filehandle)->fd);
|
|
do {
|
MONO_ENTER_GC_SAFE;
|
ret = write (((MonoFDHandle*) filehandle)->fd, buffer, numbytes);
|
MONO_EXIT_GC_SAFE;
|
} while (ret == -1 && errno == EINTR &&
|
!mono_thread_info_is_interrupt_state (info));
|
|
if (ret == -1) {
|
if (errno == EINTR) {
|
ret = 0;
|
} else {
|
_wapi_set_last_error_from_errno ();
|
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: write of fd %d error: %s", __func__,((MonoFDHandle*) filehandle)->fd, g_strerror(errno));
|
|
return(FALSE);
|
}
|
}
|
if(byteswritten!=NULL) {
|
*byteswritten=ret;
|
}
|
|
return(TRUE);
|
}
|
|
static gint convert_flags(guint32 fileaccess, guint32 createmode)
|
{
|
gint flags=0;
|
|
switch(fileaccess) {
|
case GENERIC_READ:
|
flags=O_RDONLY;
|
break;
|
case GENERIC_WRITE:
|
flags=O_WRONLY;
|
break;
|
case GENERIC_READ|GENERIC_WRITE:
|
flags=O_RDWR;
|
break;
|
default:
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: Unknown access type 0x%" PRIx32, __func__,
|
fileaccess);
|
break;
|
}
|
|
switch(createmode) {
|
case CREATE_NEW:
|
flags|=O_CREAT|O_EXCL;
|
break;
|
case CREATE_ALWAYS:
|
flags|=O_CREAT|O_TRUNC;
|
break;
|
case OPEN_EXISTING:
|
break;
|
case OPEN_ALWAYS:
|
flags|=O_CREAT;
|
break;
|
case TRUNCATE_EXISTING:
|
flags|=O_TRUNC;
|
break;
|
default:
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: Unknown create mode 0x%" PRIx32, __func__,
|
createmode);
|
break;
|
}
|
|
return(flags);
|
}
|
|
#if 0 /* unused */
|
static mode_t convert_perms(guint32 sharemode)
|
{
|
mode_t perms=0600;
|
|
if(sharemode&FILE_SHARE_READ) {
|
perms|=044;
|
}
|
if(sharemode&FILE_SHARE_WRITE) {
|
perms|=022;
|
}
|
|
return(perms);
|
}
|
#endif
|
|
static gboolean share_allows_open (struct stat *statbuf, guint32 sharemode,
|
guint32 fileaccess,
|
FileShare **share_info)
|
{
|
gboolean file_already_shared;
|
guint32 file_existing_share, file_existing_access;
|
|
file_already_shared = file_share_get (statbuf->st_dev, statbuf->st_ino, sharemode, fileaccess, &file_existing_share, &file_existing_access, share_info);
|
|
if (file_already_shared) {
|
/* The reference to this share info was incremented
|
* when we looked it up, so be careful to put it back
|
* if we conclude we can't use this file.
|
*/
|
if (file_existing_share == 0) {
|
/* Quick and easy, no possibility to share */
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: Share mode prevents open: requested access: 0x%" PRIx32 ", file has sharing = NONE", __func__, fileaccess);
|
|
file_share_release (*share_info);
|
*share_info = NULL;
|
|
return(FALSE);
|
}
|
|
if (((file_existing_share == FILE_SHARE_READ) &&
|
(fileaccess != GENERIC_READ)) ||
|
((file_existing_share == FILE_SHARE_WRITE) &&
|
(fileaccess != GENERIC_WRITE))) {
|
/* New access mode doesn't match up */
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: Share mode prevents open: requested access: 0x%" PRIx32 ", file has sharing: 0x%" PRIx32, __func__, fileaccess, file_existing_share);
|
|
file_share_release (*share_info);
|
*share_info = NULL;
|
|
return(FALSE);
|
}
|
|
if (((file_existing_access & GENERIC_READ) &&
|
!(sharemode & FILE_SHARE_READ)) ||
|
((file_existing_access & GENERIC_WRITE) &&
|
!(sharemode & FILE_SHARE_WRITE))) {
|
/* New share mode doesn't match up */
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: Access mode prevents open: requested share: 0x%" PRIx32 ", file has access: 0x%" PRIx32, __func__, sharemode, file_existing_access);
|
|
file_share_release (*share_info);
|
*share_info = NULL;
|
|
return(FALSE);
|
}
|
} else {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: New file!", __func__);
|
}
|
|
return(TRUE);
|
}
|
|
|
static gboolean
|
share_allows_delete (struct stat *statbuf, FileShare **share_info)
|
{
|
gboolean file_already_shared;
|
guint32 file_existing_share, file_existing_access;
|
|
file_already_shared = file_share_get (statbuf->st_dev, statbuf->st_ino, FILE_SHARE_DELETE, GENERIC_READ, &file_existing_share, &file_existing_access, share_info);
|
|
if (file_already_shared) {
|
/* The reference to this share info was incremented
|
* when we looked it up, so be careful to put it back
|
* if we conclude we can't use this file.
|
*/
|
if (file_existing_share == 0) {
|
/* Quick and easy, no possibility to share */
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: Share mode prevents open: requested access: 0x%" PRIx32 ", file has sharing = NONE", __func__, (*share_info)->access);
|
|
file_share_release (*share_info);
|
*share_info = NULL;
|
|
return(FALSE);
|
}
|
|
if (!(file_existing_share & FILE_SHARE_DELETE)) {
|
/* New access mode doesn't match up */
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: Share mode prevents open: requested access: 0x%" PRIx32 ", file has sharing: 0x%" PRIx32, __func__, (*share_info)->access, file_existing_share);
|
|
file_share_release (*share_info);
|
*share_info = NULL;
|
|
return(FALSE);
|
}
|
} else {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: New file!", __func__);
|
}
|
|
return(TRUE);
|
}
|
|
gpointer
|
mono_w32file_create(const gunichar2 *name, guint32 fileaccess, guint32 sharemode, guint32 createmode, guint32 attrs)
|
{
|
FileHandle *filehandle;
|
MonoFDType type;
|
gint flags=convert_flags(fileaccess, createmode);
|
/*mode_t perms=convert_perms(sharemode);*/
|
/* we don't use sharemode, because that relates to sharing of
|
* the file when the file is open and is already handled by
|
* other code, perms instead are the on-disk permissions and
|
* this is a sane default.
|
*/
|
mode_t perms=0666;
|
gchar *filename;
|
gint fd, ret;
|
struct stat statbuf;
|
|
if (attrs & FILE_ATTRIBUTE_TEMPORARY)
|
perms = 0600;
|
|
if (attrs & FILE_ATTRIBUTE_ENCRYPTED){
|
mono_w32error_set_last (ERROR_ENCRYPTION_FAILED);
|
return INVALID_HANDLE_VALUE;
|
}
|
|
if (name == NULL) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: name is NULL", __func__);
|
|
mono_w32error_set_last (ERROR_INVALID_NAME);
|
return(INVALID_HANDLE_VALUE);
|
}
|
|
filename = mono_unicode_to_external (name);
|
if (filename == NULL) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: unicode conversion returned NULL", __func__);
|
|
mono_w32error_set_last (ERROR_INVALID_NAME);
|
return(INVALID_HANDLE_VALUE);
|
}
|
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: Opening %s with share 0x%" PRIx32 " and access 0x%" PRIx32, __func__,
|
filename, sharemode, fileaccess);
|
|
fd = _wapi_open (filename, flags, perms);
|
|
/* If we were trying to open a directory with write permissions
|
* (e.g. O_WRONLY or O_RDWR), this call will fail with
|
* EISDIR. However, this is a bit bogus because calls to
|
* manipulate the directory (e.g. mono_w32file_set_times) will still work on
|
* the directory because they use other API calls
|
* (e.g. utime()). Hence, if we failed with the EISDIR error, try
|
* to open the directory again without write permission.
|
*/
|
if (fd == -1 && errno == EISDIR)
|
{
|
/* Try again but don't try to make it writable */
|
fd = _wapi_open (filename, flags & ~(O_RDWR|O_WRONLY), perms);
|
}
|
|
if (fd == -1) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: Error opening file %s: %s", __func__, filename, g_strerror(errno));
|
_wapi_set_last_path_error_from_errno (NULL, filename);
|
g_free (filename);
|
|
return(INVALID_HANDLE_VALUE);
|
}
|
|
MONO_ENTER_GC_SAFE;
|
ret = fstat (fd, &statbuf);
|
MONO_EXIT_GC_SAFE;
|
if (ret == -1) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: fstat error of file %s: %s", __func__, filename, g_strerror (errno));
|
_wapi_set_last_error_from_errno ();
|
MONO_ENTER_GC_SAFE;
|
close (fd);
|
MONO_EXIT_GC_SAFE;
|
|
return(INVALID_HANDLE_VALUE);
|
}
|
|
#ifndef S_ISFIFO
|
#define S_ISFIFO(m) ((m & S_IFIFO) != 0)
|
#endif
|
if (S_ISFIFO (statbuf.st_mode)) {
|
type = MONO_FDTYPE_PIPE;
|
/* maintain invariant that pipes have no filename */
|
g_free (filename);
|
filename = NULL;
|
} else if (S_ISCHR (statbuf.st_mode)) {
|
type = MONO_FDTYPE_CONSOLE;
|
} else {
|
type = MONO_FDTYPE_FILE;
|
}
|
|
filehandle = file_data_create (type, fd);
|
filehandle->filename = filename;
|
filehandle->fileaccess = fileaccess;
|
filehandle->sharemode = sharemode;
|
filehandle->attrs = attrs;
|
|
if (!share_allows_open (&statbuf, filehandle->sharemode, filehandle->fileaccess, &filehandle->share_info)) {
|
mono_w32error_set_last (ERROR_SHARING_VIOLATION);
|
MONO_ENTER_GC_SAFE;
|
close (((MonoFDHandle*) filehandle)->fd);
|
MONO_EXIT_GC_SAFE;
|
|
mono_fdhandle_unref ((MonoFDHandle*) filehandle);
|
return (INVALID_HANDLE_VALUE);
|
}
|
if (!filehandle->share_info) {
|
/* No space, so no more files can be opened */
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: No space in the share table", __func__);
|
|
mono_w32error_set_last (ERROR_TOO_MANY_OPEN_FILES);
|
MONO_ENTER_GC_SAFE;
|
close (((MonoFDHandle*) filehandle)->fd);
|
MONO_EXIT_GC_SAFE;
|
|
mono_fdhandle_unref ((MonoFDHandle*) filehandle);
|
return(INVALID_HANDLE_VALUE);
|
}
|
|
#ifdef HAVE_POSIX_FADVISE
|
if (attrs & FILE_FLAG_SEQUENTIAL_SCAN) {
|
MONO_ENTER_GC_SAFE;
|
posix_fadvise (((MonoFDHandle*) filehandle)->fd, 0, 0, POSIX_FADV_SEQUENTIAL);
|
MONO_EXIT_GC_SAFE;
|
}
|
if (attrs & FILE_FLAG_RANDOM_ACCESS) {
|
MONO_ENTER_GC_SAFE;
|
posix_fadvise (((MonoFDHandle*) filehandle)->fd, 0, 0, POSIX_FADV_RANDOM);
|
MONO_EXIT_GC_SAFE;
|
}
|
#endif
|
|
#ifdef F_RDAHEAD
|
if (attrs & FILE_FLAG_SEQUENTIAL_SCAN) {
|
MONO_ENTER_GC_SAFE;
|
fcntl(((MonoFDHandle*) filehandle)->fd, F_RDAHEAD, 1);
|
MONO_EXIT_GC_SAFE;
|
}
|
#endif
|
|
mono_fdhandle_insert ((MonoFDHandle*) filehandle);
|
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: returning handle %p", __func__, GINT_TO_POINTER(((MonoFDHandle*) filehandle)->fd));
|
|
return GINT_TO_POINTER(((MonoFDHandle*) filehandle)->fd);
|
}
|
|
gboolean
|
mono_w32file_close (gpointer handle)
|
{
|
if (!mono_fdhandle_close (GPOINTER_TO_INT (handle))) {
|
mono_w32error_set_last (ERROR_INVALID_HANDLE);
|
return FALSE;
|
}
|
|
return TRUE;
|
}
|
|
gboolean mono_w32file_delete(const gunichar2 *name)
|
{
|
gchar *filename;
|
gint retval;
|
gboolean ret = FALSE;
|
#if 0
|
struct stat statbuf;
|
FileShare *shareinfo;
|
#endif
|
|
if(name==NULL) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: name is NULL", __func__);
|
|
mono_w32error_set_last (ERROR_INVALID_NAME);
|
return(FALSE);
|
}
|
|
filename=mono_unicode_to_external(name);
|
if(filename==NULL) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: unicode conversion returned NULL", __func__);
|
|
mono_w32error_set_last (ERROR_INVALID_NAME);
|
return(FALSE);
|
}
|
|
#if 0
|
/* Check to make sure sharing allows us to open the file for
|
* writing. See bug 323389.
|
*
|
* Do the checks that don't need an open file descriptor, for
|
* simplicity's sake. If we really have to do the full checks
|
* then we can implement that later.
|
*/
|
if (_wapi_stat (filename, &statbuf) < 0) {
|
_wapi_set_last_path_error_from_errno (NULL, filename);
|
g_free (filename);
|
return(FALSE);
|
}
|
|
if (share_allows_open (&statbuf, 0, GENERIC_WRITE,
|
&shareinfo) == FALSE) {
|
mono_w32error_set_last (ERROR_SHARING_VIOLATION);
|
g_free (filename);
|
return FALSE;
|
}
|
if (shareinfo)
|
file_share_release (shareinfo);
|
#endif
|
|
retval = _wapi_unlink (filename);
|
|
if (retval == -1) {
|
/* On linux, calling unlink on an non-existing file in a read-only mount will fail with EROFS.
|
* The expected behavior is for this function to return FALSE and not trigger an exception.
|
* To work around this behavior, we stat the file on failure.
|
*
|
* This was supposedly fixed on kernel 3.0 [1] but we could reproduce it with Ubuntu 16.04 which has kernel 4.4.
|
* We can't remove this workaround until the early 2020's when most Android deviced will have a fix.
