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Commit | Line | Data |
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61e96248 | 1 | /* |
ab3932ab | 2 | * Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org> |
61e96248 | 3 | * |
ab3932ab | 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. | |
61e96248 | 7 | * |
ab3932ab | 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. | |
61e96248 | 15 | */ |
16 | ||
17 | #include "includes.h" | |
18 | ||
8dbffee9 | 19 | RCSID("$OpenBSD: sftp.c,v 1.47 2004/05/26 08:59:57 djm Exp $"); |
61e96248 | 20 | |
21 | #include "buffer.h" | |
22 | #include "xmalloc.h" | |
23 | #include "log.h" | |
24 | #include "pathnames.h" | |
1fcde3fe | 25 | #include "misc.h" |
61e96248 | 26 | |
27 | #include "sftp.h" | |
28 | #include "sftp-common.h" | |
29 | #include "sftp-client.h" | |
caf1e9f0 | 30 | |
2cda7d6b | 31 | /* File to read commands from */ |
32 | FILE* infile; | |
33 | ||
34 | /* Are we in batchfile mode? */ | |
35 | int batchmode = 0; | |
36 | ||
37 | /* Size of buffer used when copying files */ | |
38 | size_t copy_buffer_len = 32768; | |
39 | ||
40 | /* Number of concurrent outstanding requests */ | |
41 | size_t num_requests = 16; | |
42 | ||
43 | /* PID of ssh transport process */ | |
44 | static pid_t sshpid = -1; | |
45 | ||
46 | /* This is set to 0 if the progressmeter is not desired. */ | |
06abcf97 | 47 | int showprogress = 1; |
2cda7d6b | 48 | |
0e5de6f8 | 49 | /* SIGINT received during command processing */ |
50 | volatile sig_atomic_t interrupted = 0; | |
51 | ||
2cda7d6b | 52 | int remote_glob(struct sftp_conn *, const char *, int, |
53 | int (*)(const char *, int), glob_t *); /* proto for sftp-glob.c */ | |
61e96248 | 54 | |
5152d46f | 55 | #ifdef HAVE___PROGNAME |
56 | extern char *__progname; | |
57 | #else | |
58 | char *__progname; | |
59 | #endif | |
60 | ||
2cda7d6b | 61 | /* Separators for interactive commands */ |
62 | #define WHITESPACE " \t\r\n" | |
63 | ||
64 | /* Define what type of ls view (0 - multi-column) */ | |
65 | #define LONG_VIEW 1 /* Full view ala ls -l */ | |
66 | #define SHORT_VIEW 2 /* Single row view ala ls -1 */ | |
67 | ||
68 | /* Commands for interactive mode */ | |
69 | #define I_CHDIR 1 | |
70 | #define I_CHGRP 2 | |
71 | #define I_CHMOD 3 | |
72 | #define I_CHOWN 4 | |
73 | #define I_GET 5 | |
74 | #define I_HELP 6 | |
75 | #define I_LCHDIR 7 | |
76 | #define I_LLS 8 | |
77 | #define I_LMKDIR 9 | |
78 | #define I_LPWD 10 | |
79 | #define I_LS 11 | |
80 | #define I_LUMASK 12 | |
81 | #define I_MKDIR 13 | |
82 | #define I_PUT 14 | |
83 | #define I_PWD 15 | |
84 | #define I_QUIT 16 | |
85 | #define I_RENAME 17 | |
86 | #define I_RM 18 | |
87 | #define I_RMDIR 19 | |
88 | #define I_SHELL 20 | |
89 | #define I_SYMLINK 21 | |
90 | #define I_VERSION 22 | |
91 | #define I_PROGRESS 23 | |
92 | ||
93 | struct CMD { | |
94 | const char *c; | |
95 | const int n; | |
96 | }; | |
97 | ||
98 | static const struct CMD cmds[] = { | |
99 | { "bye", I_QUIT }, | |
100 | { "cd", I_CHDIR }, | |
101 | { "chdir", I_CHDIR }, | |
102 | { "chgrp", I_CHGRP }, | |
103 | { "chmod", I_CHMOD }, | |
104 | { "chown", I_CHOWN }, | |
105 | { "dir", I_LS }, | |
106 | { "exit", I_QUIT }, | |
107 | { "get", I_GET }, | |
108 | { "mget", I_GET }, | |
109 | { "help", I_HELP }, | |
110 | { "lcd", I_LCHDIR }, | |
111 | { "lchdir", I_LCHDIR }, | |
112 | { "lls", I_LLS }, | |
113 | { "lmkdir", I_LMKDIR }, | |
114 | { "ln", I_SYMLINK }, | |
115 | { "lpwd", I_LPWD }, | |
116 | { "ls", I_LS }, | |
117 | { "lumask", I_LUMASK }, | |
118 | { "mkdir", I_MKDIR }, | |
119 | { "progress", I_PROGRESS }, | |
120 | { "put", I_PUT }, | |
121 | { "mput", I_PUT }, | |
122 | { "pwd", I_PWD }, | |
123 | { "quit", I_QUIT }, | |
124 | { "rename", I_RENAME }, | |
125 | { "rm", I_RM }, | |
126 | { "rmdir", I_RMDIR }, | |
127 | { "symlink", I_SYMLINK }, | |
128 | { "version", I_VERSION }, | |
129 | { "!", I_SHELL }, | |
130 | { "?", I_HELP }, | |
131 | { NULL, -1} | |
132 | }; | |
133 | ||
134 | int interactive_loop(int fd_in, int fd_out, char *file1, char *file2); | |
135 | ||
0e5de6f8 | 136 | static void |
137 | killchild(int signo) | |
138 | { | |
139 | if (sshpid > 1) | |
140 | kill(sshpid, SIGTERM); | |
141 | ||
142 | _exit(1); | |
143 | } | |
144 | ||
145 | static void | |
146 | cmd_interrupt(int signo) | |
147 | { | |
148 | const char msg[] = "\rInterrupt \n"; | |
149 | ||
150 | write(STDERR_FILENO, msg, sizeof(msg) - 1); | |
151 | interrupted = 1; | |
152 | } | |
153 | ||
2cda7d6b | 154 | static void |
155 | help(void) | |
156 | { | |
157 | printf("Available commands:\n"); | |
158 | printf("cd path Change remote directory to 'path'\n"); | |
159 | printf("lcd path Change local directory to 'path'\n"); | |
160 | printf("chgrp grp path Change group of file 'path' to 'grp'\n"); | |
161 | printf("chmod mode path Change permissions of file 'path' to 'mode'\n"); | |
162 | printf("chown own path Change owner of file 'path' to 'own'\n"); | |
163 | printf("help Display this help text\n"); | |
164 | printf("get remote-path [local-path] Download file\n"); | |
165 | printf("lls [ls-options [path]] Display local directory listing\n"); | |
166 | printf("ln oldpath newpath Symlink remote file\n"); | |
167 | printf("lmkdir path Create local directory\n"); | |
168 | printf("lpwd Print local working directory\n"); | |
169 | printf("ls [path] Display remote directory listing\n"); | |
170 | printf("lumask umask Set local umask to 'umask'\n"); | |
171 | printf("mkdir path Create remote directory\n"); | |
172 | printf("progress Toggle display of progress meter\n"); | |
173 | printf("put local-path [remote-path] Upload file\n"); | |
