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1.1 djm 1: /*
1.42 djm 2: * Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org>
1.1 djm 3: *
1.42 djm 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.
1.1 djm 7: *
1.42 djm 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.
1.1 djm 15: */
16:
17: #include "includes.h"
1.74 ! stevesk 18: RCSID("$OpenBSD: sftp.c,v 1.73 2006/02/10 01:44:27 stevesk Exp $");
1.1 djm 19:
1.72 stevesk 20: #include <sys/ioctl.h>
1.73 stevesk 21: #include <sys/types.h>
22: #include <sys/wait.h>
1.44 djm 23:
24: #include <glob.h>
1.57 djm 25: #include <histedit.h>
1.71 stevesk 26: #include <paths.h>
1.74 ! stevesk 27: #include <signal.h>
1.1 djm 28:
29: #include "buffer.h"
30: #include "xmalloc.h"
31: #include "log.h"
32: #include "pathnames.h"
1.16 mouring 33: #include "misc.h"
1.1 djm 34:
35: #include "sftp.h"
36: #include "sftp-common.h"
37: #include "sftp-client.h"
1.43 djm 38:
1.44 djm 39: /* File to read commands from */
40: FILE* infile;
1.15 mouring 41:
1.44 djm 42: /* Are we in batchfile mode? */
1.39 djm 43: int batchmode = 0;
1.44 djm 44:
45: /* Size of buffer used when copying files */
1.24 djm 46: size_t copy_buffer_len = 32768;
1.44 djm 47:
48: /* Number of concurrent outstanding requests */
1.26 djm 49: size_t num_requests = 16;
1.44 djm 50:
51: /* PID of ssh transport process */
1.36 djm 52: static pid_t sshpid = -1;
1.7 markus 53:
1.44 djm 54: /* This is set to 0 if the progressmeter is not desired. */
1.45 djm 55: int showprogress = 1;
1.44 djm 56:
1.46 djm 57: /* SIGINT received during command processing */
58: volatile sig_atomic_t interrupted = 0;
59:
1.52 djm 60: /* I wish qsort() took a separate ctx for the comparison function...*/
61: int sort_flag;
62:
1.44 djm 63: int remote_glob(struct sftp_conn *, const char *, int,
64: int (*)(const char *, int), glob_t *); /* proto for sftp-glob.c */
65:
66: /* Separators for interactive commands */
67: #define WHITESPACE " \t\r\n"
68:
1.52 djm 69: /* ls flags */
1.53 djm 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 */
1.54 djm 77: #define LS_SHOW_ALL 0x80 /* Don't skip filenames starting with '.' */
1.52 djm 78:
1.53 djm 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)
1.44 djm 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
1.46 djm 151: killchild(int signo)
152: {
1.61 dtucker 153: if (sshpid > 1) {
1.46 djm 154: kill(sshpid, SIGTERM);
1.61 dtucker 155: waitpid(sshpid, NULL, 0);
156: }
1.46 djm 157:
158: _exit(1);
159: }
160:
161: static void
162: cmd_interrupt(int signo)
163: {
164: const char msg[] = "\rInterrupt \n";
1.59 djm 165: int olderrno = errno;
1.46 djm 166:
167: write(STDERR_FILENO, msg, sizeof(msg) - 1);
168: interrupted = 1;
1.59 djm 169: errno = olderrno;
1.46 djm 170: }
171:
172: static void
1.44 djm 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);
1.59 djm 269: if (strncmp(path, strip, len) == 0) {
1.44 djm 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: {
1.51 avsm 296: char *abs_str;
1.44 djm 297:
298: /* Derelativise */
299: if (p && p[0] != '/') {
1.51 avsm 300: abs_str = path_append(pwd, p);
1.44 djm 301: xfree(p);
1.51 avsm 302: return(abs_str);
1.44 djm 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:
1.52 djm 355: /* Defaults */
1.53 djm 356: *lflag = LS_NAME_SORT;
1.52 djm 357:
1.44 djm 358: /* Check for flags */
359: if (cp++[0] == '-') {
1.63 deraadt 360: for (; strchr(WHITESPACE, *cp) == NULL; cp++) {
1.44 djm 361: switch (*cp) {
362: case 'l':
1.50 djm 363: *lflag &= ~VIEW_FLAGS;
1.53 djm 364: *lflag |= LS_LONG_VIEW;
1.44 djm 365: break;
366: case '1':
1.50 djm 367: *lflag &= ~VIEW_FLAGS;
1.53 djm 368: *lflag |= LS_SHORT_VIEW;
1.50 djm 369: break;
370: case 'n':
371: *lflag &= ~VIEW_FLAGS;
1.53 djm 372: *lflag |= LS_NUMERIC_VIEW|LS_LONG_VIEW;
1.44 djm 373: break;
1.52 djm 374: case 'S':
375: *lflag &= ~SORT_FLAGS;
1.53 djm 376: *lflag |= LS_SIZE_SORT;
1.52 djm 377: break;
