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1 | /* $OpenBSD: sftp.c,v 1.79 2006/03/25 13:17:02 djm Exp $ */ | |
2 | /* | |
3 | * Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org> | |
4 | * | |
5 | * Permission to use, copy, modify, and distribute this software for any | |
6 | * purpose with or without fee is hereby granted, provided that the above | |
7 | * copyright notice and this permission notice appear in all copies. | |
8 | * | |
9 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
10 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
11 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |
12 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
13 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
14 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
15 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
16 | */ | |
17 | ||
18 | #include "includes.h" | |
19 | ||
20 | #include <sys/types.h> | |
21 | #ifdef HAVE_SYS_STAT_H | |
22 | # include <sys/stat.h> | |
23 | #endif | |
24 | #include <sys/ioctl.h> | |
25 | #include <sys/wait.h> | |
26 | ||
27 | #ifdef HAVE_PATHS_H | |
28 | # include <paths.h> | |
29 | #endif | |
30 | #ifdef USE_LIBEDIT | |
31 | #include <histedit.h> | |
32 | #else | |
33 | typedef void EditLine; | |
34 | #endif | |
35 | #include <signal.h> | |
36 | ||
37 | #include "buffer.h" | |
38 | #include "xmalloc.h" | |
39 | #include "log.h" | |
40 | #include "pathnames.h" | |
41 | #include "misc.h" | |
42 | ||
43 | #include "sftp.h" | |
44 | #include "sftp-common.h" | |
45 | #include "sftp-client.h" | |
46 | ||
47 | /* File to read commands from */ | |
48 | FILE* infile; | |
49 | ||
50 | /* Are we in batchfile mode? */ | |
51 | int batchmode = 0; | |
52 | ||
53 | /* Size of buffer used when copying files */ | |
54 | size_t copy_buffer_len = 32768; | |
55 | ||
56 | /* Number of concurrent outstanding requests */ | |
57 | size_t num_requests = 16; | |
58 | ||
59 | /* PID of ssh transport process */ | |
60 | static pid_t sshpid = -1; | |
61 | ||
62 | /* This is set to 0 if the progressmeter is not desired. */ | |
63 | int showprogress = 1; | |
64 | ||
65 | /* SIGINT received during command processing */ | |
66 | volatile sig_atomic_t interrupted = 0; | |
67 | ||
68 | /* I wish qsort() took a separate ctx for the comparison function...*/ | |
69 | int sort_flag; | |
70 | ||
71 | int remote_glob(struct sftp_conn *, const char *, int, | |
72 | int (*)(const char *, int), glob_t *); /* proto for sftp-glob.c */ | |
73 | ||
74 | extern char *__progname; | |
75 | ||
76 | /* Separators for interactive commands */ | |
77 | #define WHITESPACE " \t\r\n" | |
78 | ||
79 | /* ls flags */ | |
80 | #define LS_LONG_VIEW 0x01 /* Full view ala ls -l */ | |
81 | #define LS_SHORT_VIEW 0x02 /* Single row view ala ls -1 */ | |
82 | #define LS_NUMERIC_VIEW 0x04 /* Long view with numeric uid/gid */ | |
83 | #define LS_NAME_SORT 0x08 /* Sort by name (default) */ | |
84 | #define LS_TIME_SORT 0x10 /* Sort by mtime */ | |
85 | #define LS_SIZE_SORT 0x20 /* Sort by file size */ | |
86 | #define LS_REVERSE_SORT 0x40 /* Reverse sort order */ | |
87 | #define LS_SHOW_ALL 0x80 /* Don't skip filenames starting with '.' */ | |
88 | ||
89 | #define VIEW_FLAGS (LS_LONG_VIEW|LS_SHORT_VIEW|LS_NUMERIC_VIEW) | |
90 | #define SORT_FLAGS (LS_NAME_SORT|LS_TIME_SORT|LS_SIZE_SORT) | |
91 | ||
92 | /* Commands for interactive mode */ | |
93 | #define I_CHDIR 1 | |
94 | #define I_CHGRP 2 | |
95 | #define I_CHMOD 3 | |
96 | #define I_CHOWN 4 | |
97 | #define I_GET 5 | |
98 | #define I_HELP 6 | |
99 | #define I_LCHDIR 7 | |
100 | #define I_LLS 8 | |
101 | #define I_LMKDIR 9 | |
102 | #define I_LPWD 10 | |
103 | #define I_LS 11 | |
104 | #define I_LUMASK 12 | |
105 | #define I_MKDIR 13 | |
106 | #define I_PUT 14 | |
107 | #define I_PWD 15 | |
108 | #define I_QUIT 16 | |
109 | #define I_RENAME 17 | |
110 | #define I_RM 18 | |
111 | #define I_RMDIR 19 | |
112 | #define I_SHELL 20 | |
113 | #define I_SYMLINK 21 | |
114 | #define I_VERSION 22 | |
115 | #define I_PROGRESS 23 | |
116 | ||
117 | struct CMD { | |
118 | const char *c; | |
119 | const int n; | |
120 | }; | |
121 | ||
122 | static const struct CMD cmds[] = { | |
123 | { "bye", I_QUIT }, | |
124 | { "cd", I_CHDIR }, | |
125 | { "chdir", I_CHDIR }, | |
126 | { "chgrp", I_CHGRP }, | |
127 | { "chmod", I_CHMOD }, | |
128 | { "chown", I_CHOWN }, | |
129 | { "dir", I_LS }, | |
130 | { "exit", I_QUIT }, | |
131 | { "get", I_GET }, | |
132 | { "mget", I_GET }, | |
133 | { "help", I_HELP }, | |
134 | { "lcd", I_LCHDIR }, | |
135 | { "lchdir", I_LCHDIR }, | |
136 | { "lls", I_LLS }, | |
137 | { "lmkdir", I_LMKDIR }, | |
138 | { "ln", I_SYMLINK }, | |
139 | { "lpwd", I_LPWD }, | |
140 | { "ls", I_LS }, | |
141 | { "lumask", I_LUMASK }, | |
142 | { "mkdir", I_MKDIR }, | |
143 | { "progress", I_PROGRESS }, | |
144 | { "put", I_PUT }, | |
145 | { "mput", I_PUT }, | |
146 | { "pwd", I_PWD }, | |
147 | { "quit", I_QUIT }, | |
148 | { "rename", I_RENAME }, | |
149 | { "rm", I_RM }, | |
150 | { "rmdir", I_RMDIR }, | |
151 | { "symlink", I_SYMLINK }, | |
152 | { "version", I_VERSION }, | |
153 | { "!", I_SHELL }, | |
154 | { "?", I_HELP }, | |
155 | { NULL, -1} | |
156 | }; | |
157 | ||
158 | int interactive_loop(int fd_in, int fd_out, char *file1, char *file2); | |
159 | ||
160 | static void | |
161 | killchild(int signo) | |
162 | { | |
163 | if (sshpid > 1) { | |
164 | kill(sshpid, SIGTERM); | |
165 | waitpid(sshpid, NULL, 0); | |
166 | } | |
167 | ||
168 | _exit(1); | |
169 | } | |
170 | ||
171 | static void | |
172 | cmd_interrupt(int signo) | |
173 | { | |
174 | const char msg[] = "\rInterrupt \n"; | |
175 | int olderrno = errno; | |
176 | ||
177 | write(STDERR_FILENO, msg, sizeof(msg) - 1); | |
178 | interrupted = 1; | |
179 | errno = olderrno; | |
180 | } | |
181 | ||
182 | static void | |
183 | help(void) | |
184 | { | |
185 | printf("Available commands:\n"); | |
186 | printf("cd path Change remote directory to 'path'\n"); | |
187 | printf("lcd path Change local directory to 'path'\n"); | |
188 | printf("chgrp grp path Change group of file 'path' to 'grp'\n"); | |
