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1.90 ! stevesk 1: /* $OpenBSD: sftp.c,v 1.89 2006/07/26 13:57:17 stevesk Exp $ */
1.1 djm 2: /*
1.42 djm 3: * Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org>
1.1 djm 4: *
1.42 djm 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.
1.1 djm 8: *
1.42 djm 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.
1.1 djm 16: */
17:
18: #include "includes.h"
19:
1.72 stevesk 20: #include <sys/ioctl.h>
1.73 stevesk 21: #include <sys/types.h>
22: #include <sys/wait.h>
1.75 stevesk 23: #include <sys/stat.h>
1.83 stevesk 24: #include <sys/socket.h>
1.88 stevesk 25: #include <sys/param.h>
1.44 djm 26:
1.85 stevesk 27: #include <errno.h>
1.44 djm 28: #include <glob.h>
1.57 djm 29: #include <histedit.h>
1.71 stevesk 30: #include <paths.h>
1.74 stevesk 31: #include <signal.h>
1.89 stevesk 32: #include <stdlib.h>
1.90 ! stevesk 33: #include <stdio.h>
1.87 stevesk 34: #include <string.h>
1.86 stevesk 35: #include <unistd.h>
1.1 djm 36:
37: #include "xmalloc.h"
38: #include "log.h"
39: #include "pathnames.h"
1.16 mouring 40: #include "misc.h"
1.1 djm 41:
42: #include "sftp.h"
43: #include "sftp-common.h"
44: #include "sftp-client.h"
1.43 djm 45:
1.44 djm 46: /* File to read commands from */
47: FILE* infile;
1.15 mouring 48:
1.44 djm 49: /* Are we in batchfile mode? */
1.39 djm 50: int batchmode = 0;
1.44 djm 51:
52: /* Size of buffer used when copying files */
1.24 djm 53: size_t copy_buffer_len = 32768;
1.44 djm 54:
55: /* Number of concurrent outstanding requests */
1.26 djm 56: size_t num_requests = 16;
1.44 djm 57:
58: /* PID of ssh transport process */
1.36 djm 59: static pid_t sshpid = -1;
1.7 markus 60:
1.44 djm 61: /* This is set to 0 if the progressmeter is not desired. */
1.45 djm 62: int showprogress = 1;
1.44 djm 63:
1.46 djm 64: /* SIGINT received during command processing */
65: volatile sig_atomic_t interrupted = 0;
66:
1.52 djm 67: /* I wish qsort() took a separate ctx for the comparison function...*/
68: int sort_flag;
69:
1.44 djm 70: int remote_glob(struct sftp_conn *, const char *, int,
71: int (*)(const char *, int), glob_t *); /* proto for sftp-glob.c */
72:
73: /* Separators for interactive commands */
74: #define WHITESPACE " \t\r\n"
75:
1.52 djm 76: /* ls flags */
1.53 djm 77: #define LS_LONG_VIEW 0x01 /* Full view ala ls -l */
78: #define LS_SHORT_VIEW 0x02 /* Single row view ala ls -1 */
79: #define LS_NUMERIC_VIEW 0x04 /* Long view with numeric uid/gid */
80: #define LS_NAME_SORT 0x08 /* Sort by name (default) */
81: #define LS_TIME_SORT 0x10 /* Sort by mtime */
82: #define LS_SIZE_SORT 0x20 /* Sort by file size */
83: #define LS_REVERSE_SORT 0x40 /* Reverse sort order */
1.54 djm 84: #define LS_SHOW_ALL 0x80 /* Don't skip filenames starting with '.' */
1.52 djm 85:
1.53 djm 86: #define VIEW_FLAGS (LS_LONG_VIEW|LS_SHORT_VIEW|LS_NUMERIC_VIEW)
87: #define SORT_FLAGS (LS_NAME_SORT|LS_TIME_SORT|LS_SIZE_SORT)
1.44 djm 88:
89: /* Commands for interactive mode */
90: #define I_CHDIR 1
91: #define I_CHGRP 2
92: #define I_CHMOD 3
93: #define I_CHOWN 4
94: #define I_GET 5
95: #define I_HELP 6
96: #define I_LCHDIR 7
97: #define I_LLS 8
98: #define I_LMKDIR 9
99: #define I_LPWD 10
100: #define I_LS 11
101: #define I_LUMASK 12
102: #define I_MKDIR 13
103: #define I_PUT 14
104: #define I_PWD 15
105: #define I_QUIT 16
106: #define I_RENAME 17
107: #define I_RM 18
108: #define I_RMDIR 19
109: #define I_SHELL 20
110: #define I_SYMLINK 21
111: #define I_VERSION 22
112: #define I_PROGRESS 23
113:
114: struct CMD {
115: const char *c;
116: const int n;
117: };
118:
119: static const struct CMD cmds[] = {
120: { "bye", I_QUIT },
121: { "cd", I_CHDIR },
122: { "chdir", I_CHDIR },
123: { "chgrp", I_CHGRP },
124: { "chmod", I_CHMOD },
125: { "chown", I_CHOWN },
126: { "dir", I_LS },
127: { "exit", I_QUIT },
128: { "get", I_GET },
129: { "mget", I_GET },
130: { "help", I_HELP },
131: { "lcd", I_LCHDIR },
132: { "lchdir", I_LCHDIR },
133: { "lls", I_LLS },
134: { "lmkdir", I_LMKDIR },
135: { "ln", I_SYMLINK },
136: { "lpwd", I_LPWD },
137: { "ls", I_LS },
138: { "lumask", I_LUMASK },
139: { "mkdir", I_MKDIR },
140: { "progress", I_PROGRESS },
141: { "put", I_PUT },
142: { "mput", I_PUT },
143: { "pwd", I_PWD },
144: { "quit", I_QUIT },
145: { "rename", I_RENAME },
146: { "rm", I_RM },
147: { "rmdir", I_RMDIR },
148: { "symlink", I_SYMLINK },
149: { "version", I_VERSION },
150: { "!", I_SHELL },
151: { "?", I_HELP },
152: { NULL, -1}
153: };
154:
155: int interactive_loop(int fd_in, int fd_out, char *file1, char *file2);
156:
157: static void
1.46 djm 158: killchild(int signo)
159: {
1.61 dtucker 160: if (sshpid > 1) {
1.46 djm 161: kill(sshpid, SIGTERM);
1.61 dtucker 162: waitpid(sshpid, NULL, 0);
163: }
1.46 djm 164:
165: _exit(1);
166: }
167:
168: static void
169: cmd_interrupt(int signo)
170: {
171: const char msg[] = "\rInterrupt \n";
1.59 djm 172: int olderrno = errno;
1.46 djm 173:
174: write(STDERR_FILENO, msg, sizeof(msg) - 1);
175: interrupted = 1;
1.59 djm 176: errno = olderrno;
1.46 djm 177: }
178:
179: static void
1.44 djm 180: help(void)
181: {
182: printf("Available commands:\n");
183: printf("cd path Change remote directory to 'path'\n");
184: printf("lcd path Change local directory to 'path'\n");
185: printf("chgrp grp path Change group of file 'path' to 'grp'\n");
186: printf("chmod mode path Change permissions of file 'path' to 'mode'\n");
187: printf("chown own path Change owner of file 'path' to 'own'\n");
188: printf("help Display this help text\n");
