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3c0ef626 | 1 | /* |
e9a17296 | 2 | * Copyright (c) 2001,2002 Damien Miller. All rights reserved. |
3c0ef626 | 3 | * |
4 | * Redistribution and use in source and binary forms, with or without | |
5 | * modification, are permitted provided that the following conditions | |
6 | * are met: | |
7 | * 1. Redistributions of source code must retain the above copyright | |
8 | * notice, this list of conditions and the following disclaimer. | |
9 | * 2. Redistributions in binary form must reproduce the above copyright | |
10 | * notice, this list of conditions and the following disclaimer in the | |
11 | * documentation and/or other materials provided with the distribution. | |
12 | * | |
13 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |
14 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |
15 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |
16 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |
17 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
18 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
19 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
20 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
21 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
22 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
23 | */ | |
24 | ||
25 | /* XXX: globbed ls */ | |
26 | /* XXX: recursive operations */ | |
27 | ||
28 | #include "includes.h" | |
e9a17296 | 29 | RCSID("$OpenBSD: sftp-int.c,v 1.44 2002/02/13 00:59:23 djm Exp $"); |
3c0ef626 | 30 | |
31 | #include "buffer.h" | |
32 | #include "xmalloc.h" | |
33 | #include "log.h" | |
34 | #include "pathnames.h" | |
35 | ||
36 | #include "sftp.h" | |
37 | #include "sftp-common.h" | |
38 | #include "sftp-glob.h" | |
39 | #include "sftp-client.h" | |
40 | #include "sftp-int.h" | |
41 | ||
42 | /* File to read commands from */ | |
43 | extern FILE *infile; | |
44 | ||
e9a17296 | 45 | /* Size of buffer used when copying files */ |
46 | extern size_t copy_buffer_len; | |
47 | ||
48 | /* Number of concurrent outstanding requests */ | |
49 | extern int num_requests; | |
3c0ef626 | 50 | |
51 | /* Seperators for interactive commands */ | |
52 | #define WHITESPACE " \t\r\n" | |
53 | ||
54 | /* Commands for interactive mode */ | |
55 | #define I_CHDIR 1 | |
56 | #define I_CHGRP 2 | |
57 | #define I_CHMOD 3 | |
58 | #define I_CHOWN 4 | |
59 | #define I_GET 5 | |
60 | #define I_HELP 6 | |
61 | #define I_LCHDIR 7 | |
62 | #define I_LLS 8 | |
63 | #define I_LMKDIR 9 | |
64 | #define I_LPWD 10 | |
65 | #define I_LS 11 | |
66 | #define I_LUMASK 12 | |
67 | #define I_MKDIR 13 | |
68 | #define I_PUT 14 | |
69 | #define I_PWD 15 | |
70 | #define I_QUIT 16 | |
71 | #define I_RENAME 17 | |
72 | #define I_RM 18 | |
73 | #define I_RMDIR 19 | |
74 | #define I_SHELL 20 | |
75 | #define I_SYMLINK 21 | |
76 | #define I_VERSION 22 | |
77 | ||
78 | struct CMD { | |
79 | const char *c; | |
80 | const int n; | |
81 | }; | |
82 | ||
83 | const struct CMD cmds[] = { | |
84 | { "bye", I_QUIT }, | |
85 | { "cd", I_CHDIR }, | |
86 | { "chdir", I_CHDIR }, | |
87 | { "chgrp", I_CHGRP }, | |
88 | { "chmod", I_CHMOD }, | |
89 | { "chown", I_CHOWN }, | |
90 | { "dir", I_LS }, | |
91 | { "exit", I_QUIT }, | |
92 | { "get", I_GET }, | |
93 | { "mget", I_GET }, | |
94 | { "help", I_HELP }, | |
95 | { "lcd", I_LCHDIR }, | |
96 | { "lchdir", I_LCHDIR }, | |
97 | { "lls", I_LLS }, | |
98 | { "lmkdir", I_LMKDIR }, | |
99 | { "ln", I_SYMLINK }, | |
100 | { "lpwd", I_LPWD }, | |
101 | { "ls", I_LS }, | |
102 | { "lumask", I_LUMASK }, | |
103 | { "mkdir", I_MKDIR }, | |