174 | printf("pwd Display remote working directory\n"); | |
175 | printf("exit Quit sftp\n"); | |
176 | printf("quit Quit sftp\n"); | |
177 | printf("rename oldpath newpath Rename remote file\n"); | |
178 | printf("rmdir path Remove remote directory\n"); | |
179 | printf("rm path Delete remote file\n"); | |
180 | printf("symlink oldpath newpath Symlink remote file\n"); | |
181 | printf("version Show SFTP version\n"); | |
182 | printf("!command Execute 'command' in local shell\n"); | |
183 | printf("! Escape to local shell\n"); | |
184 | printf("? Synonym for help\n"); | |
185 | } | |
186 | ||
187 | static void | |
188 | local_do_shell(const char *args) | |
189 | { | |
190 | int status; | |
191 | char *shell; | |
192 | pid_t pid; | |
193 | ||
194 | if (!*args) | |
195 | args = NULL; | |
196 | ||
197 | if ((shell = getenv("SHELL")) == NULL) | |
198 | shell = _PATH_BSHELL; | |
199 | ||
200 | if ((pid = fork()) == -1) | |
201 | fatal("Couldn't fork: %s", strerror(errno)); | |
202 | ||
203 | if (pid == 0) { | |
204 | /* XXX: child has pipe fds to ssh subproc open - issue? */ | |
205 | if (args) { | |
206 | debug3("Executing %s -c \"%s\"", shell, args); | |
207 | execl(shell, shell, "-c", args, (char *)NULL); | |
208 | } else { | |
209 | debug3("Executing %s", shell); | |
210 | execl(shell, shell, (char *)NULL); | |
211 | } | |
212 | fprintf(stderr, "Couldn't execute \"%s\": %s\n", shell, | |
213 | strerror(errno)); | |
214 | _exit(1); | |
215 | } | |
216 | while (waitpid(pid, &status, 0) == -1) | |
217 | if (errno != EINTR) | |
218 | fatal("Couldn't wait for child: %s", strerror(errno)); | |
219 | if (!WIFEXITED(status)) | |
220 | error("Shell exited abormally"); | |
221 | else if (WEXITSTATUS(status)) | |
222 | error("Shell exited with status %d", WEXITSTATUS(status)); | |
223 | } | |
224 | ||
225 | static void | |
226 | local_do_ls(const char *args) | |
227 | { | |
228 | if (!args || !*args) | |
229 | local_do_shell(_PATH_LS); | |
230 | else { | |
231 | int len = strlen(_PATH_LS " ") + strlen(args) + 1; | |
232 | char *buf = xmalloc(len); | |
233 | ||
234 | /* XXX: quoting - rip quoting code from ftp? */ | |
235 | snprintf(buf, len, _PATH_LS " %s", args); | |
236 | local_do_shell(buf); | |
237 | xfree(buf); | |
238 | } | |
239 | } | |
240 | ||
241 | /* Strip one path (usually the pwd) from the start of another */ | |
242 | static char * | |
243 | path_strip(char *path, char *strip) | |
244 | { | |
245 | size_t len; | |
0426a3b4 | 246 | |
2cda7d6b | 247 | if (strip == NULL) |
248 | return (xstrdup(path)); | |
249 | ||
250 | len = strlen(strip); | |
251 | if (strip != NULL && strncmp(path, strip, len) == 0) { | |
252 | if (strip[len - 1] != '/' && path[len] == '/') | |
253 | len++; | |
254 | return (xstrdup(path + len)); | |
255 | } | |
256 | ||
257 | return (xstrdup(path)); | |
258 | } | |
259 | ||
260 | static char * | |
261 | path_append(char *p1, char *p2) | |
262 | { | |
263 | char *ret; | |
264 | int len = strlen(p1) + strlen(p2) + 2; | |
265 | ||
266 | ret = xmalloc(len); | |
267 | strlcpy(ret, p1, len); | |
268 | if (p1[strlen(p1) - 1] != '/') | |
269 | strlcat(ret, "/", len); | |
270 | strlcat(ret, p2, len); | |
271 | ||
272 | return(ret); | |
273 | } | |
274 | ||
275 | static char * | |
276 | make_absolute(char *p, char *pwd) | |
277 | { | |
278 | char *abs; | |
279 | ||
280 | /* Derelativise */ | |
281 | if (p && p[0] != '/') { | |
282 | abs = path_append(pwd, p); | |
283 | xfree(p); | |
284 | return(abs); | |
285 | } else | |
286 | return(p); | |
287 | } | |
288 | ||
289 | static int | |
290 | infer_path(const char *p, char **ifp) | |
291 | { | |
292 | char *cp; | |
293 | ||
294 | cp = strrchr(p, '/'); | |
295 | if (cp == NULL) { | |
296 | *ifp = xstrdup(p); | |
297 | return(0); | |
298 | } | |
299 | ||
300 | if (!cp[1]) { | |
301 | error("Invalid path"); | |
302 | return(-1); | |
303 | } | |
304 | ||
305 | *ifp = xstrdup(cp + 1); | |
306 | return(0); | |
307 | } | |
308 | ||
309 | static int | |
310 | parse_getput_flags(const char **cpp, int *pflag) | |
311 | { | |
312 | const char *cp = *cpp; | |
313 | ||
314 | /* Check for flags */ | |
315 | if (cp[0] == '-' && cp[1] && strchr(WHITESPACE, cp[2])) { | |
316 | switch (cp[1]) { | |
317 | case 'p': | |
318 | case 'P': | |
319 | *pflag = 1; | |
320 | break; | |
321 | default: | |
322 | error("Invalid flag -%c", cp[1]); | |
323 | return(-1); | |
324 | } | |
325 | cp += 2; | |
326 | *cpp = cp + strspn(cp, WHITESPACE); | |
327 | } | |
328 | ||
329 | return(0); | |
330 | } | |
331 | ||
332 | static int | |
333 | parse_ls_flags(const char **cpp, int *lflag) | |
334 | { | |
335 | const char *cp = *cpp; | |
336 | ||
337 | /* Check for flags */ | |
338 | if (cp++[0] == '-') { | |
339 | for(; strchr(WHITESPACE, *cp) == NULL; cp++) { | |
340 | switch (*cp) { | |
341 | case 'l': | |
342 | *lflag = LONG_VIEW; | |
343 | break; | |
344 | case '1': | |
345 | *lflag = SHORT_VIEW; | |
346 | break; | |
347 | default: | |
348 | error("Invalid flag -%c", *cp); | |
349 | return(-1); | |
350 | } | |
351 | } | |
352 | *cpp = cp + strspn(cp, WHITESPACE); | |
353 | } | |
354 | ||
355 | return(0); | |
356 | } | |
357 | ||
358 | static int | |
359 | get_pathname(const char **cpp, char **path) | |
360 | { | |
361 | const char *cp = *cpp, *end; | |
362 | char quot; | |
363 | int i, j; | |
364 | ||
365 | cp += strspn(cp, WHITESPACE); | |
366 | if (!*cp) { | |
367 | *cpp = cp; | |
368 | *path = NULL; | |
369 | return (0); | |
370 | } | |
371 | ||
372 | *path = xmalloc(strlen(cp) + 1); | |
373 | ||
374 | /* Check for quoted filenames */ | |
375 | if (*cp == '\"' || *cp == '\'') { | |
376 | quot = *cp++; | |
