summaryrefslogtreecommitdiff
path: root/sftp-int.c
diff options
context:
space:
mode:
Diffstat (limited to 'sftp-int.c')
-rw-r--r--sftp-int.c1191
1 files changed, 0 insertions, 1191 deletions
diff --git a/sftp-int.c b/sftp-int.c
deleted file mode 100644
index c93eaabff..000000000
--- a/sftp-int.c
+++ /dev/null
@@ -1,1191 +0,0 @@
1/*
2 * Copyright (c) 2001,2002 Damien Miller. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 */
24
25/* XXX: recursive operations */
26
27#include "includes.h"
28RCSID("$OpenBSD: sftp-int.c,v 1.62 2003/08/25 08:13:09 fgsch Exp $");
29
30#include "buffer.h"
31#include "xmalloc.h"
32#include "log.h"
33#include "pathnames.h"
34
35#include "sftp.h"
36#include "sftp-common.h"
37#include "sftp-glob.h"
38#include "sftp-client.h"
39#include "sftp-int.h"
40
41/* File to read commands from */
42extern FILE *infile;
43
44/* Size of buffer used when copying files */
45extern size_t copy_buffer_len;
46
47/* Number of concurrent outstanding requests */
48extern int num_requests;
49
50/* This is set to 0 if the progressmeter is not desired. */
51int showprogress = 1;
52
53/* Seperators for interactive commands */
54#define WHITESPACE " \t\r\n"
55
56/* Define what type of ls view (0 - multi-column) */
57#define LONG_VIEW 1 /* Full view ala ls -l */
58#define SHORT_VIEW 2 /* Single row view ala ls -1 */
59
60/* Commands for interactive mode */
61#define I_CHDIR 1
62#define I_CHGRP 2
63#define I_CHMOD 3
64#define I_CHOWN 4
65#define I_GET 5
66#define I_HELP 6
67#define I_LCHDIR 7
68#define I_LLS 8
69#define I_LMKDIR 9
70#define I_LPWD 10
71#define I_LS 11
72#define I_LUMASK 12
73#define I_MKDIR 13
74#define I_PUT 14
75#define I_PWD 15
76#define I_QUIT 16
77#define I_RENAME 17
78#define I_RM 18
79#define I_RMDIR 19
80#define I_SHELL 20
81#define I_SYMLINK 21
82#define I_VERSION 22
83#define I_PROGRESS 23
84
85struct CMD {
86 const char *c;
87 const int n;
88};
89
90static const struct CMD cmds[] = {
91 { "bye", I_QUIT },
92 { "cd", I_CHDIR },
93 { "chdir", I_CHDIR },
94 { "chgrp", I_CHGRP },
95 { "chmod", I_CHMOD },
96 { "chown", I_CHOWN },
97 { "dir", I_LS },
98 { "exit", I_QUIT },
99 { "get", I_GET },
100 { "mget", I_GET },
101 { "help", I_HELP },
102 { "lcd", I_LCHDIR },
103 { "lchdir", I_LCHDIR },
104 { "lls", I_LLS },
105 { "lmkdir", I_LMKDIR },
106 { "ln", I_SYMLINK },
107 { "lpwd", I_LPWD },
108 { "ls", I_LS },
109 { "lumask", I_LUMASK },
110 { "mkdir", I_MKDIR },
111 { "progress", I_PROGRESS },
112 { "put", I_PUT },
113 { "mput", I_PUT },
114 { "pwd", I_PWD },
115 { "quit", I_QUIT },
116 { "rename", I_RENAME },
117 { "rm", I_RM },
118 { "rmdir", I_RMDIR },
119 { "symlink", I_SYMLINK },
120 { "version", I_VERSION },
121 { "!", I_SHELL },
122 { "?", I_HELP },
123 { NULL, -1}
124};
125
126static void
127help(void)
128{
129 printf("Available commands:\n");
130 printf("cd path Change remote directory to 'path'\n");
131 printf("lcd path Change local directory to 'path'\n");
132 printf("chgrp grp path Change group of file 'path' to 'grp'\n");
133 printf("chmod mode path Change permissions of file 'path' to 'mode'\n");
134 printf("chown own path Change owner of file 'path' to 'own'\n");
135 printf("help Display this help text\n");
136 printf("get remote-path [local-path] Download file\n");
137 printf("lls [ls-options [path]] Display local directory listing\n");
138 printf("ln oldpath newpath Symlink remote file\n");
139 printf("lmkdir path Create local directory\n");
140 printf("lpwd Print local working directory\n");