189 | printf("chmod mode path Change permissions of file 'path' to 'mode'\n"); | |
190 | printf("chown own path Change owner of file 'path' to 'own'\n"); | |
191 | printf("help Display this help text\n"); | |
192 | printf("get remote-path [local-path] Download file\n"); | |
193 | printf("lls [ls-options [path]] Display local directory listing\n"); | |
194 | printf("ln oldpath newpath Symlink remote file\n"); | |
195 | printf("lmkdir path Create local directory\n"); | |
196 | printf("lpwd Print local working directory\n"); | |
197 | printf("ls [path] Display remote directory listing\n"); | |
198 | printf("lumask umask Set local umask to 'umask'\n"); | |
199 | printf("mkdir path Create remote directory\n"); | |
200 | printf("progress Toggle display of progress meter\n"); | |
201 | printf("put local-path [remote-path] Upload file\n"); | |
202 | printf("pwd Display remote working directory\n"); | |
203 | printf("exit Quit sftp\n"); | |
204 | printf("quit Quit sftp\n"); | |
205 | printf("rename oldpath newpath Rename remote file\n"); | |
206 | printf("rmdir path Remove remote directory\n"); | |
207 | printf("rm path Delete remote file\n"); | |
208 | printf("symlink oldpath newpath Symlink remote file\n"); | |
209 | printf("version Show SFTP version\n"); | |
210 | printf("!command Execute 'command' in local shell\n"); | |
211 | printf("! Escape to local shell\n"); | |
212 | printf("? Synonym for help\n"); | |
213 | } | |
214 | ||
215 | static void | |
216 | local_do_shell(const char *args) | |
217 | { | |
218 | int status; | |
219 | char *shell; | |
220 | pid_t pid; | |
221 | ||
222 | if (!*args) | |
223 | args = NULL; | |
224 | ||
225 | if ((shell = getenv("SHELL")) == NULL) | |
226 | shell = _PATH_BSHELL; | |
227 | ||
228 | if ((pid = fork()) == -1) | |
229 | fatal("Couldn't fork: %s", strerror(errno)); | |
230 | ||
231 | if (pid == 0) { | |
232 | /* XXX: child has pipe fds to ssh subproc open - issue? */ | |
233 | if (args) { | |
234 | debug3("Executing %s -c \"%s\"", shell, args); | |
235 | execl(shell, shell, "-c", args, (char *)NULL); | |
236 | } else { | |
237 | debug3("Executing %s", shell); | |
238 | execl(shell, shell, (char *)NULL); | |
239 | } | |
240 | fprintf(stderr, "Couldn't execute \"%s\": %s\n", shell, | |
241 | strerror(errno)); | |
242 | _exit(1); | |
243 | } | |
244 | while (waitpid(pid, &status, 0) == -1) | |
245 | if (errno != EINTR) | |
246 | fatal("Couldn't wait for child: %s", strerror(errno)); | |
247 | if (!WIFEXITED(status)) | |
248 | error("Shell exited abnormally"); | |
249 | else if (WEXITSTATUS(status)) | |
250 | error("Shell exited with status %d", WEXITSTATUS(status)); | |
251 | } | |
252 | ||
253 | static void | |
254 | local_do_ls(const char *args) | |
255 | { | |
256 | if (!args || !*args) | |
257 | local_do_shell(_PATH_LS); | |
258 | else { | |
259 | int len = strlen(_PATH_LS " ") + strlen(args) + 1; | |
260 | char *buf = xmalloc(len); | |
261 | ||
262 | /* XXX: quoting - rip quoting code from ftp? */ | |
263 | snprintf(buf, len, _PATH_LS " %s", args); | |
264 | local_do_shell(buf); | |
265 | xfree(buf); | |
266 | } | |
267 | } | |
268 | ||
269 | /* Strip one path (usually the pwd) from the start of another */ | |
270 | static char * | |
271 | path_strip(char *path, char *strip) | |
272 | { | |
273 | size_t len; | |
274 | ||
275 | if (strip == NULL) | |
276 | return (xstrdup(path)); | |
277 | ||
278 | len = strlen(strip); | |
279 | if (strncmp(path, strip, len) == 0) { | |
280 | if (strip[len - 1] != '/' && path[len] == '/') | |
281 | len++; | |
282 | return (xstrdup(path + len)); | |
283 | } | |
284 | ||
285 | return (xstrdup(path)); | |
286 | } | |
287 | ||
288 | static char * | |
289 | path_append(char *p1, char *p2) | |
290 | { | |
291 | char *ret; | |
292 | int len = strlen(p1) + strlen(p2) + 2; | |
293 | ||
294 | ret = xmalloc(len); | |
295 | strlcpy(ret, p1, len); | |
296 | if (p1[strlen(p1) - 1] != '/') | |
297 | strlcat(ret, "/", len); | |
298 | strlcat(ret, p2, len); | |
299 | ||
300 | return(ret); | |
301 | } | |
302 | ||
303 | static char * | |
304 | make_absolute(char *p, char *pwd) | |
305 | { | |
306 | char *abs_str; | |
307 | ||
308 | /* Derelativise */ | |
309 | if (p && p[0] != '/') { | |
310 | abs_str = path_append(pwd, p); | |
311 | xfree(p); | |
312 | return(abs_str); | |
313 | } else | |
314 | return(p); | |
315 | } | |
316 | ||
317 | static int | |
318 | infer_path(const char *p, char **ifp) | |
319 | { | |
320 | char *cp; | |
321 | ||
322 | cp = strrchr(p, '/'); | |
323 | if (cp == NULL) { | |
324 | *ifp = xstrdup(p); | |
325 | return(0); | |
326 | } | |
327 | ||
328 | if (!cp[1]) { | |
329 | error("Invalid path"); | |
330 | return(-1); | |
331 | } | |
332 | ||
333 | *ifp = xstrdup(cp + 1); | |
334 | return(0); | |
335 | } | |
336 | ||
337 | static int | |
338 | parse_getput_flags(const char **cpp, int *pflag) | |
339 | { | |
340 | const char *cp = *cpp; | |
341 | ||
342 | /* Check for flags */ | |
343 | if (cp[0] == '-' && cp[1] && strchr(WHITESPACE, cp[2])) { | |
344 | switch (cp[1]) { | |
345 | case 'p': | |
346 | case 'P': | |
347 | *pflag = 1; | |
348 | break; | |
349 | default: | |
350 | error("Invalid flag -%c", cp[1]); | |
351 | return(-1); | |
352 | } | |
353 | cp += 2; | |
354 | *cpp = cp + strspn(cp, WHITESPACE); | |
355 | } | |
356 | ||
357 | return(0); | |
358 | } | |
359 | ||
360 | static int | |
361 | parse_ls_flags(const char **cpp, int *lflag) | |
362 | { | |
363 | const char *cp = *cpp; | |
364 | ||
365 | /* Defaults */ | |
366 | *lflag = LS_NAME_SORT; | |
367 | ||
368 | /* Check for flags */ | |
369 | if (cp++[0] == '-') { | |
370 | for (; strchr(WHITESPACE, *cp) == NULL; cp++) { | |
371 | switch (*cp) { | |
372 | case 'l': | |
373 | *lflag &= ~VIEW_FLAGS; | |
374 | *lflag |= LS_LONG_VIEW; | |
375 | break; | |
376 | case '1': | |
377 | *lflag &= ~VIEW_FLAGS; | |
378 | *lflag |= LS_SHORT_VIEW; | |
379 | break; | |
380 | case 'n': | |
381 | *lflag &= ~VIEW_FLAGS; | |
382 | *lflag |= LS_NUMERIC_VIEW|LS_LONG_VIEW; | |
383 | break; | |
384 | case 'S': | |
385 | *lflag &= ~SORT_FLAGS; | |
386 | *lflag |= LS_SIZE_SORT; | |
387 | break; | |
388 | case 't': | |
389 | *lflag &= ~SORT_FLAGS; | |