377 | ||
378 | /* Search for terminating quote, unescape some chars */ | |
379 | for (i = j = 0; i <= strlen(cp); i++) { | |
380 | if (cp[i] == quot) { /* Found quote */ | |
381 | i++; | |
382 | (*path)[j] = '\0'; | |
383 | break; | |
384 | } | |
385 | if (cp[i] == '\0') { /* End of string */ | |
386 | error("Unterminated quote"); | |
387 | goto fail; | |
388 | } | |
389 | if (cp[i] == '\\') { /* Escaped characters */ | |
390 | i++; | |
391 | if (cp[i] != '\'' && cp[i] != '\"' && | |
392 | cp[i] != '\\') { | |
393 | error("Bad escaped character '\%c'", | |
394 | cp[i]); | |
395 | goto fail; | |
396 | } | |
397 | } | |
398 | (*path)[j++] = cp[i]; | |
399 | } | |
400 | ||
401 | if (j == 0) { | |
402 | error("Empty quotes"); | |
403 | goto fail; | |
404 | } | |
405 | *cpp = cp + i + strspn(cp + i, WHITESPACE); | |
406 | } else { | |
407 | /* Read to end of filename */ | |
408 | end = strpbrk(cp, WHITESPACE); | |
409 | if (end == NULL) | |
410 | end = strchr(cp, '\0'); | |
411 | *cpp = end + strspn(end, WHITESPACE); | |
412 | ||
413 | memcpy(*path, cp, end - cp); | |
414 | (*path)[end - cp] = '\0'; | |
415 | } | |
416 | return (0); | |
417 | ||
418 | fail: | |
419 | xfree(*path); | |
420 | *path = NULL; | |
421 | return (-1); | |
422 | } | |
423 | ||
424 | static int | |
425 | is_dir(char *path) | |
426 | { | |
427 | struct stat sb; | |
428 | ||
429 | /* XXX: report errors? */ | |
430 | if (stat(path, &sb) == -1) | |
431 | return(0); | |
432 | ||
433 | return(sb.st_mode & S_IFDIR); | |
434 | } | |
435 | ||
436 | static int | |
437 | is_reg(char *path) | |
438 | { | |
439 | struct stat sb; | |
440 | ||
441 | if (stat(path, &sb) == -1) | |
442 | fatal("stat %s: %s", path, strerror(errno)); | |
443 | ||
444 | return(S_ISREG(sb.st_mode)); | |
445 | } | |
446 | ||
447 | static int | |
448 | remote_is_dir(struct sftp_conn *conn, char *path) | |
449 | { | |
450 | Attrib *a; | |
451 | ||
452 | /* XXX: report errors? */ | |
453 | if ((a = do_stat(conn, path, 1)) == NULL) | |
454 | return(0); | |
455 | if (!(a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)) | |
456 | return(0); | |
457 | return(a->perm & S_IFDIR); | |
458 | } | |
459 | ||
460 | static int | |
461 | process_get(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag) | |
462 | { | |
463 | char *abs_src = NULL; | |
464 | char *abs_dst = NULL; | |
465 | char *tmp; | |
466 | glob_t g; | |
467 | int err = 0; | |
468 | int i; | |
469 | ||
470 | abs_src = xstrdup(src); | |
471 | abs_src = make_absolute(abs_src, pwd); | |
472 | ||
473 | memset(&g, 0, sizeof(g)); | |
474 | debug3("Looking up %s", abs_src); | |
475 | if (remote_glob(conn, abs_src, 0, NULL, &g)) { | |
476 | error("File \"%s\" not found.", abs_src); | |
477 | err = -1; | |
478 | goto out; | |
479 | } | |
480 | ||
481 | /* If multiple matches, dst must be a directory or unspecified */ | |
482 | if (g.gl_matchc > 1 && dst && !is_dir(dst)) { | |
483 | error("Multiple files match, but \"%s\" is not a directory", | |
484 | dst); | |
485 | err = -1; | |
486 | goto out; | |
487 | } | |
488 | ||
0e5de6f8 | 489 | for (i = 0; g.gl_pathv[i] && !interrupted; i++) { |
2cda7d6b | 490 | if (infer_path(g.gl_pathv[i], &tmp)) { |
491 | err = -1; | |
492 | goto out; | |
493 | } | |
494 | ||
495 | if (g.gl_matchc == 1 && dst) { | |
496 | /* If directory specified, append filename */ | |
497 | if (is_dir(dst)) { | |
498 | if (infer_path(g.gl_pathv[0], &tmp)) { | |
499 | err = 1; | |
500 | goto out; | |
501 | } | |
502 | abs_dst = path_append(dst, tmp); | |
503 | xfree(tmp); | |
504 | } else | |
505 | abs_dst = xstrdup(dst); | |
506 | } else if (dst) { | |
507 | abs_dst = path_append(dst, tmp); | |
508 | xfree(tmp); | |
509 | } else | |
510 | abs_dst = tmp; | |
511 | ||
512 | printf("Fetching %s to %s\n", g.gl_pathv[i], abs_dst); | |
513 | if (do_download(conn, g.gl_pathv[i], abs_dst, pflag) == -1) | |
514 | err = -1; | |
515 | xfree(abs_dst); | |
516 | abs_dst = NULL; | |
517 | } | |
518 | ||
519 | out: | |
520 | xfree(abs_src); | |
521 | if (abs_dst) | |
522 | xfree(abs_dst); | |
523 | globfree(&g); | |
524 | return(err); | |
525 | } | |
526 | ||
527 | static int | |
528 | process_put(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag) | |
529 | { | |
530 | char *tmp_dst = NULL; | |
531 | char *abs_dst = NULL; | |
532 | char *tmp; | |
533 | glob_t g; | |
534 | int err = 0; | |
535 | int i; | |
536 | ||
537 | if (dst) { | |
538 | tmp_dst = xstrdup(dst); | |
539 | tmp_dst = make_absolute(tmp_dst, pwd); | |
540 | } | |
541 | ||
542 | memset(&g, 0, sizeof(g)); | |
543 | debug3("Looking up %s", src); | |
544 | if (glob(src, 0, NULL, &g)) { | |
545 | error("File \"%s\" not found.", src); | |
546 | err = -1; | |
547 | goto out; | |
548 | } | |
549 | ||
550 | /* If multiple matches, dst may be directory or unspecified */ | |
551 | if (g.gl_matchc > 1 && tmp_dst && !remote_is_dir(conn, tmp_dst)) { | |
552 | error("Multiple files match, but \"%s\" is not a directory", | |
553 | tmp_dst); | |
554 | err = -1; | |
555 | goto out; | |
556 | } | |
557 | ||
0e5de6f8 | 558 | for (i = 0; g.gl_pathv[i] && !interrupted; i++) { |
2cda7d6b | 559 | if (!is_reg(g.gl_pathv[i])) { |
560 | error("skipping non-regular file %s", | |
561 | g.gl_pathv[i]); | |
562 | continue; | |
563 | } | |
564 | if (infer_path(g.gl_pathv[i], &tmp)) { | |
565 | err = -1; | |
566 | goto out; | |
567 | } | |
568 | ||
569 | if (g.gl_matchc == 1 && tmp_dst) { | |
570 | /* If directory specified, append filename */ | |
571 | if (remote_is_dir(conn, tmp_dst)) { | |
572 | if (infer_path(g.gl_pathv[0], &tmp)) { | |
573 | err = 1; | |
574 | goto out; | |
575 | } | |
