1 /* $OpenBSD: sftp.c,v 1.100 2008/04/18 12:32:11 djm Exp $ */
3 * Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org>
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.
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.
20 #include <sys/types.h>
21 #include <sys/ioctl.h>
22 #ifdef HAVE_SYS_STAT_H
23 # include <sys/stat.h>
25 #include <sys/param.h>
26 #include <sys/socket.h>
28 #include <sys/statvfs.h>
39 typedef void EditLine;
51 #include "pathnames.h"
56 #include "sftp-common.h"
57 #include "sftp-client.h"
59 /* File to read commands from */
62 /* Are we in batchfile mode? */
65 /* Size of buffer used when copying files */
66 size_t copy_buffer_len = 32768;
68 /* Number of concurrent outstanding requests */
69 size_t num_requests = 16;
71 /* PID of ssh transport process */
72 static pid_t sshpid = -1;
74 /* This is set to 0 if the progressmeter is not desired. */
77 /* SIGINT received during command processing */
78 volatile sig_atomic_t interrupted = 0;
80 /* I wish qsort() took a separate ctx for the comparison function...*/
83 int remote_glob(struct sftp_conn *, const char *, int,
84 int (*)(const char *, int), glob_t *); /* proto for sftp-glob.c */
86 extern char *__progname;
88 /* Separators for interactive commands */
89 #define WHITESPACE " \t\r\n"
92 #define LS_LONG_VIEW 0x01 /* Full view ala ls -l */
93 #define LS_SHORT_VIEW 0x02 /* Single row view ala ls -1 */
94 #define LS_NUMERIC_VIEW 0x04 /* Long view with numeric uid/gid */
95 #define LS_NAME_SORT 0x08 /* Sort by name (default) */
96 #define LS_TIME_SORT 0x10 /* Sort by mtime */
97 #define LS_SIZE_SORT 0x20 /* Sort by file size */
98 #define LS_REVERSE_SORT 0x40 /* Reverse sort order */
99 #define LS_SHOW_ALL 0x80 /* Don't skip filenames starting with '.' */
101 #define VIEW_FLAGS (LS_LONG_VIEW|LS_SHORT_VIEW|LS_NUMERIC_VIEW)
102 #define SORT_FLAGS (LS_NAME_SORT|LS_TIME_SORT|LS_SIZE_SORT)
104 /* Commands for interactive mode */
128 #define I_PROGRESS 23
135 static const struct CMD cmds[] = {
138 { "chdir", I_CHDIR },
139 { "chgrp", I_CHGRP },
140 { "chmod", I_CHMOD },
141 { "chown", I_CHOWN },
149 { "lchdir", I_LCHDIR },
151 { "lmkdir", I_LMKDIR },
155 { "lumask", I_LUMASK },
156 { "mkdir", I_MKDIR },
157 { "progress", I_PROGRESS },
162 { "rename", I_RENAME },
164 { "rmdir", I_RMDIR },
165 { "symlink", I_SYMLINK },
166 { "version", I_VERSION },
172 int interactive_loop(int fd_in, int fd_out, char *file1, char *file2);
179 kill(sshpid, SIGTERM);
180 waitpid(sshpid, NULL, 0);
188 cmd_interrupt(int signo)
190 const char msg[] = "\rInterrupt \n";
191 int olderrno = errno;
193 write(STDERR_FILENO, msg, sizeof(msg) - 1);
201 printf("Available commands:\n");
202 printf("cd path Change remote directory to 'path'\n");
203 printf("lcd path Change local directory to 'path'\n");
204 printf("chgrp grp path Change group of file 'path' to 'grp'\n");
205 printf("chmod mode path Change permissions of file 'path' to 'mode'\n");
206 printf("chown own path Change owner of file 'path' to 'own'\n");
207 printf("df [path] Display statistics for current directory or\n");
208 printf(" filesystem containing 'path'\n");
209 printf("help Display this help text\n");
210 printf("get remote-path [local-path] Download file\n");
211 printf("lls [ls-options [path]] Display local directory listing\n");
212 printf("ln oldpath newpath Symlink remote file\n");
213 printf("lmkdir path Create local directory\n");
214 printf("lpwd Print local working directory\n");
215 printf("ls [path] Display remote directory listing\n");
216 printf("lumask umask Set local umask to 'umask'\n");
217 printf("mkdir path Create remote directory\n");
218 printf("progress Toggle display of progress meter\n");
219 printf("put local-path [remote-path] Upload file\n");
220 printf("pwd Display remote working directory\n");
221 printf("exit Quit sftp\n");
222 printf("quit Quit sftp\n");
223 printf("rename oldpath newpath Rename remote file\n");
224 printf("rmdir path Remove remote directory\n");
225 printf("rm path Delete remote file\n");
226 printf("symlink oldpath newpath Symlink remote file\n");