104 | { "put", I_PUT }, | |
105 | { "mput", I_PUT }, | |
106 | { "pwd", I_PWD }, | |
107 | { "quit", I_QUIT }, | |
108 | { "rename", I_RENAME }, | |
109 | { "rm", I_RM }, | |
110 | { "rmdir", I_RMDIR }, | |
111 | { "symlink", I_SYMLINK }, | |
112 | { "version", I_VERSION }, | |
113 | { "!", I_SHELL }, | |
114 | { "?", I_HELP }, | |
115 | { NULL, -1} | |
116 | }; | |
117 | ||
118 | static void | |
119 | help(void) | |
120 | { | |
121 | printf("Available commands:\n"); | |
122 | printf("cd path Change remote directory to 'path'\n"); | |
123 | printf("lcd path Change local directory to 'path'\n"); | |
124 | printf("chgrp grp path Change group of file 'path' to 'grp'\n"); | |
125 | printf("chmod mode path Change permissions of file 'path' to 'mode'\n"); | |
126 | printf("chown own path Change owner of file 'path' to 'own'\n"); | |
127 | printf("help Display this help text\n"); | |
128 | printf("get remote-path [local-path] Download file\n"); | |
129 | printf("lls [ls-options [path]] Display local directory listing\n"); | |
130 | printf("ln oldpath newpath Symlink remote file\n"); | |
131 | printf("lmkdir path Create local directory\n"); | |
132 | printf("lpwd Print local working directory\n"); | |
133 | printf("ls [path] Display remote directory listing\n"); | |
134 | printf("lumask umask Set local umask to 'umask'\n"); | |
135 | printf("mkdir path Create remote directory\n"); | |
136 | printf("put local-path [remote-path] Upload file\n"); | |
137 | printf("pwd Display remote working directory\n"); | |
138 | printf("exit Quit sftp\n"); | |
139 | printf("quit Quit sftp\n"); | |
140 | printf("rename oldpath newpath Rename remote file\n"); | |
141 | printf("rmdir path Remove remote directory\n"); | |
142 | printf("rm path Delete remote file\n"); | |
143 | printf("symlink oldpath newpath Symlink remote file\n"); | |
144 | printf("version Show SFTP version\n"); | |
145 | printf("!command Execute 'command' in local shell\n"); | |
146 | printf("! Escape to local shell\n"); | |
147 | printf("? Synonym for help\n"); | |
148 | } | |
149 | ||
150 | static void | |
151 | local_do_shell(const char *args) | |
152 | { | |
153 | int status; | |
154 | char *shell; | |
155 | pid_t pid; | |
156 | ||
157 | if (!*args) | |
158 | args = NULL; | |
159 | ||
160 | if ((shell = getenv("SHELL")) == NULL) | |
161 | shell = _PATH_BSHELL; | |
162 | ||
163 | if ((pid = fork()) == -1) | |
164 | fatal("Couldn't fork: %s", strerror(errno)); | |
165 | ||
166 | if (pid == 0) { | |
167 | /* XXX: child has pipe fds to ssh subproc open - issue? */ | |
168 | if (args) { | |
169 | debug3("Executing %s -c \"%s\"", shell, args); | |
170 | execl(shell, shell, "-c", args, (char *)NULL); | |
171 | } else { | |
172 | debug3("Executing %s", shell); | |
173 | execl(shell, shell, (char *)NULL); | |
174 | } | |
175 | fprintf(stderr, "Couldn't execute \"%s\": %s\n", shell, | |
176 | strerror(errno)); | |
177 | _exit(1); | |
178 | } | |
179 | if (waitpid(pid, &status, 0) == -1) | |
180 | fatal("Couldn't wait for child: %s", strerror(errno)); | |
181 | if (!WIFEXITED(status)) | |
182 | error("Shell exited abormally"); | |
183 | else if (WEXITSTATUS(status)) | |
184 | error("Shell exited with status %d", WEXITSTATUS(status)); | |
185 | } | |
186 | ||
187 | static void | |
188 | local_do_ls(const char *args) | |
189 | { | |
190 | if (!args || !*args) | |
191 | local_do_shell(_PATH_LS); | |
192 | else { | |
193 | int len = strlen(_PATH_LS " ") + strlen(args) + 1; | |
194 | char *buf = xmalloc(len); | |
195 | ||
196 | /* XXX: quoting - rip quoting code from ftp? */ | |
197 | snprintf(buf, len, _PATH_LS " %s", args); | |
