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e74dc197 | 1 | /* $OpenBSD: sftp.c,v 1.99 2008/01/20 00:38:30 djm Exp $ */ |
3c0ef626 | 2 | /* |
8af0406b | 3 | * Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org> |
3c0ef626 | 4 | * |
8af0406b | 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. | |
3c0ef626 | 8 | * |
8af0406b | 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. | |
3c0ef626 | 16 | */ |
17 | ||
18 | #include "includes.h" | |
19 | ||
30460aeb | 20 | #include <sys/types.h> |
21 | #include <sys/ioctl.h> | |
22 | #ifdef HAVE_SYS_STAT_H | |
23 | # include <sys/stat.h> | |
24 | #endif | |
25 | #include <sys/param.h> | |
26 | #include <sys/socket.h> | |
27 | #include <sys/wait.h> | |
28 | ||
e74dc197 | 29 | #include <ctype.h> |
30460aeb | 30 | #include <errno.h> |
3c0ef626 | 31 | |
30460aeb | 32 | #ifdef HAVE_PATHS_H |
33 | # include <paths.h> | |
34 | #endif | |
8af0406b | 35 | #ifdef USE_LIBEDIT |
36 | #include <histedit.h> | |
37 | #else | |
38 | typedef void EditLine; | |
39 | #endif | |
30460aeb | 40 | #include <signal.h> |
41 | #include <stdlib.h> | |
42 | #include <stdio.h> | |
43 | #include <string.h> | |
44 | #include <unistd.h> | |
45 | #include <stdarg.h> | |
3c0ef626 | 46 | |
3c0ef626 | 47 | #include "xmalloc.h" |
48 | #include "log.h" | |
49 | #include "pathnames.h" | |
50 | #include "misc.h" | |
51 | ||
52 | #include "sftp.h" | |
30460aeb | 53 | #include "buffer.h" |
3c0ef626 | 54 | #include "sftp-common.h" |
55 | #include "sftp-client.h" | |
3c0ef626 | 56 | |
8af0406b | 57 | /* File to read commands from */ |
58 | FILE* infile; | |
59 | ||
60 | /* Are we in batchfile mode? */ | |
61 | int batchmode = 0; | |
62 | ||
63 | /* Size of buffer used when copying files */ | |
64 | size_t copy_buffer_len = 32768; | |
65 | ||
66 | /* Number of concurrent outstanding requests */ | |
67 | size_t num_requests = 16; | |
68 | ||
69 | /* PID of ssh transport process */ | |
70 | static pid_t sshpid = -1; | |
71 | ||
72 | /* This is set to 0 if the progressmeter is not desired. */ | |
73 | int showprogress = 1; | |
74 | ||
75 | /* SIGINT received during command processing */ | |
76 | volatile sig_atomic_t interrupted = 0; | |
77 | ||
78 | /* I wish qsort() took a separate ctx for the comparison function...*/ | |
79 | int sort_flag; | |
80 | ||
81 | int remote_glob(struct sftp_conn *, const char *, int, | |
82 | int (*)(const char *, int), glob_t *); /* proto for sftp-glob.c */ | |
83 | ||
3c0ef626 | 84 | extern char *__progname; |
8af0406b | 85 | |
86 | /* Separators for interactive commands */ | |
87 | #define WHITESPACE " \t\r\n" | |
88 | ||
89 | /* ls flags */ | |
90 | #define LS_LONG_VIEW 0x01 /* Full view ala ls -l */ | |
91 | #define LS_SHORT_VIEW 0x02 /* Single row view ala ls -1 */ | |
92 | #define LS_NUMERIC_VIEW 0x04 /* Long view with numeric uid/gid */ | |
93 | #define LS_NAME_SORT 0x08 /* Sort by name (default) */ | |
94 | #define LS_TIME_SORT 0x10 /* Sort by mtime */ | |
95 | #define LS_SIZE_SORT 0x20 /* Sort by file size */ | |
96 | #define LS_REVERSE_SORT 0x40 /* Reverse sort order */ | |
97 | #define LS_SHOW_ALL 0x80 /* Don't skip filenames starting with '.' */ | |
98 | ||
99 | #define VIEW_FLAGS (LS_LONG_VIEW|LS_SHORT_VIEW|LS_NUMERIC_VIEW) | |
100 | #define SORT_FLAGS (LS_NAME_SORT|LS_TIME_SORT|LS_SIZE_SORT) | |
101 | ||
102 | /* Commands for interactive mode */ | |
103 | #define I_CHDIR 1 | |
104 | #define I_CHGRP 2 | |
105 | #define I_CHMOD 3 | |
106 | #define I_CHOWN 4 | |
107 | #define I_GET 5 | |
108 | #define I_HELP 6 | |
109 | #define I_LCHDIR 7 | |
110 | #define I_LLS 8 | |
111 | #define I_LMKDIR 9 | |
112 | #define I_LPWD 10 | |
113 | #define I_LS 11 | |
114 | #define I_LUMASK 12 | |
115 | #define I_MKDIR 13 | |
116 | #define I_PUT 14 | |
117 | #define I_PWD 15 | |
118 | #define I_QUIT 16 | |
119 | #define I_RENAME 17 | |
120 | #define I_RM 18 | |
121 | #define I_RMDIR 19 | |
122 | #define I_SHELL 20 | |
123 | #define I_SYMLINK 21 | |
124 | #define I_VERSION 22 | |
125 | #define I_PROGRESS 23 | |
126 | ||
127 | struct CMD { | |
128 | const char *c; | |
129 | const int n; | |
130 | }; | |
131 | ||
132 | static const struct CMD cmds[] = { | |
133 | { "bye", I_QUIT }, | |
134 | { "cd", I_CHDIR }, | |
135 | { "chdir", I_CHDIR }, | |
136 | { "chgrp", I_CHGRP }, | |
137 | { "chmod", I_CHMOD }, | |
138 | { "chown", I_CHOWN }, | |
139 | { "dir", I_LS }, | |
140 | { "exit", I_QUIT }, | |
141 | { "get", I_GET }, | |
142 | { "mget", I_GET }, | |
143 | { "help", I_HELP }, | |
144 | { "lcd", I_LCHDIR }, | |
145 | { "lchdir", I_LCHDIR }, | |
146 | { "lls", I_LLS }, | |
147 | { "lmkdir", I_LMKDIR }, | |
148 | { "ln", I_SYMLINK }, | |
149 | { "lpwd", I_LPWD }, | |
150 | { "ls", I_LS }, | |
151 | { "lumask", I_LUMASK }, | |
152 | { "mkdir", I_MKDIR }, | |
153 | { "progress", I_PROGRESS }, | |
154 | { "put", I_PUT }, | |
155 | { "mput", I_PUT }, | |
156 | { "pwd", I_PWD }, | |
157 | { "quit", I_QUIT }, | |
158 | { "rename", I_RENAME }, | |
159 | { "rm", I_RM }, | |
160 | { "rmdir", I_RMDIR }, | |
161 | { "symlink", I_SYMLINK }, | |
162 | { "version", I_VERSION }, | |
163 | { "!", I_SHELL }, | |
164 | { "?", I_HELP }, | |
165 | { NULL, -1} | |
166 | }; | |
167 | ||
168 | int interactive_loop(int fd_in, int fd_out, char *file1, char *file2); | |
169 | ||
0b90ac93 | 170 | /* ARGSUSED */ |
8af0406b | 171 | static void |
172 | killchild(int signo) | |
173 | { | |
174 | if (sshpid > 1) { | |
175 | kill(sshpid, SIGTERM); | |
176 | waitpid(sshpid, NULL, 0); | |
177 | } | |
178 | ||
179 | _exit(1); | |
180 | } | |
181 | ||
0b90ac93 | 182 | /* ARGSUSED */ |
8af0406b | 183 | static void |
184 | cmd_interrupt(int signo) | |
185 | { | |
186 | const char msg[] = "\rInterrupt \n"; | |
187 | int olderrno = errno; | |
188 | ||
189 | write(STDERR_FILENO, msg, sizeof(msg) - 1); | |
190 | interrupted = 1; | |
191 | errno = olderrno; | |
192 | } | |
193 | ||
194 | static void | |
195 | help(void) | |
196 | { | |
197 | printf("Available commands:\n"); | |
198 | printf("cd path Change remote directory to 'path'\n"); | |
199 | printf("lcd path Change local directory to 'path'\n"); | |
200 | printf("chgrp grp path Change group of file 'path' to 'grp'\n"); | |
201 | printf("chmod mode path Change permissions of file 'path' to 'mode'\n"); | |
202 | printf("chown own path Change owner of file 'path' to 'own'\n"); | |
203 | printf("help Display this help text\n"); | |
204 | printf("get remote-path [local-path] Download file\n"); | |
205 | printf("lls [ls-options [path]] Display local directory listing\n"); | |
206 | printf("ln oldpath newpath Symlink remote file\n"); | |
207 | printf("lmkdir path Create local directory\n"); | |
208 | printf("lpwd Print local working directory\n"); | |
209 | printf("ls [path] Display remote directory listing\n"); | |