|
* [1] https://github.com/torvalds/linux/commit/50338b889dc504c69e0cb316ac92d1b9e51f3c8a
|
*/
|
if (errno == EROFS) {
|
MonoIOStat stat;
|
if (mono_w32file_get_attributes_ex (name, &stat)) //The file exists, so must be due the RO file system
|
errno = EROFS;
|
}
|
_wapi_set_last_path_error_from_errno (NULL, filename);
|
} else {
|
ret = TRUE;
|
}
|
|
g_free(filename);
|
|
return(ret);
|
}
|
|
static gboolean
|
MoveFile (const gunichar2 *name, const gunichar2 *dest_name)
|
{
|
gchar *utf8_name, *utf8_dest_name;
|
gint result, errno_copy;
|
struct stat stat_src, stat_dest;
|
gboolean ret = FALSE;
|
FileShare *shareinfo;
|
|
if(name==NULL) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: name is NULL", __func__);
|
|
mono_w32error_set_last (ERROR_INVALID_NAME);
|
return(FALSE);
|
}
|
|
utf8_name = mono_unicode_to_external (name);
|
if (utf8_name == NULL) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: unicode conversion returned NULL", __func__);
|
|
mono_w32error_set_last (ERROR_INVALID_NAME);
|
return FALSE;
|
}
|
|
if(dest_name==NULL) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: name is NULL", __func__);
|
|
g_free (utf8_name);
|
mono_w32error_set_last (ERROR_INVALID_NAME);
|
return(FALSE);
|
}
|
|
utf8_dest_name = mono_unicode_to_external (dest_name);
|
if (utf8_dest_name == NULL) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: unicode conversion returned NULL", __func__);
|
|
g_free (utf8_name);
|
mono_w32error_set_last (ERROR_INVALID_NAME);
|
return FALSE;
|
}
|
|
/*
|
* In C# land we check for the existence of src, but not for dest.
|
* We check it here and return the failure if dest exists and is not
|
* the same file as src.
|
*/
|
if (_wapi_stat (utf8_name, &stat_src) < 0) {
|
if (errno != ENOENT || _wapi_lstat (utf8_name, &stat_src) < 0) {
|
_wapi_set_last_path_error_from_errno (NULL, utf8_name);
|
g_free (utf8_name);
|
g_free (utf8_dest_name);
|
return FALSE;
|
}
|
}
|
|
if (!_wapi_stat (utf8_dest_name, &stat_dest)) {
|
if (stat_dest.st_dev != stat_src.st_dev ||
|
stat_dest.st_ino != stat_src.st_ino) {
|
g_free (utf8_name);
|
g_free (utf8_dest_name);
|
mono_w32error_set_last (ERROR_ALREADY_EXISTS);
|
return FALSE;
|
}
|
}
|
|
/* Check to make that we have delete sharing permission.
|
* See https://bugzilla.xamarin.com/show_bug.cgi?id=17009
|
*
|
* Do the checks that don't need an open file descriptor, for
|
* simplicity's sake. If we really have to do the full checks
|
* then we can implement that later.
|
*/
|
if (share_allows_delete (&stat_src, &shareinfo) == FALSE) {
|
mono_w32error_set_last (ERROR_SHARING_VIOLATION);
|
return FALSE;
|
}
|
if (shareinfo) {
|
file_share_release (shareinfo);
|
shareinfo = NULL;
|
}
|
|
result = _wapi_rename (utf8_name, utf8_dest_name);
|
errno_copy = errno;
|
|
if (result == -1) {
|
switch(errno_copy) {
|
case EEXIST:
|
mono_w32error_set_last (ERROR_ALREADY_EXISTS);
|
break;
|
|
case EXDEV:
|
/* Ignore here, it is dealt with below */
|
break;
|
|
case ENOENT:
|
/* We already know src exists. Must be dest that doesn't exist. */
|
_wapi_set_last_path_error_from_errno (NULL, utf8_dest_name);
|
break;
|
|
default:
|
_wapi_set_last_error_from_errno ();
|
}
|
}
|
|
g_free (utf8_name);
|
g_free (utf8_dest_name);
|
|
if (result != 0 && errno_copy == EXDEV) {
|
gint32 copy_error;
|
|
if (S_ISDIR (stat_src.st_mode)) {
|
mono_w32error_set_last (ERROR_NOT_SAME_DEVICE);
|
return FALSE;
|
}
|
/* Try a copy to the new location, and delete the source */
|
if (!mono_w32file_copy (name, dest_name, FALSE, ©_error)) {
|
/* mono_w32file_copy will set the error */
|
return(FALSE);
|
}
|
|
return(mono_w32file_delete (name));
|
}
|
|
if (result == 0) {
|
ret = TRUE;
|
}
|
|
return(ret);
|
}
|
|
static gboolean
|
write_file (gint src_fd, gint dest_fd, struct stat *st_src, gboolean report_errors)
|
{
|
gint remain, n;
|
gchar *buf, *wbuf;
|
gint buf_size = st_src->st_blksize;
|
MonoThreadInfo *info = mono_thread_info_current ();
|
|
buf_size = buf_size < 8192 ? 8192 : (buf_size > 65536 ? 65536 : buf_size);
|
buf = (gchar *) g_malloc (buf_size);
|
|
for (;;) {
|
MONO_ENTER_GC_SAFE;
|
remain = read (src_fd, buf, buf_size);
|
MONO_EXIT_GC_SAFE;
|
if (remain < 0) {
|
if (errno == EINTR && !mono_thread_info_is_interrupt_state (info))
|
continue;
|
|
if (report_errors)
|
_wapi_set_last_error_from_errno ();
|
|
g_free (buf);
|
return FALSE;
|
}
|
if (remain == 0) {
|
break;
|
}
|
|
wbuf = buf;
|
while (remain > 0) {
|
MONO_ENTER_GC_SAFE;
|
n = write (dest_fd, wbuf, remain);
|
MONO_EXIT_GC_SAFE;
|
if (n < 0) {
|
if (errno == EINTR && !mono_thread_info_is_interrupt_state (info))
|
continue;
|
|
if (report_errors)
|
_wapi_set_last_error_from_errno ();
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: write failed.", __func__);
|
g_free (buf);
|
return FALSE;
|
}
|
|
remain -= n;
|
wbuf += n;
|
}
|
}
|
|
g_free (buf);
|
return TRUE ;
|
}
|
|
static gboolean
|
CopyFile (const gunichar2 *name, const gunichar2 *dest_name, gboolean fail_if_exists)
|
{
|
gchar *utf8_src, *utf8_dest;
|
gint src_fd, dest_fd;
|
struct stat st, dest_st;
|
struct utimbuf dest_time;
|
gboolean ret = TRUE;
|
gint ret_utime;
|
gint syscall_res;
|
|
if(name==NULL) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: name is NULL", __func__);
|
|
mono_w32error_set_last (ERROR_INVALID_NAME);
|
return(FALSE);
|
}
|
|
utf8_src = mono_unicode_to_external (name);
|
if (utf8_src == NULL) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: unicode conversion of source returned NULL",
|
__func__);
|
|
mono_w32error_set_last (ERROR_INVALID_PARAMETER);
|
return(FALSE);
|
}
|
|
if(dest_name==NULL) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: dest is NULL", __func__);
|
|
g_free (utf8_src);
|
mono_w32error_set_last (ERROR_INVALID_NAME);
|
return(FALSE);
|
}
|
|
utf8_dest = mono_unicode_to_external (dest_name);
|
if (utf8_dest == NULL) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: unicode conversion of dest returned NULL",
|
__func__);
|
|
mono_w32error_set_last (ERROR_INVALID_PARAMETER);
|
|
g_free (utf8_src);
|
|
return(FALSE);
|
}
|
|
src_fd = _wapi_open (utf8_src, O_RDONLY, 0);
|
if (src_fd < 0) {
|
_wapi_set_last_path_error_from_errno (NULL, utf8_src);
|
|
g_free (utf8_src);
|
g_free (utf8_dest);
|
|
return(FALSE);
|
}
|
|
MONO_ENTER_GC_SAFE;
|
syscall_res = fstat (src_fd, &st);
|
MONO_EXIT_GC_SAFE;
|
if (syscall_res < 0) {
|
_wapi_set_last_error_from_errno ();
|
|
g_free (utf8_src);
|
g_free (utf8_dest);
|
MONO_ENTER_GC_SAFE;
|
close (src_fd);
|
MONO_EXIT_GC_SAFE;
|
|
return(FALSE);
|
}
|
|
/* Before trying to open/create the dest, we need to report a 'file busy'
|
* error if src and dest are actually the same file. We do the check here to take
|
* advantage of the IOMAP capability */
|
if (!_wapi_stat (utf8_dest, &dest_st) && st.st_dev == dest_st.st_dev &&
|
st.st_ino == dest_st.st_ino) {
|
|
g_free (utf8_src);
|
g_free (utf8_dest);
|
MONO_ENTER_GC_SAFE;
|
close (src_fd);
|
MONO_EXIT_GC_SAFE;
|
|
mono_w32error_set_last (ERROR_SHARING_VIOLATION);
|
return (FALSE);
|
}
|
|
if (fail_if_exists) {
|
dest_fd = _wapi_open (utf8_dest, O_WRONLY | O_CREAT | O_EXCL, st.st_mode);
|
} else {
|
/* FIXME: it kinda sucks that this code path potentially scans
|
* the directory twice due to the weird mono_w32error_set_last()
|
* behavior. */
|
dest_fd = _wapi_open (utf8_dest, O_WRONLY | O_TRUNC, st.st_mode);
|
if (dest_fd < 0) {
|
/* The file does not exist, try creating it */
|
dest_fd = _wapi_open (utf8_dest, O_WRONLY | O_CREAT | O_TRUNC, st.st_mode);
|
} else {
|
/* Apparently this error is set if we
|
* overwrite the dest file
|
*/
|
mono_w32error_set_last (ERROR_ALREADY_EXISTS);
|
}
|
}
|
if (dest_fd < 0) {
|
_wapi_set_last_error_from_errno ();
|
|
g_free (utf8_src);
|
g_free (utf8_dest);
|
MONO_ENTER_GC_SAFE;
|
close (src_fd);
|
MONO_EXIT_GC_SAFE;
|
|
return(FALSE);
|
}
|
|
if (!write_file (src_fd, dest_fd, &st, TRUE))
|
ret = FALSE;
|
|
close (src_fd);
|
close (dest_fd);
|
|
dest_time.modtime = st.st_mtime;
|
dest_time.actime = st.st_atime;
|
MONO_ENTER_GC_SAFE;
|
ret_utime = utime (utf8_dest, &dest_time);
|
MONO_EXIT_GC_SAFE;
|
if (ret_utime == -1)
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: file [%s] utime failed: %s", __func__, utf8_dest, g_strerror(errno));
|
|
g_free (utf8_src);
|
g_free (utf8_dest);
|
|
return ret;
|
}
|
|
static gchar*
|
convert_arg_to_utf8 (const gunichar2 *arg, const gchar *arg_name)
|
{
|
gchar *utf8_ret;
|
|
if (arg == NULL) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: %s is NULL", __func__, arg_name);
|
mono_w32error_set_last (ERROR_INVALID_NAME);
|
return NULL;
|
}
|
|
utf8_ret = mono_unicode_to_external (arg);
|
if (utf8_ret == NULL) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: unicode conversion of %s returned NULL",
|
__func__, arg_name);
|
mono_w32error_set_last (ERROR_INVALID_PARAMETER);
|
return NULL;
|
}
|
|
return utf8_ret;
|
}
|
|
static gboolean
|
ReplaceFile (const gunichar2 *replacedFileName, const gunichar2 *replacementFileName, const gunichar2 *backupFileName, guint32 replaceFlags, gpointer exclude, gpointer reserved)
|
{
|
gint result, backup_fd = -1,replaced_fd = -1;
|
gchar *utf8_replacedFileName, *utf8_replacementFileName = NULL, *utf8_backupFileName = NULL;
|
struct stat stBackup;
|
gboolean ret = FALSE;
|
|
if (!(utf8_replacedFileName = convert_arg_to_utf8 (replacedFileName, "replacedFileName")))
|
return FALSE;
|
if (!(utf8_replacementFileName = convert_arg_to_utf8 (replacementFileName, "replacementFileName")))
|
goto replace_cleanup;
|
if (backupFileName != NULL) {
|
if (!(utf8_backupFileName = convert_arg_to_utf8 (backupFileName, "backupFileName")))
|
goto replace_cleanup;
|
}
|
|
if (utf8_backupFileName) {
|
// Open the backup file for read so we can restore the file if an error occurs.
|
backup_fd = _wapi_open (utf8_backupFileName, O_RDONLY, 0);
|
result = _wapi_rename (utf8_replacedFileName, utf8_backupFileName);
|
if (result == -1)
|
goto replace_cleanup;
|
}
|
|
result = _wapi_rename (utf8_replacementFileName, utf8_replacedFileName);
|
if (result == -1) {
|
_wapi_set_last_path_error_from_errno (NULL, utf8_replacementFileName);
|
_wapi_rename (utf8_backupFileName, utf8_replacedFileName);
|
if (backup_fd != -1 && !fstat (backup_fd, &stBackup)) {
|
replaced_fd = _wapi_open (utf8_backupFileName, O_WRONLY | O_CREAT | O_TRUNC,
|
stBackup.st_mode);
|
|
if (replaced_fd == -1)
|
goto replace_cleanup;
|
|
write_file (backup_fd, replaced_fd, &stBackup, FALSE);
|
}
|
|
goto replace_cleanup;
|
}
|
|
ret = TRUE;
|
|
replace_cleanup:
|
g_free (utf8_replacedFileName);
|
g_free (utf8_replacementFileName);
|
g_free (utf8_backupFileName);
|
if (backup_fd != -1) {
|
MONO_ENTER_GC_SAFE;
|
close (backup_fd);
|
MONO_EXIT_GC_SAFE;
|
}
|
if (replaced_fd != -1) {
|
MONO_ENTER_GC_SAFE;
|
close (replaced_fd);
|
MONO_EXIT_GC_SAFE;
|
}
|
return ret;
|
}
|
|
static gpointer
|
_wapi_stdhandle_create (gint fd, const gchar *name)
|
{
|
gint flags;
|
FileHandle *filehandle;
|
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: creating standard handle type %s, fd %d", __func__, name, fd);
|
|
/* Check if fd is valid */
|
do {
|
flags = fcntl(fd, F_GETFL);
|
} while (flags == -1 && errno == EINTR);
|
|
if (flags == -1) {
|
/* Invalid fd. Not really much point checking for EBADF
|
* specifically
|
*/
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: fcntl error on fd %d: %s", __func__, fd, g_strerror(errno));
|
|
mono_w32error_set_last (mono_w32error_unix_to_win32 (errno));
|
return INVALID_HANDLE_VALUE;
|
}
|
|
filehandle = file_data_create (MONO_FDTYPE_CONSOLE, fd);
|
filehandle->filename = g_strdup(name);
|
|
switch (flags & (O_RDONLY|O_WRONLY|O_RDWR)) {
|
case O_RDONLY:
|
filehandle->fileaccess = GENERIC_READ;
|
break;
|
case O_WRONLY:
|
filehandle->fileaccess = GENERIC_WRITE;
|
break;
|
case O_RDWR:
|
filehandle->fileaccess = GENERIC_READ | GENERIC_WRITE;
|
break;
|
default:
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: Can't figure out flags 0x%x", __func__, flags);
|
filehandle->fileaccess = 0;
|
break;
|
}
|
|
/* some default security attributes might be needed */
|
filehandle->security_attributes = 0;
|
|
/* Apparently input handles can't be written to. (I don't
|
* know if output or error handles can't be read from.)
