1 /* 2 * Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org> 3 * 4 * Permission to use, copy, modify, and distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 #include "includes.h" 18 19 RCSID("$OpenBSD: sftp.c,v 1.66 2005/08/08 13:22:48 jaredy Exp $"); 20 21 #ifdef USE_LIBEDIT 22 #include <histedit.h> 23 #else 24 typedef void EditLine; 25 #endif 26 27 #include "buffer.h" 28 #include "xmalloc.h" 29 #include "log.h" 30 #include "pathnames.h" 31 #include "misc.h" 32 33 #include "sftp.h" 34 #include "sftp-common.h" 35 #include "sftp-client.h" 36 37 /* File to read commands from */ 38 FILE* infile; 39 40 /* Are we in batchfile mode? */ 41 int batchmode = 0; 42 43 /* Size of buffer used when copying files */ 44 size_t copy_buffer_len = 32768; 45 46 /* Number of concurrent outstanding requests */ 47 size_t num_requests = 16; 48 49 /* PID of ssh transport process */ 50 static pid_t sshpid = -1; 51 52 /* This is set to 0 if the progressmeter is not desired. */ 53 int showprogress = 1; 54 55 /* SIGINT received during command processing */ 56 volatile sig_atomic_t interrupted = 0; 57 58 /* I wish qsort() took a separate ctx for the comparison function...*/ 59 int sort_flag; 60 61 int remote_glob(struct sftp_conn *, const char *, int, 62 int (*)(const char *, int), glob_t *); /* proto for sftp-glob.c */ 63 64 extern char *__progname; 65 66 /* Separators for interactive commands */ 67 #define WHITESPACE " \t\r\n" 68 69 /* ls flags */ 70 #define LS_LONG_VIEW 0x01 /* Full view ala ls -l */ 71 #define LS_SHORT_VIEW 0x02 /* Single row view ala ls -1 */ 72 #define LS_NUMERIC_VIEW 0x04 /* Long view with numeric uid/gid */ 73 #define LS_NAME_SORT 0x08 /* Sort by name (default) */ 74 #define LS_TIME_SORT 0x10 /* Sort by mtime */ 75 #define LS_SIZE_SORT 0x20 /* Sort by file size */ 76 #define LS_REVERSE_SORT 0x40 /* Reverse sort order */ 77 #define LS_SHOW_ALL 0x80 /* Don't skip filenames starting with '.' */ 78 79 #define VIEW_FLAGS (LS_LONG_VIEW|LS_SHORT_VIEW|LS_NUMERIC_VIEW) 80 #define SORT_FLAGS (LS_NAME_SORT|LS_TIME_SORT|LS_SIZE_SORT) 81 82 /* Commands for interactive mode */ 83 #define I_CHDIR 1 84 #define I_CHGRP 2 85 #define I_CHMOD 3 86 #define I_CHOWN 4 87 #define I_GET 5 88 #define I_HELP 6 89 #define I_LCHDIR 7 90 #define I_LLS 8 91 #define I_LMKDIR 9 92 #define I_LPWD 10 93 #define I_LS 11 94 #define I_LUMASK 12 95 #define I_MKDIR 13 96 #define I_PUT 14 97 #define I_PWD 15 98 #define I_QUIT 16 99 #define I_RENAME 17 100 #define I_RM 18 101 #define I_RMDIR 19 102 #define I_SHELL 20 103 #define I_SYMLINK 21 104 #define I_VERSION 22 105 #define I_PROGRESS 23 106 107 struct CMD { 108 const char *c; 109 const int n; 110 }; 111 112 static const struct CMD cmds[] = { 113 { "bye", I_QUIT }, 114 { "cd", I_CHDIR }, 115 { "chdir", I_CHDIR }, 116 { "chgrp", I_CHGRP }, 117 { "chmod", I_CHMOD }, 118 { "chown", I_CHOWN }, 119 { "dir", I_LS }, 120 { "exit", I_QUIT }, 121 { "get", I_GET }, 122 { "mget", I_GET }, 123 { "help", I_HELP }, 124 { "lcd", I_LCHDIR }, 125 { "lchdir", I_LCHDIR }, 126 { "lls", I_LLS }, 127 { "lmkdir", I_LMKDIR }, 128 { "ln", I_SYMLINK }, 129 { "lpwd", I_LPWD }, 130 { "ls", I_LS }, 131 { "lumask", I_LUMASK }, 132 { "mkdir", I_MKDIR }, 133 { "progress", I_PROGRESS }, 134 { "put", I_PUT }, 135 { "mput", I_PUT }, 136 { "pwd", I_PWD }, 137 { "quit", I_QUIT }, 138 { "rename", I_RENAME }, 139 { "rm", I_RM }, 140 { "rmdir", I_RMDIR }, 141 { "symlink", I_SYMLINK }, 142 { "version", I_VERSION }, 143 { "!", I_SHELL }, 144 { "?", I_HELP }, 145 { NULL, -1} 146 }; 147 148 int interactive_loop(int fd_in, int fd_out, char *file1, char *file2); 149 150 static void 151 killchild(int signo) 152 { 153 if (sshpid > 1) { 154 kill(sshpid, SIGTERM); 155 waitpid(sshpid, NULL, 0); 156 } 157 158 _exit(1); 159 } 160 161 static void 162 cmd_interrupt(int signo) 163 { 164 const char msg[] = "\rInterrupt \n"; 165 int olderrno = errno; 166 167 write(STDERR_FILENO, msg, sizeof(msg) - 1); 168 interrupted = 1; 169 errno = olderrno; 170 } 171 172 static void 173 help(void) 174 { 175 printf("Available commands:\n"); 176 printf("cd path Change remote directory to 'path'\n"); 177 printf("lcd path Change local directory to 'path'\n"); 178 printf("chgrp grp path Change group of file 'path' to 'grp'\n"); 179 printf("chmod mode path Change permissions of file 'path' to 'mode'\n"); 180 printf("chown own path Change owner of file 'path' to 'own'\n"); 181 printf("help Display this help text\n"); 182 printf("get remote-path [local-path] Download file\n"); 183 printf("lls [ls-options [path]] Display local directory listing\n"); 184 printf("ln oldpath newpath Symlink remote file\n"); 185 printf("lmkdir path Create local directory\n"); 186 printf("lpwd Print local working directory\n"); 187 printf("ls [path] Display remote directory listing\n"); 188 printf("lumask umask Set local