2 * Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org>
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19 RCSID("$OpenBSD: sftp.c,v 1.70 2006/01/31 10:19:02 djm Exp $");
24 typedef void EditLine;
30 #include "pathnames.h"
34 #include "sftp-common.h"
35 #include "sftp-client.h"
37 /* File to read commands from */
40 /* Are we in batchfile mode? */
43 /* Size of buffer used when copying files */
44 size_t copy_buffer_len = 32768;
46 /* Number of concurrent outstanding requests */
47 size_t num_requests = 16;
49 /* PID of ssh transport process */
50 static pid_t sshpid = -1;
52 /* This is set to 0 if the progressmeter is not desired. */
55 /* SIGINT received during command processing */
56 volatile sig_atomic_t interrupted = 0;
58 /* I wish qsort() took a separate ctx for the comparison function...*/
61 int remote_glob(struct sftp_conn *, const char *, int,
62 int (*)(const char *, int), glob_t *); /* proto for sftp-glob.c */
64 extern char *__progname;
66 /* Separators for interactive commands */
67 #define WHITESPACE " \t\r\n"
70 #define LS_LONG_VIEW 0x01 /* Full view ala ls -l */
71 #define LS_SHORT_VIEW 0x02 /* Single row view ala ls -1 */
72 #define LS_NUMERIC_VIEW 0x04 /* Long view with numeric uid/gid */
73 #define LS_NAME_SORT 0x08 /* Sort by name (default) */
74 #define LS_TIME_SORT 0x10 /* Sort by mtime */
75 #define LS_SIZE_SORT 0x20 /* Sort by file size */
76 #define LS_REVERSE_SORT 0x40 /* Reverse sort order */
77 #define LS_SHOW_ALL 0x80 /* Don't skip filenames starting with '.' */
79 #define VIEW_FLAGS (LS_LONG_VIEW|LS_SHORT_VIEW|LS_NUMERIC_VIEW)
80 #define SORT_FLAGS (LS_NAME_SORT|LS_TIME_SORT|LS_SIZE_SORT)
82 /* Commands for interactive mode */
105 #define I_PROGRESS 23
112 static const struct CMD cmds[] = {
115 { "chdir", I_CHDIR },
116 { "chgrp", I_CHGRP },
117 { "chmod", I_CHMOD },
118 { "chown", I_CHOWN },
125 { "lchdir", I_LCHDIR },
127 { "lmkdir", I_LMKDIR },
131 { "lumask", I_LUMASK },
132 { "mkdir", I_MKDIR },
133 { "progress", I_PROGRESS },
138 { "rename", I_RENAME },
140 { "rmdir", I_RMDIR },
141 { "symlink", I_SYMLINK },
142 { "version", I_VERSION },
148 int interactive_loop(int fd_in, int fd_out, char *file1, char *file2);
154 kill(sshpid, SIGTERM);
155 waitpid(sshpid, NULL, 0);
162 cmd_interrupt(int signo)
164 const char msg[] = "\rInterrupt \n";
165 int olderrno = errno;
167 write(STDERR_FILENO, msg, sizeof(msg) - 1);
175 printf("Available commands:\n");
176 printf("cd path Change remote directory to 'path'\n");
177 printf("lcd path Change local directory to 'path'\n");
178 printf("chgrp grp path Change group of file 'path' to 'grp'\n");
179 printf("chmod mode path Change permissions of file 'path' to 'mode'\n");
180 printf("chown own path Change owner of file 'path' to 'own'\n");
181 printf("help Display this help text\n");
182 printf("get remote-path [local-path] Download file\n");
183 printf("lls [ls-options [path]] Display local directory listing\n");
184 printf("ln oldpath newpath Symlink remote file\n");
185 printf("lmkdir path Create local directory\n");
186 printf("lpwd Print local working directory\n");
187 printf("ls [path] Display remote directory listing\n");
188 printf("lumask umask Set local umask to 'umask'\n");
189 printf("mkdir path Create remote directory\n");
190 printf("progress Toggle display of progress meter\n");
191 printf("put local-path [remote-path] Upload file\n");