227 printf("version Show SFTP version\n");
228 printf("!command Execute 'command' in local shell\n");
229 printf("! Escape to local shell\n");
230 printf("? Synonym for help\n");
234 local_do_shell(const char *args)
243 if ((shell = getenv("SHELL")) == NULL)
244 shell = _PATH_BSHELL;
246 if ((pid = fork()) == -1)
247 fatal("Couldn't fork: %s", strerror(errno));
250 /* XXX: child has pipe fds to ssh subproc open - issue? */
252 debug3("Executing %s -c \"%s\"", shell, args);
253 execl(shell, shell, "-c", args, (char *)NULL);
255 debug3("Executing %s", shell);
256 execl(shell, shell, (char *)NULL);
258 fprintf(stderr, "Couldn't execute \"%s\": %s\n", shell,
262 while (waitpid(pid, &status, 0) == -1)
264 fatal("Couldn't wait for child: %s", strerror(errno));
265 if (!WIFEXITED(status))
266 error("Shell exited abnormally");
267 else if (WEXITSTATUS(status))
268 error("Shell exited with status %d", WEXITSTATUS(status));
272 local_do_ls(const char *args)
275 local_do_shell(_PATH_LS);
277 int len = strlen(_PATH_LS " ") + strlen(args) + 1;
278 char *buf = xmalloc(len);
280 /* XXX: quoting - rip quoting code from ftp? */
281 snprintf(buf, len, _PATH_LS " %s", args);
287 /* Strip one path (usually the pwd) from the start of another */
289 path_strip(char *path, char *strip)
294 return (xstrdup(path));
297 if (strncmp(path, strip, len) == 0) {
298 if (strip[len - 1] != '/' && path[len] == '/')
300 return (xstrdup(path + len));
303 return (xstrdup(path));
307 path_append(char *p1, char *p2)
310 size_t len = strlen(p1) + strlen(p2) + 2;
313 strlcpy(ret, p1, len);
314 if (p1[0] != '\0' && p1[strlen(p1) - 1] != '/')
315 strlcat(ret, "/", len);
316 strlcat(ret, p2, len);
322 make_absolute(char *p, char *pwd)
327 if (p && p[0] != '/') {
328 abs_str = path_append(pwd, p);
336 infer_path(const char *p, char **ifp)
340 cp = strrchr(p, '/');
347 error("Invalid path");
351 *ifp = xstrdup(cp + 1);
356 parse_getput_flags(const char *cmd, char **argv, int argc, int *pflag)
358 extern int optind, optreset, opterr;
361 optind = optreset = 1;
365 while ((ch = getopt(argc, argv, "Pp")) != -1) {
372 error("%s: Invalid flag -%c", cmd, ch);
381 parse_ls_flags(char **argv, int argc, int *lflag)
383 extern int optind, optreset, opterr;
386 optind = optreset = 1;
389 *lflag = LS_NAME_SORT;
390 while ((ch = getopt(argc, argv, "1Saflnrt")) != -1) {
393 *lflag &= ~VIEW_FLAGS;
394 *lflag |= LS_SHORT_VIEW;
397 *lflag &= ~SORT_FLAGS;
398 *lflag |= LS_SIZE_SORT;
401 *lflag |= LS_SHOW_ALL;
404 *lflag &= ~SORT_FLAGS;
407 *lflag &= ~VIEW_FLAGS;
408 *lflag |= LS_LONG_VIEW;
411 *lflag &= ~VIEW_FLAGS;
412 *lflag |= LS_NUMERIC_VIEW|LS_LONG_VIEW;
415 *lflag |= LS_REVERSE_SORT;
418 *lflag &= ~SORT_FLAGS;
419 *lflag |= LS_TIME_SORT;
422 error("ls: Invalid flag -%c", ch);
431 parse_df_flags(const char *cmd, char **argv, int argc, int *hflag, int *iflag)
433 extern int optind, optreset, opterr;
436 optind = optreset = 1;
440 while ((ch = getopt(argc, argv, "hi")) != -1) {
449 error("%s: Invalid flag -%c", cmd, ch);
462 /* XXX: report errors? */
463 if (stat(path, &sb) == -1)
466 return(S_ISDIR(sb.st_mode));
470 remote_is_dir(struct sftp_conn *conn, char *path)
474 /* XXX: report errors? */
475 if ((a = do_stat(conn, path, 1)) == NULL)
477 if (!(a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS))
479 return(S_ISDIR(a->perm));
483 process_get(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag)
485 char *abs_src = NULL;
486 char *abs_dst = NULL;
492 abs_src = xstrdup(src);
493 abs_src = make_absolute(abs_src, pwd);
495 memset(&g, 0, sizeof(g));
496 debug3("Looking up %s", abs_src);
497 if (remote_glob(conn, abs_src, 0, NULL, &g)) {
498 error("File \"%s\" not found.", abs_src);
503 /* If multiple matches, dst must be a directory or unspecified */
504 if (g.gl_matchc > 1 && dst && !is_dir(dst)) {
505 error("Multiple files match, but \"%s\" is not a directory",
511 for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
512 if (infer_path(g.gl_pathv[i], &tmp)) {
517 if (g.gl_matchc == 1 && dst) {
518 /* If directory specified, append filename */