576 | abs_dst = path_append(tmp_dst, tmp); | |
577 | xfree(tmp); | |
578 | } else | |
579 | abs_dst = xstrdup(tmp_dst); | |
580 | ||
581 | } else if (tmp_dst) { | |
582 | abs_dst = path_append(tmp_dst, tmp); | |
583 | xfree(tmp); | |
584 | } else | |
585 | abs_dst = make_absolute(tmp, pwd); | |
586 | ||
587 | printf("Uploading %s to %s\n", g.gl_pathv[i], abs_dst); | |
588 | if (do_upload(conn, g.gl_pathv[i], abs_dst, pflag) == -1) | |
589 | err = -1; | |
590 | } | |
591 | ||
592 | out: | |
593 | if (abs_dst) | |
594 | xfree(abs_dst); | |
595 | if (tmp_dst) | |
596 | xfree(tmp_dst); | |
597 | globfree(&g); | |
598 | return(err); | |
599 | } | |
600 | ||
601 | static int | |
602 | sdirent_comp(const void *aa, const void *bb) | |
603 | { | |
604 | SFTP_DIRENT *a = *(SFTP_DIRENT **)aa; | |
605 | SFTP_DIRENT *b = *(SFTP_DIRENT **)bb; | |
606 | ||
607 | return (strcmp(a->filename, b->filename)); | |
608 | } | |
609 | ||
610 | /* sftp ls.1 replacement for directories */ | |
611 | static int | |
612 | do_ls_dir(struct sftp_conn *conn, char *path, char *strip_path, int lflag) | |
613 | { | |
614 | int n, c = 1, colspace = 0, columns = 1; | |
615 | SFTP_DIRENT **d; | |
616 | ||
617 | if ((n = do_readdir(conn, path, &d)) != 0) | |
618 | return (n); | |
619 | ||
620 | if (!(lflag & SHORT_VIEW)) { | |
621 | int m = 0, width = 80; | |
622 | struct winsize ws; | |
623 | char *tmp; | |
624 | ||
625 | /* Count entries for sort and find longest filename */ | |
626 | for (n = 0; d[n] != NULL; n++) | |
627 | m = MAX(m, strlen(d[n]->filename)); | |
628 | ||
629 | /* Add any subpath that also needs to be counted */ | |
630 | tmp = path_strip(path, strip_path); | |
631 | m += strlen(tmp); | |
632 | xfree(tmp); | |
633 | ||
634 | if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1) | |
635 | width = ws.ws_col; | |
636 | ||
637 | columns = width / (m + 2); | |
638 | columns = MAX(columns, 1); | |
639 | colspace = width / columns; | |
640 | colspace = MIN(colspace, width); | |
641 | } | |
642 | ||
643 | qsort(d, n, sizeof(*d), sdirent_comp); | |
644 | ||
0e5de6f8 | 645 | for (n = 0; d[n] != NULL && !interrupted; n++) { |
2cda7d6b | 646 | char *tmp, *fname; |
647 | ||
648 | tmp = path_append(path, d[n]->filename); | |
649 | fname = path_strip(tmp, strip_path); | |
650 | xfree(tmp); | |
651 | ||
652 | if (lflag & LONG_VIEW) { | |
653 | char *lname; | |
654 | struct stat sb; | |
655 | ||
656 | memset(&sb, 0, sizeof(sb)); | |
657 | attrib_to_stat(&d[n]->a, &sb); | |
658 | lname = ls_file(fname, &sb, 1); | |
659 | printf("%s\n", lname); | |
660 | xfree(lname); | |
661 | } else { | |
662 | printf("%-*s", colspace, fname); | |
663 | if (c >= columns) { | |
664 | printf("\n"); | |
665 | c = 1; | |
666 | } else | |
667 | c++; | |
668 | } | |
669 | ||
670 | xfree(fname); | |
671 | } | |
672 | ||
673 | if (!(lflag & LONG_VIEW) && (c != 1)) | |
674 | printf("\n"); | |
675 | ||
676 | free_sftp_dirents(d); | |
677 | return (0); | |
678 | } | |
679 | ||
680 | /* sftp ls.1 replacement which handles path globs */ | |
681 | static int | |
682 | do_globbed_ls(struct sftp_conn *conn, char *path, char *strip_path, | |
683 | int lflag) | |
684 | { | |
685 | glob_t g; | |
686 | int i, c = 1, colspace = 0, columns = 1; | |
687 | Attrib *a; | |
688 | ||
689 | memset(&g, 0, sizeof(g)); | |
690 | ||
691 | if (remote_glob(conn, path, GLOB_MARK|GLOB_NOCHECK|GLOB_BRACE, | |
692 | NULL, &g)) { | |
693 | error("Can't ls: \"%s\" not found", path); | |
694 | return (-1); | |
695 | } | |
696 | ||
0e5de6f8 | 697 | if (interrupted) |
698 | goto out; | |
699 | ||
2cda7d6b | 700 | /* |
701 | * If the glob returns a single match, which is the same as the | |
702 | * input glob, and it is a directory, then just list its contents | |
703 | */ | |
704 | if (g.gl_pathc == 1 && | |
705 | strncmp(path, g.gl_pathv[0], strlen(g.gl_pathv[0]) - 1) == 0) { | |
706 | if ((a = do_lstat(conn, path, 1)) == NULL) { | |
707 | globfree(&g); | |
708 | return (-1); | |
709 | } | |
710 | if ((a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) && | |
711 | S_ISDIR(a->perm)) { | |
712 | globfree(&g); | |
713 | return (do_ls_dir(conn, path, strip_path, lflag)); | |
714 | } | |
715 | } | |
716 | ||
717 | if (!(lflag & SHORT_VIEW)) { | |
718 | int m = 0, width = 80; | |
719 | struct winsize ws; | |
720 | ||
721 | /* Count entries for sort and find longest filename */ | |
722 | for (i = 0; g.gl_pathv[i]; i++) | |
723 | m = MAX(m, strlen(g.gl_pathv[i])); | |
724 | ||
725 | if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1) | |
726 | width = ws.ws_col; | |
727 | ||
728 | columns = width / (m + 2); | |
729 | columns = MAX(columns, 1); | |
730 | colspace = width / columns; | |
731 | } | |
732 | ||
0e5de6f8 | 733 | for (i = 0; g.gl_pathv[i] && !interrupted; i++) { |
2cda7d6b | 734 | char *fname; |
735 | ||
736 | fname = path_strip(g.gl_pathv[i], strip_path); | |
737 | ||
738 | if (lflag & LONG_VIEW) { | |
739 | char *lname; | |
740 | struct stat sb; | |
741 | ||
742 | /* | |
743 | * XXX: this is slow - 1 roundtrip per path | |
744 | * A solution to this is to fork glob() and | |
745 | * build a sftp specific version which keeps the | |
746 | * attribs (which currently get thrown away) | |
747 | * that the server returns as well as the filenames. | |
748 | */ | |
749 | memset(&sb, 0, sizeof(sb)); | |
750 | a = do_lstat(conn, g.gl_pathv[i], 1); | |
751 | if (a != NULL) | |
752 | attrib_to_stat(a, &sb); | |
753 | lname = ls_file(fname, &sb, 1); | |
754 | printf("%s\n", lname); | |
755 | xfree(lname); | |
756 | } else { | |
757 | printf("%-*s", colspace, fname); | |
758 | if (c >= columns) { | |
759 | printf("\n"); | |
760 | c = 1; | |