210 | printf("lumask umask Set local umask to 'umask'\n"); | |
211 | printf("mkdir path Create remote directory\n"); | |
212 | printf("progress Toggle display of progress meter\n"); | |
213 | printf("put local-path [remote-path] Upload file\n"); | |
214 | printf("pwd Display remote working directory\n"); | |
215 | printf("exit Quit sftp\n"); | |
216 | printf("quit Quit sftp\n"); | |
217 | printf("rename oldpath newpath Rename remote file\n"); | |
218 | printf("rmdir path Remove remote directory\n"); | |
219 | printf("rm path Delete remote file\n"); | |
220 | printf("symlink oldpath newpath Symlink remote file\n"); | |
221 | printf("version Show SFTP version\n"); | |
222 | printf("!command Execute 'command' in local shell\n"); | |
223 | printf("! Escape to local shell\n"); | |
224 | printf("? Synonym for help\n"); | |
225 | } | |
226 | ||
227 | static void | |
228 | local_do_shell(const char *args) | |
229 | { | |
230 | int status; | |
231 | char *shell; | |
232 | pid_t pid; | |
233 | ||
234 | if (!*args) | |
235 | args = NULL; | |
236 | ||
237 | if ((shell = getenv("SHELL")) == NULL) | |
238 | shell = _PATH_BSHELL; | |
239 | ||
240 | if ((pid = fork()) == -1) | |
241 | fatal("Couldn't fork: %s", strerror(errno)); | |
242 | ||
243 | if (pid == 0) { | |
244 | /* XXX: child has pipe fds to ssh subproc open - issue? */ | |
245 | if (args) { | |
246 | debug3("Executing %s -c \"%s\"", shell, args); | |
247 | execl(shell, shell, "-c", args, (char *)NULL); | |
248 | } else { | |
249 | debug3("Executing %s", shell); | |
250 | execl(shell, shell, (char *)NULL); | |
251 | } | |
252 | fprintf(stderr, "Couldn't execute \"%s\": %s\n", shell, | |
253 | strerror(errno)); | |
254 | _exit(1); | |
255 | } | |
256 | while (waitpid(pid, &status, 0) == -1) | |
257 | if (errno != EINTR) | |
258 | fatal("Couldn't wait for child: %s", strerror(errno)); | |
259 | if (!WIFEXITED(status)) | |
30460aeb | 260 | error("Shell exited abnormally"); |
8af0406b | 261 | else if (WEXITSTATUS(status)) |
262 | error("Shell exited with status %d", WEXITSTATUS(status)); | |
263 | } | |
264 | ||
265 | static void | |
266 | local_do_ls(const char *args) | |
267 | { | |
268 | if (!args || !*args) | |
269 | local_do_shell(_PATH_LS); | |
270 | else { | |
271 | int len = strlen(_PATH_LS " ") + strlen(args) + 1; | |
272 | char *buf = xmalloc(len); | |
273 | ||
274 | /* XXX: quoting - rip quoting code from ftp? */ | |
275 | snprintf(buf, len, _PATH_LS " %s", args); | |
276 | local_do_shell(buf); | |
277 | xfree(buf); | |
278 | } | |
279 | } | |
280 | ||
281 | /* Strip one path (usually the pwd) from the start of another */ | |
282 | static char * | |
283 | path_strip(char *path, char *strip) | |
284 | { | |
285 | size_t len; | |
286 | ||
287 | if (strip == NULL) | |
288 | return (xstrdup(path)); | |
289 | ||
290 | len = strlen(strip); | |
291 | if (strncmp(path, strip, len) == 0) { | |
292 | if (strip[len - 1] != '/' && path[len] == '/') | |
293 | len++; | |
294 | return (xstrdup(path + len)); | |
295 | } | |
296 | ||
297 | return (xstrdup(path)); | |
298 | } | |
299 | ||
300 | static char * | |
301 | path_append(char *p1, char *p2) | |
302 | { | |
303 | char *ret; | |
0b90ac93 | 304 | size_t len = strlen(p1) + strlen(p2) + 2; |
8af0406b | 305 | |
306 | ret = xmalloc(len); | |
307 | strlcpy(ret, p1, len); | |
0b90ac93 | 308 | if (p1[0] != '\0' && p1[strlen(p1) - 1] != '/') |
8af0406b | 309 | strlcat(ret, "/", len); |
310 | strlcat(ret, p2, len); | |
311 | ||
312 | return(ret); | |
313 | } | |
314 | ||
315 | static char * | |
316 | make_absolute(char *p, char *pwd) | |
317 | { | |
318 | char *abs_str; | |
319 | ||
320 | /* Derelativise */ | |
321 | if (p && p[0] != '/') { | |
322 | abs_str = path_append(pwd, p); | |
323 | xfree(p); | |
324 | return(abs_str); | |
325 | } else | |
326 | return(p); | |
327 | } | |
328 | ||
329 | static int | |
330 | infer_path(const char *p, char **ifp) | |
331 | { | |
332 | char *cp; | |
333 | ||
334 | cp = strrchr(p, '/'); | |
335 | if (cp == NULL) { | |
336 | *ifp = xstrdup(p); | |
337 | return(0); | |
338 | } | |
339 | ||
340 | if (!cp[1]) { | |
341 | error("Invalid path"); | |
342 | return(-1); | |
343 | } | |
344 | ||
345 | *ifp = xstrdup(cp + 1); | |
346 | return(0); | |
347 | } | |
348 | ||
349 | static int | |
e74dc197 | 350 | parse_getput_flags(const char *cmd, char **argv, int argc, int *pflag) |
8af0406b | 351 | { |
e74dc197 | 352 | extern int optind, optreset, opterr; |
353 | int ch; | |
8af0406b | 354 | |
e74dc197 | 355 | optind = optreset = 1; |
356 | opterr = 0; | |
357 | ||
358 | *pflag = 0; | |
359 | while ((ch = getopt(argc, argv, "Pp")) != -1) { | |
360 | switch (ch) { | |
8af0406b | 361 | case 'p': |
362 | case 'P': | |
363 | *pflag = 1; | |
364 | break; | |
365 | default: | |
e74dc197 | 366 | error("%s: Invalid flag -%c", cmd, ch); |
367 | return -1; | |
8af0406b | 368 | } |
8af0406b | 369 | } |
370 | ||
e74dc197 | 371 | return optind; |
8af0406b | 372 | } |
373 | ||
374 | static int | |
e74dc197 | 375 | parse_ls_flags(char **argv, int argc, int *lflag) |
8af0406b | 376 | { |
e74dc197 | 377 | extern int optind, optreset, opterr; |
378 | int ch; | |
8af0406b | 379 | |
e74dc197 | 380 | optind = optreset = 1; |
381 | opterr = 0; | |
8af0406b | 382 | |
e74dc197 | 383 | *lflag = LS_NAME_SORT; |
384 | while ((ch = getopt(argc, argv, "1Saflnrt")) != -1) { | |
385 | switch (ch) { | |
386 | case '1': | |
387 | *lflag &= ~VIEW_FLAGS; | |
388 | *lflag |= LS_SHORT_VIEW; | |
389 | break; | |
390 | case 'S': | |
391 | *lflag &= ~SORT_FLAGS; | |
392 | *lflag |= LS_SIZE_SORT; | |
393 | break; | |
394 | case 'a': | |
395 | *lflag |= LS_SHOW_ALL; | |
396 | break; | |
397 | case 'f': | |
398 | *lflag &= ~SORT_FLAGS; | |
399 | break; | |
400 | case 'l': | |
401 | *lflag &= ~VIEW_FLAGS; | |
402 | *lflag |= LS_LONG_VIEW; | |
403 | break; | |
404 | case 'n': | |
405 | *lflag &= ~VIEW_FLAGS; | |
406 | *lflag |= LS_NUMERIC_VIEW|LS_LONG_VIEW; | |
407 | break; | |
408 | case 'r': | |
409 | *lflag |= LS_REVERSE_SORT; | |
410 | break; | |
411 | case 't': | |
412 | *lflag &= ~SORT_FLAGS; | |
413 | *lflag |= LS_TIME_SORT; | |
414 | break; | |
415 | default: | |
416 | error("ls: Invalid flag -%c", ch); | |
417 | return -1; | |
8af0406b | 418 | } |
8af0406b | 419 | } |
8af0406b | 420 | |
e74dc197 | 421 | return optind; |
8af0406b | 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 | ||
30460aeb | 433 | return(S_ISDIR(sb.st_mode)); |
8af0406b | 434 | } |
435 | ||
8af0406b | 436 | static int |
437 | remote_is_dir(struct sftp_conn *conn, char *path) | |
438 | { | |
439 | Attrib *a; | |
440 | ||
441 | /* XXX: report errors? */ | |
442 | if ((a = do_stat(conn, path, 1)) == NULL) | |
443 | return(0); | |
444 | if (!(a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)) | |
445 | return(0); | |
30460aeb | 446 | return(S_ISDIR(a->perm)); |