189: printf("get remote-path [local-path] Download file\n");
190: printf("lls [ls-options [path]] Display local directory listing\n");
191: printf("ln oldpath newpath Symlink remote file\n");
192: printf("lmkdir path Create local directory\n");
193: printf("lpwd Print local working directory\n");
194: printf("ls [path] Display remote directory listing\n");
195: printf("lumask umask Set local umask to 'umask'\n");
196: printf("mkdir path Create remote directory\n");
197: printf("progress Toggle display of progress meter\n");
198: printf("put local-path [remote-path] Upload file\n");
199: printf("pwd Display remote working directory\n");
200: printf("exit Quit sftp\n");
201: printf("quit Quit sftp\n");
202: printf("rename oldpath newpath Rename remote file\n");
203: printf("rmdir path Remove remote directory\n");
204: printf("rm path Delete remote file\n");
205: printf("symlink oldpath newpath Symlink remote file\n");
206: printf("version Show SFTP version\n");
207: printf("!command Execute 'command' in local shell\n");
208: printf("! Escape to local shell\n");
209: printf("? Synonym for help\n");
210: }
211:
212: static void
213: local_do_shell(const char *args)
214: {
215: int status;
216: char *shell;
217: pid_t pid;
218:
219: if (!*args)
220: args = NULL;
221:
222: if ((shell = getenv("SHELL")) == NULL)
223: shell = _PATH_BSHELL;
224:
225: if ((pid = fork()) == -1)
226: fatal("Couldn't fork: %s", strerror(errno));
227:
228: if (pid == 0) {
229: /* XXX: child has pipe fds to ssh subproc open - issue? */
230: if (args) {
231: debug3("Executing %s -c \"%s\"", shell, args);
232: execl(shell, shell, "-c", args, (char *)NULL);
233: } else {
234: debug3("Executing %s", shell);
235: execl(shell, shell, (char *)NULL);
236: }
237: fprintf(stderr, "Couldn't execute \"%s\": %s\n", shell,
238: strerror(errno));
239: _exit(1);
240: }
241: while (waitpid(pid, &status, 0) == -1)
242: if (errno != EINTR)
243: fatal("Couldn't wait for child: %s", strerror(errno));
244: if (!WIFEXITED(status))
1.78 djm 245: error("Shell exited abnormally");
1.44 djm 246: else if (WEXITSTATUS(status))
247: error("Shell exited with status %d", WEXITSTATUS(status));
248: }
249:
250: static void
251: local_do_ls(const char *args)
252: {
253: if (!args || !*args)
254: local_do_shell(_PATH_LS);
255: else {
256: int len = strlen(_PATH_LS " ") + strlen(args) + 1;
257: char *buf = xmalloc(len);
258:
259: /* XXX: quoting - rip quoting code from ftp? */
260: snprintf(buf, len, _PATH_LS " %s", args);
261: local_do_shell(buf);
262: xfree(buf);
263: }
264: }
265:
266: /* Strip one path (usually the pwd) from the start of another */
267: static char *
268: path_strip(char *path, char *strip)
269: {
270: size_t len;
271:
272: if (strip == NULL)
273: return (xstrdup(path));
274:
275: len = strlen(strip);
1.59 djm 276: if (strncmp(path, strip, len) == 0) {
1.44 djm 277: if (strip[len - 1] != '/' && path[len] == '/')
278: len++;
279: return (xstrdup(path + len));
280: }
281:
282: return (xstrdup(path));
283: }
284:
285: static char *
286: path_append(char *p1, char *p2)
287: {
288: char *ret;
289: int len = strlen(p1) + strlen(p2) + 2;
290:
291: ret = xmalloc(len);
292: strlcpy(ret, p1, len);
293: if (p1[strlen(p1) - 1] != '/')
294: strlcat(ret, "/", len);
295: strlcat(ret, p2, len);
296:
297: return(ret);
298: }
299:
300: static char *
301: make_absolute(char *p, char *pwd)
302: {
1.51 avsm 303: char *abs_str;
1.44 djm 304:
305: /* Derelativise */
306: if (p && p[0] != '/') {
1.51 avsm 307: abs_str = path_append(pwd, p);
1.44 djm 308: xfree(p);
1.51 avsm 309: return(abs_str);
1.44 djm 310: } else
311: return(p);
312: }
313:
314: static int
315: infer_path(const char *p, char **ifp)
316: {
317: char *cp;
318:
319: cp = strrchr(p, '/');
320: if (cp == NULL) {
321: *ifp = xstrdup(p);
322: return(0);
323: }
324:
325: if (!cp[1]) {
326: error("Invalid path");
327: return(-1);
328: }
329:
330: *ifp = xstrdup(cp + 1);
331: return(0);
332: }
333:
334: static int
335: parse_getput_flags(const char **cpp, int *pflag)
336: {
337: const char *cp = *cpp;
338:
339: /* Check for flags */
340: if (cp[0] == '-' && cp[1] && strchr(WHITESPACE, cp[2])) {
341: switch (cp[1]) {
342: case 'p':
343: case 'P':
344: *pflag = 1;
345: break;
346: default:
347: error("Invalid flag -%c", cp[1]);
348: return(-1);
349: }
350: cp += 2;
351: *cpp = cp + strspn(cp, WHITESPACE);
352: }
353:
354: return(0);
355: }
356:
357: static int
358: parse_ls_flags(const char **cpp, int *lflag)
359: {
360: const char *cp = *cpp;
361:
1.52 djm 362: /* Defaults */
1.53 djm 363: *lflag = LS_NAME_SORT;
1.52 djm 364:
1.44 djm 365: /* Check for flags */
366: if (cp++[0] == '-') {
1.63 deraadt 367: for (; strchr(WHITESPACE, *cp) == NULL; cp++) {
1.44 djm 368: switch (*cp) {
369: case 'l':
1.50 djm 370: *lflag &= ~VIEW_FLAGS;
1.53 djm 371: *lflag |= LS_LONG_VIEW;
1.44 djm 372: break;
373: case '1':
1.50 djm 374: *lflag &= ~VIEW_FLAGS;
1.53 djm 375: *lflag |= LS_SHORT_VIEW;
1.50 djm 376: break;
377: case 'n':
378: *lflag &= ~VIEW_FLAGS;
1.53 djm 379: *lflag |= LS_NUMERIC_VIEW|LS_LONG_VIEW;
1.44 djm 380: break;
1.52 djm 381: case 'S':
382: *lflag &= ~SORT_FLAGS;
1.53 djm 383: *lflag |= LS_SIZE_SORT;
1.52 djm 384: break;
385: case 't':
386: *lflag &= ~SORT_FLAGS;
1.53 djm 387: *lflag |= LS_TIME_SORT;
1.52 djm 388: break;
389: case 'r':
1.53 djm 390: *lflag |= LS_REVERSE_SORT;
1.52 djm 391: break;
392: case 'f':
393: *lflag &= ~SORT_FLAGS;
394: break;
1.54 djm 395: case 'a':
396: *lflag |= LS_SHOW_ALL;