390 | *lflag |= LS_TIME_SORT; | |
391 | break; | |
392 | case 'r': | |
393 | *lflag |= LS_REVERSE_SORT; | |
394 | break; | |
395 | case 'f': | |
396 | *lflag &= ~SORT_FLAGS; | |
397 | break; | |
398 | case 'a': | |
399 | *lflag |= LS_SHOW_ALL; | |
400 | break; | |
401 | default: | |
402 | error("Invalid flag -%c", *cp); | |
403 | return(-1); | |
404 | } | |
405 | } | |
406 | *cpp = cp + strspn(cp, WHITESPACE); | |
407 | } | |
408 | ||
409 | return(0); | |
410 | } | |
411 | ||
412 | static int | |
413 | get_pathname(const char **cpp, char **path) | |
414 | { | |
415 | const char *cp = *cpp, *end; | |
416 | char quot; | |
417 | u_int i, j; | |
418 | ||
419 | cp += strspn(cp, WHITESPACE); | |
420 | if (!*cp) { | |
421 | *cpp = cp; | |
422 | *path = NULL; | |
423 | return (0); | |
424 | } | |
425 | ||
426 | *path = xmalloc(strlen(cp) + 1); | |
427 | ||
428 | /* Check for quoted filenames */ | |
429 | if (*cp == '\"' || *cp == '\'') { | |
430 | quot = *cp++; | |
431 | ||
432 | /* Search for terminating quote, unescape some chars */ | |
433 | for (i = j = 0; i <= strlen(cp); i++) { | |
434 | if (cp[i] == quot) { /* Found quote */ | |
435 | i++; | |
436 | (*path)[j] = '\0'; | |
437 | break; | |
438 | } | |
439 | if (cp[i] == '\0') { /* End of string */ | |
440 | error("Unterminated quote"); | |
441 | goto fail; | |
442 | } | |
443 | if (cp[i] == '\\') { /* Escaped characters */ | |
444 | i++; | |
445 | if (cp[i] != '\'' && cp[i] != '\"' && | |
446 | cp[i] != '\\') { | |
447 | error("Bad escaped character '\\%c'", | |
448 | cp[i]); | |
449 | goto fail; | |
450 | } | |
451 | } | |
452 | (*path)[j++] = cp[i]; | |
453 | } | |
454 | ||
455 | if (j == 0) { | |
456 | error("Empty quotes"); | |
457 | goto fail; | |
458 | } | |
459 | *cpp = cp + i + strspn(cp + i, WHITESPACE); | |
460 | } else { | |
461 | /* Read to end of filename */ | |
462 | end = strpbrk(cp, WHITESPACE); | |
463 | if (end == NULL) | |
464 | end = strchr(cp, '\0'); | |
465 | *cpp = end + strspn(end, WHITESPACE); | |
466 | ||
467 | memcpy(*path, cp, end - cp); | |
468 | (*path)[end - cp] = '\0'; | |
469 | } | |
470 | return (0); | |
471 | ||
472 | fail: | |
473 | xfree(*path); | |
474 | *path = NULL; | |
475 | return (-1); | |
476 | } | |
477 | ||
478 | static int | |
479 | is_dir(char *path) | |
480 | { | |
481 | struct stat sb; | |
482 | ||
483 | /* XXX: report errors? */ | |
484 | if (stat(path, &sb) == -1) | |
485 | return(0); | |
486 | ||
487 | return(sb.st_mode & S_IFDIR); | |
488 | } | |
489 | ||
490 | static int | |
491 | is_reg(char *path) | |
492 | { | |
493 | struct stat sb; | |
494 | ||
495 | if (stat(path, &sb) == -1) | |
496 | fatal("stat %s: %s", path, strerror(errno)); | |
497 | ||
498 | return(S_ISREG(sb.st_mode)); | |
499 | } | |
500 | ||
501 | static int | |
502 | remote_is_dir(struct sftp_conn *conn, char *path) | |
503 | { | |
504 | Attrib *a; | |
505 | ||
506 | /* XXX: report errors? */ | |
507 | if ((a = do_stat(conn, path, 1)) == NULL) | |
508 | return(0); | |
509 | if (!(a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)) | |
510 | return(0); | |
511 | return(a->perm & S_IFDIR); | |
512 | } | |
513 | ||
514 | static int | |
515 | process_get(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag) | |
516 | { | |
517 | char *abs_src = NULL; | |
518 | char *abs_dst = NULL; | |
519 | char *tmp; | |
520 | glob_t g; | |
521 | int err = 0; | |
522 | int i; | |
523 | ||
524 | abs_src = xstrdup(src); | |
525 | abs_src = make_absolute(abs_src, pwd); | |
526 | ||
527 | memset(&g, 0, sizeof(g)); | |
528 | debug3("Looking up %s", abs_src); | |
529 | if (remote_glob(conn, abs_src, 0, NULL, &g)) { | |
530 | error("File \"%s\" not found.", abs_src); | |
531 | err = -1; | |
532 | goto out; | |
533 | } | |
534 | ||
535 | /* If multiple matches, dst must be a directory or unspecified */ | |
536 | if (g.gl_matchc > 1 && dst && !is_dir(dst)) { | |
537 | error("Multiple files match, but \"%s\" is not a directory", | |
538 | dst); | |
539 | err = -1; | |
540 | goto out; | |
541 | } | |
542 | ||
543 | for (i = 0; g.gl_pathv[i] && !interrupted; i++) { | |
544 | if (infer_path(g.gl_pathv[i], &tmp)) { | |
545 | err = -1; | |
546 | goto out; | |
547 | } | |
548 | ||
549 | if (g.gl_matchc == 1 && dst) { | |
550 | /* If directory specified, append filename */ | |
551 | if (is_dir(dst)) { | |
552 | if (infer_path(g.gl_pathv[0], &tmp)) { | |
553 | err = 1; | |
554 | goto out; | |
555 | } | |
556 | abs_dst = path_append(dst, tmp); | |
557 | xfree(tmp); | |
558 | } else | |
559 | abs_dst = xstrdup(dst); | |
560 | } else if (dst) { | |
561 | abs_dst = path_append(dst, tmp); | |
562 | xfree(tmp); | |
563 | } else | |
564 | abs_dst = tmp; | |
565 | ||
566 | printf("Fetching %s to %s\n", g.gl_pathv[i], abs_dst); | |
567 | if (do_download(conn, g.gl_pathv[i], abs_dst, pflag) == -1) | |
568 | err = -1; | |
569 | xfree(abs_dst); | |
570 | abs_dst = NULL; | |
571 | } | |
572 | ||
573 | out: | |
574 | xfree(abs_src); | |
575 | if (abs_dst) | |
576 | xfree(abs_dst); | |
577 | globfree(&g); | |
578 | return(err); | |
579 | } | |
580 | ||
581 | static int | |
582 | process_put(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag) | |
583 | { | |
584 | char *tmp_dst = NULL; | |
585 | char *abs_dst = NULL; | |
586 | char *tmp; | |
587 | glob_t g; | |
588 | int err = 0; | |
589 | int i; | |
590 | ||
591 | if (dst) { | |
592 | tmp_dst = xstrdup(dst); | |
593 | tmp_dst = make_absolute(tmp_dst, pwd); | |
594 | } | |
595 | ||
596 | memset(&g, 0, sizeof(g)); | |
597 | debug3("Looking up %s", src); | |
598 | if (glob(src, 0, NULL, &g)) { | |
599 | error("File \"%s\" not found.", src); | |
600 | err = -1; | |
601 | goto out; | |
602 | } | |
603 | ||
604 | /* If multiple matches, dst may be directory or unspecified */ | |
605 | if (g.gl_matchc > 1 && tmp_dst && !remote_is_dir(conn, tmp_dst)) { | |
606 | error("Multiple files match, but \"%s\" is not a directory", | |
607 | tmp_dst); | |
608 | err = -1; | |
609 | goto out; | |
610 | } | |
611 | ||
612 | for (i = 0; g.gl_pathv[i] && !interrupted; i++) { | |
613 | if (!is_reg(g.gl_pathv[i])) { | |
614 | error("skipping non-regular file %s", | |
615 | g.gl_pathv[i]); | |