8af0406b | 447 | } |
448 | ||
449 | static int | |
450 | process_get(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag) | |
451 | { | |
452 | char *abs_src = NULL; | |
453 | char *abs_dst = NULL; | |
454 | char *tmp; | |
455 | glob_t g; | |
456 | int err = 0; | |
457 | int i; | |
458 | ||
459 | abs_src = xstrdup(src); | |
460 | abs_src = make_absolute(abs_src, pwd); | |
461 | ||
462 | memset(&g, 0, sizeof(g)); | |
463 | debug3("Looking up %s", abs_src); | |
464 | if (remote_glob(conn, abs_src, 0, NULL, &g)) { | |
465 | error("File \"%s\" not found.", abs_src); | |
466 | err = -1; | |
467 | goto out; | |
468 | } | |
469 | ||
470 | /* If multiple matches, dst must be a directory or unspecified */ | |
471 | if (g.gl_matchc > 1 && dst && !is_dir(dst)) { | |
472 | error("Multiple files match, but \"%s\" is not a directory", | |
473 | dst); | |
474 | err = -1; | |
475 | goto out; | |
476 | } | |
477 | ||
478 | for (i = 0; g.gl_pathv[i] && !interrupted; i++) { | |
479 | if (infer_path(g.gl_pathv[i], &tmp)) { | |
480 | err = -1; | |
481 | goto out; | |
482 | } | |
483 | ||
484 | if (g.gl_matchc == 1 && dst) { | |
485 | /* If directory specified, append filename */ | |
30460aeb | 486 | xfree(tmp); |
8af0406b | 487 | if (is_dir(dst)) { |
488 | if (infer_path(g.gl_pathv[0], &tmp)) { | |
489 | err = 1; | |
490 | goto out; | |
491 | } | |
492 | abs_dst = path_append(dst, tmp); | |
493 | xfree(tmp); | |
494 | } else | |
495 | abs_dst = xstrdup(dst); | |
496 | } else if (dst) { | |
497 | abs_dst = path_append(dst, tmp); | |
498 | xfree(tmp); | |
499 | } else | |
500 | abs_dst = tmp; | |
501 | ||
502 | printf("Fetching %s to %s\n", g.gl_pathv[i], abs_dst); | |
503 | if (do_download(conn, g.gl_pathv[i], abs_dst, pflag) == -1) | |
504 | err = -1; | |
505 | xfree(abs_dst); | |
506 | abs_dst = NULL; | |
507 | } | |
508 | ||
509 | out: | |
510 | xfree(abs_src); | |
8af0406b | 511 | globfree(&g); |
512 | return(err); | |
513 | } | |
514 | ||
515 | static int | |
516 | process_put(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag) | |
517 | { | |
518 | char *tmp_dst = NULL; | |
519 | char *abs_dst = NULL; | |
520 | char *tmp; | |
521 | glob_t g; | |
522 | int err = 0; | |
523 | int i; | |
e74dc197 | 524 | struct stat sb; |
8af0406b | 525 | |
526 | if (dst) { | |
527 | tmp_dst = xstrdup(dst); | |
528 | tmp_dst = make_absolute(tmp_dst, pwd); | |
529 | } | |
530 | ||
531 | memset(&g, 0, sizeof(g)); | |
532 | debug3("Looking up %s", src); | |
e74dc197 | 533 | if (glob(src, GLOB_NOCHECK, NULL, &g)) { |
8af0406b | 534 | error("File \"%s\" not found.", src); |
535 | err = -1; | |
536 | goto out; | |
537 | } | |
538 | ||
539 | /* If multiple matches, dst may be directory or unspecified */ | |
540 | if (g.gl_matchc > 1 && tmp_dst && !remote_is_dir(conn, tmp_dst)) { | |
541 | error("Multiple files match, but \"%s\" is not a directory", | |
542 | tmp_dst); | |
543 | err = -1; | |
544 | goto out; | |
545 | } | |
546 | ||
547 | for (i = 0; g.gl_pathv[i] && !interrupted; i++) { | |
e74dc197 | 548 | if (stat(g.gl_pathv[i], &sb) == -1) { |
549 | err = -1; | |
550 | error("stat %s: %s", g.gl_pathv[i], strerror(errno)); | |
551 | continue; | |
552 | } | |
553 | ||
554 | if (!S_ISREG(sb.st_mode)) { | |
8af0406b | 555 | error("skipping non-regular file %s", |
556 | g.gl_pathv[i]); | |
557 | continue; | |
558 | } | |
559 | if (infer_path(g.gl_pathv[i], &tmp)) { | |
560 | err = -1; | |
561 | goto out; | |
562 | } | |
563 | ||
564 | if (g.gl_matchc == 1 && tmp_dst) { | |
565 | /* If directory specified, append filename */ | |
566 | if (remote_is_dir(conn, tmp_dst)) { | |
567 | if (infer_path(g.gl_pathv[0], &tmp)) { | |
568 | err = 1; | |
569 | goto out; | |
570 | } | |
571 | abs_dst = path_append(tmp_dst, tmp); | |
572 | xfree(tmp); | |
573 | } else | |
574 | abs_dst = xstrdup(tmp_dst); | |
575 | ||
576 | } else if (tmp_dst) { | |
577 | abs_dst = path_append(tmp_dst, tmp); | |
578 | xfree(tmp); | |
579 | } else | |
580 | abs_dst = make_absolute(tmp, pwd); | |
581 | ||
582 | printf("Uploading %s to %s\n", g.gl_pathv[i], abs_dst); | |
583 | if (do_upload(conn, g.gl_pathv[i], abs_dst, pflag) == -1) | |
584 | err = -1; | |
585 | } | |
586 | ||
587 | out: | |
588 | if (abs_dst) | |
589 | xfree(abs_dst); | |
590 | if (tmp_dst) | |
591 | xfree(tmp_dst); | |
592 | globfree(&g); | |
593 | return(err); | |
594 | } | |
595 | ||
596 | static int | |
597 | sdirent_comp(const void *aa, const void *bb) | |
598 | { | |
599 | SFTP_DIRENT *a = *(SFTP_DIRENT **)aa; | |
600 | SFTP_DIRENT *b = *(SFTP_DIRENT **)bb; | |
601 | int rmul = sort_flag & LS_REVERSE_SORT ? -1 : 1; | |
602 | ||
603 | #define NCMP(a,b) (a == b ? 0 : (a < b ? 1 : -1)) | |
604 | if (sort_flag & LS_NAME_SORT) | |
605 | return (rmul * strcmp(a->filename, b->filename)); | |
606 | else if (sort_flag & LS_TIME_SORT) | |
607 | return (rmul * NCMP(a->a.mtime, b->a.mtime)); | |
608 | else if (sort_flag & LS_SIZE_SORT) | |
609 | return (rmul * NCMP(a->a.size, b->a.size)); | |
610 | ||
611 | fatal("Unknown ls sort type"); | |
612 | } | |
613 | ||
614 | /* sftp ls.1 replacement for directories */ | |
615 | static int | |
616 | do_ls_dir(struct sftp_conn *conn, char *path, char *strip_path, int lflag) | |
617 | { | |
618 | int n; | |
619 | u_int c = 1, colspace = 0, columns = 1; | |
620 | SFTP_DIRENT **d; | |
621 | ||
622 | if ((n = do_readdir(conn, path, &d)) != 0) | |
623 | return (n); | |
624 | ||
625 | if (!(lflag & LS_SHORT_VIEW)) { | |
626 | u_int m = 0, width = 80; | |
627 | struct winsize ws; | |
628 | char *tmp; | |
629 | ||
630 | /* Count entries for sort and find longest filename */ | |
631 | for (n = 0; d[n] != NULL; n++) { | |
632 | if (d[n]->filename[0] != '.' || (lflag & LS_SHOW_ALL)) | |
633 | m = MAX(m, strlen(d[n]->filename)); | |
634 | } | |
635 | ||
636 | /* Add any subpath that also needs to be counted */ | |
637 | tmp = path_strip(path, strip_path); | |
638 | m += strlen(tmp); | |
639 | xfree(tmp); | |
640 | ||
641 | if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1) | |
642 | width = ws.ws_col; | |
643 | ||
644 | columns = width / (m + 2); | |
645 | columns = MAX(columns, 1); | |
646 | colspace = width / columns; | |
647 | colspace = MIN(colspace, width); | |
648 | } | |
649 | ||
650 | if (lflag & SORT_FLAGS) { | |
651 | for (n = 0; d[n] != NULL; n++) | |
652 | ; /* count entries */ | |
653 | sort_flag = lflag & (SORT_FLAGS|LS_REVERSE_SORT); | |
654 | qsort(d, n, sizeof(*d), sdirent_comp); | |
655 | } | |
656 | ||
657 | for (n = 0; d[n] != NULL && !interrupted; n++) { | |
658 | char *tmp, *fname; | |
659 | ||
660 | if (d[n]->filename[0] == '.' && !(lflag & LS_SHOW_ALL)) | |
661 | continue; | |
662 | ||
663 | tmp = path_append(path, d[n]->filename); | |
664 | fname = path_strip(tmp, strip_path); | |
665 | xfree(tmp); | |
666 | ||