198 | local_do_shell(buf); | |
199 | xfree(buf); | |
200 | } | |
201 | } | |
202 | ||
203 | static char * | |
204 | path_append(char *p1, char *p2) | |
205 | { | |
206 | char *ret; | |
207 | int len = strlen(p1) + strlen(p2) + 2; | |
208 | ||
209 | ret = xmalloc(len); | |
210 | strlcpy(ret, p1, len); | |
e9a17296 | 211 | if (strcmp(p1, "/") != 0) |
3c0ef626 | 212 | strlcat(ret, "/", len); |
213 | strlcat(ret, p2, len); | |
214 | ||
215 | return(ret); | |
216 | } | |
217 | ||
218 | static char * | |
219 | make_absolute(char *p, char *pwd) | |
220 | { | |
221 | char *abs; | |
222 | ||
223 | /* Derelativise */ | |
224 | if (p && p[0] != '/') { | |
225 | abs = path_append(pwd, p); | |
226 | xfree(p); | |
227 | return(abs); | |
228 | } else | |
229 | return(p); | |
230 | } | |
231 | ||
232 | static int | |
233 | infer_path(const char *p, char **ifp) | |
234 | { | |
235 | char *cp; | |
236 | ||
237 | cp = strrchr(p, '/'); | |
238 | if (cp == NULL) { | |
239 | *ifp = xstrdup(p); | |
240 | return(0); | |
241 | } | |
242 | ||
243 | if (!cp[1]) { | |
244 | error("Invalid path"); | |
245 | return(-1); | |
246 | } | |
247 | ||
248 | *ifp = xstrdup(cp + 1); | |
249 | return(0); | |
250 | } | |
251 | ||
252 | static int | |
253 | parse_getput_flags(const char **cpp, int *pflag) | |
254 | { | |
255 | const char *cp = *cpp; | |
256 | ||
257 | /* Check for flags */ | |
258 | if (cp[0] == '-' && cp[1] && strchr(WHITESPACE, cp[2])) { | |
259 | switch (cp[1]) { | |
260 | case 'p': | |
261 | case 'P': | |
262 | *pflag = 1; | |
263 | break; | |
264 | default: | |
265 | error("Invalid flag -%c", cp[1]); | |
266 | return(-1); | |
267 | } | |
268 | cp += 2; | |
269 | *cpp = cp + strspn(cp, WHITESPACE); | |
270 | } | |
271 | ||
272 | return(0); | |
273 | } | |
274 | ||
275 | static int | |
276 | get_pathname(const char **cpp, char **path) | |
277 | { | |
278 | const char *cp = *cpp, *end; | |
279 | char quot; | |
280 | int i; | |
281 | ||
282 | cp += strspn(cp, WHITESPACE); | |
283 | if (!*cp) { | |
284 | *cpp = cp; | |
285 | *path = NULL; | |
286 | return (0); | |
287 | } | |
288 | ||
289 | /* Check for quoted filenames */ | |
290 | if (*cp == '\"' || *cp == '\'') { | |
291 | quot = *cp++; | |
292 | ||
293 | end = strchr(cp, quot); | |
294 | if (end == NULL) { | |
295 | error("Unterminated quote"); | |
296 | goto fail; | |
297 | } | |
298 | if (cp == end) { | |
299 | error("Empty quotes"); | |
300 | goto fail; | |
301 | } | |
302 | *cpp = end + 1 + strspn(end + 1, WHITESPACE); | |
303 | } else { | |
304 | /* Read to end of filename */ | |
305 | end = strpbrk(cp, WHITESPACE); | |
306 | if (end == NULL) | |
307 | end = strchr(cp, '\0'); | |
308 | *cpp = end + strspn(end, WHITESPACE); | |
309 | } | |
310 | ||
311 | i = end - cp; | |
312 | ||
313 | *path = xmalloc(i + 1); | |
314 | memcpy(*path, cp, i); | |
315 | (*path)[i] = '\0'; | |
316 | return(0); | |
317 | ||
318 | fail: | |
319 | *path = NULL; | |
320 | return (-1); | |
321 | } | |
322 | ||
323 | static int | |
324 | is_dir(char *path) | |
325 | { | |
326 | struct stat sb; | |
327 | ||
328 | /* XXX: report errors? */ | |
329 | if (stat(path, &sb) == -1) | |
330 | return(0); | |
331 | ||
332 | return(sb.st_mode & S_IFDIR); | |
333 | } | |
334 | ||
335 | static int | |
e9a17296 | 336 | remote_is_dir(struct sftp_conn *conn, char *path) |
3c0ef626 | 337 | { |
338 | Attrib *a; | |
339 | ||
340 | /* XXX: report errors? */ | |
e9a17296 | 341 | if ((a = do_stat(conn, path, 1)) == NULL) |
3c0ef626 | 342 | return(0); |
343 | if (!(a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)) | |
