1 /* $OpenBSD: sftp.c,v 1.88 2006/07/26 02:35:17 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;
45 #include "pathnames.h"
49 #include "sftp-common.h"
50 #include "sftp-client.h"
52 /* File to read commands from */
55 /* Are we in batchfile mode? */
58 /* Size of buffer used when copying files */
59 size_t copy_buffer_len = 32768;
61 /* Number of concurrent outstanding requests */
62 size_t num_requests = 16;
64 /* PID of ssh transport process */
65 static pid_t sshpid = -1;
67 /* This is set to 0 if the progressmeter is not desired. */
70 /* SIGINT received during command processing */
71 volatile sig_atomic_t interrupted = 0;
73 /* I wish qsort() took a separate ctx for the comparison function...*/
76 int remote_glob(struct sftp_conn *, const char *, int,
77 int (*)(const char *, int), glob_t *); /* proto for sftp-glob.c */
79 extern char *__progname;
81 /* Separators for interactive commands */
82 #define WHITESPACE " \t\r\n"
85 #define LS_LONG_VIEW 0x01 /* Full view ala ls -l */
86 #define LS_SHORT_VIEW 0x02 /* Single row view ala ls -1 */
87 #define LS_NUMERIC_VIEW 0x04 /* Long view with numeric uid/gid */
88 #define LS_NAME_SORT 0x08 /* Sort by name (default) */
89 #define LS_TIME_SORT 0x10 /* Sort by mtime */
90 #define LS_SIZE_SORT 0x20 /* Sort by file size */
91 #define LS_REVERSE_SORT 0x40 /* Reverse sort order */
92 #define LS_SHOW_ALL 0x80 /* Don't skip filenames starting with '.' */
94 #define VIEW_FLAGS (LS_LONG_VIEW|LS_SHORT_VIEW|LS_NUMERIC_VIEW)
95 #define SORT_FLAGS (LS_NAME_SORT|LS_TIME_SORT|LS_SIZE_SORT)
97 /* Commands for interactive mode */
120 #define I_PROGRESS 23
127 static const struct CMD cmds[] = {
130 { "chdir", I_CHDIR },
131 { "chgrp", I_CHGRP },
132 { "chmod", I_CHMOD },
133 { "chown", I_CHOWN },
140 { "lchdir", I_LCHDIR },
142 { "lmkdir", I_LMKDIR },
146 { "lumask", I_LUMASK },
147 { "mkdir", I_MKDIR },
148 { "progress", I_PROGRESS },
153 { "rename", I_RENAME },
155 { "rmdir", I_RMDIR },
156 { "symlink", I_SYMLINK },
157 { "version", I_VERSION },
163 int interactive_loop(int fd_in, int fd_out, char *file1, char *file2);
169 kill(sshpid, SIGTERM);
170 waitpid(sshpid, NULL, 0);
177 cmd_interrupt(int signo)
179 const char msg[] = "\rInterrupt \n";
180 int olderrno = errno;
182 write(STDERR_FILENO, msg, sizeof(msg) - 1);
190 printf("Available commands:\n");
191 printf("cd path Change remote directory to 'path'\n");
192 printf("lcd path Change local directory to 'path'\n");
193 printf("chgrp grp path Change group of file 'path' to 'grp'\n");
194 printf("chmod mode path Change permissions of file 'path' to 'mode'\n");
195 printf("chown own path Change owner of file 'path' to 'own'\n");
196 printf("help Display this help text\n");
197 printf("get remote-path [local-path] Download file\n");
198 printf("lls [ls-options [path]] Display local directory listing\n");
199 printf("ln oldpath newpath Symlink remote file\n");
200 printf("lmkdir path Create local directory\n");
201 printf("lpwd Print local working directory\n");
202 printf("ls [path] Display remote directory listing\n");
203 printf("lumask umask Set local umask to 'umask'\n");
204 printf("mkdir path Create remote directory\n");