141 printf("ls [path] Display remote directory listing\n");
142 printf("lumask umask Set local umask to 'umask'\n");
143 printf("mkdir path Create remote directory\n");
144 printf("progress Toggle display of progress meter\n");
145 printf("put local-path [remote-path] Upload file\n");
146 printf("pwd Display remote working directory\n");
147 printf("exit Quit sftp\n");
148 printf("quit Quit sftp\n");
149 printf("rename oldpath newpath Rename remote file\n");
150 printf("rmdir path Remove remote directory\n");
151 printf("rm path Delete remote file\n");
152 printf("symlink oldpath newpath Symlink remote file\n");
153 printf("version Show SFTP version\n");
154 printf("!command Execute 'command' in local shell\n");
155 printf("! Escape to local shell\n");
156 printf("? Synonym for help\n");
157}
158
159static void
160local_do_shell(const char *args)
161{
162 int status;
163 char *shell;
164 pid_t pid;
165
166 if (!*args)
167 args = NULL;
168
169 if ((shell = getenv("SHELL")) == NULL)
170 shell = _PATH_BSHELL;
171
172 if ((pid = fork()) == -1)
173 fatal("Couldn't fork: %s", strerror(errno));
174
175 if (pid == 0) {
176 /* XXX: child has pipe fds to ssh subproc open - issue? */
177 if (args) {
178 debug3("Executing %s -c \"%s\"", shell, args);
179 execl(shell, shell, "-c", args, (char *)NULL);
180 } else {
181 debug3("Executing %s", shell);
182 execl(shell, shell, (char *)NULL);
183 }
184 fprintf(stderr, "Couldn't execute \"%s\": %s\n", shell,
185 strerror(errno));
186 _exit(1);
187 }
188 while (waitpid(pid, &status, 0) == -1)
189 if (errno != EINTR)
190 fatal("Couldn't wait for child: %s", strerror(errno));
191 if (!WIFEXITED(status))
192 error("Shell exited abormally");
193 else if (WEXITSTATUS(status))
194 error("Shell exited with status %d", WEXITSTATUS(status));
195}
196
197static void
198local_do_ls(const char *args)
199{
200 if (!args || !*args)
201 local_do_shell(_PATH_LS);
202 else {
203 int len = strlen(_PATH_LS " ") + strlen(args) + 1;
204 char *buf = xmalloc(len);
205
206 /* XXX: quoting - rip quoting code from ftp? */
207 snprintf(buf, len, _PATH_LS " %s", args);
208 local_do_shell(buf);
209 xfree(buf);
210 }
211}
212
213/* Strip one path (usually the pwd) from the start of another */
214static char *
215path_strip(char *path, char *strip)
216{
217 size_t len;
218
219 if (strip == NULL)
220 return (xstrdup(path));
221
222 len = strlen(strip);
223 if (strip != NULL && strncmp(path, strip, len) == 0) {
224 if (strip[len - 1] != '/' && path[len] == '/')
225 len++;
226 return (xstrdup(path + len));
227 }
228
229 return (xstrdup(path));
230}
231
232static char *
233path_append(char *p1, char *p2)
234{
235 char *ret;
236 int len = strlen(p1) + strlen(p2) + 2;
237
238 ret = xmalloc(len);
239 strlcpy(ret, p1, len);
240 if (p1[strlen(p1) - 1] != '/')
241 strlcat(ret, "/", len);
242 strlcat(ret, p2, len);
243
244 return(ret);
245}
246
247static char *
248make_absolute(char *p, char *pwd)
249{
250 char *abs;
251
252 /* Derelativise */
253 if (p && p[0] != '/') {
254 abs = path_append(pwd, p);
255 xfree(p);
256 return(abs);
257 } else
258 return(p);
259}
260
261static int
262infer_path(const char *p, char **ifp)
263{
264 char *cp;
265
266 cp = strrchr(p, '/');
267 if (cp == NULL) {
268 *ifp = xstrdup(p);
269 return(0);
270 }
271
272 if (!cp[1]) {
273 error("Invalid path");
274 return(-1);
275 }
276
277 *ifp = xstrdup(cp + 1);
278 return(0);
279}
280
281static int
282parse_getput_flags(const char **cpp, int *pflag)
283{
284 const char *cp = *cpp;