192 printf("pwd Display remote working directory\n");
193 printf("exit Quit sftp\n");
194 printf("quit Quit sftp\n");
195 printf("rename oldpath newpath Rename remote file\n");
196 printf("rmdir path Remove remote directory\n");
197 printf("rm path Delete remote file\n");
198 printf("symlink oldpath newpath Symlink remote file\n");
199 printf("version Show SFTP version\n");
200 printf("!command Execute 'command' in local shell\n");
201 printf("! Escape to local shell\n");
202 printf("? Synonym for help\n");
206 local_do_shell(const char *args)
215 if ((shell = getenv("SHELL")) == NULL)
216 shell = _PATH_BSHELL;
218 if ((pid = fork()) == -1)
219 fatal("Couldn't fork: %s", strerror(errno));
222 /* XXX: child has pipe fds to ssh subproc open - issue? */
224 debug3("Executing %s -c \"%s\"", shell, args);
225 execl(shell, shell, "-c", args, (char *)NULL);
227 debug3("Executing %s", shell);
228 execl(shell, shell, (char *)NULL);
230 fprintf(stderr, "Couldn't execute \"%s\": %s\n", shell,
234 while (waitpid(pid, &status, 0) == -1)
236 fatal("Couldn't wait for child: %s", strerror(errno));
237 if (!WIFEXITED(status))
238 error("Shell exited abormally");
239 else if (WEXITSTATUS(status))
240 error("Shell exited with status %d", WEXITSTATUS(status));
244 local_do_ls(const char *args)
247 local_do_shell(_PATH_LS);
249 int len = strlen(_PATH_LS " ") + strlen(args) + 1;
250 char *buf = xmalloc(len);
252 /* XXX: quoting - rip quoting code from ftp? */
253 snprintf(buf, len, _PATH_LS " %s", args);
259 /* Strip one path (usually the pwd) from the start of another */
261 path_strip(char *path, char *strip)
266 return (xstrdup(path));
269 if (strncmp(path, strip, len) == 0) {
270 if (strip[len - 1] != '/' && path[len] == '/')
272 return (xstrdup(path + len));
275 return (xstrdup(path));
279 path_append(char *p1, char *p2)
282 int len = strlen(p1) + strlen(p2) + 2;
285 strlcpy(ret, p1, len);
286 if (p1[strlen(p1) - 1] != '/')
287 strlcat(ret, "/", len);
288 strlcat(ret, p2, len);
294 make_absolute(char *p, char *pwd)
299 if (p && p[0] != '/') {
300 abs_str = path_append(pwd, p);
308 infer_path(const char *p, char **ifp)
312 cp = strrchr(p, '/');
319 error("Invalid path");
323 *ifp = xstrdup(cp + 1);
328 parse_getput_flags(const char **cpp, int *pflag)
330 const char *cp = *cpp;
332 /* Check for flags */
333 if (cp[0] == '-' && cp[1] && strchr(WHITESPACE, cp[2])) {
340 error("Invalid flag -%c", cp[1]);
344 *cpp = cp + strspn(cp, WHITESPACE);
351 parse_ls_flags(const char **cpp, int *lflag)
353 const char *cp = *cpp;
356 *lflag = LS_NAME_SORT;
358 /* Check for flags */
359 if (cp++[0] == '-') {
360 for (; strchr(WHITESPACE, *cp) == NULL; cp++) {
363 *lflag &= ~VIEW_FLAGS;
364 *lflag |= LS_LONG_VIEW;
367 *lflag &= ~VIEW_FLAGS;
368 *lflag |= LS_SHORT_VIEW;
371 *lflag &= ~VIEW_FLAGS;
372 *lflag |= LS_NUMERIC_VIEW|LS_LONG_VIEW;
375 *lflag &= ~SORT_FLAGS;
376 *lflag |= LS_SIZE_SORT;
379 *lflag &= ~SORT_FLAGS;
380 *lflag |= LS_TIME_SORT;
383 *lflag |= LS_REVERSE_SORT;
386 *lflag &= ~SORT_FLAGS;
389 *lflag |= LS_SHOW_ALL;
392 error("Invalid flag -%c", *cp);
396 *cpp = cp + strspn(cp, WHITESPACE);
403 get_pathname(const char **cpp, char **path)
405 const char *cp = *cpp, *end;
409 cp += strspn(cp, WHITESPACE);
416 *path = xmalloc(strlen(cp) + 1);
418 /* Check for quoted filenames */
419 if (*cp == '\"' || *cp == '\'') {
