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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"
18:
1.69 ! reyk 19: RCSID("$OpenBSD: sftp.c,v 1.68 2005/10/31 06:15:04 dtucker Exp $");
1.44 djm 20:
21: #include <glob.h>
1.57 djm 22: #include <histedit.h>
1.1 djm 23:
24: #include "buffer.h"
25: #include "xmalloc.h"
26: #include "log.h"
27: #include "pathnames.h"
1.16 mouring 28: #include "misc.h"
1.1 djm 29:
30: #include "sftp.h"
31: #include "sftp-common.h"
32: #include "sftp-client.h"
1.43 djm 33:
1.44 djm 34: /* File to read commands from */
35: FILE* infile;
1.15 mouring 36:
1.44 djm 37: /* Are we in batchfile mode? */
1.39 djm 38: int batchmode = 0;
1.44 djm 39:
40: /* Size of buffer used when copying files */
1.24 djm 41: size_t copy_buffer_len = 32768;
1.44 djm 42:
43: /* Number of concurrent outstanding requests */
1.26 djm 44: size_t num_requests = 16;
1.44 djm 45:
46: /* PID of ssh transport process */
1.36 djm 47: static pid_t sshpid = -1;
1.7 markus 48:
1.44 djm 49: /* This is set to 0 if the progressmeter is not desired. */
1.45 djm 50: int showprogress = 1;
1.44 djm 51:
1.46 djm 52: /* SIGINT received during command processing */
53: volatile sig_atomic_t interrupted = 0;
54:
1.52 djm 55: /* I wish qsort() took a separate ctx for the comparison function...*/
56: int sort_flag;
57:
1.44 djm 58: int remote_glob(struct sftp_conn *, const char *, int,
59: int (*)(const char *, int), glob_t *); /* proto for sftp-glob.c */
60:
61: /* Separators for interactive commands */
62: #define WHITESPACE " \t\r\n"
63:
1.52 djm 64: /* ls flags */
1.53 djm 65: #define LS_LONG_VIEW 0x01 /* Full view ala ls -l */
66: #define LS_SHORT_VIEW 0x02 /* Single row view ala ls -1 */
67: #define LS_NUMERIC_VIEW 0x04 /* Long view with numeric uid/gid */
68: #define LS_NAME_SORT 0x08 /* Sort by name (default) */
69: #define LS_TIME_SORT 0x10 /* Sort by mtime */
70: #define LS_SIZE_SORT 0x20 /* Sort by file size */
71: #define LS_REVERSE_SORT 0x40 /* Reverse sort order */
1.54 djm 72: #define LS_SHOW_ALL 0x80 /* Don't skip filenames starting with '.' */
1.52 djm 73:
1.53 djm 74: #define VIEW_FLAGS (LS_LONG_VIEW|LS_SHORT_VIEW|LS_NUMERIC_VIEW)
75: #define SORT_FLAGS (LS_NAME_SORT|LS_TIME_SORT|LS_SIZE_SORT)
1.44 djm 76:
77: /* Commands for interactive mode */
78: #define I_CHDIR 1
79: #define I_CHGRP 2
80: #define I_CHMOD 3
81: #define I_CHOWN 4
82: #define I_GET 5
83: #define I_HELP 6
84: #define I_LCHDIR 7
85: #define I_LLS 8
86: #define I_LMKDIR 9
87: #define I_LPWD 10
88: #define I_LS 11
89: #define I_LUMASK 12
90: #define I_MKDIR 13
91: #define I_PUT 14
92: #define I_PWD 15
93: #define I_QUIT 16
94: #define I_RENAME 17
95: #define I_RM 18
96: #define I_RMDIR 19
97: #define I_SHELL 20
98: #define I_SYMLINK 21
99: #define I_VERSION 22
100: #define I_PROGRESS 23
101:
102: struct CMD {
103: const char *c;
104: const int n;
105: };
106:
107: static const struct CMD cmds[] = {
108: { "bye", I_QUIT },
109: { "cd", I_CHDIR },
110: { "chdir", I_CHDIR },
111: { "chgrp", I_CHGRP },
112: { "chmod", I_CHMOD },
113: { "chown", I_CHOWN },
114: { "dir", I_LS },
115: { "exit", I_QUIT },
116: { "get", I_GET },
117: { "mget", I_GET },
118: { "help", I_HELP },
119: { "lcd", I_LCHDIR },
120: { "lchdir", I_LCHDIR },
121: { "lls", I_LLS },
122: { "lmkdir", I_LMKDIR },
123: { "ln", I_SYMLINK },
124: { "lpwd", I_LPWD },
125: { "ls", I_LS },
126: { "lumask", I_LUMASK },
127: { "mkdir", I_MKDIR },
128: { "progress", I_PROGRESS },
129: { "put", I_PUT },
130: { "mput", I_PUT },
131: { "pwd", I_PWD },
132: { "quit", I_QUIT },
133: { "rename", I_RENAME },
134: { "rm", I_RM },
135: { "rmdir", I_RMDIR },
136: { "symlink", I_SYMLINK },
137: { "version", I_VERSION },
138: { "!", I_SHELL },
139: { "?", I_HELP },
140: { NULL, -1}
141: };
142:
143: int interactive_loop(int fd_in, int fd_out, char *file1, char *file2);
144:
145: static void
1.46 djm 146: killchild(int signo)
147: {
1.61 dtucker 148: if (sshpid > 1) {
1.46 djm 149: kill(sshpid, SIGTERM);
1.61 dtucker 150: waitpid(sshpid, NULL, 0);
151: }
1.46 djm 152:
153: _exit(1);
154: }
155:
156: static void
157: cmd_interrupt(int signo)
158: {
159: const char msg[] = "\rInterrupt \n";
1.59 djm 160: int olderrno = errno;
1.46 djm 161:
162: write(STDERR_FILENO, msg, sizeof(msg) - 1);
163: interrupted = 1;
1.59 djm 164: errno = olderrno;
1.46 djm 165: }
166:
167: static void
1.44 djm 168: help(void)
169: {
170: printf("Available commands:\n");
171: printf("cd path Change remote directory to 'path'\n");
172: printf("lcd path Change local directory to 'path'\n");
173: printf("chgrp grp path Change group of file 'path' to 'grp'\n");
174: printf("chmod mode path Change permissions of file 'path' to 'mode'\n");
175: printf("chown own path Change owner of file 'path' to 'own'\n");
176: printf("help Display this help text\n");
177: printf("get remote-path [local-path] Download file\n");
178: printf("lls [ls-options [path]] Display local directory listing\n");
179: printf("ln oldpath newpath Symlink remote file\n");
180: printf("lmkdir path Create local directory\n");
181: printf("lpwd Print local working directory\n");
182: printf("ls [path] Display remote directory listing\n");
183: printf("lumask umask Set local umask to 'umask'\n");
184: printf("mkdir path Create remote directory\n");
185: printf("progress Toggle display of progress meter\n");