umask to 'umask'\n"); 189 printf("mkdir path Create remote directory\n"); 190 printf("progress Toggle display of progress meter\n"); 191 printf("put local-path [remote-path] Upload file\n"); 192 printf("pwd Display remote working directory\n"); 193 printf("exit Quit sftp\n"); 194 printf("quit Quit sftp\n"); 195 printf("rename oldpath newpath Rename remote file\n"); 196 printf("rmdir path Remove remote directory\n"); 197 printf("rm path Delete remote file\n"); 198 printf("symlink oldpath newpath Symlink remote file\n"); 199 printf("version Show SFTP version\n"); 200 printf("!command Execute 'command' in local shell\n"); 201 printf("! Escape to local shell\n"); 202 printf("? Synonym for help\n"); 203 } 204 205 static void 206 local_do_shell(const char *args) 207 { 208 int status; 209 char *shell; 210 pid_t pid; 211 212 if (!*args) 213 args = NULL; 214 215 if ((shell = getenv("SHELL")) == NULL) 216 shell = _PATH_BSHELL; 217 218 if ((pid = fork()) == -1) 219 fatal("Couldn't fork: %s", strerror(errno)); 220 221 if (pid == 0) { 222 /* XXX: child has pipe fds to ssh subproc open - issue? */ 223 if (args) { 224 debug3("Executing %s -c \"%s\"", shell, args); 225 execl(shell, shell, "-c", args, (char *)NULL); 226 } else { 227 debug3("Executing %s", shell); 228 execl(shell, shell, (char *)NULL); 229 } 230 fprintf(stderr, "Couldn't execute \"%s\": %s\n", shell, 231 strerror(errno)); 232 _exit(1); 233 } 234 while (waitpid(pid, &status, 0) == -1) 235 if (errno != EINTR) 236 fatal("Couldn't wait for child: %s", strerror(errno)); 237 if (!WIFEXITED(status)) 238 error("Shell exited abormally"); 239 else if (WEXITSTATUS(status)) 240 error("Shell exited with status %d", WEXITSTATUS(status)); 241 } 242 243 static void 244 local_do_ls(const char *args) 245 { 246 if (!args || !*args) 247 local_do_shell(_PATH_LS); 248 else { 249 int len = strlen(_PATH_LS " ") + strlen(args) + 1; 250 char *buf = xmalloc(len); 251 252 /* XXX: quoting - rip quoting code from ftp? */ 253 snprintf(buf, len, _PATH_LS " %s", args); 254 local_do_shell(buf); 255 xfree(buf); 256 } 257 } 258 259 /* Strip one path (usually the pwd) from the start of another */ 260 static char * 261 path_strip(char *path, char *strip) 262 { 263 size_t len; 264 265 if (strip == NULL) 266 return (xstrdup(path)); 267 268 len = strlen(strip); 269 if (strncmp(path, strip, len) == 0) { 270 if (strip[len - 1] != '/' && path[len] == '/') 271 len++; 272 return (xstrdup(path + len)); 273 } 274 275 return (xstrdup(path)); 276 } 277 278 static char * 279 path_append(char *p1, char *p2) 280 { 281 char *ret; 282 int len = strlen(p1) + strlen(p2) + 2; 283 284 ret = xmalloc(len); 285 strlcpy(ret, p1, len); 286 if (p1[strlen(p1) - 1] != '/') 287 strlcat(ret, "/", len); 288 strlcat(ret, p2, len); 289 290 return(ret); 291 } 292 293 static char * 294 make_absolute(char *p, char *pwd) 295 { 296 char *abs_str; 297 298 /* Derelativise */ 299 if (p && p[0] != '/') { 300 abs_str = path_append(pwd, p); 301 xfree(p); 302 return(abs_str); 303 } else 304 return(p); 305 } 306 307 static int 308 infer_path(const char *p, char **ifp) 309 { 310 char *cp; 311 312 cp = strrchr(p, '/'); 313 if (cp == NULL) { 314 *ifp = xstrdup(p); 315 return(0); 316 } 317 318 if (!cp[1]) { 319 error("Invalid path"); 320 return(-1); 321 } 322 323 *ifp = xstrdup(cp + 1); 324 return(0); 325 } 326 327 static int 328 parse_getput_flags(const char **cpp, int *pflag) 329 { 330 const char *cp = *cpp; 331 332 /* Check for flags */ 333 if (cp[0] == '-' && cp[1] && strchr(WHITESPACE, cp[2])) { 334 switch (cp[1]) { 335 case 'p': 336 case 'P': 337 *pflag = 1; 338 break; 339 default: 340 error("Invalid flag -%c", cp[1]); 341 return(-1); 342 } 343 cp += 2; 344 *cpp = cp + strspn(cp, WHITESPACE); 345 } 346 347 return(0); 348 } 349 350 static int 351 parse_ls_flags(const char **cpp, int *lflag) 352 { 353 const char *cp = *cpp; 354 355 /* Defaults */ 356 *lflag = LS_NAME_SORT; 357 358 /* Check for flags */ 359 if (cp++[0] == '-') { 360 for (; strchr(WHITESPACE, *cp) == NULL; cp++) { 361 switch (*cp) { 362 case 'l': 363 *lflag &= ~VIEW_FLAGS; 364 *lflag |= LS_LONG_VIEW; 365 break; 366 case '1': 367 *lflag &= ~VIEW_FLAGS; 368 *lflag |= LS_SHORT_VIEW; 369 break; 370 case 'n': 371 *lflag &= ~VIEW_FLAGS; 372 *lflag |= LS_NUMERIC_VIEW|LS_LONG_VIEW; 373 break; 374 case 'S': 375 *lflag &= ~SORT_FLAGS; 376 *lflag |= LS_SIZE_SORT; 377 break; 378 case 't': 379 *lflag &= ~SORT_FLAGS; 380 *lflag |= LS_TIME_SORT; 381 break; 382 case 'r': 383 *lflag |= LS_REVERSE_SORT; 384 break; 385 case 'f': 386 *lflag &= ~SORT_FLAGS; 387 break; 388 case 'a': 389 *lflag |= LS_SHOW_ALL; 390 break; 391 default: 392 error("Invalid flag -%c", *cp); 393 return(-1); 394 } 395 } 396 *cpp = cp + strspn(cp, WHITESPACE); 397 } 398 399 return(0); 400 } 401 402 static int 403 get_pathname(const char **cpp, char **path) 404 { 405 const char *cp = *cpp, *end; 406 char quot; 407 u_int i, j; 408 409 cp += strspn(cp, WHITESPACE); 410 if (!