378: case 't':
379: *lflag &= ~SORT_FLAGS;
1.53 djm 380: *lflag |= LS_TIME_SORT;
1.52 djm 381: break;
382: case 'r':
1.53 djm 383: *lflag |= LS_REVERSE_SORT;
1.52 djm 384: break;
385: case 'f':
386: *lflag &= ~SORT_FLAGS;
387: break;
1.54 djm 388: case 'a':
389: *lflag |= LS_SHOW_ALL;
390: break;
1.44 djm 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;
1.64 djm 407: u_int i, j;
1.44 djm 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] != '\\') {
1.55 djm 437: error("Bad escaped character '\\%c'",
1.44 djm 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:
1.46 djm 533: for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1.44 djm 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:
1.46 djm 602: for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1.44 djm 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;
1.53 djm 650: int rmul = sort_flag & LS_REVERSE_SORT ? -1 : 1;
1.44 djm 651:
1.52 djm 652: #define NCMP(a,b) (a == b ? 0 : (a < b ? 1 : -1))
1.53 djm 653: if (sort_flag & LS_NAME_SORT)
1.52 djm 654: return (rmul * strcmp(a->filename, b->filename));
1.53 djm 655: else if (sort_flag & LS_TIME_SORT)
1.52 djm 656: return (rmul * NCMP(a->a.mtime, b->a.mtime));
1.53 djm 657: else if (sort_flag & LS_SIZE_SORT)
1.52 djm 658: return (rmul * NCMP(a->a.size, b->a.size));
659:
660: fatal("Unknown ls sort type");
1.44 djm 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: {
1.64 djm 667: int n;
668: u_int c = 1, colspace = 0, columns = 1;
1.44 djm 669: SFTP_DIRENT **d;
670:
671: if ((n = do_readdir(conn, path, &d)) != 0)
672: return (n);
673:
1.53 djm 674: if (!(lflag & LS_SHORT_VIEW)) {
1.64 djm 675: u_int m = 0, width = 80;
1.44 djm 676: struct winsize ws;
677: char *tmp;
678:
679: /* Count entries for sort and find longest filename */
1.54 djm 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: }
1.44 djm 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:
1.52 djm 699: if (lflag & SORT_FLAGS) {
1.68 dtucker 700: for (n = 0; d[n] != NULL; n++)
701: ; /* count entries */
1.53 djm 702: sort_flag = lflag & (SORT_FLAGS|LS_REVERSE_SORT);
1.52 djm 703: qsort(d, n, sizeof(*d), sdirent_comp);
704: }
1.44 djm 705:
1.46 djm 706: for (n = 0; d[n] != NULL && !interrupted; n++) {
1.44 djm 707: char *tmp, *fname;
1.54 djm 708:
709: if (d[n]->filename[0] == '.' && !(lflag & LS_SHOW_ALL))
710: continue;
1.44 djm 711:
712: tmp = path_append(path, d[n]->filename);
713: fname = path_strip(tmp, strip_path);
714: xfree(tmp);
715:
1.53 djm 716: if (lflag & LS_LONG_VIEW) {
717: if (lflag & LS_NUMERIC_VIEW) {
1.50 djm 718: char *lname;
719: struct stat sb;
720:
721: memset(&sb, 0, sizeof(sb));
722: attrib_to_stat(&d[n]->a, &sb);
723: lname = ls_file(fname, &sb, 1);
724: printf("%s\n", lname);
725: xfree(lname);
726: } else
727: printf("%s\n", d[n]->longname);
1.44 djm 728: } else {
729: printf("%-*s", colspace, fname);
730: if (c >= columns) {
731: printf("\n");
732: c = 1;
733: } else
734: c++;
735: }
736:
737: xfree(fname);
738: }
739:
1.53 djm 740: if (!(lflag & LS_LONG_VIEW) && (c != 1))
1.44 djm 741: printf("\n");
742:
743: free_sftp_dirents(d);
744: return (0);
745: }
746:
747: /* sftp ls.1 replacement which handles path globs */
748: static int
749: do_globbed_ls(struct sftp_conn *conn, char *path, char *strip_path,
750: int lflag)
751: {
752: glob_t g;
1.64 djm 753: u_int i, c = 1, colspace = 0, columns = 1;
1.60 fgsch 754: Attrib *a = NULL;
1.44 djm 755:
756: memset(&g, 0, sizeof(g));
757:
758: if (remote_glob(conn, path, GLOB_MARK|GLOB_NOCHECK|GLOB_BRACE,
1.60 fgsch 759: NULL, &g) || (g.gl_pathc && !g.gl_matchc)) {
760: if (g.gl_pathc)
761: globfree(&g);
1.44 djm 762: error("Can't ls: \"%s\" not found", path);
763: return (-1);
764: }
765:
1.46 djm 766: if (interrupted)
767: goto out;
768:
1.44 djm 769: /*
1.60 fgsch 770: * If the glob returns a single match and it is a directory,
771: * then just list its contents.