397: break;
1.44 djm 398: default:
399: error("Invalid flag -%c", *cp);
400: return(-1);
401: }
402: }
403: *cpp = cp + strspn(cp, WHITESPACE);
404: }
405:
406: return(0);
407: }
408:
409: static int
410: get_pathname(const char **cpp, char **path)
411: {
412: const char *cp = *cpp, *end;
413: char quot;
1.64 djm 414: u_int i, j;
1.44 djm 415:
416: cp += strspn(cp, WHITESPACE);
417: if (!*cp) {
418: *cpp = cp;
419: *path = NULL;
420: return (0);
421: }
422:
423: *path = xmalloc(strlen(cp) + 1);
424:
425: /* Check for quoted filenames */
426: if (*cp == '\"' || *cp == '\'') {
427: quot = *cp++;
428:
429: /* Search for terminating quote, unescape some chars */
430: for (i = j = 0; i <= strlen(cp); i++) {
431: if (cp[i] == quot) { /* Found quote */
432: i++;
433: (*path)[j] = '\0';
434: break;
435: }
436: if (cp[i] == '\0') { /* End of string */
437: error("Unterminated quote");
438: goto fail;
439: }
440: if (cp[i] == '\\') { /* Escaped characters */
441: i++;
442: if (cp[i] != '\'' && cp[i] != '\"' &&
443: cp[i] != '\\') {
1.55 djm 444: error("Bad escaped character '\\%c'",
1.44 djm 445: cp[i]);
446: goto fail;
447: }
448: }
449: (*path)[j++] = cp[i];
450: }
451:
452: if (j == 0) {
453: error("Empty quotes");
454: goto fail;
455: }
456: *cpp = cp + i + strspn(cp + i, WHITESPACE);
457: } else {
458: /* Read to end of filename */
459: end = strpbrk(cp, WHITESPACE);
460: if (end == NULL)
461: end = strchr(cp, '\0');
462: *cpp = end + strspn(end, WHITESPACE);
463:
464: memcpy(*path, cp, end - cp);
465: (*path)[end - cp] = '\0';
466: }
467: return (0);
468:
469: fail:
470: xfree(*path);
471: *path = NULL;
472: return (-1);
473: }
474:
475: static int
476: is_dir(char *path)
477: {
478: struct stat sb;
479:
480: /* XXX: report errors? */
481: if (stat(path, &sb) == -1)
482: return(0);
483:
484: return(sb.st_mode & S_IFDIR);
485: }
486:
487: static int
488: is_reg(char *path)
489: {
490: struct stat sb;
491:
492: if (stat(path, &sb) == -1)
493: fatal("stat %s: %s", path, strerror(errno));
494:
495: return(S_ISREG(sb.st_mode));
496: }
497:
498: static int
499: remote_is_dir(struct sftp_conn *conn, char *path)
500: {
501: Attrib *a;
502:
503: /* XXX: report errors? */
504: if ((a = do_stat(conn, path, 1)) == NULL)
505: return(0);
506: if (!(a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS))
507: return(0);
508: return(a->perm & S_IFDIR);
509: }
510:
511: static int
512: process_get(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag)
513: {
514: char *abs_src = NULL;
515: char *abs_dst = NULL;
516: char *tmp;
517: glob_t g;
518: int err = 0;
519: int i;
520:
521: abs_src = xstrdup(src);
522: abs_src = make_absolute(abs_src, pwd);
523:
524: memset(&g, 0, sizeof(g));
525: debug3("Looking up %s", abs_src);
526: if (remote_glob(conn, abs_src, 0, NULL, &g)) {
527: error("File \"%s\" not found.", abs_src);
528: err = -1;
529: goto out;
530: }
531:
532: /* If multiple matches, dst must be a directory or unspecified */
533: if (g.gl_matchc > 1 && dst && !is_dir(dst)) {
534: error("Multiple files match, but \"%s\" is not a directory",
535: dst);
536: err = -1;
537: goto out;
538: }
539:
1.46 djm 540: for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1.44 djm 541: if (infer_path(g.gl_pathv[i], &tmp)) {
542: err = -1;
543: goto out;
544: }
545:
546: if (g.gl_matchc == 1 && dst) {
547: /* If directory specified, append filename */
1.82 markus 548: xfree(tmp);
1.44 djm 549: if (is_dir(dst)) {
550: if (infer_path(g.gl_pathv[0], &tmp)) {
551: err = 1;
552: goto out;
553: }
554: abs_dst = path_append(dst, tmp);
555: xfree(tmp);
556: } else
557: abs_dst = xstrdup(dst);
558: } else if (dst) {
559: abs_dst = path_append(dst, tmp);
560: xfree(tmp);
561: } else
562: abs_dst = tmp;
563:
564: printf("Fetching %s to %s\n", g.gl_pathv[i], abs_dst);
565: if (do_download(conn, g.gl_pathv[i], abs_dst, pflag) == -1)
566: err = -1;
567: xfree(abs_dst);
568: abs_dst = NULL;
569: }
570:
571: out:
572: xfree(abs_src);
573: globfree(&g);
574: return(err);
575: }
576:
577: static int
578: process_put(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag)
579: {
580: char *tmp_dst = NULL;
581: char *abs_dst = NULL;
582: char *tmp;
583: glob_t g;
584: int err = 0;
585: int i;
586:
587: if (dst) {
588: tmp_dst = xstrdup(dst);
589: tmp_dst = make_absolute(tmp_dst, pwd);
590: }
591:
592: memset(&g, 0, sizeof(g));
593: debug3("Looking up %s", src);
594: if (glob(src, 0, NULL, &g)) {
595: error("File \"%s\" not found.", src);
596: err = -1;
597: goto out;
598: }
599:
600: /* If multiple matches, dst may be directory or unspecified */
601: if (g.gl_matchc > 1 && tmp_dst && !remote_is_dir(conn, tmp_dst)) {
602: error("Multiple files match, but \"%s\" is not a directory",
603: tmp_dst);
604: err = -1;
605: goto out;
606: }
607:
1.46 djm 608: for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1.44 djm 609: if (!is_reg(g.gl_pathv[i])) {
610: error("skipping non-regular file %s",
611: g.gl_pathv[i]);
612: continue;
613: }
614: if (infer_path(g.gl_pathv[i], &tmp)) {
615: err = -1;
616: goto out;
617: }
618:
619: if (g.gl_matchc == 1 && tmp_dst) {
620: /* If directory specified, append filename */
621: if (remote_is_dir(conn, tmp_dst)) {
622: if (infer_path(g.gl_pathv[0], &tmp)) {
623: err = 1;
624: goto out;
625: }
626: abs_dst = path_append(tmp_dst, tmp);
627: xfree(tmp);
628: } else
629: abs_dst = xstrdup(tmp_dst);
630:
631: } else if (tmp_dst) {
632: abs_dst = path_append(tmp_dst, tmp);
633: xfree(tmp);
634: } else