*cp) { 411 *cpp = cp; 412 *path = NULL; 413 return (0); 414 } 415 416 *path = xmalloc(strlen(cp) + 1); 417 418 /* Check for quoted filenames */ 419 if (*cp == '\"' || *cp == '\'') { 420 quot = *cp++; 421 422 /* Search for terminating quote, unescape some chars */ 423 for (i = j = 0; i <= strlen(cp); i++) { 424 if (cp[i] == quot) { /* Found quote */ 425 i++; 426 (*path)[j] = '\0'; 427 break; 428 } 429 if (cp[i] == '\0') { /* End of string */ 430 error("Unterminated quote"); 431 goto fail; 432 } 433 if (cp[i] == '\\') { /* Escaped characters */ 434 i++; 435 if (cp[i] != '\'' && cp[i] != '\"' && 436 cp[i] != '\\') { 437 error("Bad escaped character '\\%c'", 438 cp[i]); 439 goto fail; 440 } 441 } 442 (*path)[j++] = cp[i]; 443 } 444 445 if (j == 0) { 446 error("Empty quotes"); 447 goto fail; 448 } 449 *cpp = cp + i + strspn(cp + i, WHITESPACE); 450 } else { 451 /* Read to end of filename */ 452 end = strpbrk(cp, WHITESPACE); 453 if (end == NULL) 454 end = strchr(cp, '\0'); 455 *cpp = end + strspn(end, WHITESPACE); 456 457 memcpy(*path, cp, end - cp); 458 (*path)[end - cp] = '\0'; 459 } 460 return (0); 461 462 fail: 463 xfree(*path); 464 *path = NULL; 465 return (-1); 466 } 467 468 static int 469 is_dir(char *path) 470 { 471 struct stat sb; 472 473 /* XXX: report errors? */ 474 if (stat(path, &sb) == -1) 475 return(0); 476 477 return(sb.st_mode & S_IFDIR); 478 } 479 480 static int 481 is_reg(char *path) 482 { 483 struct stat sb; 484 485 if (stat(path, &sb) == -1) 486 fatal("stat %s: %s", path, strerror(errno)); 487 488 return(S_ISREG(sb.st_mode)); 489 } 490 491 static int 492 remote_is_dir(struct sftp_conn *conn, char *path) 493 { 494 Attrib *a; 495 496 /* XXX: report errors? */ 497 if ((a = do_stat(conn, path, 1)) == NULL) 498 return(0); 499 if (!(a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)) 500 return(0); 501 return(a->perm & S_IFDIR); 502 } 503 504 static int 505 process_get(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag) 506 { 507 char *abs_src = NULL; 508 char *abs_dst = NULL; 509 char *tmp; 510 glob_t g; 511 int err = 0; 512 int i; 513 514 abs_src = xstrdup(src); 515 abs_src = make_absolute(abs_src, pwd); 516 517 memset(&g, 0, sizeof(g)); 518 debug3("Looking up %s", abs_src); 519 if (remote_glob(conn, abs_src, 0, NULL, &g)) { 520 error("File \"%s\" not found.", abs_src); 521 err = -1; 522 goto out; 523 } 524 525 /* If multiple matches, dst must be a directory or unspecified */ 526 if (g.gl_matchc > 1 && dst && !is_dir(dst)) { 527 error("Multiple files match, but \"%s\" is not a directory", 528 dst); 529 err = -1; 530 goto out; 531 } 532 533 for (i = 0; g.gl_pathv[i] && !interrupted; i++) { 534 if (infer_path(g.gl_pathv[i], &tmp)) { 535 err = -1; 536 goto out; 537 } 538 539 if (g.gl_matchc == 1 && dst) { 540 /* If directory specified, append filename */ 541 if (is_dir(dst)) { 542 if (infer_path(g.gl_pathv[0], &tmp)) { 543 err = 1; 544 goto out; 545 } 546 abs_dst = path_append(dst, tmp); 547 xfree(tmp); 548 } else 549 abs_dst = xstrdup(dst); 550 } else if (dst) { 551 abs_dst = path_append(dst, tmp); 552 xfree(tmp); 553 } else 554 abs_dst = tmp; 555 556 printf("Fetching %s to %s\n", g.gl_pathv[i], abs_dst); 557 if (do_download(conn, g.gl_pathv[i], abs_dst, pflag) == -1) 558 err = -1; 559 xfree(abs_dst); 560 abs_dst = NULL; 561 } 562 563 out: 564 xfree(abs_src); 565 if (abs_dst) 566 xfree(abs_dst); 567 globfree(&g); 568 return(err); 569 } 570 571 static int 572 process_put(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag) 573 { 574 char *tmp_dst = NULL; 575 char *abs_dst = NULL; 576 char *tmp; 577 glob_t g; 578 int err = 0; 579 int i; 580 581 if (dst) { 582 tmp_dst = xstrdup(dst); 583 tmp_dst = make_absolute(tmp_dst, pwd); 584 } 585 586 memset(&g, 0, sizeof(g)); 587 debug3("Looking up %s", src); 588 if (glob(src, 0, NULL, &g)) { 589 error("File \"%s\" not found.", src); 590 err = -1; 591 goto out; 592 } 593 594 /* If multiple matches, dst may be directory or unspecified */ 595 if (g.gl_matchc > 1 && tmp_dst && !remote_is_dir(conn, tmp_dst)) { 596 error("Multiple files match, but \"%s\" is not a directory", 597 tmp_dst); 598 err = -1; 599 goto out; 600 } 601 602 for (i = 0; g.gl_pathv[i] && !interrupted; i++) { 603 if (!is_reg(g.gl_pathv[i])) { 604 error("skipping non-regular file %s", 605 g.gl_pathv[i]); 606 continue; 607 } 608 if (infer_path(g.gl_pathv[i], &tmp)) { 609 err = -1; 610 goto out; 611 } 612 613 if (g.gl_matchc == 1 && tmp_dst) { 614 /* If directory specified, append filename */ 615 if (remote_is_dir(conn, tmp_dst)) { 616 if (infer_path(g.gl_pathv[0], &tmp)) { 617 err = 1; 618 goto out; 619 } 620 abs_dst = path_append(tmp_dst, tmp); 621 xfree(tmp); 622 } else 623 abs_dst = xstrdup(tmp_dst); 624 625 } else if (tmp_dst) { 626 abs_dst = path_append(tmp_dst, tmp); 627 xfree(tmp); 628 } else 629 abs_dst = make_absolute(tmp, pwd); 630 631 printf("Uploading %s to %s\n", g.gl_pathv[i], abs_dst); 632 if (do_upload(conn, g.gl_pathv[i], abs_dst, pflag) == -1) 633 err = -1; 634 } 635 636 out: 637 if (abs_dst) 638 xfree(abs_dst); 639 if (tmp_dst) 640 xfree(tmp_dst); 641 globfree(&g); 642 return(err); 643 } 644 645 static int 646 sdirent_comp(const void *aa, const void *bb) 647 { 648 SFTP_DIRENT *a = *(SFTP_DIRENT **)aa; 649 SFTP_DIRENT *b = *(SFTP_DIRENT **)bb; 650 int rmul = sort_flag & LS_REVERSE_SORT ? -1 : 1; 651 652 #define NCMP(a,b) (a == b ? 