521 if (infer_path(g.gl_pathv[0], &tmp)) {
525 abs_dst = path_append(dst, tmp);
528 abs_dst = xstrdup(dst);
530 abs_dst = path_append(dst, tmp);
535 printf("Fetching %s to %s\n", g.gl_pathv[i], abs_dst);
536 if (do_download(conn, g.gl_pathv[i], abs_dst, pflag) == -1)
549 process_put(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag)
551 char *tmp_dst = NULL;
552 char *abs_dst = NULL;
560 tmp_dst = xstrdup(dst);
561 tmp_dst = make_absolute(tmp_dst, pwd);
564 memset(&g, 0, sizeof(g));
565 debug3("Looking up %s", src);
566 if (glob(src, GLOB_NOCHECK, NULL, &g)) {
567 error("File \"%s\" not found.", src);
572 /* If multiple matches, dst may be directory or unspecified */
573 if (g.gl_matchc > 1 && tmp_dst && !remote_is_dir(conn, tmp_dst)) {
574 error("Multiple files match, but \"%s\" is not a directory",
580 for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
581 if (stat(g.gl_pathv[i], &sb) == -1) {
583 error("stat %s: %s", g.gl_pathv[i], strerror(errno));
587 if (!S_ISREG(sb.st_mode)) {
588 error("skipping non-regular file %s",
592 if (infer_path(g.gl_pathv[i], &tmp)) {
597 if (g.gl_matchc == 1 && tmp_dst) {
598 /* If directory specified, append filename */
599 if (remote_is_dir(conn, tmp_dst)) {
600 if (infer_path(g.gl_pathv[0], &tmp)) {
604 abs_dst = path_append(tmp_dst, tmp);
607 abs_dst = xstrdup(tmp_dst);
609 } else if (tmp_dst) {
610 abs_dst = path_append(tmp_dst, tmp);
613 abs_dst = make_absolute(tmp, pwd);
615 printf("Uploading %s to %s\n", g.gl_pathv[i], abs_dst);
616 if (do_upload(conn, g.gl_pathv[i], abs_dst, pflag) == -1)
630 sdirent_comp(const void *aa, const void *bb)
632 SFTP_DIRENT *a = *(SFTP_DIRENT **)aa;
633 SFTP_DIRENT *b = *(SFTP_DIRENT **)bb;
634 int rmul = sort_flag & LS_REVERSE_SORT ? -1 : 1;
636 #define NCMP(a,b) (a == b ? 0 : (a < b ? 1 : -1))
637 if (sort_flag & LS_NAME_SORT)
638 return (rmul * strcmp(a->filename, b->filename));
639 else if (sort_flag & LS_TIME_SORT)
640 return (rmul * NCMP(a->a.mtime, b->a.mtime));
641 else if (sort_flag & LS_SIZE_SORT)
642 return (rmul * NCMP(a->a.size, b->a.size));
644 fatal("Unknown ls sort type");
647 /* sftp ls.1 replacement for directories */
649 do_ls_dir(struct sftp_conn *conn, char *path, char *strip_path, int lflag)
652 u_int c = 1, colspace = 0, columns = 1;
655 if ((n = do_readdir(conn, path, &d)) != 0)
658 if (!(lflag & LS_SHORT_VIEW)) {
659 u_int m = 0, width = 80;
663 /* Count entries for sort and find longest filename */
664 for (n = 0; d[n] != NULL; n++) {
665 if (d[n]->filename[0] != '.' || (lflag & LS_SHOW_ALL))
666 m = MAX(m, strlen(d[n]->filename));
669 /* Add any subpath that also needs to be counted */
670 tmp = path_strip(path, strip_path);
674 if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1)
677 columns = width / (m + 2);
678 columns = MAX(columns, 1);
679 colspace = width / columns;
680 colspace = MIN(colspace, width);
683 if (lflag & SORT_FLAGS) {
684 for (n = 0; d[n] != NULL; n++)
685 ; /* count entries */
686 sort_flag = lflag & (SORT_FLAGS|LS_REVERSE_SORT);
687 qsort(d, n, sizeof(*d), sdirent_comp);
690 for (n = 0; d[n] != NULL && !interrupted; n++) {
693 if (d[n]->filename[0] == '.' && !(lflag & LS_SHOW_ALL))
696 tmp = path_append(path, d[n]->filename);
697 fname = path_strip(tmp, strip_path);
700 if (lflag & LS_LONG_VIEW) {
701 if (lflag & LS_NUMERIC_VIEW) {
705 memset(&sb, 0, sizeof(sb));
706 attrib_to_stat(&d[n]->a, &sb);
707 lname = ls_file(fname, &sb, 1);
708 printf("%s\n", lname);
711 printf("%s\n", d[n]->longname);
713 printf("%-*s", colspace, fname);
724 if (!(lflag & LS_LONG_VIEW) && (c != 1))
727 free_sftp_dirents(d);
731 /* sftp ls.1 replacement which handles path globs */
733 do_globbed_ls(struct sftp_conn *conn, char *path, char *strip_path,
737 u_int i, c = 1, colspace = 0, columns = 1;
740 memset(&g, 0, sizeof(g));
742 if (remote_glob(conn, path, GLOB_MARK|GLOB_NOCHECK|GLOB_BRACE,
743 NULL, &g) || (g.gl_pathc && !g.gl_matchc)) {
746 error("Can't ls: \"%s\" not found", path);
754 * If the glob returns a single match and it is a directory,
755 * then just list its contents.
