*/
/*
- * Copyright (C) 2012 Eric Biggers
+ * Copyright (C) 2012, 2013 Eric Biggers
*
* This file is part of wimlib, a library for working with WIM files.
*
#include "config.h"
+#if defined(__CYGWIN__) || defined(__WIN32__)
+#include <windows.h>
+# ifdef ERROR
+# undef ERROR
+# endif
+#include <wchar.h>
+#endif
+
#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
#include <ntfs-3g/volume.h>
#endif
+#ifdef HAVE_ALLOCA_H
+#include <alloca.h>
+#else
+#include <stdlib.h>
+#endif
+
+#if defined(__CYGWIN__) || defined(__WIN32__)
+
+static int win32_set_reparse_data(HANDLE h,
+ u32 reparse_tag,
+ const struct wim_lookup_table_entry *lte,
+ const wchar_t *path,
+ const char *path_utf8)
+{
+ int ret;
+ u8 *buf;
+ size_t len;
+
+ if (!lte) {
+ WARNING("\"%s\" is marked as a reparse point but had no reparse data",
+ path_utf8);
+ return 0;
+ }
+ len = wim_resource_size(lte);
+ if (len > 16 * 1024 - 8) {
+ WARNING("\"%s\": reparse data too long!", path_utf8);
+ return 0;
+ }
+ buf = alloca(len + 8);
+ ret = read_full_wim_resource(lte, buf + 8, 0);
+ if (ret)
+ return ret;
+ *(u32*)(buf + 0) = reparse_tag;
+ *(u16*)(buf + 4) = len;
+ if (!DeviceIoControl(h, FSCTL_SET_REPARSE_POINT, buf, len + 8,
+ NULL, 0, NULL, NULL))
+ {
+ DWORD err = GetLastError();
+ ERROR("Failed to set reparse data on \"%s\"",
+ path_utf8);
+ win32_error(err);
+ ret = WIMLIB_ERR_WRITE;
+ } else
+ ret = 0;
+ return ret;
+}
+
+
+static int win32_extract_chunk(const u8 *buf, size_t len, u64 offset, void *arg)
+{
+ HANDLE hStream = arg;
+
+ DWORD nbytes_written;
+ wimlib_assert(len <= 0xffffffff);
+
+ if (!WriteFile(hStream, buf, len, &nbytes_written, NULL) ||
+ nbytes_written != len)
+ {
+ DWORD err = GetLastError();
+ ERROR("WriteFile(): write error");
+ win32_error(err);
+ return WIMLIB_ERR_WRITE;
+ }
+ return 0;
+}
+
+static int do_win32_extract_stream(HANDLE hStream, struct wim_lookup_table_entry *lte)
+{
+ return extract_wim_resource(lte, wim_resource_size(lte),
+ win32_extract_chunk, hStream);
+}
+
+static int win32_extract_stream(const struct wim_inode *inode,
+ const wchar_t *path,
+ const wchar_t *stream_name_utf16,
+ struct wim_lookup_table_entry *lte,
+ const char *path_utf8)
+{
+ wchar_t *stream_path;
+ HANDLE h;
+ int ret;
+
+ if (stream_name_utf16) {
+ size_t stream_path_nchars;
+ size_t path_nchars = wcslen(path);
+ size_t stream_name_nchars = wcslen(stream_name_utf16);
+
+ stream_path_nchars = path_nchars + 1 + stream_name_nchars;
+
+ stream_path = alloca((stream_path_nchars + 1) * sizeof(wchar_t));
+
+ memcpy(stream_path, path, path_nchars * sizeof(wchar_t));
+ stream_path[path_nchars] = L':';
+ memcpy(&stream_path[path_nchars + 1], stream_name_utf16,
+ stream_name_nchars * sizeof(wchar_t));
+ stream_path[stream_path_nchars] = L'\0';
+
+ /*wsprintf(stream_path, stream_path_nchars, L"%ls:%ls",*/
+ /*path, stream_name_utf16);*/
+ } else {
+ stream_path = (wchar_t*)path;
+ }
+
+ h = CreateFileW(stream_path,
+ GENERIC_WRITE | WRITE_OWNER | WRITE_DAC,
+ 0,
+ NULL,
+ CREATE_ALWAYS,
+ FILE_FLAG_OPEN_REPARSE_POINT |
+ FILE_FLAG_BACKUP_SEMANTICS |
+ inode->i_attributes,
+ NULL);
+ if (!h) {
+ win32_error(GetLastError());
+ ret = WIMLIB_ERR_OPEN;
+ goto fail;
+ }
+
+ if (inode->i_attributes & FILE_ATTRIBUTE_REPARSE_POINT) {
+ ret = win32_set_reparse_data(h, inode->i_reparse_tag,
+ lte, path, path_utf8);
+ if (ret)
+ goto fail_close_handle;
+ } else {