186: printf("put local-path [remote-path] Upload file\n");
187: printf("pwd Display remote working directory\n");
188: printf("exit Quit sftp\n");
189: printf("quit Quit sftp\n");
190: printf("rename oldpath newpath Rename remote file\n");
191: printf("rmdir path Remove remote directory\n");
192: printf("rm path Delete remote file\n");
193: printf("symlink oldpath newpath Symlink remote file\n");
194: printf("version Show SFTP version\n");
195: printf("!command Execute 'command' in local shell\n");
196: printf("! Escape to local shell\n");
197: printf("? Synonym for help\n");
198: }
199:
200: static void
201: local_do_shell(const char *args)
202: {
203: int status;
204: char *shell;
205: pid_t pid;
206:
207: if (!*args)
208: args = NULL;
209:
210: if ((shell = getenv("SHELL")) == NULL)
211: shell = _PATH_BSHELL;
212:
213: if ((pid = fork()) == -1)
214: fatal("Couldn't fork: %s", strerror(errno));
215:
216: if (pid == 0) {
217: /* XXX: child has pipe fds to ssh subproc open - issue? */
218: if (args) {
219: debug3("Executing %s -c \"%s\"", shell, args);
220: execl(shell, shell, "-c", args, (char *)NULL);
221: } else {
222: debug3("Executing %s", shell);
223: execl(shell, shell, (char *)NULL);
224: }
225: fprintf(stderr, "Couldn't execute \"%s\": %s\n", shell,
226: strerror(errno));
227: _exit(1);
228: }
229: while (waitpid(pid, &status, 0) == -1)
230: if (errno != EINTR)
231: fatal("Couldn't wait for child: %s", strerror(errno));
232: if (!WIFEXITED(status))
233: error("Shell exited abormally");
234: else if (WEXITSTATUS(status))
235: error("Shell exited with status %d", WEXITSTATUS(status));
236: }
237:
238: static void
239: local_do_ls(const char *args)
240: {
241: if (!args || !*args)
242: local_do_shell(_PATH_LS);
243: else {
244: int len = strlen(_PATH_LS " ") + strlen(args) + 1;
245: char *buf = xmalloc(len);
246:
247: /* XXX: quoting - rip quoting code from ftp? */
248: snprintf(buf, len, _PATH_LS " %s", args);
249: local_do_shell(buf);
250: xfree(buf);
251: }
252: }
253:
254: /* Strip one path (usually the pwd) from the start of another */
255: static char *
256: path_strip(char *path, char *strip)
257: {
258: size_t len;
259:
260: if (strip == NULL)
261: return (xstrdup(path));
262:
263: len = strlen(strip);
1.59 djm 264: if (strncmp(path, strip, len) == 0) {
1.44 djm 265: if (strip[len - 1] != '/' && path[len] == '/')
266: len++;
267: return (xstrdup(path + len));
268: }
269:
270: return (xstrdup(path));
271: }
272:
273: static char *
274: path_append(char *p1, char *p2)
275: {
276: char *ret;
277: int len = strlen(p1) + strlen(p2) + 2;
278:
279: ret = xmalloc(len);
280: strlcpy(ret, p1, len);
281: if (p1[strlen(p1) - 1] != '/')
282: strlcat(ret, "/", len);
283: strlcat(ret, p2, len);
284:
285: return(ret);
286: }
287:
288: static char *
289: make_absolute(char *p, char *pwd)
290: {
1.51 avsm 291: char *abs_str;
1.44 djm 292:
293: /* Derelativise */
294: if (p && p[0] != '/') {
1.51 avsm 295: abs_str = path_append(pwd, p);
1.44 djm 296: xfree(p);
1.51 avsm 297: return(abs_str);
1.44 djm 298: } else
299: return(p);
300: }
301:
302: static int
303: infer_path(const char *p, char **ifp)
304: {
305: char *cp;
306:
307: cp = strrchr(p, '/');
308: if (cp == NULL) {
309: *ifp = xstrdup(p);
310: return(0);
311: }
312:
313: if (!cp[1]) {
314: error("Invalid path");
315: return(-1);
316: }
317:
318: *ifp = xstrdup(cp + 1);
319: return(0);
320: }
321:
322: static int
323: parse_getput_flags(const char **cpp, int *pflag)
324: {
325: const char *cp = *cpp;
326:
327: /* Check for flags */
328: if (cp[0] == '-' && cp[1] && strchr(WHITESPACE, cp[2])) {
329: switch (cp[1]) {
330: case 'p':
331: case 'P':
332: *pflag = 1;
333: break;
334: default:
335: error("Invalid flag -%c", cp[1]);
336: return(-1);
337: }
338: cp += 2;
339: *cpp = cp + strspn(cp, WHITESPACE);
340: }
341:
342: return(0);
343: }
344:
345: static int
346: parse_ls_flags(const char **cpp, int *lflag)
347: {
348: const char *cp = *cpp;
349:
1.52 djm 350: /* Defaults */
1.53 djm 351: *lflag = LS_NAME_SORT;
1.52 djm 352:
1.44 djm 353: /* Check for flags */
354: if (cp++[0] == '-') {
1.63 deraadt 355: for (; strchr(WHITESPACE, *cp) == NULL; cp++) {
1.44 djm 356: switch (*cp) {
357: case 'l':
1.50 djm 358: *lflag &= ~VIEW_FLAGS;
1.53 djm 359: *lflag |= LS_LONG_VIEW;
1.44 djm 360: break;
361: case '1':
1.50 djm 362: *lflag &= ~VIEW_FLAGS;
1.53 djm 363: *lflag |= LS_SHORT_VIEW;
1.50 djm 364: break;
365: case 'n':
366: *lflag &= ~VIEW_FLAGS;
1.53 djm 367: *lflag |= LS_NUMERIC_VIEW|LS_LONG_VIEW;
1.44 djm 368: break;
1.52 djm 369: case 'S':
370: *lflag &= ~SORT_FLAGS;
1.53 djm 371: *lflag |= LS_SIZE_SORT;
1.52 djm 372: break;
373: case 't':
374: *lflag &= ~SORT_FLAGS;
1.53 djm 375: *lflag |= LS_TIME_SORT;
1.52 djm 376: break;
377: case 'r':
1.53 djm 378: *lflag |= LS_REVERSE_SORT;
1.52 djm 379: break;
380: case 'f':
381: *lflag &= ~SORT_FLAGS;
382: break;
1.54 djm 383: case 'a':
384: *lflag |= LS_SHOW_ALL;
385: break;
1.44 djm 386: default:
387: error("Invalid flag -%c", *cp);
388: return(-1);
389: }
390: }
391: *cpp = cp + strspn(cp, WHITESPACE);
392: }
393:
394: return(0);
395: }
396:
397: static int
398: get_pathname(const char **cpp, char **path)
399: {
400: const char *cp = *cpp, *end;
401: char quot;
1.64 djm 402: u_int i, j;
1.44 djm 403:
404: cp += strspn(cp, WHITESPACE);
405: if (!*cp) {
406: *cpp = cp;
407: *path = NULL;
408: return (0);
409: }
410:
411: *path = xmalloc(strlen(cp) + 1);
412:
413: /* Check for quoted filenames */
414: if (*cp == '\"' || *cp == '\'') {
415: quot = *cp++;
416:
417: /* Search for terminating quote, unescape some chars */
418: for (i = j = 0; i <= strlen(cp); i++) {
419: if (cp[i] == quot) { /* Found quote */
420: i++;
421: (*path)[j] = '\0';
422: break;
423: }
424: if (cp[i] == '\0') { /* End of string */
425: error("Unterminated quote");
426: goto fail;
427: }
428: if (cp[i] == '\\') { /* Escaped characters */
429: i++;
430: if (cp[i] != '\'' && cp[i] != '\"' &&
431: cp[i] != '\\') {
1.55 djm 432: error("Bad escaped character '\\%c'",
1.44 djm 433: cp[i]);
434: goto fail;
435: }
436: }
437: (*path)[j++] = cp[i];
438: }
439:
440: if (j == 0) {
441: error("Empty quotes");
442: goto fail;
443: }
444: *cpp = cp + i + strspn(cp + i, WHITESPACE);
445: } else {
446: /* Read to end of filename */
447: end = strpbrk(cp, WHITESPACE);
448: if (end == NULL)
449: end = strchr(cp, '\0');
450: *cpp = end + strspn(end, WHITESPACE);
451:
452: memcpy(*path, cp, end - cp);
453: (*path)[end - cp] = '\0';
454: }
455: return (0);
456:
457: fail:
458: xfree(*path);
459: *path = NULL;
460: return (-1);
461: }
462:
463: static int
464: is_dir(char *path)
465: {
466: struct stat sb;
467:
468: /* XXX: report errors? */
469: if (stat(path, &sb) == -1)
470: return(0);
471:
472: return(sb.st_mode & S_IFDIR);
473: }
474:
475: static int
476: is_reg(char *path)
477: {
478: struct stat sb;
479:
480: if (stat(path, &sb) == -1)
481: fatal("stat %s: %s", path, strerror(errno));
482:
483: return(S_ISREG(sb.st_mode));
484: }
485:
486: static int
487: remote_is_dir(struct sftp_conn *conn, char *path)
488: {
489: Attrib *a;
490:
491: /* XXX: report errors? */
492: if ((a = do_stat(conn, path, 1)) == NULL)
493: return(0);
494: if (!(a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS))
495: return(0);
496: return(a->perm & S_IFDIR);
497: }
498:
499: static int
500: process_get(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag)
501: {
502: char *abs_src = NULL;
503: char *abs_dst = NULL;
504: char *tmp;
505: glob_t g;
506: int err = 0;
507: int i;
508:
509: abs_src = xstrdup(src);
510: abs_src = make_absolute(abs_src, pwd);
511:
512: memset(&g, 0, sizeof(g));
513: debug3("Looking up %s", abs_src);
514: if (remote_glob(conn, abs_src, 0, NULL, &g)) {
515: error("File \"%s\" not found.", abs_src);
516: err = -1;
517: goto out;
518: }
519:
520: /* If multiple matches, dst must be a directory or unspecified */
521: if (g.gl_matchc > 1 && dst && !is_dir(dst)) {
522: error("Multiple files match, but \"%s\" is not a directory",
523: dst);
524: err = -1;
525: goto out;
526: }
527:
1.46 djm 528: for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1.44 djm 529: if (infer_path(g.gl_pathv[i], &tmp)) {
530: err = -1;
531: goto out;
532: }
533:
534: if (g.gl_matchc == 1 && dst) {
535: /* If directory specified, append filename */
536: if (is_dir(dst)) {
537: if (infer_path(g.gl_pathv[0], &tmp)) {
538: err = 1;
539: goto out;
540: }
541: abs_dst = path_append(dst, tmp);
542: xfree(tmp);
543: } else
544: abs_dst = xstrdup(dst);
545: } else if (dst) {
546: abs_dst = path_append(dst, tmp);
547: xfree(tmp);
548: } else
549: abs_dst = tmp;
550:
551: printf("Fetching %s to %s\n", g.gl_pathv[i], abs_dst);
552: if (do_download(conn, g.gl_pathv[i], abs_dst, pflag) == -1)
553: err = -1;
554: xfree(abs_dst);
555: abs_dst = NULL;
556: }
557:
558: out:
559: xfree(abs_src);
560: if (abs_dst)
561: xfree(abs_dst);
562: globfree(&g);
563: return(err);
564: }
565:
566: static int
567: process_put(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag)
568: {
569: char *tmp_dst = NULL;
570: char *abs_dst = NULL;
571: char *tmp;
572: glob_t g;
573: int err = 0;
574: int i;
575:
576: if (dst) {
577: tmp_dst = xstrdup(dst);
578: tmp_dst = make_absolute(tmp_dst, pwd);
579: }
580:
581: memset(&g, 0, sizeof(g));
582: debug3("Looking up %s", src);
583: if (glob(src, 0, NULL, &g)) {
584: error("File \"%s\" not found.", src);
585: err = -1;
586: goto out;
587: }
588:
589: /* If multiple matches, dst may be directory or unspecified */
590: if (g.gl_matchc > 1 && tmp_dst && !remote_is_dir(conn, tmp_dst)) {
591: error("Multiple files match, but \"%s\" is not a directory",
592: tmp_dst);
593: err = -1;
594: goto out;
595: }
596:
1.46 djm 597: for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1.44 djm 598: if (!is_reg(g.gl_pathv[i])) {
599: error("skipping non-regular file %s",
600: g.gl_pathv[i]);
601: continue;
602: }
603: if (infer_path(g.gl_pathv[i], &tmp)) {
604: err = -1;
605: goto out;
606: }
607:
608: if (g.gl_matchc == 1 && tmp_dst) {
609: /* If directory specified, append filename */
610: if (remote_is_dir(conn, tmp_dst)) {
611: if (infer_path(g.gl_pathv[0], &tmp)) {
612: err = 1;
613: goto out;
614: }
615: abs_dst = path_append(tmp_dst, tmp);
616: xfree(tmp);
617: } else
618: abs_dst = xstrdup(tmp_dst);
619:
620: } else if (tmp_dst) {
621: abs_dst = path_append(tmp_dst, tmp);
622: xfree(tmp);
623: } else
624: abs_dst = make_absolute(tmp, pwd);
625:
626: printf("Uploading %s to %s\n", g.gl_pathv[i], abs_dst);
627: if (do_upload(conn, g.gl_pathv[i], abs_dst, pflag) == -1)
628: err = -1;