667 | if (lflag & LS_LONG_VIEW) { | |
668 | if (lflag & LS_NUMERIC_VIEW) { | |
669 | char *lname; | |
670 | struct stat sb; | |
671 | ||
672 | memset(&sb, 0, sizeof(sb)); | |
673 | attrib_to_stat(&d[n]->a, &sb); | |
674 | lname = ls_file(fname, &sb, 1); | |
675 | printf("%s\n", lname); | |
676 | xfree(lname); | |
677 | } else | |
678 | printf("%s\n", d[n]->longname); | |
679 | } else { | |
680 | printf("%-*s", colspace, fname); | |
681 | if (c >= columns) { | |
682 | printf("\n"); | |
683 | c = 1; | |
684 | } else | |
685 | c++; | |
686 | } | |
687 | ||
688 | xfree(fname); | |
689 | } | |
690 | ||
691 | if (!(lflag & LS_LONG_VIEW) && (c != 1)) | |
692 | printf("\n"); | |
693 | ||
694 | free_sftp_dirents(d); | |
695 | return (0); | |
696 | } | |
697 | ||
698 | /* sftp ls.1 replacement which handles path globs */ | |
699 | static int | |
700 | do_globbed_ls(struct sftp_conn *conn, char *path, char *strip_path, | |
701 | int lflag) | |
702 | { | |
703 | glob_t g; | |
704 | u_int i, c = 1, colspace = 0, columns = 1; | |
705 | Attrib *a = NULL; | |
706 | ||
707 | memset(&g, 0, sizeof(g)); | |
708 | ||
709 | if (remote_glob(conn, path, GLOB_MARK|GLOB_NOCHECK|GLOB_BRACE, | |
710 | NULL, &g) || (g.gl_pathc && !g.gl_matchc)) { | |
711 | if (g.gl_pathc) | |
712 | globfree(&g); | |
713 | error("Can't ls: \"%s\" not found", path); | |
714 | return (-1); | |
715 | } | |
716 | ||
717 | if (interrupted) | |
718 | goto out; | |
719 | ||
720 | /* | |
721 | * If the glob returns a single match and it is a directory, | |
722 | * then just list its contents. | |
723 | */ | |
724 | if (g.gl_matchc == 1) { | |
725 | if ((a = do_lstat(conn, g.gl_pathv[0], 1)) == NULL) { | |
726 | globfree(&g); | |
727 | return (-1); | |
728 | } | |
729 | if ((a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) && | |
730 | S_ISDIR(a->perm)) { | |
731 | int err; | |
732 | ||
733 | err = do_ls_dir(conn, g.gl_pathv[0], strip_path, lflag); | |
734 | globfree(&g); | |
735 | return (err); | |
736 | } | |
737 | } | |
738 | ||
739 | if (!(lflag & LS_SHORT_VIEW)) { | |
740 | u_int m = 0, width = 80; | |
741 | struct winsize ws; | |
742 | ||
743 | /* Count entries for sort and find longest filename */ | |
744 | for (i = 0; g.gl_pathv[i]; i++) | |
745 | m = MAX(m, strlen(g.gl_pathv[i])); | |
746 | ||
747 | if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1) | |
748 | width = ws.ws_col; | |
749 | ||
750 | columns = width / (m + 2); | |
751 | columns = MAX(columns, 1); | |
752 | colspace = width / columns; | |
753 | } | |
754 | ||
755 | for (i = 0; g.gl_pathv[i] && !interrupted; i++, a = NULL) { | |
756 | char *fname; | |
757 | ||
758 | fname = path_strip(g.gl_pathv[i], strip_path); | |
759 | ||
760 | if (lflag & LS_LONG_VIEW) { | |
761 | char *lname; | |
762 | struct stat sb; | |
763 | ||
764 | /* | |
765 | * XXX: this is slow - 1 roundtrip per path | |
766 | * A solution to this is to fork glob() and | |
767 | * build a sftp specific version which keeps the | |
768 | * attribs (which currently get thrown away) | |
769 | * that the server returns as well as the filenames. | |
770 | */ | |
771 | memset(&sb, 0, sizeof(sb)); | |
772 | if (a == NULL) | |
773 | a = do_lstat(conn, g.gl_pathv[i], 1); | |
774 | if (a != NULL) | |
775 | attrib_to_stat(a, &sb); | |
776 | lname = ls_file(fname, &sb, 1); | |
777 | printf("%s\n", lname); | |
778 | xfree(lname); | |
779 | } else { | |
780 | printf("%-*s", colspace, fname); | |
781 | if (c >= columns) { | |
782 | printf("\n"); | |
783 | c = 1; | |
784 | } else | |
785 | c++; | |
786 | } | |
787 | xfree(fname); | |
788 | } | |
789 | ||
790 | if (!(lflag & LS_LONG_VIEW) && (c != 1)) | |
791 | printf("\n"); | |
792 | ||
793 | out: | |
794 | if (g.gl_pathc) | |
795 | globfree(&g); | |
796 | ||
797 | return (0); | |
798 | } | |
799 | ||
e74dc197 | 800 | /* |
801 | * Undo escaping of glob sequences in place. Used to undo extra escaping | |
802 | * applied in makeargv() when the string is destined for a function that | |
803 | * does not glob it. | |
804 | */ | |
805 | static void | |
806 | undo_glob_escape(char *s) | |
807 | { | |
808 | size_t i, j; | |
809 | ||
810 | for (i = j = 0;;) { | |
811 | if (s[i] == '\0') { | |
812 | s[j] = '\0'; | |
813 | return; | |
814 | } | |
815 | if (s[i] != '\\') { | |
816 | s[j++] = s[i++]; | |
817 | continue; | |
818 | } | |
819 | /* s[i] == '\\' */ | |
820 | ++i; | |
821 | switch (s[i]) { | |
822 | case '?': | |
823 | case '[': | |
824 | case '*': | |
825 | case '\\': | |
826 | s[j++] = s[i++]; | |
827 | break; | |
828 | case '\0': | |
829 | s[j++] = '\\'; | |
830 | s[j] = '\0'; | |
831 | return; | |
832 | default: | |
833 | s[j++] = '\\'; | |
834 | s[j++] = s[i++]; | |
835 | break; | |
836 | } | |
837 | } | |
838 | } | |
839 | ||
840 | /* | |
841 | * Split a string into an argument vector using sh(1)-style quoting, | |
842 | * comment and escaping rules, but with some tweaks to handle glob(3) | |
843 | * wildcards. | |
844 | * Returns NULL on error or a NULL-terminated array of arguments. | |
845 | */ | |
846 | #define MAXARGS 128 | |
847 | #define MAXARGLEN 8192 | |
848 | static char ** | |
849 | makeargv(const char *arg, int *argcp) | |
850 | { | |
851 | int argc, quot; | |
852 | size_t i, j; | |
853 | static char argvs[MAXARGLEN]; | |
854 | static char *argv[MAXARGS + 1]; | |
855 | enum { MA_START, MA_SQUOTE, MA_DQUOTE, MA_UNQUOTED } state, q; | |
856 | ||
857 | *argcp = argc = 0; | |
858 | if (strlen(arg) > sizeof(argvs) - 1) { | |
859 | args_too_longs: | |
860 | error("string too long"); | |
861 | return NULL; | |
862 | } | |
863 | state = MA_START; | |
864 | i = j = 0; | |
865 | for (;;) { | |
866 | if (isspace(arg[i])) { | |
867 | if (state == MA_UNQUOTED) { | |
868 | /* Terminate current argument */ | |
869 | argvs[j++] = '\0'; | |
870 | argc++; | |
871 | state = MA_START; | |
872 | } else if (state != MA_START) | |
873 | argvs[j++] = arg[i]; | |
874 | } else if (arg[i] == '"' || arg[i] == '\'') { | |
875 | q = arg[i] == '"' ? MA_DQUOTE : MA_SQUOTE; | |
876 | if (state == MA_START) { | |
877 | argv[argc] = argvs + j; | |
878 | state = q; | |
879 | } else if (state == MA_UNQUOTED) | |
880 | state = q; | |
881 | else if (state == q) | |
882 | state = MA_UNQUOTED; | |
883 | else | |
884 | argvs[j++] = arg[i]; | |
885 | } else if (arg[i] == '\\') { | |
886 | if (state == MA_SQUOTE || state == MA_DQUOTE) { | |
887 | quot = state == MA_SQUOTE ? '\'' : '"'; | |
888 | /* Unescape quote we are in */ | |
889 | /* XXX support \n and friends? */ | |
890 | if (arg[i + 1] == quot) { | |
891 | i++; | |
892 | argvs[j++] = arg[i]; | |
893 | } else if (arg[i + 1] == '?' || | |
894 | arg[i + 1] == '[' || arg[i + 1] == '*') { | |
895 | /* | |
896 | * Special case for sftp: append | |
897 | * double-escaped glob sequence - | |
898 | * glob will undo one level of | |
