-
-/* Replacements for functions needed specifically by the 'imagex' program in
- * Windows native builds; also, Windows-specific code to acquire and release
- * privileges needed to backup and restore files */
+/* Windows-specific code for wimlib-imagex. */
#ifndef __WIN32__
# error "This file contains Windows code"
#endif
#include "imagex-win32.h"
-#include <windows.h>
-#include <errno.h>
-#include <string.h>
#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <io.h>
#include <stdio.h>
+#include <string.h>
+#include <windows.h>
-/* Replacement for glob() in Windows native builds. */
-int glob(const char *pattern, int flags,
- int (*errfunc)(const char *epath, int eerrno),
- glob_t *pglob)
+/* Replacement for glob() in Windows native builds that operates on wide
+ * characters. */
+int
+win32_wglob(const wchar_t *pattern, int flags,
+ int (*errfunc)(const wchar_t *epath, int eerrno),
+ glob_t *pglob)
{
- WIN32_FIND_DATA dat;
+ WIN32_FIND_DATAW dat;
DWORD err;
HANDLE hFind;
int ret;
size_t nspaces;
+ const wchar_t *backslash, *end_slash;
+ size_t prefix_len;
+
+ backslash = wcsrchr(pattern, L'\\');
+ end_slash = wcsrchr(pattern, L'/');
+
+ if (backslash > end_slash)
+ end_slash = backslash;
+
+ if (end_slash)
+ prefix_len = end_slash - pattern + 1;
+ else
+ prefix_len = 0;
+
/* This function does not support all functionality of the POSIX glob(),
* so make sure the parameters are consistent with supported
* functionality. */
assert((flags & GLOB_ERR) == GLOB_ERR);
assert((flags & ~(GLOB_NOSORT | GLOB_ERR)) == 0);
- hFind = FindFirstFileA(pattern, &dat);
+ hFind = FindFirstFileW(pattern, &dat);
if (hFind == INVALID_HANDLE_VALUE) {
err = GetLastError();
if (err == ERROR_FILE_NOT_FOUND) {
pglob->gl_pathv = NULL;
nspaces = 0;
do {
- char *filename;
+ wchar_t *path;
if (pglob->gl_pathc == nspaces) {
size_t new_nspaces;
- char **pathv;
+ wchar_t **pathv;
new_nspaces = nspaces * 2 + 1;
pathv = realloc(pglob->gl_pathv,
pglob->gl_pathv = pathv;
nspaces = new_nspaces;
}
- filename = strdup(dat.cFileName);
- if (!filename)
+ size_t filename_len = wcslen(dat.cFileName);
+ size_t len_needed = prefix_len + filename_len;
+
+ path = malloc((len_needed + 1) * sizeof(wchar_t));
+ if (!path)
goto oom;
- pglob->gl_pathv[pglob->gl_pathc++] = filename;
- } while (FindNextFileA(hFind, &dat));
+
+ wmemcpy(path, pattern, prefix_len);
+ wmemcpy(path + prefix_len, dat.cFileName, filename_len + 1);
+ pglob->gl_pathv[pglob->gl_pathc++] = path;
+ } while (FindNextFileW(hFind, &dat));
err = GetLastError();
CloseHandle(hFind);
if (err == ERROR_NO_MORE_FILES) {
return ret;
}
-void globfree(glob_t *pglob)
+void
+globfree(glob_t *pglob)
{
size_t i;
for (i = 0; i < pglob->gl_pathc; i++)
free(pglob->gl_pathv[i]);
- free(pglob->gl_pathv[i]);
+ free(pglob->gl_pathv);
}
-static bool
-win32_modify_privilege(const char *privilege, bool enable)
+/* Convert a string from the "current Windows codepage" to UTF-16LE. */
+wchar_t *
+win32_mbs_to_wcs(const char *mbs, size_t mbs_nbytes, size_t *num_wchars_ret)
{