1.44 djm 772: */
1.60 fgsch 773: if (g.gl_matchc == 1) {
774: if ((a = do_lstat(conn, g.gl_pathv[0], 1)) == NULL) {
1.44 djm 775: globfree(&g);
776: return (-1);
777: }
778: if ((a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) &&
779: S_ISDIR(a->perm)) {
1.60 fgsch 780: int err;
781:
782: err = do_ls_dir(conn, g.gl_pathv[0], strip_path, lflag);
1.44 djm 783: globfree(&g);
1.60 fgsch 784: return (err);
1.44 djm 785: }
786: }
787:
1.53 djm 788: if (!(lflag & LS_SHORT_VIEW)) {
1.64 djm 789: u_int m = 0, width = 80;
1.44 djm 790: struct winsize ws;
791:
792: /* Count entries for sort and find longest filename */
793: for (i = 0; g.gl_pathv[i]; i++)
794: m = MAX(m, strlen(g.gl_pathv[i]));
795:
796: if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1)
797: width = ws.ws_col;
798:
799: columns = width / (m + 2);
800: columns = MAX(columns, 1);
801: colspace = width / columns;
802: }
803:
1.60 fgsch 804: for (i = 0; g.gl_pathv[i] && !interrupted; i++, a = NULL) {
1.44 djm 805: char *fname;
806:
807: fname = path_strip(g.gl_pathv[i], strip_path);
808:
1.53 djm 809: if (lflag & LS_LONG_VIEW) {
1.44 djm 810: char *lname;
811: struct stat sb;
812:
813: /*
814: * XXX: this is slow - 1 roundtrip per path
815: * A solution to this is to fork glob() and
816: * build a sftp specific version which keeps the
817: * attribs (which currently get thrown away)
818: * that the server returns as well as the filenames.
819: */
820: memset(&sb, 0, sizeof(sb));
1.60 fgsch 821: if (a == NULL)
822: a = do_lstat(conn, g.gl_pathv[i], 1);
1.44 djm 823: if (a != NULL)
824: attrib_to_stat(a, &sb);
825: lname = ls_file(fname, &sb, 1);
826: printf("%s\n", lname);
827: xfree(lname);
828: } else {
829: printf("%-*s", colspace, fname);
830: if (c >= columns) {
831: printf("\n");
832: c = 1;
833: } else
834: c++;
835: }
836: xfree(fname);
837: }
838:
1.53 djm 839: if (!(lflag & LS_LONG_VIEW) && (c != 1))
1.44 djm 840: printf("\n");
841:
1.46 djm 842: out:
1.44 djm 843: if (g.gl_pathc)
844: globfree(&g);
845:
846: return (0);
847: }
848:
849: static int
850: parse_args(const char **cpp, int *pflag, int *lflag, int *iflag,
851: unsigned long *n_arg, char **path1, char **path2)
852: {
853: const char *cmd, *cp = *cpp;
854: char *cp2;
855: int base = 0;
856: long l;
857: int i, cmdnum;
858:
859: /* Skip leading whitespace */
860: cp = cp + strspn(cp, WHITESPACE);
861:
862: /* Ignore blank lines and lines which begin with comment '#' char */
863: if (*cp == '\0' || *cp == '#')
864: return (0);
865:
866: /* Check for leading '-' (disable error processing) */
867: *iflag = 0;
868: if (*cp == '-') {
869: *iflag = 1;
870: cp++;
871: }
872:
873: /* Figure out which command we have */
874: for (i = 0; cmds[i].c; i++) {
875: int cmdlen = strlen(cmds[i].c);
876:
877: /* Check for command followed by whitespace */
878: if (!strncasecmp(cp, cmds[i].c, cmdlen) &&
879: strchr(WHITESPACE, cp[cmdlen])) {
880: cp += cmdlen;
881: cp = cp + strspn(cp, WHITESPACE);
882: break;
883: }
884: }
885: cmdnum = cmds[i].n;
886: cmd = cmds[i].c;
887:
888: /* Special case */
889: if (*cp == '!') {
890: cp++;
891: cmdnum = I_SHELL;
892: } else if (cmdnum == -1) {
893: error("Invalid command.");
894: return (-1);
895: }
896:
897: /* Get arguments and parse flags */
898: *lflag = *pflag = *n_arg = 0;
899: *path1 = *path2 = NULL;
900: switch (cmdnum) {
901: case I_GET:
902: case I_PUT:
903: if (parse_getput_flags(&cp, pflag))
904: return(-1);
905: /* Get first pathname (mandatory) */
906: if (get_pathname(&cp, path1))
907: return(-1);
908: if (*path1 == NULL) {
909: error("You must specify at least one path after a "
910: "%s command.", cmd);
911: return(-1);
912: }
913: /* Try to get second pathname (optional) */
914: if (get_pathname(&cp, path2))
915: return(-1);