757 if (g.gl_matchc == 1) {
758 if ((a = do_lstat(conn, g.gl_pathv[0], 1)) == NULL) {
762 if ((a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) &&
766 err = do_ls_dir(conn, g.gl_pathv[0], strip_path, lflag);
772 if (!(lflag & LS_SHORT_VIEW)) {
773 u_int m = 0, width = 80;
776 /* Count entries for sort and find longest filename */
777 for (i = 0; g.gl_pathv[i]; i++)
778 m = MAX(m, strlen(g.gl_pathv[i]));
780 if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1)
783 columns = width / (m + 2);
784 columns = MAX(columns, 1);
785 colspace = width / columns;
788 for (i = 0; g.gl_pathv[i] && !interrupted; i++, a = NULL) {
791 fname = path_strip(g.gl_pathv[i], strip_path);
793 if (lflag & LS_LONG_VIEW) {
798 * XXX: this is slow - 1 roundtrip per path
799 * A solution to this is to fork glob() and
800 * build a sftp specific version which keeps the
801 * attribs (which currently get thrown away)
802 * that the server returns as well as the filenames.
804 memset(&sb, 0, sizeof(sb));
806 a = do_lstat(conn, g.gl_pathv[i], 1);
808 attrib_to_stat(a, &sb);
809 lname = ls_file(fname, &sb, 1);
810 printf("%s\n", lname);
813 printf("%-*s", colspace, fname);
823 if (!(lflag & LS_LONG_VIEW) && (c != 1))
834 do_df(struct sftp_conn *conn, char *path, int hflag, int iflag)
837 char s_used[FMT_SCALED_STRSIZE];
838 char s_avail[FMT_SCALED_STRSIZE];
839 char s_root[FMT_SCALED_STRSIZE];
840 char s_total[FMT_SCALED_STRSIZE];
842 if (do_statvfs(conn, path, &st, 1) == -1)
845 printf(" Inodes Used Avail "
846 "(root) %%Capacity\n");
847 printf("%11llu %11llu %11llu %11llu %3llu%%\n",
848 (unsigned long long)st.f_files,
849 (unsigned long long)(st.f_files - st.f_ffree),
850 (unsigned long long)st.f_favail,
851 (unsigned long long)st.f_ffree,
852 (unsigned long long)(100 * (st.f_files - st.f_ffree) /
855 strlcpy(s_used, "error", sizeof(s_used));
856 strlcpy(s_avail, "error", sizeof(s_avail));
857 strlcpy(s_root, "error", sizeof(s_root));
858 strlcpy(s_total, "error", sizeof(s_total));
859 fmt_scaled((st.f_blocks - st.f_bfree) * st.f_frsize, s_used);
860 fmt_scaled(st.f_bavail * st.f_frsize, s_avail);
861 fmt_scaled(st.f_bfree * st.f_frsize, s_root);
862 fmt_scaled(st.f_blocks * st.f_frsize, s_total);
863 printf(" Size Used Avail (root) %%Capacity\n");
864 printf("%7sB %7sB %7sB %7sB %3llu%%\n",
865 s_total, s_used, s_avail, s_root,
866 (unsigned long long)(100 * (st.f_blocks - st.f_bfree) /
869 printf(" Size Used Avail "
870 "(root) %%Capacity\n");
871 printf("%12llu %12llu %12llu %12llu %3llu%%\n",
872 (unsigned long long)(st.f_frsize * st.f_blocks / 1024),
873 (unsigned long long)(st.f_frsize *
874 (st.f_blocks - st.f_bfree) / 1024),
875 (unsigned long long)(st.f_frsize * st.f_bavail / 1024),
876 (unsigned long long)(st.f_frsize * st.f_bfree / 1024),
877 (unsigned long long)(100 * (st.f_blocks - st.f_bfree) /
884 * Undo escaping of glob sequences in place. Used to undo extra escaping
885 * applied in makeargv() when the string is destined for a function that
889 undo_glob_escape(char *s)
924 * Split a string into an argument vector using sh(1)-style quoting,
925 * comment and escaping rules, but with some tweaks to handle glob(3)
927 * Returns NULL on error or a NULL-terminated array of arguments.
