1 /*- 2 * Copyright (c) 2000 Dag-Erling Co�dan Sm�rgrav 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer 10 * in this position and unchanged. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 */ 30 31 #include <sys/param.h> 32 #include <sys/stat.h> 33 #include <sys/socket.h> 34 35 #include <ctype.h> 36 #include <err.h> 37 #include <errno.h> 38 #include <signal.h> 39 #include <stdio.h> 40 #include <stdlib.h> 41 #include <string.h> 42 #include <sysexits.h> 43 #include <termios.h> 44 #include <unistd.h> 45 46 #include <fetch.h> 47 48 #define MINBUFSIZE 4096 49 50 /* Option flags */ 51 int A_flag; /* -A: do not follow 302 redirects */ 52 int a_flag; /* -a: auto retry */ 53 off_t B_size; /* -B: buffer size */ 54 int b_flag; /*! -b: workaround TCP bug */ 55 char *c_dirname; /* -c: remote directory */ 56 int d_flag; /* -d: direct connection */ 57 int F_flag; /* -F: restart without checking mtime */ 58 char *f_filename; /* -f: file to fetch */ 59 char *h_hostname; /* -h: host to fetch from */ 60 int l_flag; /* -l: link rather than copy file: URLs */ 61 int m_flag; /* -[Mm]: mirror mode */ 62 int n_flag; /* -n: do not preserve modification time */ 63 int o_flag; /* -o: specify output file */ 64 int o_directory; /* output file is a directory */ 65 char *o_filename; /* name of output file */ 66 int o_stdout; /* output file is stdout */ 67 int once_flag; /* -1: stop at first successful file */ 68 int p_flag; /* -[Pp]: use passive FTP */ 69 int R_flag; /* -R: don't delete partially transferred files */ 70 int r_flag; /* -r: restart previously interrupted transfer */ 71 off_t S_size; /* -S: require size to match */ 72 int s_flag; /* -s: show size, don't fetch */ 73 u_int T_secs = 0; /* -T: transfer timeout in seconds */ 74 int t_flag; /*! -t: workaround TCP bug */ 75 int U_flag; /* -U: do not use high ports */ 76 int v_level = 1; /* -v: verbosity level */ 77 int v_tty; /* stdout is a tty */ 78 u_int w_secs; /* -w: retry delay */ 79 int family = PF_UNSPEC; /* -[46]: address family to use */ 80 81 int sigalrm; /* SIGALRM received */ 82 int siginfo; /* SIGINFO received */ 83 int sigint; /* SIGINT received */ 84 85 u_int ftp_timeout; /* default timeout for FTP transfers */ 86 u_int http_timeout; /* default timeout for HTTP transfers */ 87 u_char *buf; /* transfer buffer */ 88 89 90 static void 91 sig_handler(int sig) 92 { 93 switch (sig) { 94 case SIGALRM: 95 sigalrm = 1; 96 break; 97 case SIGINFO: 98 siginfo = 1; 99 break; 100 case SIGINT: 101 sigint = 1; 102 break; 103 } 104 } 105 106 struct xferstat { 107 char name[40]; 108 struct timeval start; 109 struct timeval end; 110 struct timeval last; 111 off_t size; 112 off_t offset; 113 off_t rcvd; 114 }; 115 116 static void 117 stat_display(struct xferstat *xs, int force) 118 { 119 struct timeval now; 120 121 if (!v_tty || !v_level) 122 return; 123 124 gettimeofday(&now, NULL); 125 if (!force && now.tv_sec <= xs->last.tv_sec) 126 return; 127 xs->last = now; 128 129 fprintf(stderr, "\rReceiving %s", xs->name); 130 if (xs->size <= 0) 131 fprintf(stderr, ": %lld bytes", (long long)xs->rcvd); 132 else 133 fprintf(stderr, " (%lld bytes): %d%%", (long long)xs->size, 134 (int)((100.0 * xs->rcvd) / xs->size)); 