// Helper function to restore the timestamp on a directory static void __inline set_directory_timestamp(char* path, LPFILETIME creation, LPFILETIME last_access, LPFILETIME modify) { HANDLE dir_handle = CreateFileU(path, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL); if ((dir_handle == INVALID_HANDLE_VALUE) || (!SetFileTime(dir_handle, creation, last_access, modify))) uprintf(" Could not set timestamp for directory '%s': %s", path, WindowsErrorString()); safe_closehandle(dir_handle); }
int64_t ExtractISOFile(const char* iso, const char* iso_file, const char* dest_file) { size_t i; ssize_t read_size; int64_t file_length, r = 0; char buf[UDF_BLOCKSIZE]; DWORD buf_size, wr_size; BOOL s; iso9660_t* p_iso = NULL; udf_t* p_udf = NULL; udf_dirent_t *p_udf_root = NULL, *p_udf_file = NULL; iso9660_stat_t *p_statbuf = NULL; lsn_t lsn; HANDLE file_handle = INVALID_HANDLE_VALUE; file_handle = CreateFileU(dest_file, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); if (file_handle == INVALID_HANDLE_VALUE) { uprintf(" Unable to create file %s: %s\n", dest_file, WindowsErrorString()); goto out; } /* First try to open as UDF - fallback to ISO if it failed */ p_udf = udf_open(iso); if (p_udf == NULL) goto try_iso; p_udf_root = udf_get_root(p_udf, true, 0); if (p_udf_root == NULL) { uprintf("Couldn't locate UDF root directory\n"); goto out; } p_udf_file = udf_fopen(p_udf_root, iso_file); if (!p_udf_file) { uprintf("Couldn't locate file %s in ISO image\n", iso_file); goto out; } file_length = udf_get_file_length(p_udf_file); while (file_length > 0) { memset(buf, 0, UDF_BLOCKSIZE); read_size = udf_read_block(p_udf_file, buf, 1); if (read_size < 0) { uprintf("Error reading UDF file %s\n", iso_file); goto out; } buf_size = (DWORD)MIN(file_length, read_size); s = WriteFile(file_handle, buf, buf_size, &wr_size, NULL); if ((!s) || (buf_size != wr_size)) { uprintf(" Error writing file %s: %s\n", dest_file, WindowsErrorString()); goto out; } file_length -= read_size; r += read_size; } goto out; try_iso: p_iso = iso9660_open(iso); if (p_iso == NULL) { uprintf("Unable to open image '%s'.\n", iso); goto out; } p_statbuf = iso9660_ifs_stat_translate(p_iso, iso_file); if (p_statbuf == NULL) { uprintf("Could not get ISO-9660 file information for file %s\n", iso_file); goto out; } file_length = p_statbuf->size; for (i = 0; file_length > 0; i++) { memset(buf, 0, ISO_BLOCKSIZE); lsn = p_statbuf->lsn + (lsn_t)i; if (iso9660_iso_seek_read(p_iso, buf, lsn, 1) != ISO_BLOCKSIZE) { uprintf(" Error reading ISO9660 file %s at LSN %lu\n", iso_file, (long unsigned int)lsn); goto out; } buf_size = (DWORD)MIN(file_length, ISO_BLOCKSIZE); s = WriteFile(file_handle, buf, buf_size, &wr_size, NULL); if ((!s) || (buf_size != wr_size)) { uprintf(" Error writing file %s: %s\n", dest_file, WindowsErrorString()); goto out; } file_length -= ISO_BLOCKSIZE; r += ISO_BLOCKSIZE; } out: safe_closehandle(file_handle); if (p_statbuf != NULL) safe_free(p_statbuf->rr.psz_symlink); safe_free(p_statbuf); if (p_udf_root != NULL) udf_dirent_free(p_udf_root); if (p_udf_file != NULL) udf_dirent_free(p_udf_file); if (p_iso != NULL) iso9660_close(p_iso); if (p_udf != NULL) udf_close(p_udf); return r; }
// Returns 0 on success, nonzero on error static int iso_extract_files(iso9660_t* p_iso, const char *psz_path) { HANDLE file_handle = NULL; DWORD buf_size, wr_size, err; BOOL s, is_syslinux_cfg, is_old_c32[NB_OLD_C32], is_symlink; int i_length, r = 1; char tmp[128], psz_fullpath[1024], *psz_basename; const char *psz_iso_name = &psz_fullpath[strlen(psz_extract_dir)]; unsigned char buf[ISO_BLOCKSIZE]; CdioListNode_t* p_entnode; iso9660_stat_t *p_statbuf; CdioList_t* p_entlist; size_t i, j, nul_pos; lsn_t lsn; int64_t i_file_length; if ((p_iso == NULL) || (psz_path == NULL)) return 1; i_length = _snprintf(psz_fullpath, sizeof(psz_fullpath), "%s%s/", psz_extract_dir, psz_path); if (i_length < 0) return 1; psz_basename = &psz_fullpath[i_length]; p_entlist = iso9660_ifs_readdir(p_iso, psz_path); if (!p_entlist) { uprintf("Could not access directory %s\n", psz_path); return 1; } _CDIO_LIST_FOREACH(p_entnode, p_entlist) { if (FormatStatus) goto out; p_statbuf = (iso9660_stat_t*) _cdio_list_node_data(p_entnode); // Eliminate . and .. entries if ( (strcmp(p_statbuf->filename, ".") == 0) || (strcmp(p_statbuf->filename, "..") == 0) ) continue; // Rock Ridge requires an exception is_symlink = FALSE; if ((p_statbuf->rr.b3_rock == yep) && enable_rockridge) { safe_strcpy(psz_basename, sizeof(psz_fullpath)-i_length-1, p_statbuf->filename); if (safe_strlen(p_statbuf->filename) > 64) iso_report.has_long_filename = TRUE; // libcdio has a memleak for Rock Ridge symlinks. It doesn't look like there's an easy fix there as // a generic list that's unaware of RR extensions is being used, so we prevent that memleak ourselves is_symlink = (p_statbuf->rr.psz_symlink != NULL); if (is_symlink) iso_report.has_symlinks = TRUE; if (scan_only) safe_free(p_statbuf->rr.psz_symlink); } else { iso9660_name_translate_ext(p_statbuf->filename, psz_basename, i_joliet_level); } if (p_statbuf->type == _STAT_DIR) { if (!scan_only) _mkdirU(psz_fullpath); if (iso_extract_files(p_iso, psz_iso_name)) goto out; } else { i_file_length = p_statbuf->size; if (check_iso_props(psz_path, &is_syslinux_cfg, is_old_c32, i_file_length, psz_basename, psz_fullpath)) { continue; } // Replace slashes with backslashes and append the size to the path for UI display nul_pos = safe_strlen(psz_fullpath); for (i=0; i<nul_pos; i++) if (psz_fullpath[i] == '/') psz_fullpath[i] = '\\'; safe_sprintf(&psz_fullpath[nul_pos], 24, " (%s)", SizeToHumanReadable(i_file_length, TRUE, FALSE)); uprintf("Extracting: %s\n", psz_fullpath); safe_sprintf(&psz_fullpath[nul_pos], 24, " (%s)", SizeToHumanReadable(i_file_length, FALSE, FALSE)); SetWindowTextU(hISOFileName, psz_fullpath); // ISO9660 cannot handle backslashes for (i=0; i<nul_pos; i++) if (psz_fullpath[i] == '\\') psz_fullpath[i] = '/'; psz_fullpath[nul_pos] = 0; for (i=0; i<NB_OLD_C32; i++) { if (is_old_c32[i] && use_own_c32[i]) { static_sprintf(tmp, "%s/syslinux-%s/%s", FILES_DIR, embedded_sl_version_str[0], old_c32_name[i]); if (CopyFileA(tmp, psz_fullpath, FALSE)) { uprintf(" Replaced with local version\n"); break; } uprintf(" Could not replace file: %s\n", WindowsErrorString()); } } if (i < NB_OLD_C32) continue; if (sanitize_filename(psz_fullpath)) uprintf(" File name sanitized to '%s'\n", psz_fullpath); if (is_symlink) { if (i_file_length == 0) uprintf(" Ignoring Rock Ridge symbolic link to '%s'\n", p_statbuf->rr.psz_symlink); safe_free(p_statbuf->rr.psz_symlink); } file_handle = CreateFileU(psz_fullpath, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); if (file_handle == INVALID_HANDLE_VALUE) { err = GetLastError(); uprintf(" Unable to create file: %s\n", WindowsErrorString()); if ((err == ERROR_ACCESS_DENIED) && (safe_strcmp(&psz_fullpath[3], autorun_name) == 0)) uprintf(stupid_antivirus); else goto out; } else for (i=0; i_file_length>0; i++) { if (FormatStatus) goto out; memset(buf, 0, ISO_BLOCKSIZE); lsn = p_statbuf->lsn + (lsn_t)i; if (iso9660_iso_seek_read(p_iso, buf, lsn, 1) != ISO_BLOCKSIZE) { uprintf(" Error reading ISO9660 file %s at LSN %lu\n", psz_iso_name, (long unsigned int)lsn); goto out; } buf_size = (DWORD)MIN(i_file_length, ISO_BLOCKSIZE); for (j=0; j<WRITE_RETRIES; j++) { ISO_BLOCKING(s = WriteFile(file_handle, buf, buf_size, &wr_size, NULL)); if ((!s) || (buf_size != wr_size)) { uprintf(" Error writing file: %s", WindowsErrorString()); if (j < WRITE_RETRIES-1) uprintf(" RETRYING...\n"); } else { break; } } if (j >= WRITE_RETRIES) goto out; i_file_length -= ISO_BLOCKSIZE; if (nb_blocks++ % PROGRESS_THRESHOLD == 0) { SendMessage(hISOProgressBar, PBM_SETPOS, (WPARAM)((MAX_PROGRESS*nb_blocks)/total_blocks), 0); UpdateProgress(OP_DOS, 100.0f*nb_blocks/total_blocks); } } ISO_BLOCKING(safe_closehandle(file_handle)); if (is_syslinux_cfg) { if (replace_in_token_data(psz_fullpath, "append", iso_report.label, iso_report.usb_label, TRUE) != NULL) uprintf("Patched %s: '%s' -> '%s'\n", psz_fullpath, iso_report.label, iso_report.usb_label); } } } r = 0; out: ISO_BLOCKING(safe_closehandle(file_handle)); _cdio_list_free(p_entlist, true); return r; }