635: abs_dst = make_absolute(tmp, pwd);
636:
637: printf("Uploading %s to %s\n", g.gl_pathv[i], abs_dst);
638: if (do_upload(conn, g.gl_pathv[i], abs_dst, pflag) == -1)
639: err = -1;
640: }
641:
642: out:
643: if (abs_dst)
644: xfree(abs_dst);
645: if (tmp_dst)
646: xfree(tmp_dst);
647: globfree(&g);
648: return(err);
649: }
650:
651: static int
652: sdirent_comp(const void *aa, const void *bb)
653: {
654: SFTP_DIRENT *a = *(SFTP_DIRENT **)aa;
655: SFTP_DIRENT *b = *(SFTP_DIRENT **)bb;
1.53 djm 656: int rmul = sort_flag & LS_REVERSE_SORT ? -1 : 1;
1.44 djm 657:
1.52 djm 658: #define NCMP(a,b) (a == b ? 0 : (a < b ? 1 : -1))
1.53 djm 659: if (sort_flag & LS_NAME_SORT)
1.52 djm 660: return (rmul * strcmp(a->filename, b->filename));
1.53 djm 661: else if (sort_flag & LS_TIME_SORT)
1.52 djm 662: return (rmul * NCMP(a->a.mtime, b->a.mtime));
1.53 djm 663: else if (sort_flag & LS_SIZE_SORT)
1.52 djm 664: return (rmul * NCMP(a->a.size, b->a.size));
665:
666: fatal("Unknown ls sort type");
1.44 djm 667: }
668:
669: /* sftp ls.1 replacement for directories */
670: static int
671: do_ls_dir(struct sftp_conn *conn, char *path, char *strip_path, int lflag)
672: {
1.64 djm 673: int n;
674: u_int c = 1, colspace = 0, columns = 1;
1.44 djm 675: SFTP_DIRENT **d;
676:
677: if ((n = do_readdir(conn, path, &d)) != 0)
678: return (n);
679:
1.53 djm 680: if (!(lflag & LS_SHORT_VIEW)) {
1.64 djm 681: u_int m = 0, width = 80;
1.44 djm 682: struct winsize ws;
683: char *tmp;
684:
685: /* Count entries for sort and find longest filename */
1.54 djm 686: for (n = 0; d[n] != NULL; n++) {
687: if (d[n]->filename[0] != '.' || (lflag & LS_SHOW_ALL))
688: m = MAX(m, strlen(d[n]->filename));
689: }
1.44 djm 690:
691: /* Add any subpath that also needs to be counted */
692: tmp = path_strip(path, strip_path);
693: m += strlen(tmp);
694: xfree(tmp);
695:
696: if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1)
697: width = ws.ws_col;
698:
699: columns = width / (m + 2);
700: columns = MAX(columns, 1);
701: colspace = width / columns;
702: colspace = MIN(colspace, width);
703: }
704:
1.52 djm 705: if (lflag & SORT_FLAGS) {
1.68 dtucker 706: for (n = 0; d[n] != NULL; n++)
707: ; /* count entries */
1.53 djm 708: sort_flag = lflag & (SORT_FLAGS|LS_REVERSE_SORT);
1.52 djm 709: qsort(d, n, sizeof(*d), sdirent_comp);
710: }
1.44 djm 711:
1.46 djm 712: for (n = 0; d[n] != NULL && !interrupted; n++) {
1.44 djm 713: char *tmp, *fname;
1.54 djm 714:
715: if (d[n]->filename[0] == '.' && !(lflag & LS_SHOW_ALL))
716: continue;
1.44 djm 717:
718: tmp = path_append(path, d[n]->filename);
719: fname = path_strip(tmp, strip_path);
720: xfree(tmp);
721:
1.53 djm 722: if (lflag & LS_LONG_VIEW) {
723: if (lflag & LS_NUMERIC_VIEW) {
1.50 djm 724: char *lname;
725: struct stat sb;
726:
727: memset(&sb, 0, sizeof(sb));
728: attrib_to_stat(&d[n]->a, &sb);
729: lname = ls_file(fname, &sb, 1);
730: printf("%s\n", lname);
731: xfree(lname);
732: } else
733: printf("%s\n", d[n]->longname);
1.44 djm 734: } else {
735: printf("%-*s", colspace, fname);
736: if (c >= columns) {
737: printf("\n");
738: c = 1;
739: } else
740: c++;
741: }
742:
743: xfree(fname);
744: }
745:
1.53 djm 746: if (!(lflag & LS_LONG_VIEW) && (c != 1))
1.44 djm 747: printf("\n");
748:
749: free_sftp_dirents(d);
750: return (0);
751: }
752:
753: /* sftp ls.1 replacement which handles path globs */
754: static int
755: do_globbed_ls(struct sftp_conn *conn, char *path, char *strip_path,
756: int lflag)
757: {
758: glob_t g;
1.64 djm 759: u_int i, c = 1, colspace = 0, columns = 1;
1.60 fgsch 760: Attrib *a = NULL;
1.44 djm 761:
762: memset(&g, 0, sizeof(g));
763:
764: if (remote_glob(conn, path, GLOB_MARK|GLOB_NOCHECK|GLOB_BRACE,
1.60 fgsch 765: NULL, &g) || (g.gl_pathc && !g.gl_matchc)) {
766: if (g.gl_pathc)
767: globfree(&g);
1.44 djm 768: error("Can't ls: \"%s\" not found", path);
769: return (-1);
770: }
771:
1.46 djm 772: if (interrupted)
773: goto out;
774:
1.44 djm 775: /*
1.60 fgsch 776: * If the glob returns a single match and it is a directory,
777: * then just list its contents.
1.44 djm 778: */
1.60 fgsch 779: if (g.gl_matchc == 1) {
780: if ((a = do_lstat(conn, g.gl_pathv[0], 1)) == NULL) {
1.44 djm 781: globfree(&g);
782: return (-1);
783: }
784: if ((a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) &&
785: S_ISDIR(a->perm)) {
1.60 fgsch 786: int err;
787:
788: err = do_ls_dir(conn, g.gl_pathv[0], strip_path, lflag);
1.44 djm 789: globfree(&g);
1.60 fgsch 790: return (err);
1.44 djm 791: }
792: }
793:
1.53 djm 794: if (!(lflag & LS_SHORT_VIEW)) {
1.64 djm 795: u_int m = 0, width = 80;
1.44 djm 796: struct winsize ws;
797:
798: /* Count entries for sort and find longest filename */
799: for (i = 0; g.gl_pathv[i]; i++)
800: m = MAX(m, strlen(g.gl_pathv[i]));
801:
802: if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1)
803: width = ws.ws_col;
804:
805: columns = width / (m + 2);
806: columns = MAX(columns, 1);
807: colspace = width / columns;
808: }
809:
1.60 fgsch 810: for (i = 0; g.gl_pathv[i] && !interrupted; i++, a = NULL) {
1.44 djm 811: char *fname;
812:
813: fname = path_strip(g.gl_pathv[i], strip_path);
814:
1.53 djm 815: if (lflag & LS_LONG_VIEW) {
1.44 djm 816: char *lname;
817: struct stat sb;
818:
819: /*
820: * XXX: this is slow - 1 roundtrip per path
821: * A solution to this is to fork glob() and
822: * build a sftp specific version which keeps the
823: * attribs (which currently get thrown away)
824: * that the server returns as well as the filenames.