135 } 136 137 static void 138 stat_start(struct xferstat *xs, const char *name, off_t size, off_t offset) 139 { 140 snprintf(xs->name, sizeof xs->name, "%s", name); 141 gettimeofday(&xs->start, NULL); 142 xs->last.tv_sec = xs->last.tv_usec = 0; 143 xs->end = xs->last; 144 xs->size = size; 145 xs->offset = offset; 146 xs->rcvd = offset; 147 stat_display(xs, 1); 148 } 149 150 static void 151 stat_update(struct xferstat *xs, off_t rcvd) 152 { 153 xs->rcvd = rcvd; 154 stat_display(xs, 0); 155 } 156 157 static void 158 stat_end(struct xferstat *xs) 159 { 160 double delta; 161 double bps; 162 163 if (!v_level) 164 return; 165 166 gettimeofday(&xs->end, NULL); 167 168 stat_display(xs, 1); 169 fputc('\n', stderr); 170 delta = (xs->end.tv_sec + (xs->end.tv_usec / 1.e6)) 171 - (xs->start.tv_sec + (xs->start.tv_usec / 1.e6)); 172 fprintf(stderr, "%lld bytes transferred in %.1f seconds ", 173 (long long)(xs->rcvd - xs->offset), delta); 174 bps = (xs->rcvd - xs->offset) / delta; 175 if (bps > 1024*1024) 176 fprintf(stderr, "(%.2f MBps)\n", bps / (1024*1024)); 177 else if (bps > 1024) 178 fprintf(stderr, "(%.2f kBps)\n", bps / 1024); 179 else 180 fprintf(stderr, "(%.2f Bps)\n", bps); 181 } 182 183 static int 184 query_auth(struct url *URL) 185 { 186 struct termios tios; 187 tcflag_t saved_flags; 188 int i, nopwd; 189 190 191 fprintf(stderr, "Authentication required for <%s://%s:%d/>!\n", 192 URL->scheme, URL->host, URL->port, URL->doc); 193 194 fprintf(stderr, "Login: "); 195 if (fgets(URL->user, sizeof URL->user, stdin) == NULL) 196 return -1; 197 for (i = 0; URL->user[i]; ++i) 198 if (isspace(URL->user[i])) 199 URL->user[i] = '\0'; 200 201 fprintf(stderr, "Password: "); 202 if (tcgetattr(STDIN_FILENO, &tios) == 0) { 203 saved_flags = tios.c_lflag; 204 tios.c_lflag &= ~ECHO; 205 tios.c_lflag |= ECHONL|ICANON; 206 tcsetattr(STDIN_FILENO, TCSAFLUSH|TCSASOFT, &tios); 207 nopwd = (fgets(URL->pwd, sizeof URL->pwd, stdin) == NULL); 208 tios.c_lflag = saved_flags; 209 tcsetattr(STDIN_FILENO, TCSANOW|TCSASOFT, &tios); 210 } else { 211 nopwd = (fgets(URL->pwd, sizeof URL->pwd, stdin) == NULL); 212 } 213 if (nopwd) 214 return -1; 215 216 for (i = 0; URL->pwd[i]; ++i) 217 if (isspace(URL->pwd[i])) 218 URL->pwd[i] = '\0'; 219 return 0; 220 } 221 222 static int 223 fetch(char *URL, const char *path) 224 { 225 struct url *url; 226 struct url_stat us; 227 struct stat sb; 228 struct xferstat xs; 229 FILE *f, *of; 230 size_t size, wr; 231 off_t count; 232 char flags[8]; 233 int r; 234 u_int timeout; 235 u_char *ptr; 236 237 f = of = NULL; 238 239 /* parse URL */ 240 if ((url = fetchParseURL(URL)) == NULL) { 241 warnx("%s: parse error", URL); 242 goto failure; 243 } 244 245 /* if no scheme was specified, take a guess */ 246 if (!*url->scheme) { 247 if (!