899 | * escaping. NB. string can grow here. | |
900 | */ | |
901 | if (j >= sizeof(argvs) - 5) | |
902 | goto args_too_longs; | |
903 | argvs[j++] = '\\'; | |
904 | argvs[j++] = arg[i++]; | |
905 | argvs[j++] = '\\'; | |
906 | argvs[j++] = arg[i]; | |
907 | } else { | |
908 | argvs[j++] = arg[i++]; | |
909 | argvs[j++] = arg[i]; | |
910 | } | |
911 | } else { | |
912 | if (state == MA_START) { | |
913 | argv[argc] = argvs + j; | |
914 | state = MA_UNQUOTED; | |
915 | } | |
916 | if (arg[i + 1] == '?' || arg[i + 1] == '[' || | |
917 | arg[i + 1] == '*' || arg[i + 1] == '\\') { | |
918 | /* | |
919 | * Special case for sftp: append | |
920 | * escaped glob sequence - | |
921 | * glob will undo one level of | |
922 | * escaping. | |
923 | */ | |
924 | argvs[j++] = arg[i++]; | |
925 | argvs[j++] = arg[i]; | |
926 | } else { | |
927 | /* Unescape everything */ | |
928 | /* XXX support \n and friends? */ | |
929 | i++; | |
930 | argvs[j++] = arg[i]; | |
931 | } | |
932 | } | |
933 | } else if (arg[i] == '#') { | |
934 | if (state == MA_SQUOTE || state == MA_DQUOTE) | |
935 | argvs[j++] = arg[i]; | |
936 | else | |
937 | goto string_done; | |
938 | } else if (arg[i] == '\0') { | |
939 | if (state == MA_SQUOTE || state == MA_DQUOTE) { | |
940 | error("Unterminated quoted argument"); | |
941 | return NULL; | |
942 | } | |
943 | string_done: | |
944 | if (state == MA_UNQUOTED) { | |
945 | argvs[j++] = '\0'; | |
946 | argc++; | |
947 | } | |
948 | break; | |
949 | } else { | |
950 | if (state == MA_START) { | |
951 | argv[argc] = argvs + j; | |
952 | state = MA_UNQUOTED; | |
953 | } | |
954 | if ((state == MA_SQUOTE || state == MA_DQUOTE) && | |
955 | (arg[i] == '?' || arg[i] == '[' || arg[i] == '*')) { | |
956 | /* | |
957 | * Special case for sftp: escape quoted | |
958 | * glob(3) wildcards. NB. string can grow | |
959 | * here. | |
960 | */ | |
961 | if (j >= sizeof(argvs) - 3) | |
962 | goto args_too_longs; | |
963 | argvs[j++] = '\\'; | |
964 | argvs[j++] = arg[i]; | |
965 | } else | |
966 | argvs[j++] = arg[i]; | |
967 | } | |
968 | i++; | |
969 | } | |
970 | *argcp = argc; | |
971 | return argv; | |
972 | } | |
973 | ||
8af0406b | 974 | static int |
975 | parse_args(const char **cpp, int *pflag, int *lflag, int *iflag, | |
976 | unsigned long *n_arg, char **path1, char **path2) | |
977 | { | |
978 | const char *cmd, *cp = *cpp; | |
e74dc197 | 979 | char *cp2, **argv; |
8af0406b | 980 | int base = 0; |
981 | long l; | |
e74dc197 | 982 | int i, cmdnum, optidx, argc; |
8af0406b | 983 | |
984 | /* Skip leading whitespace */ | |
985 | cp = cp + strspn(cp, WHITESPACE); | |
986 | ||
987 | /* Ignore blank lines and lines which begin with comment '#' char */ | |
988 | if (*cp == '\0' || *cp == '#') | |
989 | return (0); | |
990 | ||
991 | /* Check for leading '-' (disable error processing) */ | |
992 | *iflag = 0; | |
993 | if (*cp == '-') { | |
994 | *iflag = 1; | |
995 | cp++; | |
996 | } | |
997 | ||
e74dc197 | 998 | if ((argv = makeargv(cp, &argc)) == NULL) |
999 | return -1; | |
1000 | ||
8af0406b | 1001 | /* Figure out which command we have */ |
e74dc197 | 1002 | for (i = 0; cmds[i].c != NULL; i++) { |
1003 | if (strcasecmp(cmds[i].c, argv[0]) == 0) | |
8af0406b | 1004 | break; |
8af0406b | 1005 | } |
1006 | cmdnum = cmds[i].n; | |
1007 | cmd = cmds[i].c; | |
1008 | ||
1009 | /* Special case */ | |
1010 | if (*cp == '!') { | |
1011 | cp++; | |
1012 | cmdnum = I_SHELL; | |
1013 | } else if (cmdnum == -1) { | |
1014 | error("Invalid command."); | |
e74dc197 | 1015 | return -1; |
8af0406b | 1016 | } |
1017 | ||
1018 | /* Get arguments and parse flags */ | |
1019 | *lflag = *pflag = *n_arg = 0; | |
1020 | *path1 = *path2 = NULL; | |
e74dc197 | 1021 | optidx = 1; |
8af0406b | 1022 | switch (cmdnum) { |
1023 | case I_GET: | |
1024 | case I_PUT: | |
e74dc197 | 1025 | if ((optidx = parse_getput_flags(cmd, argv, argc, pflag)) == -1) |
1026 | return -1; | |
8af0406b | 1027 | /* Get first pathname (mandatory) */ |
e74dc197 | 1028 | if (argc - optidx < 1) { |
8af0406b | 1029 | error("You must specify at least one path after a " |
1030 | "%s command.", cmd); | |
e74dc197 | 1031 | return -1; |
1032 | } | |
1033 | *path1 = xstrdup(argv[optidx]); | |
1034 | /* Get second pathname (optional) */ | |
1035 | if (argc - optidx > 1) { | |
1036 | *path2 = xstrdup(argv[optidx + 1]); | |
1037 | /* Destination is not globbed */ | |
1038 | undo_glob_escape(*path2); | |
8af0406b | 1039 | } |
8af0406b | 1040 | break; |
1041 | case I_RENAME: | |
1042 | case I_SYMLINK: | |
e74dc197 | 1043 | if (argc - optidx < 2) { |
8af0406b | 1044 | error("You must specify two paths after a %s " |
1045 | "command.", cmd); | |
e74dc197 | 1046 | return -1; |
8af0406b | 1047 | } |
e74dc197 | 1048 | *path1 = xstrdup(argv[optidx]); |
1049 | *path2 = xstrdup(argv[optidx + 1]); | |
1050 | /* Paths are not globbed */ | |
1051 | undo_glob_escape(*path1); | |
1052 | undo_glob_escape(*path2); | |
8af0406b | 1053 | break; |
1054 | case I_RM: | |
1055 | case I_MKDIR: | |
1056 | case I_RMDIR: | |
1057 | case I_CHDIR: | |
1058 | case I_LCHDIR: | |
1059 | case I_LMKDIR: | |
1060 | /* Get pathname (mandatory) */ | |
e74dc197 | 1061 | if (argc - optidx < 1) { |
8af0406b | 1062 | error("You must specify a path after a %s command.", |
1063 | cmd); | |
e74dc197 | 1064 | return -1; |
8af0406b | 1065 | } |
e74dc197 | 1066 | *path1 = xstrdup(argv[optidx]); |
1067 | /* Only "rm" globs */ | |
1068 | if (cmdnum != I_RM) | |
1069 | undo_glob_escape(*path1); | |
8af0406b | 1070 | break; |
1071 | case I_LS: | |
e74dc197 | 1072 | if ((optidx = parse_ls_flags(argv, argc, lflag)) == -1) |
8af0406b | 1073 | return(-1); |
1074 | /* Path is optional */ | |
e74dc197 | 1075 | if (argc - optidx > 0) |
1076 | *path1 = xstrdup(argv[optidx]); | |
8af0406b | 1077 | break; |
1078 | case I_LLS: | |
e74dc197 | 1079 | /* Skip ls command and following whitespace */ |
1080 | cp = cp + strlen(cmd) + strspn(cp, WHITESPACE); | |
8af0406b | 1081 | case I_SHELL: |
1082 | /* Uses the rest of the line */ | |
1083 | break; | |
1084 | case I_LUMASK: | |
8af0406b | 1085 | case I_CHMOD: |
1086 | base = 8; | |
1087 | case I_CHOWN: | |
1088 | case I_CHGRP: | |
1089 | /* Get numeric arg (mandatory) */ | |
e74dc197 | 1090 | if (argc - optidx < 1) |
1091 | goto need_num_arg; | |
240debe0 | 1092 | errno = 0; |
e74dc197 | 1093 | l = strtol(argv[optidx], &cp2, base); |
1094 | if (cp2 == argv[optidx] || *cp2 != '\0' || | |
1095 | ((l == LONG_MIN || l == LONG_MAX) && errno == ERANGE) || | |
1096 | l < 0) { | |
1097 | need_num_arg: | |
8af0406b | 1098 | error("You must supply a numeric argument " |
1099 | "to the %s command.", cmd); | |
e74dc197 | 1100 | return -1; |
8af0406b | 1101 | } |
8af0406b | 1102 | *n_arg = l; |
e74dc197 | 1103 | if (cmdnum == I_LUMASK) |
8af0406b | 1104 | break; |