285
286 /* Check for flags */
287 if (cp[0] == '-' && cp[1] && strchr(WHITESPACE, cp[2])) {
288 switch (cp[1]) {
289 case 'p':
290 case 'P':
291 *pflag = 1;
292 break;
293 default:
294 error("Invalid flag -%c", cp[1]);
295 return(-1);
296 }
297 cp += 2;
298 *cpp = cp + strspn(cp, WHITESPACE);
299 }
300
301 return(0);
302}
303
304static int
305parse_ls_flags(const char **cpp, int *lflag)
306{
307 const char *cp = *cpp;
308
309 /* Check for flags */
310 if (cp++[0] == '-') {
311 for(; strchr(WHITESPACE, *cp) == NULL; cp++) {
312 switch (*cp) {
313 case 'l':
314 *lflag = LONG_VIEW;
315 break;
316 case '1':
317 *lflag = SHORT_VIEW;
318 break;
319 default:
320 error("Invalid flag -%c", *cp);
321 return(-1);
322 }
323 }
324 *cpp = cp + strspn(cp, WHITESPACE);
325 }
326
327 return(0);
328}
329
330static int
331get_pathname(const char **cpp, char **path)
332{
333 const char *cp = *cpp, *end;
334 char quot;
335 int i, j;
336
337 cp += strspn(cp, WHITESPACE);
338 if (!*cp) {
339 *cpp = cp;
340 *path = NULL;
341 return (0);
342 }
343
344 *path = xmalloc(strlen(cp) + 1);
345
346 /* Check for quoted filenames */
347 if (*cp == '\"' || *cp == '\'') {
348 quot = *cp++;
349
350 /* Search for terminating quote, unescape some chars */
351 for (i = j = 0; i <= strlen(cp); i++) {
352 if (cp[i] == quot) { /* Found quote */
353 (*path)[j] = '\0';
354 i++;
355 break;
356 }
357 if (cp[i] == '\0') { /* End of string */
358 error("Unterminated quote");
359 goto fail;
360 }
361 if (cp[i] == '\\') { /* Escaped characters */
362 i++;
363 if (cp[i] != '\'' && cp[i] != '\"' &&
364 cp[i] != '\\') {
365 error("Bad escaped character '\%c'",
366 cp[i]);
367 goto fail;
368 }
369 }
370 (*path)[j++] = cp[i];
371 }
372
373 if (j == 0) {
374 error("Empty quotes");
375 goto fail;
376 }
377 *cpp = cp + i + strspn(cp + i, WHITESPACE);
378 } else {
379 /* Read to end of filename */
380 end = strpbrk(cp, WHITESPACE);
381 if (end == NULL)
382 end = strchr(cp, '\0');
383 *cpp = end + strspn(end, WHITESPACE);
384
385 memcpy(*path, cp, end - cp);
386 (*path)[end - cp] = '\0';
387 }
388 return (0);
389
390 fail:
391 xfree(*path);
392 *path = NULL;
393 return (-1);
394}
395
396static int
397is_dir(char *path)
398{
399 struct stat sb;
400
401 /* XXX: report errors? */
402 if (stat(path, &sb) == -1)
403 return(0);
404
405 return(sb.st_mode & S_IFDIR);
406}
407
408static int
409is_reg(char *path)
410{
411 struct stat sb;
412
413 if (stat(path, &sb) == -1)
414 fatal("stat %s: %s", path, strerror(errno));
415
416 return(S_ISREG(sb.st_mode));
417}
418
419static int
420remote_is_dir(struct sftp_conn *conn, char *path)
421{
422 Attrib *a;
423
424 /* XXX: report errors? */
425 if ((a = do_stat(conn, path, 1)) == NULL)
426 return(0);
427 if (!(a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS))
428 return(0);
429 return(a->perm & S_IFDIR);
430}
431
432static int
433process_get(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag)
434{
435 char *abs_src = NULL;
436 char *abs_dst = NULL;
437 char *tmp;
438 glob_t g;
439 int err = 0;
440 int i;
441
442 abs_src = xstrdup(src);
443 abs_src = make_absolute(abs_src, pwd);
444
445 memset(&g, 0, sizeof(g));
446 debug3("Looking up %s", abs_src);
447 if (remote_glob(conn, abs_src, 0, NULL, &g)) {
448 error("File \"%s\" not found.", abs_src);
449 err = -1;
450 goto out;
451 }
452
453 /* If multiple matches, dst must be a directory or unspecified */
454 if (g.gl_matchc > 1 && dst && !is_dir(dst)) {
455 error("Multiple files match, but \"%s\" is not a directory",
