blob: c4f027846b18342ea07f15c4f1179f3573d0c06c [file] [log] [blame]
Damien Miller33804262001-02-04 23:20:18 +11001/*
Damien Miller4e60ed72004-02-17 17:07:59 +11002 * Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org>
Damien Miller33804262001-02-04 23:20:18 +11003 *
Damien Miller4e60ed72004-02-17 17:07:59 +11004 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
Damien Miller33804262001-02-04 23:20:18 +11007 *
Damien Miller4e60ed72004-02-17 17:07:59 +11008 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
Damien Miller33804262001-02-04 23:20:18 +110015 */
16
17#include "includes.h"
Damien Millerf17883e2006-03-15 11:45:54 +110018RCSID("$OpenBSD: sftp.c,v 1.75 2006/02/20 17:19:54 stevesk Exp $");
Damien Miller33804262001-02-04 23:20:18 +110019
Damien Miller9cf6d072006-03-15 11:29:24 +110020#include <sys/types.h>
Damien Millerf17883e2006-03-15 11:45:54 +110021#ifdef HAVE_SYS_STAT_H
22# include <sys/stat.h>
23#endif
24#include <sys/ioctl.h>
Damien Miller9cf6d072006-03-15 11:29:24 +110025#include <sys/wait.h>
Darren Tucker2d963d82004-11-07 20:04:10 +110026
Damien Miller03e20032006-03-15 11:16:59 +110027#ifdef HAVE_PATHS_H
Damien Millera9263d02006-03-15 11:18:26 +110028# include <paths.h>
Damien Miller03e20032006-03-15 11:16:59 +110029#endif
Darren Tucker2d963d82004-11-07 20:04:10 +110030#ifdef USE_LIBEDIT
31#include <histedit.h>
32#else
33typedef void EditLine;
34#endif
Damien Miller6ff3cad2006-03-15 11:52:09 +110035#include <signal.h>
Damien Miller33804262001-02-04 23:20:18 +110036
37#include "buffer.h"
38#include "xmalloc.h"
39#include "log.h"
40#include "pathnames.h"
Ben Lindstrom4529b702001-05-03 23:39:53 +000041#include "misc.h"
Damien Miller33804262001-02-04 23:20:18 +110042
43#include "sftp.h"
44#include "sftp-common.h"
45#include "sftp-client.h"
Damien Millerd7d46bb2004-02-18 14:11:13 +110046
Damien Miller20e1fab2004-02-18 14:30:55 +110047/* File to read commands from */
48FILE* infile;
49
50/* Are we in batchfile mode? */
51int batchmode = 0;
52
53/* Size of buffer used when copying files */
54size_t copy_buffer_len = 32768;
55
56/* Number of concurrent outstanding requests */
57size_t num_requests = 16;
58
59/* PID of ssh transport process */
60static pid_t sshpid = -1;
61
62/* This is set to 0 if the progressmeter is not desired. */
Damien Millerc0f27d82004-03-08 23:12:19 +110063int showprogress = 1;
Damien Miller20e1fab2004-02-18 14:30:55 +110064
Darren Tuckercdf547a2004-05-24 10:12:19 +100065/* SIGINT received during command processing */
66volatile sig_atomic_t interrupted = 0;
67
Darren Tuckerb9123452004-06-22 13:06:45 +100068/* I wish qsort() took a separate ctx for the comparison function...*/
69int sort_flag;
70
Damien Miller20e1fab2004-02-18 14:30:55 +110071int remote_glob(struct sftp_conn *, const char *, int,
72 int (*)(const char *, int), glob_t *); /* proto for sftp-glob.c */
Damien Miller33804262001-02-04 23:20:18 +110073
Kevin Steves12888d12001-03-05 19:50:57 +000074extern char *__progname;
Kevin Steves12888d12001-03-05 19:50:57 +000075
Damien Miller20e1fab2004-02-18 14:30:55 +110076/* Separators for interactive commands */
77#define WHITESPACE " \t\r\n"
Damien Millerd7686fd2001-02-10 00:40:03 +110078
Darren Tuckerb9123452004-06-22 13:06:45 +100079/* ls flags */
Darren Tuckera4e9ffa2004-06-22 13:07:58 +100080#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 */
Darren Tucker9a526452004-06-22 13:09:55 +100087#define LS_SHOW_ALL 0x80 /* Don't skip filenames starting with '.' */
Darren Tuckerb9123452004-06-22 13:06:45 +100088
Darren Tuckera4e9ffa2004-06-22 13:07:58 +100089#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)
Damien Miller20e1fab2004-02-18 14:30:55 +110091
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
117struct CMD {
118 const char *c;
119 const int n;
120};
121
122static 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
158int interactive_loop(int fd_in, int fd_out, char *file1, char *file2);
159
160static void
Darren Tuckercdf547a2004-05-24 10:12:19 +1000161killchild(int signo)
162{
