| 1 | /* |
| 2 | * winsftp.c: the Windows-specific parts of PSFTP and PSCP. |
| 3 | */ |
| 4 | |
| 5 | #include "putty.h" |
| 6 | #include "psftp.h" |
| 7 | |
| 8 | /* ---------------------------------------------------------------------- |
| 9 | * Interface to GUI driver program. |
| 10 | */ |
| 11 | |
| 12 | /* This is just a base value from which the main message numbers are |
| 13 | * derived. */ |
| 14 | #define WM_APP_BASE 0x8000 |
| 15 | |
| 16 | /* These two pass a single character value in wParam. They represent |
| 17 | * the visible output from PSCP. */ |
| 18 | #define WM_STD_OUT_CHAR ( WM_APP_BASE+400 ) |
| 19 | #define WM_STD_ERR_CHAR ( WM_APP_BASE+401 ) |
| 20 | |
| 21 | /* These pass a transfer status update. WM_STATS_CHAR passes a single |
| 22 | * character in wParam, and is called repeatedly to pass the name of |
| 23 | * the file, terminated with "\n". WM_STATS_SIZE passes the size of |
| 24 | * the file being transferred in wParam. WM_STATS_ELAPSED is called |
| 25 | * to pass the elapsed time (in seconds) in wParam, and |
| 26 | * WM_STATS_PERCENT passes the percentage of the transfer which is |
| 27 | * complete, also in wParam. */ |
| 28 | #define WM_STATS_CHAR ( WM_APP_BASE+402 ) |
| 29 | #define WM_STATS_SIZE ( WM_APP_BASE+403 ) |
| 30 | #define WM_STATS_PERCENT ( WM_APP_BASE+404 ) |
| 31 | #define WM_STATS_ELAPSED ( WM_APP_BASE+405 ) |
| 32 | |
| 33 | /* These are used at the end of a run to pass an error code in |
| 34 | * wParam: zero means success, nonzero means failure. WM_RET_ERR_CNT |
| 35 | * is used after a copy, and WM_LS_RET_ERR_CNT is used after a file |
| 36 | * list operation. */ |
| 37 | #define WM_RET_ERR_CNT ( WM_APP_BASE+406 ) |
| 38 | #define WM_LS_RET_ERR_CNT ( WM_APP_BASE+407 ) |
| 39 | |
| 40 | /* More transfer status update messages. WM_STATS_DONE passes the |
| 41 | * number of bytes sent so far in wParam. WM_STATS_ETA passes the |
| 42 | * estimated time to completion (in seconds). WM_STATS_RATEBS passes |
| 43 | * the average transfer rate (in bytes per second). */ |
| 44 | #define WM_STATS_DONE ( WM_APP_BASE+408 ) |
| 45 | #define WM_STATS_ETA ( WM_APP_BASE+409 ) |
| 46 | #define WM_STATS_RATEBS ( WM_APP_BASE+410 ) |
| 47 | |
| 48 | #define NAME_STR_MAX 2048 |
| 49 | static char statname[NAME_STR_MAX + 1]; |
| 50 | static unsigned long statsize = 0; |
| 51 | static unsigned long statdone = 0; |
| 52 | static unsigned long stateta = 0; |
| 53 | static unsigned long statratebs = 0; |
| 54 | static int statperct = 0; |
| 55 | static unsigned long statelapsed = 0; |
| 56 | |
| 57 | static HWND gui_hwnd = NULL; |
| 58 | |
| 59 | static void send_msg(HWND h, UINT message, WPARAM wParam) |
| 60 | { |
| 61 | while (!PostMessage(h, message, wParam, 0)) |
| 62 | SleepEx(1000, TRUE); |
| 63 | } |
| 64 | |
| 65 | void gui_send_char(int is_stderr, int c) |
| 66 | { |
| 67 | unsigned int msg_id = WM_STD_OUT_CHAR; |
| 68 | if (is_stderr) |
| 69 | msg_id = WM_STD_ERR_CHAR; |
| 70 | send_msg(gui_hwnd, msg_id, (WPARAM) c); |
| 71 | } |
| 72 | |
| 73 | void gui_send_errcount(int list, int errs) |
| 74 | { |