761 | } else | |
762 | c++; | |
763 | } | |
764 | xfree(fname); | |
765 | } | |
766 | ||
767 | if (!(lflag & LONG_VIEW) && (c != 1)) | |
768 | printf("\n"); | |
769 | ||
0e5de6f8 | 770 | out: |
2cda7d6b | 771 | if (g.gl_pathc) |
772 | globfree(&g); | |
773 | ||
774 | return (0); | |
775 | } | |
776 | ||
777 | static int | |
778 | parse_args(const char **cpp, int *pflag, int *lflag, int *iflag, | |
779 | unsigned long *n_arg, char **path1, char **path2) | |
780 | { | |
781 | const char *cmd, *cp = *cpp; | |
782 | char *cp2; | |
783 | int base = 0; | |
784 | long l; | |
785 | int i, cmdnum; | |
786 | ||
787 | /* Skip leading whitespace */ | |
788 | cp = cp + strspn(cp, WHITESPACE); | |
789 | ||
790 | /* Ignore blank lines and lines which begin with comment '#' char */ | |
791 | if (*cp == '\0' || *cp == '#') | |
792 | return (0); | |
793 | ||
794 | /* Check for leading '-' (disable error processing) */ | |
795 | *iflag = 0; | |
796 | if (*cp == '-') { | |
797 | *iflag = 1; | |
798 | cp++; | |
799 | } | |
800 | ||
801 | /* Figure out which command we have */ | |
802 | for (i = 0; cmds[i].c; i++) { | |
803 | int cmdlen = strlen(cmds[i].c); | |
804 | ||
805 | /* Check for command followed by whitespace */ | |
806 | if (!strncasecmp(cp, cmds[i].c, cmdlen) && | |
807 | strchr(WHITESPACE, cp[cmdlen])) { | |
808 | cp += cmdlen; | |
809 | cp = cp + strspn(cp, WHITESPACE); | |
810 | break; | |
811 | } | |
812 | } | |
813 | cmdnum = cmds[i].n; | |
814 | cmd = cmds[i].c; | |
815 | ||
816 | /* Special case */ | |
817 | if (*cp == '!') { | |
818 | cp++; | |
819 | cmdnum = I_SHELL; | |
820 | } else if (cmdnum == -1) { | |
821 | error("Invalid command."); | |
822 | return (-1); | |
823 | } | |
824 | ||
825 | /* Get arguments and parse flags */ | |
826 | *lflag = *pflag = *n_arg = 0; | |
827 | *path1 = *path2 = NULL; | |
828 | switch (cmdnum) { | |
829 | case I_GET: | |
830 | case I_PUT: | |
831 | if (parse_getput_flags(&cp, pflag)) | |
832 | return(-1); | |
833 | /* Get first pathname (mandatory) */ | |
834 | if (get_pathname(&cp, path1)) | |
835 | return(-1); | |
836 | if (*path1 == NULL) { | |
837 | error("You must specify at least one path after a " | |
838 | "%s command.", cmd); | |
839 | return(-1); | |
840 | } | |
841 | /* Try to get second pathname (optional) */ | |
842 | if (get_pathname(&cp, path2)) | |
843 | return(-1); | |
844 | break; | |
845 | case I_RENAME: | |
846 | case I_SYMLINK: | |
847 | if (get_pathname(&cp, path1)) | |
848 | return(-1); | |
849 | if (get_pathname(&cp, path2)) | |
850 | return(-1); | |
851 | if (!*path1 || !*path2) { | |
852 | error("You must specify two paths after a %s " | |
853 | "command.", cmd); | |
854 | return(-1); | |
855 | } | |
856 | break; | |
857 | case I_RM: | |
858 | case I_MKDIR: | |
859 | case I_RMDIR: | |
860 | case I_CHDIR: | |
861 | case I_LCHDIR: | |
862 | case I_LMKDIR: | |
863 | /* Get pathname (mandatory) */ | |
864 | if (get_pathname(&cp, path1)) | |
865 | return(-1); | |
866 | if (*path1 == NULL) { | |
867 | error("You must specify a path after a %s command.", | |
868 | cmd); | |
869 | return(-1); | |
870 | } | |
871 | break; | |
872 | case I_LS: | |
873 | if (parse_ls_flags(&cp, lflag)) | |
874 | return(-1); | |
875 | /* Path is optional */ | |
876 | if (get_pathname(&cp, path1)) | |
877 | return(-1); | |
878 | break; | |
879 | case I_LLS: | |
880 | case I_SHELL: | |
881 | /* Uses the rest of the line */ | |
882 | break; | |
883 | case I_LUMASK: | |
884 | base = 8; | |
885 | case I_CHMOD: | |
886 | base = 8; | |
887 | case I_CHOWN: | |
888 | case I_CHGRP: | |
889 | /* Get numeric arg (mandatory) */ | |
890 | l = strtol(cp, &cp2, base); | |
891 | if (cp2 == cp || ((l == LONG_MIN || l == LONG_MAX) && | |
892 | errno == ERANGE) || l < 0) { | |
893 | error("You must supply a numeric argument " | |
894 | "to the %s command.", cmd); | |
895 | return(-1); | |
896 | } | |
897 | cp = cp2; | |
898 | *n_arg = l; | |
899 | if (cmdnum == I_LUMASK && strchr(WHITESPACE, *cp)) | |
900 | break; | |
901 | if (cmdnum == I_LUMASK || !strchr(WHITESPACE, *cp)) { | |
902 | error("You must supply a numeric argument " | |
903 | "to the %s command.", cmd); | |
904 | return(-1); | |
905 | } | |
906 | cp += strspn(cp, WHITESPACE); | |
907 | ||
908 | /* Get pathname (mandatory) */ | |
909 | if (get_pathname(&cp, path1)) | |
910 | return(-1); | |
911 | if (*path1 == NULL) { | |
912 | error("You must specify a path after a %s command.", | |
913 | cmd); | |
914 | return(-1); | |
915 | } | |
916 | break; | |
917 | case I_QUIT: | |
918 | case I_PWD: | |
919 | case I_LPWD: | |
920 | case I_HELP: | |
921 | case I_VERSION: | |
922 | case I_PROGRESS: | |
923 | break; | |
924 | default: | |
925 | fatal("Command not implemented"); | |
926 | } | |
927 | ||
928 | *cpp = cp; | |
929 | return(cmdnum); | |
930 | } | |
931 | ||
932 | static int | |
933 | parse_dispatch_command(struct sftp_conn *conn, const char *cmd, char **pwd, | |
934 | int err_abort) | |
935 | { | |
936 | char *path1, *path2, *tmp; | |
937 | int pflag, lflag, iflag, cmdnum, i; | |
938 | unsigned long n_arg; | |
939 | Attrib a, *aa; | |
940 | char path_buf[MAXPATHLEN]; | |
941 | int err = 0; | |
942 | glob_t g; | |
943 | ||
944 | path1 = path2 = NULL; | |
945 | cmdnum = parse_args(&cmd, &pflag, &lflag, &iflag, &n_arg, | |
946 | &path1, &path2); | |
947 | ||
948 | if (iflag != 0) | |
949 | err_abort = 0; | |
950 | ||
951 | memset(&g, 0, sizeof(g)); | |
952 | ||
953 | /* Perform command */ | |
954 | switch (cmdnum) { | |
955 | case 0: | |
956 | /* Blank line */ | |
957 | break; | |
958 | case -1: | |
959 | /* Unrecognized command */ | |
960 | err = -1; | |
961 | break; | |