616 | continue; | |
617 | } | |
618 | if (infer_path(g.gl_pathv[i], &tmp)) { | |
619 | err = -1; | |
620 | goto out; | |
621 | } | |
622 | ||
623 | if (g.gl_matchc == 1 && tmp_dst) { | |
624 | /* If directory specified, append filename */ | |
625 | if (remote_is_dir(conn, tmp_dst)) { | |
626 | if (infer_path(g.gl_pathv[0], &tmp)) { | |
627 | err = 1; | |
628 | goto out; | |
629 | } | |
630 | abs_dst = path_append(tmp_dst, tmp); | |
631 | xfree(tmp); | |
632 | } else | |
633 | abs_dst = xstrdup(tmp_dst); | |
634 | ||
635 | } else if (tmp_dst) { | |
636 | abs_dst = path_append(tmp_dst, tmp); | |
637 | xfree(tmp); | |
638 | } else | |
639 | abs_dst = make_absolute(tmp, pwd); | |
640 | ||
641 | printf("Uploading %s to %s\n", g.gl_pathv[i], abs_dst); | |
642 | if (do_upload(conn, g.gl_pathv[i], abs_dst, pflag) == -1) | |
643 | err = -1; | |
644 | } | |
645 | ||
646 | out: | |
647 | if (abs_dst) | |
648 | xfree(abs_dst); | |
649 | if (tmp_dst) | |
650 | xfree(tmp_dst); | |
651 | globfree(&g); | |
652 | return(err); | |
653 | } | |
654 | ||
655 | static int | |
656 | sdirent_comp(const void *aa, const void *bb) | |
657 | { | |
658 | SFTP_DIRENT *a = *(SFTP_DIRENT **)aa; | |
659 | SFTP_DIRENT *b = *(SFTP_DIRENT **)bb; | |
660 | int rmul = sort_flag & LS_REVERSE_SORT ? -1 : 1; | |
661 | ||
662 | #define NCMP(a,b) (a == b ? 0 : (a < b ? 1 : -1)) | |
663 | if (sort_flag & LS_NAME_SORT) | |
664 | return (rmul * strcmp(a->filename, b->filename)); | |
665 | else if (sort_flag & LS_TIME_SORT) | |
666 | return (rmul * NCMP(a->a.mtime, b->a.mtime)); | |
667 | else if (sort_flag & LS_SIZE_SORT) | |
668 | return (rmul * NCMP(a->a.size, b->a.size)); | |
669 | ||
670 | fatal("Unknown ls sort type"); | |
671 | } | |
672 | ||
673 | /* sftp ls.1 replacement for directories */ | |
674 | static int | |
675 | do_ls_dir(struct sftp_conn *conn, char *path, char *strip_path, int lflag) | |
676 | { | |
677 | int n; | |
678 | u_int c = 1, colspace = 0, columns = 1; | |
679 | SFTP_DIRENT **d; | |
680 | ||
681 | if ((n = do_readdir(conn, path, &d)) != 0) | |
682 | return (n); | |
683 | ||
684 | if (!(lflag & LS_SHORT_VIEW)) { | |
685 | u_int m = 0, width = 80; | |
686 | struct winsize ws; | |
687 | char *tmp; | |
688 | ||
689 | /* Count entries for sort and find longest filename */ | |
690 | for (n = 0; d[n] != NULL; n++) { | |
691 | if (d[n]->filename[0] != '.' || (lflag & LS_SHOW_ALL)) | |
692 | m = MAX(m, strlen(d[n]->filename)); | |
693 | } | |
694 | ||
695 | /* Add any subpath that also needs to be counted */ | |
696 | tmp = path_strip(path, strip_path); | |
697 | m += strlen(tmp); | |
698 | xfree(tmp); | |
699 | ||
700 | if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1) | |
701 | width = ws.ws_col; | |
702 | ||
703 | columns = width / (m + 2); | |
704 | columns = MAX(columns, 1); | |
705 | colspace = width / columns; | |
706 | colspace = MIN(colspace, width); | |
707 | } | |
708 | ||
709 | if (lflag & SORT_FLAGS) { | |
710 | for (n = 0; d[n] != NULL; n++) | |
711 | ; /* count entries */ | |
712 | sort_flag = lflag & (SORT_FLAGS|LS_REVERSE_SORT); | |
713 | qsort(d, n, sizeof(*d), sdirent_comp); | |
714 | } | |
715 | ||
716 | for (n = 0; d[n] != NULL && !interrupted; n++) { | |
717 | char *tmp, *fname; | |
718 | ||
719 | if (d[n]->filename[0] == '.' && !(lflag & LS_SHOW_ALL)) | |
720 | continue; | |
721 | ||
722 | tmp = path_append(path, d[n]->filename); | |
723 | fname = path_strip(tmp, strip_path); | |
724 | xfree(tmp); | |
725 | ||
726 | if (lflag & LS_LONG_VIEW) { | |
727 | if (lflag & LS_NUMERIC_VIEW) { | |
728 | char *lname; | |
729 | struct stat sb; | |
730 | ||
731 | memset(&sb, 0, sizeof(sb)); | |
732 | attrib_to_stat(&d[n]->a, &sb); | |
733 | lname = ls_file(fname, &sb, 1); | |
734 | printf("%s\n", lname); | |
735 | xfree(lname); | |
736 | } else | |
737 | printf("%s\n", d[n]->longname); | |
738 | } else { | |
739 | printf("%-*s", colspace, fname); | |
740 | if (c >= columns) { | |
741 | printf("\n"); | |
742 | c = 1; | |
743 | } else | |
744 | c++; | |
745 | } | |
746 | ||
747 | xfree(fname); | |
748 | } | |
749 | ||
750 | if (!(lflag & LS_LONG_VIEW) && (c != 1)) | |
751 | printf("\n"); | |
752 | ||
753 | free_sftp_dirents(d); | |
754 | return (0); | |
755 | } | |
756 | ||
757 | /* sftp ls.1 replacement which handles path globs */ | |
758 | static int | |
759 | do_globbed_ls(struct sftp_conn *conn, char *path, char *strip_path, | |
760 | int lflag) | |
761 | { | |
762 | glob_t g; | |
763 | u_int i, c = 1, colspace = 0, columns = 1; | |
764 | Attrib *a = NULL; | |
765 | ||
766 | memset(&g, 0, sizeof(g)); | |
767 | ||
768 | if (remote_glob(conn, path, GLOB_MARK|GLOB_NOCHECK|GLOB_BRACE, | |
769 | NULL, &g) || (g.gl_pathc && !g.gl_matchc)) { | |
770 | if (g.gl_pathc) | |
771 | globfree(&g); | |
772 | error("Can't ls: \"%s\" not found", path); | |
773 | return (-1); | |
774 | } | |
775 | ||
776 | if (interrupted) | |
777 | goto out; | |
778 | ||
779 | /* | |
780 | * If the glob returns a single match and it is a directory, | |
781 | * then just list its contents. | |
782 | */ | |
783 | if (g.gl_matchc == 1) { | |
784 | if ((a = do_lstat(conn, g.gl_pathv[0], 1)) == NULL) { | |
785 | globfree(&g); | |
786 | return (-1); | |
787 | } | |
788 | if ((a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) && | |
789 | S_ISDIR(a->perm)) { | |
790 | int err; | |
791 | ||
792 | err = do_ls_dir(conn, g.gl_pathv[0], strip_path, lflag); | |
793 | globfree(&g); | |
794 | return (err); | |
795 | } | |
796 | } | |
797 | ||
798 | if (!(lflag & LS_SHORT_VIEW)) { | |
799 | u_int m = 0, width = 80; | |
800 | struct winsize ws; | |
801 | ||
802 | /* Count entries for sort and find longest filename */ | |
803 | for (i = 0; g.gl_pathv[i]; i++) | |
804 | m = MAX(m, strlen(g.gl_pathv[i])); | |
805 | ||
806 | if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1) | |
807 | width = ws.ws_col; | |
808 | ||
809 | columns = width / (m + 2); | |
810 | columns = MAX(columns, 1); | |
811 | colspace = width / columns; | |
812 | } | |
813 | ||
814 | for (i = 0; g.gl_pathv[i] && !interrupted; i++, a = NULL) { | |
815 | char *fname; | |
816 | ||
817 | fname = path_strip(g.gl_pathv[i], strip_path); | |