| 75 | unsigned int msg_id = WM_RET_ERR_CNT; |
| 76 | if (list) |
| 77 | msg_id = WM_LS_RET_ERR_CNT; |
| 78 | while (!PostMessage(gui_hwnd, msg_id, (WPARAM) errs, 0)) |
| 79 | SleepEx(1000, TRUE); |
| 80 | } |
| 81 | |
| 82 | void gui_update_stats(char *name, unsigned long size, |
| 83 | int percentage, unsigned long elapsed, |
| 84 | unsigned long done, unsigned long eta, |
| 85 | unsigned long ratebs) |
| 86 | { |
| 87 | unsigned int i; |
| 88 | |
| 89 | if (strcmp(name, statname) != 0) { |
| 90 | for (i = 0; i < strlen(name); ++i) |
| 91 | send_msg(gui_hwnd, WM_STATS_CHAR, (WPARAM) name[i]); |
| 92 | send_msg(gui_hwnd, WM_STATS_CHAR, (WPARAM) '\n'); |
| 93 | strcpy(statname, name); |
| 94 | } |
| 95 | if (statsize != size) { |
| 96 | send_msg(gui_hwnd, WM_STATS_SIZE, (WPARAM) size); |
| 97 | statsize = size; |
| 98 | } |
| 99 | if (statdone != done) { |
| 100 | send_msg(gui_hwnd, WM_STATS_DONE, (WPARAM) done); |
| 101 | statdone = done; |
| 102 | } |
| 103 | if (stateta != eta) { |
| 104 | send_msg(gui_hwnd, WM_STATS_ETA, (WPARAM) eta); |
| 105 | stateta = eta; |
| 106 | } |
| 107 | if (statratebs != ratebs) { |
| 108 | send_msg(gui_hwnd, WM_STATS_RATEBS, (WPARAM) ratebs); |
| 109 | statratebs = ratebs; |
| 110 | } |
| 111 | if (statelapsed != elapsed) { |
| 112 | send_msg(gui_hwnd, WM_STATS_ELAPSED, (WPARAM) elapsed); |
| 113 | statelapsed = elapsed; |
| 114 | } |
| 115 | if (statperct != percentage) { |
| 116 | send_msg(gui_hwnd, WM_STATS_PERCENT, (WPARAM) percentage); |
| 117 | statperct = percentage; |
| 118 | } |
| 119 | } |
| 120 | |
| 121 | void gui_enable(char *arg) |
| 122 | { |
| 123 | gui_hwnd = (HWND) atoi(arg); |
| 124 | } |
| 125 | |
| 126 | /* ---------------------------------------------------------------------- |
| 127 | * File access abstraction. |
| 128 | */ |
| 129 | |
| 130 | /* |
| 131 | * Set local current directory. Returns NULL on success, or else an |
| 132 | * error message which must be freed after printing. |
| 133 | */ |
| 134 | char *psftp_lcd(char *dir) |
| 135 | { |
| 136 | char *ret = NULL; |
| 137 | |
| 138 | if (!SetCurrentDirectory(dir)) { |
| 139 | LPVOID message; |
| 140 | int i; |
| 141 | FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | |
| 142 | FORMAT_MESSAGE_FROM_SYSTEM | |
| 143 | FORMAT_MESSAGE_IGNORE_INSERTS, |
| 144 | NULL, GetLastError(), |
| 145 | MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), |
| 146 | (LPTSTR)&message, 0, NULL); |
| 147 | i = strcspn((char *)message, "\n"); |
| 148 | ret = dupprintf("%.*s", i, (LPCTSTR)message); |
| 149 | LocalFree(message); |
| 150 | } |
| 151 | |
| 152 | return ret; |
| 153 | } |
| 154 | |
| 155 | /* |
| 156 | * Get local current directory. Returns a string which must be |
| 157 | * freed. |
| 158 | */ |
| 159 | char *psftp_getcwd(void) |
| 160 | { |
| 161 | char *ret = snewn(256, char); |
| 162 | int len = GetCurrentDirectory(256, ret); |
| 163 | if (len > 256) |
| 164 | ret = sresize(ret, len, char); |
| 165 | GetCurrentDirectory(len, ret); |
| 166 | return ret; |
| 167 | } |
| 168 | |
| 169 | #define TIME_POSIX_TO_WIN(t, ft) (*(LONGLONG*)&(ft) = \ |