8af0406b | 1105 | /* Get pathname (mandatory) */ |
e74dc197 | 1106 | if (argc - optidx < 2) { |
8af0406b | 1107 | error("You must specify a path after a %s command.", |
1108 | cmd); | |
e74dc197 | 1109 | return -1; |
8af0406b | 1110 | } |
e74dc197 | 1111 | *path1 = xstrdup(argv[optidx + 1]); |
8af0406b | 1112 | break; |
1113 | case I_QUIT: | |
1114 | case I_PWD: | |
1115 | case I_LPWD: | |
1116 | case I_HELP: | |
1117 | case I_VERSION: | |
1118 | case I_PROGRESS: | |
1119 | break; | |
1120 | default: | |
1121 | fatal("Command not implemented"); | |
1122 | } | |
1123 | ||
1124 | *cpp = cp; | |
1125 | return(cmdnum); | |
1126 | } | |
1127 | ||
1128 | static int | |
1129 | parse_dispatch_command(struct sftp_conn *conn, const char *cmd, char **pwd, | |
1130 | int err_abort) | |
1131 | { | |
1132 | char *path1, *path2, *tmp; | |
1133 | int pflag, lflag, iflag, cmdnum, i; | |
1134 | unsigned long n_arg; | |
1135 | Attrib a, *aa; | |
1136 | char path_buf[MAXPATHLEN]; | |
1137 | int err = 0; | |
1138 | glob_t g; | |
1139 | ||
1140 | path1 = path2 = NULL; | |
1141 | cmdnum = parse_args(&cmd, &pflag, &lflag, &iflag, &n_arg, | |
1142 | &path1, &path2); | |
1143 | ||
1144 | if (iflag != 0) | |
1145 | err_abort = 0; | |
1146 | ||
1147 | memset(&g, 0, sizeof(g)); | |
1148 | ||
1149 | /* Perform command */ | |
1150 | switch (cmdnum) { | |
1151 | case 0: | |
1152 | /* Blank line */ | |
1153 | break; | |
1154 | case -1: | |
1155 | /* Unrecognized command */ | |
1156 | err = -1; | |
1157 | break; | |
1158 | case I_GET: | |
1159 | err = process_get(conn, path1, path2, *pwd, pflag); | |
1160 | break; | |
1161 | case I_PUT: | |
1162 | err = process_put(conn, path1, path2, *pwd, pflag); | |
1163 | break; | |
1164 | case I_RENAME: | |
1165 | path1 = make_absolute(path1, *pwd); | |
1166 | path2 = make_absolute(path2, *pwd); | |
1167 | err = do_rename(conn, path1, path2); | |
1168 | break; | |
1169 | case I_SYMLINK: | |
1170 | path2 = make_absolute(path2, *pwd); | |
1171 | err = do_symlink(conn, path1, path2); | |
1172 | break; | |
1173 | case I_RM: | |
1174 | path1 = make_absolute(path1, *pwd); | |
1175 | remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g); | |
1176 | for (i = 0; g.gl_pathv[i] && !interrupted; i++) { | |
1177 | printf("Removing %s\n", g.gl_pathv[i]); | |
1178 | err = do_rm(conn, g.gl_pathv[i]); | |
1179 | if (err != 0 && err_abort) | |
1180 | break; | |
1181 | } | |
1182 | break; | |
1183 | case I_MKDIR: | |
1184 | path1 = make_absolute(path1, *pwd); | |
1185 | attrib_clear(&a); | |
1186 | a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS; | |
1187 | a.perm = 0777; | |
1188 | err = do_mkdir(conn, path1, &a); | |
1189 | break; | |
1190 | case I_RMDIR: | |
1191 | path1 = make_absolute(path1, *pwd); | |
1192 | err = do_rmdir(conn, path1); | |
1193 | break; | |
1194 | case I_CHDIR: | |
1195 | path1 = make_absolute(path1, *pwd); | |
1196 | if ((tmp = do_realpath(conn, path1)) == NULL) { | |
1197 | err = 1; | |
1198 | break; | |
1199 | } | |
1200 | if ((aa = do_stat(conn, tmp, 0)) == NULL) { | |
1201 | xfree(tmp); | |
1202 | err = 1; | |
1203 | break; | |
1204 | } | |
1205 | if (!(aa->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)) { | |
1206 | error("Can't change directory: Can't check target"); | |
1207 | xfree(tmp); | |
1208 | err = 1; | |
1209 | break; | |
1210 | } | |
1211 | if (!S_ISDIR(aa->perm)) { | |
1212 | error("Can't change directory: \"%s\" is not " | |
1213 | "a directory", tmp); | |
1214 | xfree(tmp); | |
1215 | err = 1; | |
1216 | break; | |
1217 | } | |
1218 | xfree(*pwd); | |
1219 | *pwd = tmp; | |
1220 | break; | |
1221 | case I_LS: | |
1222 | if (!path1) { | |
1223 | do_globbed_ls(conn, *pwd, *pwd, lflag); | |
1224 | break; | |
1225 | } | |
1226 | ||
1227 | /* Strip pwd off beginning of non-absolute paths */ | |
1228 | tmp = NULL; | |
1229 | if (*path1 != '/') | |
1230 | tmp = *pwd; | |
1231 | ||
1232 | path1 = make_absolute(path1, *pwd); | |
1233 | err = do_globbed_ls(conn, path1, tmp, lflag); | |
1234 | break; | |
1235 | case I_LCHDIR: | |
1236 | if (chdir(path1) == -1) { | |
1237 | error("Couldn't change local directory to " | |
1238 | "\"%s\": %s", path1, strerror(errno)); | |
1239 | err = 1; | |
1240 | } | |
1241 | break; | |
1242 | case I_LMKDIR: | |
1243 | if (mkdir(path1, 0777) == -1) { | |
1244 | error("Couldn't create local directory " | |
1245 | "\"%s\": %s", path1, strerror(errno)); | |
1246 | err = 1; | |
1247 | } | |
1248 | break; | |
1249 | case I_LLS: | |
1250 | local_do_ls(cmd); | |
1251 | break; | |
1252 | case I_SHELL: | |
1253 | local_do_shell(cmd); | |
1254 | break; | |
1255 | case I_LUMASK: | |
1256 | umask(n_arg); | |
1257 | printf("Local umask: %03lo\n", n_arg); | |
1258 | break; | |
1259 | case I_CHMOD: | |
1260 | path1 = make_absolute(path1, *pwd); | |
1261 | attrib_clear(&a); | |
1262 | a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS; | |
1263 | a.perm = n_arg; | |
1264 | remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g); | |
1265 | for (i = 0; g.gl_pathv[i] && !interrupted; i++) { | |
1266 | printf("Changing mode on %s\n", g.gl_pathv[i]); | |
1267 | err = do_setstat(conn, g.gl_pathv[i], &a); | |
1268 | if (err != 0 && err_abort) | |
1269 | break; | |
1270 | } | |
1271 | break; | |
1272 | case I_CHOWN: | |
1273 | case I_CHGRP: | |
1274 | path1 = make_absolute(path1, *pwd); | |
1275 | remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g); | |
1276 | for (i = 0; g.gl_pathv[i] && !interrupted; i++) { | |
1277 | if (!(aa = do_stat(conn, g.gl_pathv[i], 0))) { | |
1278 | if (err != 0 && err_abort) | |
1279 | break; | |
1280 | else | |
1281 | continue; | |
1282 | } | |
1283 | if (!(aa->flags & SSH2_FILEXFER_ATTR_UIDGID)) { | |
1284 | error("Can't get current ownership of " | |
1285 | "remote file \"%s\"", g.gl_pathv[i]); | |
1286 | if (err != 0 && err_abort) | |
1287 | break; | |
1288 | else | |
1289 | continue; | |
1290 | } | |
1291 | aa->flags &= SSH2_FILEXFER_ATTR_UIDGID; | |
1292 | if (cmdnum == I_CHOWN) { | |
1293 | printf("Changing owner on %s\n", g.gl_pathv[i]); | |
1294 | aa->uid = n_arg; | |
1295 | } else { | |
1296 | printf("Changing group on %s\n", g.gl_pathv[i]); | |
1297 | aa->gid = n_arg; | |
1298 | } | |
1299 | err = do_setstat(conn, g.gl_pathv[i], aa); | |
1300 | if (err != 0 && err_abort) | |
1301 | break; | |
1302 | } | |
1303 | break; | |
1304 | case I_PWD: | |
1305 | printf("Remote working directory: %s\n", *pwd); | |
1306 | break; | |
1307 | case I_LPWD: | |
1308 | if (!getcwd(path_buf, sizeof(path_buf))) { | |
1309 | error("Couldn't get local cwd: %s", strerror(errno)); | |
1310 | err = -1; | |
1311 | break; | |
1312 | } | |
1313 | printf("Local working directory: %s\n", path_buf); | |
1314 | break; | |
1315 | case I_QUIT: | |
1316 | /* Processed below */ | |
1317 | break; | |