// Returns 0 on success, nonzero on error static int udf_extract_files(udf_t *p_udf, udf_dirent_t *p_udf_dirent, const char *psz_path) { HANDLE file_handle = NULL; DWORD buf_size, wr_size, err; BOOL r, is_syslinux_cfg, is_old_c32[NB_OLD_C32]; int i_length; size_t i, nul_pos; char tmp[128], *psz_fullpath = NULL; const char* psz_basename; udf_dirent_t *p_udf_dirent2; uint8_t buf[UDF_BLOCKSIZE]; int64_t i_read, i_file_length; if ((p_udf_dirent == NULL) || (psz_path == NULL)) return 1; while ((p_udf_dirent = udf_readdir(p_udf_dirent)) != NULL) { if (FormatStatus) goto out; psz_basename = udf_get_filename(p_udf_dirent); if (strlen(psz_basename) == 0) continue; i_length = (int)(3 + strlen(psz_path) + strlen(psz_basename) + strlen(psz_extract_dir) + 24); psz_fullpath = (char*)calloc(sizeof(char), i_length); if (psz_fullpath == NULL) { uprintf("Error allocating file name\n"); goto out; } i_length = _snprintf(psz_fullpath, i_length, "%s%s/%s", psz_extract_dir, psz_path, psz_basename); if (i_length < 0) { goto out; } if (udf_is_dir(p_udf_dirent)) { if (!scan_only) _mkdirU(psz_fullpath); p_udf_dirent2 = udf_opendir(p_udf_dirent); if (p_udf_dirent2 != NULL) { if (udf_extract_files(p_udf, p_udf_dirent2, &psz_fullpath[strlen(psz_extract_dir)])) goto out; } } else { i_file_length = udf_get_file_length(p_udf_dirent); if (check_iso_props(psz_path, &is_syslinux_cfg, is_old_c32, i_file_length, psz_basename, psz_fullpath)) { safe_free(psz_fullpath); continue; } // Replace slashes with backslashes and append the size to the path for UI display nul_pos = safe_strlen(psz_fullpath); for (i=0; i<nul_pos; i++) if (psz_fullpath[i] == '/') psz_fullpath[i] = '\\'; safe_sprintf(&psz_fullpath[nul_pos], 24, " (%s)", SizeToHumanReadable(i_file_length, TRUE, FALSE)); uprintf("Extracting: %s\n", psz_fullpath); safe_sprintf(&psz_fullpath[nul_pos], 24, " (%s)", SizeToHumanReadable(i_file_length, FALSE, FALSE)); SetWindowTextU(hISOFileName, psz_fullpath); // Remove the appended size for extraction psz_fullpath[nul_pos] = 0; for (i=0; i<NB_OLD_C32; i++) { if (is_old_c32[i] && use_own_c32[i]) { static_sprintf(tmp, "%s/syslinux-%s/%s", FILES_DIR, embedded_sl_version_str[0], old_c32_name[i]); if (CopyFileA(tmp, psz_fullpath, FALSE)) { uprintf(" Replaced with local version\n"); break; } uprintf(" Could not replace file: %s\n", WindowsErrorString()); } } if (i < NB_OLD_C32) continue; if (sanitize_filename(psz_fullpath)) uprintf(" File name sanitized to '%s'\n", psz_fullpath); file_handle = CreateFileU(psz_fullpath, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); if (file_handle == INVALID_HANDLE_VALUE) { err = GetLastError(); uprintf(" Unable to create file: %s\n", WindowsErrorString()); if ((err == ERROR_ACCESS_DENIED) && (safe_strcmp(&psz_fullpath[3], autorun_name) == 0)) uprintf(stupid_antivirus); else goto out; } else while (i_file_length > 0) { if (FormatStatus) goto out; memset(buf, 0, UDF_BLOCKSIZE); i_read = udf_read_block(p_udf_dirent, buf, 1); if (i_read < 0) { uprintf(" Error reading UDF file %s\n", &psz_fullpath[strlen(psz_extract_dir)]); goto out; } buf_size = (DWORD)MIN(i_file_length, i_read); for (i=0; i<WRITE_RETRIES; i++) { ISO_BLOCKING(r = WriteFile(file_handle, buf, buf_size, &wr_size, NULL)); if ((!r) || (buf_size != wr_size)) { uprintf(" Error writing file: %s", WindowsErrorString()); if (i < WRITE_RETRIES-1) uprintf(" RETRYING...