1 /* $OpenBSD: sftp.c,v 1.90 2006/08/01 23:22:47 stevesk 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 #ifdef HAVE_SYS_STAT_H
22 # include <sys/stat.h>
24 #include <sys/ioctl.h>
25 #include <sys/param.h>
26 #include <sys/socket.h>
37 typedef void EditLine;
47 #include "pathnames.h"
51 #include "sftp-common.h"
52 #include "sftp-client.h"
54 /* File to read commands from */
57 /* Are we in batchfile mode? */
60 /* Size of buffer used when copying files */
61 size_t copy_buffer_len = 32768;
63 /* Number of concurrent outstanding requests */
64 size_t num_requests = 16;
66 /* PID of ssh transport process */
67 static pid_t sshpid = -1;
69 /* This is set to 0 if the progressmeter is not desired. */
72 /* SIGINT received during command processing */
73 volatile sig_atomic_t interrupted = 0;
75 /* I wish qsort() took a separate ctx for the comparison function...*/
78 int remote_glob(struct sftp_conn *, const char *, int,
79 int (*)(const char *, int), glob_t *); /* proto for sftp-glob.c */
81 extern char *__progname;
83 /* Separators for interactive commands */
84 #define WHITESPACE " \t\r\n"
87 #define LS_LONG_VIEW 0x01 /* Full view ala ls -l */
88 #define LS_SHORT_VIEW 0x02 /* Single row view ala ls -1 */
89 #define LS_NUMERIC_VIEW 0x04 /* Long view with numeric uid/gid */
90 #define LS_NAME_SORT 0x08 /* Sort by name (default) */
91 #define LS_TIME_SORT 0x10 /* Sort by mtime */
92 #define LS_SIZE_SORT 0x20 /* Sort by file size */
93 #define LS_REVERSE_SORT 0x40 /* Reverse sort order */
94 #define LS_SHOW_ALL 0x80 /* Don't skip filenames starting with '.' */
96 #define VIEW_FLAGS (LS_LONG_VIEW|LS_SHORT_VIEW|LS_NUMERIC_VIEW)
97 #define SORT_FLAGS (LS_NAME_SORT|LS_TIME_SORT|LS_SIZE_SORT)
99 /* Commands for interactive mode */
122 #define I_PROGRESS 23
129 static const struct CMD cmds[] = {
132 { "chdir", I_CHDIR },
133 { "chgrp", I_CHGRP },
134 { "chmod", I_CHMOD },
135 { "chown", I_CHOWN },
142 { "lchdir", I_LCHDIR },
144 { "lmkdir", I_LMKDIR },
148 { "lumask", I_LUMASK },
149 { "mkdir", I_MKDIR },
150 { "progress", I_PROGRESS },
155 { "rename", I_RENAME },
157 { "rmdir", I_RMDIR },
158 { "symlink", I_SYMLINK },
159 { "version", I_VERSION },
165 int interactive_loop(int fd_in, int fd_out, char *file1, char *file2);
171 kill(sshpid, SIGTERM);
172 waitpid(sshpid, NULL, 0);
179 cmd_interrupt(int signo)
181 const char msg[] = "\rInterrupt \n";
182 int olderrno = errno;
184 write(STDERR_FILENO, msg, sizeof(msg) - 1);
192 printf("Available commands:\n");
193 printf("cd path Change remote directory to 'path'\n");
194 printf("lcd path Change local directory to 'path'\n");
195 printf("chgrp grp path Change group of file 'path' to 'grp'\n");
196 printf("chmod mode path Change permissions of file 'path' to 'mode'\n");
197 printf("chown own path Change owner of file 'path' to 'own'\n");
198 printf("help Display this help text\n");
199 printf("get remote-path [local-path] Download file\n");
200 printf("lls [ls-options [path]] Display local directory listing\n");
201 printf("ln oldpath newpath Symlink remote file\n");
202 printf("lmkdir path Create local directory\n");
203 printf("lpwd Print local working directory\n");
204 printf("ls [path] Display remote directory listing\n");
205 printf("lumask umask Set local umask to 'umask'\n");
206 printf("mkdir path Create remote directory\n");
207 printf("progress Toggle display of progress meter\n");