|
*/
|
if (fd == 0)
|
filehandle->fileaccess &= ~GENERIC_WRITE;
|
|
filehandle->sharemode = 0;
|
filehandle->attrs = 0;
|
|
if (!mono_fdhandle_try_insert ((MonoFDHandle*) filehandle)) {
|
/* we raced between 2 invocations of _wapi_stdhandle_create */
|
mono_fdhandle_unref ((MonoFDHandle*) filehandle);
|
return GINT_TO_POINTER(fd);
|
}
|
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: returning handle %p", __func__, GINT_TO_POINTER(((MonoFDHandle*) filehandle)->fd));
|
|
return GINT_TO_POINTER(((MonoFDHandle*) filehandle)->fd);
|
}
|
|
enum {
|
STD_INPUT_HANDLE = -10,
|
STD_OUTPUT_HANDLE = -11,
|
STD_ERROR_HANDLE = -12,
|
};
|
|
static gpointer
|
mono_w32file_get_std_handle (gint stdhandle)
|
{
|
FileHandle **filehandle;
|
gint fd;
|
const gchar *name;
|
|
switch(stdhandle) {
|
case STD_INPUT_HANDLE:
|
fd = 0;
|
name = "<stdin>";
|
break;
|
|
case STD_OUTPUT_HANDLE:
|
fd = 1;
|
name = "<stdout>";
|
break;
|
|
case STD_ERROR_HANDLE:
|
fd = 2;
|
name = "<stderr>";
|
break;
|
|
default:
|
g_assert_not_reached ();
|
}
|
|
if (!mono_fdhandle_lookup_and_ref(fd, (MonoFDHandle**) &filehandle)) {
|
gpointer handle;
|
|
handle = _wapi_stdhandle_create (fd, name);
|
if (handle == INVALID_HANDLE_VALUE) {
|
mono_w32error_set_last (ERROR_NO_MORE_FILES);
|
return INVALID_HANDLE_VALUE;
|
}
|
}
|
|
return GINT_TO_POINTER (fd);
|
}
|
|
gboolean
|
mono_w32file_read (gpointer handle, gpointer buffer, guint32 numbytes, guint32 *bytesread)
|
{
|
FileHandle *filehandle;
|
gboolean ret;
|
|
if (!mono_fdhandle_lookup_and_ref(GPOINTER_TO_INT(handle), (MonoFDHandle**) &filehandle)) {
|
mono_w32error_set_last (ERROR_INVALID_HANDLE);
|
return FALSE;
|
}
|
|
switch (((MonoFDHandle*) filehandle)->type) {
|
case MONO_FDTYPE_FILE:
|
ret = file_read(filehandle, buffer, numbytes, bytesread);
|
break;
|
case MONO_FDTYPE_CONSOLE:
|
ret = console_read(filehandle, buffer, numbytes, bytesread);
|
break;
|
case MONO_FDTYPE_PIPE:
|
ret = pipe_read(filehandle, buffer, numbytes, bytesread);
|
break;
|
default:
|
mono_w32error_set_last (ERROR_INVALID_HANDLE);
|
mono_fdhandle_unref ((MonoFDHandle*) filehandle);
|
return FALSE;
|
}
|
|
mono_fdhandle_unref ((MonoFDHandle*) filehandle);
|
return ret;
|
}
|
|
gboolean
|
mono_w32file_write (gpointer handle, gconstpointer buffer, guint32 numbytes, guint32 *byteswritten)
|
{
|
FileHandle *filehandle;
|
gboolean ret;
|
|
if (!mono_fdhandle_lookup_and_ref(GPOINTER_TO_INT(handle), (MonoFDHandle**) &filehandle)) {
|
mono_w32error_set_last (ERROR_INVALID_HANDLE);
|
return FALSE;
|
}
|
|
switch (((MonoFDHandle*) filehandle)->type) {
|
case MONO_FDTYPE_FILE:
|
ret = file_write(filehandle, buffer, numbytes, byteswritten);
|
break;
|
case MONO_FDTYPE_CONSOLE:
|
ret = console_write(filehandle, buffer, numbytes, byteswritten);
|
break;
|
case MONO_FDTYPE_PIPE:
|
ret = pipe_write(filehandle, buffer, numbytes, byteswritten);
|
break;
|
default:
|
mono_w32error_set_last (ERROR_INVALID_HANDLE);
|
mono_fdhandle_unref ((MonoFDHandle*) filehandle);
|
return FALSE;
|
}
|
|
mono_fdhandle_unref ((MonoFDHandle*) filehandle);
|
return ret;
|
}
|
|
gboolean
|
mono_w32file_flush (gpointer handle)
|
{
|
FileHandle *filehandle;
|
gboolean ret;
|
|
if (!mono_fdhandle_lookup_and_ref(GPOINTER_TO_INT(handle), (MonoFDHandle**) &filehandle)) {
|
mono_w32error_set_last (ERROR_INVALID_HANDLE);
|
return FALSE;
|
}
|
|
switch (((MonoFDHandle*) filehandle)->type) {
|
case MONO_FDTYPE_FILE:
|
ret = file_flush(filehandle);
|
break;
|
default:
|
mono_w32error_set_last (ERROR_INVALID_HANDLE);
|
mono_fdhandle_unref ((MonoFDHandle*) filehandle);
|
return FALSE;
|
}
|
|
mono_fdhandle_unref ((MonoFDHandle*) filehandle);
|
return ret;
|
}
|
|
gboolean
|
mono_w32file_truncate (gpointer handle)
|
{
|
FileHandle *filehandle;
|
gboolean ret;
|
|
if (!mono_fdhandle_lookup_and_ref(GPOINTER_TO_INT(handle), (MonoFDHandle**) &filehandle)) {
|
mono_w32error_set_last (ERROR_INVALID_HANDLE);
|
return FALSE;
|
}
|
|
switch (((MonoFDHandle*) filehandle)->type) {
|
case MONO_FDTYPE_FILE:
|
ret = file_setendoffile(filehandle);
|
break;
|
default:
|
mono_w32error_set_last (ERROR_INVALID_HANDLE);
|
mono_fdhandle_unref ((MonoFDHandle*) filehandle);
|
return FALSE;
|
}
|
|
mono_fdhandle_unref ((MonoFDHandle*) filehandle);
|
return ret;
|
}
|
|
guint32
|
mono_w32file_seek (gpointer handle, gint32 movedistance, gint32 *highmovedistance, guint32 method)
|
{
|
FileHandle *filehandle;
|
guint32 ret;
|
|
if (!mono_fdhandle_lookup_and_ref(GPOINTER_TO_INT(handle), (MonoFDHandle**) &filehandle)) {
|
mono_w32error_set_last (ERROR_INVALID_HANDLE);
|
return INVALID_SET_FILE_POINTER;
|
}
|
|
switch (((MonoFDHandle*) filehandle)->type) {
|
case MONO_FDTYPE_FILE:
|
ret = file_seek(filehandle, movedistance, highmovedistance, method);
|
break;
|
default:
|
mono_w32error_set_last (ERROR_INVALID_HANDLE);
|
mono_fdhandle_unref ((MonoFDHandle*) filehandle);
|
return INVALID_SET_FILE_POINTER;
|
}
|
|
mono_fdhandle_unref ((MonoFDHandle*) filehandle);
|
return ret;
|
}
|
|
gint
|
mono_w32file_get_type(gpointer handle)
|
{
|
FileHandle *filehandle;
|
gint ret;
|
|
if (!mono_fdhandle_lookup_and_ref(GPOINTER_TO_INT(handle), (MonoFDHandle**) &filehandle)) {
|
mono_w32error_set_last (ERROR_INVALID_HANDLE);
|
return FILE_TYPE_UNKNOWN;
|
}
|
|
switch (((MonoFDHandle*) filehandle)->type) {
|
case MONO_FDTYPE_FILE:
|
ret = FILE_TYPE_DISK;
|
break;
|
case MONO_FDTYPE_CONSOLE:
|
ret = FILE_TYPE_CHAR;
|
break;
|
case MONO_FDTYPE_PIPE:
|
ret = FILE_TYPE_PIPE;
|
break;
|
default:
|
mono_w32error_set_last (ERROR_INVALID_HANDLE);
|
mono_fdhandle_unref ((MonoFDHandle*) filehandle);
|
return FILE_TYPE_UNKNOWN;
|
}
|
|
mono_fdhandle_unref ((MonoFDHandle*) filehandle);
|
return ret;
|
}
|
|
static guint32
|
GetFileSize(gpointer handle, guint32 *highsize)
|
{
|
FileHandle *filehandle;
|
guint32 ret;
|
|
if (!mono_fdhandle_lookup_and_ref(GPOINTER_TO_INT(handle), (MonoFDHandle**) &filehandle)) {
|
mono_w32error_set_last (ERROR_INVALID_HANDLE);
|
return INVALID_FILE_SIZE;
|
}
|
|
switch (((MonoFDHandle*) filehandle)->type) {
|
case MONO_FDTYPE_FILE:
|
ret = file_getfilesize(filehandle, highsize);
|
break;
|
default:
|
mono_w32error_set_last (ERROR_INVALID_HANDLE);
|
mono_fdhandle_unref ((MonoFDHandle*) filehandle);
|
return INVALID_FILE_SIZE;
|
}
|
|
mono_fdhandle_unref ((MonoFDHandle*) filehandle);
|
return ret;
|
}
|
|
gboolean
|
mono_w32file_get_times(gpointer handle, FILETIME *create_time, FILETIME *access_time, FILETIME *write_time)
|
{
|
FileHandle *filehandle;
|
gboolean ret;
|
|
if (!mono_fdhandle_lookup_and_ref(GPOINTER_TO_INT(handle), (MonoFDHandle**) &filehandle)) {
|
mono_w32error_set_last (ERROR_INVALID_HANDLE);
|
return FALSE;
|
}
|
|
switch (((MonoFDHandle*) filehandle)->type) {
|
case MONO_FDTYPE_FILE:
|
ret = file_getfiletime(filehandle, create_time, access_time, write_time);
|
break;
|
default:
|
mono_w32error_set_last (ERROR_INVALID_HANDLE);
|
mono_fdhandle_unref ((MonoFDHandle*) filehandle);
|
return FALSE;
|
}
|
|
mono_fdhandle_unref ((MonoFDHandle*) filehandle);
|
return ret;
|
}
|
|
gboolean
|
mono_w32file_set_times(gpointer handle, const FILETIME *create_time, const FILETIME *access_time, const FILETIME *write_time)
|
{
|
FileHandle *filehandle;
|
gboolean ret;
|
|
if (!mono_fdhandle_lookup_and_ref(GPOINTER_TO_INT(handle), (MonoFDHandle**) &filehandle)) {
|
mono_w32error_set_last (ERROR_INVALID_HANDLE);
|
return FALSE;
|
}
|
|
switch (((MonoFDHandle*) filehandle)->type) {
|
case MONO_FDTYPE_FILE:
|
ret = file_setfiletime(filehandle, create_time, access_time, write_time);
|
break;
|
default:
|
mono_w32error_set_last (ERROR_INVALID_HANDLE);
|
mono_fdhandle_unref ((MonoFDHandle*) filehandle);
|
return FALSE;
|
}
|
|
mono_fdhandle_unref ((MonoFDHandle*) filehandle);
|
return ret;
|
}
|
|
/* A tick is a 100-nanosecond interval. File time epoch is Midnight,
|
* January 1 1601 GMT
|
*/
|
|
#define TICKS_PER_MILLISECOND 10000L
|
#define TICKS_PER_SECOND 10000000L
|
#define TICKS_PER_MINUTE 600000000L
|
#define TICKS_PER_HOUR 36000000000LL
|
#define TICKS_PER_DAY 864000000000LL
|
|
#define isleap(y) ((y) % 4 == 0 && ((y) % 100 != 0 || (y) % 400 == 0))
|
|
static const guint16 mon_yday[2][13]={
|
{0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365},
|
{0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366},
|
};
|
|
gboolean
|
mono_w32file_filetime_to_systemtime(const FILETIME *file_time, SYSTEMTIME *system_time)
|
{
|
gint64 file_ticks, totaldays, rem, y;
|
const guint16 *ip;
|
|
if(system_time==NULL) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: system_time NULL", __func__);
|
|
mono_w32error_set_last (ERROR_INVALID_PARAMETER);
|
return(FALSE);
|
}
|
|
file_ticks=((gint64)file_time->dwHighDateTime << 32) +
|
file_time->dwLowDateTime;
|
|
/* Really compares if file_ticks>=0x8000000000000000
|
* (LLONG_MAX+1) but we're working with a signed value for the
|
* year and day calculation to work later
|
*/
|
if(file_ticks<0) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: file_time too big", __func__);
|
|
mono_w32error_set_last (ERROR_INVALID_PARAMETER);
|
return(FALSE);
|
}
|
|
totaldays=(file_ticks / TICKS_PER_DAY);
|
rem = file_ticks % TICKS_PER_DAY;
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: totaldays: %" G_GINT64_FORMAT " rem: %" G_GINT64_FORMAT, __func__,
|
totaldays, rem);
|
|
system_time->wHour=rem/TICKS_PER_HOUR;
|
rem %= TICKS_PER_HOUR;
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: Hour: %d rem: %" G_GINT64_FORMAT, __func__,
|