Darren Tuckerba66df82005-01-24 21:57:40 +1100163 if (sshpid > 1) {
Darren Tuckercdf547a2004-05-24 10:12:19 +1000164 kill(sshpid, SIGTERM);
Darren Tuckerba66df82005-01-24 21:57:40 +1100165 waitpid(sshpid, NULL, 0);
166 }
Darren Tuckercdf547a2004-05-24 10:12:19 +1000167
168 _exit(1);
169}
170
171static void
172cmd_interrupt(int signo)
173{
174 const char msg[] = "\rInterrupt \n";
Darren Tuckere2f189a2004-12-06 22:45:53 +1100175 int olderrno = errno;
Darren Tuckercdf547a2004-05-24 10:12:19 +1000176
177 write(STDERR_FILENO, msg, sizeof(msg) - 1);
178 interrupted = 1;
Darren Tuckere2f189a2004-12-06 22:45:53 +1100179 errno = olderrno;
Darren Tuckercdf547a2004-05-24 10:12:19 +1000180}
181
182static void
Damien Miller20e1fab2004-02-18 14:30:55 +1100183help(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
215static void
216local_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 abormally");
249 else if (WEXITSTATUS(status))
250 error("Shell exited with status %d", WEXITSTATUS(status));
251}
252
253static void
254local_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 */
270static char *
271path_strip(char *path, char *strip)
272{
273 size_t len;
274
275 if (strip == NULL)
276 return (xstrdup(path));
277
278 len = strlen(strip);
Darren Tuckere2f189a2004-12-06 22:45:53 +1100279 if (strncmp(path, strip, len) == 0) {
Damien Miller20e1fab2004-02-18 14:30:55 +1100280 if (strip[len - 1] != '/' && path[len] == '/')
281 len++;
282 return (xstrdup(path + len));
283 }
284
285 return (xstrdup(path));
286}
287
288static char *
289path_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
303static char *
304make_absolute(char *p, char *pwd)
305{
Darren Tucker3f9fdc72004-06-22 12:56:01 +1000306 char *abs_str;
Damien Miller20e1fab2004-02-18 14:30:55 +1100307
308 /* Derelativise */
309 if (p && p[0] != '/') {
Darren Tucker3f9fdc72004-06-22 12:56:01 +1000310 abs_str = path_append(pwd, p);
Damien Miller20e1fab2004-02-18 14:30:55 +1100311 xfree(p);
Darren Tucker3f9fdc72004-06-22 12:56:01 +1000312 return(abs_str);
Damien Miller20e1fab2004-02-18 14:30:55 +1100313 } else
314 return(p);
315}
316
317static int
318infer_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
337static int
338parse_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
360static int
361parse_ls_flags(const char **cpp, int *lflag)
362{
363 const char *cp = *cpp;
364
Darren Tuckerb9123452004-06-22 13:06:45 +1000365 /* Defaults */
Darren Tuckera4e9ffa2004-06-22 13:07:58 +1000366 *lflag = LS_NAME_SORT;
Darren Tuckerb9123452004-06-22 13:06:45 +1000367
Damien Miller20e1fab2004-02-18 14:30:55 +1100368 /* Check for flags */
369 if (cp++[0] == '-') {
Darren Tucker47eede72005-03-14 23:08:12 +1100370 for (; strchr(WHITESPACE, *cp) == NULL; cp++) {
Damien Miller20e1fab2004-02-18 14:30:55 +1100371 switch (*cp) {
372 case 'l':
Darren Tuckerb215c5d2004-06-22 12:30:53 +1000373 *lflag &= ~VIEW_FLAGS;
Darren Tuckera4e9ffa2004-06-22 13:07:58 +1000374 *lflag |= LS_LONG_VIEW;
Damien Miller20e1fab2004-02-18 14:30:55 +1100375 break;
376 case '1':
Darren Tuckerb215c5d2004-06-22 12:30:53 +1000377 *lflag &= ~VIEW_FLAGS;
Darren Tuckera4e9ffa2004-06-22 13:07:58 +1000378 *lflag |= LS_SHORT_VIEW;
Darren Tuckerb215c5d2004-06-22 12:30:53 +1000379 break;
380 case 'n':
381 *lflag &= ~VIEW_FLAGS;
Darren Tuckera4e9ffa2004-06-22 13:07:58 +1000382 *lflag |= LS_NUMERIC_VIEW|LS_LONG_VIEW;
Damien Miller20e1fab2004-02-18 14:30:55 +1100383 break;
Darren Tuckerb9123452004-06-22 13:06:45 +1000384 case 'S':
385 *lflag &= ~SORT_FLAGS;
Darren Tuckera4e9ffa2004-06-22 13:07:58 +1000386 *lflag |= LS_SIZE_SORT;
Darren Tuckerb9123452004-06-22 13:06:45 +1000387 break;
388 case 't':
389 *lflag &= ~SORT_FLAGS;
Darren Tuckera4e9ffa2004-06-22 13:07:58 +1000390 *lflag |= LS_TIME_SORT;
Darren Tuckerb9123452004-06-22 13:06:45 +1000391 break;
392 case 'r':
Darren Tuckera4e9ffa2004-06-22 13:07:58 +1000393 *lflag |= LS_REVERSE_SORT;
Darren Tuckerb9123452004-06-22 13:06:45 +1000394 break;
395 case 'f':
396 *lflag &= ~SORT_FLAGS;
397 break;
Darren Tucker9a526452004-06-22 13:09:55 +1000398 case 'a':