208 printf("put local-path [remote-path] Upload file\n");
209 printf("pwd Display remote working directory\n");
210 printf("exit Quit sftp\n");
211 printf("quit Quit sftp\n");
212 printf("rename oldpath newpath Rename remote file\n");
213 printf("rmdir path Remove remote directory\n");
214 printf("rm path Delete remote file\n");
215 printf("symlink oldpath newpath Symlink remote file\n");
216 printf("version Show SFTP version\n");
217 printf("!command Execute 'command' in local shell\n");
218 printf("! Escape to local shell\n");
219 printf("? Synonym for help\n");
223 local_do_shell(const char *args)
232 if ((shell = getenv("SHELL")) == NULL)
233 shell = _PATH_BSHELL;
235 if ((pid = fork()) == -1)
236 fatal("Couldn't fork: %s", strerror(errno));
239 /* XXX: child has pipe fds to ssh subproc open - issue? */
241 debug3("Executing %s -c \"%s\"", shell, args);
242 execl(shell, shell, "-c", args, (char *)NULL);
244 debug3("Executing %s", shell);
245 execl(shell, shell, (char *)NULL);
247 fprintf(stderr, "Couldn't execute \"%s\": %s\n", shell,
251 while (waitpid(pid, &status, 0) == -1)
253 fatal("Couldn't wait for child: %s", strerror(errno));
254 if (!WIFEXITED(status))
255 error("Shell exited abnormally");
256 else if (WEXITSTATUS(status))
257 error("Shell exited with status %d", WEXITSTATUS(status));
261 local_do_ls(const char *args)
264 local_do_shell(_PATH_LS);
266 int len = strlen(_PATH_LS " ") + strlen(args) + 1;
267 char *buf = xmalloc(len);
269 /* XXX: quoting - rip quoting code from ftp? */
270 snprintf(buf, len, _PATH_LS " %s", args);
276 /* Strip one path (usually the pwd) from the start of another */
278 path_strip(char *path, char *strip)
283 return (xstrdup(path));
286 if (strncmp(path, strip, len) == 0) {
287 if (strip[len - 1] != '/' && path[len] == '/')
289 return (xstrdup(path + len));
292 return (xstrdup(path));
296 path_append(char *p1, char *p2)
299 int len = strlen(p1) + strlen(p2) + 2;
302 strlcpy(ret, p1, len);
303 if (p1[strlen(p1) - 1] != '/')
304 strlcat(ret, "/", len);
305 strlcat(ret, p2, len);
311 make_absolute(char *p, char *pwd)
316 if (p && p[0] != '/') {
317 abs_str = path_append(pwd, p);
325 infer_path(const char *p, char **ifp)
329 cp = strrchr(p, '/');
336 error("Invalid path");
340 *ifp = xstrdup(cp + 1);
345 parse_getput_flags(const char **cpp, int *pflag)
347 const char *cp = *cpp;
349 /* Check for flags */
350 if (cp[0] == '-' && cp[1] && strchr(WHITESPACE, cp[2])) {
357 error("Invalid flag -%c", cp[1]);
361 *cpp = cp + strspn(cp, WHITESPACE);
368 parse_ls_flags(const char **cpp, int *lflag)
370 const char *cp = *cpp;
373 *lflag = LS_NAME_SORT;
375 /* Check for flags */
376 if (cp++[0] == '-') {
377 for (; strchr(WHITESPACE, *cp) == NULL; cp++) {
380 *lflag &= ~VIEW_FLAGS;
381 *lflag |= LS_LONG_VIEW;
384 *lflag &= ~VIEW_FLAGS;
385 *lflag |= LS_SHORT_VIEW;
388 *lflag &= ~VIEW_FLAGS;
389 *lflag |= LS_NUMERIC_VIEW|LS_LONG_VIEW;
392 *lflag &= ~SORT_FLAGS;
393 *lflag |= LS_SIZE_SORT;
396 *lflag &= ~SORT_FLAGS;
397 *lflag |= LS_TIME_SORT;
400 *lflag |= LS_REVERSE_SORT;
403 *lflag &= ~SORT_FLAGS;
406 *lflag |= LS_SHOW_ALL;
409 error("Invalid flag -%c", *cp);
413 *cpp = cp + strspn(cp, WHITESPACE);
420 get_pathname(const char **cpp, char **path)
422 const char *cp = *cpp, *end;
426 cp += strspn(cp, WHITESPACE);
433 *path = xmalloc(strlen(cp) + 1);
435 /* Check for quoted filenames */
