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1.99 ! djm 1: /* $OpenBSD: sftp.c,v 1.98 2007/12/12 05:04:03 djm 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:
1.91 deraadt 18: #include <sys/types.h>
1.72 stevesk 19: #include <sys/ioctl.h>
1.73 stevesk 20: #include <sys/wait.h>
1.75 stevesk 21: #include <sys/stat.h>
1.83 stevesk 22: #include <sys/socket.h>
1.88 stevesk 23: #include <sys/param.h>
1.44 djm 24:
1.97 djm 25: #include <ctype.h>
1.85 stevesk 26: #include <errno.h>
1.44 djm 27: #include <glob.h>
1.57 djm 28: #include <histedit.h>
1.71 stevesk 29: #include <paths.h>
1.74 stevesk 30: #include <signal.h>
1.89 stevesk 31: #include <stdlib.h>
1.90 stevesk 32: #include <stdio.h>
1.87 stevesk 33: #include <string.h>
1.86 stevesk 34: #include <unistd.h>
1.91 deraadt 35: #include <stdarg.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"
1.91 deraadt 43: #include "buffer.h"
1.1 djm 44: #include "sftp-common.h"
45: #include "sftp-client.h"
1.43 djm 46:
1.44 djm 47: /* File to read commands from */
48: FILE* infile;
1.15 mouring 49:
1.44 djm 50: /* Are we in batchfile mode? */
1.39 djm 51: int batchmode = 0;
1.44 djm 52:
53: /* Size of buffer used when copying files */
1.24 djm 54: size_t copy_buffer_len = 32768;
1.44 djm 55:
56: /* Number of concurrent outstanding requests */
1.26 djm 57: size_t num_requests = 16;
1.44 djm 58:
59: /* PID of ssh transport process */
1.36 djm 60: static pid_t sshpid = -1;
1.7 markus 61:
1.44 djm 62: /* This is set to 0 if the progressmeter is not desired. */
1.45 djm 63: int showprogress = 1;
1.44 djm 64:
1.46 djm 65: /* SIGINT received during command processing */
66: volatile sig_atomic_t interrupted = 0;
67:
1.52 djm 68: /* I wish qsort() took a separate ctx for the comparison function...*/
69: int sort_flag;
70:
1.44 djm 71: int remote_glob(struct sftp_conn *, const char *, int,
72: int (*)(const char *, int), glob_t *); /* proto for sftp-glob.c */
73:
74: /* Separators for interactive commands */
75: #define WHITESPACE " \t\r\n"
76:
1.52 djm 77: /* ls flags */
1.53 djm 78: #define LS_LONG_VIEW 0x01 /* Full view ala ls -l */
79: #define LS_SHORT_VIEW 0x02 /* Single row view ala ls -1 */
80: #define LS_NUMERIC_VIEW 0x04 /* Long view with numeric uid/gid */
81: #define LS_NAME_SORT 0x08 /* Sort by name (default) */
82: #define LS_TIME_SORT 0x10 /* Sort by mtime */
83: #define LS_SIZE_SORT 0x20 /* Sort by file size */
84: #define LS_REVERSE_SORT 0x40 /* Reverse sort order */
1.54 djm 85: #define LS_SHOW_ALL 0x80 /* Don't skip filenames starting with '.' */
1.52 djm 86:
1.53 djm 87: #define VIEW_FLAGS (LS_LONG_VIEW|LS_SHORT_VIEW|LS_NUMERIC_VIEW)
88: #define SORT_FLAGS (LS_NAME_SORT|LS_TIME_SORT|LS_SIZE_SORT)
1.44 djm 89:
90: /* Commands for interactive mode */
91: #define I_CHDIR 1
92: #define I_CHGRP 2
93: #define I_CHMOD 3
94: #define I_CHOWN 4
95: #define I_GET 5
96: #define I_HELP 6
97: #define I_LCHDIR 7
98: #define I_LLS 8
99: #define I_LMKDIR 9
100: #define I_LPWD 10
101: #define I_LS 11
102: #define I_LUMASK 12
103: #define I_MKDIR 13
104: #define I_PUT 14
105: #define I_PWD 15
106: #define I_QUIT 16
107: #define I_RENAME 17
108: #define I_RM 18
109: #define I_RMDIR 19
110: #define I_SHELL 20
111: #define I_SYMLINK 21
112: #define I_VERSION 22
113: #define I_PROGRESS 23
114:
115: struct CMD {
116: const char *c;
117: const int n;
118: };
119:
120: static const struct CMD cmds[] = {
121: { "bye", I_QUIT },
122: { "cd", I_CHDIR },
123: { "chdir", I_CHDIR },
124: { "chgrp", I_CHGRP },
125: { "chmod", I_CHMOD },
126: { "chown", I_CHOWN },
127: { "dir", I_LS },
128: { "exit", I_QUIT },
129: { "get", I_GET },
130: { "mget", I_GET },
131: { "help", I_HELP },
132: { "lcd", I_LCHDIR },
133: { "lchdir", I_LCHDIR },
134: { "lls", I_LLS },
135: { "lmkdir", I_LMKDIR },
136: { "ln", I_SYMLINK },
137: { "lpwd", I_LPWD },
138: { "ls", I_LS },
139: { "lumask", I_LUMASK },
140: { "mkdir", I_MKDIR },
141: { "progress", I_PROGRESS },
142: { "put", I_PUT },
143: { "mput", I_PUT },
144: { "pwd", I_PWD },
145: { "quit", I_QUIT },
146: { "rename", I_RENAME },
147: { "rm", I_RM },
148: { "rmdir", I_RMDIR },
149: { "symlink", I_SYMLINK },
150: { "version", I_VERSION },
151: { "!", I_SHELL },
152: { "?", I_HELP },
153: { NULL, -1}
154: };
155:
156: int interactive_loop(int fd_in, int fd_out, char *file1, char *file2);
157:
1.96 stevesk 158: /* ARGSUSED */
1.44 djm 159: static void
1.46 djm 160: killchild(int signo)
161: {
1.61 dtucker 162: if (sshpid > 1) {
1.46 djm 163: kill(sshpid, SIGTERM);
1.61 dtucker 164: waitpid(sshpid, NULL, 0);
165: }
1.46 djm 166:
167: _exit(1);
168: }
169:
1.96 stevesk 170: /* ARGSUSED */
1.46 djm 171: static void
172: cmd_interrupt(int signo)
173: {
174: const char msg[] = "\rInterrupt \n";
1.59 djm 175: int olderrno = errno;
1.46 djm 176:
177: write(STDERR_FILENO, msg, sizeof(msg) - 1);
178: interrupted = 1;
1.59 djm 179: errno = olderrno;
1.46 djm 180: }
181:
182: static void
1.44 djm 183: help(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:
215: static void
216: local_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))
1.78 djm 248: error("Shell exited abnormally");
1.44 djm 249: else if (WEXITSTATUS(status))
250: error("Shell exited with status %d", WEXITSTATUS(status));
251: }
252:
253: static void
254: local_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 */
270: static char *