629: }
630:
631: out:
632: if (abs_dst)
633: xfree(abs_dst);
634: if (tmp_dst)
635: xfree(tmp_dst);
636: globfree(&g);
637: return(err);
638: }
639:
640: static int
641: sdirent_comp(const void *aa, const void *bb)
642: {
643: SFTP_DIRENT *a = *(SFTP_DIRENT **)aa;
644: SFTP_DIRENT *b = *(SFTP_DIRENT **)bb;
1.53 djm 645: int rmul = sort_flag & LS_REVERSE_SORT ? -1 : 1;
1.44 djm 646:
1.52 djm 647: #define NCMP(a,b) (a == b ? 0 : (a < b ? 1 : -1))
1.53 djm 648: if (sort_flag & LS_NAME_SORT)
1.52 djm 649: return (rmul * strcmp(a->filename, b->filename));
1.53 djm 650: else if (sort_flag & LS_TIME_SORT)
1.52 djm 651: return (rmul * NCMP(a->a.mtime, b->a.mtime));
1.53 djm 652: else if (sort_flag & LS_SIZE_SORT)
1.52 djm 653: return (rmul * NCMP(a->a.size, b->a.size));
654:
655: fatal("Unknown ls sort type");
1.44 djm 656: }
657:
658: /* sftp ls.1 replacement for directories */
659: static int
660: do_ls_dir(struct sftp_conn *conn, char *path, char *strip_path, int lflag)
661: {
1.64 djm 662: int n;
663: u_int c = 1, colspace = 0, columns = 1;
1.44 djm 664: SFTP_DIRENT **d;
665:
666: if ((n = do_readdir(conn, path, &d)) != 0)
667: return (n);
668:
1.53 djm 669: if (!(lflag & LS_SHORT_VIEW)) {
1.64 djm 670: u_int m = 0, width = 80;
1.44 djm 671: struct winsize ws;
672: char *tmp;
673:
674: /* Count entries for sort and find longest filename */
1.54 djm 675: for (n = 0; d[n] != NULL; n++) {
676: if (d[n]->filename[0] != '.' || (lflag & LS_SHOW_ALL))
677: m = MAX(m, strlen(d[n]->filename));
678: }
1.44 djm 679:
680: /* Add any subpath that also needs to be counted */
681: tmp = path_strip(path, strip_path);
682: m += strlen(tmp);
683: xfree(tmp);
684:
685: if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1)
686: width = ws.ws_col;
687:
688: columns = width / (m + 2);
689: columns = MAX(columns, 1);
690: colspace = width / columns;
691: colspace = MIN(colspace, width);
692: }
693:
1.52 djm 694: if (lflag & SORT_FLAGS) {
1.68 dtucker 695: for (n = 0; d[n] != NULL; n++)
696: ; /* count entries */
1.53 djm 697: sort_flag = lflag & (SORT_FLAGS|LS_REVERSE_SORT);
1.52 djm 698: qsort(d, n, sizeof(*d), sdirent_comp);
699: }
1.44 djm 700:
1.46 djm 701: for (n = 0; d[n] != NULL && !interrupted; n++) {
1.44 djm 702: char *tmp, *fname;
1.54 djm 703:
704: if (d[n]->filename[0] == '.' && !(lflag & LS_SHOW_ALL))
705: continue;
1.44 djm 706:
707: tmp = path_append(path, d[n]->filename);
708: fname = path_strip(tmp, strip_path);
709: xfree(tmp);
710:
1.53 djm 711: if (lflag & LS_LONG_VIEW) {
712: if (lflag & LS_NUMERIC_VIEW) {
1.50 djm 713: char *lname;
714: struct stat sb;
715:
716: memset(&sb, 0, sizeof(sb));
717: attrib_to_stat(&d[n]->a, &sb);
718: lname = ls_file(fname, &sb, 1);
719: printf("%s\n", lname);
720: xfree(lname);
721: } else
722: printf("%s\n", d[n]->longname);
1.44 djm 723: } else {
724: printf("%-*s", colspace, fname);
725: if (c >= columns) {
726: printf("\n");
727: c = 1;
728: } else
729: c++;
730: }
731:
732: xfree(fname);
733: }
734:
1.53 djm 735: if (!(lflag & LS_LONG_VIEW) && (c != 1))
1.44 djm 736: printf("\n");
737:
738: free_sftp_dirents(d);
739: return (0);
740: }
741:
742: /* sftp ls.1 replacement which handles path globs */
743: static int
744: do_globbed_ls(struct sftp_conn *conn, char *path, char *strip_path,
745: int lflag)
746: {
747: glob_t g;
1.64 djm 748: u_int i, c = 1, colspace = 0, columns = 1;
1.60 fgsch 749: Attrib *a = NULL;
1.44 djm 750:
751: memset(&g, 0, sizeof(g));
752:
753: if (remote_glob(conn, path, GLOB_MARK|GLOB_NOCHECK|GLOB_BRACE,
1.60 fgsch 754: NULL, &g) || (g.gl_pathc && !g.gl_matchc)) {
755: if (g.gl_pathc)
756: globfree(&g);
1.44 djm 757: error("Can't ls: \"%s\" not found", path);
758: return (-1);
759: }
760:
1.46 djm 761: if (interrupted)
762: goto out;
763:
1.44 djm 764: /*
1.60 fgsch 765: * If the glob returns a single match and it is a directory,
766: * then just list its contents.
1.44 djm 767: */
1.60 fgsch 768: if (g.gl_matchc == 1) {
769: if ((a = do_lstat(conn, g.gl_pathv[0], 1)) == NULL) {
1.44 djm 770: globfree(&g);
771: return (-1);
772: }
773: if ((a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) &&
774: S_ISDIR(a->perm)) {
1.60 fgsch 775: int err;
776:
777: err = do_ls_dir(conn, g.gl_pathv[0], strip_path, lflag);
1.44 djm 778: globfree(&g);
1.60 fgsch 779: return (err);
1.44 djm 780: }
781: }
782:
1.53 djm 783: if (!(lflag & LS_SHORT_VIEW)) {
1.64 djm 784: u_int m = 0, width = 80;
1.44 djm 785: struct winsize ws;
786:
787: /* Count entries for sort and find longest filename */
788: for (i = 0; g.gl_pathv[i]; i++)
789: m = MAX(m, strlen(g.gl_pathv[i]));
790:
791: if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1)
792: width = ws.ws_col;
793:
794: columns = width / (m + 2);
795: columns = MAX(columns, 1);
796: colspace = width / columns;
797: }
798:
1.60 fgsch 799: for (i = 0; g.gl_pathv[i] && !interrupted; i++, a = NULL) {
1.44 djm 800: char *fname;
801:
802: fname = path_strip(g.gl_pathv[i], strip_path);
803:
1.53 djm 804: if (lflag & LS_LONG_VIEW) {
1.44 djm 805: char *lname;
806: struct stat sb;
807:
808: /*
809: * XXX: this is slow - 1 roundtrip per path
810: * A solution to this is to fork glob() and
811: * build a sftp specific version which keeps the
812: * attribs (which currently get thrown away)
813: * that the server returns as well as the filenames.