436 if (*cp == '\"' || *cp == '\'') {
439 /* Search for terminating quote, unescape some chars */
440 for (i = j = 0; i <= strlen(cp); i++) {
441 if (cp[i] == quot) { /* Found quote */
446 if (cp[i] == '\0') { /* End of string */
447 error("Unterminated quote");
450 if (cp[i] == '\\') { /* Escaped characters */
452 if (cp[i] != '\'' && cp[i] != '\"' &&
454 error("Bad escaped character '\\%c'",
459 (*path)[j++] = cp[i];
463 error("Empty quotes");
466 *cpp = cp + i + strspn(cp + i, WHITESPACE);
468 /* Read to end of filename */
469 end = strpbrk(cp, WHITESPACE);
471 end = strchr(cp, '\0');
472 *cpp = end + strspn(end, WHITESPACE);
474 memcpy(*path, cp, end - cp);
475 (*path)[end - cp] = '\0';
490 /* XXX: report errors? */
491 if (stat(path, &sb) == -1)
494 return(sb.st_mode & S_IFDIR);
502 if (stat(path, &sb) == -1)
503 fatal("stat %s: %s", path, strerror(errno));
505 return(S_ISREG(sb.st_mode));
509 remote_is_dir(struct sftp_conn *conn, char *path)
513 /* XXX: report errors? */
514 if ((a = do_stat(conn, path, 1)) == NULL)
516 if (!(a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS))
518 return(a->perm & S_IFDIR);
522 process_get(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag)
524 char *abs_src = NULL;
525 char *abs_dst = NULL;
531 abs_src = xstrdup(src);
532 abs_src = make_absolute(abs_src, pwd);
534 memset(&g, 0, sizeof(g));
535 debug3("Looking up %s", abs_src);
536 if (remote_glob(conn, abs_src, 0, NULL, &g)) {
537 error("File \"%s\" not found.", abs_src);
542 /* If multiple matches, dst must be a directory or unspecified */
543 if (g.gl_matchc > 1 && dst && !is_dir(dst)) {
544 error("Multiple files match, but \"%s\" is not a directory",
550 for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
551 if (infer_path(g.gl_pathv[i], &tmp)) {
556 if (g.gl_matchc == 1 && dst) {
557 /* If directory specified, append filename */
560 if (infer_path(g.gl_pathv[0], &tmp)) {
564 abs_dst = path_append(dst, tmp);
567 abs_dst = xstrdup(dst);
569 abs_dst = path_append(dst, tmp);
574 printf("Fetching %s to %s\n", g.gl_pathv[i], abs_dst);
575 if (do_download(conn, g.gl_pathv[i], abs_dst, pflag) == -1)
588 process_put(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag)
590 char *tmp_dst = NULL;
591 char *abs_dst = NULL;
598 tmp_dst = xstrdup(dst);
599 tmp_dst = make_absolute(tmp_dst, pwd);
602 memset(&g, 0, sizeof(g));
603 debug3("Looking up %s", src);
604 if (glob(src, 0, NULL, &g)) {
605 error("File \"%s\" not found.", src);
610 /* If multiple matches, dst may be directory or unspecified */
611 if (g.gl_matchc > 1 && tmp_dst && !remote_is_dir(conn, tmp_dst)) {
612 error("Multiple files match, but \"%s\" is not a directory",
618 for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
619 if (!is_reg(g.gl_pathv[i])) {
620 error("skipping non-regular file %s",
624 if (infer_path(g.gl_pathv[i], &tmp)) {
629 if (g.gl_matchc == 1 && tmp_dst) {
630 /* If directory specified, append filename */
631 if (remote_is_dir(conn, tmp_dst)) {
632 if (infer_path(g.gl_pathv[0], &tmp)) {
636 abs_dst = path_append(tmp_dst, tmp);
639 abs_dst = xstrdup(tmp_dst);
641 } else if (tmp_dst) {
642 abs_dst = path_append(tmp_dst, tmp);
645 abs_dst = make_absolute(tmp, pwd);
647 printf("Uploading %s to %s\n", g.gl_pathv[i], abs_dst);
648 if (do_upload(conn, g.gl_pathv[i], abs_dst, pflag) == -1)
662 sdirent_comp(const void *aa, const void *bb)
664 SFTP_DIRENT *a = *(SFTP_DIRENT **)aa;