399 *lflag |= LS_SHOW_ALL;
400 break;
Damien Miller20e1fab2004-02-18 14:30:55 +1100401 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
412static int
413get_pathname(const char **cpp, char **path)
414{
415 const char *cp = *cpp, *end;
416 char quot;
Damien Millereccb9de2005-06-17 12:59:34 +1000417 u_int i, j;
Damien Miller20e1fab2004-02-18 14:30:55 +1100418
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] != '\\') {
Damien Miller96d6d7d2004-06-26 09:21:06 +1000447 error("Bad escaped character '\\%c'",
Damien Miller20e1fab2004-02-18 14:30:55 +1100448 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
478static int
479is_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
490static int
491is_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
501static int
502remote_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
514static int
515process_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
Darren Tuckercdf547a2004-05-24 10:12:19 +1000543 for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
Damien Miller20e1fab2004-02-18 14:30:55 +1100544 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
573out:
574 xfree(abs_src);
575 if (abs_dst)
576 xfree(abs_dst);
577 globfree(&g);
578 return(err);
579}
580
581static int
582process_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
Darren Tuckercdf547a2004-05-24 10:12:19 +1000612 for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
Damien Miller20e1fab2004-02-18 14:30:55 +1100613 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
646out:
647 if (abs_dst)
648 xfree(abs_dst);
649 if (tmp_dst)
650 xfree(tmp_dst);
651 globfree(&g);
652 return(err);
653}
654
655static int
656sdirent_comp(const void *aa, const void *bb)
657{
658 SFTP_DIRENT *a = *(SFTP_DIRENT **)aa;
659 SFTP_DIRENT *b = *(SFTP_DIRENT **)bb;
Darren Tuckera4e9ffa2004-06-22 13:07:58 +1000660 int rmul = sort_flag & LS_REVERSE_SORT ? -1 : 1;
Damien Miller20e1fab2004-02-18 14:30:55 +1100661
Darren Tuckerb9123452004-06-22 13:06:45 +1000662#define NCMP(a,b) (a == b ? 0 : (a < b ? 1 : -1))
Darren Tuckera4e9ffa2004-06-22 13:07:58 +1000663 if (sort_flag & LS_NAME_SORT)
Darren Tuckerb9123452004-06-22 13:06:45 +1000664 return (rmul * strcmp(a->filename, b->filename));
Darren Tuckera4e9ffa2004-06-22 13:07:58 +1000665 else if (sort_flag & LS_TIME_SORT)
Darren Tuckerb9123452004-06-22 13:06:45 +1000666 return (rmul * NCMP(a->a.mtime, b->a.mtime));
Darren Tuckera4e9ffa2004-06-22 13:07:58 +1000667 else if (sort_flag & LS_SIZE_SORT)
Darren Tuckerb9123452004-06-22 13:06:45 +1000668 return (rmul * NCMP(a->a.size, b->a.size));
669
670 fatal("Unknown ls sort type");
Damien Miller20e1fab2004-02-18 14:30:55 +1100671}
672
673/* sftp ls.1 replacement for directories */
674static int
675do_ls_dir(struct sftp_conn *conn, char *path, char *strip_path, int lflag)
676{
Damien Millereccb9de2005-06-17 12:59:34 +1000677 int n;
678 u_int c = 1, colspace = 0, columns = 1;
Damien Miller20e1fab2004-02-18 14:30:55 +1100679 SFTP_DIRENT **d;
680
681 if ((n = do_readdir(conn, path, &d)) != 0)
682 return (n);
683
Darren Tuckera4e9ffa2004-06-22 13:07:58 +1000684 if (!(lflag & LS_SHORT_VIEW)) {
Damien Millereccb9de2005-06-17 12:59:34 +1000685 u_int m = 0, width = 80;
Damien Miller20e1fab2004-02-18 14:30:55 +1100686 struct winsize ws;
687 char *tmp;
688
689 /* Count entries for sort and find longest filename */
Darren Tucker9a526452004-06-22 13:09:55 +1000690 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 }
Damien Miller20e1fab2004-02-18 14:30:55 +1100694
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
Darren Tuckerb9123452004-06-22 13:06:45 +1000709 if (lflag & SORT_FLAGS) {
Damien Miller653b93b2005-11-05 15:15:23 +1100710 for (n = 0; d[n] != NULL; n++)
711 ; /* count entries */
Darren Tuckera4e9ffa2004-06-22 13:07:58 +1000712 sort_flag = lflag & (SORT_FLAGS|LS_REVERSE_SORT);
Darren Tuckerb9123452004-06-22 13:06:45 +1000713 qsort(d, n, sizeof(*d), sdirent_comp);
714 }
Damien Miller20e1fab2004-02-18 14:30:55 +1100715