*url->host) 248 strcpy(url->scheme, SCHEME_FILE); 249 else if (strncasecmp(url->host, "ftp.", 4) == 0) 250 strcpy(url->scheme, SCHEME_FTP); 251 else if (strncasecmp(url->host, "www.", 4) == 0) 252 strcpy(url->scheme, SCHEME_HTTP); 253 } 254 255 timeout = 0; 256 *flags = 0; 257 count = 0; 258 259 /* common flags */ 260 if (v_level > 1) 261 strcat(flags, "v"); 262 switch (family) { 263 case PF_INET: 264 strcat(flags, "4"); 265 break; 266 case PF_INET6: 267 strcat(flags, "6"); 268 break; 269 } 270 271 /* FTP specific flags */ 272 if (strcmp(url->scheme, "ftp") == 0) { 273 if (p_flag) 274 strcat(flags, "p"); 275 if (d_flag) 276 strcat(flags, "d"); 277 if (U_flag) 278 strcat(flags, "l"); 279 timeout = T_secs ? T_secs : ftp_timeout; 280 } 281 282 /* HTTP specific flags */ 283 if (strcmp(url->scheme, "http") == 0) { 284 if (d_flag) 285 strcat(flags, "d"); 286 if (A_flag) 287 strcat(flags, "A"); 288 timeout = T_secs ? T_secs : http_timeout; 289 } 290 291 /* set the protocol timeout. */ 292 fetchTimeout = timeout; 293 294 /* just print size */ 295 if (s_flag) { 296 if (fetchStat(url, &us, flags) == -1) 297 goto failure; 298 if (us.size == -1) 299 printf("Unknown\n"); 300 else 301 printf("%lld\n", (long long)us.size); 302 goto success; 303 } 304 305 /* 306 * If the -r flag was specified, we have to compare the local 307 * and remote files, so we should really do a fetchStat() 308 * first, but I know of at least one HTTP server that only 309 * sends the content size in response to GET requests, and 310 * leaves it out of replies to HEAD requests. Also, in the 311 * (frequent) case that the local and remote files match but 312 * the local file is truncated, we have sufficient information 313 * before the compare to issue a correct request. Therefore, 314 * we always issue a GET request as if we were sure the local 315 * file was a truncated copy of the remote file; we can drop 316 * the connection later if we change our minds. 317 */ 318 if ((r_flag || m_flag) && !o_stdout && stat(path, &sb) != -1) { 319 if (r_flag) 320 url->offset = sb.st_size; 321 } else { 322 sb.st_size = -1; 323 } 324 325 /* start the transfer */ 326 if ((f = fetchXGet(url, &us, flags)) == NULL) { 327 warnx("%s: %s", path, fetchLastErrString); 328 goto failure; 329 } 330 if (sigint) 331 goto signal; 332 333 /* check that size is as expected */ 334 if (S_size) { 335 if (us.size == -1) { 336 warnx("%s: size unknown", path); 337 goto failure; 338 } else if (us.size != S_size) { 339 warnx("%s: size mismatch: expected %lld, actual %lld", 340 path, (long long)S_size, (long long)us.size); 341 goto failure; 342 } 343 } 344 345 /* symlink instead of copy */ 346 if (l_flag && strcmp(url->scheme, "file") == 0 && !o_stdout) { 347 if (symlink(url->doc, path) == -1) { 348 warn("%s: symlink()", path); 349 goto failure; 350 } 351 goto success; 352 } 353 354 if (us.size == -1 && !o_stdout) 355 warnx("%s: size of remote file is not known", path); 356 if (v_level > 1) { 357 if (sb.st_size != -1) 358 fprintf(stderr, "local size / mtime: %lld / %ld\n", 359 (long long)sb.st_size, (long)sb.st_mtime); 360 if (us.size != -1) 361 fprintf(stderr, "remote size / mtime: %lld / %ld\n", 362 (long long)us.size, (long)us.mtime); 363 } 364 365 /* open output file */ 366 if (o_stdout) { 367 /* output to stdout */ 368 of = stdout; 369 } else if (sb.st_size != -1) { 370 /* resume mode, local file exists */ 371 if (!F_flag && us.mtime && sb.st_mtime != us.mtime) { 372 /* no match! have to refetch */ 373 fclose(f); 374 /* if precious, warn the user and give up */ 375 if (R_flag) { 376 warnx("%s: local modification time " 377 "does