344 | return(0); | |
345 | return(a->perm & S_IFDIR); | |
346 | } | |
347 | ||
348 | static int | |
e9a17296 | 349 | process_get(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag) |
3c0ef626 | 350 | { |
351 | char *abs_src = NULL; | |
352 | char *abs_dst = NULL; | |
353 | char *tmp; | |
354 | glob_t g; | |
355 | int err = 0; | |
356 | int i; | |
357 | ||
358 | abs_src = xstrdup(src); | |
359 | abs_src = make_absolute(abs_src, pwd); | |
360 | ||
361 | memset(&g, 0, sizeof(g)); | |
362 | debug3("Looking up %s", abs_src); | |
e9a17296 | 363 | if (remote_glob(conn, abs_src, 0, NULL, &g)) { |
3c0ef626 | 364 | error("File \"%s\" not found.", abs_src); |
365 | err = -1; | |
366 | goto out; | |
367 | } | |
368 | ||
369 | /* Only one match, dst may be file, directory or unspecified */ | |
370 | if (g.gl_pathv[0] && g.gl_matchc == 1) { | |
371 | if (dst) { | |
372 | /* If directory specified, append filename */ | |
373 | if (is_dir(dst)) { | |
374 | if (infer_path(g.gl_pathv[0], &tmp)) { | |
375 | err = 1; | |
376 | goto out; | |
377 | } | |
378 | abs_dst = path_append(dst, tmp); | |
379 | xfree(tmp); | |
380 | } else | |
381 | abs_dst = xstrdup(dst); | |
382 | } else if (infer_path(g.gl_pathv[0], &abs_dst)) { | |
383 | err = -1; | |
384 | goto out; | |
385 | } | |
386 | printf("Fetching %s to %s\n", g.gl_pathv[0], abs_dst); | |
e9a17296 | 387 | err = do_download(conn, g.gl_pathv[0], abs_dst, pflag); |
3c0ef626 | 388 | goto out; |
389 | } | |
390 | ||
391 | /* Multiple matches, dst may be directory or unspecified */ | |
392 | if (dst && !is_dir(dst)) { | |
393 | error("Multiple files match, but \"%s\" is not a directory", | |
394 | dst); | |
395 | err = -1; | |
396 | goto out; | |
397 | } | |
398 | ||
e9a17296 | 399 | for (i = 0; g.gl_pathv[i]; i++) { |
3c0ef626 | 400 | if (infer_path(g.gl_pathv[i], &tmp)) { |
401 | err = -1; | |
402 | goto out; | |
403 | } | |
404 | if (dst) { | |
405 | abs_dst = path_append(dst, tmp); | |
406 | xfree(tmp); | |
407 | } else | |
408 | abs_dst = tmp; | |
409 | ||
410 | printf("Fetching %s to %s\n", g.gl_pathv[i], abs_dst); | |
e9a17296 | 411 | if (do_download(conn, g.gl_pathv[i], abs_dst, pflag) == -1) |
3c0ef626 | 412 | err = -1; |
413 | xfree(abs_dst); | |
414 | abs_dst = NULL; | |
415 | } | |
416 | ||
417 | out: | |
418 | xfree(abs_src); | |
419 | if (abs_dst) | |
420 | xfree(abs_dst); | |
421 | globfree(&g); | |
422 | return(err); | |
423 | } | |
424 | ||
425 | static int | |
e9a17296 | 426 | process_put(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag) |
3c0ef626 | 427 | { |
428 | char *tmp_dst = NULL; | |
429 | char *abs_dst = NULL; | |
430 | char *tmp; | |
431 | glob_t g; | |
432 | int err = 0; | |
433 | int i; | |
434 | ||
435 | if (dst) { | |
436 | tmp_dst = xstrdup(dst); | |
437 | tmp_dst = make_absolute(tmp_dst, pwd); | |
438 | } | |
439 | ||
440 | memset(&g, 0, sizeof(g)); | |
441 | debug3("Looking up %s", src); | |
442 | if (glob(src, 0, NULL, &g)) { | |
443 | error("File \"%s\" not found.", src); | |
444 | err = -1; | |
445 | goto out; | |
446 | } | |
447 | ||
448 | /* Only one match, dst may be file, directory or unspecified */ | |
449 | if (g.gl_pathv[0] && g.gl_matchc == 1) { | |
450 | if (tmp_dst) { | |
451 | /* If directory specified, append filename */ | |
e9a17296 | 452 | if (remote_is_dir(conn, tmp_dst)) { |
3c0ef626 | 453 | if (infer_path(g.gl_pathv[0], &tmp)) { |
454 | err = 1; | |
455 | goto out; | |
456 | } | |
457 | abs_dst = path_append(tmp_dst, tmp); | |
458 | xfree(tmp); | |
459 | } else | |
460 | abs_dst = xstrdup(tmp_dst); | |
461 | } else { | |
462 | if (infer_path(g.gl_pathv[0], &abs_dst)) { | |