825: */
826: memset(&sb, 0, sizeof(sb));
1.60 fgsch 827: if (a == NULL)
828: a = do_lstat(conn, g.gl_pathv[i], 1);
1.44 djm 829: if (a != NULL)
830: attrib_to_stat(a, &sb);
831: lname = ls_file(fname, &sb, 1);
832: printf("%s\n", lname);
833: xfree(lname);
834: } else {
835: printf("%-*s", colspace, fname);
836: if (c >= columns) {
837: printf("\n");
838: c = 1;
839: } else
840: c++;
841: }
842: xfree(fname);
843: }
844:
1.53 djm 845: if (!(lflag & LS_LONG_VIEW) && (c != 1))
1.44 djm 846: printf("\n");
847:
1.46 djm 848: out:
1.44 djm 849: if (g.gl_pathc)
850: globfree(&g);
851:
852: return (0);
853: }
854:
855: static int
856: parse_args(const char **cpp, int *pflag, int *lflag, int *iflag,
857: unsigned long *n_arg, char **path1, char **path2)
858: {
859: const char *cmd, *cp = *cpp;
860: char *cp2;
861: int base = 0;
862: long l;
863: int i, cmdnum;
864:
865: /* Skip leading whitespace */
866: cp = cp + strspn(cp, WHITESPACE);
867:
868: /* Ignore blank lines and lines which begin with comment '#' char */
869: if (*cp == '\0' || *cp == '#')
870: return (0);
871:
872: /* Check for leading '-' (disable error processing) */
873: *iflag = 0;
874: if (*cp == '-') {
875: *iflag = 1;
876: cp++;
877: }
878:
879: /* Figure out which command we have */
880: for (i = 0; cmds[i].c; i++) {
881: int cmdlen = strlen(cmds[i].c);
882:
883: /* Check for command followed by whitespace */
884: if (!strncasecmp(cp, cmds[i].c, cmdlen) &&
885: strchr(WHITESPACE, cp[cmdlen])) {
886: cp += cmdlen;
887: cp = cp + strspn(cp, WHITESPACE);
888: break;
889: }
890: }
891: cmdnum = cmds[i].n;
892: cmd = cmds[i].c;
893:
894: /* Special case */
895: if (*cp == '!') {
896: cp++;
897: cmdnum = I_SHELL;
898: } else if (cmdnum == -1) {
899: error("Invalid command.");
900: return (-1);
901: }
902:
903: /* Get arguments and parse flags */
904: *lflag = *pflag = *n_arg = 0;
905: *path1 = *path2 = NULL;
906: switch (cmdnum) {
907: case I_GET:
908: case I_PUT:
909: if (parse_getput_flags(&cp, pflag))
910: return(-1);
911: /* Get first pathname (mandatory) */
912: if (get_pathname(&cp, path1))
913: return(-1);
914: if (*path1 == NULL) {
915: error("You must specify at least one path after a "
916: "%s command.", cmd);
917: return(-1);
918: }
919: /* Try to get second pathname (optional) */
920: if (get_pathname(&cp, path2))
921: return(-1);
922: break;
923: case I_RENAME:
924: case I_SYMLINK:
925: if (get_pathname(&cp, path1))
926: return(-1);
927: if (get_pathname(&cp, path2))
928: return(-1);
929: if (!*path1 || !*path2) {
930: error("You must specify two paths after a %s "
931: "command.", cmd);
932: return(-1);
933: }
934: break;
935: case I_RM:
936: case I_MKDIR:
937: case I_RMDIR:
938: case I_CHDIR:
939: case I_LCHDIR:
940: case I_LMKDIR:
941: /* Get pathname (mandatory) */
942: if (get_pathname(&cp, path1))
943: return(-1);
944: if (*path1 == NULL) {
945: error("You must specify a path after a %s command.",
946: cmd);
947: return(-1);
948: }
949: break;
950: case I_LS:
951: if (parse_ls_flags(&cp, lflag))
952: return(-1);
953: /* Path is optional */
954: if (get_pathname(&cp, path1))
955: return(-1);
956: break;
957: case I_LLS:
958: case I_SHELL:
959: /* Uses the rest of the line */
960: break;
961: case I_LUMASK:
962: base = 8;
963: case I_CHMOD:
964: base = 8;
965: case I_CHOWN:
966: case I_CHGRP:
967: /* Get numeric arg (mandatory) */
968: l = strtol(cp, &cp2, base);
969: if (cp2 == cp || ((l == LONG_MIN || l == LONG_MAX) &&
970: errno == ERANGE) || l < 0) {
971: error("You must supply a numeric argument "
972: "to the %s command.", cmd);
973: return(-1);
974: }
975: cp = cp2;
976: *n_arg = l;
977: if (cmdnum == I_LUMASK && strchr(WHITESPACE, *cp))
978: break;
979: if (cmdnum == I_LUMASK || !strchr(WHITESPACE, *cp)) {
980: error("You must supply a numeric argument "
981: "to the %s command.", cmd);
982: return(-1);
983: }
984: cp += strspn(cp, WHITESPACE);
985:
986: /* Get pathname (mandatory) */
987: if (get_pathname(&cp, path1))
988: return(-1);
989: if (*path1 == NULL) {
990: error("You must specify a path after a %s command.",
991: cmd);
992: return(-1);
993: }
994: break;
995: case I_QUIT:
996: case I_PWD:
997: case I_LPWD:
998: case I_HELP:
999: case I_VERSION:
1000: case I_PROGRESS:
1001: break;
1002: default:
1003: fatal("Command not implemented");
1004: }
1005:
1006: *cpp = cp;
1007: return(cmdnum);
1008: }
1009:
1010: static int
1011: parse_dispatch_command(struct sftp_conn *conn, const char *cmd, char **pwd,
1012: int err_abort)
1013: {
1014: char *path1, *path2, *tmp;
1015: int pflag, lflag, iflag, cmdnum, i;
1016: unsigned long n_arg;
1017: Attrib a, *aa;
1018: char path_buf[MAXPATHLEN];
1019: int err = 0;
1020: glob_t g;
1021:
1022: path1 = path2 = NULL;
1023: cmdnum = parse_args(&cmd, &pflag, &lflag, &iflag, &n_arg,
1024: &path1, &path2);
1025:
1026: if (iflag != 0)
1027: err_abort = 0;
1028:
1029: memset(&g, 0, sizeof(g));
1030:
1031: /* Perform command */
1032: switch (cmdnum) {
1033: case 0:
1034: /* Blank line */
1035: break;
1036: case -1:
1037: /* Unrecognized command */
1038: err = -1;
1039: break;
1040: case I_GET:
1041: err = process_get(conn, path1, path2, *pwd, pflag);
1042: break;
1043: case I_PUT:
1044: err = process_put(conn, path1, path2, *pwd, pflag);
1045: break;
1046: case I_RENAME:
1047: path1 = make_absolute(path1, *pwd);
1048: path2 = make_absolute(path2, *pwd);
1049: err = do_rename(conn, path1, path2);
1050: break;
1051: case I_SYMLINK:
1052: path2 = make_absolute(path2, *pwd);
1053: err = do_symlink(conn, path1, path2);
1054: break;
1055: case I_RM:
1056: path1 = make_absolute(path1, *pwd);
1057: remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
1.46 djm 1058: for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1.44 djm 1059: printf("Removing %s\n", g.gl_pathv[i]);
1060: err = do_rm(conn, g.gl_pathv[i]);
1061: if (err != 0 && err_abort)
1062: break;
1063: }
1064: break;
1065: case I_MKDIR:
1066: path1 = make_absolute(path1, *pwd);
1067: attrib_clear(&a);
1068: a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
1069: a.perm = 0777;
1070: err = do_mkdir(conn, path1, &a);
1071: break;
1072: case I_RMDIR:
1073: path1 = make_absolute(path1, *pwd);
1074: err = do_rmdir(conn, path1);
1075: break;
1076: case I_CHDIR:
1077: path1 = make_absolute(path1, *pwd);
1078: if ((tmp = do_realpath(conn, path1)) == NULL) {
1079: err = 1;
1080: break;
1081: }
1082: if ((aa = do_stat(conn, tmp, 0)) == NULL) {
1083: xfree(tmp);
1084: err = 1;
1085: break;
1086: }
1087: if (!(aa->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)) {
1088: error("Can't change directory: Can't check target");
1089: xfree(tmp);
1090: err = 1;
1091: break;
1092: }
1093: if (!S_ISDIR(aa->perm)) {
1094: error("Can't change directory: \"%s\" is not "
1095: "a directory", tmp);
1096: xfree(tmp);
1097: err = 1;
1098: break;
1099: }
1100: xfree(*pwd);
1101: *pwd = tmp;
1102: break;
1103: case I_LS:
1104: if (!path1) {
1105: do_globbed_ls(conn, *pwd, *pwd, lflag);
1106: break;
1107: }
1108:
1109: /* Strip pwd off beginning of non-absolute paths */
1110: tmp = NULL;
1111: if (*path1 != '/')
1112: tmp = *pwd;
1113:
1114: path1 = make_absolute(path1, *pwd);
1115: err = do_globbed_ls(conn, path1, tmp, lflag);
1116: break;
1117: case I_LCHDIR:
1118: if (chdir(path1) == -1) {
1119: error("Couldn't change local directory to "
1120: "\"%s\": %s", path1, strerror(errno));
1121: err = 1;
1122: }
1123: break;
1124: case I_LMKDIR:
1125: if (mkdir(path1, 0777) == -1) {
1126: error("Couldn't create local directory "
1127: "\"%s\": %s", path1, strerror(errno));
1128: err = 1;
1129: }
1130: break;
1131: case I_LLS:
1132: local_do_ls(cmd);
1133: break;
1134: case I_SHELL:
1135: local_do_shell(cmd);
1136: break;
1137: case I_LUMASK:
1138: umask(n_arg);
1139: printf("Local umask: %03lo\n", n_arg);
1140: break;
1141: case I_CHMOD:
1142: path1 = make_absolute(path1, *pwd);
1143: attrib_clear(&a);
1144: a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
1145: a.perm = n_arg;
1146: remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
1.46 djm 1147: for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1.44 djm 1148: printf("Changing mode on %s\n", g.gl_pathv[i]);
1149: err = do_setstat(conn, g.gl_pathv[i], &a);
1150: if (err != 0 && err_abort)
1151: break;
1152: }
1153: break;
1154: case I_CHOWN:
1155: case I_CHGRP:
1156: path1 = make_absolute(path1, *pwd);
1157: remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
1.46 djm 1158: for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1.44 djm 1159: if (!(aa = do_stat(conn, g.gl_pathv[i], 0))) {
1160: if (err != 0 && err_abort)
1161: break;
1162: else
1163: continue;
1164: }
1165: if (!(aa->flags & SSH2_FILEXFER_ATTR_UIDGID)) {
1166: error("Can't get current ownership of "
1167: "remote file \"%s\"", g.gl_pathv[i]);
1168: if (err != 0 && err_abort)
1169: break;
1170: else
1171: continue;
1172: }
1173: aa->flags &= SSH2_FILEXFER_ATTR_UIDGID;
1174: if (cmdnum == I_CHOWN) {
1175: printf("Changing owner on %s\n", g.gl_pathv[i]);
1176: aa->uid = n_arg;
1177: } else {
1178: printf("Changing group on %s\n", g.gl_pathv[i]);
1179: aa->gid = n_arg;
1180: }
1181: err = do_setstat(conn, g.gl_pathv[i], aa);
1182: if (err != 0 && err_abort)
1183: break;
1184: }
1185: break;
1186: case I_PWD:
1187: printf("Remote working directory: %s\n", *pwd);
1188: break;
1189: case I_LPWD:
1190: if (!getcwd(path_buf, sizeof(path_buf))) {
1191: error("Couldn't get local cwd: %s", strerror(errno));
1192: err = -1;
1193: break;
1194: }
1195: printf("Local working directory: %s\n", path_buf);
1196: break;
1197: case I_QUIT:
1198: /* Processed below */
1199: break;
1200: case I_HELP:
1201: help();
1202: break;
1203: case I_VERSION:
1204: printf("SFTP protocol version %u\n", sftp_proto_version(conn));
1205: break;
1206: case I_PROGRESS:
1207: showprogress = !showprogress;
1208: if (showprogress)
1209: printf("Progress meter enabled\n");
1210: else
1211: printf("Progress meter disabled\n");
1212: break;
1213: default:
1214: fatal("%d is not implemented", cmdnum);
1215: }
1216:
1217: if (g.gl_pathc)
1218: globfree(&g);
1219: if (path1)
1220: xfree(path1);
1221: if (path2)
1222: xfree(path2);
1223:
1224: /* If an unignored error occurs in batch mode we should abort. */
1225: if (err_abort && err != 0)
1226: return (-1);
1227: else if (cmdnum == I_QUIT)
1228: return (1);
1229:
1230: return (0);
1231: }
1232:
1.57 djm 1233: static char *
1234: prompt(EditLine *el)
1235: {
1236: return ("sftp> ");
1237: }
1238:
1.44 djm 1239: int
1240: interactive_loop(int fd_in, int fd_out, char *file1, char *file2)