system_time->wHour, rem);
|
|
system_time->wMinute = rem / TICKS_PER_MINUTE;
|
rem %= TICKS_PER_MINUTE;
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: Minute: %d rem: %" G_GINT64_FORMAT, __func__,
|
system_time->wMinute, rem);
|
|
system_time->wSecond = rem / TICKS_PER_SECOND;
|
rem %= TICKS_PER_SECOND;
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: Second: %d rem: %" G_GINT64_FORMAT, __func__,
|
system_time->wSecond, rem);
|
|
system_time->wMilliseconds = rem / TICKS_PER_MILLISECOND;
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: Milliseconds: %d", __func__,
|
system_time->wMilliseconds);
|
|
/* January 1, 1601 was a Monday, according to Emacs calendar */
|
system_time->wDayOfWeek = ((1 + totaldays) % 7) + 1;
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: Day of week: %d", __func__, system_time->wDayOfWeek);
|
|
/* This algorithm to find year and month given days from epoch
|
* from glibc
|
*/
|
y=1601;
|
|
#define DIV(a, b) ((a) / (b) - ((a) % (b) < 0))
|
#define LEAPS_THRU_END_OF(y) (DIV(y, 4) - DIV (y, 100) + DIV (y, 400))
|
|
while(totaldays < 0 || totaldays >= (isleap(y)?366:365)) {
|
/* Guess a corrected year, assuming 365 days per year */
|
gint64 yg = y + totaldays / 365 - (totaldays % 365 < 0);
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: totaldays: %" G_GINT64_FORMAT " yg: %" G_GINT64_FORMAT " y: %" G_GINT64_FORMAT, __func__,
|
totaldays, yg, y);
|
g_message("%s: LEAPS(yg): %li LEAPS(y): %li", __func__,
|
LEAPS_THRU_END_OF(yg-1), LEAPS_THRU_END_OF(y-1));
|
|
/* Adjust days and y to match the guessed year. */
|
totaldays -= ((yg - y) * 365
|
+ LEAPS_THRU_END_OF (yg - 1)
|
- LEAPS_THRU_END_OF (y - 1));
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: totaldays: %" G_GINT64_FORMAT,
|
__func__, totaldays);
|
y = yg;
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: y: %" G_GINT64_FORMAT, __func__, y);
|
}
|
|
system_time->wYear = y;
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: Year: %d", __func__, system_time->wYear);
|
|
ip = mon_yday[isleap(y)];
|
|
for(y=11; totaldays < ip[y]; --y) {
|
continue;
|
}
|
totaldays-=ip[y];
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: totaldays: %" G_GINT64_FORMAT, __func__, totaldays);
|
|
system_time->wMonth = y + 1;
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: Month: %d", __func__, system_time->wMonth);
|
|
system_time->wDay = totaldays + 1;
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: Day: %d", __func__, system_time->wDay);
|
|
return(TRUE);
|
}
|
|
static void
|
findhandle_destroy (gpointer data)
|
{
|
FindHandle *findhandle;
|
|
findhandle = (FindHandle*) data;
|
g_assert (findhandle);
|
|
mono_coop_mutex_destroy (&findhandle->mutex);
|
|
if (findhandle->namelist)
|
g_strfreev (findhandle->namelist);
|
if (findhandle->dir_part)
|
g_free (findhandle->dir_part);
|
|
g_free (findhandle);
|
}
|
|
static FindHandle*
|
findhandle_create (void)
|
{
|
FindHandle* findhandle;
|
|
findhandle = g_new0 (FindHandle, 1);
|
mono_refcount_init (findhandle, findhandle_destroy);
|
|
mono_coop_mutex_init (&findhandle->mutex);
|
|
return findhandle;
|
}
|
|
static void
|
findhandle_insert (FindHandle *findhandle)
|
{
|
mono_coop_mutex_lock (&finds_mutex);
|
|
if (g_hash_table_lookup_extended (finds, (gpointer) findhandle, NULL, NULL))
|
g_error("%s: duplicate Find handle %p", __func__, (gpointer) findhandle);
|
|
g_hash_table_insert (finds, (gpointer) findhandle, findhandle);
|
|
mono_coop_mutex_unlock (&finds_mutex);
|
}
|
|
static gboolean
|
findhandle_lookup_and_ref (gpointer handle, FindHandle **findhandle)
|
{
|
mono_coop_mutex_lock (&finds_mutex);
|
|
if (!g_hash_table_lookup_extended (finds, handle, NULL, (gpointer*) findhandle)) {
|
mono_coop_mutex_unlock (&finds_mutex);
|
return FALSE;
|
}
|
|
mono_refcount_inc (*findhandle);
|
|
mono_coop_mutex_unlock (&finds_mutex);
|
|
return TRUE;
|
}
|
|
static void
|
findhandle_unref (FindHandle *findhandle)
|
{
|
mono_refcount_dec (findhandle);
|
}
|
|
static gboolean
|
findhandle_close (gpointer handle)
|
{
|
FindHandle *findhandle;
|
gboolean removed;
|
|
mono_coop_mutex_lock (&finds_mutex);
|
|
if (!g_hash_table_lookup_extended (finds, handle, NULL, (gpointer*) &findhandle)) {
|
mono_coop_mutex_unlock (&finds_mutex);
|
|
return FALSE;
|
}
|
|
removed = g_hash_table_remove (finds, (gpointer) findhandle);
|
g_assert (removed);
|
|
mono_coop_mutex_unlock (&finds_mutex);
|
|
return TRUE;
|
}
|
|
gpointer
|
mono_w32file_find_first (const gunichar2 *pattern, WIN32_FIND_DATA *find_data)
|
{
|
FindHandle *findhandle;
|
gchar *utf8_pattern = NULL, *dir_part, *entry_part, **namelist;
|
gint result;
|
|
if (pattern == NULL) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: pattern is NULL", __func__);
|
|
mono_w32error_set_last (ERROR_PATH_NOT_FOUND);
|
return(INVALID_HANDLE_VALUE);
|
}
|
|
utf8_pattern = mono_unicode_to_external (pattern);
|
if (utf8_pattern == NULL) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: unicode conversion returned NULL", __func__);
|
|
mono_w32error_set_last (ERROR_INVALID_NAME);
|
return(INVALID_HANDLE_VALUE);
|
}
|
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: looking for [%s]", __func__, utf8_pattern);
|
|
/* Figure out which bit of the pattern is the directory */
|
dir_part = _wapi_dirname (utf8_pattern);
|
entry_part = _wapi_basename (utf8_pattern);
|
|
#if 0
|
/* Don't do this check for now, it breaks if directories
|
* really do have metachars in their names (see bug 58116).
|
* FIXME: Figure out a better solution to keep some checks...
|
*/
|
if (strchr (dir_part, '*') || strchr (dir_part, '?')) {
|
mono_w32error_set_last (ERROR_INVALID_NAME);
|
g_free (dir_part);
|
g_free (entry_part);
|
g_free (utf8_pattern);
|
return(INVALID_HANDLE_VALUE);
|
}
|
#endif
|
|
/* The pattern can specify a directory or a set of files.
|
*
|
* The pattern can have wildcard characters ? and *, but only
|
* in the section after the last directory delimiter. (Return
|
* ERROR_INVALID_NAME if there are wildcards in earlier path
|
* sections.) "*" has the usual 0-or-more chars meaning. "?"
|
* means "match one character", "??" seems to mean "match one
|
* or two characters", "???" seems to mean "match one, two or
|
* three characters", etc. Windows will also try and match
|
* the mangled "short name" of files, so 8 character patterns
|
* with wildcards will show some surprising results.
|
*
|
* All the written documentation I can find says that '?'
|
* should only match one character, and doesn't mention '??',
|
* '???' etc. I'm going to assume that the strict behaviour
|
* (ie '???' means three and only three characters) is the
|
* correct one, because that lets me use fnmatch(3) rather
|
* than mess around with regexes.
|
*/
|
|
namelist = NULL;
|
result = _wapi_io_scandir (dir_part, entry_part,
|
&namelist);
|
|
if (result == 0) {
|
/* No files, which windows seems to call
|
* FILE_NOT_FOUND
|
*/
|
mono_w32error_set_last (ERROR_FILE_NOT_FOUND);
|
g_free (utf8_pattern);
|
g_free (entry_part);
|
g_free (dir_part);
|
g_strfreev (namelist);
|
return (INVALID_HANDLE_VALUE);
|
}
|
|
if (result < 0) {
|
_wapi_set_last_path_error_from_errno (dir_part, NULL);
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: scandir error: %s", __func__, g_strerror (errno));
|
g_free (utf8_pattern);
|
g_free (entry_part);
|
g_free (dir_part);
|
g_strfreev (namelist);
|
return (INVALID_HANDLE_VALUE);
|
}
|
|
g_free (utf8_pattern);
|
g_free (entry_part);
|
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: Got %d matches", __func__, result);
|
|
findhandle = findhandle_create ();
|
findhandle->namelist = namelist;
|
findhandle->dir_part = dir_part;
|
findhandle->num = result;
|
findhandle->count = 0;
|
|
findhandle_insert (findhandle);
|
|
if (!mono_w32file_find_next ((gpointer) findhandle, find_data)) {
|
mono_w32file_find_close ((gpointer) findhandle);
|
mono_w32error_set_last (ERROR_NO_MORE_FILES);
|
return INVALID_HANDLE_VALUE;
|
}
|
|
return (gpointer) findhandle;
|
}
|
|
gboolean
|
mono_w32file_find_next (gpointer handle, WIN32_FIND_DATA *find_data)
|
{
|
FindHandle *findhandle;
|
struct stat buf, linkbuf;
|
gint result;
|
gchar *filename;
|
gchar *utf8_filename, *utf8_basename;
|
gunichar2 *utf16_basename;
|
time_t create_time;
|
glong bytes;
|
gboolean ret = FALSE;
|
|
if (!findhandle_lookup_and_ref (handle, &findhandle)) {
|
mono_w32error_set_last (ERROR_INVALID_HANDLE);
|
return FALSE;
|
}
|
|
mono_coop_mutex_lock (&findhandle->mutex);
|
|
retry:
|
if (findhandle->count >= findhandle->num) {
|
mono_w32error_set_last (ERROR_NO_MORE_FILES);
|
goto cleanup;
|
}
|
|
/* stat next match */
|
|
filename = g_build_filename (findhandle->dir_part, findhandle->namelist[findhandle->count ++], NULL);
|
|
result = _wapi_stat (filename, &buf);
|
if (result == -1 && errno == ENOENT) {
|
/* Might be a dangling symlink */
|
result = _wapi_lstat (filename, &buf);
|
}
|
|
if (result != 0) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: stat failed: %s", __func__, filename);
|
|
g_free (filename);
|
goto retry;
|
}
|
|
result = _wapi_lstat (filename, &linkbuf);
|
if (result != 0) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: lstat failed: %s", __func__, filename);
|
|
g_free (filename);
|
goto retry;
|
}
|
|
utf8_filename = mono_utf8_from_external (filename);
|
if (utf8_filename == NULL) {
|
/* We couldn't turn this filename into utf8 (eg the
|
* encoding of the name wasn't convertible), so just
|
* ignore it.