422 /* Search for terminating quote, unescape some chars */
423 for (i = j = 0; i <= strlen(cp); i++) {
424 if (cp[i] == quot) { /* Found quote */
429 if (cp[i] == '\0') { /* End of string */
430 error("Unterminated quote");
433 if (cp[i] == '\\') { /* Escaped characters */
435 if (cp[i] != '\'' && cp[i] != '\"' &&
437 error("Bad escaped character '\\%c'",
442 (*path)[j++] = cp[i];
446 error("Empty quotes");
449 *cpp = cp + i + strspn(cp + i, WHITESPACE);
451 /* Read to end of filename */
452 end = strpbrk(cp, WHITESPACE);
454 end = strchr(cp, '\0');
455 *cpp = end + strspn(end, WHITESPACE);
457 memcpy(*path, cp, end - cp);
458 (*path)[end - cp] = '\0';
473 /* XXX: report errors? */
474 if (stat(path, &sb) == -1)
477 return(sb.st_mode & S_IFDIR);
485 if (stat(path, &sb) == -1)
486 fatal("stat %s: %s", path, strerror(errno));
488 return(S_ISREG(sb.st_mode));
492 remote_is_dir(struct sftp_conn *conn, char *path)
496 /* XXX: report errors? */
497 if ((a = do_stat(conn, path, 1)) == NULL)
499 if (!(a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS))
501 return(a->perm & S_IFDIR);
505 process_get(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag)
507 char *abs_src = NULL;
508 char *abs_dst = NULL;
514 abs_src = xstrdup(src);
515 abs_src = make_absolute(abs_src, pwd);
517 memset(&g, 0, sizeof(g));
518 debug3("Looking up %s", abs_src);
519 if (remote_glob(conn, abs_src, 0, NULL, &g)) {
520 error("File \"%s\" not found.", abs_src);
525 /* If multiple matches, dst must be a directory or unspecified */
526 if (g.gl_matchc > 1 && dst && !is_dir(dst)) {
527 error("Multiple files match, but \"%s\" is not a directory",
533 for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
534 if (infer_path(g.gl_pathv[i], &tmp)) {
539 if (g.gl_matchc == 1 && dst) {
540 /* If directory specified, append filename */
542 if (infer_path(g.gl_pathv[0], &tmp)) {
546 abs_dst = path_append(dst, tmp);
549 abs_dst = xstrdup(dst);
551 abs_dst = path_append(dst, tmp);
556 printf("Fetching %s to %s\n", g.gl_pathv[i], abs_dst);
557 if (do_download(conn, g.gl_pathv[i], abs_dst, pflag) == -1)
572 process_put(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag)
574 char *tmp_dst = NULL;
575 char *abs_dst = NULL;
582 tmp_dst = xstrdup(dst);
583 tmp_dst = make_absolute(tmp_dst, pwd);
586 memset(&g, 0, sizeof(g));
587 debug3("Looking up %s", src);
588 if (glob(src, 0, NULL, &g)) {
589 error("File \"%s\" not found.", src);
594 /* If multiple matches, dst may be directory or unspecified */
595 if (g.gl_matchc > 1 && tmp_dst && !remote_is_dir(conn, tmp_dst)) {
596 error("Multiple files match, but \"%s\" is not a directory",
602 for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
603 if (!is_reg(g.gl_pathv[i])) {
604 error("skipping non-regular file %s",
608 if (infer_path(g.gl_pathv[i], &tmp)) {
613 if (g.gl_matchc == 1 && tmp_dst) {
614 /* If directory specified, append filename */
615 if (remote_is_dir(conn, tmp_dst)) {
616 if (infer_path(g.gl_pathv[0], &tmp)) {
620 abs_dst = path_append(tmp_dst, tmp);
623 abs_dst = xstrdup(tmp_dst);
625 } else if (tmp_dst) {
626 abs_dst = path_append(tmp_dst, tmp);
629 abs_dst = make_absolute(tmp, pwd);
631 printf("Uploading %s to %s\n", g.gl_pathv[i], abs_dst);
632 if (do_upload(conn, g.gl_pathv[i], abs_dst, pflag) == -1)
646 sdirent_comp(const void *aa, const void *bb)
648 SFTP_DIRENT *a = *(SFTP_DIRENT **)aa;