916: break;
917: case I_RENAME:
918: case I_SYMLINK:
919: if (get_pathname(&cp, path1))
920: return(-1);
921: if (get_pathname(&cp, path2))
922: return(-1);
923: if (!*path1 || !*path2) {
924: error("You must specify two paths after a %s "
925: "command.", cmd);
926: return(-1);
927: }
928: break;
929: case I_RM:
930: case I_MKDIR:
931: case I_RMDIR:
932: case I_CHDIR:
933: case I_LCHDIR:
934: case I_LMKDIR:
935: /* Get pathname (mandatory) */
936: if (get_pathname(&cp, path1))
937: return(-1);
938: if (*path1 == NULL) {
939: error("You must specify a path after a %s command.",
940: cmd);
941: return(-1);
942: }
943: break;
944: case I_LS:
945: if (parse_ls_flags(&cp, lflag))
946: return(-1);
947: /* Path is optional */
948: if (get_pathname(&cp, path1))
949: return(-1);
950: break;
951: case I_LLS:
952: case I_SHELL:
953: /* Uses the rest of the line */
954: break;
955: case I_LUMASK:
956: base = 8;
957: case I_CHMOD:
958: base = 8;
959: case I_CHOWN:
960: case I_CHGRP:
961: /* Get numeric arg (mandatory) */
962: l = strtol(cp, &cp2, base);
963: if (cp2 == cp || ((l == LONG_MIN || l == LONG_MAX) &&
964: errno == ERANGE) || l < 0) {
965: error("You must supply a numeric argument "
966: "to the %s command.", cmd);
967: return(-1);
968: }
969: cp = cp2;
970: *n_arg = l;
971: if (cmdnum == I_LUMASK && strchr(WHITESPACE, *cp))
972: break;
973: if (cmdnum == I_LUMASK || !strchr(WHITESPACE, *cp)) {
974: error("You must supply a numeric argument "
975: "to the %s command.", cmd);
976: return(-1);
977: }
978: cp += strspn(cp, WHITESPACE);
979:
980: /* Get pathname (mandatory) */
981: if (get_pathname(&cp, path1))
982: return(-1);
983: if (*path1 == NULL) {
984: error("You must specify a path after a %s command.",
985: cmd);
986: return(-1);
987: }
988: break;
989: case I_QUIT:
990: case I_PWD:
991: case I_LPWD:
992: case I_HELP:
993: case I_VERSION:
994: case I_PROGRESS:
995: break;
996: default:
997: fatal("Command not implemented");
998: }
999:
1000: *cpp = cp;
1001: return(cmdnum);
1002: }
1003:
1004: static int
1005: parse_dispatch_command(struct sftp_conn *conn, const char *cmd, char **pwd,
1006: int err_abort)
1007: {
1008: char *path1, *path2, *tmp;
1009: int pflag, lflag, iflag, cmdnum, i;
1010: unsigned long n_arg;
1011: Attrib a, *aa;
1012: char path_buf[MAXPATHLEN];
1013: int err = 0;
1014: glob_t g;
1015:
1016: path1 = path2 = NULL;
1017: cmdnum = parse_args(&cmd, &pflag, &lflag, &iflag, &n_arg,
1018: &path1, &path2);
1019:
1020: if (iflag != 0)
1021: err_abort = 0;
1022:
1023: memset(&g, 0, sizeof(g));
1024:
1025: /* Perform command */
1026: switch (cmdnum) {
1027: case 0:
1028: /* Blank line */
1029: break;
1030: case -1:
1031: /* Unrecognized command */
1032: err = -1;
1033: break;
1034: case I_GET:
1035: err = process_get(conn, path1, path2, *pwd, pflag);
1036: break;
1037: case I_PUT:
1038: err = process_put(conn, path1, path2, *pwd, pflag);
1039: break;
1040: case I_RENAME:
1041: path1 = make_absolute(path1, *pwd);
1042: path2 = make_absolute(path2, *pwd);
1043: err = do_rename(conn, path1, path2);
1044: break;
1045: case I_SYMLINK:
1046: path2 = make_absolute(path2, *pwd);
1047: err = do_symlink(conn, path1, path2);
1048: break;
1049: case I_RM:
1050: path1 = make_absolute(path1, *pwd);
1051: remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
1.46 djm 1052: for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1.44 djm 1053: printf("Removing %s\n", g.gl_pathv[i]);
1054: err = do_rm(conn, g.gl_pathv[i]);
1055: if (err != 0 && err_abort)
1056: break;
1057: }
1058: break;
1059: case I_MKDIR:
1060: path1 = make_absolute(path1, *pwd);
1061: attrib_clear(&a);
1062: a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
1063: a.perm = 0777;
1064: err = do_mkdir(conn, path1, &a);