| 170 | ((LONGLONG) (t) + (LONGLONG) 11644473600) * (LONGLONG) 10000000) |
| 171 | #define TIME_WIN_TO_POSIX(ft, t) ((t) = (unsigned long) \ |
| 172 | ((*(LONGLONG*)&(ft)) / (LONGLONG) 10000000 - (LONGLONG) 11644473600)) |
| 173 | |
| 174 | struct RFile { |
| 175 | HANDLE h; |
| 176 | }; |
| 177 | |
| 178 | RFile *open_existing_file(char *name, unsigned long *size, |
| 179 | unsigned long *mtime, unsigned long *atime) |
| 180 | { |
| 181 | HANDLE h; |
| 182 | RFile *ret; |
| 183 | |
| 184 | h = CreateFile(name, GENERIC_READ, FILE_SHARE_READ, NULL, |
| 185 | OPEN_EXISTING, 0, 0); |
| 186 | if (h == INVALID_HANDLE_VALUE) |
| 187 | return NULL; |
| 188 | |
| 189 | ret = snew(RFile); |
| 190 | ret->h = h; |
| 191 | |
| 192 | if (size) |
| 193 | *size = GetFileSize(h, NULL); |
| 194 | |
| 195 | if (mtime || atime) { |
| 196 | FILETIME actime, wrtime; |
| 197 | GetFileTime(h, NULL, &actime, &wrtime); |
| 198 | if (atime) |
| 199 | TIME_WIN_TO_POSIX(actime, *atime); |
| 200 | if (mtime) |
| 201 | TIME_WIN_TO_POSIX(wrtime, *mtime); |
| 202 | } |
| 203 | |
| 204 | return ret; |
| 205 | } |
| 206 | |
| 207 | int read_from_file(RFile *f, void *buffer, int length) |
| 208 | { |
| 209 | int ret, read; |
| 210 | ret = ReadFile(f->h, buffer, length, &read, NULL); |
| 211 | if (!ret) |
| 212 | return -1; /* error */ |
| 213 | else |
| 214 | return read; |
| 215 | } |
| 216 | |
| 217 | void close_rfile(RFile *f) |
| 218 | { |
| 219 | CloseHandle(f->h); |
| 220 | sfree(f); |
| 221 | } |
| 222 | |
| 223 | struct WFile { |
| 224 | HANDLE h; |
| 225 | }; |
| 226 | |
| 227 | WFile *open_new_file(char *name) |
| 228 | { |
| 229 | HANDLE h; |
| 230 | WFile *ret; |
| 231 | |
| 232 | h = CreateFile(name, GENERIC_WRITE, 0, NULL, |
| 233 | CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0); |
| 234 | if (h == INVALID_HANDLE_VALUE) |
| 235 | return NULL; |
| 236 | |
| 237 | ret = snew(WFile); |
| 238 | ret->h = h; |
| 239 | |
| 240 | return ret; |
| 241 | } |
| 242 | |
| 243 | int write_to_file(WFile *f, void *buffer, int length) |
| 244 | { |
| 245 | int ret, written; |
| 246 | ret = WriteFile(f->h, buffer, length, &written, NULL); |
| 247 | if (!ret) |
| 248 | return -1; /* error */ |
| 249 | else |
| 250 | return written; |
| 251 | } |
| 252 | |
| 253 | void set_file_times(WFile *f, unsigned long mtime, unsigned long atime) |
| 254 | { |
| 255 | FILETIME actime, wrtime; |
| 256 | TIME_POSIX_TO_WIN(atime, actime); |
| 257 | TIME_POSIX_TO_WIN(mtime, wrtime); |
| 258 | SetFileTime(f->h, NULL, &actime, &wrtime); |
| 259 | } |
| 260 | |
| 261 | void close_wfile(WFile *f) |
| 262 | { |
| 263 | CloseHandle(f->h); |
| 264 | sfree(f); |
| 265 | } |
| 266 | |
| 267 | int file_type(char *name) |
| 268 | { |
| 269 | DWORD attr; |
| 270 | attr = GetFileAttributes(name); |
| 271 | /* We know of no `weird' files under Windows. */ |
| 272 | if (attr == (DWORD)-1) |
| 273 | return FILE_TYPE_NONEXISTENT; |
| 274 | else if (attr & FILE_ATTRIBUTE_DIRECTORY) |
| 275 | return FILE_TYPE_DIRECTORY; |
| 276 | else |
| 277 | return FILE_TYPE_FILE; |
| 278 | } |
| 279 | |