818 | ||
819 | if (lflag & LS_LONG_VIEW) { | |
820 | char *lname; | |
821 | struct stat sb; | |
822 | ||
823 | /* | |
824 | * XXX: this is slow - 1 roundtrip per path | |
825 | * A solution to this is to fork glob() and | |
826 | * build a sftp specific version which keeps the | |
827 | * attribs (which currently get thrown away) | |
828 | * that the server returns as well as the filenames. | |
829 | */ | |
830 | memset(&sb, 0, sizeof(sb)); | |
831 | if (a == NULL) | |
832 | a = do_lstat(conn, g.gl_pathv[i], 1); | |
833 | if (a != NULL) | |
834 | attrib_to_stat(a, &sb); | |
835 | lname = ls_file(fname, &sb, 1); | |
836 | printf("%s\n", lname); | |
837 | xfree(lname); | |
838 | } else { | |
839 | printf("%-*s", colspace, fname); | |
840 | if (c >= columns) { | |
841 | printf("\n"); | |
842 | c = 1; | |
843 | } else | |
844 | c++; | |
845 | } | |
846 | xfree(fname); | |
847 | } | |
848 | ||
849 | if (!(lflag & LS_LONG_VIEW) && (c != 1)) | |
850 | printf("\n"); | |
851 | ||
852 | out: | |
853 | if (g.gl_pathc) | |
854 | globfree(&g); | |
855 | ||
856 | return (0); | |
857 | } | |
858 | ||
859 | static int | |
860 | parse_args(const char **cpp, int *pflag, int *lflag, int *iflag, | |
861 | unsigned long *n_arg, char **path1, char **path2) | |
862 | { | |
863 | const char *cmd, *cp = *cpp; | |
864 | char *cp2; | |
865 | int base = 0; | |
866 | long l; | |
867 | int i, cmdnum; | |
868 | ||
869 | /* Skip leading whitespace */ | |
870 | cp = cp + strspn(cp, WHITESPACE); | |
871 | ||
872 | /* Ignore blank lines and lines which begin with comment '#' char */ | |
873 | if (*cp == '\0' || *cp == '#') | |
874 | return (0); | |
875 | ||
876 | /* Check for leading '-' (disable error processing) */ | |
877 | *iflag = 0; | |
878 | if (*cp == '-') { | |
879 | *iflag = 1; | |
880 | cp++; | |
881 | } | |
882 | ||
883 | /* Figure out which command we have */ | |
884 | for (i = 0; cmds[i].c; i++) { | |
885 | int cmdlen = strlen(cmds[i].c); | |
886 | ||
887 | /* Check for command followed by whitespace */ | |
888 | if (!strncasecmp(cp, cmds[i].c, cmdlen) && | |
889 | strchr(WHITESPACE, cp[cmdlen])) { | |
890 | cp += cmdlen; | |
891 | cp = cp + strspn(cp, WHITESPACE); | |
892 | break; | |
893 | } | |
894 | } | |
895 | cmdnum = cmds[i].n; | |
896 | cmd = cmds[i].c; | |
897 | ||
898 | /* Special case */ | |
899 | if (*cp == '!') { | |
900 | cp++; | |
901 | cmdnum = I_SHELL; | |
902 | } else if (cmdnum == -1) { | |
903 | error("Invalid command."); | |
904 | return (-1); | |
905 | } | |
906 | ||
907 | /* Get arguments and parse flags */ | |
908 | *lflag = *pflag = *n_arg = 0; | |
909 | *path1 = *path2 = NULL; | |
910 | switch (cmdnum) { | |
911 | case I_GET: | |
912 | case I_PUT: | |
913 | if (parse_getput_flags(&cp, pflag)) | |
914 | return(-1); | |
915 | /* Get first pathname (mandatory) */ | |
916 | if (get_pathname(&cp, path1)) | |
917 | return(-1); | |
918 | if (*path1 == NULL) { | |
919 | error("You must specify at least one path after a " | |
920 | "%s command.", cmd); | |
921 | return(-1); | |
922 | } | |
923 | /* Try to get second pathname (optional) */ | |
924 | if (get_pathname(&cp, path2)) | |
925 | return(-1); | |
926 | break; | |
927 | case I_RENAME: | |
928 | case I_SYMLINK: | |
929 | if (get_pathname(&cp, path1)) | |
930 | return(-1); | |
931 | if (get_pathname(&cp, path2)) | |
932 | return(-1); | |
933 | if (!*path1 || !*path2) { | |
934 | error("You must specify two paths after a %s " | |
935 | "command.", cmd); | |
936 | return(-1); | |
937 | } | |
938 | break; | |
939 | case I_RM: | |
940 | case I_MKDIR: | |
941 | case I_RMDIR: | |
942 | case I_CHDIR: | |
943 | case I_LCHDIR: | |
944 | case I_LMKDIR: | |
945 | /* Get pathname (mandatory) */ | |
946 | if (get_pathname(&cp, path1)) | |
947 | return(-1); | |
948 | if (*path1 == NULL) { | |
949 | error("You must specify a path after a %s command.", | |
950 | cmd); | |
951 | return(-1); | |
952 | } | |
953 | break; | |
954 | case I_LS: | |
955 | if (parse_ls_flags(&cp, lflag)) | |
956 | return(-1); | |
957 | /* Path is optional */ | |
958 | if (get_pathname(&cp, path1)) | |
959 | return(-1); | |
960 | break; | |
961 | case I_LLS: | |
962 | case I_SHELL: | |
963 | /* Uses the rest of the line */ | |
964 | break; | |
965 | case I_LUMASK: | |
966 | base = 8; | |
967 | case I_CHMOD: | |
968 | base = 8; | |
969 | case I_CHOWN: | |
970 | case I_CHGRP: | |
971 | /* Get numeric arg (mandatory) */ | |
972 | l = strtol(cp, &cp2, base); | |
973 | if (cp2 == cp || ((l == LONG_MIN || l == LONG_MAX) && | |
974 | errno == ERANGE) || l < 0) { | |
975 | error("You must supply a numeric argument " | |
976 | "to the %s command.", cmd); | |
977 | return(-1); | |
978 | } | |
979 | cp = cp2; | |
980 | *n_arg = l; | |
981 | if (cmdnum == I_LUMASK && strchr(WHITESPACE, *cp)) | |
982 | break; | |
983 | if (cmdnum == I_LUMASK || !strchr(WHITESPACE, *cp)) { | |
984 | error("You must supply a numeric argument " | |
985 | "to the %s command.", cmd); | |
986 | return(-1); | |
987 | } | |
988 | cp += strspn(cp, WHITESPACE); | |
989 | ||
990 | /* Get pathname (mandatory) */ | |
991 | if (get_pathname(&cp, path1)) | |
992 | return(-1); | |
993 | if (*path1 == NULL) { | |
994 | error("You must specify a path after a %s command.", | |
995 | cmd); | |
996 | return(-1); | |
997 | } | |
998 | break; | |
999 | case I_QUIT: | |
1000 | case I_PWD: | |
1001 | case I_LPWD: | |
1002 | case I_HELP: | |
1003 | case I_VERSION: | |
1004 | case I_PROGRESS: | |
1005 | break; | |
1006 | default: | |
1007 | fatal("Command not implemented"); | |
1008 | } | |
1009 | ||
1010 | *cpp = cp; | |
1011 | return(cmdnum); | |
1012 | } | |
1013 | ||
1014 | static int | |
1015 | parse_dispatch_command(struct sftp_conn *conn, const char *cmd, char **pwd, | |
1016 | int err_abort) | |
1017 | { | |
1018 | char *path1, *path2, *tmp; | |
1019 | int pflag, lflag, iflag, cmdnum, i; | |
1020 | unsigned long n_arg; | |
1021 | Attrib a, *aa; | |
1022 | char path_buf[MAXPATHLEN]; | |
1023 | int err = 0; | |
1024 | glob_t g; | |
1025 | ||
1026 | path1 = path2 = NULL; | |
1027 | cmdnum = parse_args(&cmd, &pflag, &lflag, &iflag, &n_arg, | |
1028 | &path1, &path2); | |