962 | case I_GET: | |
963 | err = process_get(conn, path1, path2, *pwd, pflag); | |
964 | break; | |
965 | case I_PUT: | |
966 | err = process_put(conn, path1, path2, *pwd, pflag); | |
967 | break; | |
968 | case I_RENAME: | |
969 | path1 = make_absolute(path1, *pwd); | |
970 | path2 = make_absolute(path2, *pwd); | |
971 | err = do_rename(conn, path1, path2); | |
972 | break; | |
973 | case I_SYMLINK: | |
974 | path2 = make_absolute(path2, *pwd); | |
975 | err = do_symlink(conn, path1, path2); | |
976 | break; | |
977 | case I_RM: | |
978 | path1 = make_absolute(path1, *pwd); | |
979 | remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g); | |
0e5de6f8 | 980 | for (i = 0; g.gl_pathv[i] && !interrupted; i++) { |
2cda7d6b | 981 | printf("Removing %s\n", g.gl_pathv[i]); |
982 | err = do_rm(conn, g.gl_pathv[i]); | |
983 | if (err != 0 && err_abort) | |
984 | break; | |
985 | } | |
986 | break; | |
987 | case I_MKDIR: | |
988 | path1 = make_absolute(path1, *pwd); | |
989 | attrib_clear(&a); | |
990 | a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS; | |
991 | a.perm = 0777; | |
992 | err = do_mkdir(conn, path1, &a); | |
993 | break; | |
994 | case I_RMDIR: | |
995 | path1 = make_absolute(path1, *pwd); | |
996 | err = do_rmdir(conn, path1); | |
997 | break; | |
998 | case I_CHDIR: | |
999 | path1 = make_absolute(path1, *pwd); | |
1000 | if ((tmp = do_realpath(conn, path1)) == NULL) { | |
1001 | err = 1; | |
1002 | break; | |
1003 | } | |
1004 | if ((aa = do_stat(conn, tmp, 0)) == NULL) { | |
1005 | xfree(tmp); | |
1006 | err = 1; | |
1007 | break; | |
1008 | } | |
1009 | if (!(aa->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)) { | |
1010 | error("Can't change directory: Can't check target"); | |
1011 | xfree(tmp); | |
1012 | err = 1; | |
1013 | break; | |
1014 | } | |
1015 | if (!S_ISDIR(aa->perm)) { | |
1016 | error("Can't change directory: \"%s\" is not " | |
1017 | "a directory", tmp); | |
1018 | xfree(tmp); | |
1019 | err = 1; | |
1020 | break; | |
1021 | } | |
1022 | xfree(*pwd); | |
1023 | *pwd = tmp; | |
1024 | break; | |
1025 | case I_LS: | |
1026 | if (!path1) { | |
1027 | do_globbed_ls(conn, *pwd, *pwd, lflag); | |
1028 | break; | |
1029 | } | |
1030 | ||
1031 | /* Strip pwd off beginning of non-absolute paths */ | |
1032 | tmp = NULL; | |
1033 | if (*path1 != '/') | |
1034 | tmp = *pwd; | |
1035 | ||
1036 | path1 = make_absolute(path1, *pwd); | |
1037 | err = do_globbed_ls(conn, path1, tmp, lflag); | |
1038 | break; | |
1039 | case I_LCHDIR: | |
1040 | if (chdir(path1) == -1) { | |
1041 | error("Couldn't change local directory to " | |
1042 | "\"%s\": %s", path1, strerror(errno)); | |
1043 | err = 1; | |
1044 | } | |
1045 | break; | |
1046 | case I_LMKDIR: | |
1047 | if (mkdir(path1, 0777) == -1) { | |
1048 | error("Couldn't create local directory " | |
1049 | "\"%s\": %s", path1, strerror(errno)); | |
1050 | err = 1; | |
1051 | } | |
1052 | break; | |
1053 | case I_LLS: | |
1054 | local_do_ls(cmd); | |
1055 | break; | |
1056 | case I_SHELL: | |
1057 | local_do_shell(cmd); | |
1058 | break; | |
1059 | case I_LUMASK: | |
1060 | umask(n_arg); | |
1061 | printf("Local umask: %03lo\n", n_arg); | |
1062 | break; | |
1063 | case I_CHMOD: | |
1064 | path1 = make_absolute(path1, *pwd); | |
1065 | attrib_clear(&a); | |
1066 | a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS; | |
1067 | a.perm = n_arg; | |
1068 | remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g); | |
0e5de6f8 | 1069 | for (i = 0; g.gl_pathv[i] && !interrupted; i++) { |
2cda7d6b | 1070 | printf("Changing mode on %s\n", g.gl_pathv[i]); |
1071 | err = do_setstat(conn, g.gl_pathv[i], &a); | |
1072 | if (err != 0 && err_abort) | |
1073 | break; | |
1074 | } | |
1075 | break; | |
1076 | case I_CHOWN: | |
1077 | case I_CHGRP: | |
1078 | path1 = make_absolute(path1, *pwd); | |
1079 | remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g); | |
0e5de6f8 | 1080 | for (i = 0; g.gl_pathv[i] && !interrupted; i++) { |
2cda7d6b | 1081 | if (!(aa = do_stat(conn, g.gl_pathv[i], 0))) { |
1082 | if (err != 0 && err_abort) | |
1083 | break; | |
1084 | else | |
1085 | continue; | |
1086 | } | |
1087 | if (!(aa->flags & SSH2_FILEXFER_ATTR_UIDGID)) { | |
1088 | error("Can't get current ownership of " | |
1089 | "remote file \"%s\"", g.gl_pathv[i]); | |
1090 | if (err != 0 && err_abort) | |
1091 | break; | |
1092 | else | |
1093 | continue; | |
1094 | } | |
1095 | aa->flags &= SSH2_FILEXFER_ATTR_UIDGID; | |
1096 | if (cmdnum == I_CHOWN) { | |
1097 | printf("Changing owner on %s\n", g.gl_pathv[i]); | |
1098 | aa->uid = n_arg; | |
1099 | } else { | |
1100 | printf("Changing group on %s\n", g.gl_pathv[i]); | |
1101 | aa->gid = n_arg; | |
1102 | } | |
1103 | err = do_setstat(conn, g.gl_pathv[i], aa); | |
1104 | if (err != 0 && err_abort) | |
1105 | break; | |
1106 | } | |
1107 | break; | |
1108 | case I_PWD: | |
1109 | printf("Remote working directory: %s\n", *pwd); | |
1110 | break; | |
1111 | case I_LPWD: | |
1112 | if (!getcwd(path_buf, sizeof(path_buf))) { | |
1113 | error("Couldn't get local cwd: %s", strerror(errno)); | |
1114 | err = -1; | |
1115 | break; | |
1116 | } | |
1117 | printf("Local working directory: %s\n", path_buf); | |
1118 | break; | |
1119 | case I_QUIT: | |
1120 | /* Processed below */ | |
1121 | break; | |
1122 | case I_HELP: | |
1123 | help(); | |
1124 | break; | |
1125 | case I_VERSION: | |
1126 | printf("SFTP protocol version %u\n", sftp_proto_version(conn)); | |
1127 | break; | |
1128 | case I_PROGRESS: | |
1129 | showprogress = !showprogress; | |
1130 | if (showprogress) | |
1131 | printf("Progress meter enabled\n"); | |
1132 | else | |