0 : (a < b ? 1 : -1)) 653 if (sort_flag & LS_NAME_SORT) 654 return (rmul * strcmp(a->filename, b->filename)); 655 else if (sort_flag & LS_TIME_SORT) 656 return (rmul * NCMP(a->a.mtime, b->a.mtime)); 657 else if (sort_flag & LS_SIZE_SORT) 658 return (rmul * NCMP(a->a.size, b->a.size)); 659 660 fatal("Unknown ls sort type"); 661 } 662 663 /* sftp ls.1 replacement for directories */ 664 static int 665 do_ls_dir(struct sftp_conn *conn, char *path, char *strip_path, int lflag) 666 { 667 int n; 668 u_int c = 1, colspace = 0, columns = 1; 669 SFTP_DIRENT **d; 670 671 if ((n = do_readdir(conn, path, &d)) != 0) 672 return (n); 673 674 if (!(lflag & LS_SHORT_VIEW)) { 675 u_int m = 0, width = 80; 676 struct winsize ws; 677 char *tmp; 678 679 /* Count entries for sort and find longest filename */ 680 for (n = 0; d[n] != NULL; n++) { 681 if (d[n]->filename[0] != '.' || (lflag & LS_SHOW_ALL)) 682 m = MAX(m, strlen(d[n]->filename)); 683 } 684 685 /* Add any subpath that also needs to be counted */ 686 tmp = path_strip(path, strip_path); 687 m += strlen(tmp); 688 xfree(tmp); 689 690 if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1) 691 width = ws.ws_col; 692 693 columns = width / (m + 2); 694 columns = MAX(columns, 1); 695 colspace = width / columns; 696 colspace = MIN(colspace, width); 697 } 698 699 if (lflag & SORT_FLAGS) { 700 sort_flag = lflag & (SORT_FLAGS|LS_REVERSE_SORT); 701 qsort(d, n, sizeof(*d), sdirent_comp); 702 } 703 704 for (n = 0; d[n] != NULL && !interrupted; n++) { 705 char *tmp, *fname; 706 707 if (d[n]->filename[0] == '.' && !(lflag & LS_SHOW_ALL)) 708 continue; 709 710 tmp = path_append(path, d[n]->filename); 711 fname = path_strip(tmp, strip_path); 712 xfree(tmp); 713 714 if (lflag & LS_LONG_VIEW) { 715 if (lflag & LS_NUMERIC_VIEW) { 716 char *lname; 717 struct stat sb; 718 719 memset(&sb, 0, sizeof(sb)); 720 attrib_to_stat(&d[n]->a, &sb); 721 lname = ls_file(fname, &sb, 1); 722 printf("%s\n", lname); 723 xfree(lname); 724 } else 725 printf("%s\n", d[n]->longname); 726 } else { 727 printf("%-*s", colspace, fname); 728 if (c >= columns) { 729 printf("\n"); 730 c = 1; 731 } else 732 c++; 733 } 734 735 xfree(fname); 736 } 737 738 if (!(lflag & LS_LONG_VIEW) && (c != 1)) 739 printf("\n"); 740 741 free_sftp_dirents(d); 742 return (0); 743 } 744 745 /* sftp ls.1 replacement which handles path globs */ 746 static int 747 do_globbed_ls(struct sftp_conn *conn, char *path, char *strip_path, 748 int lflag) 749 { 750 glob_t g; 751 u_int i, c = 1, colspace = 0, columns = 1; 752 Attrib *a = NULL; 753 754 memset(&g, 0, sizeof(g)); 755 756 if (remote_glob(conn, path, GLOB_MARK|GLOB_NOCHECK|GLOB_BRACE, 757 NULL, &g) || (g.gl_pathc && !g.gl_matchc)) { 758 if (g.gl_pathc) 759 globfree(&g); 760 error("Can't ls: \"%s\" not found", path); 761 return (-1); 762 } 763 764 if (interrupted) 765 goto out; 766 767 /* 768 * If the glob returns a single match and it is a directory, 769 * then just list its contents. 770 */ 771 if (g.gl_matchc == 1) { 772 if ((a = do_lstat(conn, g.gl_pathv[0], 1)) == NULL) { 773 globfree(&g); 774 return (-1); 775 } 776 if ((a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) && 777 S_ISDIR(a->perm)) { 778 int err; 779 780 err = do_ls_dir(conn, g.gl_pathv[0], strip_path, lflag); 781 globfree(&g); 782 return (err); 783 } 784 } 785 786 if (!(lflag & LS_SHORT_VIEW)) { 787 u_int m = 0, width = 80; 788 struct winsize ws; 789 790 /* Count entries for sort and find longest filename */ 791 for (i = 0; g.gl_pathv[i]; i++) 792 m = MAX(m, strlen(g.gl_pathv[i])); 793 794 if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1) 795 width = ws.ws_col; 796 797 columns = width / (m + 2); 798 columns = MAX(columns, 1); 799 colspace = width / columns; 800 } 801 802 for (i = 0; g.gl_pathv[i] && !interrupted; i++, a = NULL) { 803 char *fname; 804 805 fname = path_strip(g.gl_pathv[i], strip_path); 806 807 if (lflag & LS_LONG_VIEW) { 808 char *lname; 809 struct stat sb; 810 811 /* 812 * XXX: this is slow - 1 roundtrip per path 813 * A solution to this is to fork glob() and 814 * build a sftp specific version which keeps the 815 * attribs (which currently get thrown away) 816 * that the server returns as well as the filenames. 