271: path_strip(char *path, char *strip)
272: {
273: size_t len;
274:
275: if (strip == NULL)
276: return (xstrdup(path));
277:
278: len = strlen(strip);
1.59 djm 279: if (strncmp(path, strip, len) == 0) {
1.44 djm 280: if (strip[len - 1] != '/' && path[len] == '/')
281: len++;
282: return (xstrdup(path + len));
283: }
284:
285: return (xstrdup(path));
286: }
287:
288: static char *
289: path_append(char *p1, char *p2)
290: {
291: char *ret;
1.94 ray 292: size_t len = strlen(p1) + strlen(p2) + 2;
1.44 djm 293:
294: ret = xmalloc(len);
295: strlcpy(ret, p1, len);
1.94 ray 296: if (p1[0] != '\0' && p1[strlen(p1) - 1] != '/')
1.44 djm 297: strlcat(ret, "/", len);
298: strlcat(ret, p2, len);
299:
300: return(ret);
301: }
302:
303: static char *
304: make_absolute(char *p, char *pwd)
305: {
1.51 avsm 306: char *abs_str;
1.44 djm 307:
308: /* Derelativise */
309: if (p && p[0] != '/') {
1.51 avsm 310: abs_str = path_append(pwd, p);
1.44 djm 311: xfree(p);
1.51 avsm 312: return(abs_str);
1.44 djm 313: } else
314: return(p);
315: }
316:
317: static int
318: infer_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:
337: static int
1.97 djm 338: parse_getput_flags(const char *cmd, char **argv, int argc, int *pflag)
1.44 djm 339: {
1.97 djm 340: extern int optind, optreset, opterr;
341: int ch;
1.44 djm 342:
1.97 djm 343: optind = optreset = 1;
344: opterr = 0;
345:
346: *pflag = 0;
347: while ((ch = getopt(argc, argv, "Pp")) != -1) {
348: switch (ch) {
1.44 djm 349: case 'p':
350: case 'P':
351: *pflag = 1;
352: break;
353: default:
1.97 djm 354: error("%s: Invalid flag -%c", cmd, ch);
355: return -1;
1.44 djm 356: }
357: }
358:
1.97 djm 359: return optind;
1.44 djm 360: }
361:
362: static int
1.97 djm 363: parse_ls_flags(char **argv, int argc, int *lflag)
1.44 djm 364: {
1.97 djm 365: extern int optind, optreset, opterr;
366: int ch;
367:
368: optind = optreset = 1;
369: opterr = 0;
1.44 djm 370:
1.53 djm 371: *lflag = LS_NAME_SORT;
1.97 djm 372: while ((ch = getopt(argc, argv, "1Saflnrt")) != -1) {
373: switch (ch) {
374: case '1':
375: *lflag &= ~VIEW_FLAGS;
376: *lflag |= LS_SHORT_VIEW;
377: break;
378: case 'S':
379: *lflag &= ~SORT_FLAGS;
380: *lflag |= LS_SIZE_SORT;
381: break;
382: case 'a':
383: *lflag |= LS_SHOW_ALL;
384: break;
385: case 'f':
386: *lflag &= ~SORT_FLAGS;
387: break;
388: case 'l':
389: *lflag &= ~VIEW_FLAGS;
390: *lflag |= LS_LONG_VIEW;
391: break;
392: case 'n':
393: *lflag &= ~VIEW_FLAGS;
394: *lflag |= LS_NUMERIC_VIEW|LS_LONG_VIEW;
395: break;
396: case 'r':
397: *lflag |= LS_REVERSE_SORT;
398: break;
399: case 't':
400: *lflag &= ~SORT_FLAGS;
401: *lflag |= LS_TIME_SORT;
402: break;
403: default:
404: error("ls: Invalid flag -%c", ch);
405: return -1;
1.44 djm 406: }
407: }
408:
1.97 djm 409: return optind;
1.44 djm 410: }
411:
412: static int
413: is_dir(char *path)
414: {
415: struct stat sb;
416:
417: /* XXX: report errors? */
418: if (stat(path, &sb) == -1)
419: return(0);
420:
1.92 otto 421: return(S_ISDIR(sb.st_mode));
1.44 djm 422: }
423:
424: static int
425: remote_is_dir(struct sftp_conn *conn, char *path)
426: {
427: Attrib *a;
428:
429: /* XXX: report errors? */
430: if ((a = do_stat(conn, path, 1)) == NULL)
431: return(0);
432: if (!(a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS))
433: return(0);
1.92 otto 434: return(S_ISDIR(a->perm));
1.44 djm 435: }
436:
437: static int
438: process_get(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag)
439: {
440: char *abs_src = NULL;
441: char *abs_dst = NULL;
442: char *tmp;
443: glob_t g;
444: int err = 0;
445: int i;
446:
447: abs_src = xstrdup(src);
448: abs_src = make_absolute(abs_src, pwd);
449:
450: memset(&g, 0, sizeof(g));
451: debug3("Looking up %s", abs_src);
452: if (remote_glob(conn, abs_src, 0, NULL, &g)) {
453: error("File \"%s\" not found.", abs_src);
454: err = -1;
455: goto out;
456: }
457:
458: /* If multiple matches, dst must be a directory or unspecified */
459: if (g.gl_matchc > 1 && dst && !is_dir(dst)) {
460: error("Multiple files match, but \"%s\" is not a directory",
461: dst);
462: err = -1;
463: goto out;
464: }
465:
1.46 djm 466: for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1.44 djm 467: if (infer_path(g.gl_pathv[i], &tmp)) {
468: err = -1;
469: goto out;
470: }
471:
472: if (g.gl_matchc == 1 && dst) {
473: /* If directory specified, append filename */
1.82 markus 474: xfree(tmp);
1.44 djm 475: if (is_dir(dst)) {
476: if (infer_path(g.gl_pathv[0], &tmp)) {
477: err = 1;
478: goto out;
479: }
480: abs_dst = path_append(dst, tmp);
481: xfree(tmp);
482: } else
483: abs_dst = xstrdup(dst);
484: } else if (dst) {
485: abs_dst = path_append(dst, tmp);
486: xfree(tmp);
487: } else
488: abs_dst = tmp;
489:
490: printf("Fetching %s to %s\n", g.gl_pathv[i], abs_dst);
491: if (do_download(conn, g.gl_pathv[i], abs_dst, pflag) == -1)
492: err = -1;
493: xfree(abs_dst);
494: abs_dst = NULL;
495: }
496:
497: out:
498: xfree(abs_src);
499: globfree(&g);
500: return(err);
501: }
502:
503: static int
504: process_put(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag)
505: {
506: char *tmp_dst = NULL;
507: char *abs_dst = NULL;
508: char *tmp;
509: glob_t g;
510: int err = 0;
511: int i;
1.99 ! djm 512: struct stat sb;
1.44 djm 513:
514: if (dst) {
515: tmp_dst = xstrdup(dst);
516: tmp_dst = make_absolute(tmp_dst, pwd);
517: }
518:
519: memset(&g, 0, sizeof(g));
520: debug3("Looking up %s", src);