665 SFTP_DIRENT *b = *(SFTP_DIRENT **)bb;
666 int rmul = sort_flag & LS_REVERSE_SORT ? -1 : 1;
668 #define NCMP(a,b) (a == b ? 0 : (a < b ? 1 : -1))
669 if (sort_flag & LS_NAME_SORT)
670 return (rmul * strcmp(a->filename, b->filename));
671 else if (sort_flag & LS_TIME_SORT)
672 return (rmul * NCMP(a->a.mtime, b->a.mtime));
673 else if (sort_flag & LS_SIZE_SORT)
674 return (rmul * NCMP(a->a.size, b->a.size));
676 fatal("Unknown ls sort type");
679 /* sftp ls.1 replacement for directories */
681 do_ls_dir(struct sftp_conn *conn, char *path, char *strip_path, int lflag)
684 u_int c = 1, colspace = 0, columns = 1;
687 if ((n = do_readdir(conn, path, &d)) != 0)
690 if (!(lflag & LS_SHORT_VIEW)) {
691 u_int m = 0, width = 80;
695 /* Count entries for sort and find longest filename */
696 for (n = 0; d[n] != NULL; n++) {
697 if (d[n]->filename[0] != '.' || (lflag & LS_SHOW_ALL))
698 m = MAX(m, strlen(d[n]->filename));
701 /* Add any subpath that also needs to be counted */
702 tmp = path_strip(path, strip_path);
706 if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1)
709 columns = width / (m + 2);
710 columns = MAX(columns, 1);
711 colspace = width / columns;
712 colspace = MIN(colspace, width);
715 if (lflag & SORT_FLAGS) {
716 for (n = 0; d[n] != NULL; n++)
717 ; /* count entries */
718 sort_flag = lflag & (SORT_FLAGS|LS_REVERSE_SORT);
719 qsort(d, n, sizeof(*d), sdirent_comp);
722 for (n = 0; d[n] != NULL && !interrupted; n++) {
725 if (d[n]->filename[0] == '.' && !(lflag & LS_SHOW_ALL))
728 tmp = path_append(path, d[n]->filename);
729 fname = path_strip(tmp, strip_path);
732 if (lflag & LS_LONG_VIEW) {
733 if (lflag & LS_NUMERIC_VIEW) {
737 memset(&sb, 0, sizeof(sb));
738 attrib_to_stat(&d[n]->a, &sb);
739 lname = ls_file(fname, &sb, 1);
740 printf("%s\n", lname);
743 printf("%s\n", d[n]->longname);
745 printf("%-*s", colspace, fname);
756 if (!(lflag & LS_LONG_VIEW) && (c != 1))
759 free_sftp_dirents(d);
763 /* sftp ls.1 replacement which handles path globs */
765 do_globbed_ls(struct sftp_conn *conn, char *path, char *strip_path,
769 u_int i, c = 1, colspace = 0, columns = 1;
772 memset(&g, 0, sizeof(g));
774 if (remote_glob(conn, path, GLOB_MARK|GLOB_NOCHECK|GLOB_BRACE,
775 NULL, &g) || (g.gl_pathc && !g.gl_matchc)) {
778 error("Can't ls: \"%s\" not found", path);
786 * If the glob returns a single match and it is a directory,
787 * then just list its contents.
789 if (g.gl_matchc == 1) {
790 if ((a = do_lstat(conn, g.gl_pathv[0], 1)) == NULL) {
794 if ((a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) &&
798 err = do_ls_dir(conn, g.gl_pathv[0], strip_path, lflag);
804 if (!(lflag & LS_SHORT_VIEW)) {
805 u_int m = 0, width = 80;
808 /* Count entries for sort and find longest filename */
809 for (i = 0; g.gl_pathv[i]; i++)
810 m = MAX(m, strlen(g.gl_pathv[i]));
812 if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1)
815 columns = width / (m + 2);
816 columns = MAX(columns, 1);
817 colspace = width / columns;
820 for (i = 0; g.gl_pathv[i] && !interrupted; i++, a = NULL) {
823 fname = path_strip(g.gl_pathv[i], strip_path);
825 if (lflag & LS_LONG_VIEW) {
830 * XXX: this is slow - 1 roundtrip per path
831 * A solution to this is to fork glob() and
832 * build a sftp specific version which keeps the
833 * attribs (which currently get thrown away)
834 * that the server returns as well as the filenames.