817 */ 818 memset(&sb, 0, sizeof(sb)); 819 if (a == NULL) 820 a = do_lstat(conn, g.gl_pathv[i], 1); 821 if (a != NULL) 822 attrib_to_stat(a, &sb); 823 lname = ls_file(fname, &sb, 1); 824 printf("%s\n", lname); 825 xfree(lname); 826 } else { 827 printf("%-*s", colspace, fname); 828 if (c >= columns) { 829 printf("\n"); 830 c = 1; 831 } else 832 c++; 833 } 834 xfree(fname); 835 } 836 837 if (!(lflag & LS_LONG_VIEW) && (c != 1)) 838 printf("\n"); 839 840 out: 841 if (g.gl_pathc) 842 globfree(&g); 843 844 return (0); 845 } 846 847 static int 848 parse_args(const char **cpp, int *pflag, int *lflag, int *iflag, 849 unsigned long *n_arg, char **path1, char **path2) 850 { 851 const char *cmd, *cp = *cpp; 852 char *cp2; 853 int base = 0; 854 long l; 855 int i, cmdnum; 856 857 /* Skip leading whitespace */ 858 cp = cp + strspn(cp, WHITESPACE); 859 860 /* Ignore blank lines and lines which begin with comment '#' char */ 861 if (*cp == '\0' || *cp == '#') 862 return (0); 863 864 /* Check for leading '-' (disable error processing) */ 865 *iflag = 0; 866 if (*cp == '-') { 867 *iflag = 1; 868 cp++; 869 } 870 871 /* Figure out which command we have */ 872 for (i = 0; cmds[i].c; i++) { 873 int cmdlen = strlen(cmds[i].c); 874 875 /* Check for command followed by whitespace */ 876 if (!strncasecmp(cp, cmds[i].c, cmdlen) && 877 strchr(WHITESPACE, cp[cmdlen])) { 878 cp += cmdlen; 879 cp = cp + strspn(cp, WHITESPACE); 880 break; 881 } 882 } 883 cmdnum = cmds[i].n; 884 cmd = cmds[i].c; 885 886 /* Special case */ 887 if (*cp == '!') { 888 cp++; 889 cmdnum = I_SHELL; 890 } else if (cmdnum == -1) { 891 error("Invalid command."); 892 return (-1); 893 } 894 895 /* Get arguments and parse flags */ 896 *lflag = *pflag = *n_arg = 0; 897 *path1 = *path2 = NULL; 898 switch (cmdnum) { 899 case I_GET: 900 case I_PUT: 901 if (parse_getput_flags(&cp, pflag)) 902 return(-1); 903 /* Get first pathname (mandatory) */ 904 if (get_pathname(&cp, path1)) 905 return(-1); 906 if (*path1 == NULL) { 907 error("You must specify at least one path after a " 908 "%s command.", cmd); 909 return(-1); 910 } 911 /* Try to get second pathname (optional) */ 912 if (get_pathname(&cp, path2)) 913 return(-1); 914 break; 915 case I_RENAME: 916 case I_SYMLINK: 917 if (get_pathname(&cp, path1)) 918 return(-1); 919 if (get_pathname(&cp, path2)) 920 return(-1); 921 if (!*path1 || !*path2) { 922 error("You must specify two paths after a %s " 923 "command.", cmd); 924 return(-1); 925 } 926 break; 927 case I_RM: 928 case I_MKDIR: 929 case I_RMDIR: 930 case I_CHDIR: 931 case I_LCHDIR: 932 case I_LMKDIR: 933 /* Get pathname (mandatory) */ 934 if (get_pathname(&cp, path1)) 935 return(-1); 936 if (*path1 == NULL) { 937 error("You must specify a path after a %s command.", 938 cmd); 939 return(-1); 940 } 941 break; 942 case I_LS: 943 if (parse_ls_flags(&cp, lflag)) 944 return(-1); 945 /* Path is optional */ 946 if (get_pathname(&cp, path1)) 947 return(-1); 948 break; 949 case I_LLS: 950 case I_SHELL: 951 /* Uses the rest of the line */ 952 break; 953 case I_LUMASK: 954 base = 8; 955 case I_CHMOD: 956 base = 8; 957 case I_CHOWN: 958 case I_CHGRP: 959 /* Get numeric arg (mandatory) */ 960 l = strtol(cp, &cp2, base); 961 if (cp2 == cp || ((l == LONG_MIN || l == LONG_MAX) && 962 errno == ERANGE) || l < 0) { 963 error("You must supply a numeric argument " 964 "to the %s command.", cmd); 965 return(-1); 966 } 967 cp = cp2; 968 *n_arg = l; 969 if (cmdnum == I_LUMASK && strchr(WHITESPACE, *cp)) 970 break; 971 if (cmdnum == I_LUMASK || !strchr(WHITESPACE, *cp)) { 972 error("You must supply a numeric argument " 973 "to the %s command.", cmd); 974 return(-1); 975 } 976 cp += strspn(cp, WHITESPACE); 977 978 /* Get pathname (mandatory) */ 979 if (get_pathname(&cp, path1)) 980 return(-1); 981 if (*path1 == NULL) { 982 error("You must specify a path after a %s command.", 983 cmd); 984 return(-1); 985 } 986 break; 987 case I_QUIT: 988 case I_PWD: 989 case I_LPWD: 990 case I_HELP: 991 case I_VERSION: 992 case I_PROGRESS: 993 break; 994 default: 995 fatal("Command not implemented"); 996 } 997 998 *cpp = cp; 999 return(cmdnum); 1000 } 1001 1002 static int 1003 parse_dispatch_command(struct sftp_conn *conn, const char *cmd, char **pwd, 1004 int err_abort) 1005 { 1006 char *path1, *path2, *tmp; 1007 int pflag, lflag, iflag, cmdnum, i; 1008 unsigned long n_arg; 1009 Attrib a, *aa; 1010 char path_buf[MAXPATHLEN]; 1011 int err = 0; 1012 glob_t g; 1013 1014 path1 = path2 = NULL; 1015 cmdnum = parse_args(&cmd, &pflag, &lflag, &iflag, &n_arg, 1016 &path1, &path2); 1017 1018 if (iflag != 0) 1019 err_abort = 0; 1020 1021 memset(&g, 0, sizeof(g)); 1022 1023 /* Perform command */ 1024 switch (cmdnum) { 1025 case 0: 1026 /* Blank line */ 1027 break; 1028 case -1: 1029 /* Unrecognized command */ 1030 err = -1; 1031 break; 