| 280 | struct DirHandle { |
| 281 | HANDLE h; |
| 282 | char *name; |
| 283 | }; |
| 284 | |
| 285 | DirHandle *open_directory(char *name) |
| 286 | { |
| 287 | HANDLE h; |
| 288 | WIN32_FIND_DATA fdat; |
| 289 | char *findfile; |
| 290 | DirHandle *ret; |
| 291 | |
| 292 | /* To enumerate files in dir `foo', we search for `foo/*'. */ |
| 293 | findfile = dupcat(name, "/*", NULL); |
| 294 | h = FindFirstFile(findfile, &fdat); |
| 295 | if (h == INVALID_HANDLE_VALUE) |
| 296 | return NULL; |
| 297 | sfree(findfile); |
| 298 | |
| 299 | ret = snew(DirHandle); |
| 300 | ret->h = h; |
| 301 | ret->name = dupstr(fdat.cFileName); |
| 302 | return ret; |
| 303 | } |
| 304 | |
| 305 | char *read_filename(DirHandle *dir) |
| 306 | { |
| 307 | while (!dir->name) { |
| 308 | WIN32_FIND_DATA fdat; |
| 309 | int ok = FindNextFile(dir->h, &fdat); |
| 310 | |
| 311 | if (!ok) |
| 312 | return NULL; |
| 313 | |
| 314 | if (fdat.cFileName[0] == '.' && |
| 315 | (fdat.cFileName[1] == '\0' || |
| 316 | (fdat.cFileName[1] == '.' && fdat.cFileName[2] == '\0'))) |
| 317 | dir->name = NULL; |
| 318 | else |
| 319 | dir->name = dupstr(fdat.cFileName); |
| 320 | } |
| 321 | |
| 322 | if (dir->name) { |
| 323 | char *ret = dir->name; |
| 324 | dir->name = NULL; |
| 325 | return ret; |
| 326 | } else |
| 327 | return NULL; |
| 328 | } |
| 329 | |
| 330 | void close_directory(DirHandle *dir) |
| 331 | { |
| 332 | FindClose(dir->h); |
| 333 | if (dir->name) |
| 334 | sfree(dir->name); |
| 335 | sfree(dir); |
| 336 | } |
| 337 | |
| 338 | int test_wildcard(char *name, int cmdline) |
| 339 | { |
| 340 | HANDLE fh; |
| 341 | WIN32_FIND_DATA fdat; |
| 342 | |
| 343 | /* First see if the exact name exists. */ |
| 344 | if (GetFileAttributes(name) != (DWORD)-1) |
| 345 | return WCTYPE_FILENAME; |
| 346 | |
| 347 | /* Otherwise see if a wildcard match finds anything. */ |
| 348 | fh = FindFirstFile(name, &fdat); |
| 349 | if (fh == INVALID_HANDLE_VALUE) |
| 350 | return WCTYPE_NONEXISTENT; |
| 351 | |
| 352 | FindClose(fh); |
| 353 | return WCTYPE_WILDCARD; |
| 354 | } |
| 355 | |
| 356 | struct WildcardMatcher { |
| 357 | HANDLE h; |
| 358 | char *name; |
| 359 | char *srcpath; |
| 360 | }; |
| 361 | |
| 362 | /* |
| 363 | * Return a pointer to the portion of str that comes after the last |
| 364 | * slash (or backslash or colon, if `local' is TRUE). |
| 365 | */ |
| 366 | static char *stripslashes(char *str, int local) |
| 367 | { |
| 368 | char *p; |
| 369 | |
| 370 | if (local) { |
| 371 | p = strchr(str, ':'); |
| 372 | if (p) str = p+1; |
| 373 | } |
| 374 | |
| 375 | p = strrchr(str, '/'); |
| 376 | if (p) str = p+1; |
| 377 | |
| 378 | if (local) { |
| 379 | p = strrchr(str, '\\'); |
| 380 | if (p) str = p+1; |
| 381 | } |
| 382 | |
| 383 | return str; |
| 384 | } |
| 385 | |
| 386 | WildcardMatcher *begin_wildcard_matching(char *name) |
| 387 | { |
| 388 | HANDLE h; |
| 389 | WIN32_FIND_DATA fdat; |
| 390 | WildcardMatcher *ret; |
| 391 | char *last; |
| 392 | |
| 393 | h = FindFirstFile(name, &fdat); |
| 394 | if (h == INVALID_HANDLE_VALUE) |
| 395 | return NULL; |
| 396 | |