205 printf("progress Toggle display of progress meter\n");
206 printf("put local-path [remote-path] Upload file\n");
207 printf("pwd Display remote working directory\n");
208 printf("exit Quit sftp\n");
209 printf("quit Quit sftp\n");
210 printf("rename oldpath newpath Rename remote file\n");
211 printf("rmdir path Remove remote directory\n");
212 printf("rm path Delete remote file\n");
213 printf("symlink oldpath newpath Symlink remote file\n");
214 printf("version Show SFTP version\n");
215 printf("!command Execute 'command' in local shell\n");
216 printf("! Escape to local shell\n");
217 printf("? Synonym for help\n");
221 local_do_shell(const char *args)
230 if ((shell = getenv("SHELL")) == NULL)
231 shell = _PATH_BSHELL;
233 if ((pid = fork()) == -1)
234 fatal("Couldn't fork: %s", strerror(errno));
237 /* XXX: child has pipe fds to ssh subproc open - issue? */
239 debug3("Executing %s -c \"%s\"", shell, args);
240 execl(shell, shell, "-c", args, (char *)NULL);
242 debug3("Executing %s", shell);
243 execl(shell, shell, (char *)NULL);
245 fprintf(stderr, "Couldn't execute \"%s\": %s\n", shell,
249 while (waitpid(pid, &status, 0) == -1)
251 fatal("Couldn't wait for child: %s", strerror(errno));
252 if (!WIFEXITED(status))
253 error("Shell exited abnormally");
254 else if (WEXITSTATUS(status))
255 error("Shell exited with status %d", WEXITSTATUS(status));
259 local_do_ls(const char *args)
262 local_do_shell(_PATH_LS);
264 int len = strlen(_PATH_LS " ") + strlen(args) + 1;
265 char *buf = xmalloc(len);
267 /* XXX: quoting - rip quoting code from ftp? */
268 snprintf(buf, len, _PATH_LS " %s", args);
274 /* Strip one path (usually the pwd) from the start of another */
276 path_strip(char *path, char *strip)
281 return (xstrdup(path));
284 if (strncmp(path, strip, len) == 0) {
285 if (strip[len - 1] != '/' && path[len] == '/')
287 return (xstrdup(path + len));
290 return (xstrdup(path));
294 path_append(char *p1, char *p2)
297 int len = strlen(p1) + strlen(p2) + 2;
300 strlcpy(ret, p1, len);
301 if (p1[strlen(p1) - 1] != '/')
302 strlcat(ret, "/", len);
303 strlcat(ret, p2, len);
309 make_absolute(char *p, char *pwd)
314 if (p && p[0] != '/') {
315 abs_str = path_append(pwd, p);
323 infer_path(const char *p, char **ifp)
327 cp = strrchr(p, '/');
334 error("Invalid path");
338 *ifp = xstrdup(cp + 1);
343 parse_getput_flags(const char **cpp, int *pflag)
345 const char *cp = *cpp;
347 /* Check for flags */
348 if (cp[0] == '-' && cp[1] && strchr(WHITESPACE, cp[2])) {
355 error("Invalid flag -%c", cp[1]);
359 *cpp = cp + strspn(cp, WHITESPACE);
366 parse_ls_flags(const char **cpp, int *lflag)
368 const char *cp = *cpp;
371 *lflag = LS_NAME_SORT;
373 /* Check for flags */
374 if (cp++[0] == '-') {
375 for (; strchr(WHITESPACE, *cp) == NULL; cp++) {
378 *lflag &= ~VIEW_FLAGS;
379 *lflag |= LS_LONG_VIEW;
382 *lflag &= ~VIEW_FLAGS;
383 *lflag |= LS_SHORT_VIEW;
386 *lflag &= ~VIEW_FLAGS;
387 *lflag |= LS_NUMERIC_VIEW|LS_LONG_VIEW;
390 *lflag &= ~SORT_FLAGS;
391 *lflag |= LS_SIZE_SORT;
394 *lflag &= ~SORT_FLAGS;
395 *lflag |= LS_TIME_SORT;
398 *lflag |= LS_REVERSE_SORT;
401 *lflag &= ~SORT_FLAGS;