456 dst);
457 err = -1;
458 goto out;
459 }
460
461 for (i = 0; g.gl_pathv[i]; i++) {
462 if (infer_path(g.gl_pathv[i], &tmp)) {
463 err = -1;
464 goto out;
465 }
466
467 if (g.gl_matchc == 1 && dst) {
468 /* If directory specified, append filename */
469 if (is_dir(dst)) {
470 if (infer_path(g.gl_pathv[0], &tmp)) {
471 err = 1;
472 goto out;
473 }
474 abs_dst = path_append(dst, tmp);
475 xfree(tmp);
476 } else
477 abs_dst = xstrdup(dst);
478 } else if (dst) {
479 abs_dst = path_append(dst, tmp);
480 xfree(tmp);
481 } else
482 abs_dst = tmp;
483
484 printf("Fetching %s to %s\n", g.gl_pathv[i], abs_dst);
485 if (do_download(conn, g.gl_pathv[i], abs_dst, pflag) == -1)
486 err = -1;
487 xfree(abs_dst);
488 abs_dst = NULL;
489 }
490
491out:
492 xfree(abs_src);
493 if (abs_dst)
494 xfree(abs_dst);
495 globfree(&g);
496 return(err);
497}
498
499static int
500process_put(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag)
501{
502 char *tmp_dst = NULL;
503 char *abs_dst = NULL;
504 char *tmp;
505 glob_t g;
506 int err = 0;
507 int i;
508
509 if (dst) {
510 tmp_dst = xstrdup(dst);
511 tmp_dst = make_absolute(tmp_dst, pwd);
512 }
513
514 memset(&g, 0, sizeof(g));
515 debug3("Looking up %s", src);
516 if (glob(src, 0, NULL, &g)) {
517 error("File \"%s\" not found.", src);
518 err = -1;
519 goto out;
520 }
521
522 /* If multiple matches, dst may be directory or unspecified */
523 if (g.gl_matchc > 1 && tmp_dst && !remote_is_dir(conn, tmp_dst)) {
524 error("Multiple files match, but \"%s\" is not a directory",
525 tmp_dst);
526 err = -1;
527 goto out;
528 }
529
530 for (i = 0; g.gl_pathv[i]; i++) {
531 if (!is_reg(g.gl_pathv[i])) {
532 error("skipping non-regular file %s",
533 g.gl_pathv[i]);
534 continue;
535 }
536 if (infer_path(g.gl_pathv[i], &tmp)) {
537 err = -1;
538 goto out;
539 }
540
541 if (g.gl_matchc == 1 && tmp_dst) {
542 /* If directory specified, append filename */
543 if (remote_is_dir(conn, tmp_dst)) {
544 if (infer_path(g.gl_pathv[0], &tmp)) {
545 err = 1;
546 goto out;
547 }
548 abs_dst = path_append(tmp_dst, tmp);
549 xfree(tmp);
550 } else
551 abs_dst = xstrdup(tmp_dst);
552
553 } else if (tmp_dst) {
554 abs_dst = path_append(tmp_dst, tmp);
555 xfree(tmp);
556 } else
557 abs_dst = make_absolute(tmp, pwd);
558
559 printf("Uploading %s to %s\n", g.gl_pathv[i], abs_dst);
560 if (do_upload(conn, g.gl_pathv[i], abs_dst, pflag) == -1)
561 err = -1;
562 }
563
564out:
565 if (abs_dst)
566 xfree(abs_dst);
567 if (tmp_dst)
568 xfree(tmp_dst);
569 globfree(&g);
570 return(err);
571}
572
573static int
574sdirent_comp(const void *aa, const void *bb)
575{
576 SFTP_DIRENT *a = *(SFTP_DIRENT **)aa;
577 SFTP_DIRENT *b = *(SFTP_DIRENT **)bb;
578
579 return (strcmp(a->filename, b->filename));
580}
581
582/* sftp ls.1 replacement for directories */
583static int
584do_ls_dir(struct sftp_conn *conn, char *path, char *strip_path, int lflag)
585{
586 int n, c = 1, colspace = 0, columns = 1;
587 SFTP_DIRENT **d;
588
589 if ((n = do_readdir(conn, path, &d)) != 0)
590 return (n);
591
592 if (!(lflag & SHORT_VIEW)) {
593 int m = 0, width = 80;
594 struct winsize ws;
595
596 /* Count entries for sort and find longest filename */
597 for (n = 0; d[n] != NULL; n++)
598 m = MAX(m, strlen(d[n]->filename));
599
600 if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1)
601 width = ws.ws_col;
602
603 columns = width / (m + 2);
604 columns = MAX(columns, 1);
605 colspace = width / columns;
606 }
607
608 qsort(d, n, sizeof(*d), sdirent_comp);