463 | err = -1; | |
464 | goto out; | |
465 | } | |
466 | abs_dst = make_absolute(abs_dst, pwd); | |
467 | } | |
468 | printf("Uploading %s to %s\n", g.gl_pathv[0], abs_dst); | |
e9a17296 | 469 | err = do_upload(conn, g.gl_pathv[0], abs_dst, pflag); |
3c0ef626 | 470 | goto out; |
471 | } | |
472 | ||
473 | /* Multiple matches, dst may be directory or unspecified */ | |
e9a17296 | 474 | if (tmp_dst && !remote_is_dir(conn, tmp_dst)) { |
3c0ef626 | 475 | error("Multiple files match, but \"%s\" is not a directory", |
476 | tmp_dst); | |
477 | err = -1; | |
478 | goto out; | |
479 | } | |
480 | ||
e9a17296 | 481 | for (i = 0; g.gl_pathv[i]; i++) { |
3c0ef626 | 482 | if (infer_path(g.gl_pathv[i], &tmp)) { |
483 | err = -1; | |
484 | goto out; | |
485 | } | |
486 | if (tmp_dst) { | |
487 | abs_dst = path_append(tmp_dst, tmp); | |
488 | xfree(tmp); | |
489 | } else | |
490 | abs_dst = make_absolute(tmp, pwd); | |
491 | ||
492 | printf("Uploading %s to %s\n", g.gl_pathv[i], abs_dst); | |
e9a17296 | 493 | if (do_upload(conn, g.gl_pathv[i], abs_dst, pflag) == -1) |
3c0ef626 | 494 | err = -1; |
495 | } | |
496 | ||
497 | out: | |
498 | if (abs_dst) | |
499 | xfree(abs_dst); | |
500 | if (tmp_dst) | |
501 | xfree(tmp_dst); | |
502 | return(err); | |
503 | } | |
504 | ||
505 | static int | |
506 | parse_args(const char **cpp, int *pflag, unsigned long *n_arg, | |
507 | char **path1, char **path2) | |
508 | { | |
509 | const char *cmd, *cp = *cpp; | |
510 | char *cp2; | |
511 | int base = 0; | |
512 | long l; | |
513 | int i, cmdnum; | |
514 | ||
515 | /* Skip leading whitespace */ | |
516 | cp = cp + strspn(cp, WHITESPACE); | |
517 | ||
518 | /* Ignore blank lines */ | |
519 | if (!*cp) | |
520 | return(-1); | |
521 | ||
522 | /* Figure out which command we have */ | |
e9a17296 | 523 | for (i = 0; cmds[i].c; i++) { |
3c0ef626 | 524 | int cmdlen = strlen(cmds[i].c); |
525 | ||
526 | /* Check for command followed by whitespace */ | |
527 | if (!strncasecmp(cp, cmds[i].c, cmdlen) && | |
528 | strchr(WHITESPACE, cp[cmdlen])) { | |
529 | cp += cmdlen; | |
530 | cp = cp + strspn(cp, WHITESPACE); | |
531 | break; | |
532 | } | |
533 | } | |
534 | cmdnum = cmds[i].n; | |
535 | cmd = cmds[i].c; | |
536 | ||
537 | /* Special case */ | |
538 | if (*cp == '!') { | |
539 | cp++; | |
540 | cmdnum = I_SHELL; | |
541 | } else if (cmdnum == -1) { | |
542 | error("Invalid command."); | |
543 | return(-1); | |
544 | } | |
545 | ||
546 | /* Get arguments and parse flags */ | |
547 | *pflag = *n_arg = 0; | |
548 | *path1 = *path2 = NULL; | |
549 | switch (cmdnum) { | |
550 | case I_GET: | |
551 | case I_PUT: | |
552 | if (parse_getput_flags(&cp, pflag)) | |
553 | return(-1); | |
554 | /* Get first pathname (mandatory) */ | |
555 | if (get_pathname(&cp, path1)) | |
556 | return(-1); | |
557 | if (*path1 == NULL) { | |
558 | error("You must specify at least one path after a " | |
559 | "%s command.", cmd); | |
560 | return(-1); | |
561 | } | |
562 | /* Try to get second pathname (optional) */ | |
563 | if (get_pathname(&cp, path2)) | |
564 | return(-1); | |
565 | break; | |
566 | case I_RENAME: | |
567 | case I_SYMLINK: | |
568 | if (get_pathname(&cp, path1)) | |
569 | return(-1); | |
570 | if (get_pathname(&cp, path2)) | |
571 | return(-1); | |
572 | if (!*path1 || !*path2) { | |
573 | error("You must specify two paths after a %s " | |
574 | "command.", cmd); | |
575 | return(-1); | |
576 | } | |
577 | break; | |
578 | case I_RM: | |
579 | case I_MKDIR: | |
580 | case I_RMDIR: | |
581 | case I_CHDIR: | |
582 | case I_LCHDIR: | |
583 | case I_LMKDIR: | |