Darren Tuckercdf547a2004-05-24 10:12:19 +1000716 for (n = 0; d[n] != NULL && !interrupted; n++) {
Damien Miller20e1fab2004-02-18 14:30:55 +1100717 char *tmp, *fname;
718
Darren Tucker9a526452004-06-22 13:09:55 +1000719 if (d[n]->filename[0] == '.' && !(lflag & LS_SHOW_ALL))
720 continue;
721
Damien Miller20e1fab2004-02-18 14:30:55 +1100722 tmp = path_append(path, d[n]->filename);
723 fname = path_strip(tmp, strip_path);
724 xfree(tmp);
725
Darren Tuckera4e9ffa2004-06-22 13:07:58 +1000726 if (lflag & LS_LONG_VIEW) {
727 if (lflag & LS_NUMERIC_VIEW) {
Darren Tuckerb215c5d2004-06-22 12:30:53 +1000728 char *lname;
729 struct stat sb;
Damien Miller20e1fab2004-02-18 14:30:55 +1100730
Darren Tuckerb215c5d2004-06-22 12:30:53 +1000731 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);
Damien Miller20e1fab2004-02-18 14:30:55 +1100738 } 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
Darren Tuckera4e9ffa2004-06-22 13:07:58 +1000750 if (!(lflag & LS_LONG_VIEW) && (c != 1))
Damien Miller20e1fab2004-02-18 14:30:55 +1100751 printf("\n");
752
753 free_sftp_dirents(d);
754 return (0);
755}
756
757/* sftp ls.1 replacement which handles path globs */
758static int
759do_globbed_ls(struct sftp_conn *conn, char *path, char *strip_path,
760 int lflag)
761{
762 glob_t g;
Damien Millereccb9de2005-06-17 12:59:34 +1000763 u_int i, c = 1, colspace = 0, columns = 1;
Darren Tucker596dcfa2004-12-11 13:37:22 +1100764 Attrib *a = NULL;
Damien Miller20e1fab2004-02-18 14:30:55 +1100765
766 memset(&g, 0, sizeof(g));
767
768 if (remote_glob(conn, path, GLOB_MARK|GLOB_NOCHECK|GLOB_BRACE,
Darren Tucker596dcfa2004-12-11 13:37:22 +1100769 NULL, &g) || (g.gl_pathc && !g.gl_matchc)) {
770 if (g.gl_pathc)
771 globfree(&g);
Damien Miller20e1fab2004-02-18 14:30:55 +1100772 error("Can't ls: \"%s\" not found", path);
773 return (-1);
774 }
775
Darren Tuckercdf547a2004-05-24 10:12:19 +1000776 if (interrupted)
777 goto out;
778
Damien Miller20e1fab2004-02-18 14:30:55 +1100779 /*
Darren Tucker596dcfa2004-12-11 13:37:22 +1100780 * If the glob returns a single match and it is a directory,
781 * then just list its contents.
Damien Miller20e1fab2004-02-18 14:30:55 +1100782 */
Darren Tucker596dcfa2004-12-11 13:37:22 +1100783 if (g.gl_matchc == 1) {
784 if ((a = do_lstat(conn, g.gl_pathv[0], 1)) == NULL) {
Damien Miller20e1fab2004-02-18 14:30:55 +1100785 globfree(&g);
786 return (-1);
787 }
788 if ((a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) &&
789 S_ISDIR(a->perm)) {
Darren Tucker596dcfa2004-12-11 13:37:22 +1100790 int err;
791
792 err = do_ls_dir(conn, g.gl_pathv[0], strip_path, lflag);
Damien Miller20e1fab2004-02-18 14:30:55 +1100793 globfree(&g);
Darren Tucker596dcfa2004-12-11 13:37:22 +1100794 return (err);
Damien Miller20e1fab2004-02-18 14:30:55 +1100795 }
796 }
797
Darren Tuckera4e9ffa2004-06-22 13:07:58 +1000798 if (!(lflag & LS_SHORT_VIEW)) {
Damien Millereccb9de2005-06-17 12:59:34 +1000799 u_int m = 0, width = 80;
Damien Miller20e1fab2004-02-18 14:30:55 +1100800 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
Darren Tucker596dcfa2004-12-11 13:37:22 +1100814 for (i = 0; g.gl_pathv[i] && !interrupted; i++, a = NULL) {
Damien Miller20e1fab2004-02-18 14:30:55 +1100815 char *fname;
816
817 fname = path_strip(g.gl_pathv[i], strip_path);
818
Darren Tuckera4e9ffa2004-06-22 13:07:58 +1000819 if (lflag & LS_LONG_VIEW) {
Damien Miller20e1fab2004-02-18 14:30:55 +1100820 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));
Darren Tucker596dcfa2004-12-11 13:37:22 +1100831 if (a == NULL)
832 a = do_lstat(conn, g.gl_pathv[i], 1);
Damien Miller20e1fab2004-02-18 14:30:55 +1100833 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
Darren Tuckera4e9ffa2004-06-22 13:07:58 +1000849 if (!(lflag & LS_LONG_VIEW) && (c != 1))
Damien Miller20e1fab2004-02-18 14:30:55 +1100850 printf("\n");
851
Darren Tuckercdf547a2004-05-24 10:12:19 +1000852 out:
Damien Miller20e1fab2004-02-18 14:30:55 +1100853 if (g.gl_pathc)
854 globfree(&g);
855
856 return (0);
857}
858
859static int
860parse_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