1318 | case I_HELP: | |
1319 | help(); | |
1320 | break; | |
1321 | case I_VERSION: | |
1322 | printf("SFTP protocol version %u\n", sftp_proto_version(conn)); | |
1323 | break; | |
1324 | case I_PROGRESS: | |
1325 | showprogress = !showprogress; | |
1326 | if (showprogress) | |
1327 | printf("Progress meter enabled\n"); | |
1328 | else | |
1329 | printf("Progress meter disabled\n"); | |
1330 | break; | |
1331 | default: | |
1332 | fatal("%d is not implemented", cmdnum); | |
1333 | } | |
1334 | ||
1335 | if (g.gl_pathc) | |
1336 | globfree(&g); | |
1337 | if (path1) | |
1338 | xfree(path1); | |
1339 | if (path2) | |
1340 | xfree(path2); | |
1341 | ||
1342 | /* If an unignored error occurs in batch mode we should abort. */ | |
1343 | if (err_abort && err != 0) | |
1344 | return (-1); | |
1345 | else if (cmdnum == I_QUIT) | |
1346 | return (1); | |
1347 | ||
1348 | return (0); | |
1349 | } | |
1350 | ||
1351 | #ifdef USE_LIBEDIT | |
1352 | static char * | |
1353 | prompt(EditLine *el) | |
1354 | { | |
1355 | return ("sftp> "); | |
1356 | } | |
1357 | #endif | |
1358 | ||
1359 | int | |
1360 | interactive_loop(int fd_in, int fd_out, char *file1, char *file2) | |
1361 | { | |
1362 | char *pwd; | |
1363 | char *dir = NULL; | |
1364 | char cmd[2048]; | |
1365 | struct sftp_conn *conn; | |
1366 | int err, interactive; | |
1367 | EditLine *el = NULL; | |
1368 | #ifdef USE_LIBEDIT | |
1369 | History *hl = NULL; | |
1370 | HistEvent hev; | |
1371 | extern char *__progname; | |
1372 | ||
1373 | if (!batchmode && isatty(STDIN_FILENO)) { | |
1374 | if ((el = el_init(__progname, stdin, stdout, stderr)) == NULL) | |
1375 | fatal("Couldn't initialise editline"); | |
1376 | if ((hl = history_init()) == NULL) | |
1377 | fatal("Couldn't initialise editline history"); | |
1378 | history(hl, &hev, H_SETSIZE, 100); | |
1379 | el_set(el, EL_HIST, history, hl); | |
1380 | ||
1381 | el_set(el, EL_PROMPT, prompt); | |
1382 | el_set(el, EL_EDITOR, "emacs"); | |
1383 | el_set(el, EL_TERMINAL, NULL); | |
1384 | el_set(el, EL_SIGNAL, 1); | |
1385 | el_source(el, NULL); | |
1386 | } | |
1387 | #endif /* USE_LIBEDIT */ | |
1388 | ||
1389 | conn = do_init(fd_in, fd_out, copy_buffer_len, num_requests); | |
1390 | if (conn == NULL) | |
1391 | fatal("Couldn't initialise connection to server"); | |
1392 | ||
1393 | pwd = do_realpath(conn, "."); | |
1394 | if (pwd == NULL) | |
1395 | fatal("Need cwd"); | |
1396 | ||
1397 | if (file1 != NULL) { | |
1398 | dir = xstrdup(file1); | |
1399 | dir = make_absolute(dir, pwd); | |
1400 | ||
1401 | if (remote_is_dir(conn, dir) && file2 == NULL) { | |
1402 | printf("Changing to: %s\n", dir); | |
1403 | snprintf(cmd, sizeof cmd, "cd \"%s\"", dir); | |
1404 | if (parse_dispatch_command(conn, cmd, &pwd, 1) != 0) { | |
1405 | xfree(dir); | |
1406 | xfree(pwd); | |
30460aeb | 1407 | xfree(conn); |
8af0406b | 1408 | return (-1); |
1409 | } | |
1410 | } else { | |
1411 | if (file2 == NULL) | |
1412 | snprintf(cmd, sizeof cmd, "get %s", dir); | |
1413 | else | |
1414 | snprintf(cmd, sizeof cmd, "get %s %s", dir, | |
1415 | file2); | |
1416 | ||
1417 | err = parse_dispatch_command(conn, cmd, &pwd, 1); | |
1418 | xfree(dir); | |
1419 | xfree(pwd); | |
30460aeb | 1420 | xfree(conn); |
8af0406b | 1421 | return (err); |
1422 | } | |
1423 | xfree(dir); | |
1424 | } | |
1425 | ||
1426 | #if defined(HAVE_SETVBUF) && !defined(BROKEN_SETVBUF) | |
1427 | setvbuf(stdout, NULL, _IOLBF, 0); | |
1428 | setvbuf(infile, NULL, _IOLBF, 0); | |
3c0ef626 | 1429 | #else |
8af0406b | 1430 | setlinebuf(stdout); |
1431 | setlinebuf(infile); | |
3c0ef626 | 1432 | #endif |
1433 | ||
8af0406b | 1434 | interactive = !batchmode && isatty(STDIN_FILENO); |
1435 | err = 0; | |
1436 | for (;;) { | |
1437 | char *cp; | |
1438 | ||
1439 | signal(SIGINT, SIG_IGN); | |
1440 | ||
1441 | if (el == NULL) { | |
1442 | if (interactive) | |
1443 | printf("sftp> "); | |
1444 | if (fgets(cmd, sizeof(cmd), infile) == NULL) { | |
1445 | if (interactive) | |
1446 | printf("\n"); | |
1447 | break; | |
1448 | } | |
1449 | if (!interactive) { /* Echo command */ | |
1450 | printf("sftp> %s", cmd); | |
1451 | if (strlen(cmd) > 0 && | |
1452 | cmd[strlen(cmd) - 1] != '\n') | |
1453 | printf("\n"); | |
1454 | } | |
1455 | } else { | |
1456 | #ifdef USE_LIBEDIT | |
1457 | const char *line; | |
1458 | int count = 0; | |
1459 | ||
1460 | if ((line = el_gets(el, &count)) == NULL || count <= 0) { | |
1461 | printf("\n"); | |
1462 | break; | |
1463 | } | |
1464 | history(hl, &hev, H_ENTER, line); | |
1465 | if (strlcpy(cmd, line, sizeof(cmd)) >= sizeof(cmd)) { | |
1466 | fprintf(stderr, "Error: input line too long\n"); | |
1467 | continue; | |
1468 | } | |
1469 | #endif /* USE_LIBEDIT */ | |
1470 | } | |
1471 | ||
1472 | cp = strrchr(cmd, '\n'); | |
1473 | if (cp) | |
1474 | *cp = '\0'; | |
1475 | ||
1476 | /* Handle user interrupts gracefully during commands */ | |
1477 | interrupted = 0; | |
1478 | signal(SIGINT, cmd_interrupt); | |
1479 | ||
1480 | err = parse_dispatch_command(conn, cmd, &pwd, batchmode); | |
1481 | if (err != 0) | |
1482 | break; | |
1483 | } | |
1484 | xfree(pwd); | |
30460aeb | 1485 | xfree(conn); |
8af0406b | 1486 | |
1487 | #ifdef USE_LIBEDIT | |
1488 | if (el != NULL) | |
1489 | el_end(el); | |
1490 | #endif /* USE_LIBEDIT */ | |
1491 | ||
1492 | /* err == 1 signifies normal "quit" exit */ | |
1493 | return (err >= 0 ? 0 : -1); | |
1494 | } | |
3c0ef626 | 1495 | |
1496 | static void | |
8af0406b | 1497 | connect_to_server(char *path, char **args, int *in, int *out) |
3c0ef626 | 1498 | { |
1499 | int c_in, c_out; | |
8af0406b | 1500 | |
3c0ef626 | 1501 | #ifdef USE_PIPES |
1502 | int pin[2], pout[2]; | |
8af0406b | 1503 | |
3c0ef626 | 1504 | if ((pipe(pin) == -1) || (pipe(pout) == -1)) |
1505 | fatal("pipe: %s", strerror(errno)); | |
1506 | *in = pin[0]; | |
1507 | *out = pout[1]; | |
1508 | c_in = pout[0]; | |
1509 | c_out = pin[1]; | |
1510 | #else /* USE_PIPES */ | |
1511 | int inout[2]; | |
8af0406b | 1512 | |
3c0ef626 | 1513 | if (socketpair(AF_UNIX, SOCK_STREAM, 0, inout) == -1) |
1514 | fatal("socketpair: %s", strerror(errno)); | |
1515 | *in = *out = inout[0]; | |
1516 | c_in = c_out = inout[1]; | |
1517 | #endif /* USE_PIPES */ | |
1518 | ||
8af0406b | 1519 | if ((sshpid = fork()) == -1) |
3c0ef626 | 1520 | fatal("fork: %s", strerror(errno)); |
8af0406b | 1521 | else if (sshpid == 0) { |
3c0ef626 | 1522 | if ((dup2(c_in, STDIN_FILENO) == -1) || |
1523 | (dup2(c_out, STDOUT_FILENO) == -1)) { | |
1524 | fprintf(stderr, "dup2: %s\n", strerror(errno)); | |
8af0406b | 1525 | _exit(1); |
3c0ef626 | 1526 | } |
1527 | close(*in); | |
1528 | close(*out); | |
1529 | close(c_in); | |
1530 | close(c_out); | |
8af0406b | 1531 | |
1532 | /* | |
1533 | * The underlying ssh is in the same process group, so we must | |