1032 case I_GET: 1033 err = process_get(conn, path1, path2, *pwd, pflag); 1034 break; 1035 case I_PUT: 1036 err = process_put(conn, path1, path2, *pwd, pflag); 1037 break; 1038 case I_RENAME: 1039 path1 = make_absolute(path1, *pwd); 1040 path2 = make_absolute(path2, *pwd); 1041 err = do_rename(conn, path1, path2); 1042 break; 1043 case I_SYMLINK: 1044 path2 = make_absolute(path2, *pwd); 1045 err = do_symlink(conn, path1, path2); 1046 break; 1047 case I_RM: 1048 path1 = make_absolute(path1, *pwd); 1049 remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g); 1050 for (i = 0; g.gl_pathv[i] && !interrupted; i++) { 1051 printf("Removing %s\n", g.gl_pathv[i]); 1052 err = do_rm(conn, g.gl_pathv[i]); 1053 if (err != 0 && err_abort) 1054 break; 1055 } 1056 break; 1057 case I_MKDIR: 1058 path1 = make_absolute(path1, *pwd); 1059 attrib_clear(&a); 1060 a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS; 1061 a.perm = 0777; 1062 err = do_mkdir(conn, path1, &a); 1063 break; 1064 case I_RMDIR: 1065 path1 = make_absolute(path1, *pwd); 1066 err = do_rmdir(conn, path1); 1067 break; 1068 case I_CHDIR: 1069 path1 = make_absolute(path1, *pwd); 1070 if ((tmp = do_realpath(conn, path1)) == NULL) { 1071 err = 1; 1072 break; 1073 } 1074 if ((aa = do_stat(conn, tmp, 0)) == NULL) { 1075 xfree(tmp); 1076 err = 1; 1077 break; 1078 } 1079 if (!(aa->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)) { 1080 error("Can't change directory: Can't check target"); 1081 xfree(tmp); 1082 err = 1; 1083 break; 1084 } 1085 if (!S_ISDIR(aa->perm)) { 1086 error("Can't change directory: \"%s\" is not " 1087 "a directory", tmp); 1088 xfree(tmp); 1089 err = 1; 1090 break; 1091 } 1092 xfree(*pwd); 1093 *pwd = tmp; 1094 break; 1095 case I_LS: 1096 if (!path1) { 1097 do_globbed_ls(conn, *pwd, *pwd, lflag); 1098 break; 1099 } 1100 1101 /* Strip pwd off beginning of non-absolute paths */ 1102 tmp = NULL; 1103 if (*path1 != '/') 1104 tmp = *pwd; 1105 1106 path1 = make_absolute(path1, *pwd); 1107 err = do_globbed_ls(conn, path1, tmp, lflag); 1108 break; 1109 case I_LCHDIR: 1110 if (chdir(path1) == -1) { 1111 error("Couldn't change local directory to " 1112 "\"%s\": %s", path1, strerror(errno)); 1113 err = 1; 1114 } 1115 break; 1116 case I_LMKDIR: 1117 if (mkdir(path1, 0777) == -1) { 1118 error("Couldn't create local directory " 1119 "\"%s\": %s", path1, strerror(errno)); 1120 err = 1; 1121 } 1122 break; 1123 case I_LLS: 1124 local_do_ls(cmd); 1125 break; 1126 case I_SHELL: 1127 local_do_shell(cmd); 1128 break; 1129 case I_LUMASK: 1130 umask(n_arg); 1131 printf("Local umask: %03lo\n", n_arg); 1132 break; 1133 case I_CHMOD: 1134 path1 = make_absolute(path1, *pwd); 1135 attrib_clear(&a); 1136 a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS; 1137 a.perm = n_arg; 1138 remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g); 1139 for (i = 0; g.gl_pathv[i] && !interrupted; i++) { 1140 printf("Changing mode on %s\n", g.gl_pathv[i]); 1141 err = do_setstat(conn, g.gl_pathv[i], &a); 1142 if (err != 0 && err_abort) 1143 break; 1144 } 1145 break; 1146 case I_CHOWN: 1147 case I_CHGRP: 1148 path1 = make_absolute(path1, *pwd); 1149 remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g); 1150 for (i = 0; g.gl_pathv[i] && !interrupted; i++) { 1151 if (!(aa = do_stat(conn, g.gl_pathv[i], 0))) { 1152 if (err != 0 && err_abort) 1153 break; 1154 else 1155 continue; 1156 } 1157 if (!(aa->flags & SSH2_FILEXFER_ATTR_UIDGID)) { 1158 error("Can't get current ownership of " 1159 "remote file \"%s\"", g.gl_pathv[i]); 1160 if (err != 0 && err_abort) 1161 break; 1162 else 1163 continue; 1164 } 1165 aa->flags &= SSH2_FILEXFER_ATTR_UIDGID; 1166 if (cmdnum == I_CHOWN) { 1167 printf("Changing owner on %s\n", g.gl_pathv[i]); 1168 aa->uid = n_arg; 1169 } else { 1170 printf("Changing group on %s\n", g.gl_pathv[i]); 1171 aa->gid = n_arg; 1172 } 1173 err = do_setstat(conn, g.gl_pathv[i], aa); 1174 if (err != 0 && err_abort) 1175 break; 1176 } 1177 break; 1178 case I_PWD: 1179 printf("Remote working directory: %s\n", *pwd); 1180 break; 1181 case I_LPWD: 1182 if (!getcwd(path_buf, sizeof(path_buf))) { 1183 error("Couldn't get local cwd: %s", strerror(errno)); 1184 err = -1; 1185 break; 1186 } 1187 printf("Local working directory: %s\n", path_buf); 1188 break; 1189 case I_QUIT: 1190 /* Processed below */ 1191 break; 1192 case I_HELP: 1193 help(); 1194 break; 1195 case I_VERSION: 1196 printf("SFTP protocol version %u\n", sftp_proto_version(conn)); 1197 break; 1198 case I_PROGRESS: 1199 showprogress = !showprogress; 1200 if (showprogress) 1201 printf("Progress meter enabled\n"); 1202 else 1203 printf("Progress meter disabled\n"); 1204 break; 1205 default: 1206 fatal("%d is not implemented", cmdnum); 1207 } 1208 1209 if (g.gl_pathc) 1210 globfree(&g); 1211 if (path1) 1212 xfree(path1); 1213 if (path2) 1214 xfree(path2); 