\n"); } else { break; } } if (i >= WRITE_RETRIES) goto out; i_file_length -= i_read; if (nb_blocks++ % PROGRESS_THRESHOLD == 0) { SendMessage(hISOProgressBar, PBM_SETPOS, (WPARAM)((MAX_PROGRESS*nb_blocks)/total_blocks), 0); UpdateProgress(OP_DOS, 100.0f*nb_blocks/total_blocks); } } // If you have a fast USB 3.0 device, the default Windows buffering does an // excellent job at compensating for our small blocks read/writes to max out the // device's bandwidth. // The drawback however is with cancellation. With a large file, CloseHandle() // may take forever to complete and is not interruptible. We try to detect this. ISO_BLOCKING(safe_closehandle(file_handle)); if (is_syslinux_cfg) { // Workaround for isolinux config files requiring an ISO label for kernel // append that may be different from our USB label. if (replace_in_token_data(psz_fullpath, "append", iso_report.label, iso_report.usb_label, TRUE) != NULL) uprintf("Patched %s: '%s' -> '%s'\n", psz_fullpath, iso_report.label, iso_report.usb_label); } } safe_free(psz_fullpath); } return 0; out: if (p_udf_dirent != NULL) udf_dirent_free(p_udf_dirent); ISO_BLOCKING(safe_closehandle(file_handle)); safe_free(psz_fullpath); return 1; }
/* * Download a file from an URL * Mostly taken from http://support.microsoft.com/kb/234913 * If hProgressDialog is not NULL, this function will send INIT and EXIT messages * to the dialog in question, with WPARAM being set to nonzero for EXIT on success * and also attempt to indicate progress using an IDC_PROGRESS control */ DWORD DownloadFile(const char* url, const char* file, HWND hProgressDialog) { HWND hProgressBar = NULL; BOOL r = FALSE; LONG progress_style; DWORD dwFlags, dwSize, dwWritten, dwDownloaded, dwTotalSize; DWORD DownloadStatus; HANDLE hFile = INVALID_HANDLE_VALUE; const char* accept_types[] = {"*/*\0", NULL}; unsigned char buf[DOWNLOAD_BUFFER_SIZE]; char agent[64], hostname[64], urlpath[128], msg[MAX_PATH]; HINTERNET hSession = NULL, hConnection = NULL, hRequest = NULL; URL_COMPONENTSA UrlParts = {sizeof(URL_COMPONENTSA), NULL, 1, (INTERNET_SCHEME)0, hostname, sizeof(hostname), 0, NULL, 1, urlpath, sizeof(urlpath), NULL, 1}; size_t last_slash; int i; DownloadStatus = 404; if (hProgressDialog != NULL) { // Use the progress control provided, if any hProgressBar = GetDlgItem(hProgressDialog, IDC_PROGRESS); if (hProgressBar != NULL) { progress_style = GetWindowLong(hProgressBar, GWL_STYLE); SetWindowLong(hProgressBar, GWL_STYLE, progress_style & (~PBS_MARQUEE)); SendMessage(hProgressBar, PBM_SETPOS, 0, 0); } SendMessage(hProgressDialog, UM_DOWNLOAD_INIT, 0, 0); } if (file == NULL) goto out; for (last_slash = safe_strlen(file); last_slash != 0; last_slash--) { if ((file[last_slash] == '/') || (file[last_slash] == '\\')) { last_slash++; break; } } static_sprintf(msg, "Downloading %s: Connecting...", file); print_status(0, FALSE, msg); dprintf("Downloading %s from %s\n", file, url); if ( (!InternetCrackUrlA(url, (DWORD)safe_strlen(url), 0, &UrlParts)) || (UrlParts.lpszHostName == NULL) || (UrlParts.lpszUrlPath == NULL)) { dprintf("Unable to decode URL: %s\n", WinInetErrorString()); goto out; } hostname[sizeof(hostname)-1] = 0; // Open an Internet session for (i=5; (i>0) && (!InternetGetConnectedState(&dwFlags, 0)); i--) { Sleep(1000); } if (i <= 0) { // http://msdn.microsoft.com/en-us/library/windows/desktop/aa384702.aspx is wrong... SetLastError(ERROR_INTERNET_NOT_INITIALIZED); dprintf("Network is unavailable: %s\n", WinInetErrorString()); goto out; } static_sprintf(agent, APPLICATION_NAME "/%d.%d.%d (Windows NT %d.%d%s)", application_version[0], application_version[1], application_version[2], nWindowsVersion>>4, nWindowsVersion&0x0F, is_x64()?"; WOW64":""); hSession = InternetOpenA(agent, INTERNET_OPEN_TYPE_PRECONFIG, NULL, NULL, 0); if (hSession == NULL) { dprintf("Could not open Internet session: %s\n", WinInetErrorString()); goto out; } hConnection = InternetConnectA(hSession, UrlParts.lpszHostName, UrlParts.nPort, NULL, NULL, INTERNET_SERVICE_HTTP, 0, (DWORD_PTR)NULL); if (hConnection == NULL) { dprintf("Could not connect to server %s:%d: %s\n", UrlParts.lpszHostName, UrlParts.nPort, WinInetErrorString()); goto out; } hRequest = HttpOpenRequestA(hConnection, "GET", UrlParts.lpszUrlPath, NULL, NULL, accept_types, INTERNET_FLAG_IGNORE_REDIRECT_TO_HTTP|INTERNET_FLAG_IGNORE_REDIRECT_TO_HTTPS| INTERNET_FLAG_NO_COOKIES|INTERNET_FLAG_NO_UI|INTERNET_FLAG_NO_CACHE_WRITE|INTERNET_FLAG_HYPERLINK| ((UrlParts.nScheme==INTERNET_SCHEME_HTTPS)?INTERNET_FLAG_SECURE:0), (DWORD_PTR)NULL); if (hRequest == NULL) { dprintf("Could not open URL %s: %s\n", url, WinInetErrorString()); goto out; } if (!HttpSendRequestA(hRequest, NULL, 0, NULL, 0)) { dprintf("Unable to send request: %s\n", WinInetErrorString()); goto out; } // Get the file size dwSize = sizeof(DownloadStatus); HttpQueryInfoA(hRequest, HTTP_QUERY_STATUS_CODE|HTTP_QUERY_FLAG_NUMBER, (LPVOID)&DownloadStatus, &dwSize, NULL); if (DownloadStatus != 200) { error_code = ERROR_SEVERITY_ERROR|ERROR_INTERNET_ITEM_NOT_FOUND; dprintf("Unable to access file: %d\n", DownloadStatus); goto out; } dwSize = sizeof(dwTotalSize); if (!HttpQueryInfoA(hRequest, HTTP_QUERY_CONTENT_LENGTH|HTTP_QUERY_FLAG_NUMBER, (LPVOID)&dwTotalSize, &dwSize, NULL)) { dprintf("Unable to retrieve file length: %s\n", WinInetErrorString()); goto out; } dprintf("File length: %d bytes\n", dwTotalSize); hFile = CreateFileU(file, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); if (hFile == INVALID_HANDLE_VALUE) { dprintf("Unable to create file '%s': %s\n", &file[last_slash], WinInetErrorString()); goto out; } // Keep checking for data until there is nothing left. dwSize = 0; while (1) { if (IS_ERROR(error_code)) goto out; if (!InternetReadFile(hRequest, buf, sizeof(buf), &dwDownloaded) || (dwDownloaded == 0)) break; dwSize += dwDownloaded; SendMessage(hProgressBar, PBM_SETPOS, (WPARAM)(MAX_PROGRESS*((1.0f*dwSize)/(1.0f*dwTotalSize))), 0); static_sprintf(msg, "Downloading: %0.1f%%", (100.0f*dwSize)/(1.0f*dwTotalSize)); print_status(0, FALSE, msg); if (!WriteFile(hFile, buf, dwDownloaded, &dwWritten, NULL)) { dprintf("Error writing file '%s': %s\n", &file[last_slash], WinInetErrorString()); goto out; } else if (dwDownloaded != dwWritten) { dprintf("Error writing file '%s': Only %d/%d bytes written\n", dwWritten, dwDownloaded); goto out; } } if (dwSize != dwTotalSize) { dprintf("Could not download complete file - read: %d bytes, expected: %d bytes\n", dwSize, dwTotalSize); error_code = ERROR_SEVERITY_ERROR|ERROR_WRITE_FAULT; goto out; } else { r = TRUE; dprintf("Successfully downloaded '%s'\n", &file[last_slash]); } out: if (hProgressDialog != NULL) SendMessage(hProgressDialog, UM_DOWNLOAD_EXIT, (WPARAM)r, 0); if (hFile != INVALID_HANDLE_VALUE) { // Force a flush - May help with the PKI API trying to process downloaded updates too early... FlushFileBuffers(hFile); CloseHandle(hFile); } if (!r) { if (file != NULL) _unlinkU(file); print_status(0, FALSE, "Failed to download file."); SetLastError(error_code); MessageBoxU(hMainDialog, WinInetErrorString(), "File download", MB_OK|MB_ICONERROR); } if (hRequest) InternetCloseHandle(hRequest); if (hConnection) InternetCloseHandle(hConnection); if (hSession) InternetCloseHandle(hSession); return r?dwSize:0; }
/* * read or write I/O to a file * buffer is allocated by the procedure. path is UTF-8 */ BOOL FileIo(BOOL save, char* path, char** buffer, DWORD* size) { SECURITY_ATTRIBUTES s_attr, *ps = NULL; SECURITY_DESCRIPTOR s_desc; PSID sid = NULL; HANDLE handle; BOOL r; BOOL ret = FALSE; // Change the owner from admin to regular user sid = GetSid(); if ( (sid != NULL) && InitializeSecurityDescriptor(&s_desc, SECURITY_DESCRIPTOR_REVISION) && SetSecurityDescriptorOwner(&s_desc, sid, FALSE) ) { s_attr.nLength = sizeof(SECURITY_ATTRIBUTES); s_attr.bInheritHandle = FALSE; s_attr.lpSecurityDescriptor = &s_desc; ps = &s_attr; } else { dprintf("could not set security descriptor: %s", WindowsErrorString()); } if (!save) { *buffer = NULL; } handle = CreateFileU(path, save?GENERIC_WRITE:GENERIC_READ, FILE_SHARE_READ, ps, save?CREATE_ALWAYS:OPEN_EXISTING, 0, NULL); if (handle == INVALID_HANDLE_VALUE) { dprintf("Could not %s file '%s'", save?"create":"open", path); goto out; } if (save) { r = WriteFile(handle, *buffer, *size, size, NULL); } else { *size = GetFileSize(handle, NULL); *buffer = (char*)malloc(*size); if (*buffer == NULL) { dprintf("Could not allocate buffer for reading file"); goto out; } r = ReadFile(handle, *buffer, *size, size, NULL); } if (!r) { dprintf("I/O Error: %s", WindowsErrorString()); goto out; } dsprintf("%s '%s'", save?"Saved file as":"Opened file", path); ret = TRUE; out: CloseHandle(handle); if (!ret) { // Only leave a buffer allocated if successful *size = 0; if (!save) { safe_free(*buffer); } } return ret; }