1133 | printf("Progress meter disabled\n"); | |
1134 | break; | |
1135 | default: | |
1136 | fatal("%d is not implemented", cmdnum); | |
1137 | } | |
1138 | ||
1139 | if (g.gl_pathc) | |
1140 | globfree(&g); | |
1141 | if (path1) | |
1142 | xfree(path1); | |
1143 | if (path2) | |
1144 | xfree(path2); | |
1145 | ||
1146 | /* If an unignored error occurs in batch mode we should abort. */ | |
1147 | if (err_abort && err != 0) | |
1148 | return (-1); | |
1149 | else if (cmdnum == I_QUIT) | |
1150 | return (1); | |
1151 | ||
1152 | return (0); | |
1153 | } | |
1154 | ||
1155 | int | |
1156 | interactive_loop(int fd_in, int fd_out, char *file1, char *file2) | |
1157 | { | |
1158 | char *pwd; | |
1159 | char *dir = NULL; | |
1160 | char cmd[2048]; | |
1161 | struct sftp_conn *conn; | |
1162 | int err; | |
1163 | ||
1164 | conn = do_init(fd_in, fd_out, copy_buffer_len, num_requests); | |
1165 | if (conn == NULL) | |
1166 | fatal("Couldn't initialise connection to server"); | |
1167 | ||
1168 | pwd = do_realpath(conn, "."); | |
1169 | if (pwd == NULL) | |
1170 | fatal("Need cwd"); | |
1171 | ||
1172 | if (file1 != NULL) { | |
1173 | dir = xstrdup(file1); | |
1174 | dir = make_absolute(dir, pwd); | |
1175 | ||
1176 | if (remote_is_dir(conn, dir) && file2 == NULL) { | |
1177 | printf("Changing to: %s\n", dir); | |
1178 | snprintf(cmd, sizeof cmd, "cd \"%s\"", dir); | |
1179 | if (parse_dispatch_command(conn, cmd, &pwd, 1) != 0) | |
1180 | return (-1); | |
1181 | } else { | |
1182 | if (file2 == NULL) | |
1183 | snprintf(cmd, sizeof cmd, "get %s", dir); | |
1184 | else | |
1185 | snprintf(cmd, sizeof cmd, "get %s %s", dir, | |
1186 | file2); | |
1187 | ||
1188 | err = parse_dispatch_command(conn, cmd, &pwd, 1); | |
1189 | xfree(dir); | |
1190 | xfree(pwd); | |
1191 | return (err); | |
1192 | } | |
1193 | xfree(dir); | |
1194 | } | |
1195 | ||
1196 | #if HAVE_SETVBUF | |
1197 | setvbuf(stdout, NULL, _IOLBF, 0); | |
1198 | setvbuf(infile, NULL, _IOLBF, 0); | |
1199 | #else | |
1200 | setlinebuf(stdout); | |
1201 | setlinebuf(infile); | |
1202 | #endif | |
1203 | ||
1204 | err = 0; | |
1205 | for (;;) { | |
1206 | char *cp; | |
1207 | ||
0e5de6f8 | 1208 | signal(SIGINT, SIG_IGN); |
1209 | ||
2cda7d6b | 1210 | printf("sftp> "); |
1211 | ||
1212 | /* XXX: use libedit */ | |
1213 | if (fgets(cmd, sizeof(cmd), infile) == NULL) { | |
1214 | printf("\n"); | |
1215 | break; | |
1216 | } | |
1217 | ||
1218 | if (batchmode) /* Echo command */ | |
1219 | printf("%s", cmd); | |
1220 | ||
1221 | cp = strrchr(cmd, '\n'); | |
1222 | if (cp) | |
1223 | *cp = '\0'; | |
1224 | ||
0e5de6f8 | 1225 | /* Handle user interrupts gracefully during commands */ |
1226 | interrupted = 0; | |
1227 | signal(SIGINT, cmd_interrupt); | |
1228 | ||
2cda7d6b | 1229 | err = parse_dispatch_command(conn, cmd, &pwd, batchmode); |
1230 | if (err != 0) | |
1231 | break; | |
1232 | } | |
1233 | xfree(pwd); | |
1234 | ||
1235 | /* err == 1 signifies normal "quit" exit */ | |
1236 | return (err >= 0 ? 0 : -1); | |
1237 | } | |
b65c3807 | 1238 | |
1b558925 | 1239 | static void |
1240 | connect_to_server(char *path, char **args, int *in, int *out) | |
61e96248 | 1241 | { |
1242 | int c_in, c_out; | |
9906a836 | 1243 | |
61e96248 | 1244 | #ifdef USE_PIPES |
1245 | int pin[2], pout[2]; | |
9906a836 | 1246 | |
61e96248 | 1247 | if ((pipe(pin) == -1) || (pipe(pout) == -1)) |
1248 | fatal("pipe: %s", strerror(errno)); | |
1249 | *in = pin[0]; | |
1250 | *out = pout[1]; | |
1251 | c_in = pout[0]; | |
1252 | c_out = pin[1]; | |
1253 | #else /* USE_PIPES */ | |
1254 | int inout[2]; | |
9906a836 | 1255 | |
61e96248 | 1256 | if (socketpair(AF_UNIX, SOCK_STREAM, 0, inout) == -1) |
1257 | fatal("socketpair: %s", strerror(errno)); | |
1258 | *in = *out = inout[0]; | |
1259 | c_in = c_out = inout[1]; | |
1260 | #endif /* USE_PIPES */ | |
1261 | ||
1b558925 | 1262 | if ((sshpid = fork()) == -1) |
61e96248 | 1263 | fatal("fork: %s", strerror(errno)); |
1b558925 | 1264 | else if (sshpid == 0) { |
61e96248 | 1265 | if ((dup2(c_in, STDIN_FILENO) == -1) || |
1266 | (dup2(c_out, STDOUT_FILENO) == -1)) { | |
1267 | fprintf(stderr, "dup2: %s\n", strerror(errno)); | |
8dbffee9 | 1268 | _exit(1); |
61e96248 | 1269 | } |
1270 | close(*in); | |
1271 | close(*out); | |
1272 | close(c_in); | |
1273 | close(c_out); | |
0e5de6f8 | 1274 | |
1275 | /* | |
1276 | * The underlying ssh is in the same process group, so we must | |
1277 | * ignore SIGINT if we want to gracefully abort commands, | |
1278 | * otherwise the signal will make it to the ssh process and | |
1279 | * kill it too | |
1280 | */ | |
1281 | signal(SIGINT, SIG_IGN); | |
a96fd7c2 | 1282 | execv(path, args); |
1283 | fprintf(stderr, "exec: %s: %s\n", path, strerror(errno)); | |
8dbffee9 | 1284 | _exit(1); |
61e96248 | 1285 | } |
1286 | ||
1b558925 | 1287 | signal(SIGTERM, killchild); |
1288 | signal(SIGINT, killchild); | |
1289 | signal(SIGHUP, killchild); | |
61e96248 | 1290 | close(c_in); |
1291 | close(c_out); | |
1292 | } | |
1293 | ||
396c147e | 1294 | static void |
61e96248 | 1295 | usage(void) |
1296 | { | |
22be05a5 | 1297 | extern char *__progname; |
762715ce | 1298 | |
f1278af7 | 1299 | fprintf(stderr, |
433e60ac | 1300 | "usage: %s [-1Cv] [-B buffer_size] [-b batchfile] [-F ssh_config]\n" |
1301 | " [-o ssh_option] [-P sftp_server_path] [-R num_requests]\n" | |
1302 | " [-S program] [-s subsystem | sftp_server] host\n" | |
1303 | " %s [[user@]host[:file [file]]]\n" | |
1304 | " %s [[user@]host[:dir[/]]]\n" | |
1305 | " %s -b batchfile [user@]host\n", __progname, __progname, __progname, __progname); | |
61e96248 | 1306 | exit(1); |
1307 | } | |
1308 | ||