836 memset(&sb, 0, sizeof(sb));
838 a = do_lstat(conn, g.gl_pathv[i], 1);
840 attrib_to_stat(a, &sb);
841 lname = ls_file(fname, &sb, 1);
842 printf("%s\n", lname);
845 printf("%-*s", colspace, fname);
855 if (!(lflag & LS_LONG_VIEW) && (c != 1))
866 parse_args(const char **cpp, int *pflag, int *lflag, int *iflag,
867 unsigned long *n_arg, char **path1, char **path2)
869 const char *cmd, *cp = *cpp;
875 /* Skip leading whitespace */
876 cp = cp + strspn(cp, WHITESPACE);
878 /* Ignore blank lines and lines which begin with comment '#' char */
879 if (*cp == '\0' || *cp == '#')
882 /* Check for leading '-' (disable error processing) */
889 /* Figure out which command we have */
890 for (i = 0; cmds[i].c; i++) {
891 int cmdlen = strlen(cmds[i].c);
893 /* Check for command followed by whitespace */
894 if (!strncasecmp(cp, cmds[i].c, cmdlen) &&
895 strchr(WHITESPACE, cp[cmdlen])) {
897 cp = cp + strspn(cp, WHITESPACE);
908 } else if (cmdnum == -1) {
909 error("Invalid command.");
913 /* Get arguments and parse flags */
914 *lflag = *pflag = *n_arg = 0;
915 *path1 = *path2 = NULL;
919 if (parse_getput_flags(&cp, pflag))
921 /* Get first pathname (mandatory) */
922 if (get_pathname(&cp, path1))
924 if (*path1 == NULL) {
925 error("You must specify at least one path after a "
929 /* Try to get second pathname (optional) */
930 if (get_pathname(&cp, path2))
935 if (get_pathname(&cp, path1))
937 if (get_pathname(&cp, path2))
939 if (!*path1 || !*path2) {
940 error("You must specify two paths after a %s "
951 /* Get pathname (mandatory) */
952 if (get_pathname(&cp, path1))
954 if (*path1 == NULL) {
955 error("You must specify a path after a %s command.",
961 if (parse_ls_flags(&cp, lflag))
963 /* Path is optional */
964 if (get_pathname(&cp, path1))
969 /* Uses the rest of the line */
977 /* Get numeric arg (mandatory) */
978 l = strtol(cp, &cp2, base);
979 if (cp2 == cp || ((l == LONG_MIN || l == LONG_MAX) &&
980 errno == ERANGE) || l < 0) {
981 error("You must supply a numeric argument "
982 "to the %s command.", cmd);
987 if (cmdnum == I_LUMASK && strchr(WHITESPACE, *cp))
989 if (cmdnum == I_LUMASK || !strchr(WHITESPACE, *cp)) {
990 error("You must supply a numeric argument "
991 "to the %s command.", cmd);
994 cp += strspn(cp, WHITESPACE);
996 /* Get pathname (mandatory) */
997 if (get_pathname(&cp, path1))
999 if (*path1 == NULL) {
1000 error("You must specify a path after a %s command.",
1013 fatal("Command not implemented");
1021 parse_dispatch_command(struct sftp_conn *conn, const char *cmd, char **pwd,
1024 char *path1, *path2, *tmp;
1025 int pflag, lflag, iflag, cmdnum, i;
1026 unsigned long n_arg;
1028 char path_buf[MAXPATHLEN];
1032 path1 = path2 = NULL;
1033 cmdnum = parse_args(&cmd, &pflag, &lflag, &iflag, &n_arg,
1039 memset(&g, 0, sizeof(g));
1041 /* Perform command */
1047 /* Unrecognized command */
1051 err = process_get(conn, path1, path2, *pwd, pflag);
1054 err = process_put(conn, path1, path2, *pwd, pflag);
1057 path1 = make_absolute(path1, *pwd);
1058 path2 = make_absolute(path2, *pwd);
1059 err = do_rename(conn, path1, path2);
1062 path2 = make_absolute(path2, *pwd);
1063 err = do_symlink(conn, path1, path2);
1066 path1 = make_absolute(path1, *pwd);