609
610 for (n = 0; d[n] != NULL; n++) {
611 char *tmp, *fname;
612
613 tmp = path_append(path, d[n]->filename);
614 fname = path_strip(tmp, strip_path);
615 xfree(tmp);
616
617 if (lflag & LONG_VIEW) {
618 char *lname;
619 struct stat sb;
620
621 memset(&sb, 0, sizeof(sb));
622 attrib_to_stat(&d[n]->a, &sb);
623 lname = ls_file(fname, &sb, 1);
624 printf("%s\n", lname);
625 xfree(lname);
626 } else {
627 printf("%-*s", colspace, fname);
628 if (c >= columns) {
629 printf("\n");
630 c = 1;
631 } else
632 c++;
633 }
634
635 xfree(fname);
636 }
637
638 if (!(lflag & LONG_VIEW) && (c != 1))
639 printf("\n");
640
641 free_sftp_dirents(d);
642 return (0);
643}
644
645/* sftp ls.1 replacement which handles path globs */
646static int
647do_globbed_ls(struct sftp_conn *conn, char *path, char *strip_path,
648 int lflag)
649{
650 glob_t g;
651 int i, c = 1, colspace = 0, columns = 1;
652 Attrib *a;
653
654 memset(&g, 0, sizeof(g));
655
656 if (remote_glob(conn, path, GLOB_MARK|GLOB_NOCHECK|GLOB_BRACE,
657 NULL, &g)) {
658 error("Can't ls: \"%s\" not found", path);
659 return (-1);
660 }
661
662 /*
663 * If the glob returns a single match, which is the same as the
664 * input glob, and it is a directory, then just list its contents
665 */
666 if (g.gl_pathc == 1 &&
667 strncmp(path, g.gl_pathv[0], strlen(g.gl_pathv[0]) - 1) == 0) {
668 if ((a = do_lstat(conn, path, 1)) == NULL) {
669 globfree(&g);
670 return (-1);
671 }
672 if ((a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) &&
673 S_ISDIR(a->perm)) {
674 globfree(&g);
675 return (do_ls_dir(conn, path, strip_path, lflag));
676 }
677 }
678
679 if (!(lflag & SHORT_VIEW)) {
680 int m = 0, width = 80;
681 struct winsize ws;
682
683 /* Count entries for sort and find longest filename */
684 for (i = 0; g.gl_pathv[i]; i++)
685 m = MAX(m, strlen(g.gl_pathv[i]));
686
687 if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1)
688 width = ws.ws_col;
689
690 columns = width / (m + 2);
691 columns = MAX(columns, 1);
692 colspace = width / columns;
693 }
694
695 for (i = 0; g.gl_pathv[i]; i++) {
696 char *fname;
697
698 fname = path_strip(g.gl_pathv[i], strip_path);
699
700 if (lflag & LONG_VIEW) {
701 char *lname;
702 struct stat sb;
703
704 /*
705 * XXX: this is slow - 1 roundtrip per path
706 * A solution to this is to fork glob() and
707 * build a sftp specific version which keeps the
708 * attribs (which currently get thrown away)
709 * that the server returns as well as the filenames.
710 */
711 memset(&sb, 0, sizeof(sb));
712 a = do_lstat(conn, g.gl_pathv[i], 1);
713 if (a != NULL)
714 attrib_to_stat(a, &sb);
715 lname = ls_file(fname, &sb, 1);
716 printf("%s\n", lname);
717 xfree(lname);
718 } else {
719 printf("%-*s", colspace, fname);
720 if (c >= columns) {
721 printf("\n");
722 c = 1;
723 } else
724 c++;
725 }
726 xfree(fname);
727 }
728
729 if (!(lflag & LONG_VIEW) && (c != 1))
730 printf("\n");
731
732 if (g.gl_pathc)
733 globfree(&g);
734
735 return (0);
736}
737
738static int
739parse_args(const char **cpp, int *pflag, int *lflag, int *iflag,
740 unsigned long *n_arg, char **path1, char **path2)
741{
742 const char *cmd, *cp = *cpp;
743 char *cp2;
744 int base = 0;
745 long l;
746 int i, cmdnum;
747
748 /* Skip leading whitespace */
749 cp = cp + strspn(cp, WHITESPACE);
750
751 /* Ignore blank lines and lines which begin with comment '#' char */
752 if (*cp == '\0' || *cp == '#')
753 return (0);
754
755 /* Check for leading '-' (disable error processing) */