814: */
815: memset(&sb, 0, sizeof(sb));
1.60 fgsch 816: if (a == NULL)
817: a = do_lstat(conn, g.gl_pathv[i], 1);
1.44 djm 818: if (a != NULL)
819: attrib_to_stat(a, &sb);
820: lname = ls_file(fname, &sb, 1);
821: printf("%s\n", lname);
822: xfree(lname);
823: } else {
824: printf("%-*s", colspace, fname);
825: if (c >= columns) {
826: printf("\n");
827: c = 1;
828: } else
829: c++;
830: }
831: xfree(fname);
832: }
833:
1.53 djm 834: if (!(lflag & LS_LONG_VIEW) && (c != 1))
1.44 djm 835: printf("\n");
836:
1.46 djm 837: out:
1.44 djm 838: if (g.gl_pathc)
839: globfree(&g);
840:
841: return (0);
842: }
843:
844: static int
845: parse_args(const char **cpp, int *pflag, int *lflag, int *iflag,
846: unsigned long *n_arg, char **path1, char **path2)
847: {
848: const char *cmd, *cp = *cpp;
849: char *cp2;
850: int base = 0;
851: long l;
852: int i, cmdnum;
853:
854: /* Skip leading whitespace */
855: cp = cp + strspn(cp, WHITESPACE);
856:
857: /* Ignore blank lines and lines which begin with comment '#' char */
858: if (*cp == '\0' || *cp == '#')
859: return (0);
860:
861: /* Check for leading '-' (disable error processing) */
862: *iflag = 0;
863: if (*cp == '-') {
864: *iflag = 1;
865: cp++;
866: }
867:
868: /* Figure out which command we have */
869: for (i = 0; cmds[i].c; i++) {
870: int cmdlen = strlen(cmds[i].c);
871:
872: /* Check for command followed by whitespace */
873: if (!strncasecmp(cp, cmds[i].c, cmdlen) &&
874: strchr(WHITESPACE, cp[cmdlen])) {
875: cp += cmdlen;
876: cp = cp + strspn(cp, WHITESPACE);
877: break;
878: }
879: }
880: cmdnum = cmds[i].n;
881: cmd = cmds[i].c;
882:
883: /* Special case */
884: if (*cp == '!') {
885: cp++;
886: cmdnum = I_SHELL;
887: } else if (cmdnum == -1) {
888: error("Invalid command.");
889: return (-1);
890: }
891:
892: /* Get arguments and parse flags */
893: *lflag = *pflag = *n_arg = 0;
894: *path1 = *path2 = NULL;
895: switch (cmdnum) {
896: case I_GET:
897: case I_PUT:
898: if (parse_getput_flags(&cp, pflag))
899: return(-1);
900: /* Get first pathname (mandatory) */
901: if (get_pathname(&cp, path1))
902: return(-1);
903: if (*path1 == NULL) {
904: error("You must specify at least one path after a "
905: "%s command.", cmd);
906: return(-1);
907: }
908: /* Try to get second pathname (optional) */
909: if (get_pathname(&cp, path2))
910: return(-1);
911: break;
912: case I_RENAME:
913: case I_SYMLINK:
914: if (get_pathname(&cp, path1))
915: return(-1);
916: if (get_pathname(&cp, path2))
917: return(-1);
918: if (!*path1 || !*path2) {
919: error("You must specify two paths after a %s "
920: "command.", cmd);
921: return(-1);
922: }
923: break;
924: case I_RM:
925: case I_MKDIR:
926: case I_RMDIR:
927: case I_CHDIR:
928: case I_LCHDIR:
929: case I_LMKDIR:
930: /* Get pathname (mandatory) */
931: if (get_pathname(&cp, path1))
932: return(-1);
933: if (*path1 == NULL) {
934: error("You must specify a path after a %s command.",
935: cmd);
936: return(-1);
937: }
938: break;
939: case I_LS:
940: if (parse_ls_flags(&cp, lflag))
941: return(-1);
942: /* Path is optional */
943: if (get_pathname(&cp, path1))
944: return(-1);
945: break;
946: case I_LLS:
947: case I_SHELL:
948: /* Uses the rest of the line */
949: break;
950: case I_LUMASK:
951: base = 8;
952: case I_CHMOD:
953: base = 8;
954: case I_CHOWN:
955: case I_CHGRP:
956: /* Get numeric arg (mandatory) */
957: l = strtol(cp, &cp2, base);
958: if (cp2 == cp || ((l == LONG_MIN || l == LONG_MAX) &&
959: errno == ERANGE) || l < 0) {
960: error("You must supply a numeric argument "
961: "to the %s command.", cmd);
962: return(-1);
963: }
964: cp = cp2;
965: *n_arg = l;
966: if (cmdnum == I_LUMASK && strchr(WHITESPACE, *cp))
967: break;
968: if (cmdnum == I_LUMASK || !strchr(WHITESPACE, *cp)) {
969: error("You must supply a numeric argument "
970: "to the %s command.", cmd);
971: return(-1);
972: }
973: cp += strspn(cp, WHITESPACE);
974:
975: /* Get pathname (mandatory) */
976: if (get_pathname(&cp, path1))
977: return(-1);
978: if (*path1 == NULL) {
979: error("You must specify a path after a %s command.",
980: cmd);
981: return(-1);
982: }
983: break;
984: case I_QUIT:
985: case I_PWD:
986: case I_LPWD:
987: case I_HELP:
988: case I_VERSION:
989: case I_PROGRESS:
990: break;
991: default:
992: fatal("Command not implemented");
993: }
994:
995: *cpp = cp;
996: return(cmdnum);
997: }
998:
999: static int
1000: parse_dispatch_command(struct sftp_conn *conn, const char *cmd, char **pwd,
1001: int err_abort)
1002: {
1003: char *path1, *path2, *tmp;
1004: int pflag, lflag, iflag, cmdnum, i;
1005: unsigned long n_arg;
1006: Attrib a, *aa;
1007: char path_buf[MAXPATHLEN];
1008: int err = 0;
1009: glob_t g;
1010:
1011: path1 = path2 = NULL;
1012: cmdnum = parse_args(&cmd, &pflag, &lflag, &iflag, &n_arg,
1013: &path1, &path2);
1014:
1015: if (iflag != 0)
1016: err_abort = 0;
1017:
1018: memset(&g, 0, sizeof(g));
1019:
1020: /* Perform command */
1021: switch (cmdnum) {
1022: case 0:
1023: /* Blank line */
1024: break;
1025: case -1:
1026: /* Unrecognized command */
1027: err = -1;
1028: break;
1029: case I_GET:
1030: err = process_get(conn, path1, path2, *pwd, pflag);
1031: break;
1032: case I_PUT:
1033: err = process_put(conn, path1, path2, *pwd, pflag);
1034: break;
1035: case I_RENAME:
1036: path1 = make_absolute(path1, *pwd);