930 #define MAXARGLEN 8192
932 makeargv(const char *arg, int *argcp)
936 static char argvs[MAXARGLEN];
937 static char *argv[MAXARGS + 1];
938 enum { MA_START, MA_SQUOTE, MA_DQUOTE, MA_UNQUOTED } state, q;
941 if (strlen(arg) > sizeof(argvs) - 1) {
943 error("string too long");
949 if (isspace(arg[i])) {
950 if (state == MA_UNQUOTED) {
951 /* Terminate current argument */
955 } else if (state != MA_START)
957 } else if (arg[i] == '"' || arg[i] == '\'') {
958 q = arg[i] == '"' ? MA_DQUOTE : MA_SQUOTE;
959 if (state == MA_START) {
960 argv[argc] = argvs + j;
962 } else if (state == MA_UNQUOTED)
968 } else if (arg[i] == '\\') {
969 if (state == MA_SQUOTE || state == MA_DQUOTE) {
970 quot = state == MA_SQUOTE ? '\'' : '"';
971 /* Unescape quote we are in */
972 /* XXX support \n and friends? */
973 if (arg[i + 1] == quot) {
976 } else if (arg[i + 1] == '?' ||
977 arg[i + 1] == '[' || arg[i + 1] == '*') {
979 * Special case for sftp: append
980 * double-escaped glob sequence -
981 * glob will undo one level of
982 * escaping. NB. string can grow here.
984 if (j >= sizeof(argvs) - 5)
987 argvs[j++] = arg[i++];
991 argvs[j++] = arg[i++];
995 if (state == MA_START) {
996 argv[argc] = argvs + j;
999 if (arg[i + 1] == '?' || arg[i + 1] == '[' ||
1000 arg[i + 1] == '*' || arg[i + 1] == '\\') {
1002 * Special case for sftp: append
1003 * escaped glob sequence -
1004 * glob will undo one level of
1007 argvs[j++] = arg[i++];
1008 argvs[j++] = arg[i];
1010 /* Unescape everything */
1011 /* XXX support \n and friends? */
1013 argvs[j++] = arg[i];
1016 } else if (arg[i] == '#') {
1017 if (state == MA_SQUOTE || state == MA_DQUOTE)
1018 argvs[j++] = arg[i];
1021 } else if (arg[i] == '\0') {
1022 if (state == MA_SQUOTE || state == MA_DQUOTE) {
1023 error("Unterminated quoted argument");
1027 if (state == MA_UNQUOTED) {
1033 if (state == MA_START) {
1034 argv[argc] = argvs + j;
1035 state = MA_UNQUOTED;
1037 if ((state == MA_SQUOTE || state == MA_DQUOTE) &&
1038 (arg[i] == '?' || arg[i] == '[' || arg[i] == '*')) {
1040 * Special case for sftp: escape quoted
1041 * glob(3) wildcards. NB. string can grow
1044 if (j >= sizeof(argvs) - 3)
1045 goto args_too_longs;
1047 argvs[j++] = arg[i];
1049 argvs[j++] = arg[i];
1058 parse_args(const char **cpp, int *pflag, int *lflag, int *iflag, int *hflag,
1059 unsigned long *n_arg, char **path1, char **path2)
1061 const char *cmd, *cp = *cpp;
1065 int i, cmdnum, optidx, argc;
1067 /* Skip leading whitespace */
1068 cp = cp + strspn(cp, WHITESPACE);
1070 /* Ignore blank lines and lines which begin with comment '#' char */
1071 if (*cp == '\0' || *cp == '#')
1074 /* Check for leading '-' (disable error processing) */
1081 if ((argv = makeargv(cp, &argc)) == NULL)
1084 /* Figure out which command we have */
1085 for (i = 0; cmds[i].c != NULL; i++) {
1086 if (strcasecmp(cmds[i].c, argv[0]) == 0)
1096 } else if (cmdnum == -1) {
1097 error("Invalid command.");
1101 /* Get arguments and parse flags */
1102 *lflag = *pflag = *hflag = *n_arg = 0;
1103 *path1 = *path2 = NULL;
1108 if ((optidx = parse_getput_flags(cmd, argv, argc, pflag)) == -1)
1110 /* Get first pathname (mandatory) */
1111 if (argc - optidx < 1) {
1112 error("You must specify at least one path after a "
1113 "%s command.", cmd);
1116 *path1 = xstrdup(argv[optidx]);
1117 /* Get second pathname (optional) */
1118 if (argc - optidx > 1) {
1119 *path2 = xstrdup(argv[optidx + 1]);
1120 /* Destination is not globbed */
1121 undo_glob_escape(*path2);
1126 if (argc - optidx < 2) {
1127 error("You must specify two paths after a %s "
1131 *path1 = xstrdup(argv[optidx]);
1132 *path2 = xstrdup(argv[optidx + 1]);
1133 /* Paths are not globbed */
1134 undo_glob_escape(*path1);
1135 undo_glob_escape(*path2);
1143 /* Get pathname (mandatory) */
1144 if (argc - optidx < 1) {
1145 error("You must specify a path after a %s command.",
1149 *path1 = xstrdup(argv[optidx]);
1150 /* Only "rm" globs */