+ if (lte) {
+ ret = do_win32_extract_stream(h, lte);
+ if (ret)
+ goto fail_close_handle;
+ }
+ }
+
+ if (!CloseHandle(h)) {
+ win32_error(GetLastError());
+ ret = WIMLIB_ERR_WRITE;
+ goto fail;
+ }
+ ret = 0;
+ goto out;
+fail_close_handle:
+ CloseHandle(h);
+fail:
+ ERROR("Error extracting %s", path_utf8);
+out:
+ return ret;
+}
+
+static int win32_extract_streams(struct wim_inode *inode,
+ const wchar_t *path,
+ const char *path_utf8)
+{
+ struct wim_lookup_table_entry *unnamed_lte;
+ int ret;
+
+ ret = win32_extract_stream(inode, path, NULL, unnamed_lte, path_utf8);
+ if (ret)
+ goto out;
+
+ for (u16 i = 0; i < inode->i_num_ads; i++) {
+ const struct wim_ads_entry *ads_entry = &inode->i_ads_entries[i];
+ if (ads_entry->stream_name_len != 0) {
+ ret = win32_extract_stream(inode,
+ path,
+ (const wchar_t*)ads_entry->stream_name,
+ ads_entry->lte,
+ path_utf8);
+ if (ret)
+ goto out;
+ }
+ }
+ ret = 0;
+out:
+ return ret;
+}
+
+static int win32_set_security_data(const struct wim_inode *inode,
+ const wchar_t *path,
+ const struct wim_security_data *sd,
+ const char *path_utf8)
+{
+ SECURITY_INFORMATION securityInformation = DACL_SECURITY_INFORMATION |
+ SACL_SECURITY_INFORMATION |
+ OWNER_SECURITY_INFORMATION |
+ GROUP_SECURITY_INFORMATION;
+ if (!SetFileSecurityW(path, securityInformation,
+ (PSECURITY_DESCRIPTOR)sd->descriptors[inode->i_security_id]))
+ {
+ DWORD err = GetLastError();
+ ERROR("Can't set security descriptor on \"%s\"", path_utf8);
+ win32_error(err);
+ return WIMLIB_ERR_WRITE;
+ }
+ return 0;
+}
+
+#else
static int extract_regular_file_linked(struct wim_dentry *dentry,
const char *output_path,
struct apply_args *args,
return 0;
}
+static int symlink_apply_unix_data(const char *link,
+ const struct wimlib_unix_data *unix_data)
+{
+ if (lchown(link, unix_data->uid, unix_data->gid)) {
+ if (errno == EPERM) {
+ /* Ignore */
+ WARNING_WITH_ERRNO("failed to set symlink UNIX owner/group");
+ } else {
+ ERROR_WITH_ERRNO("failed to set symlink UNIX owner/group");
+ return WIMLIB_ERR_INVALID_DENTRY;
+ }
+ }
+ return 0;
+}
+
+static int fd_apply_unix_data(int fd, const struct wimlib_unix_data *unix_data)
+{
+ if (fchown(fd, unix_data->uid, unix_data->gid)) {
+ if (errno == EPERM) {
+ WARNING_WITH_ERRNO("failed to set file UNIX owner/group");
+ /* Ignore? */
+ } else {
+ ERROR_WITH_ERRNO("failed to set file UNIX owner/group");
+ return WIMLIB_ERR_INVALID_DENTRY;
+ }
+ }
+
+ if (fchmod(fd, unix_data->mode)) {
+ if (errno == EPERM) {
+ WARNING_WITH_ERRNO("failed to set UNIX file mode");
+ /* Ignore? */
+ } else {
+ ERROR_WITH_ERRNO("failed to set UNIX file mode");
+ return WIMLIB_ERR_INVALID_DENTRY;
+ }
+ }
+ return 0;
+}
+
+static int dir_apply_unix_data(const char *dir,
+ const struct wimlib_unix_data *unix_data)
+{
+ int dfd = open(dir, O_RDONLY);
+ int ret;
+ if (dfd >= 0) {
+ ret = fd_apply_unix_data(dfd, unix_data);
+ if (close(dfd)) {
+ ERROR_WITH_ERRNO("can't close directory `%s'", dir);
+ ret = WIMLIB_ERR_MKDIR;
+ }
+ } else {
+ ERROR_WITH_ERRNO("can't open directory `%s'", dir);
+ ret = WIMLIB_ERR_MKDIR;
+ }
+ return ret;
+}
+
static int extract_regular_file_unlinked(struct wim_dentry *dentry,
struct apply_args *args,
const char *output_path,
/* Empty file with no lookup table entry */
DEBUG("Empty file `%s'.", output_path);
ret = 0;
- goto out;
+ goto out_extract_unix_data;
}