1014static int
1015parse_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);
Darren Tuckercdf547a2004-05-24 10:12:19 +10001062 for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
Damien Miller20e1fab2004-02-18 14:30:55 +11001063 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);
Darren Tuckercdf547a2004-05-24 10:12:19 +10001151 for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
Damien Miller20e1fab2004-02-18 14:30:55 +11001152 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);
Darren Tuckercdf547a2004-05-24 10:12:19 +10001162 for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
Damien Miller20e1fab2004-02-18 14:30:55 +11001163 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
Darren Tucker2d963d82004-11-07 20:04:10 +11001237#ifdef USE_LIBEDIT
1238static char *
1239prompt(EditLine *el)
1240{
1241 return ("sftp> ");
1242}
1243#endif
1244
Damien Miller20e1fab2004-02-18 14:30:55 +11001245int
1246interactive_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;
Damien Miller0e2c1022005-08-12 22:16:22 +10001252 int err, interactive;
Darren Tucker2d963d82004-11-07 20:04:10 +11001253 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 */
Damien Miller20e1fab2004-02-18 14:30:55 +11001274
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);
Darren Tuckercd516ef2004-12-06 22:43:43 +11001290 if (parse_dispatch_command(conn, cmd, &pwd, 1) != 0) {
1291 xfree(dir);
1292 xfree(pwd);
Damien Miller20e1fab2004-02-18 14:30:55 +11001293 return (-1);
Darren Tuckercd516ef2004-12-06 22:43:43 +11001294 }
Damien Miller20e1fab2004-02-18 14:30:55 +11001295 } else {
1296 if (file2 == NULL)
1297 snprintf(cmd, sizeof cmd, "get %s", dir);
1298 else
1299 snprintf(cmd, sizeof cmd, "get %s %s", dir,
1300 file2);
1301
1302 err = parse_dispatch_command(conn, cmd, &pwd, 1);
1303 xfree(dir);
1304 xfree(pwd);
1305 return (err);
1306 }
1307 xfree(dir);
1308 }
1309
Darren Tucker93e7e8f2005-08-23 08:06:55 +10001310#if defined(HAVE_SETVBUF) && !defined(BROKEN_SETVBUF)
Damien Miller20e1fab2004-02-18 14:30:55 +11001311 setvbuf(stdout, NULL, _IOLBF, 0);
1312 setvbuf(infile, NULL, _IOLBF, 0);
1313#else
Damien Miller37294fb2005-07-17 17:18:49 +10001314 setlinebuf(stdout);
1315 setlinebuf(infile);
Damien Miller20e1fab2004-02-18 14:30:55 +11001316#endif
1317
Damien Miller0e2c1022005-08-12 22:16:22 +10001318 interactive = !batchmode && isatty(STDIN_FILENO);
Damien Miller20e1fab2004-02-18 14:30:55 +11001319 err = 0;
1320 for (;;) {
1321 char *cp;
1322
Darren Tuckercdf547a2004-05-24 10:12:19 +10001323 signal(SIGINT, SIG_IGN);
1324
Darren Tucker2d963d82004-11-07 20:04:10 +11001325 if (el == NULL) {
Damien Miller0e2c1022005-08-12 22:16:22 +10001326 if (interactive)
1327 printf("sftp> ");
Darren Tucker2d963d82004-11-07 20:04:10 +11001328 if (fgets(cmd, sizeof(cmd), infile) == NULL) {
Damien Miller0e2c1022005-08-12 22:16:22 +10001329 if (interactive)
1330 printf("\n");
Darren Tucker2d963d82004-11-07 20:04:10 +11001331 break;
1332 }
Damien Miller0e2c1022005-08-12 22:16:22 +10001333 if (!interactive) { /* Echo command */
1334 printf("sftp> %s", cmd);
1335 if (strlen(cmd) > 0 &&
1336 cmd[strlen(cmd) - 1] != '\n')
1337 printf("\n");
1338 }
Darren Tucker2d963d82004-11-07 20:04:10 +11001339 } else {
1340#ifdef USE_LIBEDIT
1341 const char *line;
1342 int count = 0;
Damien Miller20e1fab2004-02-18 14:30:55 +11001343
Damien Miller0e2c1022005-08-12 22:16:22 +10001344 if ((line = el_gets(el, &count)) == NULL || count <= 0) {
1345 printf("\n");
1346 break;
1347 }
Darren Tucker2d963d82004-11-07 20:04:10 +11001348 history(hl, &hev, H_ENTER, line);
1349 if (strlcpy(cmd, line, sizeof(cmd)) >= sizeof(cmd)) {
1350 fprintf(stderr, "Error: input line too long\n");
1351 continue;
1352 }
1353#endif /* USE_LIBEDIT */
Damien Miller20e1fab2004-02-18 14:30:55 +11001354 }
1355
Damien Miller20e1fab2004-02-18 14:30:55 +11001356 cp = strrchr(cmd, '\n');
1357 if (cp)
1358 *cp = '\0';
1359
Darren Tuckercdf547a2004-05-24 10:12:19 +10001360 /* Handle user interrupts gracefully during commands */
1361 interrupted = 0;