1037: path2 = make_absolute(path2, *pwd);
1038: err = do_rename(conn, path1, path2);
1039: break;
1040: case I_SYMLINK:
1041: path2 = make_absolute(path2, *pwd);
1042: err = do_symlink(conn, path1, path2);
1043: break;
1044: case I_RM:
1045: path1 = make_absolute(path1, *pwd);
1046: remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
1.46 djm 1047: for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1.44 djm 1048: printf("Removing %s\n", g.gl_pathv[i]);
1049: err = do_rm(conn, g.gl_pathv[i]);
1050: if (err != 0 && err_abort)
1051: break;
1052: }
1053: break;
1054: case I_MKDIR:
1055: path1 = make_absolute(path1, *pwd);
1056: attrib_clear(&a);
1057: a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
1058: a.perm = 0777;
1059: err = do_mkdir(conn, path1, &a);
1060: break;
1061: case I_RMDIR:
1062: path1 = make_absolute(path1, *pwd);
1063: err = do_rmdir(conn, path1);
1064: break;
1065: case I_CHDIR:
1066: path1 = make_absolute(path1, *pwd);
1067: if ((tmp = do_realpath(conn, path1)) == NULL) {
1068: err = 1;
1069: break;
1070: }
1071: if ((aa = do_stat(conn, tmp, 0)) == NULL) {
1072: xfree(tmp);
1073: err = 1;
1074: break;
1075: }
1076: if (!(aa->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)) {
1077: error("Can't change directory: Can't check target");
1078: xfree(tmp);
1079: err = 1;
1080: break;
1081: }
1082: if (!S_ISDIR(aa->perm)) {
1083: error("Can't change directory: \"%s\" is not "
1084: "a directory", tmp);
1085: xfree(tmp);
1086: err = 1;
1087: break;
1088: }
1089: xfree(*pwd);
1090: *pwd = tmp;
1091: break;
1092: case I_LS:
1093: if (!path1) {
1094: do_globbed_ls(conn, *pwd, *pwd, lflag);
1095: break;
1096: }
1097:
1098: /* Strip pwd off beginning of non-absolute paths */
1099: tmp = NULL;
1100: if (*path1 != '/')
1101: tmp = *pwd;
1102:
1103: path1 = make_absolute(path1, *pwd);
1104: err = do_globbed_ls(conn, path1, tmp, lflag);
1105: break;
1106: case I_LCHDIR:
1107: if (chdir(path1) == -1) {
1108: error("Couldn't change local directory to "
1109: "\"%s\": %s", path1, strerror(errno));
1110: err = 1;
1111: }
1112: break;
1113: case I_LMKDIR:
1114: if (mkdir(path1, 0777) == -1) {
1115: error("Couldn't create local directory "
1116: "\"%s\": %s", path1, strerror(errno));
1117: err = 1;
1118: }
1119: break;
1120: case I_LLS:
1121: local_do_ls(cmd);
1122: break;
1123: case I_SHELL:
1124: local_do_shell(cmd);
1125: break;
1126: case I_LUMASK:
1127: umask(n_arg);
1128: printf("Local umask: %03lo\n", n_arg);
1129: break;
1130: case I_CHMOD:
1131: path1 = make_absolute(path1, *pwd);
1132: attrib_clear(&a);
1133: a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
1134: a.perm = n_arg;
1135: remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
1.46 djm 1136: for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1.44 djm 1137: printf("Changing mode on %s\n", g.gl_pathv[i]);
1138: err = do_setstat(conn, g.gl_pathv[i], &a);
1139: if (err != 0 && err_abort)
1140: break;
1141: }
1142: break;
1143: case I_CHOWN:
1144: case I_CHGRP:
1145: path1 = make_absolute(path1, *pwd);
1146: remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
1.46 djm 1147: for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1.44 djm 1148: if (!(aa = do_stat(conn, g.gl_pathv[i], 0))) {
1149: if (err != 0 && err_abort)
1150: break;
1151: else
1152: continue;
1153: }
1154: if (!(aa->flags & SSH2_FILEXFER_ATTR_UIDGID)) {
1155: error("Can't get current ownership of "
1156: "remote file \"%s\"", g.gl_pathv[i]);
1157: if (err != 0 && err_abort)
1158: break;
1159: else
1160: continue;
1161: }
1162: aa->flags &= SSH2_FILEXFER_ATTR_UIDGID;
1163: if (cmdnum == I_CHOWN) {
1164: printf("Changing owner on %s\n", g.gl_pathv[i]);
1165: aa->uid = n_arg;
1166: } else {
1167: printf("Changing group on %s\n", g.gl_pathv[i]);
1168: aa->gid = n_arg;
1169: }
1170: err = do_setstat(conn, g.gl_pathv[i], aa);
1171: if (err != 0 && err_abort)
1172: break;
1173: }
1174: break;
1175: case I_PWD:
1176: printf("Remote working directory: %s\n", *pwd);
1177: break;
1178: case I_LPWD:
1179: if (!getcwd(path_buf, sizeof(path_buf))) {
1180: error("Couldn't get local cwd: %s", strerror(errno));
1181: err = -1;
1182: break;
1183: }
1184: printf("Local working directory: %s\n", path_buf);
1185: break;
1186: case I_QUIT:
1187: /* Processed below */
1188: break;
1189: case I_HELP:
1190: help();
1191: break;
1192: case I_VERSION:
1193: printf("SFTP protocol version %u\n", sftp_proto_version(conn));
1194: break;
1195: case I_PROGRESS:
1196: showprogress = !showprogress;
1197: if (showprogress)
1198: printf("Progress meter enabled\n");
1199: else
1200: printf("Progress meter disabled\n");
1201: break;
1202: default:
1203: fatal("%d is not implemented", cmdnum);
1204: }
1205:
1206: if (g.gl_pathc)
1207: globfree(&g);
1208: if (path1)
1209: xfree(path1);
1210: if (path2)
1211: xfree(path2);
1212:
1213: /* If an unignored error occurs in batch mode we should abort. */
1214: if (err_abort && err != 0)
1215: return (-1);
1216: else if (cmdnum == I_QUIT)
1217: return (1);
1218:
1219: return (0);
1220: }
1221:
1.57 djm 1222: static char *
1223: prompt(EditLine *el)
1224: {
1225: return ("sftp> ");
1226: }
1227:
1.44 djm 1228: int
1229: interactive_loop(int fd_in, int fd_out, char *file1, char *file2)
1230: {
1231: char *pwd;
1232: char *dir = NULL;