1215 1216 /* If an unignored error occurs in batch mode we should abort. */ 1217 if (err_abort && err != 0) 1218 return (-1); 1219 else if (cmdnum == I_QUIT) 1220 return (1); 1221 1222 return (0); 1223 } 1224 1225 #ifdef USE_LIBEDIT 1226 static char * 1227 prompt(EditLine *el) 1228 { 1229 return ("sftp> "); 1230 } 1231 #endif 1232 1233 int 1234 interactive_loop(int fd_in, int fd_out, char *file1, char *file2) 1235 { 1236 char *pwd; 1237 char *dir = NULL; 1238 char cmd[2048]; 1239 struct sftp_conn *conn; 1240 int err, interactive; 1241 EditLine *el = NULL; 1242 #ifdef USE_LIBEDIT 1243 History *hl = NULL; 1244 HistEvent hev; 1245 extern char *__progname; 1246 1247 if (!batchmode && isatty(STDIN_FILENO)) { 1248 if ((el = el_init(__progname, stdin, stdout, stderr)) == NULL) 1249 fatal("Couldn't initialise editline"); 1250 if ((hl = history_init()) == NULL) 1251 fatal("Couldn't initialise editline history"); 1252 history(hl, &hev, H_SETSIZE, 100); 1253 el_set(el, EL_HIST, history, hl); 1254 1255 el_set(el, EL_PROMPT, prompt); 1256 el_set(el, EL_EDITOR, "emacs"); 1257 el_set(el, EL_TERMINAL, NULL); 1258 el_set(el, EL_SIGNAL, 1); 1259 el_source(el, NULL); 1260 } 1261 #endif /* USE_LIBEDIT */ 1262 1263 conn = do_init(fd_in, fd_out, copy_buffer_len, num_requests); 1264 if (conn == NULL) 1265 fatal("Couldn't initialise connection to server"); 1266 1267 pwd = do_realpath(conn, "."); 1268 if (pwd == NULL) 1269 fatal("Need cwd"); 1270 1271 if (file1 != NULL) { 1272 dir = xstrdup(file1); 1273 dir = make_absolute(dir, pwd); 1274 1275 if (remote_is_dir(conn, dir) && file2 == NULL) { 1276 printf("Changing to: %s\n", dir); 1277 snprintf(cmd, sizeof cmd, "cd \"%s\"", dir); 1278 if (parse_dispatch_command(conn, cmd, &pwd, 1) != 0) { 1279 xfree(dir); 1280 xfree(pwd); 1281 return (-1); 1282 } 1283 } else { 1284 if (file2 == NULL) 1285 snprintf(cmd, sizeof cmd, "get %s", dir); 1286 else 1287 snprintf(cmd, sizeof cmd, "get %s %s", dir, 1288 file2); 1289 1290 err = parse_dispatch_command(conn, cmd, &pwd, 1); 1291 xfree(dir); 1292 xfree(pwd); 1293 return (err); 1294 } 1295 xfree(dir); 1296 } 1297 1298 #if defined(HAVE_SETVBUF) && !defined(BROKEN_SETVBUF) 1299 setvbuf(stdout, NULL, _IOLBF, 0); 1300 setvbuf(infile, NULL, _IOLBF, 0); 1301 #else 1302 setlinebuf(stdout); 1303 setlinebuf(infile); 1304 #endif 1305 1306 interactive = !batchmode && isatty(STDIN_FILENO); 1307 err = 0; 1308 for (;;) { 1309 char *cp; 1310 1311 signal(SIGINT, SIG_IGN); 1312 1313 if (el == NULL) { 1314 if (interactive) 1315 printf("sftp> "); 1316 if (fgets(cmd, sizeof(cmd), infile) == NULL) { 1317 if (interactive) 1318 printf("\n"); 1319 break; 1320 } 1321 if (!interactive) { /* Echo command */ 1322 printf("sftp> %s", cmd); 1323 if (strlen(cmd) > 0 && 1324 cmd[strlen(cmd) - 1] != '\n') 1325 printf("\n"); 1326 } 1327 } else { 1328 #ifdef USE_LIBEDIT 1329 const char *line; 1330 int count = 0; 1331 1332 if ((line = el_gets(el, &count)) == NULL || count <= 0) { 1333 printf("\n"); 1334 break; 1335 } 1336 history(hl, &hev, H_ENTER, line); 1337 if (strlcpy(cmd, line, sizeof(cmd)) >= sizeof(cmd)) { 1338 fprintf(stderr, "Error: input line too long\n"); 1339 continue; 1340 } 1341 #endif /* USE_LIBEDIT */ 1342 } 1343 1344 cp = strrchr(cmd, '\n'); 1345 if (cp) 1346 *cp = '\0'; 1347 1348 /* Handle user interrupts gracefully during commands */ 1349 interrupted = 0; 1350 signal(SIGINT, cmd_interrupt); 1351 1352 err = parse_dispatch_command(conn, cmd, &pwd, batchmode); 1353 if (err != 0) 1354 break; 1355 } 1356 xfree(pwd); 1357 1358 #ifdef USE_LIBEDIT 1359 if (el != NULL) 1360 el_end(el); 1361 #endif /* USE_LIBEDIT */ 1362 1363 /* err == 1 signifies normal "quit" exit */ 1364 return (err >= 0 ? 0 : -1); 1365 } 1366 1367 static void 1368 connect_to_server(char *path, char **args, int *in, int *out) 1369 { 1370 int c_in, c_out; 1371 1372 #ifdef USE_PIPES 1373 int pin[2], pout[2]; 1374 1375 if ((pipe(pin) == -1) || (pipe(pout) == -1)) 1376 fatal("pipe: %s", strerror(errno)); 1377 *in = pin[0]; 1378 *out = pout[1]; 1379 c_in = pout[0]; 1380 c_out = pin[1]; 1381 #else /* USE_PIPES */ 1382 int inout[2]; 1383 1384 if (socketpair(AF_UNIX, SOCK_STREAM, 0, inout) == -1) 1385 fatal("socketpair: %s", strerror(errno)); 1386 *in = *out = inout[0]; 1387 c_in = c_out = inout[1]; 1388 #endif /* USE_PIPES */ 1389 1390 if ((sshpid = fork()) == -1) 1391 fatal("fork: %s", strerror(errno)); 1392 else if (sshpid == 0) { 1393 if ((dup2(c_in, STDIN_FILENO) == -1) || 1394 (dup2(c_out, STDOUT_FILENO) == -1)) { 1395 fprintf(stderr, "dup2: %s\n", strerror(errno)); 1396 _exit(1); 1397 } 1398 close(*in); 1399 close(*out); 1400 close(c_in); 1401 close(c_out); 1402 1403 /* 1404 * The underlying ssh is in the same process group, so we must 1405 * ignore SIGINT if we want to gracefully abort commands, 1406 * otherwise the signal will make it