// Returns 0 on success, nonzero on error static int udf_extract_files(udf_t *p_udf, udf_dirent_t *p_udf_dirent, const char *psz_path) { HANDLE file_handle = NULL; DWORD buf_size, wr_size, err; EXTRACT_PROPS props; BOOL r, is_identical; int i_length; size_t i; char tmp[128], *psz_fullpath = NULL, *psz_sanpath = NULL; const char* psz_basename; udf_dirent_t *p_udf_dirent2; uint8_t buf[UDF_BLOCKSIZE]; int64_t i_read, i_file_length; if ((p_udf_dirent == NULL) || (psz_path == NULL)) return 1; while ((p_udf_dirent = udf_readdir(p_udf_dirent)) != NULL) { if (FormatStatus) goto out; psz_basename = udf_get_filename(p_udf_dirent); if (strlen(psz_basename) == 0) continue; i_length = (int)(3 + strlen(psz_path) + strlen(psz_basename) + strlen(psz_extract_dir) + 24); psz_fullpath = (char*)calloc(sizeof(char), i_length); if (psz_fullpath == NULL) { uprintf("Error allocating file name\n"); goto out; } i_length = _snprintf(psz_fullpath, i_length, "%s%s/%s", psz_extract_dir, psz_path, psz_basename); if (i_length < 0) { goto out; } if (udf_is_dir(p_udf_dirent)) { if (!scan_only) { psz_sanpath = sanitize_filename(psz_fullpath, &is_identical); IGNORE_RETVAL(_mkdirU(psz_sanpath)); safe_free(psz_sanpath); } p_udf_dirent2 = udf_opendir(p_udf_dirent); if (p_udf_dirent2 != NULL) { if (udf_extract_files(p_udf, p_udf_dirent2, &psz_fullpath[strlen(psz_extract_dir)])) goto out; } } else { i_file_length = udf_get_file_length(p_udf_dirent); if (check_iso_props(psz_path, i_file_length, psz_basename, psz_fullpath, &props)) { safe_free(psz_fullpath); continue; } print_extracted_file(psz_fullpath, i_file_length); for (i=0; i<NB_OLD_C32; i++) { if (props.is_old_c32[i] && use_own_c32[i]) { static_sprintf(tmp, "%s/syslinux-%s/%s", FILES_DIR, embedded_sl_version_str[0], old_c32_name[i]); if (CopyFileA(tmp, psz_fullpath, FALSE)) { uprintf(" Replaced with local version\n"); break; } uprintf(" Could not replace file: %s\n", WindowsErrorString()); } } if (i < NB_OLD_C32) continue; psz_sanpath = sanitize_filename(psz_fullpath, &is_identical); if (!is_identical) uprintf(" File name sanitized to '%s'\n", psz_sanpath); file_handle = CreateFileU(psz_sanpath, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); if (file_handle == INVALID_HANDLE_VALUE) { err = GetLastError(); uprintf(" Unable to create file: %s\n", WindowsErrorString()); if ((err == ERROR_ACCESS_DENIED) && (safe_strcmp(&psz_sanpath[3], autorun_name) == 0)) uprintf(stupid_antivirus); else goto out; } else while (i_file_length > 0) { if (FormatStatus) goto out; memset(buf, 0, UDF_BLOCKSIZE); i_read = udf_read_block(p_udf_dirent, buf, 1); if (i_read < 0) { uprintf(" Error reading UDF file %s\n", &psz_fullpath[strlen(psz_extract_dir)]); goto out; } buf_size = (DWORD)MIN(i_file_length, i_read); for (i=0; i<WRITE_RETRIES; i++) { ISO_BLOCKING(r = WriteFile(file_handle, buf, buf_size, &wr_size, NULL)); if ((!r) || (buf_size != wr_size)) { uprintf(" Error writing file: %s", WindowsErrorString()); if (i < WRITE_RETRIES-1) uprintf(" RETRYING...\n"); } else { break; } } if (i >= WRITE_RETRIES) goto out; i_file_length -= i_read; if (nb_blocks++ % PROGRESS_THRESHOLD == 0) UpdateProgress(OP_DOS, 100.0f*nb_blocks/total_blocks); } // If you have a fast USB 3.0 device, the default Windows buffering does an // excellent job at compensating for our small blocks read/writes to max out the // device's bandwidth. // The drawback however is with cancellation. With a large file, CloseHandle() // may take forever to complete and is not interruptible. We try to detect this. ISO_BLOCKING(safe_closehandle(file_handle)); if (props.is_syslinux_cfg || props.is_grub_cfg) fix_config(psz_sanpath, psz_path, psz_basename, &props); safe_free(psz_sanpath); } safe_free(psz_fullpath); } return 0; out: if (p_udf_dirent != NULL) udf_dirent_free(p_udf_dirent); ISO_BLOCKING(safe_closehandle(file_handle)); safe_free(psz_fullpath); return 1; }