756 *iflag = 0;
757 if (*cp == '-') {
758 *iflag = 1;
759 cp++;
760 }
761
762 /* Figure out which command we have */
763 for (i = 0; cmds[i].c; i++) {
764 int cmdlen = strlen(cmds[i].c);
765
766 /* Check for command followed by whitespace */
767 if (!strncasecmp(cp, cmds[i].c, cmdlen) &&
768 strchr(WHITESPACE, cp[cmdlen])) {
769 cp += cmdlen;
770 cp = cp + strspn(cp, WHITESPACE);
771 break;
772 }
773 }
774 cmdnum = cmds[i].n;
775 cmd = cmds[i].c;
776
777 /* Special case */
778 if (*cp == '!') {
779 cp++;
780 cmdnum = I_SHELL;
781 } else if (cmdnum == -1) {
782 error("Invalid command.");
783 return (-1);
784 }
785
786 /* Get arguments and parse flags */
787 *lflag = *pflag = *n_arg = 0;
788 *path1 = *path2 = NULL;
789 switch (cmdnum) {
790 case I_GET:
791 case I_PUT:
792 if (parse_getput_flags(&cp, pflag))
793 return(-1);
794 /* Get first pathname (mandatory) */
795 if (get_pathname(&cp, path1))
796 return(-1);
797 if (*path1 == NULL) {
798 error("You must specify at least one path after a "
799 "%s command.", cmd);
800 return(-1);
801 }
802 /* Try to get second pathname (optional) */
803 if (get_pathname(&cp, path2))
804 return(-1);
805 break;
806 case I_RENAME:
807 case I_SYMLINK:
808 if (get_pathname(&cp, path1))
809 return(-1);
810 if (get_pathname(&cp, path2))
811 return(-1);
812 if (!*path1 || !*path2) {
813 error("You must specify two paths after a %s "
814 "command.", cmd);
815 return(-1);
816 }
817 break;
818 case I_RM:
819 case I_MKDIR:
820 case I_RMDIR:
821 case I_CHDIR:
822 case I_LCHDIR:
823 case I_LMKDIR:
824 /* Get pathname (mandatory) */
825 if (get_pathname(&cp, path1))
826 return(-1);
827 if (*path1 == NULL) {
828 error("You must specify a path after a %s command.",
829 cmd);
830 return(-1);
831 }
832 break;
833 case I_LS:
834 if (parse_ls_flags(&cp, lflag))
835 return(-1);
836 /* Path is optional */
837 if (get_pathname(&cp, path1))
838 return(-1);
839 break;
840 case I_LLS:
841 case I_SHELL:
842 /* Uses the rest of the line */
843 break;
844 case I_LUMASK:
845 base = 8;
846 case I_CHMOD:
847 base = 8;
848 case I_CHOWN:
849 case I_CHGRP:
850 /* Get numeric arg (mandatory) */
851 l = strtol(cp, &cp2, base);
852 if (cp2 == cp || ((l == LONG_MIN || l == LONG_MAX) &&
853 errno == ERANGE) || l < 0) {
854 error("You must supply a numeric argument "
855 "to the %s command.", cmd);
856 return(-1);
857 }
858 cp = cp2;
859 *n_arg = l;
860 if (cmdnum == I_LUMASK && strchr(WHITESPACE, *cp))
861 break;
862 if (cmdnum == I_LUMASK || !strchr(WHITESPACE, *cp)) {
863 error("You must supply a numeric argument "
864 "to the %s command.", cmd);
865 return(-1);
866 }
867 cp += strspn(cp, WHITESPACE);
868
869 /* Get pathname (mandatory) */
870 if (get_pathname(&cp, path1))
871 return(-1);
872 if (*path1 == NULL) {
873 error("You must specify a path after a %s command.",
874 cmd);
875 return(-1);
876 }
877 break;
878 case I_QUIT:
879 case I_PWD:
880 case I_LPWD:
881 case I_HELP:
882 case I_VERSION:
883 case I_PROGRESS:
884 break;
885 default:
886 fatal("Command not implemented");
887 }
888
889 *cpp = cp;
890 return(cmdnum);
891}
892
893static int
894parse_dispatch_command(struct sftp_conn *conn, const char *cmd, char **pwd,
895 int err_abort)
896{
897 char *path1, *path2, *tmp;
898 int pflag, lflag, iflag, cmdnum, i;
899 unsigned long n_arg;
900 Attrib a, *aa;
901 char path_buf[MAXPATHLEN];
902 int err = 0;
903 glob_t g;
904
905 path1 = path2 = NULL;
906 cmdnum = parse_args(&cmd, &pflag, &lflag, &iflag, &n_arg,
907 &path1, &path2);
908