1152 undo_glob_escape(*path1);
1155 if ((optidx = parse_df_flags(cmd, argv, argc, hflag,
1158 /* Default to current directory if no path specified */
1159 if (argc - optidx < 1)
1162 *path1 = xstrdup(argv[optidx]);
1163 undo_glob_escape(*path1);
1167 if ((optidx = parse_ls_flags(argv, argc, lflag)) == -1)
1169 /* Path is optional */
1170 if (argc - optidx > 0)
1171 *path1 = xstrdup(argv[optidx]);
1174 /* Skip ls command and following whitespace */
1175 cp = cp + strlen(cmd) + strspn(cp, WHITESPACE);
1177 /* Uses the rest of the line */
1184 /* Get numeric arg (mandatory) */
1185 if (argc - optidx < 1)
1188 l = strtol(argv[optidx], &cp2, base);
1189 if (cp2 == argv[optidx] || *cp2 != '\0' ||
1190 ((l == LONG_MIN || l == LONG_MAX) && errno == ERANGE) ||
1193 error("You must supply a numeric argument "
1194 "to the %s command.", cmd);
1198 if (cmdnum == I_LUMASK)
1200 /* Get pathname (mandatory) */
1201 if (argc - optidx < 2) {
1202 error("You must specify a path after a %s command.",
1206 *path1 = xstrdup(argv[optidx + 1]);
1216 fatal("Command not implemented");
1224 parse_dispatch_command(struct sftp_conn *conn, const char *cmd, char **pwd,
1227 char *path1, *path2, *tmp;
1228 int pflag, lflag, iflag, hflag, cmdnum, i;
1229 unsigned long n_arg;
1231 char path_buf[MAXPATHLEN];
1235 path1 = path2 = NULL;
1236 cmdnum = parse_args(&cmd, &pflag, &lflag, &iflag, &hflag, &n_arg,
1242 memset(&g, 0, sizeof(g));
1244 /* Perform command */
1250 /* Unrecognized command */
1254 err = process_get(conn, path1, path2, *pwd, pflag);
1257 err = process_put(conn, path1, path2, *pwd, pflag);
1260 path1 = make_absolute(path1, *pwd);
1261 path2 = make_absolute(path2, *pwd);
1262 err = do_rename(conn, path1, path2);
1265 path2 = make_absolute(path2, *pwd);
1266 err = do_symlink(conn, path1, path2);
1269 path1 = make_absolute(path1, *pwd);
1270 remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
1271 for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1272 printf("Removing %s\n", g.gl_pathv[i]);
1273 err = do_rm(conn, g.gl_pathv[i]);
1274 if (err != 0 && err_abort)
1279 path1 = make_absolute(path1, *pwd);
1281 a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
1283 err = do_mkdir(conn, path1, &a);
1286 path1 = make_absolute(path1, *pwd);
1287 err = do_rmdir(conn, path1);
1290 path1 = make_absolute(path1, *pwd);
1291 if ((tmp = do_realpath(conn, path1)) == NULL) {
1295 if ((aa = do_stat(conn, tmp, 0)) == NULL) {
1300 if (!(aa->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)) {
1301 error("Can't change directory: Can't check target");
1306 if (!S_ISDIR(aa->perm)) {
1307 error("Can't change directory: \"%s\" is not "
1308 "a directory", tmp);
1318 do_globbed_ls(conn, *pwd, *pwd, lflag);
1322 /* Strip pwd off beginning of non-absolute paths */
1327 path1 = make_absolute(path1, *pwd);
1328 err = do_globbed_ls(conn, path1, tmp, lflag);
1331 /* Default to current directory if no path specified */
1333 path1 = xstrdup(*pwd);
1334 path1 = make_absolute(path1, *pwd);
1335 err = do_df(conn, path1, hflag, iflag);
1338 if (chdir(path1) == -1) {
1339 error("Couldn't change local directory to "
1340 "\"%s\": %s", path1, strerror(errno));
1345 if (mkdir(path1, 0777) == -1) {
1346 error("Couldn't create local directory "
1347 "\"%s\": %s", path1, strerror(errno));
1355 local_do_shell(cmd);
1359 printf("Local umask: %03lo\n", n_arg);
1362 path1 = make_absolute(path1, *pwd);
1364 a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
1366 remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
1367 for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1368 printf("Changing mode on %s\n", g.gl_pathv[i]);
1369 err = do_setstat(conn, g.gl_pathv[i], &a);
1370 if (err != 0 && err_abort)
1376 path1 = make_absolute(path1, *pwd);
1377 remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
1378 for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1379 if (!(aa = do_stat(conn, g.gl_pathv[i], 0))) {