584 | /* Get pathname (mandatory) */ | |
585 | if (get_pathname(&cp, path1)) | |
586 | return(-1); | |
587 | if (*path1 == NULL) { | |
588 | error("You must specify a path after a %s command.", | |
589 | cmd); | |
590 | return(-1); | |
591 | } | |
592 | break; | |
593 | case I_LS: | |
594 | /* Path is optional */ | |
595 | if (get_pathname(&cp, path1)) | |
596 | return(-1); | |
597 | break; | |
598 | case I_LLS: | |
599 | case I_SHELL: | |
600 | /* Uses the rest of the line */ | |
601 | break; | |
602 | case I_LUMASK: | |
603 | base = 8; | |
604 | case I_CHMOD: | |
605 | base = 8; | |
606 | case I_CHOWN: | |
607 | case I_CHGRP: | |
608 | /* Get numeric arg (mandatory) */ | |
609 | l = strtol(cp, &cp2, base); | |
610 | if (cp2 == cp || ((l == LONG_MIN || l == LONG_MAX) && | |
611 | errno == ERANGE) || l < 0) { | |
612 | error("You must supply a numeric argument " | |
613 | "to the %s command.", cmd); | |
614 | return(-1); | |
615 | } | |
616 | cp = cp2; | |
617 | *n_arg = l; | |
618 | if (cmdnum == I_LUMASK && strchr(WHITESPACE, *cp)) | |
619 | break; | |
620 | if (cmdnum == I_LUMASK || !strchr(WHITESPACE, *cp)) { | |
621 | error("You must supply a numeric argument " | |
622 | "to the %s command.", cmd); | |
623 | return(-1); | |
624 | } | |
625 | cp += strspn(cp, WHITESPACE); | |
626 | ||
627 | /* Get pathname (mandatory) */ | |
628 | if (get_pathname(&cp, path1)) | |
629 | return(-1); | |
630 | if (*path1 == NULL) { | |
631 | error("You must specify a path after a %s command.", | |
632 | cmd); | |
633 | return(-1); | |
634 | } | |
635 | break; | |
636 | case I_QUIT: | |
637 | case I_PWD: | |
638 | case I_LPWD: | |
639 | case I_HELP: | |
640 | case I_VERSION: | |
641 | break; | |
642 | default: | |
643 | fatal("Command not implemented"); | |
644 | } | |
645 | ||
646 | *cpp = cp; | |
647 | return(cmdnum); | |
648 | } | |
649 | ||
650 | static int | |
e9a17296 | 651 | parse_dispatch_command(struct sftp_conn *conn, const char *cmd, char **pwd) |
3c0ef626 | 652 | { |
653 | char *path1, *path2, *tmp; | |
654 | int pflag, cmdnum, i; | |
655 | unsigned long n_arg; | |
656 | Attrib a, *aa; | |
657 | char path_buf[MAXPATHLEN]; | |
658 | int err = 0; | |
659 | glob_t g; | |
660 | ||
661 | path1 = path2 = NULL; | |
662 | cmdnum = parse_args(&cmd, &pflag, &n_arg, &path1, &path2); | |
663 | ||
664 | memset(&g, 0, sizeof(g)); | |
665 | ||
666 | /* Perform command */ | |
667 | switch (cmdnum) { | |
668 | case -1: | |
669 | break; | |
670 | case I_GET: | |
e9a17296 | 671 | err = process_get(conn, path1, path2, *pwd, pflag); |
3c0ef626 | 672 | break; |
673 | case I_PUT: | |
e9a17296 | 674 | err = process_put(conn, path1, path2, *pwd, pflag); |
3c0ef626 | 675 | break; |
676 | case I_RENAME: | |
677 | path1 = make_absolute(path1, *pwd); | |
678 | path2 = make_absolute(path2, *pwd); | |
e9a17296 | 679 | err = do_rename(conn, path1, path2); |
3c0ef626 | 680 | break; |
681 | case I_SYMLINK: | |
e9a17296 | 682 | path2 = make_absolute(path2, *pwd); |
683 | err = do_symlink(conn, path1, path2); | |
3c0ef626 | 684 | break; |
685 | case I_RM: | |
686 | path1 = make_absolute(path1, *pwd); | |
e9a17296 | 687 | remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g); |
688 | for (i = 0; g.gl_pathv[i]; i++) { | |
3c0ef626 | 689 | printf("Removing %s\n", g.gl_pathv[i]); |
e9a17296 | 690 | if (do_rm(conn, g.gl_pathv[i]) == -1) |
3c0ef626 | 691 | err = -1; |
692 | } | |
693 | break; | |
694 | case I_MKDIR: | |
695 | path1 = make_absolute(path1, *pwd); | |
696 | attrib_clear(&a); | |
697 | a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS; | |
698 | a.perm = 0777; | |