649 SFTP_DIRENT *b = *(SFTP_DIRENT **)bb;
650 int rmul = sort_flag & LS_REVERSE_SORT ? -1 : 1;
652 #define NCMP(a,b) (a == b ? 0 : (a < b ? 1 : -1))
653 if (sort_flag & LS_NAME_SORT)
654 return (rmul * strcmp(a->filename, b->filename));
655 else if (sort_flag & LS_TIME_SORT)
656 return (rmul * NCMP(a->a.mtime, b->a.mtime));
657 else if (sort_flag & LS_SIZE_SORT)
658 return (rmul * NCMP(a->a.size, b->a.size));
660 fatal("Unknown ls sort type");
663 /* sftp ls.1 replacement for directories */
665 do_ls_dir(struct sftp_conn *conn, char *path, char *strip_path, int lflag)
668 u_int c = 1, colspace = 0, columns = 1;
671 if ((n = do_readdir(conn, path, &d)) != 0)
674 if (!(lflag & LS_SHORT_VIEW)) {
675 u_int m = 0, width = 80;
679 /* Count entries for sort and find longest filename */
680 for (n = 0; d[n] != NULL; n++) {
681 if (d[n]->filename[0] != '.' || (lflag & LS_SHOW_ALL))
682 m = MAX(m, strlen(d[n]->filename));
685 /* Add any subpath that also needs to be counted */
686 tmp = path_strip(path, strip_path);
690 if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1)
693 columns = width / (m + 2);
694 columns = MAX(columns, 1);
695 colspace = width / columns;
696 colspace = MIN(colspace, width);
699 if (lflag & SORT_FLAGS) {
700 for (n = 0; d[n] != NULL; n++)
701 ; /* count entries */
702 sort_flag = lflag & (SORT_FLAGS|LS_REVERSE_SORT);
703 qsort(d, n, sizeof(*d), sdirent_comp);
706 for (n = 0; d[n] != NULL && !interrupted; n++) {
709 if (d[n]->filename[0] == '.' && !(lflag & LS_SHOW_ALL))
712 tmp = path_append(path, d[n]->filename);
713 fname = path_strip(tmp, strip_path);
716 if (lflag & LS_LONG_VIEW) {
717 if (lflag & LS_NUMERIC_VIEW) {
721 memset(&sb, 0, sizeof(sb));
722 attrib_to_stat(&d[n]->a, &sb);
723 lname = ls_file(fname, &sb, 1);
724 printf("%s\n", lname);
727 printf("%s\n", d[n]->longname);
729 printf("%-*s", colspace, fname);
740 if (!(lflag & LS_LONG_VIEW) && (c != 1))
743 free_sftp_dirents(d);
747 /* sftp ls.1 replacement which handles path globs */
749 do_globbed_ls(struct sftp_conn *conn, char *path, char *strip_path,
753 u_int i, c = 1, colspace = 0, columns = 1;
756 memset(&g, 0, sizeof(g));
758 if (remote_glob(conn, path, GLOB_MARK|GLOB_NOCHECK|GLOB_BRACE,
759 NULL, &g) || (g.gl_pathc && !g.gl_matchc)) {
762 error("Can't ls: \"%s\" not found", path);
770 * If the glob returns a single match and it is a directory,
771 * then just list its contents.
773 if (g.gl_matchc == 1) {
774 if ((a = do_lstat(conn, g.gl_pathv[0], 1)) == NULL) {
778 if ((a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) &&
782 err = do_ls_dir(conn, g.gl_pathv[0], strip_path, lflag);
788 if (!(lflag & LS_SHORT_VIEW)) {
789 u_int m = 0, width = 80;
792 /* Count entries for sort and find longest filename */
793 for (i = 0; g.gl_pathv[i]; i++)
794 m = MAX(m, strlen(g.gl_pathv[i]));
796 if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1)
799 columns = width / (m + 2);
800 columns = MAX(columns, 1);
801 colspace = width / columns;
804 for (i = 0; g.gl_pathv[i] && !interrupted; i++, a = NULL) {
807 fname = path_strip(g.gl_pathv[i], strip_path);
809 if (lflag & LS_LONG_VIEW) {
814 * XXX: this is slow - 1 roundtrip per path
815 * A solution to this is to fork glob() and
816 * build a sftp specific version which keeps the
817 * attribs (which currently get thrown away)
818 * that the server returns as well as the filenames.