1380 if (err != 0 && err_abort)
1385 if (!(aa->flags & SSH2_FILEXFER_ATTR_UIDGID)) {
1386 error("Can't get current ownership of "
1387 "remote file \"%s\"", g.gl_pathv[i]);
1388 if (err != 0 && err_abort)
1393 aa->flags &= SSH2_FILEXFER_ATTR_UIDGID;
1394 if (cmdnum == I_CHOWN) {
1395 printf("Changing owner on %s\n", g.gl_pathv[i]);
1398 printf("Changing group on %s\n", g.gl_pathv[i]);
1401 err = do_setstat(conn, g.gl_pathv[i], aa);
1402 if (err != 0 && err_abort)
1407 printf("Remote working directory: %s\n", *pwd);
1410 if (!getcwd(path_buf, sizeof(path_buf))) {
1411 error("Couldn't get local cwd: %s", strerror(errno));
1415 printf("Local working directory: %s\n", path_buf);
1418 /* Processed below */
1424 printf("SFTP protocol version %u\n", sftp_proto_version(conn));
1427 showprogress = !showprogress;
1429 printf("Progress meter enabled\n");
1431 printf("Progress meter disabled\n");
1434 fatal("%d is not implemented", cmdnum);
1444 /* If an unignored error occurs in batch mode we should abort. */
1445 if (err_abort && err != 0)
1447 else if (cmdnum == I_QUIT)
1455 prompt(EditLine *el)
1462 interactive_loop(int fd_in, int fd_out, char *file1, char *file2)
1467 struct sftp_conn *conn;
1468 int err, interactive;
1469 EditLine *el = NULL;
1473 extern char *__progname;
1475 if (!batchmode && isatty(STDIN_FILENO)) {
1476 if ((el = el_init(__progname, stdin, stdout, stderr)) == NULL)
1477 fatal("Couldn't initialise editline");
1478 if ((hl = history_init()) == NULL)
1479 fatal("Couldn't initialise editline history");
1480 history(hl, &hev, H_SETSIZE, 100);
1481 el_set(el, EL_HIST, history, hl);
1483 el_set(el, EL_PROMPT, prompt);
1484 el_set(el, EL_EDITOR, "emacs");
1485 el_set(el, EL_TERMINAL, NULL);
1486 el_set(el, EL_SIGNAL, 1);
1487 el_source(el, NULL);
1489 #endif /* USE_LIBEDIT */
1491 conn = do_init(fd_in, fd_out, copy_buffer_len, num_requests);
1493 fatal("Couldn't initialise connection to server");
1495 pwd = do_realpath(conn, ".");
1499 if (file1 != NULL) {
1500 dir = xstrdup(file1);
1501 dir = make_absolute(dir, pwd);
1503 if (remote_is_dir(conn, dir) && file2 == NULL) {
1504 printf("Changing to: %s\n", dir);
1505 snprintf(cmd, sizeof cmd, "cd \"%s\"", dir);
1506 if (parse_dispatch_command(conn, cmd, &pwd, 1) != 0) {
1514 snprintf(cmd, sizeof cmd, "get %s", dir);
1516 snprintf(cmd, sizeof cmd, "get %s %s", dir,
1519 err = parse_dispatch_command(conn, cmd, &pwd, 1);
1528 #if defined(HAVE_SETVBUF) && !defined(BROKEN_SETVBUF)
1529 setvbuf(stdout, NULL, _IOLBF, 0);
1530 setvbuf(infile, NULL, _IOLBF, 0);
1536 interactive = !batchmode && isatty(STDIN_FILENO);
1541 signal(SIGINT, SIG_IGN);
1546 if (fgets(cmd, sizeof(cmd), infile) == NULL) {
1551 if (!interactive) { /* Echo command */
1552 printf("sftp> %s", cmd);
1553 if (strlen(cmd) > 0 &&
1554 cmd[strlen(cmd) - 1] != '\n')
1562 if ((line = el_gets(el, &count)) == NULL || count <= 0) {
1566 history(hl, &hev, H_ENTER, line);
1567 if (strlcpy(cmd, line, sizeof(cmd)) >= sizeof(cmd)) {
1568 fprintf(stderr, "Error: input line too long\n");
1571 #endif /* USE_LIBEDIT */
1574 cp = strrchr(cmd, '\n');
1578 /* Handle user interrupts gracefully during commands */
1580 signal(SIGINT, cmd_interrupt);
1582 err = parse_dispatch_command(conn, cmd, &pwd, batchmode);
1592 #endif /* USE_LIBEDIT */
1594 /* err == 1 signifies normal "quit" exit */
1595 return (err >= 0 ? 0 : -1);
1599 connect_to_server(char *path, char **args, int *in, int *out)
1604 int pin[2], pout[2];
1606 if ((pipe(pin) == -1) || (pipe(pout) == -1))
1607 fatal("pipe: %s", strerror(errno));
1612 #else /* USE_PIPES */
1615 if (socketpair(AF_UNIX, SOCK_STREAM, 0, inout) == -1)
1616 fatal("socketpair: %s", strerror(errno));
1617 *in = *out = inout[0];
1618 c_in = c_out = inout[1];
1619 #endif /* USE_PIPES */
1621 if ((sshpid = fork()) == -1)
1622 fatal("fork: %s", strerror(errno));
1623 else if (sshpid == 0) {