1233: char cmd[2048];
1234: struct sftp_conn *conn;
1.66 jaredy 1235: int err, interactive;
1.57 djm 1236: EditLine *el = NULL;
1237: History *hl = NULL;
1238: HistEvent hev;
1239: extern char *__progname;
1240:
1241: if (!batchmode && isatty(STDIN_FILENO)) {
1242: if ((el = el_init(__progname, stdin, stdout, stderr)) == NULL)
1243: fatal("Couldn't initialise editline");
1244: if ((hl = history_init()) == NULL)
1245: fatal("Couldn't initialise editline history");
1246: history(hl, &hev, H_SETSIZE, 100);
1247: el_set(el, EL_HIST, history, hl);
1248:
1249: el_set(el, EL_PROMPT, prompt);
1250: el_set(el, EL_EDITOR, "emacs");
1251: el_set(el, EL_TERMINAL, NULL);
1252: el_set(el, EL_SIGNAL, 1);
1253: el_source(el, NULL);
1254: }
1.44 djm 1255:
1256: conn = do_init(fd_in, fd_out, copy_buffer_len, num_requests);
1257: if (conn == NULL)
1258: fatal("Couldn't initialise connection to server");
1259:
1260: pwd = do_realpath(conn, ".");
1261: if (pwd == NULL)
1262: fatal("Need cwd");
1263:
1264: if (file1 != NULL) {
1265: dir = xstrdup(file1);
1266: dir = make_absolute(dir, pwd);
1267:
1268: if (remote_is_dir(conn, dir) && file2 == NULL) {
1269: printf("Changing to: %s\n", dir);
1270: snprintf(cmd, sizeof cmd, "cd \"%s\"", dir);
1.58 markus 1271: if (parse_dispatch_command(conn, cmd, &pwd, 1) != 0) {
1272: xfree(dir);
1273: xfree(pwd);
1.44 djm 1274: return (-1);
1.58 markus 1275: }
1.44 djm 1276: } else {
1277: if (file2 == NULL)
1278: snprintf(cmd, sizeof cmd, "get %s", dir);
1279: else
1280: snprintf(cmd, sizeof cmd, "get %s %s", dir,
1281: file2);
1282:
1283: err = parse_dispatch_command(conn, cmd, &pwd, 1);
1284: xfree(dir);
1285: xfree(pwd);
1286: return (err);
1287: }
1288: xfree(dir);
1289: }
1290:
1291: setvbuf(stdout, NULL, _IOLBF, 0);
1292: setvbuf(infile, NULL, _IOLBF, 0);
1293:
1.66 jaredy 1294: interactive = !batchmode && isatty(STDIN_FILENO);
1.44 djm 1295: err = 0;
1296: for (;;) {
1297: char *cp;
1.57 djm 1298: const char *line;
1299: int count = 0;
1.44 djm 1300:
1.46 djm 1301: signal(SIGINT, SIG_IGN);
1302:
1.57 djm 1303: if (el == NULL) {
1.66 jaredy 1304: if (interactive)
1305: printf("sftp> ");
1.57 djm 1306: if (fgets(cmd, sizeof(cmd), infile) == NULL) {
1.66 jaredy 1307: if (interactive)
1308: printf("\n");
1.57 djm 1309: break;
1310: }
1.66 jaredy 1311: if (!interactive) { /* Echo command */
1312: printf("sftp> %s", cmd);
1313: if (strlen(cmd) > 0 &&
1314: cmd[strlen(cmd) - 1] != '\n')
1315: printf("\n");
1316: }
1.57 djm 1317: } else {
1.66 jaredy 1318: if ((line = el_gets(el, &count)) == NULL || count <= 0) {
1319: printf("\n");
1.57 djm 1320: break;
1.66 jaredy 1321: }
1.57 djm 1322: history(hl, &hev, H_ENTER, line);
1323: if (strlcpy(cmd, line, sizeof(cmd)) >= sizeof(cmd)) {
1324: fprintf(stderr, "Error: input line too long\n");
1325: continue;
1326: }
1.44 djm 1327: }
1328:
1329: cp = strrchr(cmd, '\n');
1330: if (cp)
1331: *cp = '\0';
1332:
1.46 djm 1333: /* Handle user interrupts gracefully during commands */
1334: interrupted = 0;
1335: signal(SIGINT, cmd_interrupt);
1336:
1.44 djm 1337: err = parse_dispatch_command(conn, cmd, &pwd, batchmode);
1338: if (err != 0)
1339: break;
1340: }
1341: xfree(pwd);
1.66 jaredy 1342:
1343: if (el != NULL)
1344: el_end(el);
1.44 djm 1345:
1346: /* err == 1 signifies normal "quit" exit */
1347: return (err >= 0 ? 0 : -1);
1348: }
1.34 fgsch 1349:
1.18 itojun 1350: static void
1.36 djm 1351: connect_to_server(char *path, char **args, int *in, int *out)
1.1 djm 1352: {
1353: int c_in, c_out;
1.30 deraadt 1354:
1.1 djm 1355: #ifdef USE_PIPES
1356: int pin[2], pout[2];
1.30 deraadt 1357:
1.1 djm 1358: if ((pipe(pin) == -1) || (pipe(pout) == -1))
1359: fatal("pipe: %s", strerror(errno));
1360: *in = pin[0];
1361: *out = pout[1];
1362: c_in = pout[0];
1363: c_out = pin[1];
1364: #else /* USE_PIPES */
1365: int inout[2];
1.30 deraadt 1366:
1.1 djm 1367: if (socketpair(AF_UNIX, SOCK_STREAM, 0, inout) == -1)
1368: fatal("socketpair: %s", strerror(errno));
1369: *in = *out = inout[0];
1370: c_in = c_out = inout[1];
1371: #endif /* USE_PIPES */
1372:
1.36 djm 1373: if ((sshpid = fork()) == -1)
1.1 djm 1374: fatal("fork: %s", strerror(errno));
1.36 djm 1375: else if (sshpid == 0) {
1.1 djm 1376: if ((dup2(c_in, STDIN_FILENO) == -1) ||
1377: (dup2(c_out, STDOUT_FILENO) == -1)) {
1378: fprintf(stderr, "dup2: %s\n", strerror(errno));
1.47 djm 1379: _exit(1);
1.1 djm 1380: }
1381: close(*in);
1382: close(*out);
1383: close(c_in);
1384: close(c_out);
1.46 djm 1385:
1386: /*
1387: * The underlying ssh is in the same process group, so we must
1.56 deraadt 1388: * ignore SIGINT if we want to gracefully abort commands,
1389: * otherwise the signal will make it to the ssh process and
1.46 djm 1390: * kill it too
1391: */
1392: signal(SIGINT, SIG_IGN);
1.49 dtucker 1393: execvp(path, args);
1.23 djm 1394: fprintf(stderr, "exec: %s: %s\n", path, strerror(errno));
1.47 djm 1395: _exit(1);
1.1 djm 1396: }
1397:
1.36 djm 1398: signal(SIGTERM, killchild);
1399: signal(SIGINT, killchild);
1400: signal(SIGHUP, killchild);
1.1 djm 1401: close(c_in);
1402: close(c_out);
1403: }
1404:
1.18 itojun 1405: static void
1.1 djm 1406: usage(void)
1407: {
1.25 mpech 1408: extern char *__progname;
1.27 markus 1409:
1.19 stevesk 1410: fprintf(stderr,
