X-Git-Url: https://wimlib.net/git/?p=wimlib;a=blobdiff_plain;f=programs%2Fimagex-win32.c;h=a0cbc33dec91fd5d3c648d2ccae3fd16ed3203fd;hp=0fe04399e8fc4b603faad77bb2ca563ede25a733;hb=b348831df3fcf7d8eb66d35e4d0cf8434e788473;hpb=782d531f37b8548e8b28d28bc8e4e07d6be41944 diff --git a/programs/imagex-win32.c b/programs/imagex-win32.c index 0fe04399..a0cbc33d 100644 --- a/programs/imagex-win32.c +++ b/programs/imagex-win32.c @@ -1,21 +1,20 @@ - -/* 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 -#include -#include #include +#include +#include +#include #include +#include +#include /* Replacement for glob() in Windows native builds that operates on wide - * characters. */ + * characters. */ int win32_wglob(const wchar_t *pattern, int flags, int (*errfunc)(const wchar_t *epath, int eerrno), @@ -81,7 +80,7 @@ win32_wglob(const wchar_t *pattern, int flags, size_t filename_len = wcslen(dat.cFileName); size_t len_needed = prefix_len + filename_len; - path = malloc(len_needed + sizeof(wchar_t)); + path = malloc((len_needed + 1) * sizeof(wchar_t)); if (!path) goto oom; @@ -119,80 +118,7 @@ globfree(glob_t *pglob) free(pglob->gl_pathv); } -static bool -win32_modify_privilege(const wchar_t *privilege, bool enable) -{ - HANDLE hToken; - LUID luid; - TOKEN_PRIVILEGES newState; - bool ret = false; - - if (!OpenProcessToken(GetCurrentProcess(), - TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, - &hToken)) - goto out; - - if (!LookupPrivilegeValueW(NULL, privilege, &luid)) - goto out; - - 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) { - fwprintf(stderr, L"WARNING: Failed to %ls privilege %s\n", - enable ? L"enable" : L"disable", privilege); - fwprintf(stderr, - L"WARNING: The program will continue, " - L"but if permission issues are\n" - L"encountered, you may need to run " - L"this program as the administrator\n"); - } - 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); -} - -void -win32_release_capture_privileges() -{ - win32_modify_capture_privileges(false); -} - -void -win32_acquire_restore_privileges() -{ - win32_modify_restore_privileges(true); -} - -void -win32_release_restore_privileges() -{ - win32_modify_restore_privileges(false); -} - -/* Convert a string from the "current Windows codepage" to UTF-16LE. */ +/* 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) { @@ -245,7 +171,7 @@ is_path_separator(wchar_t c) } /* basename() (modifying, trailing-slash stripping version) for wide-character - * strings. */ + * strings. Understands both forward and backward slashes. */ wchar_t * win32_wbasename(wchar_t *path) { @@ -260,3 +186,8 @@ win32_wbasename(wchar_t *path) return p; } +/* Set a file descriptor to binary mode. */ +void set_fd_to_binary_mode(int fd) +{ + _setmode(fd, _O_BINARY); +}