1029 | ||
1030 | if (iflag != 0) | |
1031 | err_abort = 0; | |
1032 | ||
1033 | memset(&g, 0, sizeof(g)); | |
1034 | ||
1035 | /* Perform command */ | |
1036 | switch (cmdnum) { | |
1037 | case 0: | |
1038 | /* Blank line */ | |
1039 | break; | |
1040 | case -1: | |
1041 | /* Unrecognized command */ | |
1042 | err = -1; | |
1043 | break; | |
1044 | case I_GET: | |
1045 | err = process_get(conn, path1, path2, *pwd, pflag); | |
1046 | break; | |
1047 | case I_PUT: | |
1048 | err = process_put(conn, path1, path2, *pwd, pflag); | |
1049 | break; | |
1050 | case I_RENAME: | |
1051 | path1 = make_absolute(path1, *pwd); | |
1052 | path2 = make_absolute(path2, *pwd); | |
1053 | err = do_rename(conn, path1, path2); | |
1054 | break; | |
1055 | case I_SYMLINK: | |
1056 | path2 = make_absolute(path2, *pwd); | |
1057 | err = do_symlink(conn, path1, path2); | |
1058 | break; | |
1059 | case I_RM: | |
1060 | path1 = make_absolute(path1, *pwd); | |
1061 | remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g); | |
1062 | for (i = 0; g.gl_pathv[i] && !interrupted; i++) { | |
1063 | printf("Removing %s\n", g.gl_pathv[i]); | |
1064 | err = do_rm(conn, g.gl_pathv[i]); | |
1065 | if (err != 0 && err_abort) | |
1066 | break; | |
1067 | } | |
1068 | break; | |
1069 | case I_MKDIR: | |
1070 | path1 = make_absolute(path1, *pwd); | |
1071 | attrib_clear(&a); | |
1072 | a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS; | |
1073 | a.perm = 0777; | |
1074 | err = do_mkdir(conn, path1, &a); | |
1075 | break; | |
1076 | case I_RMDIR: | |
1077 | path1 = make_absolute(path1, *pwd); | |
1078 | err = do_rmdir(conn, path1); | |
1079 | break; | |
1080 | case I_CHDIR: | |
1081 | path1 = make_absolute(path1, *pwd); | |
1082 | if ((tmp = do_realpath(conn, path1)) == NULL) { | |
1083 | err = 1; | |
1084 | break; | |
1085 | } | |
1086 | if ((aa = do_stat(conn, tmp, 0)) == NULL) { | |
1087 | xfree(tmp); | |
1088 | err = 1; | |
1089 | break; | |
1090 | } | |
1091 | if (!(aa->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)) { | |
1092 | error("Can't change directory: Can't check target"); | |
1093 | xfree(tmp); | |
1094 | err = 1; | |
1095 | break; | |
1096 | } | |
1097 | if (!S_ISDIR(aa->perm)) { | |
1098 | error("Can't change directory: \"%s\" is not " | |
1099 | "a directory", tmp); | |
1100 | xfree(tmp); | |
1101 | err = 1; | |
1102 | break; | |
1103 | } | |
1104 | xfree(*pwd); | |
1105 | *pwd = tmp; | |
1106 | break; | |
1107 | case I_LS: | |
1108 | if (!path1) { | |
1109 | do_globbed_ls(conn, *pwd, *pwd, lflag); | |
1110 | break; | |
1111 | } | |
1112 | ||
1113 | /* Strip pwd off beginning of non-absolute paths */ | |
1114 | tmp = NULL; | |
1115 | if (*path1 != '/') | |
1116 | tmp = *pwd; | |
1117 | ||
1118 | path1 = make_absolute(path1, *pwd); | |
1119 | err = do_globbed_ls(conn, path1, tmp, lflag); | |
1120 | break; | |
1121 | case I_LCHDIR: | |
1122 | if (chdir(path1) == -1) { | |
1123 | error("Couldn't change local directory to " | |
1124 | "\"%s\": %s", path1, strerror(errno)); | |
1125 | err = 1; | |
1126 | } | |
1127 | break; | |
1128 | case I_LMKDIR: | |
1129 | if (mkdir(path1, 0777) == -1) { | |
1130 | error("Couldn't create local directory " | |
1131 | "\"%s\": %s", path1, strerror(errno)); | |
1132 | err = 1; | |
1133 | } | |
1134 | break; | |
1135 | case I_LLS: | |
1136 | local_do_ls(cmd); | |
1137 | break; | |
1138 | case I_SHELL: | |
1139 | local_do_shell(cmd); | |
1140 | break; | |
1141 | case I_LUMASK: | |
1142 | umask(n_arg); | |
1143 | printf("Local umask: %03lo\n", n_arg); | |
1144 | break; | |
1145 | case I_CHMOD: | |
1146 | path1 = make_absolute(path1, *pwd); | |
1147 | attrib_clear(&a); | |
1148 | a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS; | |
1149 | a.perm = n_arg; | |
1150 | remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g); | |
1151 | for (i = 0; g.gl_pathv[i] && !interrupted; i++) { | |
1152 | printf("Changing mode on %s\n", g.gl_pathv[i]); | |
1153 | err = do_setstat(conn, g.gl_pathv[i], &a); | |
1154 | if (err != 0 && err_abort) | |
1155 | break; | |
1156 | } | |
1157 | break; | |
1158 | case I_CHOWN: | |
1159 | case I_CHGRP: | |
1160 | path1 = make_absolute(path1, *pwd); | |
1161 | remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g); | |
1162 | for (i = 0; g.gl_pathv[i] && !interrupted; i++) { | |
1163 | if (!(aa = do_stat(conn, g.gl_pathv[i], 0))) { | |
1164 | if (err != 0 && err_abort) | |
1165 | break; | |
1166 | else | |
1167 | continue; | |
1168 | } | |
1169 | if (!(aa->flags & SSH2_FILEXFER_ATTR_UIDGID)) { | |
1170 | error("Can't get current ownership of " | |
1171 | "remote file \"%s\"", g.gl_pathv[i]); | |
1172 | if (err != 0 && err_abort) | |
1173 | break; | |
1174 | else | |
1175 | continue; | |
1176 | } | |
1177 | aa->flags &= SSH2_FILEXFER_ATTR_UIDGID; | |
1178 | if (cmdnum == I_CHOWN) { | |
1179 | printf("Changing owner on %s\n", g.gl_pathv[i]); | |
1180 | aa->uid = n_arg; | |
1181 | } else { | |
1182 | printf("Changing group on %s\n", g.gl_pathv[i]); | |
1183 | aa->gid = n_arg; | |
1184 | } | |
1185 | err = do_setstat(conn, g.gl_pathv[i], aa); | |
1186 | if (err != 0 && err_abort) | |
1187 | break; | |
1188 | } | |
1189 | break; | |
1190 | case I_PWD: | |
1191 | printf("Remote working directory: %s\n", *pwd); | |
1192 | break; | |
1193 | case I_LPWD: | |
1194 | if (!getcwd(path_buf, sizeof(path_buf))) { | |
1195 | error("Couldn't get local cwd: %s", strerror(errno)); | |
1196 | err = -1; | |
1197 | break; | |
1198 | } | |
1199 | printf("Local working directory: %s\n", path_buf); | |
1200 | break; | |
1201 | case I_QUIT: | |
1202 | /* Processed below */ | |
1203 | break; | |
1204 | case I_HELP: | |
1205 | help(); | |
1206 | break; | |
1207 | case I_VERSION: | |
1208 | printf("SFTP protocol version %u\n", sftp_proto_version(conn)); | |
1209 | break; | |
1210 | case I_PROGRESS: | |
1211 | showprogress = !showprogress; | |
1212 | if (showprogress) | |
1213 | printf("Progress meter enabled\n"); | |
1214 | else | |
1215 | printf("Progress meter disabled\n"); | |
1216 | break; | |
1217 | default: | |
1218 | fatal("%d is not implemented", cmdnum); | |
1219 | } | |
1220 | ||