1067 remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
1068 for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1069 printf("Removing %s\n", g.gl_pathv[i]);
1070 err = do_rm(conn, g.gl_pathv[i]);
1071 if (err != 0 && err_abort)
1076 path1 = make_absolute(path1, *pwd);
1078 a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
1080 err = do_mkdir(conn, path1, &a);
1083 path1 = make_absolute(path1, *pwd);
1084 err = do_rmdir(conn, path1);
1087 path1 = make_absolute(path1, *pwd);
1088 if ((tmp = do_realpath(conn, path1)) == NULL) {
1092 if ((aa = do_stat(conn, tmp, 0)) == NULL) {
1097 if (!(aa->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)) {
1098 error("Can't change directory: Can't check target");
1103 if (!S_ISDIR(aa->perm)) {
1104 error("Can't change directory: \"%s\" is not "
1105 "a directory", tmp);
1115 do_globbed_ls(conn, *pwd, *pwd, lflag);
1119 /* Strip pwd off beginning of non-absolute paths */
1124 path1 = make_absolute(path1, *pwd);
1125 err = do_globbed_ls(conn, path1, tmp, lflag);
1128 if (chdir(path1) == -1) {
1129 error("Couldn't change local directory to "
1130 "\"%s\": %s", path1, strerror(errno));
1135 if (mkdir(path1, 0777) == -1) {
1136 error("Couldn't create local directory "
1137 "\"%s\": %s", path1, strerror(errno));
1145 local_do_shell(cmd);
1149 printf("Local umask: %03lo\n", n_arg);
1152 path1 = make_absolute(path1, *pwd);
1154 a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
1156 remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
1157 for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1158 printf("Changing mode on %s\n", g.gl_pathv[i]);
1159 err = do_setstat(conn, g.gl_pathv[i], &a);
1160 if (err != 0 && err_abort)
1166 path1 = make_absolute(path1, *pwd);
1167 remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
1168 for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1169 if (!(aa = do_stat(conn, g.gl_pathv[i], 0))) {
1170 if (err != 0 && err_abort)
1175 if (!(aa->flags & SSH2_FILEXFER_ATTR_UIDGID)) {
1176 error("Can't get current ownership of "
1177 "remote file \"%s\"", g.gl_pathv[i]);
1178 if (err != 0 && err_abort)
1183 aa->flags &= SSH2_FILEXFER_ATTR_UIDGID;
1184 if (cmdnum == I_CHOWN) {
1185 printf("Changing owner on %s\n", g.gl_pathv[i]);
1188 printf("Changing group on %s\n", g.gl_pathv[i]);
1191 err = do_setstat(conn, g.gl_pathv[i], aa);
1192 if (err != 0 && err_abort)
1197 printf("Remote working directory: %s\n", *pwd);
1200 if (!getcwd(path_buf, sizeof(path_buf))) {
1201 error("Couldn't get local cwd: %s", strerror(errno));
1205 printf("Local working directory: %s\n", path_buf);
1208 /* Processed below */
1214 printf("SFTP protocol version %u\n", sftp_proto_version(conn));
1217 showprogress = !showprogress;
1219 printf("Progress meter enabled\n");
1221 printf("Progress meter disabled\n");
1224 fatal("%d is not implemented", cmdnum);
1234 /* If an unignored error occurs in batch mode we should abort. */
1235 if (err_abort && err != 0)
1237 else if (cmdnum == I_QUIT)
1245 prompt(EditLine *el)
1252 interactive_loop(int fd_in, int fd_out, char *file1, char *file2)
1257 struct sftp_conn *conn;
1258 int err, interactive;
1259 EditLine *el = NULL;
1263 extern char *__progname;
1265 if (!batchmode && isatty(STDIN_FILENO)) {