1624 if ((dup2(c_in, STDIN_FILENO) == -1) ||
1625 (dup2(c_out, STDOUT_FILENO) == -1)) {
1626 fprintf(stderr, "dup2: %s\n", strerror(errno));
1635 * The underlying ssh is in the same process group, so we must
1636 * ignore SIGINT if we want to gracefully abort commands,
1637 * otherwise the signal will make it to the ssh process and
1640 signal(SIGINT, SIG_IGN);
1642 fprintf(stderr, "exec: %s: %s\n", path, strerror(errno));
1646 signal(SIGTERM, killchild);
1647 signal(SIGINT, killchild);
1648 signal(SIGHUP, killchild);
1656 extern char *__progname;
1659 "usage: %s [-1Cv] [-B buffer_size] [-b batchfile] [-F ssh_config]\n"
1660 " [-o ssh_option] [-P sftp_server_path] [-R num_requests]\n"
1661 " [-S program] [-s subsystem | sftp_server] host\n"
1662 " %s [[user@]host[:file [file]]]\n"
1663 " %s [[user@]host[:dir[/]]]\n"
1664 " %s -b batchfile [user@]host\n", __progname, __progname, __progname, __progname);
1669 main(int argc, char **argv)
1671 int in, out, ch, err;
1672 char *host, *userhost, *cp, *file2 = NULL;
1673 int debug_level = 0, sshver = 2;
1674 char *file1 = NULL, *sftp_server = NULL;
1675 char *ssh_program = _PATH_SSH_PROGRAM, *sftp_direct = NULL;
1676 LogLevel ll = SYSLOG_LEVEL_INFO;
1679 extern char *optarg;
1681 /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */
1684 __progname = ssh_get_progname(argv[0]);
1685 memset(&args, '\0', sizeof(args));
1687 addargs(&args, "%s", ssh_program);
1688 addargs(&args, "-oForwardX11 no");
1689 addargs(&args, "-oForwardAgent no");
1690 addargs(&args, "-oPermitLocalCommand no");
1691 addargs(&args, "-oClearAllForwardings yes");
1693 ll = SYSLOG_LEVEL_INFO;
1696 while ((ch = getopt(argc, argv, "1hvCo:s:S:b:B:F:P:R:")) != -1) {
1699 addargs(&args, "-C");
1702 if (debug_level < 3) {
1703 addargs(&args, "-v");
1704 ll = SYSLOG_LEVEL_DEBUG1 + debug_level;
1710 addargs(&args, "-%c%s", ch, optarg);
1714 if (sftp_server == NULL)
1715 sftp_server = _PATH_SFTP_SERVER;
1718 sftp_server = optarg;
1721 ssh_program = optarg;
1722 replacearg(&args, 0, "%s", ssh_program);
1726 fatal("Batch file already specified.");
1728 /* Allow "-" as stdin */
1729 if (strcmp(optarg, "-") != 0 &&
1730 (infile = fopen(optarg, "r")) == NULL)
1731 fatal("%s (%s).", strerror(errno), optarg);
1734 addargs(&args, "-obatchmode yes");
1737 sftp_direct = optarg;
1740 copy_buffer_len = strtol(optarg, &cp, 10);
1741 if (copy_buffer_len == 0 || *cp != '\0')
1742 fatal("Invalid buffer size \"%s\"", optarg);
1745 num_requests = strtol(optarg, &cp, 10);
1746 if (num_requests == 0 || *cp != '\0')
1747 fatal("Invalid number of requests \"%s\"",
1756 if (!isatty(STDERR_FILENO))
1759 log_init(argv[0], ll, SYSLOG_FACILITY_USER, 1);
1761 if (sftp_direct == NULL) {
1762 if (optind == argc || argc > (optind + 2))
1765 userhost = xstrdup(argv[optind]);
1766 file2 = argv[optind+1];
1768 if ((host = strrchr(userhost, '@')) == NULL)
1773 fprintf(stderr, "Missing username\n");
1776 addargs(&args, "-l%s", userhost);
1779 if ((cp = colon(host)) != NULL) {
1784 host = cleanhostname(host);
1786 fprintf(stderr, "Missing hostname\n");
1790 addargs(&args, "-oProtocol %d", sshver);
1792 /* no subsystem if the server-spec contains a '/' */
1793 if (sftp_server == NULL || strchr(sftp_server, '/') == NULL)
1794 addargs(&args, "-s");
1796 addargs(&args, "%s", host);
1797 addargs(&args, "%s", (sftp_server != NULL ?
1798 sftp_server : "sftp"));
1801 fprintf(stderr, "Connecting to %s...\n", host);
1802 connect_to_server(ssh_program, args.list, &in, &out);
1805 addargs(&args, "sftp-server");
1808 fprintf(stderr, "Attaching to %s...\n", sftp_direct);
1809 connect_to_server(sftp_direct, args.list, &in, &out);
1813 err = interactive_loop(in, out, file1, file2);
1815 #if !defined(USE_PIPES)
1816 shutdown(in, SHUT_RDWR);
1817 shutdown(out, SHUT_RDWR);
1825 while (waitpid(sshpid, NULL, 0) == -1)
1827 fatal("Couldn't wait for ssh process: %s",
1830 exit(err == 0 ? 0 : 1);