1362 signal(SIGINT, cmd_interrupt);
1363
Damien Miller20e1fab2004-02-18 14:30:55 +11001364 err = parse_dispatch_command(conn, cmd, &pwd, batchmode);
1365 if (err != 0)
1366 break;
1367 }
1368 xfree(pwd);
1369
Tim Rice027e8b12005-08-15 14:52:50 -07001370#ifdef USE_LIBEDIT
Damien Miller0e2c1022005-08-12 22:16:22 +10001371 if (el != NULL)
1372 el_end(el);
Tim Rice027e8b12005-08-15 14:52:50 -07001373#endif /* USE_LIBEDIT */
Damien Miller0e2c1022005-08-12 22:16:22 +10001374
Damien Miller20e1fab2004-02-18 14:30:55 +11001375 /* err == 1 signifies normal "quit" exit */
1376 return (err >= 0 ? 0 : -1);
1377}
Damien Miller62d57f62003-01-10 21:43:24 +11001378
Ben Lindstrombba81212001-06-25 05:01:22 +00001379static void
Damien Millercc685c12003-06-04 22:51:38 +10001380connect_to_server(char *path, char **args, int *in, int *out)
Damien Miller33804262001-02-04 23:20:18 +11001381{
1382 int c_in, c_out;
Ben Lindstromb1f483f2002-06-23 21:27:18 +00001383
Damien Miller33804262001-02-04 23:20:18 +11001384#ifdef USE_PIPES
1385 int pin[2], pout[2];
Ben Lindstromb1f483f2002-06-23 21:27:18 +00001386
Damien Miller33804262001-02-04 23:20:18 +11001387 if ((pipe(pin) == -1) || (pipe(pout) == -1))
1388 fatal("pipe: %s", strerror(errno));
1389 *in = pin[0];
1390 *out = pout[1];
1391 c_in = pout[0];
1392 c_out = pin[1];
1393#else /* USE_PIPES */
1394 int inout[2];
Ben Lindstromb1f483f2002-06-23 21:27:18 +00001395
Damien Miller33804262001-02-04 23:20:18 +11001396 if (socketpair(AF_UNIX, SOCK_STREAM, 0, inout) == -1)
1397 fatal("socketpair: %s", strerror(errno));
1398 *in = *out = inout[0];
1399 c_in = c_out = inout[1];
1400#endif /* USE_PIPES */
1401
Damien Millercc685c12003-06-04 22:51:38 +10001402 if ((sshpid = fork()) == -1)
Damien Miller33804262001-02-04 23:20:18 +11001403 fatal("fork: %s", strerror(errno));
Damien Millercc685c12003-06-04 22:51:38 +10001404 else if (sshpid == 0) {
Damien Miller33804262001-02-04 23:20:18 +11001405 if ((dup2(c_in, STDIN_FILENO) == -1) ||
1406 (dup2(c_out, STDOUT_FILENO) == -1)) {
1407 fprintf(stderr, "dup2: %s\n", strerror(errno));
Damien Miller350327c2004-06-15 10:24:13 +10001408 _exit(1);
Damien Miller33804262001-02-04 23:20:18 +11001409 }
1410 close(*in);
1411 close(*out);
1412 close(c_in);
1413 close(c_out);
Darren Tuckercdf547a2004-05-24 10:12:19 +10001414
1415 /*
1416 * The underlying ssh is in the same process group, so we must
Darren Tuckerfc959702004-07-17 16:12:08 +10001417 * ignore SIGINT if we want to gracefully abort commands,
1418 * otherwise the signal will make it to the ssh process and
Darren Tuckercdf547a2004-05-24 10:12:19 +10001419 * kill it too
1420 */
1421 signal(SIGINT, SIG_IGN);
Darren Tuckerbd12f172004-06-18 16:23:43 +10001422 execvp(path, args);
Damien Millerd14ee1e2002-02-05 12:27:31 +11001423 fprintf(stderr, "exec: %s: %s\n", path, strerror(errno));
Damien Miller350327c2004-06-15 10:24:13 +10001424 _exit(1);
Damien Miller33804262001-02-04 23:20:18 +11001425 }
1426
Damien Millercc685c12003-06-04 22:51:38 +10001427 signal(SIGTERM, killchild);
1428 signal(SIGINT, killchild);
1429 signal(SIGHUP, killchild);
Damien Miller33804262001-02-04 23:20:18 +11001430 close(c_in);
1431 close(c_out);
1432}
1433
Ben Lindstrombba81212001-06-25 05:01:22 +00001434static void
Damien Miller33804262001-02-04 23:20:18 +11001435usage(void)
1436{
Damien Miller025e01c2002-02-08 22:06:29 +11001437 extern char *__progname;
Ben Lindstrom6328ab32002-03-22 02:54:23 +00001438
Ben Lindstrom1e243242001-09-18 05:38:44 +00001439 fprintf(stderr,
Darren Tucker1f203942003-10-15 15:50:42 +10001440 "usage: %s [-1Cv] [-B buffer_size] [-b batchfile] [-F ssh_config]\n"
1441 " [-o ssh_option] [-P sftp_server_path] [-R num_requests]\n"
1442 " [-S program] [-s subsystem | sftp_server] host\n"
1443 " %s [[user@]host[:file [file]]]\n"
1444 " %s [[user@]host[:dir[/]]]\n"
1445 " %s -b batchfile [user@]host\n", __progname, __progname, __progname, __progname);
Damien Miller33804262001-02-04 23:20:18 +11001446 exit(1);
1447}
1448
Kevin Stevesef4eea92001-02-05 12:42:17 +00001449int