1065: break;
1066: case I_RMDIR:
1067: path1 = make_absolute(path1, *pwd);
1068: err = do_rmdir(conn, path1);
1069: break;
1070: case I_CHDIR:
1071: path1 = make_absolute(path1, *pwd);
1072: if ((tmp = do_realpath(conn, path1)) == NULL) {
1073: err = 1;
1074: break;
1075: }
1076: if ((aa = do_stat(conn, tmp, 0)) == NULL) {
1077: xfree(tmp);
1078: err = 1;
1079: break;
1080: }
1081: if (!(aa->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)) {
1082: error("Can't change directory: Can't check target");
1083: xfree(tmp);
1084: err = 1;
1085: break;
1086: }
1087: if (!S_ISDIR(aa->perm)) {
1088: error("Can't change directory: \"%s\" is not "
1089: "a directory", tmp);
1090: xfree(tmp);
1091: err = 1;
1092: break;
1093: }
1094: xfree(*pwd);
1095: *pwd = tmp;
1096: break;
1097: case I_LS:
1098: if (!path1) {
1099: do_globbed_ls(conn, *pwd, *pwd, lflag);
1100: break;
1101: }
1102:
1103: /* Strip pwd off beginning of non-absolute paths */
1104: tmp = NULL;
1105: if (*path1 != '/')
1106: tmp = *pwd;
1107:
1108: path1 = make_absolute(path1, *pwd);
1109: err = do_globbed_ls(conn, path1, tmp, lflag);
1110: break;
1111: case I_LCHDIR:
1112: if (chdir(path1) == -1) {
1113: error("Couldn't change local directory to "
1114: "\"%s\": %s", path1, strerror(errno));
1115: err = 1;
1116: }
1117: break;
1118: case I_LMKDIR:
1119: if (mkdir(path1, 0777) == -1) {
1120: error("Couldn't create local directory "
1121: "\"%s\": %s", path1, strerror(errno));
1122: err = 1;
1123: }
1124: break;
1125: case I_LLS:
1126: local_do_ls(cmd);
1127: break;
1128: case I_SHELL:
1129: local_do_shell(cmd);
1130: break;
1131: case I_LUMASK:
1132: umask(n_arg);
1133: printf("Local umask: %03lo\n", n_arg);
1134: break;
1135: case I_CHMOD:
1136: path1 = make_absolute(path1, *pwd);
1137: attrib_clear(&a);
1138: a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
1139: a.perm = n_arg;
1140: remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
1.46 djm 1141: for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1.44 djm 1142: printf("Changing mode on %s\n", g.gl_pathv[i]);
1143: err = do_setstat(conn, g.gl_pathv[i], &a);
1144: if (err != 0 && err_abort)
1145: break;
1146: }
1147: break;
1148: case I_CHOWN:
1149: case I_CHGRP:
1150: path1 = make_absolute(path1, *pwd);
1151: remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
1.46 djm 1152: for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1.44 djm 1153: if (!(aa = do_stat(conn, g.gl_pathv[i], 0))) {
1154: if (err != 0 && err_abort)
1155: break;
1156: else
1157: continue;
1158: }
1159: if (!(aa->flags & SSH2_FILEXFER_ATTR_UIDGID)) {
1160: error("Can't get current ownership of "
1161: "remote file \"%s\"", g.gl_pathv[i]);
1162: if (err != 0 && err_abort)
1163: break;
1164: else
1165: continue;
1166: }
1167: aa->flags &= SSH2_FILEXFER_ATTR_UIDGID;
1168: if (cmdnum == I_CHOWN) {
1169: printf("Changing owner on %s\n", g.gl_pathv[i]);
1170: aa->uid = n_arg;
1171: } else {
1172: printf("Changing group on %s\n", g.gl_pathv[i]);
1173: aa->gid = n_arg;
1174: }
1175: err = do_setstat(conn, g.gl_pathv[i], aa);
1176: if (err != 0 && err_abort)
1177: break;
1178: }
1179: break;
1180: case I_PWD:
1181: printf("Remote working directory: %s\n", *pwd);
1182: break;
1183: case I_LPWD:
1184: if (!getcwd(path_buf, sizeof(path_buf))) {
1185: error("Couldn't get local cwd: %s", strerror(errno));
1186: err = -1;
1187: break;
1188: }
1189: printf("Local working directory: %s\n", path_buf);
1190: break;
1191: case I_QUIT:
1192: /* Processed below */
1193: break;
1194: case I_HELP:
1195: help();
1196: break;
1197: case I_VERSION:
1198: printf("SFTP protocol version %u\n", sftp_proto_version(conn));
1199: break;
1200: case I_PROGRESS:
1201: showprogress = !showprogress;
1202: if (showprogress)