820 memset(&sb, 0, sizeof(sb));
822 a = do_lstat(conn, g.gl_pathv[i], 1);
824 attrib_to_stat(a, &sb);
825 lname = ls_file(fname, &sb, 1);
826 printf("%s\n", lname);
829 printf("%-*s", colspace, fname);
839 if (!(lflag & LS_LONG_VIEW) && (c != 1))
850 parse_args(const char **cpp, int *pflag, int *lflag, int *iflag,
851 unsigned long *n_arg, char **path1, char **path2)
853 const char *cmd, *cp = *cpp;
859 /* Skip leading whitespace */
860 cp = cp + strspn(cp, WHITESPACE);
862 /* Ignore blank lines and lines which begin with comment '#' char */
863 if (*cp == '\0' || *cp == '#')
866 /* Check for leading '-' (disable error processing) */
873 /* Figure out which command we have */
874 for (i = 0; cmds[i].c; i++) {
875 int cmdlen = strlen(cmds[i].c);
877 /* Check for command followed by whitespace */
878 if (!strncasecmp(cp, cmds[i].c, cmdlen) &&
879 strchr(WHITESPACE, cp[cmdlen])) {
881 cp = cp + strspn(cp, WHITESPACE);
892 } else if (cmdnum == -1) {
893 error("Invalid command.");
897 /* Get arguments and parse flags */
898 *lflag = *pflag = *n_arg = 0;
899 *path1 = *path2 = NULL;
903 if (parse_getput_flags(&cp, pflag))
905 /* Get first pathname (mandatory) */
906 if (get_pathname(&cp, path1))
908 if (*path1 == NULL) {
909 error("You must specify at least one path after a "
913 /* Try to get second pathname (optional) */
914 if (get_pathname(&cp, path2))
919 if (get_pathname(&cp, path1))
921 if (get_pathname(&cp, path2))
923 if (!*path1 || !*path2) {
924 error("You must specify two paths after a %s "
935 /* Get pathname (mandatory) */
936 if (get_pathname(&cp, path1))
938 if (*path1 == NULL) {
939 error("You must specify a path after a %s command.",
945 if (parse_ls_flags(&cp, lflag))
947 /* Path is optional */
948 if (get_pathname(&cp, path1))
953 /* Uses the rest of the line */
961 /* Get numeric arg (mandatory) */
962 l = strtol(cp, &cp2, base);
963 if (cp2 == cp || ((l == LONG_MIN || l == LONG_MAX) &&
964 errno == ERANGE) || l < 0) {
965 error("You must supply a numeric argument "
966 "to the %s command.", cmd);
971 if (cmdnum == I_LUMASK && strchr(WHITESPACE, *cp))
973 if (cmdnum == I_LUMASK || !strchr(WHITESPACE, *cp)) {
974 error("You must supply a numeric argument "
975 "to the %s command.", cmd);
978 cp += strspn(cp, WHITESPACE);
980 /* Get pathname (mandatory) */
981 if (get_pathname(&cp, path1))
983 if (*path1 == NULL) {
984 error("You must specify a path after a %s command.",
997 fatal("Command not implemented");
1005 parse_dispatch_command(struct sftp_conn *conn, const char *cmd, char **pwd,
1008 char *path1, *path2, *tmp;
1009 int pflag, lflag, iflag, cmdnum, i;
1010 unsigned long n_arg;
1012 char path_buf[MAXPATHLEN];
1016 path1 = path2 = NULL;
1017 cmdnum = parse_args(&cmd, &pflag, &lflag, &iflag, &n_arg,
1023 memset(&g, 0, sizeof(g));
1025 /* Perform command */
1031 /* Unrecognized command */
1035 err = process_get(conn, path1, path2, *pwd, pflag);
1038 err = process_put(conn, path1, path2, *pwd, pflag);
1041 path1 = make_absolute(path1, *pwd);
1042 path2 = make_absolute(path2, *pwd);
1043 err = do_rename(conn, path1, path2);
1046 path2 = make_absolute(path2, *pwd);
1047 err = do_symlink(conn, path1, path2);
1050 path1 = make_absolute(path1, *pwd);