Damien Miller33804262001-02-04 23:20:18 +11001450main(int argc, char **argv)
1451{
Damien Miller956f3fb2003-01-10 21:40:00 +11001452 int in, out, ch, err;
Damien Miller7cf17eb2004-06-15 10:28:56 +10001453 char *host, *userhost, *cp, *file2 = NULL;
Ben Lindstrom387c4722001-05-08 20:27:25 +00001454 int debug_level = 0, sshver = 2;
1455 char *file1 = NULL, *sftp_server = NULL;
Damien Millerd14ee1e2002-02-05 12:27:31 +11001456 char *ssh_program = _PATH_SSH_PROGRAM, *sftp_direct = NULL;
Ben Lindstrom387c4722001-05-08 20:27:25 +00001457 LogLevel ll = SYSLOG_LEVEL_INFO;
1458 arglist args;
Damien Millerd7686fd2001-02-10 00:40:03 +11001459 extern int optind;
1460 extern char *optarg;
Damien Miller33804262001-02-04 23:20:18 +11001461
Darren Tuckerce321d82005-10-03 18:11:24 +10001462 /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */
1463 sanitise_stdfd();
1464
Damien Miller59d3d5b2003-08-22 09:34:41 +10001465 __progname = ssh_get_progname(argv[0]);
Damien Miller3eec6b72006-01-31 21:49:27 +11001466 memset(&args, '\0', sizeof(args));
Ben Lindstrom387c4722001-05-08 20:27:25 +00001467 args.list = NULL;
Damien Miller3eec6b72006-01-31 21:49:27 +11001468 addargs(&args, ssh_program);
Ben Lindstrom387c4722001-05-08 20:27:25 +00001469 addargs(&args, "-oForwardX11 no");
1470 addargs(&args, "-oForwardAgent no");
Damien Millerd27b9472005-12-13 19:29:02 +11001471 addargs(&args, "-oPermitLocalCommand no");
Ben Lindstrom2b7a0e92001-09-20 00:57:55 +00001472 addargs(&args, "-oClearAllForwardings yes");
Damien Millere4f5a822004-01-21 14:11:05 +11001473
Ben Lindstrom387c4722001-05-08 20:27:25 +00001474 ll = SYSLOG_LEVEL_INFO;
Damien Millere4f5a822004-01-21 14:11:05 +11001475 infile = stdin;
Damien Millerd7686fd2001-02-10 00:40:03 +11001476
Damien Miller16a13332002-02-13 14:03:56 +11001477 while ((ch = getopt(argc, argv, "1hvCo:s:S:b:B:F:P:R:")) != -1) {
Damien Millerd7686fd2001-02-10 00:40:03 +11001478 switch (ch) {
1479 case 'C':
Ben Lindstrom387c4722001-05-08 20:27:25 +00001480 addargs(&args, "-C");
Damien Millerd7686fd2001-02-10 00:40:03 +11001481 break;
1482 case 'v':
Ben Lindstrom387c4722001-05-08 20:27:25 +00001483 if (debug_level < 3) {
1484 addargs(&args, "-v");
1485 ll = SYSLOG_LEVEL_DEBUG1 + debug_level;
1486 }
1487 debug_level++;
Damien Millerd7686fd2001-02-10 00:40:03 +11001488 break;
Ben Lindstrom1e243242001-09-18 05:38:44 +00001489 case 'F':
Damien Millerd7686fd2001-02-10 00:40:03 +11001490 case 'o':
Ben Lindstrom1e243242001-09-18 05:38:44 +00001491 addargs(&args, "-%c%s", ch, optarg);
Damien Millerd7686fd2001-02-10 00:40:03 +11001492 break;
1493 case '1':
Ben Lindstrom387c4722001-05-08 20:27:25 +00001494 sshver = 1;
Damien Millerd7686fd2001-02-10 00:40:03 +11001495 if (sftp_server == NULL)
1496 sftp_server = _PATH_SFTP_SERVER;
1497 break;
1498 case 's':
1499 sftp_server = optarg;
1500 break;
1501 case 'S':
1502 ssh_program = optarg;
Damien Miller3eec6b72006-01-31 21:49:27 +11001503 replacearg(&args, 0, "%s", ssh_program);
Damien Millerd7686fd2001-02-10 00:40:03 +11001504 break;
Ben Lindstrom562c26b2001-03-07 01:26:48 +00001505 case 'b':
Damien Miller44f75c12004-01-21 10:58:47 +11001506 if (batchmode)
1507 fatal("Batch file already specified.");
1508
1509 /* Allow "-" as stdin */
Darren Tuckerfc959702004-07-17 16:12:08 +10001510 if (strcmp(optarg, "-") != 0 &&
Damien Miller0dc1bef2005-07-17 17:22:45 +10001511 (infile = fopen(optarg, "r")) == NULL)
Damien Miller44f75c12004-01-21 10:58:47 +11001512 fatal("%s (%s).", strerror(errno), optarg);
Damien Miller62d57f62003-01-10 21:43:24 +11001513 showprogress = 0;
Damien Miller44f75c12004-01-21 10:58:47 +11001514 batchmode = 1;
Damien Miller64e8d442005-03-01 21:16:47 +11001515 addargs(&args, "-obatchmode yes");
Ben Lindstrom562c26b2001-03-07 01:26:48 +00001516 break;
Damien Millerd14ee1e2002-02-05 12:27:31 +11001517 case 'P':
1518 sftp_direct = optarg;
1519 break;
Damien Miller8829d362002-02-08 22:04:05 +11001520 case 'B':
1521 copy_buffer_len = strtol(optarg, &cp, 10);
1522 if (copy_buffer_len == 0 || *cp != '\0')