1203: printf("Progress meter enabled\n");
1204: else
1205: printf("Progress meter disabled\n");
1206: break;
1207: default:
1208: fatal("%d is not implemented", cmdnum);
1209: }
1210:
1211: if (g.gl_pathc)
1212: globfree(&g);
1213: if (path1)
1214: xfree(path1);
1215: if (path2)
1216: xfree(path2);
1217:
1218: /* If an unignored error occurs in batch mode we should abort. */
1219: if (err_abort && err != 0)
1220: return (-1);
1221: else if (cmdnum == I_QUIT)
1222: return (1);
1223:
1224: return (0);
1225: }
1226:
1.57 djm 1227: static char *
1228: prompt(EditLine *el)
1229: {
1230: return ("sftp> ");
1231: }
1232:
1.44 djm 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;
1.66 jaredy 1240: int err, interactive;
1.57 djm 1241: EditLine *el = NULL;
1242: History *hl = NULL;
1243: HistEvent hev;
1244: extern char *__progname;
1245:
1246: if (!batchmode && isatty(STDIN_FILENO)) {
1247: if ((el = el_init(__progname, stdin, stdout, stderr)) == NULL)
1248: fatal("Couldn't initialise editline");
1249: if ((hl = history_init()) == NULL)
1250: fatal("Couldn't initialise editline history");
1251: history(hl, &hev, H_SETSIZE, 100);
1252: el_set(el, EL_HIST, history, hl);
1253:
1254: el_set(el, EL_PROMPT, prompt);
1255: el_set(el, EL_EDITOR, "emacs");
1256: el_set(el, EL_TERMINAL, NULL);
1257: el_set(el, EL_SIGNAL, 1);
1258: el_source(el, NULL);
1259: }
1.44 djm 1260:
1261: conn = do_init(fd_in, fd_out, copy_buffer_len, num_requests);
1262: if (conn == NULL)
1263: fatal("Couldn't initialise connection to server");
1264:
1265: pwd = do_realpath(conn, ".");
1266: if (pwd == NULL)
1267: fatal("Need cwd");
1268:
1269: if (file1 != NULL) {
1270: dir = xstrdup(file1);
1271: dir = make_absolute(dir, pwd);
1272:
1273: if (remote_is_dir(conn, dir) && file2 == NULL) {
1274: printf("Changing to: %s\n", dir);
1275: snprintf(cmd, sizeof cmd, "cd \"%s\"", dir);
1.58 markus 1276: if (parse_dispatch_command(conn, cmd, &pwd, 1) != 0) {
1277: xfree(dir);
1278: xfree(pwd);
1.44 djm 1279: return (-1);
1.58 markus 1280: }
1.44 djm 1281: } else {
1282: if (file2 == NULL)
1283: snprintf(cmd, sizeof cmd, "get %s", dir);
1284: else
1285: snprintf(cmd, sizeof cmd, "get %s %s", dir,
1286: file2);
1287:
1288: err = parse_dispatch_command(conn, cmd, &pwd, 1);
1289: xfree(dir);
1290: xfree(pwd);
1291: return (err);
1292: }
1293: xfree(dir);
1294: }
1295:
1296: setvbuf(stdout, NULL, _IOLBF, 0);
1297: setvbuf(infile, NULL, _IOLBF, 0);
1298:
1.66 jaredy 1299: interactive = !batchmode && isatty(STDIN_FILENO);
1.44 djm 1300: err = 0;
1301: for (;;) {
1302: char *cp;
1.57 djm 1303: const char *line;
1304: int count = 0;
1.44 djm 1305:
1.46 djm 1306: signal(SIGINT, SIG_IGN);
1307:
1.57 djm 1308: if (el == NULL) {
1.66 jaredy 1309: if (interactive)
1310: printf("sftp> ");
1.57 djm 1311: if (fgets(cmd, sizeof(cmd), infile) == NULL) {
1.66 jaredy 1312: if (interactive)
1313: printf("\n");
1.57 djm 1314: break;
1315: }
1.66 jaredy 1316: if (!interactive) { /* Echo command */
1317: printf("sftp> %s", cmd);
1318: if (strlen(cmd) > 0 &&
1319: cmd[strlen(cmd) - 1] != '\n')
1320: printf("\n");
1321: }
1.57 djm 1322: } else {
1.66 jaredy 1323: if ((line = el_gets(el, &count)) == NULL || count <= 0) {
1324: printf("\n");
1.57 djm 1325: break;
1.66 jaredy 1326: }
1.57 djm 1327: history(hl, &hev, H_ENTER, line);
1328: if (strlcpy(cmd, line, sizeof(cmd)) >= sizeof(cmd)) {
1329: fprintf(stderr, "Error: input line too long\n");
1330: continue;
1331: }
1.44 djm 1332: }
1333:
1334: cp = strrchr(cmd, '\n');
1335: if (cp)
1336: *cp = '\0';
1337:
1.46 djm 1338: /* Handle user interrupts gracefully during commands */
1339: interrupted = 0;
1340: signal(SIGINT, cmd_interrupt);
1341:
1.44 djm 1342: err = parse_dispatch_command(conn, cmd, &pwd, batchmode);
1343: if (err != 0)