1241: {
1242: char *pwd;
1243: char *dir = NULL;
1244: char cmd[2048];
1245: struct sftp_conn *conn;
1.66 jaredy 1246: int err, interactive;
1.57 djm 1247: EditLine *el = NULL;
1248: History *hl = NULL;
1249: HistEvent hev;
1250: extern char *__progname;
1251:
1252: if (!batchmode && isatty(STDIN_FILENO)) {
1253: if ((el = el_init(__progname, stdin, stdout, stderr)) == NULL)
1254: fatal("Couldn't initialise editline");
1255: if ((hl = history_init()) == NULL)
1256: fatal("Couldn't initialise editline history");
1257: history(hl, &hev, H_SETSIZE, 100);
1258: el_set(el, EL_HIST, history, hl);
1259:
1260: el_set(el, EL_PROMPT, prompt);
1261: el_set(el, EL_EDITOR, "emacs");
1262: el_set(el, EL_TERMINAL, NULL);
1263: el_set(el, EL_SIGNAL, 1);
1264: el_source(el, NULL);
1265: }
1.44 djm 1266:
1267: conn = do_init(fd_in, fd_out, copy_buffer_len, num_requests);
1268: if (conn == NULL)
1269: fatal("Couldn't initialise connection to server");
1270:
1271: pwd = do_realpath(conn, ".");
1272: if (pwd == NULL)
1273: fatal("Need cwd");
1274:
1275: if (file1 != NULL) {
1276: dir = xstrdup(file1);
1277: dir = make_absolute(dir, pwd);
1278:
1279: if (remote_is_dir(conn, dir) && file2 == NULL) {
1280: printf("Changing to: %s\n", dir);
1281: snprintf(cmd, sizeof cmd, "cd \"%s\"", dir);
1.58 markus 1282: if (parse_dispatch_command(conn, cmd, &pwd, 1) != 0) {
1283: xfree(dir);
1284: xfree(pwd);
1.76 djm 1285: xfree(conn);
1.44 djm 1286: return (-1);
1.58 markus 1287: }
1.44 djm 1288: } else {
1289: if (file2 == NULL)
1290: snprintf(cmd, sizeof cmd, "get %s", dir);
1291: else
1292: snprintf(cmd, sizeof cmd, "get %s %s", dir,
1293: file2);
1294:
1295: err = parse_dispatch_command(conn, cmd, &pwd, 1);
1296: xfree(dir);
1297: xfree(pwd);
1.76 djm 1298: xfree(conn);
1.44 djm 1299: return (err);
1300: }
1301: xfree(dir);
1302: }
1303:
1304: setvbuf(stdout, NULL, _IOLBF, 0);
1305: setvbuf(infile, NULL, _IOLBF, 0);
1306:
1.66 jaredy 1307: interactive = !batchmode && isatty(STDIN_FILENO);
1.44 djm 1308: err = 0;
1309: for (;;) {
1310: char *cp;
1.57 djm 1311: const char *line;
1312: int count = 0;
1.44 djm 1313:
1.46 djm 1314: signal(SIGINT, SIG_IGN);
1315:
1.57 djm 1316: if (el == NULL) {
1.66 jaredy 1317: if (interactive)
1318: printf("sftp> ");
1.57 djm 1319: if (fgets(cmd, sizeof(cmd), infile) == NULL) {
1.66 jaredy 1320: if (interactive)
1321: printf("\n");
1.57 djm 1322: break;
1323: }
1.66 jaredy 1324: if (!interactive) { /* Echo command */
1325: printf("sftp> %s", cmd);
1326: if (strlen(cmd) > 0 &&
1327: cmd[strlen(cmd) - 1] != '\n')
1328: printf("\n");
1329: }
1.57 djm 1330: } else {
1.66 jaredy 1331: if ((line = el_gets(el, &count)) == NULL || count <= 0) {
1332: printf("\n");
1.57 djm 1333: break;
1.66 jaredy 1334: }
1.57 djm 1335: history(hl, &hev, H_ENTER, line);
1336: if (strlcpy(cmd, line, sizeof(cmd)) >= sizeof(cmd)) {
1337: fprintf(stderr, "Error: input line too long\n");
1338: continue;
1339: }
1.44 djm 1340: }
1341:
1342: cp = strrchr(cmd, '\n');
1343: if (cp)
1344: *cp = '\0';
1345:
1.46 djm 1346: /* Handle user interrupts gracefully during commands */
1347: interrupted = 0;
1348: signal(SIGINT, cmd_interrupt);
1349:
1.44 djm 1350: err = parse_dispatch_command(conn, cmd, &pwd, batchmode);
1351: if (err != 0)
1352: break;
1353: }
1354: xfree(pwd);
1.76 djm 1355: xfree(conn);
1.66 jaredy 1356:
1357: if (el != NULL)
1358: el_end(el);
1.44 djm 1359:
1360: /* err == 1 signifies normal "quit" exit */
1361: return (err >= 0 ? 0 : -1);
1362: }
1.34 fgsch 1363:
1.18 itojun 1364: static void
1.36 djm 1365: connect_to_server(char *path, char **args, int *in, int *out)
1.1 djm 1366: {
1367: int c_in, c_out;
1.30 deraadt 1368:
1.1 djm 1369: int inout[2];
1.30 deraadt 1370:
1.1 djm 1371: if (socketpair(AF_UNIX, SOCK_STREAM, 0, inout) == -1)
1372: fatal("socketpair: %s", strerror(errno));
1373: *in = *out = inout[0];
1374: c_in = c_out = inout[1];
1375:
1.36 djm 1376: if ((sshpid = fork()) == -1)
1.1 djm 1377: fatal("fork: %s", strerror(errno));
1.36 djm 1378: else if (sshpid == 0) {
1.1 djm 1379: if ((dup2(c_in, STDIN_FILENO) == -1) ||
1380: (dup2(c_out, STDOUT_FILENO) == -1)) {
1381: fprintf(stderr, "dup2: %s\n", strerror(errno));
1.47 djm 1382: _exit(1);
1.1 djm 1383: }
1384: close(*in);
1385: close(*out);
1386: close(c_in);
1387: close(c_out);
1.46 djm 1388:
1389: /*
1390: * The underlying ssh is in the same process group, so we must
1.56 deraadt 1391: * ignore SIGINT if we want to gracefully abort commands,
1392: * otherwise the signal will make it to the ssh process and
1.46 djm 1393: * kill it too
1394: */
1395: signal(SIGINT, SIG_IGN);
1.49 dtucker 1396: execvp(path, args);
1.23 djm 1397: fprintf(stderr, "exec: %s: %s\n", path, strerror(errno));
1.47 djm 1398: _exit(1);
1.1 djm 1399: }
1400:
1.36 djm 1401: signal(SIGTERM, killchild);
1402: signal(SIGINT, killchild);
1403: signal(SIGHUP, killchild);
1.1 djm 1404: close(c_in);
1405: close(c_out);
1406: }
1407:
1.18 itojun 1408: static void
1.1 djm 1409: usage(void)
1410: {
1.25 mpech 1411: extern char *__progname;
1.27 markus 1412:
1.19 stevesk 1413: fprintf(stderr,
1.38 jmc 1414: "usage: %s [-1Cv] [-B buffer_size] [-b batchfile] [-F ssh_config]\n"
1415: " [-o ssh_option] [-P sftp_server_path] [-R num_requests]\n"