1221 | if (g.gl_pathc) | |
1222 | globfree(&g); | |
1223 | if (path1) | |
1224 | xfree(path1); | |
1225 | if (path2) | |
1226 | xfree(path2); | |
1227 | ||
1228 | /* If an unignored error occurs in batch mode we should abort. */ | |
1229 | if (err_abort && err != 0) | |
1230 | return (-1); | |
1231 | else if (cmdnum == I_QUIT) | |
1232 | return (1); | |
1233 | ||
1234 | return (0); | |
1235 | } | |
1236 | ||
1237 | #ifdef USE_LIBEDIT | |
1238 | static char * | |
1239 | prompt(EditLine *el) | |
1240 | { | |
1241 | return ("sftp> "); | |
1242 | } | |
1243 | #endif | |
1244 | ||
1245 | int | |
1246 | interactive_loop(int fd_in, int fd_out, char *file1, char *file2) | |
1247 | { | |
1248 | char *pwd; | |
1249 | char *dir = NULL; | |
1250 | char cmd[2048]; | |
1251 | struct sftp_conn *conn; | |
1252 | int err, interactive; | |
1253 | EditLine *el = NULL; | |
1254 | #ifdef USE_LIBEDIT | |
1255 | History *hl = NULL; | |
1256 | HistEvent hev; | |
1257 | extern char *__progname; | |
1258 | ||
1259 | if (!batchmode && isatty(STDIN_FILENO)) { | |
1260 | if ((el = el_init(__progname, stdin, stdout, stderr)) == NULL) | |
1261 | fatal("Couldn't initialise editline"); | |
1262 | if ((hl = history_init()) == NULL) | |
1263 | fatal("Couldn't initialise editline history"); | |
1264 | history(hl, &hev, H_SETSIZE, 100); | |
1265 | el_set(el, EL_HIST, history, hl); | |
1266 | ||
1267 | el_set(el, EL_PROMPT, prompt); | |
1268 | el_set(el, EL_EDITOR, "emacs"); | |
1269 | el_set(el, EL_TERMINAL, NULL); | |
1270 | el_set(el, EL_SIGNAL, 1); | |
1271 | el_source(el, NULL); | |
1272 | } | |
1273 | #endif /* USE_LIBEDIT */ | |
1274 | ||
1275 | conn = do_init(fd_in, fd_out, copy_buffer_len, num_requests); | |
1276 | if (conn == NULL) | |
1277 | fatal("Couldn't initialise connection to server"); | |
1278 | ||
1279 | pwd = do_realpath(conn, "."); | |
1280 | if (pwd == NULL) | |
1281 | fatal("Need cwd"); | |
1282 | ||
1283 | if (file1 != NULL) { | |
1284 | dir = xstrdup(file1); | |
1285 | dir = make_absolute(dir, pwd); | |
1286 | ||
1287 | if (remote_is_dir(conn, dir) && file2 == NULL) { | |
1288 | printf("Changing to: %s\n", dir); | |
1289 | snprintf(cmd, sizeof cmd, "cd \"%s\"", dir); | |
1290 | if (parse_dispatch_command(conn, cmd, &pwd, 1) != 0) { | |
1291 | xfree(dir); | |
1292 | xfree(pwd); | |
1293 | xfree(conn); | |
1294 | return (-1); | |
1295 | } | |
1296 | } else { | |
1297 | if (file2 == NULL) | |
1298 | snprintf(cmd, sizeof cmd, "get %s", dir); | |
1299 | else | |
1300 | snprintf(cmd, sizeof cmd, "get %s %s", dir, | |
1301 | file2); | |
1302 | ||
1303 | err = parse_dispatch_command(conn, cmd, &pwd, 1); | |
1304 | xfree(dir); | |
1305 | xfree(pwd); | |
1306 | xfree(conn); | |
1307 | return (err); | |
1308 | } | |
1309 | xfree(dir); | |
1310 | } | |
1311 | ||
1312 | #if defined(HAVE_SETVBUF) && !defined(BROKEN_SETVBUF) | |
1313 | setvbuf(stdout, NULL, _IOLBF, 0); | |
1314 | setvbuf(infile, NULL, _IOLBF, 0); | |
1315 | #else | |
1316 | setlinebuf(stdout); | |
1317 | setlinebuf(infile); | |
1318 | #endif | |
1319 | ||
1320 | interactive = !batchmode && isatty(STDIN_FILENO); | |
1321 | err = 0; | |
1322 | for (;;) { | |
1323 | char *cp; | |
1324 | ||
1325 | signal(SIGINT, SIG_IGN); | |
1326 | ||
1327 | if (el == NULL) { | |
1328 | if (interactive) | |
1329 | printf("sftp> "); | |
1330 | if (fgets(cmd, sizeof(cmd), infile) == NULL) { | |
1331 | if (interactive) | |
1332 | printf("\n"); | |
1333 | break; | |
1334 | } | |
1335 | if (!interactive) { /* Echo command */ | |
1336 | printf("sftp> %s", cmd); | |
1337 | if (strlen(cmd) > 0 && | |
1338 | cmd[strlen(cmd) - 1] != '\n') | |
1339 | printf("\n"); | |
1340 | } | |
1341 | } else { | |
1342 | #ifdef USE_LIBEDIT | |
1343 | const char *line; | |
1344 | int count = 0; | |
1345 | ||
1346 | if ((line = el_gets(el, &count)) == NULL || count <= 0) { | |
1347 | printf("\n"); | |
1348 | break; | |
1349 | } | |
1350 | history(hl, &hev, H_ENTER, line); | |
1351 | if (strlcpy(cmd, line, sizeof(cmd)) >= sizeof(cmd)) { | |
1352 | fprintf(stderr, "Error: input line too long\n"); | |
1353 | continue; | |
1354 | } | |
1355 | #endif /* USE_LIBEDIT */ | |
1356 | } | |
1357 | ||
1358 | cp = strrchr(cmd, '\n'); | |
1359 | if (cp) | |
1360 | *cp = '\0'; | |
1361 | ||
1362 | /* Handle user interrupts gracefully during commands */ | |
1363 | interrupted = 0; | |
1364 | signal(SIGINT, cmd_interrupt); | |
1365 | ||
1366 | err = parse_dispatch_command(conn, cmd, &pwd, batchmode); | |
1367 | if (err != 0) | |
1368 | break; | |
1369 | } | |
1370 | xfree(pwd); | |
1371 | xfree(conn); | |
1372 | ||
1373 | #ifdef USE_LIBEDIT | |
1374 | if (el != NULL) | |
1375 | el_end(el); | |
1376 | #endif /* USE_LIBEDIT */ | |
1377 | ||
1378 | /* err == 1 signifies normal "quit" exit */ | |
1379 | return (err >= 0 ? 0 : -1); | |
1380 | } | |
1381 | ||
1382 | static void | |
1383 | connect_to_server(char *path, char **args, int *in, int *out) | |
1384 | { | |
1385 | int c_in, c_out; | |
1386 | ||
1387 | #ifdef USE_PIPES | |
1388 | int pin[2], pout[2]; | |
1389 | ||
1390 | if ((pipe(pin) == -1) || (pipe(pout) == -1)) | |
1391 | fatal("pipe: %s", strerror(errno)); | |
1392 | *in = pin[0]; | |
1393 | *out = pout[1]; | |
1394 | c_in = pout[0]; | |
1395 | c_out = pin[1]; | |
1396 | #else /* USE_PIPES */ | |
1397 | int inout[2]; | |
1398 | ||
1399 | if (socketpair(AF_UNIX, SOCK_STREAM, 0, inout) == -1) | |
1400 | fatal("socketpair: %s", strerror(errno)); | |
1401 | *in = *out = inout[0]; | |
1402 | c_in = c_out = inout[1]; | |
1403 | #endif /* USE_PIPES */ | |
1404 | ||
1405 | if ((sshpid = fork()) == -1) | |
1406 | fatal("fork: %s", strerror(errno)); | |
1407 | else if (sshpid == 0) { | |
1408 | if ((dup2(c_in, STDIN_FILENO) == -1) || | |
1409 | (dup2(c_out, STDOUT_FILENO) == -1)) { | |
1410 | fprintf(stderr, "dup2: %s\n", strerror(errno)); | |
1411 | _exit(1); | |
1412 | } | |
1413 | close(*in); | |
1414 | close(*out); | |
1415 | close(c_in); | |
1416 | close(c_out); | |
1417 | ||
1418 | /* | |
1419 | * The underlying ssh is in the same process group, so we must | |
1420 | * ignore SIGINT if we want to gracefully abort commands, | |
1421 | * otherwise the signal will make it to the ssh process and | |