1.99 ! djm 521: if (glob(src, GLOB_NOCHECK, NULL, &g)) {
1.44 djm 522: error("File \"%s\" not found.", src);
523: err = -1;
524: goto out;
525: }
526:
527: /* If multiple matches, dst may be directory or unspecified */
528: if (g.gl_matchc > 1 && tmp_dst && !remote_is_dir(conn, tmp_dst)) {
529: error("Multiple files match, but \"%s\" is not a directory",
530: tmp_dst);
531: err = -1;
532: goto out;
533: }
534:
1.46 djm 535: for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1.99 ! djm 536: if (stat(g.gl_pathv[i], &sb) == -1) {
! 537: err = -1;
! 538: error("stat %s: %s", g.gl_pathv[i], strerror(errno));
! 539: continue;
! 540: }
! 541:
! 542: if (!S_ISREG(sb.st_mode)) {
1.44 djm 543: error("skipping non-regular file %s",
544: g.gl_pathv[i]);
545: continue;
546: }
547: if (infer_path(g.gl_pathv[i], &tmp)) {
548: err = -1;
549: goto out;
550: }
551:
552: if (g.gl_matchc == 1 && tmp_dst) {
553: /* If directory specified, append filename */
554: if (remote_is_dir(conn, tmp_dst)) {
555: if (infer_path(g.gl_pathv[0], &tmp)) {
556: err = 1;
557: goto out;
558: }
559: abs_dst = path_append(tmp_dst, tmp);
560: xfree(tmp);
561: } else
562: abs_dst = xstrdup(tmp_dst);
563:
564: } else if (tmp_dst) {
565: abs_dst = path_append(tmp_dst, tmp);
566: xfree(tmp);
567: } else
568: abs_dst = make_absolute(tmp, pwd);
569:
570: printf("Uploading %s to %s\n", g.gl_pathv[i], abs_dst);
571: if (do_upload(conn, g.gl_pathv[i], abs_dst, pflag) == -1)
572: err = -1;
573: }
574:
575: out:
576: if (abs_dst)
577: xfree(abs_dst);
578: if (tmp_dst)
579: xfree(tmp_dst);
580: globfree(&g);
581: return(err);
582: }
583:
584: static int
585: sdirent_comp(const void *aa, const void *bb)
586: {
587: SFTP_DIRENT *a = *(SFTP_DIRENT **)aa;
588: SFTP_DIRENT *b = *(SFTP_DIRENT **)bb;
1.53 djm 589: int rmul = sort_flag & LS_REVERSE_SORT ? -1 : 1;
1.44 djm 590:
1.52 djm 591: #define NCMP(a,b) (a == b ? 0 : (a < b ? 1 : -1))
1.53 djm 592: if (sort_flag & LS_NAME_SORT)
1.52 djm 593: return (rmul * strcmp(a->filename, b->filename));
1.53 djm 594: else if (sort_flag & LS_TIME_SORT)
1.52 djm 595: return (rmul * NCMP(a->a.mtime, b->a.mtime));
1.53 djm 596: else if (sort_flag & LS_SIZE_SORT)
1.52 djm 597: return (rmul * NCMP(a->a.size, b->a.size));
598:
599: fatal("Unknown ls sort type");
1.44 djm 600: }
601:
602: /* sftp ls.1 replacement for directories */
603: static int
604: do_ls_dir(struct sftp_conn *conn, char *path, char *strip_path, int lflag)
605: {
1.64 djm 606: int n;
607: u_int c = 1, colspace = 0, columns = 1;
1.44 djm 608: SFTP_DIRENT **d;
609:
610: if ((n = do_readdir(conn, path, &d)) != 0)
611: return (n);
612:
1.53 djm 613: if (!(lflag & LS_SHORT_VIEW)) {
1.64 djm 614: u_int m = 0, width = 80;
1.44 djm 615: struct winsize ws;
616: char *tmp;
617:
618: /* Count entries for sort and find longest filename */
1.54 djm 619: for (n = 0; d[n] != NULL; n++) {
620: if (d[n]->filename[0] != '.' || (lflag & LS_SHOW_ALL))
621: m = MAX(m, strlen(d[n]->filename));
622: }
1.44 djm 623:
624: /* Add any subpath that also needs to be counted */
625: tmp = path_strip(path, strip_path);
626: m += strlen(tmp);
627: xfree(tmp);
628:
629: if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1)
630: width = ws.ws_col;
631:
632: columns = width / (m + 2);
633: columns = MAX(columns, 1);
634: colspace = width / columns;
635: colspace = MIN(colspace, width);
636: }
637:
1.52 djm 638: if (lflag & SORT_FLAGS) {
1.68 dtucker 639: for (n = 0; d[n] != NULL; n++)
640: ; /* count entries */
1.53 djm 641: sort_flag = lflag & (SORT_FLAGS|LS_REVERSE_SORT);
1.52 djm 642: qsort(d, n, sizeof(*d), sdirent_comp);
643: }
1.44 djm 644:
1.46 djm 645: for (n = 0; d[n] != NULL && !interrupted; n++) {
1.44 djm 646: char *tmp, *fname;
1.54 djm 647:
648: if (d[n]->filename[0] == '.' && !(lflag & LS_SHOW_ALL))
649: continue;
1.44 djm 650:
651: tmp = path_append(path, d[n]->filename);
652: fname = path_strip(tmp, strip_path);
653: xfree(tmp);
654:
1.53 djm 655: if (lflag & LS_LONG_VIEW) {
656: if (lflag & LS_NUMERIC_VIEW) {
1.50 djm 657: char *lname;
658: struct stat sb;
659:
660: memset(&sb, 0, sizeof(sb));
661: attrib_to_stat(&d[n]->a, &sb);
662: lname = ls_file(fname, &sb, 1);
663: printf("%s\n", lname);
664: xfree(lname);
665: } else
666: printf("%s\n", d[n]->longname);
1.44 djm 667: } else {
668: printf("%-*s", colspace, fname);
669: if (c >= columns) {
670: printf("\n");
671: c = 1;
672: } else
673: c++;
674: }
675:
676: xfree(fname);
677: }
678:
1.53 djm 679: if (!(lflag & LS_LONG_VIEW) && (c != 1))
1.44 djm 680: printf("\n");
681:
682: free_sftp_dirents(d);
683: return (0);
684: }
685:
686: /* sftp ls.1 replacement which handles path globs */
687: static int
688: do_globbed_ls(struct sftp_conn *conn, char *path, char *strip_path,
689: int lflag)
690: {
691: glob_t g;
1.64 djm 692: u_int i, c = 1, colspace = 0, columns = 1;
1.60 fgsch 693: Attrib *a = NULL;
1.44 djm 694:
695: memset(&g, 0, sizeof(g));
696:
697: if (remote_glob(conn, path, GLOB_MARK|GLOB_NOCHECK|GLOB_BRACE,
1.60 fgsch 698: NULL, &g) || (g.gl_pathc && !g.gl_matchc)) {
699: if (g.gl_pathc)
700: globfree(&g);
1.44 djm 701: error("Can't ls: \"%s\" not found", path);
702: return (-1);
703: }
704:
1.46 djm 705: if (interrupted)
706: goto out;
707:
1.44 djm 708: /*
1.60 fgsch 709: * If the glob returns a single match and it is a directory,
710: * then just list its contents.