| 397 | ret = snew(WildcardMatcher); |
| 398 | ret->h = h; |
| 399 | ret->srcpath = dupstr(name); |
| 400 | last = stripslashes(ret->srcpath, 1); |
| 401 | *last = '\0'; |
| 402 | if (fdat.cFileName[0] == '.' && |
| 403 | (fdat.cFileName[1] == '\0' || |
| 404 | (fdat.cFileName[1] == '.' && fdat.cFileName[2] == '\0'))) |
| 405 | ret->name = NULL; |
| 406 | else |
| 407 | ret->name = dupcat(ret->srcpath, fdat.cFileName, NULL); |
| 408 | |
| 409 | return ret; |
| 410 | } |
| 411 | |
| 412 | char *wildcard_get_filename(WildcardMatcher *dir) |
| 413 | { |
| 414 | while (!dir->name) { |
| 415 | WIN32_FIND_DATA fdat; |
| 416 | int ok = FindNextFile(dir->h, &fdat); |
| 417 | |
| 418 | if (!ok) |
| 419 | return NULL; |
| 420 | |
| 421 | if (fdat.cFileName[0] == '.' && |
| 422 | (fdat.cFileName[1] == '\0' || |
| 423 | (fdat.cFileName[1] == '.' && fdat.cFileName[2] == '\0'))) |
| 424 | dir->name = NULL; |
| 425 | else |
| 426 | dir->name = dupcat(dir->srcpath, fdat.cFileName, NULL); |
| 427 | } |
| 428 | |
| 429 | if (dir->name) { |
| 430 | char *ret = dir->name; |
| 431 | dir->name = NULL; |
| 432 | return ret; |
| 433 | } else |
| 434 | return NULL; |
| 435 | } |
| 436 | |
| 437 | void finish_wildcard_matching(WildcardMatcher *dir) |
| 438 | { |
| 439 | FindClose(dir->h); |
| 440 | if (dir->name) |
| 441 | sfree(dir->name); |
| 442 | sfree(dir->srcpath); |
| 443 | sfree(dir); |
| 444 | } |
| 445 | |
| 446 | int create_directory(char *name) |
| 447 | { |
| 448 | return CreateDirectory(name, NULL) != 0; |
| 449 | } |
| 450 | |
| 451 | char *dir_file_cat(char *dir, char *file) |
| 452 | { |
| 453 | return dupcat(dir, "\\", file, NULL); |
| 454 | } |
| 455 | |
| 456 | /* ---------------------------------------------------------------------- |
| 457 | * Platform-specific network handling. |
| 458 | */ |
| 459 | |
| 460 | /* |
| 461 | * Be told what socket we're supposed to be using. |
| 462 | */ |
| 463 | static SOCKET sftp_ssh_socket; |
| 464 | char *do_select(SOCKET skt, int startup) |
| 465 | { |
| 466 | if (startup) |
| 467 | sftp_ssh_socket = skt; |
| 468 | else |
| 469 | sftp_ssh_socket = INVALID_SOCKET; |
| 470 | return NULL; |
| 471 | } |
| 472 | extern int select_result(WPARAM, LPARAM); |
| 473 | |
| 474 | /* |
| 475 | * Wait for some network data and process it. |
| 476 | */ |
| 477 | int ssh_sftp_loop_iteration(void) |
| 478 | { |
| 479 | fd_set readfds; |
| 480 | |
| 481 | if (sftp_ssh_socket == INVALID_SOCKET) |
| 482 | return -1; /* doom */ |
| 483 | |
| 484 | FD_ZERO(&readfds); |
| 485 | FD_SET(sftp_ssh_socket, &readfds); |
| 486 | if (p_select(1, &readfds, NULL, NULL, NULL) < 0) |
| 487 | return -1; /* doom */ |
| 488 | |
| 489 | select_result((WPARAM) sftp_ssh_socket, (LPARAM) FD_READ); |
| 490 | return 0; |
| 491 | } |
| 492 | |
| 493 | /* ---------------------------------------------------------------------- |
| 494 | * Main program. Parse arguments etc. |
| 495 | */ |
| 496 | int main(int argc, char *argv[]) |
| 497 | { |
| 498 | int ret; |
| 499 | |
| 500 | ret = psftp_main(argc, argv); |
| 501 | |
| 502 | return ret; |
| 503 | } |