ret = extract_wim_resource_to_fd(lte, out_fd, wim_resource_size(lte));
ERROR("Failed to extract resource to `%s'", output_path);
goto out;
}
- args->progress.extract.completed_bytes += wim_resource_size(lte);
+
+out_extract_unix_data:
+ if (args->extract_flags & WIMLIB_EXTRACT_FLAG_UNIX_DATA) {
+ struct wimlib_unix_data unix_data;
+ ret = inode_get_unix_data(inode, &unix_data, NULL);
+ if (ret > 0)
+ ;
+ else if (ret < 0)
+ ret = 0;
+ else
+ ret = fd_apply_unix_data(out_fd, &unix_data);
+ if (ret != 0)
+ goto out;
+ }
+ if (lte)
+ args->progress.extract.completed_bytes += wim_resource_size(lte);
out:
if (close(out_fd) != 0) {
ERROR_WITH_ERRNO("Failed to close file `%s'", output_path);
- ret = WIMLIB_ERR_WRITE;
+ if (ret == 0)
+ ret = WIMLIB_ERR_WRITE;
}
return ret;
}
return WIMLIB_ERR_LINK;
}
lte = inode_unnamed_lte_resolved(dentry->d_inode);
+ wimlib_assert(lte != NULL);
+ if (args->extract_flags & WIMLIB_EXTRACT_FLAG_UNIX_DATA) {
+ struct wimlib_unix_data unix_data;
+ ret = inode_get_unix_data(dentry->d_inode, &unix_data, NULL);
+ if (ret > 0)
+ ;
+ else if (ret < 0)
+ ret = 0;
+ else
+ ret = symlink_apply_unix_data(output_path, &unix_data);
+ if (ret != 0)
+ return ret;
+ }
args->progress.extract.completed_bytes += wim_resource_size(lte);
return 0;
}
-static int extract_directory(const char *output_path, bool is_root)
+#endif /* !__CYGWIN__ && !__WIN32__ */
+
+static int extract_directory(struct wim_dentry *dentry,
+ const char *output_path, bool is_root)
{
int ret;
struct stat stbuf;
+
ret = stat(output_path, &stbuf);
if (ret == 0) {
if (S_ISDIR(stbuf.st_mode)) {
/*if (!is_root)*/
/*WARNING("`%s' already exists", output_path);*/
- return 0;
+ goto dir_exists;
} else {
ERROR("`%s' is not a directory", output_path);
return WIMLIB_ERR_MKDIR;
output_path);
return WIMLIB_ERR_MKDIR;
}
- return 0;
+dir_exists:
+ if (dentry) {
+ struct wimlib_unix_data unix_data;
+ ret = inode_get_unix_data(dentry->d_inode, &unix_data, NULL);
+ if (ret > 0)
+ ;
+ else if (ret < 0)
+ ret = 0;
+ else
+ ret = dir_apply_unix_data(output_path, &unix_data);
+ } else {
+ ret = 0;
+ }
+ return ret;
}
/* Extracts a file, directory, or symbolic link from the WIM archive. */
memcpy(output_path + len, dentry->full_path_utf8, dentry->full_path_utf8_len);
output_path[len + dentry->full_path_utf8_len] = '\0';
+#if defined(__CYGWIN__) || defined(__WIN32__)
+ char *utf16_path;
+ size_t utf16_path_len;
+ DWORD err;
+ int ret;
+ ret = utf8_to_utf16(output_path, len + dentry->full_path_utf8_len,
+ &utf16_path, &utf16_path_len);
+ if (ret)
+ return ret;
+
+ if (inode->i_nlink > 1 && inode->i_extracted_file != NULL) {
+ /* Linked file, with another name already extracted */
+ if (!CreateHardLinkW((const wchar_t*)inode->i_extracted_file,
+ (const wchar_t*)utf16_path,
+ NULL))
+ {
+ err = GetLastError();
+ ERROR("Can't create hard link \"%s\"", output_path);
+ ret = WIMLIB_ERR_LINK;
+ win32_error(err);
+ goto out_free_utf16_path;
+ }
+ ret = 0;
+ goto out_free_utf16_path;
+ }
+ ret = win32_extract_streams(inode, (const wchar_t*)utf16_path,
+ output_path);
+ if (ret)
+ goto out_free_utf16_path;
+
+ if (inode->i_security_id != -1) {
+ ret = win32_set_security_data(inode,
+ (const wchar_t*)utf16_path,
+ wim_const_security_data(args->w),
+ output_path);
+ if (ret)
+ goto out_free_utf16_path;
+ }
+
+ /*if (inode->i_attributes & FILE_ATTRIBUTE_REPARSE_POINT) {*/
+ /*ret = win32_set_reparse_data(inode, path, output_path);*/