|
*/
|
g_warning ("%s: Bad encoding for '%s'\nConsider using MONO_EXTERNAL_ENCODINGS\n", __func__, filename);
|
|
g_free (filename);
|
goto retry;
|
}
|
g_free (filename);
|
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: Found [%s]", __func__, utf8_filename);
|
|
/* fill data block */
|
|
if (buf.st_mtime < buf.st_ctime)
|
create_time = buf.st_mtime;
|
else
|
create_time = buf.st_ctime;
|
|
find_data->dwFileAttributes = _wapi_stat_to_file_attributes (utf8_filename, &buf, &linkbuf);
|
|
time_t_to_filetime (create_time, &find_data->ftCreationTime);
|
time_t_to_filetime (buf.st_atime, &find_data->ftLastAccessTime);
|
time_t_to_filetime (buf.st_mtime, &find_data->ftLastWriteTime);
|
|
if (find_data->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
|
find_data->nFileSizeHigh = 0;
|
find_data->nFileSizeLow = 0;
|
} else {
|
find_data->nFileSizeHigh = buf.st_size >> 32;
|
find_data->nFileSizeLow = buf.st_size & 0xFFFFFFFF;
|
}
|
|
find_data->dwReserved0 = 0;
|
find_data->dwReserved1 = 0;
|
|
utf8_basename = _wapi_basename (utf8_filename);
|
utf16_basename = g_utf8_to_utf16 (utf8_basename, -1, NULL, &bytes,
|
NULL);
|
if(utf16_basename==NULL) {
|
g_free (utf8_basename);
|
g_free (utf8_filename);
|
goto retry;
|
}
|
ret = TRUE;
|
|
/* utf16 is 2 * utf8 */
|
bytes *= 2;
|
|
memset (find_data->cFileName, '\0', (MAX_PATH*2));
|
|
/* Truncating a utf16 string like this might leave the last
|
* gchar incomplete
|
*/
|
memcpy (find_data->cFileName, utf16_basename,
|
bytes<(MAX_PATH*2)-2?bytes:(MAX_PATH*2)-2);
|
|
find_data->cAlternateFileName [0] = 0; /* not used */
|
|
g_free (utf8_basename);
|
g_free (utf8_filename);
|
g_free (utf16_basename);
|
|
cleanup:
|
mono_coop_mutex_unlock (&findhandle->mutex);
|
|
findhandle_unref (findhandle);
|
|
return(ret);
|
}
|
|
gboolean
|
mono_w32file_find_close (gpointer handle)
|
{
|
if (!findhandle_close (handle)) {
|
mono_w32error_set_last (ERROR_INVALID_HANDLE);
|
return FALSE;
|
}
|
|
return TRUE;
|
}
|
|
gboolean
|
mono_w32file_create_directory (const gunichar2 *name)
|
{
|
gchar *utf8_name;
|
gint result;
|
|
if (name == NULL) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: name is NULL", __func__);
|
|
mono_w32error_set_last (ERROR_INVALID_NAME);
|
return(FALSE);
|
}
|
|
utf8_name = mono_unicode_to_external (name);
|
if (utf8_name == NULL) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: unicode conversion returned NULL", __func__);
|
|
mono_w32error_set_last (ERROR_INVALID_NAME);
|
return FALSE;
|
}
|
|
result = _wapi_mkdir (utf8_name, 0777);
|
|
if (result == 0) {
|
g_free (utf8_name);
|
return TRUE;
|
}
|
|
_wapi_set_last_path_error_from_errno (NULL, utf8_name);
|
g_free (utf8_name);
|
return FALSE;
|
}
|
|
gboolean
|
mono_w32file_remove_directory (const gunichar2 *name)
|
{
|
gchar *utf8_name;
|
gint result;
|
|
if (name == NULL) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: name is NULL", __func__);
|
|
mono_w32error_set_last (ERROR_INVALID_NAME);
|
return(FALSE);
|
}
|
|
utf8_name = mono_unicode_to_external (name);
|
if (utf8_name == NULL) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: unicode conversion returned NULL", __func__);
|
|
mono_w32error_set_last (ERROR_INVALID_NAME);
|
return FALSE;
|
}
|
|
result = _wapi_rmdir (utf8_name);
|
if (result == -1) {
|
_wapi_set_last_path_error_from_errno (NULL, utf8_name);
|
g_free (utf8_name);
|
|
return(FALSE);
|
}
|
g_free (utf8_name);
|
|
return(TRUE);
|
}
|
|
guint32
|
mono_w32file_get_attributes (const gunichar2 *name)
|
{
|
gchar *utf8_name;
|
struct stat buf, linkbuf;
|
gint result;
|
guint32 ret;
|
|
if (name == NULL) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: name is NULL", __func__);
|
|
mono_w32error_set_last (ERROR_INVALID_NAME);
|
return(FALSE);
|
}
|
|
utf8_name = mono_unicode_to_external (name);
|
if (utf8_name == NULL) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: unicode conversion returned NULL", __func__);
|
|
mono_w32error_set_last (ERROR_INVALID_PARAMETER);
|
return (INVALID_FILE_ATTRIBUTES);
|
}
|
|
result = _wapi_stat (utf8_name, &buf);
|
if (result == -1 && (errno == ENOENT || errno == ELOOP)) {
|
/* Might be a dangling symlink... */
|
result = _wapi_lstat (utf8_name, &buf);
|
}
|
|
if (result != 0) {
|
_wapi_set_last_path_error_from_errno (NULL, utf8_name);
|
g_free (utf8_name);
|
return (INVALID_FILE_ATTRIBUTES);
|
}
|
|
result = _wapi_lstat (utf8_name, &linkbuf);
|
if (result != 0) {
|
_wapi_set_last_path_error_from_errno (NULL, utf8_name);
|
g_free (utf8_name);
|
return (INVALID_FILE_ATTRIBUTES);
|
}
|
|
ret = _wapi_stat_to_file_attributes (utf8_name, &buf, &linkbuf);
|
|
g_free (utf8_name);
|
|
return(ret);
|
}
|
|
gboolean
|
mono_w32file_get_attributes_ex (const gunichar2 *name, MonoIOStat *stat)
|
{
|
gchar *utf8_name;
|
|
struct stat buf, linkbuf;
|
gint result;
|
|
if (name == NULL) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: name is NULL", __func__);
|
|
mono_w32error_set_last (ERROR_INVALID_NAME);
|
return(FALSE);
|
}
|
|
utf8_name = mono_unicode_to_external (name);
|
if (utf8_name == NULL) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: unicode conversion returned NULL", __func__);
|
|
mono_w32error_set_last (ERROR_INVALID_PARAMETER);
|
return FALSE;
|
}
|
|
result = _wapi_stat (utf8_name, &buf);
|
if (result == -1 && errno == ENOENT) {
|
/* Might be a dangling symlink... */
|
result = _wapi_lstat (utf8_name, &buf);
|
}
|
|
if (result != 0) {
|
_wapi_set_last_path_error_from_errno (NULL, utf8_name);
|
g_free (utf8_name);
|
return FALSE;
|
}
|
|
result = _wapi_lstat (utf8_name, &linkbuf);
|
if (result != 0) {
|
_wapi_set_last_path_error_from_errno (NULL, utf8_name);
|
g_free (utf8_name);
|
return(FALSE);
|
}
|
|
/* fill stat block */
|
|
stat->attributes = _wapi_stat_to_file_attributes (utf8_name, &buf, &linkbuf);
|
stat->creation_time = (((guint64) (buf.st_mtime < buf.st_ctime ? buf.st_mtime : buf.st_ctime)) * 10 * 1000 * 1000) + 116444736000000000ULL;
|
stat->last_access_time = (((guint64) (buf.st_atime)) * 10 * 1000 * 1000) + 116444736000000000ULL;
|
stat->last_write_time = (((guint64) (buf.st_mtime)) * 10 * 1000 * 1000) + 116444736000000000ULL;
|
stat->length = (stat->attributes & FILE_ATTRIBUTE_DIRECTORY) ? 0 : buf.st_size;
|
|
g_free (utf8_name);
|
return TRUE;
|
}
|
|
gboolean
|
mono_w32file_set_attributes (const gunichar2 *name, guint32 attrs)
|
{
|
/* FIXME: think of something clever to do on unix */
|
gchar *utf8_name;
|
struct stat buf;
|
gint result;
|
|
/*
|
* Currently we only handle one *internal* case, with a value that is
|
* not standard: 0x80000000, which means `set executable bit'
|
*/
|
|
if (name == NULL) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: name is NULL", __func__);
|
|
mono_w32error_set_last (ERROR_INVALID_NAME);
|
return(FALSE);
|
}
|
|
utf8_name = mono_unicode_to_external (name);
|
if (utf8_name == NULL) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: unicode conversion returned NULL", __func__);
|
|
mono_w32error_set_last (ERROR_INVALID_NAME);
|
return FALSE;
|
}
|
|
result = _wapi_stat (utf8_name, &buf);
|
if (result == -1 && errno == ENOENT) {
|
/* Might be a dangling symlink... */
|
result = _wapi_lstat (utf8_name, &buf);
|
}
|
|
if (result != 0) {
|
_wapi_set_last_path_error_from_errno (NULL, utf8_name);
|
g_free (utf8_name);
|
return FALSE;
|
}
|
|
/* Contrary to the documentation, ms allows NORMAL to be
|
* specified along with other attributes, so dont bother to
|
* catch that case here.
|
*/
|
if (attrs & FILE_ATTRIBUTE_READONLY) {
|
result = _wapi_chmod (utf8_name, buf.st_mode & ~(S_IWUSR | S_IWOTH | S_IWGRP));
|
} else {
|
result = _wapi_chmod (utf8_name, buf.st_mode | S_IWUSR);
|
}
|
|
/* Ignore the other attributes for now */
|
|
if (attrs & 0x80000000){
|
mode_t exec_mask = 0;
|
|
if ((buf.st_mode & S_IRUSR) != 0)
|
exec_mask |= S_IXUSR;
|
|
if ((buf.st_mode & S_IRGRP) != 0)
|
exec_mask |= S_IXGRP;
|
|
if ((buf.st_mode & S_IROTH) != 0)
|
exec_mask |= S_IXOTH;
|
|
MONO_ENTER_GC_SAFE;
|
result = chmod (utf8_name, buf.st_mode | exec_mask);
|
MONO_EXIT_GC_SAFE;
|
}
|
/* Don't bother to reset executable (might need to change this
|
* policy)
|
*/
|
|
g_free (utf8_name);
|
|
return(TRUE);
|
}
|
|
guint32
|
mono_w32file_get_cwd (guint32 length, gunichar2 *buffer)
|
{
|
gunichar2 *utf16_path;
|
glong count;
|
gsize bytes;
|
|
if (getcwd ((gchar*)buffer, length) == NULL) {
|
if (errno == ERANGE) { /*buffer length is not big enough */
|
gchar *path = g_get_current_dir (); /*FIXME g_get_current_dir doesn't work with broken paths and calling it just to know the path length is silly*/
|
if (path == NULL)
|
return 0;
|
utf16_path = mono_unicode_from_external (path, &bytes);
|
g_free (utf16_path);
|
g_free (path);
|
return (bytes/2)+1;
|
}
|
_wapi_set_last_error_from_errno ();
|
return 0;
|
}
|
|
utf16_path = mono_unicode_from_external ((gchar*)buffer, &bytes);
|
count = (bytes/2)+1;
|
g_assert (count <= length); /*getcwd must have failed before with ERANGE*/
|
|
/* Add the terminator */
|
memset (buffer, '\0', bytes+2);
|
memcpy (buffer, utf16_path, bytes);
|
|
g_free (utf16_path);
|
|
return count;
|
}
|
|
gboolean
|
mono_w32file_set_cwd (const gunichar2 *path)
|
{
|
gchar *utf8_path;
|
gboolean result;
|
|
if (path == NULL) {
|
mono_w32error_set_last (ERROR_INVALID_PARAMETER);
|
return(FALSE);
|
}
|
|
utf8_path = mono_unicode_to_external (path);
|
if (_wapi_chdir (utf8_path) != 0) {
|
_wapi_set_last_error_from_errno ();
|
result = FALSE;
|
}
|
else
|
result = TRUE;
|
|
g_free (utf8_path);
|
return result;
|
}
|
|
gboolean
|
mono_w32file_create_pipe (gpointer *readpipe, gpointer *writepipe, guint32 size)
|
{
|
FileHandle *read_filehandle, *write_filehandle;
|
gint filedes[2];
|
gint ret;
|
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: Creating pipe", __func__);
|
|
MONO_ENTER_GC_SAFE;
|
ret=pipe (filedes);
|
MONO_EXIT_GC_SAFE;
|
if (ret==-1) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: Error creating pipe: (%d) %s",
|
__func__, errno, g_strerror (errno));
|
|
_wapi_set_last_error_from_errno ();
|
return FALSE;
|
}
|
|
/* filedes[0] is open for reading, filedes[1] for writing */
|
|
read_filehandle = file_data_create (MONO_FDTYPE_PIPE, filedes[0]);
|
read_filehandle->fileaccess = GENERIC_READ;
|
|
write_filehandle = file_data_create (MONO_FDTYPE_PIPE, filedes[1]);
|
write_filehandle->fileaccess = GENERIC_WRITE;
|
|
mono_fdhandle_insert ((MonoFDHandle*) read_filehandle);
|
mono_fdhandle_insert ((MonoFDHandle*) write_filehandle);
|
|
*readpipe = GINT_TO_POINTER(((MonoFDHandle*) read_filehandle)->fd);
|
*writepipe = GINT_TO_POINTER(((MonoFDHandle*) write_filehandle)->fd);
|
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: Returning pipe: read handle %p, write handle %p",
|
__func__, GINT_TO_POINTER(((MonoFDHandle*) read_filehandle)->fd), GINT_TO_POINTER(((MonoFDHandle*) write_filehandle)->fd));
|