to the ssh process and 1407 * kill it too 1408 */ 1409 signal(SIGINT, SIG_IGN); 1410 execvp(path, args); 1411 fprintf(stderr, "exec: %s: %s\n", path, strerror(errno)); 1412 _exit(1); 1413 } 1414 1415 signal(SIGTERM, killchild); 1416 signal(SIGINT, killchild); 1417 signal(SIGHUP, killchild); 1418 close(c_in); 1419 close(c_out); 1420 } 1421 1422 static void 1423 usage(void) 1424 { 1425 extern char *__progname; 1426 1427 fprintf(stderr, 1428 "usage: %s [-1Cv] [-B buffer_size] [-b batchfile] [-F ssh_config]\n" 1429 " [-o ssh_option] [-P sftp_server_path] [-R num_requests]\n" 1430 " [-S program] [-s subsystem | sftp_server] host\n" 1431 " %s [[user@]host[:file [file]]]\n" 1432 " %s [[user@]host[:dir[/]]]\n" 1433 " %s -b batchfile [user@]host\n", __progname, __progname, __progname, __progname); 1434 exit(1); 1435 } 1436 1437 int 1438 main(int argc, char **argv) 1439 { 1440 int in, out, ch, err; 1441 char *host, *userhost, *cp, *file2 = NULL; 1442 int debug_level = 0, sshver = 2; 1443 char *file1 = NULL, *sftp_server = NULL; 1444 char *ssh_program = _PATH_SSH_PROGRAM, *sftp_direct = NULL; 1445 LogLevel ll = SYSLOG_LEVEL_INFO; 1446 arglist args; 1447 extern int optind; 1448 extern char *optarg; 1449 1450 __progname = ssh_get_progname(argv[0]); 1451 args.list = NULL; 1452 addargs(&args, "ssh"); /* overwritten with ssh_program */ 1453 addargs(&args, "-oForwardX11 no"); 1454 addargs(&args, "-oForwardAgent no"); 1455 addargs(&args, "-oClearAllForwardings yes"); 1456 1457 ll = SYSLOG_LEVEL_INFO; 1458 infile = stdin; 1459 1460 while ((ch = getopt(argc, argv, "1hvCo:s:S:b:B:F:P:R:")) != -1) { 1461 switch (ch) { 1462 case 'C': 1463 addargs(&args, "-C"); 1464 break; 1465 case 'v': 1466 if (debug_level < 3) { 1467 addargs(&args, "-v"); 1468 ll = SYSLOG_LEVEL_DEBUG1 + debug_level; 1469 } 1470 debug_level++; 1471 break; 1472 case 'F': 1473 case 'o': 1474 addargs(&args, "-%c%s", ch, optarg); 1475 break; 1476 case '1': 1477 sshver = 1; 1478 if (sftp_server == NULL) 1479 sftp_server = _PATH_SFTP_SERVER; 1480 break; 1481 case 's': 1482 sftp_server = optarg; 1483 break; 1484 case 'S': 1485 ssh_program = optarg; 1486 break; 1487 case 'b': 1488 if (batchmode) 1489 fatal("Batch file already specified."); 1490 1491 /* Allow "-" as stdin */ 1492 if (strcmp(optarg, "-") != 0 && 1493 (infile = fopen(optarg, "r")) == NULL) 1494 fatal("%s (%s).", strerror(errno), optarg); 1495 showprogress = 0; 1496 batchmode = 1; 1497 addargs(&args, "-obatchmode yes"); 1498 break; 1499 case 'P': 1500 sftp_direct = optarg; 1501 break; 1502 case 'B': 1503 copy_buffer_len = strtol(optarg, &cp, 10); 1504 if (copy_buffer_len == 0 || *cp != '\0') 1505 fatal("Invalid buffer size \"%s\"", optarg); 1506 break; 1507 case 'R': 1508 num_requests = strtol(optarg, &cp, 10); 1509 if (num_requests == 0 || *cp != '\0') 1510 fatal("Invalid number of requests \"%s\"", 1511 optarg); 1512 break; 1513 case 'h': 1514 default: 1515 usage(); 1516 } 1517 } 1518 1519 if (!isatty(STDERR_FILENO)) 1520 showprogress = 0; 1521 1522 log_init(argv[0], ll, SYSLOG_FACILITY_USER, 1); 1523 1524 if (sftp_direct == NULL) { 1525 if (optind == argc || argc > (optind + 2)) 1526 usage(); 1527 1528 userhost = xstrdup(argv[optind]); 1529 file2 = argv[optind+1]; 1530 1531 if ((host = strrchr(userhost, '@')) == NULL) 1532 host = userhost; 1533 else { 1534 *host++ = '\0'; 1535 if (!userhost[0]) { 1536 fprintf(stderr, "Missing username\n"); 1537 usage(); 1538 } 1539 addargs(&args, "-l%s",userhost); 1540 } 1541 1542 if ((cp = colon(host)) != NULL) { 1543 *cp++ = '\0'; 1544 file1 = cp; 1545 } 1546 1547 host = cleanhostname(host); 1548 if (!*host) { 1549 fprintf(stderr, "Missing hostname\n"); 1550 usage(); 1551 } 1552 1553 addargs(&args, "-oProtocol %d", sshver); 1554 1555 /* no subsystem if the server-spec contains a '/' */ 1556 if (sftp_server == NULL || strchr(sftp_server, '/') == NULL) 1557 addargs(&args, "-s"); 1558 1559 addargs(&args, "%s", host); 1560 addargs(&args, "%s", (sftp_server != NULL ? 1561 sftp_server : "sftp")); 1562 args.list[0] = ssh_program; 1563 1564 if (!batchmode) 1565 fprintf(stderr, "Connecting to %s...\n", host); 1566 connect_to_server(ssh_program, args.list, &in, &out); 1567 } else { 1568 args.list = NULL; 1569 addargs(&args, "sftp-server"); 1570 1571 if (!batchmode) 1572 fprintf(stderr, "Attaching to %s...\n", sftp_direct); 1573 connect_to_server(sftp_direct, args.list, &in, &out); 1574 } 1575 1576 err = interactive_loop(in, out, file1, file2); 1577 1578 #if !defined(USE_PIPES) 1579 shutdown(in, SHUT_RDWR); 1580 shutdown(out, SHUT_RDWR); 1581 #endif 1582 1583 close(in); 1584 close(out); 1585 if (batchmode) 1586 fclose(infile); 1587 1588 while (waitpid(sshpid, NULL, 0) == -1) 1589 if (errno != EINTR) 1590 fatal("Couldn't wait for ssh process: %s", 1591 strerror(errno)); 1592 1593 exit(err == 0 ? 0 : 1); 1594 } 1595