e9a17296 | 699 | err = do_mkdir(conn, path1, &a); |
3c0ef626 | 700 | break; |
701 | case I_RMDIR: | |
702 | path1 = make_absolute(path1, *pwd); | |
e9a17296 | 703 | err = do_rmdir(conn, path1); |
3c0ef626 | 704 | break; |
705 | case I_CHDIR: | |
706 | path1 = make_absolute(path1, *pwd); | |
e9a17296 | 707 | if ((tmp = do_realpath(conn, path1)) == NULL) { |
3c0ef626 | 708 | err = 1; |
709 | break; | |
710 | } | |
e9a17296 | 711 | if ((aa = do_stat(conn, tmp, 0)) == NULL) { |
3c0ef626 | 712 | xfree(tmp); |
713 | err = 1; | |
714 | break; | |
715 | } | |
716 | if (!(aa->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)) { | |
717 | error("Can't change directory: Can't check target"); | |
718 | xfree(tmp); | |
719 | err = 1; | |
720 | break; | |
721 | } | |
722 | if (!S_ISDIR(aa->perm)) { | |
723 | error("Can't change directory: \"%s\" is not " | |
724 | "a directory", tmp); | |
725 | xfree(tmp); | |
726 | err = 1; | |
727 | break; | |
728 | } | |
729 | xfree(*pwd); | |
730 | *pwd = tmp; | |
731 | break; | |
732 | case I_LS: | |
733 | if (!path1) { | |
e9a17296 | 734 | do_ls(conn, *pwd); |
3c0ef626 | 735 | break; |
736 | } | |
737 | path1 = make_absolute(path1, *pwd); | |
e9a17296 | 738 | if ((tmp = do_realpath(conn, path1)) == NULL) |
3c0ef626 | 739 | break; |
740 | xfree(path1); | |
741 | path1 = tmp; | |
e9a17296 | 742 | if ((aa = do_stat(conn, path1, 0)) == NULL) |
3c0ef626 | 743 | break; |
744 | if ((aa->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) && | |
745 | !S_ISDIR(aa->perm)) { | |
746 | error("Can't ls: \"%s\" is not a directory", path1); | |
747 | break; | |
748 | } | |
e9a17296 | 749 | do_ls(conn, path1); |
3c0ef626 | 750 | break; |
751 | case I_LCHDIR: | |
752 | if (chdir(path1) == -1) { | |
753 | error("Couldn't change local directory to " | |
754 | "\"%s\": %s", path1, strerror(errno)); | |
755 | err = 1; | |
756 | } | |
757 | break; | |
758 | case I_LMKDIR: | |
759 | if (mkdir(path1, 0777) == -1) { | |
760 | error("Couldn't create local directory " | |
761 | "\"%s\": %s", path1, strerror(errno)); | |
762 | err = 1; | |
763 | } | |
764 | break; | |
765 | case I_LLS: | |
766 | local_do_ls(cmd); | |
767 | break; | |
768 | case I_SHELL: | |
769 | local_do_shell(cmd); | |
770 | break; | |
771 | case I_LUMASK: | |
772 | umask(n_arg); | |
773 | printf("Local umask: %03lo\n", n_arg); | |
774 | break; | |
775 | case I_CHMOD: | |
776 | path1 = make_absolute(path1, *pwd); | |
777 | attrib_clear(&a); | |
778 | a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS; | |
779 | a.perm = n_arg; | |
e9a17296 | 780 | remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g); |
781 | for (i = 0; g.gl_pathv[i]; i++) { | |
3c0ef626 | 782 | printf("Changing mode on %s\n", g.gl_pathv[i]); |
e9a17296 | 783 | do_setstat(conn, g.gl_pathv[i], &a); |
3c0ef626 | 784 | } |
785 | break; | |
786 | case I_CHOWN: | |
787 | path1 = make_absolute(path1, *pwd); | |
e9a17296 | 788 | remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g); |
789 | for (i = 0; g.gl_pathv[i]; i++) { | |
790 | if (!(aa = do_stat(conn, g.gl_pathv[i], 0))) | |
3c0ef626 | 791 | continue; |
792 | if (!(aa->flags & SSH2_FILEXFER_ATTR_UIDGID)) { | |
793 | error("Can't get current ownership of " | |
794 | "remote file \"%s\"", g.gl_pathv[i]); | |
795 | continue; | |
796 | } | |
797 | printf("Changing owner on %s\n", g.gl_pathv[i]); | |
798 | aa->flags &= SSH2_FILEXFER_ATTR_UIDGID; | |
799 | aa->uid = n_arg; | |
e9a17296 | 800 | do_setstat(conn, g.gl_pathv[i], aa); |
3c0ef626 | 801 | } |
802 | break; | |
803 | case I_CHGRP: | |
804 | path1 = make_absolute(path1, *pwd); | |