1.44 djm 711: */
1.60 fgsch 712: if (g.gl_matchc == 1) {
713: if ((a = do_lstat(conn, g.gl_pathv[0], 1)) == NULL) {
1.44 djm 714: globfree(&g);
715: return (-1);
716: }
717: if ((a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) &&
718: S_ISDIR(a->perm)) {
1.60 fgsch 719: int err;
720:
721: err = do_ls_dir(conn, g.gl_pathv[0], strip_path, lflag);
1.44 djm 722: globfree(&g);
1.60 fgsch 723: return (err);
1.44 djm 724: }
725: }
726:
1.53 djm 727: if (!(lflag & LS_SHORT_VIEW)) {
1.64 djm 728: u_int m = 0, width = 80;
1.44 djm 729: struct winsize ws;
730:
731: /* Count entries for sort and find longest filename */
732: for (i = 0; g.gl_pathv[i]; i++)
733: m = MAX(m, strlen(g.gl_pathv[i]));
734:
735: if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1)
736: width = ws.ws_col;
737:
738: columns = width / (m + 2);
739: columns = MAX(columns, 1);
740: colspace = width / columns;
741: }
742:
1.60 fgsch 743: for (i = 0; g.gl_pathv[i] && !interrupted; i++, a = NULL) {
1.44 djm 744: char *fname;
745:
746: fname = path_strip(g.gl_pathv[i], strip_path);
747:
1.53 djm 748: if (lflag & LS_LONG_VIEW) {
1.44 djm 749: char *lname;
750: struct stat sb;
751:
752: /*
753: * XXX: this is slow - 1 roundtrip per path
754: * A solution to this is to fork glob() and
755: * build a sftp specific version which keeps the
756: * attribs (which currently get thrown away)
757: * that the server returns as well as the filenames.
758: */
759: memset(&sb, 0, sizeof(sb));
1.60 fgsch 760: if (a == NULL)
761: a = do_lstat(conn, g.gl_pathv[i], 1);
1.44 djm 762: if (a != NULL)
763: attrib_to_stat(a, &sb);
764: lname = ls_file(fname, &sb, 1);
765: printf("%s\n", lname);
766: xfree(lname);
767: } else {
768: printf("%-*s", colspace, fname);
769: if (c >= columns) {
770: printf("\n");
771: c = 1;
772: } else
773: c++;
774: }
775: xfree(fname);
776: }
777:
1.53 djm 778: if (!(lflag & LS_LONG_VIEW) && (c != 1))
1.44 djm 779: printf("\n");
780:
1.46 djm 781: out:
1.44 djm 782: if (g.gl_pathc)
783: globfree(&g);
784:
785: return (0);
786: }
787:
1.97 djm 788: /*
789: * Undo escaping of glob sequences in place. Used to undo extra escaping
790: * applied in makeargv() when the string is destined for a function that
791: * does not glob it.
792: */
793: static void
794: undo_glob_escape(char *s)
795: {
796: size_t i, j;
797:
798: for (i = j = 0;;) {
799: if (s[i] == '\0') {
800: s[j] = '\0';
801: return;
802: }
803: if (s[i] != '\\') {
804: s[j++] = s[i++];
805: continue;
806: }
807: /* s[i] == '\\' */
808: ++i;
809: switch (s[i]) {
810: case '?':
811: case '[':
812: case '*':
813: case '\\':
814: s[j++] = s[i++];
815: break;
816: case '\0':
817: s[j++] = '\\';
818: s[j] = '\0';
819: return;
820: default:
821: s[j++] = '\\';
822: s[j++] = s[i++];
823: break;
824: }
825: }
826: }
827:
828: /*
829: * Split a string into an argument vector using sh(1)-style quoting,
830: * comment and escaping rules, but with some tweaks to handle glob(3)
831: * wildcards.
832: * Returns NULL on error or a NULL-terminated array of arguments.
833: */
834: #define MAXARGS 128
835: #define MAXARGLEN 8192
836: static char **
837: makeargv(const char *arg, int *argcp)
838: {
839: int argc, quot;
840: size_t i, j;
841: static char argvs[MAXARGLEN];
842: static char *argv[MAXARGS + 1];
843: enum { MA_START, MA_SQUOTE, MA_DQUOTE, MA_UNQUOTED } state, q;
844:
845: *argcp = argc = 0;
846: if (strlen(arg) > sizeof(argvs) - 1) {
847: args_too_longs:
848: error("string too long");
849: return NULL;
850: }
851: state = MA_START;
852: i = j = 0;
853: for (;;) {
854: if (isspace(arg[i])) {
855: if (state == MA_UNQUOTED) {
856: /* Terminate current argument */
857: argvs[j++] = '\0';
858: argc++;
859: state = MA_START;
860: } else if (state != MA_START)
861: argvs[j++] = arg[i];
862: } else if (arg[i] == '"' || arg[i] == '\'') {
863: q = arg[i] == '"' ? MA_DQUOTE : MA_SQUOTE;
864: if (state == MA_START) {
865: argv[argc] = argvs + j;
866: state = q;
867: } else if (state == MA_UNQUOTED)
868: state = q;
869: else if (state == q)
870: state = MA_UNQUOTED;
871: else
872: argvs[j++] = arg[i];
873: } else if (arg[i] == '\\') {
874: if (state == MA_SQUOTE || state == MA_DQUOTE) {
875: quot = state == MA_SQUOTE ? '\'' : '"';
876: /* Unescape quote we are in */
877: /* XXX support \n and friends? */
878: if (arg[i + 1] == quot) {
879: i++;
880: argvs[j++] = arg[i];
881: } else if (arg[i + 1] == '?' ||
882: arg[i + 1] == '[' || arg[i + 1] == '*') {
883: /*
884: * Special case for sftp: append
885: * double-escaped glob sequence -
886: * glob will undo one level of
887: * escaping. NB. string can grow here.
888: */
889: if (j >= sizeof(argvs) - 5)
890: goto args_too_longs;
891: argvs[j++] = '\\';
892: argvs[j++] = arg[i++];
893: argvs[j++] = '\\';
894: argvs[j++] = arg[i];
895: } else {
896: argvs[j++] = arg[i++];
897: argvs[j++] = arg[i];
898: }
899: } else {
900: if (state == MA_START) {
901: argv[argc] = argvs + j;
902: state = MA_UNQUOTED;
903: }
904: if (arg[i + 1] == '?' || arg[i + 1] == '[' ||
905: arg[i + 1] == '*' || arg[i + 1] == '\\') {
906: /*
907: * Special case for sftp: append
908: * escaped glob sequence -
909: * glob will undo one level of
910: * escaping.
911: */
912: argvs[j++] = arg[i++];
913: argvs[j++] = arg[i];
914: } else {
915: /* Unescape everything */
916: /* XXX support \n and friends? */
917: i++;
918: argvs[j++] = arg[i];
919: }
920: }
921: } else if (arg[i] == '#') {
922: if (state == MA_SQUOTE || state == MA_DQUOTE)
923: argvs[j++] = arg[i];
924: else
925: goto string_done;
926: } else if (arg[i] == '\0') {
927: if (state == MA_SQUOTE || state == MA_DQUOTE) {
928: error("Unterminated quoted argument");
929: return NULL;
930: }
931: string_done:
932: if (state == MA_UNQUOTED) {
933: argvs[j++] = '\0';
934: argc++;
935: }
936: break;
937: } else {
938: if (state == MA_START) {
939: argv[argc] = argvs + j;
940: state = MA_UNQUOTED;
941: }
942: if ((state == MA_SQUOTE || state == MA_DQUOTE) &&
943: (arg[i] == '?' || arg[i] == '[' || arg[i] == '*')) {
944: /*
945: * Special case for sftp: escape quoted
946: * glob(3) wildcards. NB. string can grow
947: * here.