909 if (iflag != 0)
910 err_abort = 0;
911
912 memset(&g, 0, sizeof(g));
913
914 /* Perform command */
915 switch (cmdnum) {
916 case 0:
917 /* Blank line */
918 break;
919 case -1:
920 /* Unrecognized command */
921 err = -1;
922 break;
923 case I_GET:
924 err = process_get(conn, path1, path2, *pwd, pflag);
925 break;
926 case I_PUT:
927 err = process_put(conn, path1, path2, *pwd, pflag);
928 break;
929 case I_RENAME:
930 path1 = make_absolute(path1, *pwd);
931 path2 = make_absolute(path2, *pwd);
932 err = do_rename(conn, path1, path2);
933 break;
934 case I_SYMLINK:
935 path2 = make_absolute(path2, *pwd);
936 err = do_symlink(conn, path1, path2);
937 break;
938 case I_RM:
939 path1 = make_absolute(path1, *pwd);
940 remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
941 for (i = 0; g.gl_pathv[i]; i++) {
942 printf("Removing %s\n", g.gl_pathv[i]);
943 err = do_rm(conn, g.gl_pathv[i]);
944 if (err != 0 && err_abort)
945 break;
946 }
947 break;
948 case I_MKDIR:
949 path1 = make_absolute(path1, *pwd);
950 attrib_clear(&a);
951 a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
952 a.perm = 0777;
953 err = do_mkdir(conn, path1, &a);
954 break;
955 case I_RMDIR:
956 path1 = make_absolute(path1, *pwd);
957 err = do_rmdir(conn, path1);
958 break;
959 case I_CHDIR:
960 path1 = make_absolute(path1, *pwd);
961 if ((tmp = do_realpath(conn, path1)) == NULL) {
962 err = 1;
963 break;
964 }
965 if ((aa = do_stat(conn, tmp, 0)) == NULL) {
966 xfree(tmp);
967 err = 1;
968 break;
969 }
970 if (!(aa->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)) {
971 error("Can't change directory: Can't check target");
972 xfree(tmp);
973 err = 1;
974 break;
975 }
976 if (!S_ISDIR(aa->perm)) {
977 error("Can't change directory: \"%s\" is not "
978 "a directory", tmp);
979 xfree(tmp);
980 err = 1;
981 break;
982 }
983 xfree(*pwd);
984 *pwd = tmp;
985 break;
986 case I_LS:
987 if (!path1) {
988 do_globbed_ls(conn, *pwd, *pwd, lflag);
989 break;
990 }
991
992 /* Strip pwd off beginning of non-absolute paths */
993 tmp = NULL;
994 if (*path1 != '/')
995 tmp = *pwd;
996
997 path1 = make_absolute(path1, *pwd);
998 err = do_globbed_ls(conn, path1, tmp, lflag);
999 break;
1000 case I_LCHDIR:
1001 if (chdir(path1) == -1) {
1002 error("Couldn't change local directory to "
1003 "\"%s\": %s", path1, strerror(errno));
1004 err = 1;
1005 }
1006 break;
1007 case I_LMKDIR:
1008 if (mkdir(path1, 0777) == -1) {
1009 error("Couldn't create local directory "
1010 "\"%s\": %s", path1, strerror(errno));
1011 err = 1;
1012 }
1013 break;
1014 case I_LLS:
1015 local_do_ls(cmd);
1016 break;
1017 case I_SHELL:
1018 local_do_shell(cmd);
1019 break;
1020 case I_LUMASK:
1021 umask(n_arg);
1022 printf("Local umask: %03lo\n", n_arg);
1023 break;
1024 case I_CHMOD:
1025 path1 = make_absolute(path1, *pwd);
1026 attrib_clear(&a);
1027 a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
1028 a.perm = n_arg;
1029 remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
1030 for (i = 0; g.gl_pathv[i]; i++) {
1031 printf("Changing mode on %s\n", g.gl_pathv[i]);
1032 err = do_setstat(conn, g.gl_pathv[i], &a);
1033 if (err != 0 && err_abort)
1034 break;
1035 }
1036 break;
1037 case I_CHOWN:
1038 case I_CHGRP:
1039 path1 = make_absolute(path1, *pwd);
1040 remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
1041 for (i = 0; g.gl_pathv[i]; i++) {
1042 if (!(aa = do_stat(conn, g.gl_pathv[i], 0))) {
1043 if (err != 0 && err_abort)
1044 break;
1045 else
1046 continue;
1047 }