2b87da3b | 1309 | int |
61e96248 | 1310 | main(int argc, char **argv) |
1311 | { | |
9a36208d | 1312 | int in, out, ch, err; |
edeeab1e | 1313 | char *host, *userhost, *cp, *file2; |
8a624ebf | 1314 | int debug_level = 0, sshver = 2; |
1315 | char *file1 = NULL, *sftp_server = NULL; | |
a96fd7c2 | 1316 | char *ssh_program = _PATH_SSH_PROGRAM, *sftp_direct = NULL; |
8a624ebf | 1317 | LogLevel ll = SYSLOG_LEVEL_INFO; |
1318 | arglist args; | |
0426a3b4 | 1319 | extern int optind; |
1320 | extern char *optarg; | |
61e96248 | 1321 | |
fda04d7d | 1322 | __progname = ssh_get_progname(argv[0]); |
8a624ebf | 1323 | args.list = NULL; |
184eed6a | 1324 | addargs(&args, "ssh"); /* overwritten with ssh_program */ |
8a624ebf | 1325 | addargs(&args, "-oForwardX11 no"); |
1326 | addargs(&args, "-oForwardAgent no"); | |
e1c5bfaf | 1327 | addargs(&args, "-oClearAllForwardings yes"); |
ac414e17 | 1328 | |
8a624ebf | 1329 | ll = SYSLOG_LEVEL_INFO; |
ac414e17 | 1330 | infile = stdin; |
0426a3b4 | 1331 | |
c25d3df7 | 1332 | while ((ch = getopt(argc, argv, "1hvCo:s:S:b:B:F:P:R:")) != -1) { |
0426a3b4 | 1333 | switch (ch) { |
1334 | case 'C': | |
8a624ebf | 1335 | addargs(&args, "-C"); |
0426a3b4 | 1336 | break; |
1337 | case 'v': | |
8a624ebf | 1338 | if (debug_level < 3) { |
1339 | addargs(&args, "-v"); | |
1340 | ll = SYSLOG_LEVEL_DEBUG1 + debug_level; | |
1341 | } | |
1342 | debug_level++; | |
0426a3b4 | 1343 | break; |
f1278af7 | 1344 | case 'F': |
0426a3b4 | 1345 | case 'o': |
f1278af7 | 1346 | addargs(&args, "-%c%s", ch, optarg); |
0426a3b4 | 1347 | break; |
1348 | case '1': | |
8a624ebf | 1349 | sshver = 1; |
0426a3b4 | 1350 | if (sftp_server == NULL) |
1351 | sftp_server = _PATH_SFTP_SERVER; | |
1352 | break; | |
1353 | case 's': | |
1354 | sftp_server = optarg; | |
1355 | break; | |
1356 | case 'S': | |
1357 | ssh_program = optarg; | |
1358 | break; | |
a5ec8a3d | 1359 | case 'b': |
a8b64bb8 | 1360 | if (batchmode) |
1361 | fatal("Batch file already specified."); | |
1362 | ||
1363 | /* Allow "-" as stdin */ | |
1364 | if (strcmp(optarg, "-") != 0 && | |
1365 | (infile = fopen(optarg, "r")) == NULL) | |
1366 | fatal("%s (%s).", strerror(errno), optarg); | |
b65c3807 | 1367 | showprogress = 0; |
a8b64bb8 | 1368 | batchmode = 1; |
a5ec8a3d | 1369 | break; |
a96fd7c2 | 1370 | case 'P': |
1371 | sftp_direct = optarg; | |
1372 | break; | |
375f867e | 1373 | case 'B': |
1374 | copy_buffer_len = strtol(optarg, &cp, 10); | |
1375 | if (copy_buffer_len == 0 || *cp != '\0') | |
1376 | fatal("Invalid buffer size \"%s\"", optarg); | |
1377 | break; | |
c25d3df7 | 1378 | case 'R': |
1379 | num_requests = strtol(optarg, &cp, 10); | |
1380 | if (num_requests == 0 || *cp != '\0') | |
762715ce | 1381 | fatal("Invalid number of requests \"%s\"", |
c25d3df7 | 1382 | optarg); |
1383 | break; | |
0426a3b4 | 1384 | case 'h': |
1385 | default: | |
61e96248 | 1386 | usage(); |
1387 | } | |
1388 | } | |
1389 | ||
06abcf97 | 1390 | if (!isatty(STDERR_FILENO)) |
1391 | showprogress = 0; | |
1392 | ||
b69145c2 | 1393 | log_init(argv[0], ll, SYSLOG_FACILITY_USER, 1); |
1394 | ||
a96fd7c2 | 1395 | if (sftp_direct == NULL) { |
1396 | if (optind == argc || argc > (optind + 2)) | |
1397 | usage(); | |
61e96248 | 1398 | |
a96fd7c2 | 1399 | userhost = xstrdup(argv[optind]); |
1400 | file2 = argv[optind+1]; | |
edeeab1e | 1401 | |
15748b4d | 1402 | if ((host = strrchr(userhost, '@')) == NULL) |
a96fd7c2 | 1403 | host = userhost; |
1404 | else { | |
1405 | *host++ = '\0'; | |
1406 | if (!userhost[0]) { | |
1407 | fprintf(stderr, "Missing username\n"); | |
1408 | usage(); | |
1409 | } | |
1410 | addargs(&args, "-l%s",userhost); | |
61e96248 | 1411 | } |
61e96248 | 1412 | |
02de7c6e | 1413 | if ((cp = colon(host)) != NULL) { |
1414 | *cp++ = '\0'; | |
1415 | file1 = cp; | |
1416 | } | |
1417 | ||
a96fd7c2 | 1418 | host = cleanhostname(host); |
1419 | if (!*host) { | |
1420 | fprintf(stderr, "Missing hostname\n"); | |
1421 | usage(); | |
1422 | } | |
61e96248 | 1423 | |
a96fd7c2 | 1424 | addargs(&args, "-oProtocol %d", sshver); |
8a624ebf | 1425 | |
a96fd7c2 | 1426 | /* no subsystem if the server-spec contains a '/' */ |
1427 | if (sftp_server == NULL || strchr(sftp_server, '/') == NULL) | |
1428 | addargs(&args, "-s"); | |
61e96248 | 1429 | |
a96fd7c2 | 1430 | addargs(&args, "%s", host); |
762715ce | 1431 | addargs(&args, "%s", (sftp_server != NULL ? |
a96fd7c2 | 1432 | sftp_server : "sftp")); |
1433 | args.list[0] = ssh_program; | |
61e96248 | 1434 | |
a8b64bb8 | 1435 | if (!batchmode) |
1436 | fprintf(stderr, "Connecting to %s...\n", host); | |
1b558925 | 1437 | connect_to_server(ssh_program, args.list, &in, &out); |
a96fd7c2 | 1438 | } else { |
1439 | args.list = NULL; | |
1440 | addargs(&args, "sftp-server"); | |
61e96248 | 1441 | |
a8b64bb8 | 1442 | if (!batchmode) |
1443 | fprintf(stderr, "Attaching to %s...\n", sftp_direct); | |
1b558925 | 1444 | connect_to_server(sftp_direct, args.list, &in, &out); |
a96fd7c2 | 1445 | } |
61e96248 | 1446 | |
9a36208d | 1447 | err = interactive_loop(in, out, file1, file2); |
61e96248 | 1448 | |
51fb577a | 1449 | #if !defined(USE_PIPES) |
2cda7d6b | 1450 | shutdown(in, SHUT_RDWR); |
1451 | shutdown(out, SHUT_RDWR); | |
51fb577a | 1452 | #endif |
1453 | ||
61e96248 | 1454 | close(in); |
1455 | close(out); | |
a8b64bb8 | 1456 | if (batchmode) |
a5ec8a3d | 1457 | fclose(infile); |
61e96248 | 1458 | |
8c38e88b | 1459 | while (waitpid(sshpid, NULL, 0) == -1) |
1460 | if (errno != EINTR) | |
1461 | fatal("Couldn't wait for ssh process: %s", | |
1462 | strerror(errno)); | |
61e96248 | 1463 | |
9a36208d | 1464 | exit(err == 0 ? 0 : 1); |
61e96248 | 1465 | } |