1422 | * kill it too | |
1423 | */ | |
1424 | signal(SIGINT, SIG_IGN); | |
1425 | execvp(path, args); | |
1426 | fprintf(stderr, "exec: %s: %s\n", path, strerror(errno)); | |
1427 | _exit(1); | |
1428 | } | |
1429 | ||
1430 | signal(SIGTERM, killchild); | |
1431 | signal(SIGINT, killchild); | |
1432 | signal(SIGHUP, killchild); | |
1433 | close(c_in); | |
1434 | close(c_out); | |
1435 | } | |
1436 | ||
1437 | static void | |
1438 | usage(void) | |
1439 | { | |
1440 | extern char *__progname; | |
1441 | ||
1442 | fprintf(stderr, | |
1443 | "usage: %s [-1Cv] [-B buffer_size] [-b batchfile] [-F ssh_config]\n" | |
1444 | " [-o ssh_option] [-P sftp_server_path] [-R num_requests]\n" | |
1445 | " [-S program] [-s subsystem | sftp_server] host\n" | |
1446 | " %s [[user@]host[:file [file]]]\n" | |
1447 | " %s [[user@]host[:dir[/]]]\n" | |
1448 | " %s -b batchfile [user@]host\n", __progname, __progname, __progname, __progname); | |
1449 | exit(1); | |
1450 | } | |
1451 | ||
1452 | int | |
1453 | main(int argc, char **argv) | |
1454 | { | |
1455 | int in, out, ch, err; | |
1456 | char *host, *userhost, *cp, *file2 = NULL; | |
1457 | int debug_level = 0, sshver = 2; | |
1458 | char *file1 = NULL, *sftp_server = NULL; | |
1459 | char *ssh_program = _PATH_SSH_PROGRAM, *sftp_direct = NULL; | |
1460 | LogLevel ll = SYSLOG_LEVEL_INFO; | |
1461 | arglist args; | |
1462 | extern int optind; | |
1463 | extern char *optarg; | |
1464 | ||
1465 | /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */ | |
1466 | sanitise_stdfd(); | |
1467 | ||
1468 | __progname = ssh_get_progname(argv[0]); | |
1469 | memset(&args, '\0', sizeof(args)); | |
1470 | args.list = NULL; | |
1471 | addargs(&args, ssh_program); | |
1472 | addargs(&args, "-oForwardX11 no"); | |
1473 | addargs(&args, "-oForwardAgent no"); | |
1474 | addargs(&args, "-oPermitLocalCommand no"); | |
1475 | addargs(&args, "-oClearAllForwardings yes"); | |
1476 | ||
1477 | ll = SYSLOG_LEVEL_INFO; | |
1478 | infile = stdin; | |
1479 | ||
1480 | while ((ch = getopt(argc, argv, "1hvCo:s:S:b:B:F:P:R:")) != -1) { | |
1481 | switch (ch) { | |
1482 | case 'C': | |
1483 | addargs(&args, "-C"); | |
1484 | break; | |
1485 | case 'v': | |
1486 | if (debug_level < 3) { | |
1487 | addargs(&args, "-v"); | |
1488 | ll = SYSLOG_LEVEL_DEBUG1 + debug_level; | |
1489 | } | |
1490 | debug_level++; | |
1491 | break; | |
1492 | case 'F': | |
1493 | case 'o': | |
1494 | addargs(&args, "-%c%s", ch, optarg); | |
1495 | break; | |
1496 | case '1': | |
1497 | sshver = 1; | |
1498 | if (sftp_server == NULL) | |
1499 | sftp_server = _PATH_SFTP_SERVER; | |
1500 | break; | |
1501 | case 's': | |
1502 | sftp_server = optarg; | |
1503 | break; | |
1504 | case 'S': | |
1505 | ssh_program = optarg; | |
1506 | replacearg(&args, 0, "%s", ssh_program); | |
1507 | break; | |
1508 | case 'b': | |
1509 | if (batchmode) | |
1510 | fatal("Batch file already specified."); | |
1511 | ||
1512 | /* Allow "-" as stdin */ | |
1513 | if (strcmp(optarg, "-") != 0 && | |
1514 | (infile = fopen(optarg, "r")) == NULL) | |
1515 | fatal("%s (%s).", strerror(errno), optarg); | |
1516 | showprogress = 0; | |
1517 | batchmode = 1; | |
1518 | addargs(&args, "-obatchmode yes"); | |
1519 | break; | |
1520 | case 'P': | |
1521 | sftp_direct = optarg; | |
1522 | break; | |
1523 | case 'B': | |
1524 | copy_buffer_len = strtol(optarg, &cp, 10); | |
1525 | if (copy_buffer_len == 0 || *cp != '\0') | |
1526 | fatal("Invalid buffer size \"%s\"", optarg); | |
1527 | break; | |
1528 | case 'R': | |
1529 | num_requests = strtol(optarg, &cp, 10); | |
1530 | if (num_requests == 0 || *cp != '\0') | |
1531 | fatal("Invalid number of requests \"%s\"", | |
1532 | optarg); | |
1533 | break; | |
1534 | case 'h': | |
1535 | default: | |
1536 | usage(); | |
1537 | } | |
1538 | } | |
1539 | ||
1540 | if (!isatty(STDERR_FILENO)) | |
1541 | showprogress = 0; | |
1542 | ||
1543 | log_init(argv[0], ll, SYSLOG_FACILITY_USER, 1); | |
1544 | ||
1545 | if (sftp_direct == NULL) { | |
1546 | if (optind == argc || argc > (optind + 2)) | |
1547 | usage(); | |
1548 | ||
1549 | userhost = xstrdup(argv[optind]); | |
1550 | file2 = argv[optind+1]; | |
1551 | ||
1552 | if ((host = strrchr(userhost, '@')) == NULL) | |
1553 | host = userhost; | |
1554 | else { | |
1555 | *host++ = '\0'; | |
1556 | if (!userhost[0]) { | |
1557 | fprintf(stderr, "Missing username\n"); | |
1558 | usage(); | |
1559 | } | |
1560 | addargs(&args, "-l%s",userhost); | |
1561 | } | |
1562 | ||
1563 | if ((cp = colon(host)) != NULL) { | |
1564 | *cp++ = '\0'; | |
1565 | file1 = cp; | |
1566 | } | |
1567 | ||
1568 | host = cleanhostname(host); | |
1569 | if (!*host) { | |
1570 | fprintf(stderr, "Missing hostname\n"); | |
1571 | usage(); | |
1572 | } | |
1573 | ||
1574 | addargs(&args, "-oProtocol %d", sshver); | |
1575 | ||
1576 | /* no subsystem if the server-spec contains a '/' */ | |
1577 | if (sftp_server == NULL || strchr(sftp_server, '/') == NULL) | |
1578 | addargs(&args, "-s"); | |
1579 | ||
1580 | addargs(&args, "%s", host); | |
1581 | addargs(&args, "%s", (sftp_server != NULL ? | |
1582 | sftp_server : "sftp")); | |
1583 | ||
1584 | if (!batchmode) | |
1585 | fprintf(stderr, "Connecting to %s...\n", host); | |
1586 | connect_to_server(ssh_program, args.list, &in, &out); | |
1587 | } else { | |
1588 | args.list = NULL; | |
1589 | addargs(&args, "sftp-server"); | |
1590 | ||
1591 | if (!batchmode) | |
1592 | fprintf(stderr, "Attaching to %s...\n", sftp_direct); | |
1593 | connect_to_server(sftp_direct, args.list, &in, &out); | |
1594 | } | |
1595 | freeargs(&args); | |
1596 | ||
1597 | err = interactive_loop(in, out, file1, file2); | |
1598 | ||
1599 | #if !defined(USE_PIPES) | |
1600 | shutdown(in, SHUT_RDWR); | |
1601 | shutdown(out, SHUT_RDWR); | |
1602 | #endif | |
1603 | ||
1604 | close(in); | |
1605 | close(out); | |
1606 | if (batchmode) | |
1607 | fclose(infile); | |
1608 | ||
1609 | while (waitpid(sshpid, NULL, 0) == -1) | |
1610 | if (errno != EINTR) | |
1611 | fatal("Couldn't wait for ssh process: %s", | |
1612 | strerror(errno)); | |
1613 | ||
1614 | exit(err == 0 ? 0 : 1); | |
1615 | } |