1051 remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
1052 for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1053 printf("Removing %s\n", g.gl_pathv[i]);
1054 err = do_rm(conn, g.gl_pathv[i]);
1055 if (err != 0 && err_abort)
1060 path1 = make_absolute(path1, *pwd);
1062 a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
1064 err = do_mkdir(conn, path1, &a);
1067 path1 = make_absolute(path1, *pwd);
1068 err = do_rmdir(conn, path1);
1071 path1 = make_absolute(path1, *pwd);
1072 if ((tmp = do_realpath(conn, path1)) == NULL) {
1076 if ((aa = do_stat(conn, tmp, 0)) == NULL) {
1081 if (!(aa->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)) {
1082 error("Can't change directory: Can't check target");
1087 if (!S_ISDIR(aa->perm)) {
1088 error("Can't change directory: \"%s\" is not "
1089 "a directory", tmp);
1099 do_globbed_ls(conn, *pwd, *pwd, lflag);
1103 /* Strip pwd off beginning of non-absolute paths */
1108 path1 = make_absolute(path1, *pwd);
1109 err = do_globbed_ls(conn, path1, tmp, lflag);
1112 if (chdir(path1) == -1) {
1113 error("Couldn't change local directory to "
1114 "\"%s\": %s", path1, strerror(errno));
1119 if (mkdir(path1, 0777) == -1) {
1120 error("Couldn't create local directory "
1121 "\"%s\": %s", path1, strerror(errno));
1129 local_do_shell(cmd);
1133 printf("Local umask: %03lo\n", n_arg);
1136 path1 = make_absolute(path1, *pwd);
1138 a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
1140 remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
1141 for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1142 printf("Changing mode on %s\n", g.gl_pathv[i]);
1143 err = do_setstat(conn, g.gl_pathv[i], &a);
1144 if (err != 0 && err_abort)
1150 path1 = make_absolute(path1, *pwd);
1151 remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
1152 for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1153 if (!(aa = do_stat(conn, g.gl_pathv[i], 0))) {
1154 if (err != 0 && err_abort)
1159 if (!(aa->flags & SSH2_FILEXFER_ATTR_UIDGID)) {
1160 error("Can't get current ownership of "
1161 "remote file \"%s\"", g.gl_pathv[i]);
1162 if (err != 0 && err_abort)
1167 aa->flags &= SSH2_FILEXFER_ATTR_UIDGID;
1168 if (cmdnum == I_CHOWN) {
1169 printf("Changing owner on %s\n", g.gl_pathv[i]);
1172 printf("Changing group on %s\n", g.gl_pathv[i]);
1175 err = do_setstat(conn, g.gl_pathv[i], aa);
1176 if (err != 0 && err_abort)
1181 printf("Remote working directory: %s\n", *pwd);
1184 if (!getcwd(path_buf, sizeof(path_buf))) {
1185 error("Couldn't get local cwd: %s", strerror(errno));
1189 printf("Local working directory: %s\n", path_buf);
1192 /* Processed below */
1198 printf("SFTP protocol version %u\n", sftp_proto_version(conn));
1201 showprogress = !showprogress;
1203 printf("Progress meter enabled\n");
1205 printf("Progress meter disabled\n");
1208 fatal("%d is not implemented", cmdnum);
1218 /* If an unignored error occurs in batch mode we should abort. */
1219 if (err_abort && err != 0)
1221 else if (cmdnum == I_QUIT)
1229 prompt(EditLine *el)
1236 interactive_loop(int fd_in, int fd_out, char *file1, char *file2)
1241 struct sftp_conn *conn;
1242 int err, interactive;
1243 EditLine *el = NULL;
1247 extern char *__progname;
1249 if (!batchmode && isatty(STDIN_FILENO)) {