1266 if ((el = el_init(__progname, stdin, stdout, stderr)) == NULL)
1267 fatal("Couldn't initialise editline");
1268 if ((hl = history_init()) == NULL)
1269 fatal("Couldn't initialise editline history");
1270 history(hl, &hev, H_SETSIZE, 100);
1271 el_set(el, EL_HIST, history, hl);
1273 el_set(el, EL_PROMPT, prompt);
1274 el_set(el, EL_EDITOR, "emacs");
1275 el_set(el, EL_TERMINAL, NULL);
1276 el_set(el, EL_SIGNAL, 1);
1277 el_source(el, NULL);
1279 #endif /* USE_LIBEDIT */
1281 conn = do_init(fd_in, fd_out, copy_buffer_len, num_requests);
1283 fatal("Couldn't initialise connection to server");
1285 pwd = do_realpath(conn, ".");
1289 if (file1 != NULL) {
1290 dir = xstrdup(file1);
1291 dir = make_absolute(dir, pwd);
1293 if (remote_is_dir(conn, dir) && file2 == NULL) {
1294 printf("Changing to: %s\n", dir);
1295 snprintf(cmd, sizeof cmd, "cd \"%s\"", dir);
1296 if (parse_dispatch_command(conn, cmd, &pwd, 1) != 0) {
1304 snprintf(cmd, sizeof cmd, "get %s", dir);
1306 snprintf(cmd, sizeof cmd, "get %s %s", dir,
1309 err = parse_dispatch_command(conn, cmd, &pwd, 1);
1318 #if defined(HAVE_SETVBUF) && !defined(BROKEN_SETVBUF)
1319 setvbuf(stdout, NULL, _IOLBF, 0);
1320 setvbuf(infile, NULL, _IOLBF, 0);
1326 interactive = !batchmode && isatty(STDIN_FILENO);
1331 signal(SIGINT, SIG_IGN);
1336 if (fgets(cmd, sizeof(cmd), infile) == NULL) {
1341 if (!interactive) { /* Echo command */
1342 printf("sftp> %s", cmd);
1343 if (strlen(cmd) > 0 &&
1344 cmd[strlen(cmd) - 1] != '\n')
1352 if ((line = el_gets(el, &count)) == NULL || count <= 0) {
1356 history(hl, &hev, H_ENTER, line);
1357 if (strlcpy(cmd, line, sizeof(cmd)) >= sizeof(cmd)) {
1358 fprintf(stderr, "Error: input line too long\n");
1361 #endif /* USE_LIBEDIT */
1364 cp = strrchr(cmd, '\n');
1368 /* Handle user interrupts gracefully during commands */
1370 signal(SIGINT, cmd_interrupt);
1372 err = parse_dispatch_command(conn, cmd, &pwd, batchmode);
1382 #endif /* USE_LIBEDIT */
1384 /* err == 1 signifies normal "quit" exit */
1385 return (err >= 0 ? 0 : -1);
1389 connect_to_server(char *path, char **args, int *in, int *out)
1394 int pin[2], pout[2];
1396 if ((pipe(pin) == -1) || (pipe(pout) == -1))
1397 fatal("pipe: %s", strerror(errno));
1402 #else /* USE_PIPES */
1405 if (socketpair(AF_UNIX, SOCK_STREAM, 0, inout) == -1)
1406 fatal("socketpair: %s", strerror(errno));
1407 *in = *out = inout[0];
1408 c_in = c_out = inout[1];
1409 #endif /* USE_PIPES */
1411 if ((sshpid = fork()) == -1)
1412 fatal("fork: %s", strerror(errno));
1413 else if (sshpid == 0) {
1414 if ((dup2(c_in, STDIN_FILENO) == -1) ||
1415 (dup2(c_out, STDOUT_FILENO) == -1)) {
1416 fprintf(stderr, "dup2: %s\n", strerror(errno));
1425 * The underlying ssh is in the same process group, so we must
1426 * ignore SIGINT if we want to gracefully abort commands,
1427 * otherwise the signal will make it to the ssh process and
1430 signal(SIGINT, SIG_IGN);
1432 fprintf(stderr, "exec: %s: %s\n", path, strerror(errno));
1436 signal(SIGTERM, killchild);
1437 signal(SIGINT, killchild);
1438 signal(SIGHUP, killchild);
1446 extern char *__progname;
1449 "usage: %s [-1Cv] [-B buffer_size] [-b batchfile] [-F ssh_config]\n"
1450 " [-o ssh_option] [-P sftp_server_path] [-R num_requests]\n"