not match remote", path); 378 goto failure_keep; 379 } 380 url->offset = 0; 381 if ((f = fetchXGet(url, &us, flags)) == NULL) { 382 warnx("%s: %s", path, fetchLastErrString); 383 goto failure; 384 } 385 if (sigint) 386 goto signal; 387 } else { 388 if (us.size == sb.st_size) 389 /* nothing to do */ 390 goto success; 391 if (sb.st_size > us.size) { 392 /* local file too long! */ 393 warnx("%s: local file (%lld bytes) is longer " 394 "than remote file (%lld bytes)", path, 395 (long long)sb.st_size, (long long)us.size); 396 goto failure; 397 } 398 /* we got it, open local file and seek to offset */ 399 /* 400 * XXX there's a race condition here - the 401 * file we open is not necessarily the same as 402 * the one we stat()'ed earlier... 403 */ 404 if ((of = fopen(path, "a")) == NULL) { 405 warn("%s: fopen()", path); 406 goto failure; 407 } 408 if (fseek(of, url->offset, SEEK_SET) == -1) { 409 warn("%s: fseek()", path); 410 goto failure; 411 } 412 } 413 } 414 if (m_flag && sb.st_size != -1) { 415 /* mirror mode, local file exists */ 416 if (sb.st_size == us.size && sb.st_mtime == us.mtime) 417 goto success; 418 } 419 if (!of) { 420 /* 421 * We don't yet have an output file; either this is a 422 * vanilla run with no special flags, or the local and 423 * remote files didn't match. 424 */ 425 if ((of = fopen(path, "w")) == NULL) { 426 warn("%s: open()", path); 427 goto failure; 428 } 429 } 430 count = url->offset; 431 432 /* start the counter */ 433 stat_start(&xs, path, us.size, count); 434 435 sigalrm = siginfo = sigint = 0; 436 437 /* suck in the data */ 438 signal(SIGINFO, sig_handler); 439 while (!sigint && !sigalrm) { 440 if (us.size != -1 && us.size - count < B_size) 441 size = us.size - count; 442 else 443 size = B_size; 444 if (timeout) 445 alarm(timeout); 446 if (siginfo) { 447 stat_end(&xs); 448 siginfo = 0; 449 } 450 if ((size = fread(buf, 1, size, f)) == 0) { 451 if (ferror(f) && errno == EINTR && !sigalrm && !sigint) 452 clearerr(f); 453 else 454 break; 455 } 456 if (timeout) 457 alarm(0); 458 stat_update(&xs, count += size); 459 for (ptr = buf; size > 0; ptr += wr, size -= wr) 460 if ((wr = fwrite(ptr, 1, size, of)) < size) { 461 if (ferror(of) && errno == EINTR && 462 !sigalrm && !sigint) 463 clearerr(of); 464 else 465 break; 466 } 467 if (size != 0) 468 break; 469 } 470 signal(SIGINFO, SIG_DFL); 471 472 if (timeout) 473 alarm(0); 474 475 stat_end(&xs); 476 477 /* set mtime of local file */ 478 if (!n_flag && us.mtime && !o_stdout 479 && (stat(path, &sb) != -1) && sb.st_mode & S_IFREG) { 480 struct timeval tv[2]; 481 482 fflush(of); 483 tv[0].tv_sec = (long)(us.atime ? us.atime : us.mtime); 484 tv[1].tv_sec = (long)us.mtime; 485 tv[0].tv_usec = tv[1].tv_usec = 0; 486 if (utimes(path, tv)) 487 warn("%s: utimes()", path); 488 } 489 490 /* timed out or interrupted? */ 491 signal: 492 if (sigalrm) 493 warnx("transfer timed out"); 494 if (sigint) { 495 warnx("transfer interrupted"); 496 goto failure; 497 } 498 499 if (!sigalrm) { 500 /* check the status of our files */ 501 if (ferror(f)) 502 warn("%s", URL); 503 if (ferror(of)) 504 warn("%s", path); 505 if (ferror(f) || ferror(of)) 506 goto failure; 507 } 508 509 /* did the transfer