1250 if ((el = el_init(__progname, stdin, stdout, stderr)) == NULL)
1251 fatal("Couldn't initialise editline");
1252 if ((hl = history_init()) == NULL)
1253 fatal("Couldn't initialise editline history");
1254 history(hl, &hev, H_SETSIZE, 100);
1255 el_set(el, EL_HIST, history, hl);
1257 el_set(el, EL_PROMPT, prompt);
1258 el_set(el, EL_EDITOR, "emacs");
1259 el_set(el, EL_TERMINAL, NULL);
1260 el_set(el, EL_SIGNAL, 1);
1261 el_source(el, NULL);
1263 #endif /* USE_LIBEDIT */
1265 conn = do_init(fd_in, fd_out, copy_buffer_len, num_requests);
1267 fatal("Couldn't initialise connection to server");
1269 pwd = do_realpath(conn, ".");
1273 if (file1 != NULL) {
1274 dir = xstrdup(file1);
1275 dir = make_absolute(dir, pwd);
1277 if (remote_is_dir(conn, dir) && file2 == NULL) {
1278 printf("Changing to: %s\n", dir);
1279 snprintf(cmd, sizeof cmd, "cd \"%s\"", dir);
1280 if (parse_dispatch_command(conn, cmd, &pwd, 1) != 0) {
1287 snprintf(cmd, sizeof cmd, "get %s", dir);
1289 snprintf(cmd, sizeof cmd, "get %s %s", dir,
1292 err = parse_dispatch_command(conn, cmd, &pwd, 1);
1300 #if defined(HAVE_SETVBUF) && !defined(BROKEN_SETVBUF)
1301 setvbuf(stdout, NULL, _IOLBF, 0);
1302 setvbuf(infile, NULL, _IOLBF, 0);
1308 interactive = !batchmode && isatty(STDIN_FILENO);
1313 signal(SIGINT, SIG_IGN);
1318 if (fgets(cmd, sizeof(cmd), infile) == NULL) {
1323 if (!interactive) { /* Echo command */
1324 printf("sftp> %s", cmd);
1325 if (strlen(cmd) > 0 &&
1326 cmd[strlen(cmd) - 1] != '\n')
1334 if ((line = el_gets(el, &count)) == NULL || count <= 0) {
1338 history(hl, &hev, H_ENTER, line);
1339 if (strlcpy(cmd, line, sizeof(cmd)) >= sizeof(cmd)) {
1340 fprintf(stderr, "Error: input line too long\n");
1343 #endif /* USE_LIBEDIT */
1346 cp = strrchr(cmd, '\n');
1350 /* Handle user interrupts gracefully during commands */
1352 signal(SIGINT, cmd_interrupt);
1354 err = parse_dispatch_command(conn, cmd, &pwd, batchmode);
1363 #endif /* USE_LIBEDIT */
1365 /* err == 1 signifies normal "quit" exit */
1366 return (err >= 0 ? 0 : -1);
1370 connect_to_server(char *path, char **args, int *in, int *out)
1375 int pin[2], pout[2];
1377 if ((pipe(pin) == -1) || (pipe(pout) == -1))
1378 fatal("pipe: %s", strerror(errno));
1383 #else /* USE_PIPES */
1386 if (socketpair(AF_UNIX, SOCK_STREAM, 0, inout) == -1)
1387 fatal("socketpair: %s", strerror(errno));
1388 *in = *out = inout[0];
1389 c_in = c_out = inout[1];
1390 #endif /* USE_PIPES */
1392 if ((sshpid = fork()) == -1)
1393 fatal("fork: %s", strerror(errno));
1394 else if (sshpid == 0) {
1395 if ((dup2(c_in, STDIN_FILENO) == -1) ||
1396 (dup2(c_out, STDOUT_FILENO) == -1)) {
1397 fprintf(stderr, "dup2: %s\n", strerror(errno));
1406 * The underlying ssh is in the same process group, so we must
1407 * ignore SIGINT if we want to gracefully abort commands,
1408 * otherwise the signal will make it to the ssh process and
1411 signal(SIGINT, SIG_IGN);
1413 fprintf(stderr, "exec: %s: %s\n", path, strerror(errno));
1417 signal(SIGTERM, killchild);
1418 signal(SIGINT, killchild);
1419 signal(SIGHUP, killchild);
1427 extern char *__progname;
1430 "usage: %s [-1Cv] [-B buffer_size] [-b batchfile] [-F ssh_config]\n"
1431 " [-o ssh_option] [-P sftp_server_path] [-R num_requests]\n"