|
return(TRUE);
|
}
|
|
#ifdef HAVE_GETFSSTAT
|
/* Darwin has getfsstat */
|
gint32
|
mono_w32file_get_logical_drive (guint32 len, gunichar2 *buf)
|
{
|
struct statfs *stats;
|
gint size, n, i;
|
gunichar2 *dir;
|
glong length, total = 0;
|
gint syscall_res;
|
|
MONO_ENTER_GC_SAFE;
|
n = getfsstat (NULL, 0, MNT_NOWAIT);
|
MONO_EXIT_GC_SAFE;
|
if (n == -1)
|
return 0;
|
size = n * sizeof (struct statfs);
|
stats = (struct statfs *) g_malloc (size);
|
if (stats == NULL)
|
return 0;
|
MONO_ENTER_GC_SAFE;
|
syscall_res = getfsstat (stats, size, MNT_NOWAIT);
|
MONO_EXIT_GC_SAFE;
|
if (syscall_res == -1){
|
g_free (stats);
|
return 0;
|
}
|
for (i = 0; i < n; i++){
|
dir = g_utf8_to_utf16 (stats [i].f_mntonname, -1, NULL, &length, NULL);
|
if (total + length < len){
|
memcpy (buf + total, dir, sizeof (gunichar2) * length);
|
buf [total+length] = 0;
|
}
|
g_free (dir);
|
total += length + 1;
|
}
|
if (total < len)
|
buf [total] = 0;
|
total++;
|
g_free (stats);
|
return total;
|
}
|
#else
|
/* In-place octal sequence replacement */
|
static void
|
unescape_octal (gchar *str)
|
{
|
gchar *rptr;
|
gchar *wptr;
|
|
if (str == NULL)
|
return;
|
|
rptr = wptr = str;
|
while (*rptr != '\0') {
|
if (*rptr == '\\') {
|
gchar c;
|
rptr++;
|
c = (*(rptr++) - '0') << 6;
|
c += (*(rptr++) - '0') << 3;
|
c += *(rptr++) - '0';
|
*wptr++ = c;
|
} else if (wptr != rptr) {
|
*wptr++ = *rptr++;
|
} else {
|
rptr++; wptr++;
|
}
|
}
|
*wptr = '\0';
|
}
|
static gint32 GetLogicalDriveStrings_Mtab (guint32 len, gunichar2 *buf);
|
|
#if __linux__
|
#define GET_LOGICAL_DRIVE_STRINGS_BUFFER 512
|
#define GET_LOGICAL_DRIVE_STRINGS_MOUNTPOINT_BUFFER 512
|
#define GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER 64
|
|
typedef struct
|
{
|
glong total;
|
guint32 buffer_index;
|
guint32 mountpoint_index;
|
guint32 field_number;
|
guint32 allocated_size;
|
guint32 fsname_index;
|
guint32 fstype_index;
|
gchar mountpoint [GET_LOGICAL_DRIVE_STRINGS_MOUNTPOINT_BUFFER + 1];
|
gchar *mountpoint_allocated;
|
gchar buffer [GET_LOGICAL_DRIVE_STRINGS_BUFFER];
|
gchar fsname [GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER + 1];
|
gchar fstype [GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER + 1];
|
ssize_t nbytes;
|
gchar delimiter;
|
gboolean check_mount_source;
|
} LinuxMountInfoParseState;
|
|
static gboolean GetLogicalDriveStrings_Mounts (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state);
|
static gboolean GetLogicalDriveStrings_MountInfo (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state);
|
static void append_to_mountpoint (LinuxMountInfoParseState *state);
|
static gboolean add_drive_string (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state);
|
|
gint32
|
mono_w32file_get_logical_drive (guint32 len, gunichar2 *buf)
|
{
|
gint fd;
|
gint32 ret = 0;
|
LinuxMountInfoParseState state;
|
gboolean (*parser)(guint32, gunichar2*, LinuxMountInfoParseState*) = NULL;
|
|
memset (buf, 0, len * sizeof (gunichar2));
|
MONO_ENTER_GC_SAFE;
|
fd = open ("/proc/self/mountinfo", O_RDONLY);
|
MONO_EXIT_GC_SAFE;
|
if (fd != -1)
|
parser = GetLogicalDriveStrings_MountInfo;
|
else {
|
MONO_ENTER_GC_SAFE;
|
fd = open ("/proc/mounts", O_RDONLY);
|
MONO_EXIT_GC_SAFE;
|
if (fd != -1)
|
parser = GetLogicalDriveStrings_Mounts;
|
}
|
|
if (!parser) {
|
ret = GetLogicalDriveStrings_Mtab (len, buf);
|
goto done_and_out;
|
}
|
|
memset (&state, 0, sizeof (LinuxMountInfoParseState));
|
state.field_number = 1;
|
state.delimiter = ' ';
|
|
while (1) {
|
MONO_ENTER_GC_SAFE;
|
state.nbytes = read (fd, state.buffer, GET_LOGICAL_DRIVE_STRINGS_BUFFER);
|
MONO_EXIT_GC_SAFE;
|
if (!(state.nbytes > 0))
|
break;
|
state.buffer_index = 0;
|
|
while ((*parser)(len, buf, &state)) {
|
if (state.buffer [state.buffer_index] == '\n') {
|
gboolean quit = add_drive_string (len, buf, &state);
|
state.field_number = 1;
|
state.buffer_index++;
|
if (state.mountpoint_allocated) {
|
g_free (state.mountpoint_allocated);
|
state.mountpoint_allocated = NULL;
|
}
|
if (quit) {
|
ret = state.total;
|
goto done_and_out;
|
}
|
}
|
}
|
};
|
ret = state.total;
|
|
done_and_out:
|
if (fd != -1) {
|
MONO_ENTER_GC_SAFE;
|
close (fd);
|
MONO_EXIT_GC_SAFE;
|
}
|
return ret;
|
}
|
|
static gboolean GetLogicalDriveStrings_Mounts (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state)
|
{
|
gchar *ptr;
|
|
if (state->field_number == 1)
|
state->check_mount_source = TRUE;
|
|
while (state->buffer_index < (guint32)state->nbytes) {
|
if (state->buffer [state->buffer_index] == state->delimiter) {
|
state->field_number++;
|
switch (state->field_number) {
|
case 2:
|
state->mountpoint_index = 0;
|
break;
|
|
case 3:
|
if (state->mountpoint_allocated)
|
state->mountpoint_allocated [state->mountpoint_index] = 0;
|
else
|
state->mountpoint [state->mountpoint_index] = 0;
|
break;
|
|
default:
|
ptr = (gchar*)memchr (state->buffer + state->buffer_index, '\n', GET_LOGICAL_DRIVE_STRINGS_BUFFER - state->buffer_index);
|
if (ptr)
|
state->buffer_index = (ptr - (gchar*)state->buffer) - 1;
|
else
|
state->buffer_index = state->nbytes;
|
return TRUE;
|
}
|
state->buffer_index++;
|
continue;
|
} else if (state->buffer [state->buffer_index] == '\n')
|
return TRUE;
|
|
switch (state->field_number) {
|
case 1:
|
if (state->check_mount_source) {
|
if (state->fsname_index == 0 && state->buffer [state->buffer_index] == '/') {
|
/* We can ignore the rest, it's a device
|
* path */
|
state->check_mount_source = FALSE;
|
state->fsname [state->fsname_index++] = '/';
|
break;
|
}
|
if (state->fsname_index < GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER)
|
state->fsname [state->fsname_index++] = state->buffer [state->buffer_index];
|
}
|
break;
|
|
case 2:
|
append_to_mountpoint (state);
|
break;
|
|
case 3:
|
if (state->fstype_index < GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER)
|
state->fstype [state->fstype_index++] = state->buffer [state->buffer_index];
|
break;
|
}
|
|
state->buffer_index++;
|
}
|
|
return FALSE;
|
}
|
|
static gboolean GetLogicalDriveStrings_MountInfo (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state)
|
{
|
while (state->buffer_index < (guint32)state->nbytes) {
|
if (state->buffer [state->buffer_index] == state->delimiter) {
|
state->field_number++;
|
switch (state->field_number) {
|
case 5:
|
state->mountpoint_index = 0;
|
break;
|
|
case 6:
|
if (state->mountpoint_allocated)
|
state->mountpoint_allocated [state->mountpoint_index] = 0;
|
else
|
state->mountpoint [state->mountpoint_index] = 0;
|
break;
|
|
case 7:
|
state->delimiter = '-';
|
break;
|
|
case 8:
|
state->delimiter = ' ';
|
break;
|
|
case 10:
|
state->check_mount_source = TRUE;
|
break;
|
}
|
state->buffer_index++;
|
continue;
|
} else if (state->buffer [state->buffer_index] == '\n')
|
return TRUE;
|
|
switch (state->field_number) {
|
case 5:
|
append_to_mountpoint (state);
|
break;
|
|
case 9:
|
if (state->fstype_index < GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER)
|
state->fstype [state->fstype_index++] = state->buffer [state->buffer_index];
|
break;
|
|
case 10:
|
if (state->check_mount_source) {
|
if (state->fsname_index == 0 && state->buffer [state->buffer_index] == '/') {
|
/* We can ignore the rest, it's a device
|
* path */
|
state->check_mount_source = FALSE;
|
state->fsname [state->fsname_index++] = '/';
|
break;
|
}
|
if (state->fsname_index < GET_LOGICAL_DRIVE_STRINGS_FSNAME_BUFFER)
|
state->fsname [state->fsname_index++] = state->buffer [state->buffer_index];
|
}
|
break;
|
}
|
|
state->buffer_index++;
|
}
|
|
return FALSE;
|
}
|
|
static void
|
append_to_mountpoint (LinuxMountInfoParseState *state)
|
{
|
gchar ch = state->buffer [state->buffer_index];
|
if (state->mountpoint_allocated) {
|
if (state->mountpoint_index >= state->allocated_size) {
|
guint32 newsize = (state->allocated_size << 1) + 1;
|
gchar *newbuf = (gchar *)g_malloc0 (newsize * sizeof (gchar));
|
|
memcpy (newbuf, state->mountpoint_allocated, state->mountpoint_index);
|
g_free (state->mountpoint_allocated);
|
state->mountpoint_allocated = newbuf;
|
state->allocated_size = newsize;
|
}
|
state->mountpoint_allocated [state->mountpoint_index++] = ch;
|
} else {
|
if (state->mountpoint_index >= GET_LOGICAL_DRIVE_STRINGS_MOUNTPOINT_BUFFER) {
|
state->allocated_size = (state->mountpoint_index << 1) + 1;
|
state->mountpoint_allocated = (gchar *)g_malloc0 (state->allocated_size * sizeof (gchar));
|
memcpy (state->mountpoint_allocated, state->mountpoint, state->mountpoint_index);
|
state->mountpoint_allocated [state->mountpoint_index++] = ch;
|
} else
|
state->mountpoint [state->mountpoint_index++] = ch;
|
}
|
}
|
|
static gboolean
|
add_drive_string (guint32 len, gunichar2 *buf, LinuxMountInfoParseState *state)
|
{
|
gboolean quit = FALSE;
|
gboolean ignore_entry;
|
|
if (state->fsname_index == 1 && state->fsname [0] == '/')
|
ignore_entry = FALSE;
|
else if (memcmp ("overlay", state->fsname, state->fsname_index) == 0 ||
|
memcmp ("aufs", state->fstype, state->fstype_index) == 0) {
|
/* Don't ignore overlayfs and aufs - these might be used on Docker
|
* (https://bugzilla.xamarin.com/show_bug.cgi?id=31021) */
|
ignore_entry = FALSE;
|
} else if (state->fsname_index == 0 || memcmp ("none", state->fsname, state->fsname_index) == 0) {
|
ignore_entry = TRUE;
|
} else if (state->fstype_index >= 5 && memcmp ("fuse.", state->fstype, 5) == 0) {
|
/* Ignore GNOME's gvfs */
|
if (state->fstype_index == 21 && memcmp ("fuse.gvfs-fuse-daemon", state->fstype, state->fstype_index) == 0)
|
ignore_entry = TRUE;
|
else
|
ignore_entry = FALSE;
|
} else if (state->fstype_index == 3 && memcmp ("nfs", state->fstype, state->fstype_index) == 0)
|
ignore_entry = FALSE;
|
else
|
ignore_entry = TRUE;
|
|
if (!ignore_entry) {
|
gunichar2 *dir;
|
glong length;
|
gchar *mountpoint = state->mountpoint_allocated ? state->mountpoint_allocated : state->mountpoint;
|
|
unescape_octal (mountpoint);
|
dir = g_utf8_to_utf16 (mountpoint, -1, NULL, &length, NULL);
|
if (state->total + length + 1 > len) {
|
quit = TRUE;
|
state->total = len * 2;
|
} else {
|
length++;
|
memcpy (buf + state->total, dir, sizeof (gunichar2) * length);
|
state->total += length;
|
}
|
g_free (dir);
|
}
|
state->fsname_index = 0;
|
state->fstype_index = 0;
|
|
return quit;
|
}
|
#else
|
gint32
|
mono_w32file_get_logical_drive (guint32 len, gunichar2 *buf)
|
{
|
return GetLogicalDriveStrings_Mtab (len, buf);
|
}
|
#endif
|
static gint32
|
GetLogicalDriveStrings_Mtab (guint32 len, gunichar2 *buf)
|
{
|
FILE *fp;
|
gunichar2 *ptr, *dir;
|
glong length, total = 0;
|
gchar buffer [512];
|
gchar **splitted;
|
|
memset (buf, 0, sizeof (gunichar2) * (len + 1));
|
buf [0] = '/';
|
buf [1] = 0;
|
buf [2] = 0;
|
|
/* Sigh, mntent and friends don't work well.
|
* It stops on the first line that doesn't begin with a '/'.