complete normally? */ 510 if (us.size != -1 && count < us.size) { 511 warnx("%s appears to be truncated: %lld/%lld bytes", 512 path, (long long)count, (long long)us.size); 513 goto failure_keep; 514 } 515 516 /* 517 * If the transfer timed out and we didn't know how much to 518 * expect, assume the worst (i.e. we didn't get all of it) 519 */ 520 if (sigalrm && us.size == -1) { 521 warnx("%s may be truncated", path); 522 goto failure_keep; 523 } 524 525 success: 526 r = 0; 527 goto done; 528 failure: 529 if (of && of != stdout && !R_flag && !r_flag) 530 if (stat(path, &sb) != -1 && (sb.st_mode & S_IFREG)) 531 unlink(path); 532 failure_keep: 533 r = -1; 534 goto done; 535 done: 536 if (f) 537 fclose(f); 538 if (of && of != stdout) 539 fclose(of); 540 if (url) 541 fetchFreeURL(url); 542 return r; 543 } 544 545 static void 546 usage(void) 547 { 548 fprintf(stderr, "%s\n%s\n%s\n", 549 "Usage: fetch [-146AFMPRUadlmnpqrsv] [-o outputfile] [-S bytes]", 550 " [-B bytes] [-T seconds] [-w seconds]", 551 " [-h host -f file [-c dir] | URL ...]"); 552 } 553 554 555 #define PARSENUM(NAME, TYPE) \ 556 static int \ 557 NAME(const char *s, TYPE *v) \ 558 { \ 559 *v = 0; \ 560 for (*v = 0; *s; s++) \ 561 if (isdigit(*s)) \ 562 *v = *v * 10 + *s - '0'; \ 563 else \ 564 return -1; \ 565 return 0; \ 566 } 567 568 PARSENUM(parseint, u_int) 569 PARSENUM(parseoff, off_t) 570 571 int 572 main(int argc, char *argv[]) 573 { 574 struct stat sb; 575 struct sigaction sa; 576 const char *p, *s; 577 char *q; 578 int c, e, r; 579 580 while ((c = getopt(argc, argv, 581 "146AaB:bc:dFf:Hh:lMmnPpo:qRrS:sT:tUvw:")) != EOF) 582 switch (c) { 583 case '1': 584 once_flag = 1; 585 break; 586 case '4': 587 family = PF_INET; 588 break; 589 case '6': 590 family = PF_INET6; 591 break; 592 case 'A': 593 A_flag = 1; 594 break; 595 case 'a': 596 a_flag = 1; 597 break; 598 case 'B': 599 if (parseoff(optarg, &B_size) == -1) 600 errx(1, "invalid buffer size"); 601 break; 602 case 'b': 603 warnx("warning: the -b option is deprecated"); 604 b_flag = 1; 605 break; 606 case 'c': 607 c_dirname = optarg; 608 break; 609 case 'd': 610 d_flag = 1; 611 break; 612 case 'F': 613 F_flag = 1; 614 break; 615 case 'f': 616 f_filename = optarg; 617 break; 618 case 'H': 619 warnx("The -H option is now implicit, " 620 "use -U to disable"); 621 break; 622 case 'h': 623 h_hostname = optarg; 624 break; 625 case 'l': 626 l_flag = 1; 627 break; 628 case 'o': 629 o_flag = 1; 630 o_filename = optarg; 631 break; 632 case 'M': 633 case 'm': 634 if (r_flag) 635 errx(1, "the -m and -r flags " 636 "are mutually exclusive"); 637 m_flag = 1; 638 break; 639 case 'n': 640 n_flag = 1; 641 break; 642 case 'P': 643 case 'p': 644 p_flag = 1; 645 break; 646 case 'q': 647 v_level = 0; 648 break; 649 case 'R': 650 R_flag = 1; 651 break; 652 case 'r': 653 if (m_flag) 654 errx(1, "the -m and -r flags " 655 "are mutually exclusive"); 656 r_flag = 1; 657 break; 658 case 'S': 659 if (parseoff(optarg, &S_size) == -1) 660 errx(1, "invalid size"); 661 break; 662 case 's': 663 s_flag = 1; 664 break; 665 case 'T': 666 if (parseint(optarg, &T_secs) == -1) 667 errx(1, "invalid timeout"); 668 break; 669 case 't': 670 t_flag = 1; 671 warnx("warning: the -t option is deprecated"); 672 break; 673 case 'U': 674 U_flag = 1; 675 break; 676 case 'v': 677 v_level++; 678 break; 679 case 'w': 680 a_flag = 1; 681 if (parseint(optarg, &w_secs) == -1) 682 errx(1, "invalid delay"); 683 break; 684 default: 685 usage(); 686 exit(EX_USAGE); 687 } 688 689 argc -= optind; 690 argv += optind; 691 692 if (h_hostname || f_filename || c_dirname) { 693 if (!h_hostname || !f_filename || argc) { 694 usage(); 695 exit(EX_USAGE); 696 } 697 /* XXX this is a hack. */ 698 if (strcspn(h_hostname, "@:/") != strlen(h_hostname)) 699 errx(1, "invalid hostname"); 700 if (asprintf(argv, "ftp://%s/%s/%s", h_hostname, 701 c_dirname ? c_dirname : "", f_filename) == -1) 702 errx(1, "%s", strerror(ENOMEM)); 703 argc++; 704 } 705 706 if (!argc) { 707 usage(); 708 exit(EX_USAGE); 709 } 710 711 /* allocate buffer */ 712 if (B_size < MINBUFSIZE) 713 B_size = MINBUFSIZE; 714 if ((buf = malloc(B_size)) == NULL) 715 errx(1, "%s", strerror(ENOMEM)); 716 717 /* timeouts */ 718 if ((s = getenv("FTP_TIMEOUT")) != NULL) { 719 if (parseint(s, &ftp_timeout) == -1) { 720 warnx("FTP_TIMEOUT is not a positive integer"); 721 ftp_timeout = 0; 722 } 723 } 724 if ((s = getenv("HTTP_TIMEOUT")) != NULL) { 725 if (parseint(s, &http_timeout) == -1) { 726 warnx("HTTP_TIMEOUT is not a positive integer"); 727 http_timeout = 0; 728 } 729 } 730 731 /* signal handling */ 732 sa.sa_flags = 0; 733 sa.sa_handler = sig_handler; 734 sigemptyset(&sa.sa_mask); 735 sigaction(SIGALRM, &sa, NULL); 736 sa.sa_flags = SA_RESETHAND; 737 sigaction(SIGINT, &sa, NULL); 738 fetchRestartCalls = 0; 739 740 /* output file */ 741 if (o_flag) { 742 if (strcmp(o_filename, "-") == 0) { 743 o_stdout = 1; 744 } else if (stat(o_filename, &sb) == -1) { 745 if (errno == ENOENT) { 746 if (argc > 1) 747 errx(EX_USAGE, "%s is not a directory", 748 o_filename); 749 } else { 750 err(EX_IOERR, "%s", o_filename); 751 } 752 } else { 753 if (sb.st_mode & S_IFDIR) 754 o_directory = 1; 755 } 756 } 757 758 /* check if output is to a tty (for progress report) */ 759 v_tty = isatty(STDERR_FILENO); 760 r = 0; 761 762 /* authentication */ 763 if (v_tty) 764 fetchAuthMethod = query_auth; 765 766 while (argc) { 767 if ((p = strrchr(*argv, '/')) == NULL) 768 p = *argv; 769 else 770 p++; 771 772 if (!*p) 773 p = "fetch.out"; 774 775 fetchLastErrCode = 0; 776 777 if (o_flag) { 778 if (o_stdout) { 779 e = fetch(*argv, "-"); 780 } else if (o_directory) { 781 asprintf(&q, "%s/%s", o_filename, p); 782 e = fetch(*argv, q); 783 free(q); 784 } else { 785 e = fetch(*argv, o_filename); 786 } 787 } else { 788 e = fetch(*argv, p); 789 } 790 791 if (sigint) 792 kill(getpid(), SIGINT); 793 794 if (e == 0 && once_flag) 795 exit(0); 796 797 if (e) { 798 r = 1; 799 if ((fetchLastErrCode 800 && fetchLastErrCode != FETCH_UNAVAIL 801 && fetchLastErrCode != FETCH_MOVED 802 && fetchLastErrCode != FETCH_URL 803 && fetchLastErrCode != FETCH_RESOLV 804 && fetchLastErrCode != FETCH_UNKNOWN)) { 805 if (w_secs && v_level) 806 fprintf(stderr, "Waiting %d seconds " 807 "before retrying\n", w_secs); 808 if (w_secs) 809 sleep(w_secs); 810 if (a_flag) 811 continue; 812 } 813 } 814 815 argc--, argv++; 816 } 817 818 exit(r); 819 } 820