- HANDLE hToken;
- LUID luid;
- TOKEN_PRIVILEGES newState;
- bool ret = false;
-
- if (!OpenProcessToken(GetCurrentProcess(),
- TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY,
- &hToken))
- {
- goto out;
+ if (mbs_nbytes > INT_MAX) {
+ fwprintf(stderr, L"ERROR: too much data (%zu bytes)!\n",
+ mbs_nbytes);
+ return NULL;
}
-
- if (!LookupPrivilegeValue(NULL, privilege, &luid)) {
- goto out;
+ if (mbs_nbytes == 0) {
+ *num_wchars_ret = 0;
+ return (wchar_t*)mbs;
}
-
- newState.PrivilegeCount = 1;
- newState.Privileges[0].Luid = luid;
- newState.Privileges[0].Attributes = (enable ? SE_PRIVILEGE_ENABLED : 0);
- ret = AdjustTokenPrivileges(hToken, FALSE, &newState, 0, NULL, NULL);
- CloseHandle(hToken);
-out:
- if (!ret) {
- fprintf(stderr, "WARNING: Failed to %s privilege %s\n",
- enable ? "enable" : "disable", privilege);
- fprintf(stderr,
- "WARNING: The program will continue, "
- "but if permission issues are\n"
- "encountered, you may need to run "
- "this program as the administrator\n");
+ int len = MultiByteToWideChar(CP_ACP,
+ MB_ERR_INVALID_CHARS,
+ mbs,
+ mbs_nbytes,
+ NULL,
+ 0);
+ if (len <= 0)
+ goto out_invalid;
+ wchar_t *wcs = malloc(len * sizeof(wchar_t));
+ if (!wcs) {
+ fwprintf(stderr, L"ERROR: out of memory!\n");
+ return NULL;
}
- return ret;
-}
-
-static void
-win32_modify_capture_privileges(bool enable)
-{
- win32_modify_privilege(SE_BACKUP_NAME, enable);
- win32_modify_privilege(SE_SECURITY_NAME, enable);
-}
-
-static void
-win32_modify_restore_privileges(bool enable)
-{
- win32_modify_privilege(SE_RESTORE_NAME, enable);
- win32_modify_privilege(SE_SECURITY_NAME, enable);
- win32_modify_privilege(SE_TAKE_OWNERSHIP_NAME, enable);
-}
-
-void
-win32_acquire_capture_privileges()
-{
- win32_modify_capture_privileges(true);
+ int len2 = MultiByteToWideChar(CP_ACP,
+ MB_ERR_INVALID_CHARS,
+ mbs,
+ mbs_nbytes,
+ wcs,
+ len);
+ if (len2 != len) {
+ free(wcs);
+ goto out_invalid;
+ }
+ *num_wchars_ret = len;
+ return wcs;
+out_invalid:
+ fwprintf(stderr,
+L"ERROR: Invalid multi-byte string in the text file you provided as input!\n"
+L" Maybe try converting your text file to UTF-16LE?\n"
+ );
+ return NULL;
}
-void
-win32_release_capture_privileges()
+static inline bool
+is_path_separator(wchar_t c)
{
- win32_modify_capture_privileges(false);
+ return c == L'/' || c == L'\\';
}
-void
-win32_acquire_restore_privileges()
+/* basename() (modifying, trailing-slash stripping version) for wide-character
+ * strings. Understands both forward and backward slashes. */
+wchar_t *
+win32_wbasename(wchar_t *path)
{
- win32_modify_restore_privileges(true);
+ wchar_t *p = wcschr(path, L'\0');
+
+ p--;
+ while (p >= path && is_path_separator(*p))
+ *p-- = '\0';
+ while (p >= path && !is_path_separator(*p))
+ p--;
+ p++;
+ return p;
}
-void
-win32_release_restore_privileges()
+/* Set a file descriptor to binary mode. */
+void set_fd_to_binary_mode(int fd)
{
- win32_modify_restore_privileges(false);
+ _setmode(fd, _O_BINARY);
}
git://wimlib.net / wimlib / blobdiff