1432 " [-S program] [-s subsystem | sftp_server] host\n"
1433 " %s [[user@]host[:file [file]]]\n"
1434 " %s [[user@]host[:dir[/]]]\n"
1435 " %s -b batchfile [user@]host\n", __progname, __progname, __progname, __progname);
1440 main(int argc, char **argv)
1442 int in, out, ch, err;
1443 char *host, *userhost, *cp, *file2 = NULL;
1444 int debug_level = 0, sshver = 2;
1445 char *file1 = NULL, *sftp_server = NULL;
1446 char *ssh_program = _PATH_SSH_PROGRAM, *sftp_direct = NULL;
1447 LogLevel ll = SYSLOG_LEVEL_INFO;
1450 extern char *optarg;
1452 /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */
1455 __progname = ssh_get_progname(argv[0]);
1456 memset(&args, '\0', sizeof(args));
1458 addargs(&args, ssh_program);
1459 addargs(&args, "-oForwardX11 no");
1460 addargs(&args, "-oForwardAgent no");
1461 addargs(&args, "-oPermitLocalCommand no");
1462 addargs(&args, "-oClearAllForwardings yes");
1464 ll = SYSLOG_LEVEL_INFO;
1467 while ((ch = getopt(argc, argv, "1hvCo:s:S:b:B:F:P:R:z")) != -1) {
1470 addargs(&args, "-C");
1473 if (debug_level < 3) {
1474 addargs(&args, "-v");
1475 ll = SYSLOG_LEVEL_DEBUG1 + debug_level;
1481 addargs(&args, "-%c%s", ch, optarg);
1485 if (sftp_server == NULL)
1486 sftp_server = _PATH_SFTP_SERVER;
1489 sftp_server = optarg;
1492 ssh_program = optarg;
1493 replacearg(&args, 0, "%s", ssh_program);
1497 fatal("Batch file already specified.");
1499 /* Allow "-" as stdin */
1500 if (strcmp(optarg, "-") != 0 &&
1501 (infile = fopen(optarg, "r")) == NULL)
1502 fatal("%s (%s).", strerror(errno), optarg);
1505 addargs(&args, "-obatchmode yes");
1508 sftp_direct = optarg;
1511 copy_buffer_len = strtol(optarg, &cp, 10);
1512 if (copy_buffer_len == 0 || *cp != '\0')
1513 fatal("Invalid buffer size \"%s\"", optarg);
1516 num_requests = strtol(optarg, &cp, 10);
1517 if (num_requests == 0 || *cp != '\0')
1518 fatal("Invalid number of requests \"%s\"",
1523 addargs(&args, "-%c", ch);
1530 if (!isatty(STDERR_FILENO))
1533 log_init(argv[0], ll, SYSLOG_FACILITY_USER, 1);
1535 if (sftp_direct == NULL) {
1536 if (optind == argc || argc > (optind + 2))
1539 userhost = xstrdup(argv[optind]);
1540 file2 = argv[optind+1];
1542 if ((host = strrchr(userhost, '@')) == NULL)
1547 fprintf(stderr, "Missing username\n");
1550 addargs(&args, "-l%s",userhost);
1553 if ((cp = colon(host)) != NULL) {
1558 host = cleanhostname(host);
1560 fprintf(stderr, "Missing hostname\n");
1564 addargs(&args, "-oProtocol %d", sshver);
1566 /* no subsystem if the server-spec contains a '/' */
1567 if (sftp_server == NULL || strchr(sftp_server, '/') == NULL)
1568 addargs(&args, "-s");
1570 addargs(&args, "%s", host);
1571 addargs(&args, "%s", (sftp_server != NULL ?
1572 sftp_server : "sftp"));
1575 fprintf(stderr, "Connecting to %s...\n", host);
1576 connect_to_server(ssh_program, args.list, &in, &out);
1579 addargs(&args, "sftp-server");
1582 fprintf(stderr, "Attaching to %s...\n", sftp_direct);
1583 connect_to_server(sftp_direct, args.list, &in, &out);
1587 err = interactive_loop(in, out, file1, file2);
1589 #if !defined(USE_PIPES)
1590 shutdown(in, SHUT_RDWR);
1591 shutdown(out, SHUT_RDWR);
1599 while (waitpid(sshpid, NULL, 0) == -1)
1601 fatal("Couldn't wait for ssh process: %s",
1604 exit(err == 0 ? 0 : 1);