1534 | * ignore SIGINT if we want to gracefully abort commands, | |
1535 | * otherwise the signal will make it to the ssh process and | |
1536 | * kill it too | |
1537 | */ | |
1538 | signal(SIGINT, SIG_IGN); | |
1539 | execvp(path, args); | |
1540 | fprintf(stderr, "exec: %s: %s\n", path, strerror(errno)); | |
1541 | _exit(1); | |
3c0ef626 | 1542 | } |
1543 | ||
8af0406b | 1544 | signal(SIGTERM, killchild); |
1545 | signal(SIGINT, killchild); | |
1546 | signal(SIGHUP, killchild); | |
3c0ef626 | 1547 | close(c_in); |
1548 | close(c_out); | |
1549 | } | |
1550 | ||
1551 | static void | |
1552 | usage(void) | |
1553 | { | |
8af0406b | 1554 | extern char *__progname; |
1555 | ||
3c0ef626 | 1556 | fprintf(stderr, |
8af0406b | 1557 | "usage: %s [-1Cv] [-B buffer_size] [-b batchfile] [-F ssh_config]\n" |
1558 | " [-o ssh_option] [-P sftp_server_path] [-R num_requests]\n" | |
1559 | " [-S program] [-s subsystem | sftp_server] host\n" | |
1560 | " %s [[user@]host[:file [file]]]\n" | |
1561 | " %s [[user@]host[:dir[/]]]\n" | |
1562 | " %s -b batchfile [user@]host\n", __progname, __progname, __progname, __progname); | |
3c0ef626 | 1563 | exit(1); |
1564 | } | |
1565 | ||
1566 | int | |
1567 | main(int argc, char **argv) | |
1568 | { | |
8af0406b | 1569 | int in, out, ch, err; |
1570 | char *host, *userhost, *cp, *file2 = NULL; | |
3c0ef626 | 1571 | int debug_level = 0, sshver = 2; |
1572 | char *file1 = NULL, *sftp_server = NULL; | |
8af0406b | 1573 | char *ssh_program = _PATH_SSH_PROGRAM, *sftp_direct = NULL; |
3c0ef626 | 1574 | LogLevel ll = SYSLOG_LEVEL_INFO; |
1575 | arglist args; | |
1576 | extern int optind; | |
1577 | extern char *optarg; | |
1578 | ||
8af0406b | 1579 | /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */ |
1580 | sanitise_stdfd(); | |
1581 | ||
1582 | __progname = ssh_get_progname(argv[0]); | |
1583 | memset(&args, '\0', sizeof(args)); | |
3c0ef626 | 1584 | args.list = NULL; |
30460aeb | 1585 | addargs(&args, "%s", ssh_program); |
3c0ef626 | 1586 | addargs(&args, "-oForwardX11 no"); |
1587 | addargs(&args, "-oForwardAgent no"); | |
8af0406b | 1588 | addargs(&args, "-oPermitLocalCommand no"); |
3c0ef626 | 1589 | addargs(&args, "-oClearAllForwardings yes"); |
8af0406b | 1590 | |
3c0ef626 | 1591 | ll = SYSLOG_LEVEL_INFO; |
8af0406b | 1592 | infile = stdin; |
3c0ef626 | 1593 | |
a7213e65 | 1594 | while ((ch = getopt(argc, argv, "1hvCo:s:S:b:B:F:P:R:")) != -1) { |
3c0ef626 | 1595 | switch (ch) { |
1596 | case 'C': | |
1597 | addargs(&args, "-C"); | |
1598 | break; | |
1599 | case 'v': | |
1600 | if (debug_level < 3) { | |
1601 | addargs(&args, "-v"); | |
1602 | ll = SYSLOG_LEVEL_DEBUG1 + debug_level; | |
1603 | } | |
1604 | debug_level++; | |
1605 | break; | |
1606 | case 'F': | |
1607 | case 'o': | |
1608 | addargs(&args, "-%c%s", ch, optarg); | |
1609 | break; | |
1610 | case '1': | |
1611 | sshver = 1; | |
1612 | if (sftp_server == NULL) | |
1613 | sftp_server = _PATH_SFTP_SERVER; | |
1614 | break; | |
1615 | case 's': | |
1616 | sftp_server = optarg; | |
1617 | break; | |
1618 | case 'S': | |
1619 | ssh_program = optarg; | |
8af0406b | 1620 | replacearg(&args, 0, "%s", ssh_program); |
3c0ef626 | 1621 | break; |
1622 | case 'b': | |
8af0406b | 1623 | if (batchmode) |
1624 | fatal("Batch file already specified."); | |
1625 | ||
1626 | /* Allow "-" as stdin */ | |
1627 | if (strcmp(optarg, "-") != 0 && | |
1628 | (infile = fopen(optarg, "r")) == NULL) | |
1629 | fatal("%s (%s).", strerror(errno), optarg); | |
1630 | showprogress = 0; | |
1631 | batchmode = 1; | |
1632 | addargs(&args, "-obatchmode yes"); | |
1633 | break; | |
1634 | case 'P': | |
1635 | sftp_direct = optarg; | |
1636 | break; | |
1637 | case 'B': | |
1638 | copy_buffer_len = strtol(optarg, &cp, 10); | |
1639 | if (copy_buffer_len == 0 || *cp != '\0') | |
1640 | fatal("Invalid buffer size \"%s\"", optarg); | |
1641 | break; | |
1642 | case 'R': | |
1643 | num_requests = strtol(optarg, &cp, 10); | |
1644 | if (num_requests == 0 || *cp != '\0') | |
1645 | fatal("Invalid number of requests \"%s\"", | |
1646 | optarg); | |
3c0ef626 | 1647 | break; |
1648 | case 'h': | |
1649 | default: | |
1650 | usage(); | |
1651 | } | |
1652 | } | |
1653 | ||
8af0406b | 1654 | if (!isatty(STDERR_FILENO)) |
1655 | showprogress = 0; | |
3c0ef626 | 1656 | |
8af0406b | 1657 | log_init(argv[0], ll, SYSLOG_FACILITY_USER, 1); |
3c0ef626 | 1658 | |
8af0406b | 1659 | if (sftp_direct == NULL) { |
1660 | if (optind == argc || argc > (optind + 2)) | |
3c0ef626 | 1661 | usage(); |
8af0406b | 1662 | |
1663 | userhost = xstrdup(argv[optind]); | |
1664 | file2 = argv[optind+1]; | |
1665 | ||
1666 | if ((host = strrchr(userhost, '@')) == NULL) | |
1667 | host = userhost; | |
1668 | else { | |
1669 | *host++ = '\0'; | |
1670 | if (!userhost[0]) { | |
1671 | fprintf(stderr, "Missing username\n"); | |
1672 | usage(); | |
1673 | } | |
0b90ac93 | 1674 | addargs(&args, "-l%s", userhost); |
3c0ef626 | 1675 | } |
3c0ef626 | 1676 | |
8af0406b | 1677 | if ((cp = colon(host)) != NULL) { |
1678 | *cp++ = '\0'; | |
1679 | file1 = cp; | |
1680 | } | |
3c0ef626 | 1681 | |
8af0406b | 1682 | host = cleanhostname(host); |
1683 | if (!*host) { | |
1684 | fprintf(stderr, "Missing hostname\n"); | |
1685 | usage(); | |
1686 | } | |
3c0ef626 | 1687 | |
8af0406b | 1688 | addargs(&args, "-oProtocol %d", sshver); |
3c0ef626 | 1689 | |
8af0406b | 1690 | /* no subsystem if the server-spec contains a '/' */ |
1691 | if (sftp_server == NULL || strchr(sftp_server, '/') == NULL) | |
1692 | addargs(&args, "-s"); | |
3c0ef626 | 1693 | |
8af0406b | 1694 | addargs(&args, "%s", host); |
1695 | addargs(&args, "%s", (sftp_server != NULL ? | |
1696 | sftp_server : "sftp")); | |
3c0ef626 | 1697 | |
8af0406b | 1698 | if (!batchmode) |
1699 | fprintf(stderr, "Connecting to %s...\n", host); | |
1700 | connect_to_server(ssh_program, args.list, &in, &out); | |
1701 | } else { | |
1702 | args.list = NULL; | |
1703 | addargs(&args, "sftp-server"); | |
1704 | ||
1705 | if (!batchmode) | |
1706 | fprintf(stderr, "Attaching to %s...\n", sftp_direct); | |
1707 | connect_to_server(sftp_direct, args.list, &in, &out); | |
1708 | } | |
1709 | freeargs(&args); | |
3c0ef626 | 1710 | |
8af0406b | 1711 | err = interactive_loop(in, out, file1, file2); |
3c0ef626 | 1712 | |
1713 | #if !defined(USE_PIPES) | |
8af0406b | 1714 | shutdown(in, SHUT_RDWR); |
1715 | shutdown(out, SHUT_RDWR); | |
3c0ef626 | 1716 | #endif |
1717 | ||
1718 | close(in); | |
1719 | close(out); | |
8af0406b | 1720 | if (batchmode) |
3c0ef626 | 1721 | fclose(infile); |
1722 | ||
8af0406b | 1723 | while (waitpid(sshpid, NULL, 0) == -1) |
1724 | if (errno != EINTR) | |
1725 | fatal("Couldn't wait for ssh process: %s", | |
1726 | strerror(errno)); | |
3c0ef626 | 1727 | |
8af0406b | 1728 | exit(err == 0 ? 0 : 1); |
3c0ef626 | 1729 | } |