+ /*if (ret)*/
+ /*goto out_free_utf16_path;*/
+ /*}*/
+
+ if (inode->i_nlink > 1) {
+ inode->i_extracted_file = utf16_path;
+ utf16_path = NULL;
+ }
+ ret = 0;
+out_free_utf16_path:
+ FREE(utf16_path);
+ return ret;
+#else
if (inode_is_symlink(inode))
return extract_symlink(dentry, args, output_path);
else if (inode_is_directory(inode))
- return extract_directory(output_path, false);
+ return extract_directory((args->extract_flags &
+ WIMLIB_EXTRACT_FLAG_UNIX_DATA) ? dentry : NULL,
+ output_path, false);
else
return extract_regular_file(dentry, args, output_path);
+#endif
}
/* Apply timestamps to an extracted file or directory */
memcpy(output_path + len, dentry->full_path_utf8, dentry->full_path_utf8_len);
output_path[len + dentry->full_path_utf8_len] = '\0';
+#if defined(__CYGWIN__) || defined(__WIN32__)
+ /* Win32 */
+ char *utf16_path;
+ size_t utf16_path_len;
+ DWORD err;
+ HANDLE h;
+ BOOL bret1, bret2;
+
+ ret = utf8_to_utf16(output_path, len + dentry->full_path_utf8_len,
+ &utf16_path, &utf16_path_len);
+ if (ret)
+ return ret;
+ h = CreateFile(utf16_path, GENERIC_WRITE, 0, NULL, OPEN_EXISTING,
+ FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OPEN_REPARSE_POINT,
+ NULL);
+
+ if (!h)
+ err = GetLastError();
+ FREE(utf16_path);
+ if (!h)
+ goto fail;
+
+ FILETIME creationTime = {.dwLowDateTime = dentry->d_inode->i_creation_time & 0xffffffff,
+ .dwHighDateTime = dentry->d_inode->i_creation_time >> 32};
+ FILETIME lastAccessTime = {.dwLowDateTime = dentry->d_inode->i_last_access_time & 0xffffffff,
+ .dwHighDateTime = dentry->d_inode->i_last_access_time >> 32};
+ FILETIME lastWriteTime = {.dwLowDateTime = dentry->d_inode->i_last_write_time & 0xffffffff,
+ .dwHighDateTime = dentry->d_inode->i_last_write_time >> 32};
+
+ if (!SetFileTime(h, &creationTime, &lastAccessTime, &lastWriteTime)) {
+ err = GetLastError();
+ CloseHandle(h);
+ goto fail;
+ }
+ if (!CloseHandle(h)) {
+ err = GetLastError();
+ goto fail;
+ }
+ return 0;
+fail:
+ err = GetLastError();
+ ERROR("Can't set timestamps on \"%s\"", output_path);
+ win32_error(err);
+ return WIMLIB_ERR_WRITE;
+#else
+ /* UNIX */
+
/* Convert the WIM timestamps, which are accurate to 100 nanoseconds,
* into struct timeval's. */
struct timeval tv[2];
}
}
return 0;
+#endif
}
/* Extract a dentry if it hasn't already been extracted, and either the dentry
int image;
const char *image_name;
- ret = extract_directory(target, true);
+ ret = extract_directory(NULL, target, true);
if (ret != 0)
return ret;
== (WIMLIB_EXTRACT_FLAG_SYMLINK | WIMLIB_EXTRACT_FLAG_HARDLINK))
return WIMLIB_ERR_INVALID_PARAM;
+#if defined(__CYGWIN__) || defined(__WIN32__)
+ if (extract_flags & WIMLIB_EXTRACT_FLAG_UNIX_DATA) {
+ ERROR("Extracting UNIX data is not supported on Windows");
+ return WIMLIB_ERR_INVALID_PARAM;
+ }
+#endif
+
if (extract_flags & WIMLIB_EXTRACT_FLAG_NTFS) {
#ifdef WITH_NTFS_3G
if ((extract_flags & (WIMLIB_EXTRACT_FLAG_SYMLINK | WIMLIB_EXTRACT_FLAG_HARDLINK))) {
"directly to a NTFS volume");
return WIMLIB_ERR_INVALID_PARAM;
}
+ if (extract_flags & WIMLIB_EXTRACT_FLAG_UNIX_DATA) {
+ ERROR("Cannot restore UNIX-specific data in the NTFS extraction mode");
+ return WIMLIB_ERR_INVALID_PARAM;
+ }
#else
ERROR("wimlib was compiled without support for NTFS-3g, so");
ERROR("we cannot apply a WIM image directly to a NTFS volume");
git://wimlib.net / wimlib / blobdiff