1344: break;
1345: }
1346: xfree(pwd);
1.66 jaredy 1347:
1348: if (el != NULL)
1349: el_end(el);
1.44 djm 1350:
1351: /* err == 1 signifies normal "quit" exit */
1352: return (err >= 0 ? 0 : -1);
1353: }
1.34 fgsch 1354:
1.18 itojun 1355: static void
1.36 djm 1356: connect_to_server(char *path, char **args, int *in, int *out)
1.1 djm 1357: {
1358: int c_in, c_out;
1.30 deraadt 1359:
1.1 djm 1360: #ifdef USE_PIPES
1361: int pin[2], pout[2];
1.30 deraadt 1362:
1.1 djm 1363: if ((pipe(pin) == -1) || (pipe(pout) == -1))
1364: fatal("pipe: %s", strerror(errno));
1365: *in = pin[0];
1366: *out = pout[1];
1367: c_in = pout[0];
1368: c_out = pin[1];
1369: #else /* USE_PIPES */
1370: int inout[2];
1.30 deraadt 1371:
1.1 djm 1372: if (socketpair(AF_UNIX, SOCK_STREAM, 0, inout) == -1)
1373: fatal("socketpair: %s", strerror(errno));
1374: *in = *out = inout[0];
1375: c_in = c_out = inout[1];
1376: #endif /* USE_PIPES */
1377:
1.36 djm 1378: if ((sshpid = fork()) == -1)
1.1 djm 1379: fatal("fork: %s", strerror(errno));
1.36 djm 1380: else if (sshpid == 0) {
1.1 djm 1381: if ((dup2(c_in, STDIN_FILENO) == -1) ||
1382: (dup2(c_out, STDOUT_FILENO) == -1)) {
1383: fprintf(stderr, "dup2: %s\n", strerror(errno));
1.47 djm 1384: _exit(1);
1.1 djm 1385: }
1386: close(*in);
1387: close(*out);
1388: close(c_in);
1389: close(c_out);
1.46 djm 1390:
1391: /*
1392: * The underlying ssh is in the same process group, so we must
1.56 deraadt 1393: * ignore SIGINT if we want to gracefully abort commands,
1394: * otherwise the signal will make it to the ssh process and
1.46 djm 1395: * kill it too
1396: */
1397: signal(SIGINT, SIG_IGN);
1.49 dtucker 1398: execvp(path, args);
1.23 djm 1399: fprintf(stderr, "exec: %s: %s\n", path, strerror(errno));
1.47 djm 1400: _exit(1);
1.1 djm 1401: }
1402:
1.36 djm 1403: signal(SIGTERM, killchild);
1404: signal(SIGINT, killchild);
1405: signal(SIGHUP, killchild);
1.1 djm 1406: close(c_in);
1407: close(c_out);
1408: }
1409:
1.18 itojun 1410: static void
1.1 djm 1411: usage(void)
1412: {
1.25 mpech 1413: extern char *__progname;
1.27 markus 1414:
1.19 stevesk 1415: fprintf(stderr,
1.38 jmc 1416: "usage: %s [-1Cv] [-B buffer_size] [-b batchfile] [-F ssh_config]\n"
1417: " [-o ssh_option] [-P sftp_server_path] [-R num_requests]\n"
1418: " [-S program] [-s subsystem | sftp_server] host\n"
1419: " %s [[user@]host[:file [file]]]\n"
1420: " %s [[user@]host[:dir[/]]]\n"
1421: " %s -b batchfile [user@]host\n", __progname, __progname, __progname, __progname);
1.1 djm 1422: exit(1);
1423: }
1424:
1.2 stevesk 1425: int
1.1 djm 1426: main(int argc, char **argv)
1427: {
1.33 djm 1428: int in, out, ch, err;
1.48 pedro 1429: char *host, *userhost, *cp, *file2 = NULL;
1.17 mouring 1430: int debug_level = 0, sshver = 2;
1431: char *file1 = NULL, *sftp_server = NULL;
1.23 djm 1432: char *ssh_program = _PATH_SSH_PROGRAM, *sftp_direct = NULL;
1.17 mouring 1433: LogLevel ll = SYSLOG_LEVEL_INFO;
1434: arglist args;
1.3 djm 1435: extern int optind;
1436: extern char *optarg;
1.67 djm 1437:
1438: /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */
1439: sanitise_stdfd();
1.1 djm 1440:
1.70 djm 1441: memset(&args, '\0', sizeof(args));
1.17 mouring 1442: args.list = NULL;
1.70 djm 1443: addargs(&args, ssh_program);
1.17 mouring 1444: addargs(&args, "-oForwardX11 no");
1445: addargs(&args, "-oForwardAgent no");
1.69 reyk 1446: addargs(&args, "-oPermitLocalCommand no");
1.21 stevesk 1447: addargs(&args, "-oClearAllForwardings yes");
1.40 djm 1448:
1.17 mouring 1449: ll = SYSLOG_LEVEL_INFO;
1.40 djm 1450: infile = stdin;
1.3 djm 1451:
1.26 djm 1452: while ((ch = getopt(argc, argv, "1hvCo:s:S:b:B:F:P:R:")) != -1) {
1.3 djm 1453: switch (ch) {
1454: case 'C':
1.17 mouring 1455: addargs(&args, "-C");
1.3 djm 1456: break;