1048 if (!(aa->flags & SSH2_FILEXFER_ATTR_UIDGID)) {
1049 error("Can't get current ownership of "
1050 "remote file \"%s\"", g.gl_pathv[i]);
1051 if (err != 0 && err_abort)
1052 break;
1053 else
1054 continue;
1055 }
1056 aa->flags &= SSH2_FILEXFER_ATTR_UIDGID;
1057 if (cmdnum == I_CHOWN) {
1058 printf("Changing owner on %s\n", g.gl_pathv[i]);
1059 aa->uid = n_arg;
1060 } else {
1061 printf("Changing group on %s\n", g.gl_pathv[i]);
1062 aa->gid = n_arg;
1063 }
1064 err = do_setstat(conn, g.gl_pathv[i], aa);
1065 if (err != 0 && err_abort)
1066 break;
1067 }
1068 break;
1069 case I_PWD:
1070 printf("Remote working directory: %s\n", *pwd);
1071 break;
1072 case I_LPWD:
1073 if (!getcwd(path_buf, sizeof(path_buf))) {
1074 error("Couldn't get local cwd: %s", strerror(errno));
1075 err = -1;
1076 break;
1077 }
1078 printf("Local working directory: %s\n", path_buf);
1079 break;
1080 case I_QUIT:
1081 /* Processed below */
1082 break;
1083 case I_HELP:
1084 help();
1085 break;
1086 case I_VERSION:
1087 printf("SFTP protocol version %u\n", sftp_proto_version(conn));
1088 break;
1089 case I_PROGRESS:
1090 showprogress = !showprogress;
1091 if (showprogress)
1092 printf("Progress meter enabled\n");
1093 else
1094 printf("Progress meter disabled\n");
1095 break;
1096 default:
1097 fatal("%d is not implemented", cmdnum);
1098 }
1099
1100 if (g.gl_pathc)
1101 globfree(&g);
1102 if (path1)
1103 xfree(path1);
1104 if (path2)
1105 xfree(path2);
1106
1107 /* If an unignored error occurs in batch mode we should abort. */
1108 if (err_abort && err != 0)
1109 return (-1);
1110 else if (cmdnum == I_QUIT)
1111 return (1);
1112
1113 return (0);
1114}
1115
1116int
1117interactive_loop(int fd_in, int fd_out, char *file1, char *file2)
1118{
1119 char *pwd;
1120 char *dir = NULL;
1121 char cmd[2048];
1122 struct sftp_conn *conn;
1123 int err;
1124
1125 conn = do_init(fd_in, fd_out, copy_buffer_len, num_requests);
1126 if (conn == NULL)
1127 fatal("Couldn't initialise connection to server");
1128
1129 pwd = do_realpath(conn, ".");
1130 if (pwd == NULL)
1131 fatal("Need cwd");
1132
1133 if (file1 != NULL) {
1134 dir = xstrdup(file1);
1135 dir = make_absolute(dir, pwd);
1136
1137 if (remote_is_dir(conn, dir) && file2 == NULL) {
1138 printf("Changing to: %s\n", dir);
1139 snprintf(cmd, sizeof cmd, "cd \"%s\"", dir);
1140 if (parse_dispatch_command(conn, cmd, &pwd, 1) != 0)
1141 return (-1);
1142 } else {
1143 if (file2 == NULL)
1144 snprintf(cmd, sizeof cmd, "get %s", dir);
1145 else
1146 snprintf(cmd, sizeof cmd, "get %s %s", dir,
1147 file2);
1148
1149 err = parse_dispatch_command(conn, cmd, &pwd, 1);
1150 xfree(dir);
1151 xfree(pwd);
1152 return (err);
1153 }
1154 xfree(dir);
1155 }
1156
1157#if HAVE_SETVBUF
1158 setvbuf(stdout, NULL, _IOLBF, 0);
1159 setvbuf(infile, NULL, _IOLBF, 0);
1160#else
1161 setlinebuf(stdout);
1162 setlinebuf(infile);
1163#endif
1164
1165 err = 0;
1166 for (;;) {
1167 char *cp;
1168
1169 printf("sftp> ");
1170
1171 /* XXX: use libedit */
1172 if (fgets(cmd, sizeof(cmd), infile) == NULL) {
1173 printf("\n");
1174 break;
1175 } else if (infile != stdin) /* Bluff typing */
1176 printf("%s", cmd);
1177
1178 cp = strrchr(cmd, '\n');
1179 if (cp)
1180 *cp = '\0';
1181
1182 err = parse_dispatch_command(conn, cmd, &pwd, infile != stdin);
1183 if (err != 0)
1184 break;
1185 }
1186 xfree(pwd);
1187
1188 /* err == 1 signifies normal "quit" exit */
1189 return (err >= 0 ? 0 : -1);
1190}
1191
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-10 23:14:31 +0000