|
* (linux 2.6.5, libc 2.3.2.ds1-12) - Gonz */
|
MONO_ENTER_GC_SAFE;
|
fp = fopen ("/etc/mtab", "rt");
|
MONO_EXIT_GC_SAFE;
|
if (fp == NULL) {
|
MONO_ENTER_GC_SAFE;
|
fp = fopen ("/etc/mnttab", "rt");
|
MONO_EXIT_GC_SAFE;
|
if (fp == NULL)
|
return 1;
|
}
|
|
ptr = buf;
|
while (1) {
|
gchar *fgets_res;
|
MONO_ENTER_GC_SAFE;
|
fgets_res = fgets (buffer, 512, fp);
|
MONO_EXIT_GC_SAFE;
|
if (!fgets_res)
|
break;
|
if (*buffer != '/')
|
continue;
|
|
splitted = g_strsplit (buffer, " ", 0);
|
if (!*splitted || !*(splitted + 1)) {
|
g_strfreev (splitted);
|
continue;
|
}
|
|
unescape_octal (*(splitted + 1));
|
dir = g_utf8_to_utf16 (*(splitted + 1), -1, NULL, &length, NULL);
|
g_strfreev (splitted);
|
if (total + length + 1 > len) {
|
MONO_ENTER_GC_SAFE;
|
fclose (fp);
|
MONO_EXIT_GC_SAFE;
|
g_free (dir);
|
return len * 2; /* guess */
|
}
|
|
memcpy (ptr + total, dir, sizeof (gunichar2) * length);
|
g_free (dir);
|
total += length + 1;
|
}
|
|
MONO_ENTER_GC_SAFE;
|
fclose (fp);
|
MONO_EXIT_GC_SAFE;
|
return total;
|
/* Commented out, does not work with my mtab!!! - Gonz */
|
#ifdef NOTENABLED /* HAVE_MNTENT_H */
|
{
|
FILE *fp;
|
struct mntent *mnt;
|
gunichar2 *ptr, *dir;
|
glong len, total = 0;
|
|
|
MONO_ENTER_GC_SAFE;
|
fp = setmntent ("/etc/mtab", "rt");
|
MONO_EXIT_GC_SAFE;
|
if (fp == NULL) {
|
MONO_ENTER_GC_SAFE;
|
fp = setmntent ("/etc/mnttab", "rt");
|
MONO_EXIT_GC_SAFE;
|
if (fp == NULL)
|
return;
|
}
|
|
ptr = buf;
|
while (1) {
|
MONO_ENTER_GC_SAFE;
|
mnt = getmntent (fp);
|
MONO_EXIT_GC_SAFE;
|
if (mnt == NULL)
|
break;
|
g_print ("GOT %s\n", mnt->mnt_dir);
|
dir = g_utf8_to_utf16 (mnt->mnt_dir, &len, NULL, NULL, NULL);
|
if (total + len + 1 > len) {
|
MONO_ENTER_GC_SAFE;
|
endmntent (fp);
|
MONO_EXIT_GC_SAFE;
|
return len * 2; /* guess */
|
}
|
|
memcpy (ptr + total, dir, sizeof (gunichar2) * len);
|
g_free (dir);
|
total += len + 1;
|
}
|
|
MONO_ENTER_GC_SAFE;
|
endmntent (fp);
|
MONO_EXIT_GC_SAFE;
|
return total;
|
}
|
#endif
|
}
|
#endif
|
|
#if defined(HAVE_STATVFS) || defined(HAVE_STATFS)
|
gboolean
|
mono_w32file_get_disk_free_space (const gunichar2 *path_name, guint64 *free_bytes_avail, guint64 *total_number_of_bytes, guint64 *total_number_of_free_bytes)
|
{
|
#ifdef HAVE_STATVFS
|
struct statvfs fsstat;
|
#elif defined(HAVE_STATFS)
|
struct statfs fsstat;
|
#endif
|
gboolean isreadonly;
|
gchar *utf8_path_name;
|
gint ret;
|
unsigned long block_size;
|
|
if (path_name == NULL) {
|
utf8_path_name = g_strdup (g_get_current_dir());
|
if (utf8_path_name == NULL) {
|
mono_w32error_set_last (ERROR_DIRECTORY);
|
return(FALSE);
|
}
|
}
|
else {
|
utf8_path_name = mono_unicode_to_external (path_name);
|
if (utf8_path_name == NULL) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: unicode conversion returned NULL", __func__);
|
|
mono_w32error_set_last (ERROR_INVALID_NAME);
|
return(FALSE);
|
}
|
}
|
|
do {
|
#ifdef HAVE_STATVFS
|
MONO_ENTER_GC_SAFE;
|
ret = statvfs (utf8_path_name, &fsstat);
|
MONO_EXIT_GC_SAFE;
|
isreadonly = ((fsstat.f_flag & ST_RDONLY) == ST_RDONLY);
|
block_size = fsstat.f_frsize;
|
#elif defined(HAVE_STATFS)
|
MONO_ENTER_GC_SAFE;
|
ret = statfs (utf8_path_name, &fsstat);
|
MONO_EXIT_GC_SAFE;
|
#if defined (MNT_RDONLY)
|
isreadonly = ((fsstat.f_flags & MNT_RDONLY) == MNT_RDONLY);
|
#elif defined (MS_RDONLY)
|
isreadonly = ((fsstat.f_flags & MS_RDONLY) == MS_RDONLY);
|
#endif
|
block_size = fsstat.f_bsize;
|
#endif
|
} while(ret == -1 && errno == EINTR);
|
|
g_free(utf8_path_name);
|
|
if (ret == -1) {
|
_wapi_set_last_error_from_errno ();
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: statvfs failed: %s", __func__, g_strerror (errno));
|
return(FALSE);
|
}
|
|
/* total number of free bytes for non-root */
|
if (free_bytes_avail != NULL) {
|
if (isreadonly) {
|
*free_bytes_avail = 0;
|
}
|
else {
|
*free_bytes_avail = block_size * (guint64)fsstat.f_bavail;
|
}
|
}
|
|
/* total number of bytes available for non-root */
|
if (total_number_of_bytes != NULL) {
|
*total_number_of_bytes = block_size * (guint64)fsstat.f_blocks;
|
}
|
|
/* total number of bytes available for root */
|
if (total_number_of_free_bytes != NULL) {
|
if (isreadonly) {
|
*total_number_of_free_bytes = 0;
|
}
|
else {
|
*total_number_of_free_bytes = block_size * (guint64)fsstat.f_bfree;
|
}
|
}
|
|
return(TRUE);
|
}
|
#else
|
gboolean
|
mono_w32file_get_disk_free_space (const gunichar2 *path_name, guint64 *free_bytes_avail, guint64 *total_number_of_bytes, guint64 *total_number_of_free_bytes)
|
{
|
if (free_bytes_avail != NULL) {
|
*free_bytes_avail = (guint64) -1;
|
}
|
|
if (total_number_of_bytes != NULL) {
|
*total_number_of_bytes = (guint64) -1;
|
}
|
|
if (total_number_of_free_bytes != NULL) {
|
*total_number_of_free_bytes = (guint64) -1;
|
}
|
|
return(TRUE);
|
}
|
#endif
|
|
/*
|
* General Unix support
|
*/
|
typedef struct {
|
guint32 drive_type;
|
#if __linux__
|
const long fstypeid;
|
#endif
|
const gchar* fstype;
|
} _wapi_drive_type;
|
|
static _wapi_drive_type _wapi_drive_types[] = {
|
#if HOST_DARWIN
|
{ DRIVE_REMOTE, "afp" },
|
{ DRIVE_REMOTE, "autofs" },
|
{ DRIVE_CDROM, "cddafs" },
|
{ DRIVE_CDROM, "cd9660" },
|
{ DRIVE_RAMDISK, "devfs" },
|
{ DRIVE_FIXED, "exfat" },
|
{ DRIVE_RAMDISK, "fdesc" },
|
{ DRIVE_REMOTE, "ftp" },
|
{ DRIVE_FIXED, "hfs" },
|
{ DRIVE_FIXED, "apfs" },
|
{ DRIVE_REMOTE, "kbfuse" },
|
{ DRIVE_FIXED, "msdos" },
|
{ DRIVE_REMOTE, "nfs" },
|
{ DRIVE_FIXED, "ntfs" },
|
{ DRIVE_REMOTE, "smbfs" },
|
{ DRIVE_FIXED, "udf" },
|
{ DRIVE_REMOTE, "webdav" },
|
{ DRIVE_UNKNOWN, NULL }
|
#elif __linux__
|
{ DRIVE_FIXED, ADFS_SUPER_MAGIC, "adfs"},
|
{ DRIVE_FIXED, AFFS_SUPER_MAGIC, "affs"},
|
{ DRIVE_REMOTE, AFS_SUPER_MAGIC, "afs"},
|
{ DRIVE_RAMDISK, AUTOFS_SUPER_MAGIC, "autofs"},
|
{ DRIVE_RAMDISK, AUTOFS_SBI_MAGIC, "autofs4"},
|
{ DRIVE_REMOTE, CODA_SUPER_MAGIC, "coda" },
|
{ DRIVE_RAMDISK, CRAMFS_MAGIC, "cramfs"},
|
{ DRIVE_RAMDISK, CRAMFS_MAGIC_WEND, "cramfs"},
|
{ DRIVE_REMOTE, CIFS_MAGIC_NUMBER, "cifs"},
|
{ DRIVE_RAMDISK, DEBUGFS_MAGIC, "debugfs"},
|
{ DRIVE_RAMDISK, SYSFS_MAGIC, "sysfs"},
|
{ DRIVE_RAMDISK, SECURITYFS_MAGIC, "securityfs"},
|
{ DRIVE_RAMDISK, SELINUX_MAGIC, "selinuxfs"},
|
{ DRIVE_RAMDISK, RAMFS_MAGIC, "ramfs"},
|
{ DRIVE_FIXED, SQUASHFS_MAGIC, "squashfs"},
|
{ DRIVE_FIXED, EFS_SUPER_MAGIC, "efs"},
|
{ DRIVE_FIXED, EXT2_SUPER_MAGIC, "ext"},
|
{ DRIVE_FIXED, EXT3_SUPER_MAGIC, "ext"},
|
{ DRIVE_FIXED, EXT4_SUPER_MAGIC, "ext"},
|
{ DRIVE_REMOTE, XENFS_SUPER_MAGIC, "xenfs"},
|
{ DRIVE_FIXED, BTRFS_SUPER_MAGIC, "btrfs"},
|
{ DRIVE_FIXED, HFS_SUPER_MAGIC, "hfs"},
|
{ DRIVE_FIXED, HFSPLUS_SUPER_MAGIC, "hfsplus"},
|
{ DRIVE_FIXED, HPFS_SUPER_MAGIC, "hpfs"},
|
{ DRIVE_RAMDISK, HUGETLBFS_MAGIC, "hugetlbfs"},
|
{ DRIVE_CDROM, ISOFS_SUPER_MAGIC, "iso"},
|
{ DRIVE_FIXED, JFFS2_SUPER_MAGIC, "jffs2"},
|
{ DRIVE_RAMDISK, ANON_INODE_FS_MAGIC, "anon_inode"},
|
{ DRIVE_FIXED, JFS_SUPER_MAGIC, "jfs"},
|
{ DRIVE_FIXED, MINIX_SUPER_MAGIC, "minix"},
|
{ DRIVE_FIXED, MINIX_SUPER_MAGIC2, "minix v2"},
|
{ DRIVE_FIXED, MINIX2_SUPER_MAGIC, "minix2"},
|
{ DRIVE_FIXED, MINIX2_SUPER_MAGIC2, "minix2 v2"},
|
{ DRIVE_FIXED, MINIX3_SUPER_MAGIC, "minix3"},
|
{ DRIVE_FIXED, MSDOS_SUPER_MAGIC, "msdos"},
|
{ DRIVE_REMOTE, NCP_SUPER_MAGIC, "ncp"},
|
{ DRIVE_REMOTE, NFS_SUPER_MAGIC, "nfs"},
|
{ DRIVE_FIXED, NTFS_SB_MAGIC, "ntfs"},
|
{ DRIVE_RAMDISK, OPENPROM_SUPER_MAGIC, "openpromfs"},
|
{ DRIVE_RAMDISK, PROC_SUPER_MAGIC, "proc"},
|
{ DRIVE_FIXED, QNX4_SUPER_MAGIC, "qnx4"},
|
{ DRIVE_FIXED, REISERFS_SUPER_MAGIC, "reiserfs"},
|
{ DRIVE_RAMDISK, ROMFS_MAGIC, "romfs"},
|
{ DRIVE_REMOTE, SMB_SUPER_MAGIC, "samba"},
|
{ DRIVE_RAMDISK, CGROUP_SUPER_MAGIC, "cgroupfs"},
|
{ DRIVE_RAMDISK, FUTEXFS_SUPER_MAGIC, "futexfs"},
|
{ DRIVE_FIXED, SYSV2_SUPER_MAGIC, "sysv2"},
|
{ DRIVE_FIXED, SYSV4_SUPER_MAGIC, "sysv4"},
|
{ DRIVE_RAMDISK, TMPFS_MAGIC, "tmpfs"},
|
{ DRIVE_RAMDISK, DEVPTS_SUPER_MAGIC, "devpts"},
|
{ DRIVE_CDROM, UDF_SUPER_MAGIC, "udf"},
|
{ DRIVE_FIXED, UFS_MAGIC, "ufs"},
|
{ DRIVE_FIXED, UFS_MAGIC_BW, "ufs"},
|
{ DRIVE_FIXED, UFS2_MAGIC, "ufs2"},
|
{ DRIVE_FIXED, UFS_CIGAM, "ufs"},
|
{ DRIVE_RAMDISK, USBDEVICE_SUPER_MAGIC, "usbdev"},
|
{ DRIVE_FIXED, XENIX_SUPER_MAGIC, "xenix"},
|
{ DRIVE_FIXED, XFS_SB_MAGIC, "xfs"},
|
{ DRIVE_RAMDISK, FUSE_SUPER_MAGIC, "fuse"},
|
{ DRIVE_FIXED, V9FS_MAGIC, "9p"},
|
{ DRIVE_REMOTE, CEPH_SUPER_MAGIC, "ceph"},
|
{ DRIVE_RAMDISK, CONFIGFS_MAGIC, "configfs"},
|
{ DRIVE_RAMDISK, ECRYPTFS_SUPER_MAGIC, "eCryptfs"},
|
{ DRIVE_FIXED, EXOFS_SUPER_MAGIC, "exofs"},
|
{ DRIVE_FIXED, VXFS_SUPER_MAGIC, "vxfs"},
|
{ DRIVE_FIXED, VXFS_OLT_MAGIC, "vxfs_olt"},
|
{ DRIVE_REMOTE, GFS2_MAGIC, "gfs2"},
|
{ DRIVE_FIXED, LOGFS_MAGIC_U32, "logfs"},
|
{ DRIVE_FIXED, OCFS2_SUPER_MAGIC, "ocfs2"},
|
{ DRIVE_FIXED, OMFS_MAGIC, "omfs"},
|
{ DRIVE_FIXED, UBIFS_SUPER_MAGIC, "ubifs"},
|
{ DRIVE_UNKNOWN, 0, NULL}
|
#else
|
{ DRIVE_RAMDISK, "ramfs" },
|
{ DRIVE_RAMDISK, "tmpfs" },
|
{ DRIVE_RAMDISK, "proc" },
|
{ DRIVE_RAMDISK, "sysfs" },
|
{ DRIVE_RAMDISK, "debugfs" },
|
{ DRIVE_RAMDISK, "devpts" },
|
{ DRIVE_RAMDISK, "securityfs" },
|
{ DRIVE_CDROM, "iso9660" },
|
{ DRIVE_FIXED, "ext2" },
|
{ DRIVE_FIXED, "ext3" },
|
{ DRIVE_FIXED, "ext4" },
|
{ DRIVE_FIXED, "sysv" },
|
{ DRIVE_FIXED, "reiserfs" },
|
{ DRIVE_FIXED, "ufs" },
|
{ DRIVE_FIXED, "vfat" },
|
{ DRIVE_FIXED, "msdos" },
|
{ DRIVE_FIXED, "udf" },
|
{ DRIVE_FIXED, "hfs" },
|
{ DRIVE_FIXED, "hpfs" },
|
{ DRIVE_FIXED, "qnx4" },
|
{ DRIVE_FIXED, "ntfs" },
|
{ DRIVE_FIXED, "ntfs-3g" },
|
{ DRIVE_REMOTE, "smbfs" },
|
{ DRIVE_REMOTE, "fuse" },
|
{ DRIVE_REMOTE, "nfs" },
|
{ DRIVE_REMOTE, "nfs4" },
|
{ DRIVE_REMOTE, "cifs" },
|
{ DRIVE_REMOTE, "ncpfs" },
|
{ DRIVE_REMOTE, "coda" },
|
{ DRIVE_REMOTE, "afs" },
|
{ DRIVE_UNKNOWN, NULL }
|
#endif
|
};
|
|
#if __linux__
|
static guint32 _wapi_get_drive_type(long f_type)
|
{
|
_wapi_drive_type *current;
|
|
current = &_wapi_drive_types[0];
|
while (current->drive_type != DRIVE_UNKNOWN) {
|
if (current->fstypeid == f_type)
|
return current->drive_type;
|
current++;
|
}
|
|
return DRIVE_UNKNOWN;
|
}
|
#else
|
static guint32 _wapi_get_drive_type(const gchar* fstype)
|
{
|
_wapi_drive_type *current;
|
|
current = &_wapi_drive_types[0];
|
while (current->drive_type != DRIVE_UNKNOWN) {
|
if (strcmp (current->fstype, fstype) == 0)
|
break;
|
|
current++;
|
}
|
|
return current->drive_type;
|
}
|
#endif
|
|
#if defined (HOST_DARWIN) || defined (__linux__)
|
static guint32
|
GetDriveTypeFromPath (const gchar *utf8_root_path_name)
|
{
|
struct statfs buf;
|
gint res;
|
|
MONO_ENTER_GC_SAFE;
|
res = statfs (utf8_root_path_name, &buf);
|
MONO_EXIT_GC_SAFE;
|