// Returns 0 on success, nonzero on error static int iso_extract_files(iso9660_t* p_iso, const char *psz_path) { HANDLE file_handle = NULL; DWORD buf_size, wr_size, err; EXTRACT_PROPS props; BOOL is_symlink, is_identical; int i_length, r = 1; char tmp[128], psz_fullpath[MAX_PATH], *psz_basename, *psz_sanpath; const char *psz_iso_name = &psz_fullpath[strlen(psz_extract_dir)]; unsigned char buf[ISO_BLOCKSIZE]; CdioListNode_t* p_entnode; iso9660_stat_t *p_statbuf; CdioList_t* p_entlist; size_t i; lsn_t lsn; int64_t i_file_length; if ((p_iso == NULL) || (psz_path == NULL)) return 1; i_length = _snprintf(psz_fullpath, sizeof(psz_fullpath), "%s%s/", psz_extract_dir, psz_path); if (i_length < 0) return 1; psz_basename = &psz_fullpath[i_length]; p_entlist = iso9660_ifs_readdir(p_iso, psz_path); if (!p_entlist) { uprintf("Could not access directory %s", psz_path); return 1; } _CDIO_LIST_FOREACH(p_entnode, p_entlist) { if (FormatStatus) goto out; p_statbuf = (iso9660_stat_t*) _cdio_list_node_data(p_entnode); // Eliminate . and .. entries if ( (strcmp(p_statbuf->filename, ".") == 0) || (strcmp(p_statbuf->filename, "..") == 0) ) continue; // Rock Ridge requires an exception is_symlink = FALSE; if ((p_statbuf->rr.b3_rock == yep) && enable_rockridge) { safe_strcpy(psz_basename, sizeof(psz_fullpath)-i_length-1, p_statbuf->filename); if (safe_strlen(p_statbuf->filename) > 64) img_report.has_long_filename = TRUE; // libcdio has a memleak for Rock Ridge symlinks. It doesn't look like there's an easy fix there as // a generic list that's unaware of RR extensions is being used, so we prevent that memleak ourselves is_symlink = (p_statbuf->rr.psz_symlink != NULL); if (is_symlink) img_report.has_symlinks = TRUE; if (scan_only) safe_free(p_statbuf->rr.psz_symlink); } else { iso9660_name_translate_ext(p_statbuf->filename, psz_basename, i_joliet_level); } if (p_statbuf->type == _STAT_DIR) { if (!scan_only) { psz_sanpath = sanitize_filename(psz_fullpath, &is_identical); IGNORE_RETVAL(_mkdirU(psz_sanpath)); if (preserve_timestamps) { LPFILETIME ft = to_filetime(mktime(&p_statbuf->tm)); set_directory_timestamp(psz_sanpath, ft, ft, ft); } safe_free(psz_sanpath); } if (iso_extract_files(p_iso, psz_iso_name)) goto out; } else { i_file_length = p_statbuf->size; if (check_iso_props(psz_path, i_file_length, psz_basename, psz_fullpath, &props)) { continue; } print_extracted_file(psz_fullpath, i_file_length); for (i=0; i<NB_OLD_C32; i++) { if (props.is_old_c32[i] && use_own_c32[i]) { static_sprintf(tmp, "%s/syslinux-%s/%s", FILES_DIR, embedded_sl_version_str[0], old_c32_name[i]); if (CopyFileU(tmp, psz_fullpath, FALSE)) { uprintf(" Replaced with local version %s", IsFileInDB(tmp)?"✓":"✗"); break; } uprintf(" Could not replace file: %s", WindowsErrorString()); } } if (i < NB_OLD_C32) continue; psz_sanpath = sanitize_filename(psz_fullpath, &is_identical); if (!is_identical) uprintf(" File name sanitized to '%s'", psz_sanpath); if (is_symlink) { if (i_file_length == 0) uprintf(" Ignoring Rock Ridge symbolic link to '%s'", p_statbuf->rr.psz_symlink); safe_free(p_statbuf->rr.psz_symlink); } file_handle = CreateFileU(psz_sanpath, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); if (file_handle == INVALID_HANDLE_VALUE) { err = GetLastError(); uprintf(" Unable to create file: %s", WindowsErrorString()); if ((err == ERROR_ACCESS_DENIED) && (safe_strcmp(&psz_sanpath[3], autorun_name) == 0)) uprintf(stupid_antivirus); else goto out; } else for (i=0; i_file_length>0; i++) { if (FormatStatus) goto out; memset(buf, 0, ISO_BLOCKSIZE); lsn = p_statbuf->lsn + (lsn_t)i; if (iso9660_iso_seek_read(p_iso, buf, lsn, 1) != ISO_BLOCKSIZE) { uprintf(" Error reading ISO9660 file %s at LSN %lu", psz_iso_name, (long unsigned int)lsn); goto out; } buf_size = (DWORD)MIN(i_file_length, ISO_BLOCKSIZE); ISO_BLOCKING(r = WriteFileWithRetry(file_handle, buf, buf_size, &wr_size, WRITE_RETRIES)); if (!r) { uprintf(" Error writing file: %s", WindowsErrorString()); goto out; } i_file_length -= ISO_BLOCKSIZE; if (nb_blocks++ % PROGRESS_THRESHOLD == 0) UpdateProgress(OP_DOS, 100.0f*nb_blocks/total_blocks); } if (preserve_timestamps) { LPFILETIME ft = to_filetime(mktime(&p_statbuf->tm)); if (!SetFileTime(file_handle, ft, ft, ft)) uprintf(" Could not set timestamp: %s", WindowsErrorString()); } ISO_BLOCKING(safe_closehandle(file_handle)); if (props.is_syslinux_cfg || props.is_grub_cfg) fix_config(psz_sanpath, psz_path, psz_basename, &props); safe_free(psz_sanpath); } } r = 0; out: ISO_BLOCKING(safe_closehandle(file_handle)); _cdio_list_free(p_entlist, true); return r; }