1451 " [-S program] [-s subsystem | sftp_server] host\n"
1452 " %s [[user@]host[:file [file]]]\n"
1453 " %s [[user@]host[:dir[/]]]\n"
1454 " %s -b batchfile [user@]host\n", __progname, __progname, __progname, __progname);
1459 main(int argc, char **argv)
1461 int in, out, ch, err;
1462 char *host, *userhost, *cp, *file2 = NULL;
1463 int debug_level = 0, sshver = 2;
1464 char *file1 = NULL, *sftp_server = NULL;
1465 char *ssh_program = _PATH_SSH_PROGRAM, *sftp_direct = NULL;
1466 LogLevel ll = SYSLOG_LEVEL_INFO;
1469 extern char *optarg;
1471 /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */
1474 __progname = ssh_get_progname(argv[0]);
1475 memset(&args, '\0', sizeof(args));
1477 addargs(&args, "%s", ssh_program);
1478 addargs(&args, "-oForwardX11 no");
1479 addargs(&args, "-oForwardAgent no");
1480 addargs(&args, "-oPermitLocalCommand no");
1481 addargs(&args, "-oClearAllForwardings yes");
1483 ll = SYSLOG_LEVEL_INFO;
1486 while ((ch = getopt(argc, argv, "1hvCo:s:S:b:B:F:P:R:")) != -1) {
1489 addargs(&args, "-C");
1492 if (debug_level < 3) {
1493 addargs(&args, "-v");
1494 ll = SYSLOG_LEVEL_DEBUG1 + debug_level;
1500 addargs(&args, "-%c%s", ch, optarg);
1504 if (sftp_server == NULL)
1505 sftp_server = _PATH_SFTP_SERVER;
1508 sftp_server = optarg;
1511 ssh_program = optarg;
1512 replacearg(&args, 0, "%s", ssh_program);
1516 fatal("Batch file already specified.");
1518 /* Allow "-" as stdin */
1519 if (strcmp(optarg, "-") != 0 &&
1520 (infile = fopen(optarg, "r")) == NULL)
1521 fatal("%s (%s).", strerror(errno), optarg);
1524 addargs(&args, "-obatchmode yes");
1527 sftp_direct = optarg;
1530 copy_buffer_len = strtol(optarg, &cp, 10);
1531 if (copy_buffer_len == 0 || *cp != '\0')
1532 fatal("Invalid buffer size \"%s\"", optarg);
1535 num_requests = strtol(optarg, &cp, 10);
1536 if (num_requests == 0 || *cp != '\0')
1537 fatal("Invalid number of requests \"%s\"",
1546 if (!isatty(STDERR_FILENO))
1549 log_init(argv[0], ll, SYSLOG_FACILITY_USER, 1);
1551 if (sftp_direct == NULL) {
1552 if (optind == argc || argc > (optind + 2))
1555 userhost = xstrdup(argv[optind]);
1556 file2 = argv[optind+1];
1558 if ((host = strrchr(userhost, '@')) == NULL)
1563 fprintf(stderr, "Missing username\n");
1566 addargs(&args, "-l%s",userhost);
1569 if ((cp = colon(host)) != NULL) {
1574 host = cleanhostname(host);
1576 fprintf(stderr, "Missing hostname\n");
1580 addargs(&args, "-oProtocol %d", sshver);
1582 /* no subsystem if the server-spec contains a '/' */
1583 if (sftp_server == NULL || strchr(sftp_server, '/') == NULL)
1584 addargs(&args, "-s");
1586 addargs(&args, "%s", host);
1587 addargs(&args, "%s", (sftp_server != NULL ?
1588 sftp_server : "sftp"));
1591 fprintf(stderr, "Connecting to %s...\n", host);
1592 connect_to_server(ssh_program, args.list, &in, &out);
1595 addargs(&args, "sftp-server");
1598 fprintf(stderr, "Attaching to %s...\n", sftp_direct);
1599 connect_to_server(sftp_direct, args.list, &in, &out);
1603 err = interactive_loop(in, out, file1, file2);
1605 #if !defined(USE_PIPES)
1606 shutdown(in, SHUT_RDWR);
1607 shutdown(out, SHUT_RDWR);
1615 while (waitpid(sshpid, NULL, 0) == -1)
1617 fatal("Couldn't wait for ssh process: %s",
1620 exit(err == 0 ? 0 : 1);