if (res == -1)
|
return DRIVE_UNKNOWN;
|
#if HOST_DARWIN
|
return _wapi_get_drive_type (buf.f_fstypename);
|
#else
|
return _wapi_get_drive_type (buf.f_type);
|
#endif
|
}
|
#else
|
static guint32
|
GetDriveTypeFromPath (const gchar *utf8_root_path_name)
|
{
|
guint32 drive_type;
|
FILE *fp;
|
gchar buffer [512];
|
gchar **splitted;
|
|
MONO_ENTER_GC_SAFE;
|
fp = fopen ("/etc/mtab", "rt");
|
MONO_EXIT_GC_SAFE;
|
if (fp == NULL) {
|
MONO_ENTER_GC_SAFE;
|
fp = fopen ("/etc/mnttab", "rt");
|
MONO_EXIT_GC_SAFE;
|
if (fp == NULL)
|
return(DRIVE_UNKNOWN);
|
}
|
|
drive_type = DRIVE_NO_ROOT_DIR;
|
while (1) {
|
gchar *fgets_res;
|
MONO_ENTER_GC_SAFE;
|
fgets_res = fgets (buffer, 512, fp);
|
MONO_EXIT_GC_SAFE;
|
if (fgets_res == NULL)
|
break;
|
splitted = g_strsplit (buffer, " ", 0);
|
if (!*splitted || !*(splitted + 1) || !*(splitted + 2)) {
|
g_strfreev (splitted);
|
continue;
|
}
|
|
/* compare given root_path_name with the one from mtab,
|
if length of utf8_root_path_name is zero it must be the root dir */
|
if (strcmp (*(splitted + 1), utf8_root_path_name) == 0 ||
|
(strcmp (*(splitted + 1), "/") == 0 && strlen (utf8_root_path_name) == 0)) {
|
drive_type = _wapi_get_drive_type (*(splitted + 2));
|
/* it is possible this path might be mounted again with
|
a known type...keep looking */
|
if (drive_type != DRIVE_UNKNOWN) {
|
g_strfreev (splitted);
|
break;
|
}
|
}
|
|
g_strfreev (splitted);
|
}
|
|
MONO_ENTER_GC_SAFE;
|
fclose (fp);
|
MONO_EXIT_GC_SAFE;
|
return drive_type;
|
}
|
#endif
|
|
guint32
|
mono_w32file_get_drive_type(const gunichar2 *root_path_name)
|
{
|
gchar *utf8_root_path_name;
|
guint32 drive_type;
|
|
if (root_path_name == NULL) {
|
utf8_root_path_name = g_strdup (g_get_current_dir());
|
if (utf8_root_path_name == NULL) {
|
return(DRIVE_NO_ROOT_DIR);
|
}
|
}
|
else {
|
utf8_root_path_name = mono_unicode_to_external (root_path_name);
|
if (utf8_root_path_name == NULL) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: unicode conversion returned NULL", __func__);
|
return(DRIVE_NO_ROOT_DIR);
|
}
|
|
/* strip trailing slash for compare below */
|
if (g_str_has_suffix(utf8_root_path_name, "/") && utf8_root_path_name [1] != 0) {
|
utf8_root_path_name[strlen(utf8_root_path_name) - 1] = 0;
|
}
|
}
|
drive_type = GetDriveTypeFromPath (utf8_root_path_name);
|
g_free (utf8_root_path_name);
|
|
return (drive_type);
|
}
|
|
#if defined (HOST_DARWIN) || defined (__linux__) || defined(HOST_BSD) || defined(__FreeBSD_kernel__) || defined(__HAIKU__)
|
static gchar*
|
get_fstypename (gchar *utfpath)
|
{
|
#if defined (HOST_DARWIN) || defined (__linux__)
|
struct statfs stat;
|
#if __linux__
|
_wapi_drive_type *current;
|
#endif
|
gint statfs_res;
|
MONO_ENTER_GC_SAFE;
|
statfs_res = statfs (utfpath, &stat);
|
MONO_EXIT_GC_SAFE;
|
if (statfs_res == -1)
|
return NULL;
|
#if HOST_DARWIN
|
return g_strdup (stat.f_fstypename);
|
#else
|
current = &_wapi_drive_types[0];
|
while (current->drive_type != DRIVE_UNKNOWN) {
|
if (stat.f_type == current->fstypeid)
|
return g_strdup (current->fstype);
|
current++;
|
}
|
return NULL;
|
#endif
|
#else
|
return NULL;
|
#endif
|
}
|
|
/* Linux has struct statfs which has a different layout */
|
gboolean
|
mono_w32file_get_volume_information (const gunichar2 *path, gunichar2 *volumename, gint volumesize, gint *outserial, gint *maxcomp, gint *fsflags, gunichar2 *fsbuffer, gint fsbuffersize)
|
{
|
gchar *utfpath;
|
gchar *fstypename;
|
gboolean status = FALSE;
|
glong len;
|
|
// We only support getting the file system type
|
if (fsbuffer == NULL)
|
return 0;
|
|
utfpath = mono_unicode_to_external (path);
|
if ((fstypename = get_fstypename (utfpath)) != NULL){
|
gunichar2 *ret = g_utf8_to_utf16 (fstypename, -1, NULL, &len, NULL);
|
if (ret != NULL && len < fsbuffersize){
|
memcpy (fsbuffer, ret, len * sizeof (gunichar2));
|
fsbuffer [len] = 0;
|
status = TRUE;
|
}
|
if (ret != NULL)
|
g_free (ret);
|
g_free (fstypename);
|
}
|
g_free (utfpath);
|
return status;
|
}
|
#endif
|
|
static gboolean
|
LockFile (gpointer handle, guint32 offset_low, guint32 offset_high, guint32 length_low, guint32 length_high)
|
{
|
FileHandle *filehandle;
|
gboolean ret;
|
off_t offset, length;
|
|
if (!mono_fdhandle_lookup_and_ref(GPOINTER_TO_INT(handle), (MonoFDHandle**) &filehandle)) {
|
mono_w32error_set_last (ERROR_INVALID_HANDLE);
|
return FALSE;
|
}
|
|
if (((MonoFDHandle*) filehandle)->type != MONO_FDTYPE_FILE) {
|
mono_w32error_set_last (ERROR_INVALID_HANDLE);
|
mono_fdhandle_unref ((MonoFDHandle*) filehandle);
|
return FALSE;
|
}
|
|
if (!(filehandle->fileaccess & (GENERIC_READ | GENERIC_WRITE | GENERIC_ALL))) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: fd %d doesn't have GENERIC_READ or GENERIC_WRITE access: %u", __func__, ((MonoFDHandle*) filehandle)->fd, filehandle->fileaccess);
|
mono_w32error_set_last (ERROR_ACCESS_DENIED);
|
mono_fdhandle_unref ((MonoFDHandle*) filehandle);
|
return FALSE;
|
}
|
|
#ifdef HAVE_LARGE_FILE_SUPPORT
|
offset = ((gint64)offset_high << 32) | offset_low;
|
length = ((gint64)length_high << 32) | length_low;
|
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: Locking fd %d, offset %" G_GINT64_FORMAT ", length %" G_GINT64_FORMAT, __func__, ((MonoFDHandle*) filehandle)->fd, (gint64) offset, (gint64) length);
|
#else
|
if (offset_high > 0 || length_high > 0) {
|
mono_w32error_set_last (ERROR_INVALID_PARAMETER);
|
mono_fdhandle_unref ((MonoFDHandle*) filehandle);
|
return FALSE;
|
}
|
|
offset = offset_low;
|
length = length_low;
|
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: Locking fd %d, offset %" G_GINT64_FORMAT ", length %" G_GINT64_FORMAT, __func__, ((MonoFDHandle*) filehandle)->fd, (gint64) offset, (gint64) length);
|
#endif
|
|
ret = _wapi_lock_file_region (((MonoFDHandle*) filehandle)->fd, offset, length);
|
|
mono_fdhandle_unref ((MonoFDHandle*) filehandle);
|
return ret;
|
}
|
|
static gboolean
|
UnlockFile (gpointer handle, guint32 offset_low, guint32 offset_high, guint32 length_low, guint32 length_high)
|
{
|
FileHandle *filehandle;
|
gboolean ret;
|
off_t offset, length;
|
|
if (!mono_fdhandle_lookup_and_ref(GPOINTER_TO_INT(handle), (MonoFDHandle**) &filehandle)) {
|
mono_w32error_set_last (ERROR_INVALID_HANDLE);
|
return FALSE;
|
}
|
|
if (((MonoFDHandle*) filehandle)->type != MONO_FDTYPE_FILE) {
|
mono_w32error_set_last (ERROR_INVALID_HANDLE);
|
mono_fdhandle_unref ((MonoFDHandle*) filehandle);
|
return FALSE;
|
}
|
|
if (!(filehandle->fileaccess & (GENERIC_READ | GENERIC_WRITE | GENERIC_ALL))) {
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: fd %d doesn't have GENERIC_READ or GENERIC_WRITE access: %u", __func__, ((MonoFDHandle*) filehandle)->fd, filehandle->fileaccess);
|
mono_w32error_set_last (ERROR_ACCESS_DENIED);
|
mono_fdhandle_unref ((MonoFDHandle*) filehandle);
|
return FALSE;
|
}
|
|
#ifdef HAVE_LARGE_FILE_SUPPORT
|
offset = ((gint64)offset_high << 32) | offset_low;
|
length = ((gint64)length_high << 32) | length_low;
|
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: Unlocking fd %d, offset %" G_GINT64_FORMAT ", length %" G_GINT64_FORMAT, __func__, ((MonoFDHandle*) filehandle)->fd, (gint64) offset, (gint64) length);
|
#else
|
offset = offset_low;
|
length = length_low;
|
|
mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_FILE, "%s: Unlocking fd %p, offset %" G_GINT64_FORMAT ", length %" G_GINT64_FORMAT, __func__, ((MonoFDHandle*) filehandle)->fd, (gint64) offset, (gint64) length);
|
#endif
|
|
ret = _wapi_unlock_file_region (((MonoFDHandle*) filehandle)->fd, offset, length);
|
|
mono_fdhandle_unref ((MonoFDHandle*) filehandle);
|
return ret;
|
}
|
|
void
|
mono_w32file_init (void)
|
{
|
MonoFDHandleCallback file_data_callbacks = {
|
.close = file_data_close,
|
.destroy = file_data_destroy
|
};
|
|
mono_fdhandle_register (MONO_FDTYPE_FILE, &file_data_callbacks);
|
mono_fdhandle_register (MONO_FDTYPE_CONSOLE, &file_data_callbacks);
|
mono_fdhandle_register (MONO_FDTYPE_PIPE, &file_data_callbacks);
|
|
mono_coop_mutex_init (&file_share_mutex);
|
|
finds = g_hash_table_new (g_direct_hash, g_direct_equal);
|
mono_coop_mutex_init (&finds_mutex);
|
|
if (g_hasenv ("MONO_STRICT_IO_EMULATION"))
|
lock_while_writing = TRUE;
|
}
|
|
void
|
mono_w32file_cleanup (void)
|
{
|
mono_coop_mutex_destroy (&file_share_mutex);
|
|
if (file_share_table)
|
g_hash_table_destroy (file_share_table);
|
|
g_hash_table_destroy (finds);
|
mono_coop_mutex_destroy (&finds_mutex);
|
}
|
|
gboolean
|
mono_w32file_move (const gunichar2 *path, const gunichar2 *dest, gint32 *error)
|
{
|
gboolean result;
|
|
result = MoveFile (path, dest);
|
if (!result)
|
*error = mono_w32error_get_last ();
|
return result;
|
}
|
|
gboolean
|
mono_w32file_copy (const gunichar2 *path, const gunichar2 *dest, gboolean overwrite, gint32 *error)
|
{
|
gboolean result;
|
|
result = CopyFile (path, dest, !overwrite);
|
if (!result)
|
*error = mono_w32error_get_last ();
|
|
return result;
|
}
|
|
gboolean
|
mono_w32file_replace (const gunichar2 *destination_file_name, const gunichar2 *source_file_name, const gunichar2 *destination_backup_file_name, guint32 flags, gint32 *error)
|
{
|
gboolean result;
|
|
result = ReplaceFile (destination_file_name, source_file_name, destination_backup_file_name, flags, NULL, NULL);
|
if (!result)
|
*error = mono_w32error_get_last ();
|
return result;
|
}
|
|
gint64
|
mono_w32file_get_file_size (gpointer handle, gint32 *error)
|
{
|
gint64 length;
|
guint32 length_hi;
|
|
length = GetFileSize (handle, &length_hi);
|
if(length==INVALID_FILE_SIZE) {
|
*error=mono_w32error_get_last ();
|
}
|
|
return length | ((gint64)length_hi << 32);
|
}
|
|
gboolean
|
mono_w32file_lock (gpointer handle, gint64 position, gint64 length, gint32 *error)
|
{
|
gboolean result;
|
|
result = LockFile (handle, position & 0xFFFFFFFF, position >> 32, length & 0xFFFFFFFF, length >> 32);
|
if (!result)
|
*error = mono_w32error_get_last ();
|
return result;
|
}
|
|
gboolean
|
mono_w32file_unlock (gpointer handle, gint64 position, gint64 length, gint32 *error)
|
{
|
gboolean result;
|
|
result = UnlockFile (handle, position & 0xFFFFFFFF, position >> 32, length & 0xFFFFFFFF, length >> 32);
|
if (!result)
|
*error = mono_w32error_get_last ();
|
return result;
|
}
|
|
gpointer
|
mono_w32file_get_console_input (void)
|
{
|
return mono_w32file_get_std_handle (STD_INPUT_HANDLE);
|
}
|
|
gpointer
|
mono_w32file_get_console_output (void)
|
{
|
return mono_w32file_get_std_handle (STD_OUTPUT_HANDLE);
|
}
|
|
gpointer
|
mono_w32file_get_console_error (void)
|
{
|
return mono_w32file_get_std_handle (STD_ERROR_HANDLE);
|
}
|