1416: " [-S program] [-s subsystem | sftp_server] host\n"
1417: " %s [[user@]host[:file [file]]]\n"
1418: " %s [[user@]host[:dir[/]]]\n"
1419: " %s -b batchfile [user@]host\n", __progname, __progname, __progname, __progname);
1.1 djm 1420: exit(1);
1421: }
1422:
1.2 stevesk 1423: int
1.1 djm 1424: main(int argc, char **argv)
1425: {
1.33 djm 1426: int in, out, ch, err;
1.48 pedro 1427: char *host, *userhost, *cp, *file2 = NULL;
1.17 mouring 1428: int debug_level = 0, sshver = 2;
1429: char *file1 = NULL, *sftp_server = NULL;
1.23 djm 1430: char *ssh_program = _PATH_SSH_PROGRAM, *sftp_direct = NULL;
1.17 mouring 1431: LogLevel ll = SYSLOG_LEVEL_INFO;
1432: arglist args;
1.3 djm 1433: extern int optind;
1434: extern char *optarg;
1.67 djm 1435:
1436: /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */
1437: sanitise_stdfd();
1.1 djm 1438:
1.70 djm 1439: memset(&args, '\0', sizeof(args));
1.17 mouring 1440: args.list = NULL;
1.80 djm 1441: addargs(&args, "%s", ssh_program);
1.17 mouring 1442: addargs(&args, "-oForwardX11 no");
1443: addargs(&args, "-oForwardAgent no");
1.69 reyk 1444: addargs(&args, "-oPermitLocalCommand no");
1.21 stevesk 1445: addargs(&args, "-oClearAllForwardings yes");
1.40 djm 1446:
1.17 mouring 1447: ll = SYSLOG_LEVEL_INFO;
1.40 djm 1448: infile = stdin;
1.3 djm 1449:
1.26 djm 1450: while ((ch = getopt(argc, argv, "1hvCo:s:S:b:B:F:P:R:")) != -1) {
1.3 djm 1451: switch (ch) {
1452: case 'C':
1.17 mouring 1453: addargs(&args, "-C");
1.3 djm 1454: break;
1455: case 'v':
1.17 mouring 1456: if (debug_level < 3) {
1457: addargs(&args, "-v");
1458: ll = SYSLOG_LEVEL_DEBUG1 + debug_level;
1459: }
1460: debug_level++;
1.3 djm 1461: break;
1.19 stevesk 1462: case 'F':
1.3 djm 1463: case 'o':
1.19 stevesk 1464: addargs(&args, "-%c%s", ch, optarg);
1.7 markus 1465: break;
1466: case '1':
1.17 mouring 1467: sshver = 1;
1.7 markus 1468: if (sftp_server == NULL)
1469: sftp_server = _PATH_SFTP_SERVER;
1470: break;
1471: case 's':
1472: sftp_server = optarg;
1473: break;
1474: case 'S':
1475: ssh_program = optarg;
1.70 djm 1476: replacearg(&args, 0, "%s", ssh_program);
1.3 djm 1477: break;
1.10 deraadt 1478: case 'b':
1.39 djm 1479: if (batchmode)
1480: fatal("Batch file already specified.");
1481:
1482: /* Allow "-" as stdin */
1.56 deraadt 1483: if (strcmp(optarg, "-") != 0 &&
1.65 djm 1484: (infile = fopen(optarg, "r")) == NULL)
1.39 djm 1485: fatal("%s (%s).", strerror(errno), optarg);
1.34 fgsch 1486: showprogress = 0;
1.39 djm 1487: batchmode = 1;
1.62 djm 1488: addargs(&args, "-obatchmode yes");
1.10 deraadt 1489: break;
1.23 djm 1490: case 'P':
1491: sftp_direct = optarg;
1.24 djm 1492: break;
1493: case 'B':
1494: copy_buffer_len = strtol(optarg, &cp, 10);
1495: if (copy_buffer_len == 0 || *cp != '\0')
1496: fatal("Invalid buffer size \"%s\"", optarg);
1.26 djm 1497: break;
1498: case 'R':
1499: num_requests = strtol(optarg, &cp, 10);
1500: if (num_requests == 0 || *cp != '\0')
1.27 markus 1501: fatal("Invalid number of requests \"%s\"",
1.26 djm 1502: optarg);
1.23 djm 1503: break;
1.3 djm 1504: case 'h':
1505: default:
1.1 djm 1506: usage();
1507: }
1508: }
1.45 djm 1509:
1510: if (!isatty(STDERR_FILENO))
1511: showprogress = 0;
1.1 djm 1512:
1.29 markus 1513: log_init(argv[0], ll, SYSLOG_FACILITY_USER, 1);
1514:
1.23 djm 1515: if (sftp_direct == NULL) {
1516: if (optind == argc || argc > (optind + 2))
1517: usage();
1518:
1519: userhost = xstrdup(argv[optind]);
1520: file2 = argv[optind+1];
1.1 djm 1521:
1.32 markus 1522: if ((host = strrchr(userhost, '@')) == NULL)
1.23 djm 1523: host = userhost;
1524: else {
1525: *host++ = '\0';
1526: if (!userhost[0]) {
1527: fprintf(stderr, "Missing username\n");
1528: usage();
1529: }
1530: addargs(&args, "-l%s",userhost);
1.41 djm 1531: }
1532:
1533: if ((cp = colon(host)) != NULL) {
1534: *cp++ = '\0';
1535: file1 = cp;
1.23 djm 1536: }
1.3 djm 1537:
1.23 djm 1538: host = cleanhostname(host);
1539: if (!*host) {
1540: fprintf(stderr, "Missing hostname\n");
1.1 djm 1541: usage();
1542: }
1543:
1.23 djm 1544: addargs(&args, "-oProtocol %d", sshver);
1545:
1546: /* no subsystem if the server-spec contains a '/' */
1547: if (sftp_server == NULL || strchr(sftp_server, '/') == NULL)
1548: addargs(&args, "-s");
1549:
1550: addargs(&args, "%s", host);
1.27 markus 1551: addargs(&args, "%s", (sftp_server != NULL ?
1.23 djm 1552: sftp_server : "sftp"));
1553:
1.39 djm 1554: if (!batchmode)
1555: fprintf(stderr, "Connecting to %s...\n", host);
1.36 djm 1556: connect_to_server(ssh_program, args.list, &in, &out);
1.23 djm 1557: } else {
1558: args.list = NULL;
1559: addargs(&args, "sftp-server");
1560:
1.39 djm 1561: if (!batchmode)
1562: fprintf(stderr, "Attaching to %s...\n", sftp_direct);
1.36 djm 1563: connect_to_server(sftp_direct, args.list, &in, &out);
1.1 djm 1564: }
1.70 djm 1565: freeargs(&args);
1.1 djm 1566:
1.33 djm 1567: err = interactive_loop(in, out, file1, file2);
1.1 djm 1568:
1569: close(in);
1570: close(out);
1.39 djm 1571: if (batchmode)
1.10 deraadt 1572: fclose(infile);
1.1 djm 1573:
1.28 markus 1574: while (waitpid(sshpid, NULL, 0) == -1)
1575: if (errno != EINTR)
1576: fatal("Couldn't wait for ssh process: %s",
1577: strerror(errno));
1.1 djm 1578:
1.33 djm 1579: exit(err == 0 ? 0 : 1);
1.1 djm 1580: }