948: */
949: if (j >= sizeof(argvs) - 3)
950: goto args_too_longs;
951: argvs[j++] = '\\';
952: argvs[j++] = arg[i];
953: } else
954: argvs[j++] = arg[i];
955: }
956: i++;
957: }
958: *argcp = argc;
959: return argv;
960: }
961:
1.44 djm 962: static int
963: parse_args(const char **cpp, int *pflag, int *lflag, int *iflag,
964: unsigned long *n_arg, char **path1, char **path2)
965: {
966: const char *cmd, *cp = *cpp;
1.97 djm 967: char *cp2, **argv;
1.44 djm 968: int base = 0;
969: long l;
1.97 djm 970: int i, cmdnum, optidx, argc;
1.44 djm 971:
972: /* Skip leading whitespace */
973: cp = cp + strspn(cp, WHITESPACE);
974:
975: /* Ignore blank lines and lines which begin with comment '#' char */
976: if (*cp == '\0' || *cp == '#')
977: return (0);
978:
979: /* Check for leading '-' (disable error processing) */
980: *iflag = 0;
981: if (*cp == '-') {
982: *iflag = 1;
983: cp++;
984: }
985:
1.97 djm 986: if ((argv = makeargv(cp, &argc)) == NULL)
987: return -1;
988:
1.44 djm 989: /* Figure out which command we have */
1.97 djm 990: for (i = 0; cmds[i].c != NULL; i++) {
991: if (strcasecmp(cmds[i].c, argv[0]) == 0)
1.44 djm 992: break;
993: }
994: cmdnum = cmds[i].n;
995: cmd = cmds[i].c;
996:
997: /* Special case */
998: if (*cp == '!') {
999: cp++;
1000: cmdnum = I_SHELL;
1001: } else if (cmdnum == -1) {
1002: error("Invalid command.");
1.97 djm 1003: return -1;
1.44 djm 1004: }
1005:
1006: /* Get arguments and parse flags */
1007: *lflag = *pflag = *n_arg = 0;
1008: *path1 = *path2 = NULL;
1.97 djm 1009: optidx = 1;
1.44 djm 1010: switch (cmdnum) {
1011: case I_GET:
1012: case I_PUT:
1.97 djm 1013: if ((optidx = parse_getput_flags(cmd, argv, argc, pflag)) == -1)
1014: return -1;
1.44 djm 1015: /* Get first pathname (mandatory) */
1.97 djm 1016: if (argc - optidx < 1) {
1.44 djm 1017: error("You must specify at least one path after a "
1018: "%s command.", cmd);
1.97 djm 1019: return -1;
1020: }
1021: *path1 = xstrdup(argv[optidx]);
1022: /* Get second pathname (optional) */
1023: if (argc - optidx > 1) {
1024: *path2 = xstrdup(argv[optidx + 1]);
1025: /* Destination is not globbed */
1026: undo_glob_escape(*path2);
1.44 djm 1027: }
1028: break;
1029: case I_RENAME:
1030: case I_SYMLINK:
1.97 djm 1031: if (argc - optidx < 2) {
1.44 djm 1032: error("You must specify two paths after a %s "
1033: "command.", cmd);
1.97 djm 1034: return -1;
1.44 djm 1035: }
1.97 djm 1036: *path1 = xstrdup(argv[optidx]);
1037: *path2 = xstrdup(argv[optidx + 1]);
1038: /* Paths are not globbed */
1039: undo_glob_escape(*path1);
1040: undo_glob_escape(*path2);
1.44 djm 1041: break;
1042: case I_RM:
1043: case I_MKDIR:
1044: case I_RMDIR:
1045: case I_CHDIR:
1046: case I_LCHDIR:
1047: case I_LMKDIR:
1048: /* Get pathname (mandatory) */
1.97 djm 1049: if (argc - optidx < 1) {
1.44 djm 1050: error("You must specify a path after a %s command.",
1051: cmd);
1.97 djm 1052: return -1;
1.44 djm 1053: }
1.97 djm 1054: *path1 = xstrdup(argv[optidx]);
1055: /* Only "rm" globs */
1056: if (cmdnum != I_RM)
1057: undo_glob_escape(*path1);
1.44 djm 1058: break;
1059: case I_LS:
1.97 djm 1060: if ((optidx = parse_ls_flags(argv, argc, lflag)) == -1)
1.44 djm 1061: return(-1);
1062: /* Path is optional */
1.97 djm 1063: if (argc - optidx > 0)
1064: *path1 = xstrdup(argv[optidx]);
1.44 djm 1065: break;
1066: case I_LLS:
1.98 djm 1067: /* Skip ls command and following whitespace */
1068: cp = cp + strlen(cmd) + strspn(cp, WHITESPACE);
1.44 djm 1069: case I_SHELL:
1070: /* Uses the rest of the line */
1071: break;
1072: case I_LUMASK:
1073: case I_CHMOD:
1074: base = 8;
1075: case I_CHOWN:
1076: case I_CHGRP:
1077: /* Get numeric arg (mandatory) */
1.97 djm 1078: if (argc - optidx < 1)
1079: goto need_num_arg;
1.93 ray 1080: errno = 0;
1.97 djm 1081: l = strtol(argv[optidx], &cp2, base);
1082: if (cp2 == argv[optidx] || *cp2 != '\0' ||
1083: ((l == LONG_MIN || l == LONG_MAX) && errno == ERANGE) ||
1084: l < 0) {
1085: need_num_arg:
1.44 djm 1086: error("You must supply a numeric argument "
1087: "to the %s command.", cmd);
1.97 djm 1088: return -1;
1.44 djm 1089: }
1090: *n_arg = l;
1.97 djm 1091: if (cmdnum == I_LUMASK)
1.44 djm 1092: break;
1093: /* Get pathname (mandatory) */
1.97 djm 1094: if (argc - optidx < 2) {
1.44 djm 1095: error("You must specify a path after a %s command.",
1096: cmd);
1.97 djm 1097: return -1;
1.44 djm 1098: }
1.97 djm 1099: *path1 = xstrdup(argv[optidx + 1]);
1.44 djm 1100: break;
1101: case I_QUIT:
1102: case I_PWD:
1103: case I_LPWD:
1104: case I_HELP:
1105: case I_VERSION:
1106: case I_PROGRESS:
1107: break;
1108: default:
1109: fatal("Command not implemented");
1110: }
1111:
1112: *cpp = cp;
1113: return(cmdnum);
1114: }
1115:
1116: static int
1117: parse_dispatch_command(struct sftp_conn *conn, const char *cmd, char **pwd,
1118: int err_abort)
1119: {
1120: char *path1, *path2, *tmp;
1121: int pflag, lflag, iflag, cmdnum, i;
1122: unsigned long n_arg;
1123: Attrib a, *aa;
1124: char path_buf[MAXPATHLEN];
1125: int err = 0;
1126: glob_t g;
1127:
1128: path1 = path2 = NULL;
1129: cmdnum = parse_args(&cmd, &pflag, &lflag, &iflag, &n_arg,
1130: &path1, &path2);
1131:
1132: if (iflag != 0)
1133: err_abort = 0;
1134:
1135: memset(&g, 0, sizeof(g));
1136:
1137: /* Perform command */
1138: switch (cmdnum) {
1139: case 0:
1140: /* Blank line */
1141: break;
1142: case -1:
1143: /* Unrecognized command */
1144: err = -1;
1145: break;
1146: case I_GET:
1147: err = process_get(conn, path1, path2, *pwd, pflag);
1148: break;
1149: case I_PUT:
1150: err = process_put(conn, path1, path2, *pwd, pflag);
1151: break;
1152: case I_RENAME:
1153: path1 = make_absolute(path1, *pwd);
1154: path2 = make_absolute(path2, *pwd);
1155: err = do_rename(conn, path1, path2);
1156: break;
1157: case I_SYMLINK:
1158: path2 = make_absolute(path2, *pwd);
1159: err = do_symlink(conn, path1, path2);
1160: break;
1161: case I_RM:
1162: path1 = make_absolute(path1, *pwd);
1163: remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
1.46 djm 1164: for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1.44 djm 1165: printf("Removing %s\n", g.gl_pathv[i]);
1166: err = do_rm(conn, g.gl_pathv[i]);
1167: if (err != 0 && err_abort)
1168: break;
1169: }
1170: break;
1171: case I_MKDIR:
1172: path1 = make_absolute(path1, *pwd);
1173: attrib_clear(&a);
1174: a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
1175: a.perm = 0777;
1176: err = do_mkdir(conn, path1, &a);
1177: break;
1178: case I_RMDIR:
1179: path1 = make_absolute(path1, *pwd);
1180: err = do_rmdir(conn, path1);
1181: break;
1182: case I_CHDIR:
1183: path1 = make_absolute(path1, *pwd);
1184: if ((tmp = do_realpath(conn, path1)) == NULL) {
1185: err = 1;
1186: break;
1187: }
1188: if ((aa = do_stat(conn, tmp, 0)) == NULL) {
1189: xfree(tmp);
1190: err = 1;
1191: break;
1192: }
1193: if (!(aa->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)) {
1194: error("Can't change directory: Can't check target");
1195: xfree(tmp);
1196: err = 1;
1197: break;
1198: }
1199: if (!S_ISDIR(aa->perm)) {
1200: error("Can't change directory: \"%s\" is not "
1201: "a directory", tmp);
1202: xfree(tmp);
1203: err = 1;
1204: break;
1205: }
1206: xfree(*pwd);
1207: *pwd = tmp;
1208: break;
1209: case I_LS:
1210: if (!path1) {
1211: do_globbed_ls(conn, *pwd, *pwd, lflag);
1212: break;
1213: }
1214:
1215: /* Strip pwd off beginning of non-absolute paths */
1216: tmp = NULL;
1217: if (*path1 != '/')
1218: tmp = *pwd;
1219:
1220: path1 = make_absolute(path1, *pwd);
1221: err = do_globbed_ls(conn, path1, tmp, lflag);
1222: break;
1223: case I_LCHDIR:
1224: if (chdir(path1) == -1) {
1225: error("Couldn't change local directory to "
1226: "\"%s\": %s", path1, strerror(errno));
1227: err = 1;
1228: }
1229: break;
1230: case I_LMKDIR:
1231: if (mkdir(path1, 0777) == -1) {
1232: error("Couldn't create local directory "
1233: "\"%s\": %s", path1, strerror(errno));
1234: err = 1;
1235: }
1236: break;
1237: case I_LLS:
1238: local_do_ls(cmd);
1239: break;
1240: case I_SHELL:
1241: local_do_shell(cmd);
1242: break;
1243: case I_LUMASK:
1244: umask(n_arg);
1245: printf("Local umask: %03lo\n", n_arg);
1246: break;
1247: case I_CHMOD:
1248: path1 = make_absolute(path1, *pwd);
1249: attrib_clear(&a);
1250: a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
1251: a.perm = n_arg;
1252: remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
1.46 djm 1253: for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1.44 djm 1254: printf("Changing mode on %s\n", g.gl_pathv[i]);
1255: err = do_setstat(conn, g.gl_pathv[i], &a);
1256: if (err != 0 && err_abort)
1257: break;
1258: }
1259: break;
1260: case I_CHOWN:
1261: case I_CHGRP:
1262: path1 = make_absolute(path1, *pwd);
1263: remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
1.46 djm 1264: for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1.44 djm 1265: if (!(aa = do_stat(conn, g.gl_pathv[i], 0))) {
1266: if (err != 0 && err_abort)
1267: break;
1268: else
1269: continue;
1270: }
1271: if (!(aa->flags & SSH2_FILEXFER_ATTR_UIDGID)) {
1272: error("Can't get current ownership of "
1273: "remote file \"%s\"", g.gl_pathv[i]);
1274: if (err != 0 && err_abort)
1275: break;
1276: else
1277: continue;
1278: }
1279: aa->flags &= SSH2_FILEXFER_ATTR_UIDGID;
1280: if (cmdnum == I_CHOWN) {
1281: printf("Changing owner on %s\n", g.gl_pathv[i]);
1282: aa->uid = n_arg;
1283: } else {
1284: printf("Changing group on %s\n", g.gl_pathv[i]);
1285: aa->gid = n_arg;
1286: }
1287: err = do_setstat(conn, g.gl_pathv[i], aa);
1288: if (err != 0 && err_abort)
1289: break;
1290: }
1291: break;
1292: case I_PWD:
1293: printf("Remote working directory: %s\n", *pwd);
1294: break;
1295: case I_LPWD:
1296: if (!getcwd(path_buf, sizeof(path_buf))) {
1297: error("Couldn't get local cwd: %s", strerror(errno));
1298: err = -1;
1299: break;
1300: }
1301: printf("Local working directory: %s\n", path_buf);
1302: break;
1303: case I_QUIT:
1304: /* Processed below */
1305: break;
1306: case I_HELP:
1307: help();
1308: break;
1309: case I_VERSION:
1310: printf("SFTP protocol version %u\n", sftp_proto_version(conn));
1311: break;
1312: case I_PROGRESS:
1313: showprogress = !showprogress;
1314: if (showprogress)
1315: printf("Progress meter enabled\n");
1316: else
1317: printf("Progress meter disabled\n");
1318: break;
1319: default:
1320: fatal("%d is not implemented", cmdnum);
1321: }
1322:
1323: if (g.gl_pathc)
1324: globfree(&g);
1325: if (path1)
1326: xfree(path1);
1327: if (path2)
1328: xfree(path2);
1329:
1330: /* If an unignored error occurs in batch mode we should abort. */
1331: if (err_abort && err != 0)
1332: return (-1);
1333: else if (cmdnum == I_QUIT)
1334: return (1);
1335:
1336: return (0);
1337: }
1338:
1.57 djm 1339: static char *
1340: prompt(EditLine *el)
1341: {
1342: return ("sftp> ");
1343: }
1344:
1.44 djm 1345: int
1346: interactive_loop(int fd_in, int fd_out, char *file1, char *file2)
1347: {
1348: char *pwd;
1349: char *dir = NULL;
1350: char cmd[2048];
1351: struct sftp_conn *conn;
1.66 jaredy 1352: int err, interactive;
1.57 djm 1353: EditLine *el = NULL;
1354: History *hl = NULL;
1355: HistEvent hev;
1356: extern char *__progname;
1357:
1358: if (!batchmode && isatty(STDIN_FILENO)) {
1359: if ((el = el_init(__progname, stdin, stdout, stderr)) == NULL)
1360: fatal("Couldn't initialise editline");
1361: if ((hl = history_init()) == NULL)
1362: fatal("Couldn't initialise editline history");
1363: history(hl, &hev, H_SETSIZE, 100);
1364: el_set(el, EL_HIST, history, hl);
1365:
1366: el_set(el, EL_PROMPT, prompt);
1367: el_set(el, EL_EDITOR, "emacs");
1368: el_set(el, EL_TERMINAL, NULL);
1369: el_set(el, EL_SIGNAL, 1);
1370: el_source(el, NULL);
1371: }
1.44 djm 1372:
1373: conn = do_init(fd_in, fd_out, copy_buffer_len, num_requests);
1374: if (conn == NULL)
1375: fatal("Couldn't initialise connection to server");
1376:
1377: pwd = do_realpath(conn, ".");
1378: if (pwd == NULL)
1379: fatal("Need cwd");
1380:
1381: if (file1 != NULL) {
1382: dir = xstrdup(file1);
1383: dir = make_absolute(dir, pwd);
1384:
1385: if (remote_is_dir(conn, dir) && file2 == NULL) {
1386: printf("Changing to: %s\n", dir);
1387: snprintf(cmd, sizeof cmd, "cd \"%s\"", dir);
1.58 markus 1388: if (parse_dispatch_command(conn, cmd, &pwd, 1) != 0) {
1389: xfree(dir);
1390: xfree(pwd);
1.76 djm 1391: xfree(conn);
1.44 djm 1392: return (-1);
1.58 markus 1393: }
1.44 djm 1394: } else {
1395: if (file2 == NULL)
1396: snprintf(cmd, sizeof cmd, "get %s", dir);
1397: else
1398: snprintf(cmd, sizeof cmd, "get %s %s", dir,
1399: file2);
1400:
1401: err = parse_dispatch_command(conn, cmd, &pwd, 1);
1402: xfree(dir);
1403: xfree(pwd);
1.76 djm 1404: xfree(conn);
1.44 djm 1405: return (err);
1406: }
1407: xfree(dir);
1408: }
1409:
1410: setvbuf(stdout, NULL, _IOLBF, 0);
1411: setvbuf(infile, NULL, _IOLBF, 0);
1412:
1.66 jaredy 1413: interactive = !batchmode && isatty(STDIN_FILENO);
1.44 djm 1414: err = 0;
1415: for (;;) {
1416: char *cp;
1.57 djm 1417: const char *line;
1418: int count = 0;
1.44 djm 1419:
1.46 djm 1420: signal(SIGINT, SIG_IGN);
1421:
1.57 djm 1422: if (el == NULL) {
1.66 jaredy 1423: if (interactive)
1424: printf("sftp> ");
1.57 djm 1425: if (fgets(cmd, sizeof(cmd), infile) == NULL) {
1.66 jaredy 1426: if (interactive)
1427: printf("\n");
1.57 djm 1428: break;
1429: }
1.66 jaredy 1430: if (!interactive) { /* Echo command */
1431: printf("sftp> %s", cmd);
1432: if (strlen(cmd) > 0 &&
1433: cmd[strlen(cmd) - 1] != '\n')
1434: printf("\n");
1435: }
1.57 djm 1436: } else {
1.66 jaredy 1437: if ((line = el_gets(el, &count)) == NULL || count <= 0) {
1438: printf("\n");
1.57 djm 1439: break;
1.66 jaredy 1440: }
1.57 djm 1441: history(hl, &hev, H_ENTER, line);
1442: if (strlcpy(cmd, line, sizeof(cmd)) >= sizeof(cmd)) {
1443: fprintf(stderr, "Error: input line too long\n");
1444: continue;
1445: }
1.44 djm 1446: }
1447:
1448: cp = strrchr(cmd, '\n');
1449: if (cp)
1450: *cp = '\0';
1451:
1.46 djm 1452: /* Handle user interrupts gracefully during commands */
1453: interrupted = 0;
1454: signal(SIGINT, cmd_interrupt);
1455:
1.44 djm 1456: err = parse_dispatch_command(conn, cmd, &pwd, batchmode);
1457: if (err != 0)
1458: break;
1459: }
1460: xfree(pwd);
1.76 djm 1461: xfree(conn);
1.66 jaredy 1462:
1463: if (el != NULL)
1464: el_end(el);
1.44 djm 1465:
1466: /* err == 1 signifies normal "quit" exit */
1467: return (err >= 0 ? 0 : -1);
1468: }
1.34 fgsch 1469:
1.18 itojun 1470: static void
1.36 djm 1471: connect_to_server(char *path, char **args, int *in, int *out)
1.1 djm 1472: {
1473: int c_in, c_out;
1.30 deraadt 1474:
1.1 djm 1475: int inout[2];
1.30 deraadt 1476:
1.1 djm 1477: if (socketpair(AF_UNIX, SOCK_STREAM, 0, inout) == -1)
1478: fatal("socketpair: %s", strerror(errno));
1479: *in = *out = inout[0];
1480: c_in = c_out = inout[1];
1481:
1.36 djm 1482: if ((sshpid = fork()) == -1)
1.1 djm 1483: fatal("fork: %s", strerror(errno));
1.36 djm 1484: else if (sshpid == 0) {
1.1 djm 1485: if ((dup2(c_in, STDIN_FILENO) == -1) ||
1486: (dup2(c_out, STDOUT_FILENO) == -1)) {
1487: fprintf(stderr, "dup2: %s\n", strerror(errno));
1.47 djm 1488: _exit(1);
1.1 djm 1489: }
1490: close(*in);
1491: close(*out);
1492: close(c_in);
1493: close(c_out);
1.46 djm 1494:
1495: /*
1496: * The underlying ssh is in the same process group, so we must
1.56 deraadt 1497: * ignore SIGINT if we want to gracefully abort commands,
1498: * otherwise the signal will make it to the ssh process and
1.46 djm 1499: * kill it too
1500: */
1501: signal(SIGINT, SIG_IGN);
1.49 dtucker 1502: execvp(path, args);
1.23 djm 1503: fprintf(stderr, "exec: %s: %s\n", path, strerror(errno));
1.47 djm 1504: _exit(1);
1.1 djm 1505: }
1506:
1.36 djm 1507: signal(SIGTERM, killchild);
1508: signal(SIGINT, killchild);
1509: signal(SIGHUP, killchild);
1.1 djm 1510: close(c_in);
1511: close(c_out);
1512: }
1513:
1.18 itojun 1514: static void
1.1 djm 1515: usage(void)
1516: {
1.25 mpech 1517: extern char *__progname;
1.27 markus 1518:
1.19 stevesk 1519: fprintf(stderr,
1.38 jmc 1520: "usage: %s [-1Cv] [-B buffer_size] [-b batchfile] [-F ssh_config]\n"