1457: case 'v':
1.17 mouring 1458: if (debug_level < 3) {
1459: addargs(&args, "-v");
1460: ll = SYSLOG_LEVEL_DEBUG1 + debug_level;
1461: }
1462: debug_level++;
1.3 djm 1463: break;
1.19 stevesk 1464: case 'F':
1.3 djm 1465: case 'o':
1.19 stevesk 1466: addargs(&args, "-%c%s", ch, optarg);
1.7 markus 1467: break;
1468: case '1':
1.17 mouring 1469: sshver = 1;
1.7 markus 1470: if (sftp_server == NULL)
1471: sftp_server = _PATH_SFTP_SERVER;
1472: break;
1473: case 's':
1474: sftp_server = optarg;
1475: break;
1476: case 'S':
1477: ssh_program = optarg;
1.70 djm 1478: replacearg(&args, 0, "%s", ssh_program);
1.3 djm 1479: break;
1.10 deraadt 1480: case 'b':
1.39 djm 1481: if (batchmode)
1482: fatal("Batch file already specified.");
1483:
1484: /* Allow "-" as stdin */
1.56 deraadt 1485: if (strcmp(optarg, "-") != 0 &&
1.65 djm 1486: (infile = fopen(optarg, "r")) == NULL)
1.39 djm 1487: fatal("%s (%s).", strerror(errno), optarg);
1.34 fgsch 1488: showprogress = 0;
1.39 djm 1489: batchmode = 1;
1.62 djm 1490: addargs(&args, "-obatchmode yes");
1.10 deraadt 1491: break;
1.23 djm 1492: case 'P':
1493: sftp_direct = optarg;
1.24 djm 1494: break;
1495: case 'B':
1496: copy_buffer_len = strtol(optarg, &cp, 10);
1497: if (copy_buffer_len == 0 || *cp != '\0')
1498: fatal("Invalid buffer size \"%s\"", optarg);
1.26 djm 1499: break;
1500: case 'R':
1501: num_requests = strtol(optarg, &cp, 10);
1502: if (num_requests == 0 || *cp != '\0')
1.27 markus 1503: fatal("Invalid number of requests \"%s\"",
1.26 djm 1504: optarg);
1.23 djm 1505: break;
1.3 djm 1506: case 'h':
1507: default:
1.1 djm 1508: usage();
1509: }
1510: }
1.45 djm 1511:
1512: if (!isatty(STDERR_FILENO))
1513: showprogress = 0;
1.1 djm 1514:
1.29 markus 1515: log_init(argv[0], ll, SYSLOG_FACILITY_USER, 1);
1516:
1.23 djm 1517: if (sftp_direct == NULL) {
1518: if (optind == argc || argc > (optind + 2))
1519: usage();
1520:
1521: userhost = xstrdup(argv[optind]);
1522: file2 = argv[optind+1];
1.1 djm 1523:
1.32 markus 1524: if ((host = strrchr(userhost, '@')) == NULL)
1.23 djm 1525: host = userhost;
1526: else {
1527: *host++ = '\0';
1528: if (!userhost[0]) {
1529: fprintf(stderr, "Missing username\n");
1530: usage();
1531: }
1532: addargs(&args, "-l%s",userhost);
1.41 djm 1533: }
1534:
1535: if ((cp = colon(host)) != NULL) {
1536: *cp++ = '\0';
1537: file1 = cp;
1.23 djm 1538: }
1.3 djm 1539:
1.23 djm 1540: host = cleanhostname(host);
1541: if (!*host) {
1542: fprintf(stderr, "Missing hostname\n");
1.1 djm 1543: usage();
1544: }
1545:
1.23 djm 1546: addargs(&args, "-oProtocol %d", sshver);
1547:
1548: /* no subsystem if the server-spec contains a '/' */
1549: if (sftp_server == NULL || strchr(sftp_server, '/') == NULL)
1550: addargs(&args, "-s");
1551:
1552: addargs(&args, "%s", host);
1.27 markus 1553: addargs(&args, "%s", (sftp_server != NULL ?
1.23 djm 1554: sftp_server : "sftp"));
1555:
1.39 djm 1556: if (!batchmode)
1557: fprintf(stderr, "Connecting to %s...\n", host);
1.36 djm 1558: connect_to_server(ssh_program, args.list, &in, &out);
1.23 djm 1559: } else {
1560: args.list = NULL;
1561: addargs(&args, "sftp-server");
1562:
1.39 djm 1563: if (!batchmode)
1564: fprintf(stderr, "Attaching to %s...\n", sftp_direct);
1.36 djm 1565: connect_to_server(sftp_direct, args.list, &in, &out);
1.1 djm 1566: }
1.70 djm 1567: freeargs(&args);
1.1 djm 1568:
1.33 djm 1569: err = interactive_loop(in, out, file1, file2);
1.1 djm 1570:
1571: close(in);
1572: close(out);
1.39 djm 1573: if (batchmode)
1.10 deraadt 1574: fclose(infile);
1.1 djm 1575:
1.28 markus 1576: while (waitpid(sshpid, NULL, 0) == -1)
1577: if (errno != EINTR)
1578: fatal("Couldn't wait for ssh process: %s",
1579: strerror(errno));
1.1 djm 1580:
1.33 djm 1581: exit(err == 0 ? 0 : 1);
1.1 djm 1582: }