e9a17296 | 805 | remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g); |
806 | for (i = 0; g.gl_pathv[i]; i++) { | |
807 | if (!(aa = do_stat(conn, g.gl_pathv[i], 0))) | |
3c0ef626 | 808 | continue; |
809 | if (!(aa->flags & SSH2_FILEXFER_ATTR_UIDGID)) { | |
810 | error("Can't get current ownership of " | |
811 | "remote file \"%s\"", g.gl_pathv[i]); | |
812 | continue; | |
813 | } | |
814 | printf("Changing group on %s\n", g.gl_pathv[i]); | |
815 | aa->flags &= SSH2_FILEXFER_ATTR_UIDGID; | |
816 | aa->gid = n_arg; | |
e9a17296 | 817 | do_setstat(conn, g.gl_pathv[i], aa); |
3c0ef626 | 818 | } |
819 | break; | |
820 | case I_PWD: | |
821 | printf("Remote working directory: %s\n", *pwd); | |
822 | break; | |
823 | case I_LPWD: | |
824 | if (!getcwd(path_buf, sizeof(path_buf))) | |
825 | error("Couldn't get local cwd: %s", | |
826 | strerror(errno)); | |
827 | else | |
828 | printf("Local working directory: %s\n", | |
829 | path_buf); | |
830 | break; | |
831 | case I_QUIT: | |
832 | return(-1); | |
833 | case I_HELP: | |
834 | help(); | |
835 | break; | |
836 | case I_VERSION: | |
e9a17296 | 837 | printf("SFTP protocol version %d\n", sftp_proto_version(conn)); |
3c0ef626 | 838 | break; |
839 | default: | |
840 | fatal("%d is not implemented", cmdnum); | |
841 | } | |
842 | ||
843 | if (g.gl_pathc) | |
844 | globfree(&g); | |
845 | if (path1) | |
846 | xfree(path1); | |
847 | if (path2) | |
848 | xfree(path2); | |
849 | ||
850 | /* If an error occurs in batch mode we should abort. */ | |
851 | if (infile != stdin && err > 0) | |
852 | return -1; | |
853 | ||
854 | return(0); | |
855 | } | |
856 | ||
857 | void | |
858 | interactive_loop(int fd_in, int fd_out, char *file1, char *file2) | |
859 | { | |
860 | char *pwd; | |
861 | char *dir = NULL; | |
862 | char cmd[2048]; | |
e9a17296 | 863 | struct sftp_conn *conn; |
3c0ef626 | 864 | |
e9a17296 | 865 | conn = do_init(fd_in, fd_out, copy_buffer_len, num_requests); |
866 | if (conn == NULL) | |
3c0ef626 | 867 | fatal("Couldn't initialise connection to server"); |
868 | ||
e9a17296 | 869 | pwd = do_realpath(conn, "."); |
3c0ef626 | 870 | if (pwd == NULL) |
871 | fatal("Need cwd"); | |
872 | ||
873 | if (file1 != NULL) { | |
874 | dir = xstrdup(file1); | |
875 | dir = make_absolute(dir, pwd); | |
876 | ||
e9a17296 | 877 | if (remote_is_dir(conn, dir) && file2 == NULL) { |
3c0ef626 | 878 | printf("Changing to: %s\n", dir); |
879 | snprintf(cmd, sizeof cmd, "cd \"%s\"", dir); | |
e9a17296 | 880 | parse_dispatch_command(conn, cmd, &pwd); |
3c0ef626 | 881 | } else { |
882 | if (file2 == NULL) | |
883 | snprintf(cmd, sizeof cmd, "get %s", dir); | |
884 | else | |
885 | snprintf(cmd, sizeof cmd, "get %s %s", dir, | |
886 | file2); | |
887 | ||
e9a17296 | 888 | parse_dispatch_command(conn, cmd, &pwd); |
3c0ef626 | 889 | return; |
890 | } | |
891 | } | |
892 | #if HAVE_SETVBUF | |
893 | setvbuf(stdout, NULL, _IOLBF, 0); | |
894 | setvbuf(infile, NULL, _IOLBF, 0); | |
895 | #else | |
896 | setlinebuf(stdout); | |
897 | setlinebuf(infile); | |
898 | #endif | |
899 | ||
e9a17296 | 900 | for (;;) { |
3c0ef626 | 901 | char *cp; |
902 | ||
903 | printf("sftp> "); | |
904 | ||
905 | /* XXX: use libedit */ | |
906 | if (fgets(cmd, sizeof(cmd), infile) == NULL) { | |
907 | printf("\n"); | |
908 | break; | |
909 | } else if (infile != stdin) /* Bluff typing */ | |
910 | printf("%s", cmd); | |
911 | ||
912 | cp = strrchr(cmd, '\n'); | |
913 | if (cp) | |
914 | *cp = '\0'; | |
915 | ||
e9a17296 | 916 | if (parse_dispatch_command(conn, cmd, &pwd)) |
3c0ef626 | 917 | break; |
918 | } | |
919 | xfree(pwd); | |
920 | } |