// Returns 0 on success, nonzero on error static int iso_extract_files(iso9660_t* p_iso, const char *psz_path) { HANDLE file_handle = NULL; DWORD buf_size, wr_size; BOOL s, is_syslinux_cfg, is_old_vesamenu; int i_length, r = 1; char psz_fullpath[1024], *psz_basename; const char *psz_iso_name = &psz_fullpath[strlen(psz_extract_dir)]; unsigned char buf[ISO_BLOCKSIZE]; CdioListNode_t* p_entnode; iso9660_stat_t *p_statbuf; CdioList_t* p_entlist; size_t i, nul_pos; lsn_t lsn; int64_t i_file_length; if ((p_iso == NULL) || (psz_path == NULL)) return 1; i_length = safe_sprintf(psz_fullpath, sizeof(psz_fullpath), "%s%s/", psz_extract_dir, psz_path); if (i_length < 0) return 1; psz_basename = &psz_fullpath[i_length]; p_entlist = iso9660_ifs_readdir(p_iso, psz_path); if (!p_entlist) { uprintf("Could not access directory %s\n", psz_path); return 1; } _CDIO_LIST_FOREACH(p_entnode, p_entlist) { if (FormatStatus) goto out; p_statbuf = (iso9660_stat_t*) _cdio_list_node_data(p_entnode); /* Eliminate . and .. entries */ if ( (strcmp(p_statbuf->filename, ".") == 0) || (strcmp(p_statbuf->filename, "..") == 0) ) continue; iso9660_name_translate_ext(p_statbuf->filename, psz_basename, i_joliet_level); if (p_statbuf->type == _STAT_DIR) { if (!scan_only) _mkdirU(psz_fullpath); if (iso_extract_files(p_iso, psz_iso_name)) goto out; } else { i_file_length = p_statbuf->size; if (check_iso_props(psz_path, &is_syslinux_cfg, &is_old_vesamenu, i_file_length, psz_basename, psz_fullpath)) { continue; } // Replace slashes with backslashes and append the size to the path for UI display nul_pos = safe_strlen(psz_fullpath); for (i=0; i<nul_pos; i++) if (psz_fullpath[i] == '/') psz_fullpath[i] = '\\'; safe_strcpy(&psz_fullpath[nul_pos], 24, size_to_hr(i_file_length)); uprintf("Extracting: %s\n", psz_fullpath); SetWindowTextU(hISOFileName, psz_fullpath); // ISO9660 cannot handle backslashes for (i=0; i<nul_pos; i++) if (psz_fullpath[i] == '\\') psz_fullpath[i] = '/'; psz_fullpath[nul_pos] = 0; if (is_old_vesamenu && use_own_vesamenu) { if (CopyFileA("vesamenu.c32", psz_fullpath, FALSE)) { uprintf(" Replaced with local version\n"); continue; } uprintf(" Could not replace file: %s\n", WindowsErrorString()); } file_handle = CreateFileU(psz_fullpath, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); if (file_handle == INVALID_HANDLE_VALUE) { uprintf(" Unable to create file: %s\n", WindowsErrorString()); goto out; } for (i = 0; i_file_length > 0; i++) { if (FormatStatus) goto out; memset(buf, 0, ISO_BLOCKSIZE); lsn = p_statbuf->lsn + (lsn_t)i; if (iso9660_iso_seek_read(p_iso, buf, lsn, 1) != ISO_BLOCKSIZE) { uprintf(" Error reading ISO9660 file %s at LSN %lu\n", psz_iso_name, (long unsigned int)lsn); goto out; } buf_size = (DWORD)MIN(i_file_length, ISO_BLOCKSIZE); ISO_BLOCKING(s = WriteFile(file_handle, buf, buf_size, &wr_size, NULL)); if ((!s) || (buf_size != wr_size)) { uprintf(" Error writing file: %s\n", WindowsErrorString()); goto out; } i_file_length -= ISO_BLOCKSIZE; if (nb_blocks++ % PROGRESS_THRESHOLD == 0) { SendMessage(hISOProgressBar, PBM_SETPOS, (WPARAM)((MAX_PROGRESS*nb_blocks)/total_blocks), 0); UpdateProgress(OP_DOS, 100.0f*nb_blocks/total_blocks); } } ISO_BLOCKING(safe_closehandle(file_handle)); if (is_syslinux_cfg) { if (replace_in_token_data(psz_fullpath, "append", iso_report.label, iso_report.usb_label, TRUE) != NULL) uprintf("Patched %s: '%s' -> '%s'\n", psz_fullpath, iso_report.label, iso_report.usb_label); } } } r = 0; out: ISO_BLOCKING(safe_closehandle(file_handle)); _cdio_list_free(p_entlist, true); return r; }