1521: " [-o ssh_option] [-P sftp_server_path] [-R num_requests]\n"
1522: " [-S program] [-s subsystem | sftp_server] host\n"
1523: " %s [[user@]host[:file [file]]]\n"
1524: " %s [[user@]host[:dir[/]]]\n"
1525: " %s -b batchfile [user@]host\n", __progname, __progname, __progname, __progname);
1.1 djm 1526: exit(1);
1527: }
1528:
1.2 stevesk 1529: int
1.1 djm 1530: main(int argc, char **argv)
1531: {
1.33 djm 1532: int in, out, ch, err;
1.48 pedro 1533: char *host, *userhost, *cp, *file2 = NULL;
1.17 mouring 1534: int debug_level = 0, sshver = 2;
1535: char *file1 = NULL, *sftp_server = NULL;
1.23 djm 1536: char *ssh_program = _PATH_SSH_PROGRAM, *sftp_direct = NULL;
1.17 mouring 1537: LogLevel ll = SYSLOG_LEVEL_INFO;
1538: arglist args;
1.3 djm 1539: extern int optind;
1540: extern char *optarg;
1.67 djm 1541:
1542: /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */
1543: sanitise_stdfd();
1.1 djm 1544:
1.70 djm 1545: memset(&args, '\0', sizeof(args));
1.17 mouring 1546: args.list = NULL;
1.80 djm 1547: addargs(&args, "%s", ssh_program);
1.17 mouring 1548: addargs(&args, "-oForwardX11 no");
1549: addargs(&args, "-oForwardAgent no");
1.69 reyk 1550: addargs(&args, "-oPermitLocalCommand no");
1.21 stevesk 1551: addargs(&args, "-oClearAllForwardings yes");
1.40 djm 1552:
1.17 mouring 1553: ll = SYSLOG_LEVEL_INFO;
1.40 djm 1554: infile = stdin;
1.3 djm 1555:
1.26 djm 1556: while ((ch = getopt(argc, argv, "1hvCo:s:S:b:B:F:P:R:")) != -1) {
1.3 djm 1557: switch (ch) {
1558: case 'C':
1.17 mouring 1559: addargs(&args, "-C");
1.3 djm 1560: break;
1561: case 'v':
1.17 mouring 1562: if (debug_level < 3) {
1563: addargs(&args, "-v");
1564: ll = SYSLOG_LEVEL_DEBUG1 + debug_level;
1565: }
1566: debug_level++;
1.3 djm 1567: break;
1.19 stevesk 1568: case 'F':
1.3 djm 1569: case 'o':
1.19 stevesk 1570: addargs(&args, "-%c%s", ch, optarg);
1.7 markus 1571: break;
1572: case '1':
1.17 mouring 1573: sshver = 1;
1.7 markus 1574: if (sftp_server == NULL)
1575: sftp_server = _PATH_SFTP_SERVER;
1576: break;
1577: case 's':
1578: sftp_server = optarg;
1579: break;
1580: case 'S':
1581: ssh_program = optarg;
1.70 djm 1582: replacearg(&args, 0, "%s", ssh_program);
1.3 djm 1583: break;
1.10 deraadt 1584: case 'b':
1.39 djm 1585: if (batchmode)
1586: fatal("Batch file already specified.");
1587:
1588: /* Allow "-" as stdin */
1.56 deraadt 1589: if (strcmp(optarg, "-") != 0 &&
1.65 djm 1590: (infile = fopen(optarg, "r")) == NULL)
1.39 djm 1591: fatal("%s (%s).", strerror(errno), optarg);
1.34 fgsch 1592: showprogress = 0;
1.39 djm 1593: batchmode = 1;
1.62 djm 1594: addargs(&args, "-obatchmode yes");
1.10 deraadt 1595: break;
1.23 djm 1596: case 'P':
1597: sftp_direct = optarg;
1.24 djm 1598: break;
1599: case 'B':
1600: copy_buffer_len = strtol(optarg, &cp, 10);
1601: if (copy_buffer_len == 0 || *cp != '\0')
1602: fatal("Invalid buffer size \"%s\"", optarg);
1.26 djm 1603: break;
1604: case 'R':
1605: num_requests = strtol(optarg, &cp, 10);
1606: if (num_requests == 0 || *cp != '\0')
1.27 markus 1607: fatal("Invalid number of requests \"%s\"",
1.26 djm 1608: optarg);
1.23 djm 1609: break;
1.3 djm 1610: case 'h':
1611: default:
1.1 djm 1612: usage();
1613: }
1614: }
1.45 djm 1615:
1616: if (!isatty(STDERR_FILENO))
1617: showprogress = 0;
1.1 djm 1618:
1.29 markus 1619: log_init(argv[0], ll, SYSLOG_FACILITY_USER, 1);
1620:
1.23 djm 1621: if (sftp_direct == NULL) {
1622: if (optind == argc || argc > (optind + 2))
1623: usage();
1624:
1625: userhost = xstrdup(argv[optind]);
1626: file2 = argv[optind+1];
1.1 djm 1627:
1.32 markus 1628: if ((host = strrchr(userhost, '@')) == NULL)
1.23 djm 1629: host = userhost;
1630: else {
1631: *host++ = '\0';
1632: if (!userhost[0]) {
1633: fprintf(stderr, "Missing username\n");
1634: usage();
1635: }
1.95 stevesk 1636: addargs(&args, "-l%s", userhost);
1.41 djm 1637: }
1638:
1639: if ((cp = colon(host)) != NULL) {
1640: *cp++ = '\0';
1641: file1 = cp;
1.23 djm 1642: }
1.3 djm 1643:
1.23 djm 1644: host = cleanhostname(host);
1645: if (!*host) {
1646: fprintf(stderr, "Missing hostname\n");
1.1 djm 1647: usage();
1648: }
1649:
1.23 djm 1650: addargs(&args, "-oProtocol %d", sshver);
1651:
1652: /* no subsystem if the server-spec contains a '/' */
1653: if (sftp_server == NULL || strchr(sftp_server, '/') == NULL)
1654: addargs(&args, "-s");
1655:
1656: addargs(&args, "%s", host);
1.27 markus 1657: addargs(&args, "%s", (sftp_server != NULL ?
1.23 djm 1658: sftp_server : "sftp"));
1659:
1.39 djm 1660: if (!batchmode)
1661: fprintf(stderr, "Connecting to %s...\n", host);
1.36 djm 1662: connect_to_server(ssh_program, args.list, &in, &out);
1.23 djm 1663: } else {
1664: args.list = NULL;
1665: addargs(&args, "sftp-server");
1666:
1.39 djm 1667: if (!batchmode)
1668: fprintf(stderr, "Attaching to %s...\n", sftp_direct);
1.36 djm 1669: connect_to_server(sftp_direct, args.list, &in, &out);
1.1 djm 1670: }
1.70 djm 1671: freeargs(&args);
1.1 djm 1672:
1.33 djm 1673: err = interactive_loop(in, out, file1, file2);
1.1 djm 1674:
1675: close(in);
1676: close(out);
1.39 djm 1677: if (batchmode)
1.10 deraadt 1678: fclose(infile);
1.1 djm 1679:
1.28 markus 1680: while (waitpid(sshpid, NULL, 0) == -1)
1681: if (errno != EINTR)
1682: fatal("Couldn't wait for ssh process: %s",
1683: strerror(errno));
1.1 djm 1684:
1.33 djm 1685: exit(err == 0 ? 0 : 1);
1.1 djm 1686: }