1523 fatal("Invalid buffer size \"%s\"", optarg);
1524 break;
Damien Miller16a13332002-02-13 14:03:56 +11001525 case 'R':
1526 num_requests = strtol(optarg, &cp, 10);
1527 if (num_requests == 0 || *cp != '\0')
Ben Lindstrom6328ab32002-03-22 02:54:23 +00001528 fatal("Invalid number of requests \"%s\"",
Damien Miller16a13332002-02-13 14:03:56 +11001529 optarg);
1530 break;
Damien Millerd7686fd2001-02-10 00:40:03 +11001531 case 'h':
1532 default:
Damien Miller33804262001-02-04 23:20:18 +11001533 usage();
1534 }
1535 }
1536
Damien Millerc0f27d82004-03-08 23:12:19 +11001537 if (!isatty(STDERR_FILENO))
1538 showprogress = 0;
1539
Ben Lindstrom2f3d52a2002-04-02 21:06:18 +00001540 log_init(argv[0], ll, SYSLOG_FACILITY_USER, 1);
1541
Damien Millerd14ee1e2002-02-05 12:27:31 +11001542 if (sftp_direct == NULL) {
1543 if (optind == argc || argc > (optind + 2))
1544 usage();
Damien Miller33804262001-02-04 23:20:18 +11001545
Damien Millerd14ee1e2002-02-05 12:27:31 +11001546 userhost = xstrdup(argv[optind]);
1547 file2 = argv[optind+1];
Ben Lindstrom63667f62001-04-13 00:00:14 +00001548
Ben Lindstromc276c122002-12-23 02:14:51 +00001549 if ((host = strrchr(userhost, '@')) == NULL)
Damien Millerd14ee1e2002-02-05 12:27:31 +11001550 host = userhost;
1551 else {
1552 *host++ = '\0';
1553 if (!userhost[0]) {
1554 fprintf(stderr, "Missing username\n");
1555 usage();
1556 }
1557 addargs(&args, "-l%s",userhost);
1558 }
1559
Damien Millerec692032004-01-27 21:22:00 +11001560 if ((cp = colon(host)) != NULL) {
1561 *cp++ = '\0';
1562 file1 = cp;
1563 }
1564
Damien Millerd14ee1e2002-02-05 12:27:31 +11001565 host = cleanhostname(host);
1566 if (!*host) {
1567 fprintf(stderr, "Missing hostname\n");
Damien Miller33804262001-02-04 23:20:18 +11001568 usage();
1569 }
Damien Millerd14ee1e2002-02-05 12:27:31 +11001570
Damien Millerd14ee1e2002-02-05 12:27:31 +11001571 addargs(&args, "-oProtocol %d", sshver);
1572
1573 /* no subsystem if the server-spec contains a '/' */
1574 if (sftp_server == NULL || strchr(sftp_server, '/') == NULL)
1575 addargs(&args, "-s");
1576
1577 addargs(&args, "%s", host);
Ben Lindstrom6328ab32002-03-22 02:54:23 +00001578 addargs(&args, "%s", (sftp_server != NULL ?
Damien Millerd14ee1e2002-02-05 12:27:31 +11001579 sftp_server : "sftp"));
Damien Millerd14ee1e2002-02-05 12:27:31 +11001580
Damien Miller44f75c12004-01-21 10:58:47 +11001581 if (!batchmode)
1582 fprintf(stderr, "Connecting to %s...\n", host);
Damien Millercc685c12003-06-04 22:51:38 +10001583 connect_to_server(ssh_program, args.list, &in, &out);
Damien Millerd14ee1e2002-02-05 12:27:31 +11001584 } else {
1585 args.list = NULL;
1586 addargs(&args, "sftp-server");
1587
Damien Miller44f75c12004-01-21 10:58:47 +11001588 if (!batchmode)
1589 fprintf(stderr, "Attaching to %s...\n", sftp_direct);
Damien Millercc685c12003-06-04 22:51:38 +10001590 connect_to_server(sftp_direct, args.list, &in, &out);
Damien Miller33804262001-02-04 23:20:18 +11001591 }
Damien Miller3eec6b72006-01-31 21:49:27 +11001592 freeargs(&args);
Damien Miller33804262001-02-04 23:20:18 +11001593
Damien Miller956f3fb2003-01-10 21:40:00 +11001594 err = interactive_loop(in, out, file1, file2);
Damien Miller33804262001-02-04 23:20:18 +11001595
Ben Lindstrom10b9bf92001-02-26 20:04:45 +00001596#if !defined(USE_PIPES)
Damien Miller37294fb2005-07-17 17:18:49 +10001597 shutdown(in, SHUT_RDWR);
1598 shutdown(out, SHUT_RDWR);
Ben Lindstrom10b9bf92001-02-26 20:04:45 +00001599#endif
1600
Damien Miller33804262001-02-04 23:20:18 +11001601 close(in);
1602 close(out);
Damien Miller44f75c12004-01-21 10:58:47 +11001603 if (batchmode)
Ben Lindstrom562c26b2001-03-07 01:26:48 +00001604 fclose(infile);
Damien Miller33804262001-02-04 23:20:18 +11001605
Ben Lindstrom47fd8112002-04-02 20:48:19 +00001606 while (waitpid(sshpid, NULL, 0) == -1)
1607 if (errno != EINTR)
1608 fatal("Couldn't wait for ssh process: %s",
1609 strerror(errno));
Damien Miller33804262001-02-04 23:20:18 +11001610
Damien Miller956f3fb2003-01-10 21:40:00 +11001611 exit(err == 0 ? 0 : 1);
Damien Miller33804262001-02-04 23:20:18 +11001612}