1.38 jmc 1411: "usage: %s [-1Cv] [-B buffer_size] [-b batchfile] [-F ssh_config]\n"
1412: " [-o ssh_option] [-P sftp_server_path] [-R num_requests]\n"
1413: " [-S program] [-s subsystem | sftp_server] host\n"
1414: " %s [[user@]host[:file [file]]]\n"
1415: " %s [[user@]host[:dir[/]]]\n"
1416: " %s -b batchfile [user@]host\n", __progname, __progname, __progname, __progname);
1.1 djm 1417: exit(1);
1418: }
1419:
1.2 stevesk 1420: int
1.1 djm 1421: main(int argc, char **argv)
1422: {
1.33 djm 1423: int in, out, ch, err;
1.48 pedro 1424: char *host, *userhost, *cp, *file2 = NULL;
1.17 mouring 1425: int debug_level = 0, sshver = 2;
1426: char *file1 = NULL, *sftp_server = NULL;
1.23 djm 1427: char *ssh_program = _PATH_SSH_PROGRAM, *sftp_direct = NULL;
1.17 mouring 1428: LogLevel ll = SYSLOG_LEVEL_INFO;
1429: arglist args;
1.3 djm 1430: extern int optind;
1431: extern char *optarg;
1.67 djm 1432:
1433: /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */
1434: sanitise_stdfd();
1.1 djm 1435:
1.17 mouring 1436: args.list = NULL;
1.22 deraadt 1437: addargs(&args, "ssh"); /* overwritten with ssh_program */
1.17 mouring 1438: addargs(&args, "-oForwardX11 no");
1439: addargs(&args, "-oForwardAgent no");
1.69 ! reyk 1440: addargs(&args, "-oPermitLocalCommand no");
1.21 stevesk 1441: addargs(&args, "-oClearAllForwardings yes");
1.40 djm 1442:
1.17 mouring 1443: ll = SYSLOG_LEVEL_INFO;
1.40 djm 1444: infile = stdin;
1.3 djm 1445:
1.26 djm 1446: while ((ch = getopt(argc, argv, "1hvCo:s:S:b:B:F:P:R:")) != -1) {
1.3 djm 1447: switch (ch) {
1448: case 'C':
1.17 mouring 1449: addargs(&args, "-C");
1.3 djm 1450: break;
1451: case 'v':
1.17 mouring 1452: if (debug_level < 3) {
1453: addargs(&args, "-v");
1454: ll = SYSLOG_LEVEL_DEBUG1 + debug_level;
1455: }
1456: debug_level++;
1.3 djm 1457: break;
1.19 stevesk 1458: case 'F':
1.3 djm 1459: case 'o':
1.19 stevesk 1460: addargs(&args, "-%c%s", ch, optarg);
1.7 markus 1461: break;
1462: case '1':
1.17 mouring 1463: sshver = 1;
1.7 markus 1464: if (sftp_server == NULL)
1465: sftp_server = _PATH_SFTP_SERVER;
1466: break;
1467: case 's':
1468: sftp_server = optarg;
1469: break;
1470: case 'S':
1471: ssh_program = optarg;
1.3 djm 1472: break;
1.10 deraadt 1473: case 'b':
1.39 djm 1474: if (batchmode)
1475: fatal("Batch file already specified.");
1476:
1477: /* Allow "-" as stdin */
1.56 deraadt 1478: if (strcmp(optarg, "-") != 0 &&
1.65 djm 1479: (infile = fopen(optarg, "r")) == NULL)
1.39 djm 1480: fatal("%s (%s).", strerror(errno), optarg);
1.34 fgsch 1481: showprogress = 0;
1.39 djm 1482: batchmode = 1;
1.62 djm 1483: addargs(&args, "-obatchmode yes");
1.10 deraadt 1484: break;
1.23 djm 1485: case 'P':
1486: sftp_direct = optarg;
1.24 djm 1487: break;
1488: case 'B':
1489: copy_buffer_len = strtol(optarg, &cp, 10);
1490: if (copy_buffer_len == 0 || *cp != '\0')
1491: fatal("Invalid buffer size \"%s\"", optarg);
1.26 djm 1492: break;
1493: case 'R':
1494: num_requests = strtol(optarg, &cp, 10);
1495: if (num_requests == 0 || *cp != '\0')
1.27 markus 1496: fatal("Invalid number of requests \"%s\"",
1.26 djm 1497: optarg);
1.23 djm 1498: break;
1.3 djm 1499: case 'h':
1500: default:
1.1 djm 1501: usage();
1502: }
1503: }
1.45 djm 1504:
1505: if (!isatty(STDERR_FILENO))
1506: showprogress = 0;
1.1 djm 1507:
1.29 markus 1508: log_init(argv[0], ll, SYSLOG_FACILITY_USER, 1);
1509:
1.23 djm 1510: if (sftp_direct == NULL) {
1511: if (optind == argc || argc > (optind + 2))
1512: usage();
1513:
1514: userhost = xstrdup(argv[optind]);
1515: file2 = argv[optind+1];
1.1 djm 1516:
1.32 markus 1517: if ((host = strrchr(userhost, '@')) == NULL)
1.23 djm 1518: host = userhost;
1519: else {
1520: *host++ = '\0';
1521: if (!userhost[0]) {
1522: fprintf(stderr, "Missing username\n");
1523: usage();
1524: }
1525: addargs(&args, "-l%s",userhost);
1.41 djm 1526: }
1527:
1528: if ((cp = colon(host)) != NULL) {
1529: *cp++ = '\0';
1530: file1 = cp;
1.23 djm 1531: }
1.3 djm 1532:
1.23 djm 1533: host = cleanhostname(host);
1534: if (!*host) {
1535: fprintf(stderr, "Missing hostname\n");
1.1 djm 1536: usage();
1537: }
1538:
1.23 djm 1539: addargs(&args, "-oProtocol %d", sshver);
1540:
1541: /* no subsystem if the server-spec contains a '/' */
1542: if (sftp_server == NULL || strchr(sftp_server, '/') == NULL)
1543: addargs(&args, "-s");
1544:
1545: addargs(&args, "%s", host);
1.27 markus 1546: addargs(&args, "%s", (sftp_server != NULL ?
1.23 djm 1547: sftp_server : "sftp"));
1548: args.list[0] = ssh_program;
1549:
1.39 djm 1550: if (!batchmode)
1551: fprintf(stderr, "Connecting to %s...\n", host);
1.36 djm 1552: connect_to_server(ssh_program, args.list, &in, &out);
1.23 djm 1553: } else {
1554: args.list = NULL;
1555: addargs(&args, "sftp-server");
1556:
1.39 djm 1557: if (!batchmode)
1558: fprintf(stderr, "Attaching to %s...\n", sftp_direct);
1.36 djm 1559: connect_to_server(sftp_direct, args.list, &in, &out);
1.1 djm 1560: }
1561:
1.33 djm 1562: err = interactive_loop(in, out, file1, file2);
1.1 djm 1563:
1564: close(in);
1565: close(out);
1.39 djm 1566: if (batchmode)
1.10 deraadt 1567: fclose(infile);
1.1 djm 1568:
1.28 markus 1569: while (waitpid(sshpid, NULL, 0) == -1)
1570: if (errno != EINTR)
1571: fatal("Couldn't wait for ssh process: %s",
1572: strerror(errno));
1.1 djm 1573:
1.33 djm 1574: exit(err == 0 ? 0 : 1);
1.1 djm 1575: }