404 *lflag |= LS_SHOW_ALL;
407 error("Invalid flag -%c", *cp);
411 *cpp = cp + strspn(cp, WHITESPACE);
418 get_pathname(const char **cpp, char **path)
420 const char *cp = *cpp, *end;
424 cp += strspn(cp, WHITESPACE);
431 *path = xmalloc(strlen(cp) + 1);
433 /* Check for quoted filenames */
434 if (*cp == '\"' || *cp == '\'') {
437 /* Search for terminating quote, unescape some chars */
438 for (i = j = 0; i <= strlen(cp); i++) {
439 if (cp[i] == quot) { /* Found quote */
444 if (cp[i] == '\0') { /* End of string */
445 error("Unterminated quote");
448 if (cp[i] == '\\') { /* Escaped characters */
450 if (cp[i] != '\'' && cp[i] != '\"' &&
452 error("Bad escaped character '\\%c'",
457 (*path)[j++] = cp[i];
461 error("Empty quotes");
464 *cpp = cp + i + strspn(cp + i, WHITESPACE);
466 /* Read to end of filename */
467 end = strpbrk(cp, WHITESPACE);
469 end = strchr(cp, '\0');
470 *cpp = end + strspn(end, WHITESPACE);
472 memcpy(*path, cp, end - cp);
473 (*path)[end - cp] = '\0';
488 /* XXX: report errors? */
489 if (stat(path, &sb) == -1)
492 return(sb.st_mode & S_IFDIR);
500 if (stat(path, &sb) == -1)
501 fatal("stat %s: %s", path, strerror(errno));
503 return(S_ISREG(sb.st_mode));
507 remote_is_dir(struct sftp_conn *conn, char *path)
511 /* XXX: report errors? */
512 if ((a = do_stat(conn, path, 1)) == NULL)
514 if (!(a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS))
516 return(a->perm & S_IFDIR);
520 process_get(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag)
522 char *abs_src = NULL;
523 char *abs_dst = NULL;
529 abs_src = xstrdup(src);
530 abs_src = make_absolute(abs_src, pwd);
532 memset(&g, 0, sizeof(g));
533 debug3("Looking up %s", abs_src);
534 if (remote_glob(conn, abs_src, 0, NULL, &g)) {
535 error("File \"%s\" not found.", abs_src);
540 /* If multiple matches, dst must be a directory or unspecified */
541 if (g.gl_matchc > 1 && dst && !is_dir(dst)) {
542 error("Multiple files match, but \"%s\" is not a directory",
548 for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
549 if (infer_path(g.gl_pathv[i], &tmp)) {
554 if (g.gl_matchc == 1 && dst) {
555 /* If directory specified, append filename */
558 if (infer_path(g.gl_pathv[0], &tmp)) {
562 abs_dst = path_append(dst, tmp);
565 abs_dst = xstrdup(dst);
567 abs_dst = path_append(dst, tmp);
572 printf("Fetching %s to %s\n", g.gl_pathv[i], abs_dst);
573 if (do_download(conn, g.gl_pathv[i], abs_dst, pflag) == -1)
586 process_put(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag)
588 char *tmp_dst = NULL;
589 char *abs_dst = NULL;
596 tmp_dst = xstrdup(dst);
597 tmp_dst = make_absolute(tmp_dst, pwd);
600 memset(&g, 0, sizeof(g));
601 debug3("Looking up %s", src);
602 if (glob(src, 0, NULL, &g)) {
603 error("File \"%s\" not found.", src);
608 /* If multiple matches, dst may be directory or unspecified */
609 if (g.gl_matchc > 1 && tmp_dst && !remote_is_dir(conn, tmp_dst)) {
610 error("Multiple files match, but \"%s\" is not a directory",
616 for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
617 if (!is_reg(g.gl_pathv[i])) {
618 error("skipping non-regular file %s",
622 if (infer_path(g.gl_pathv[i], &tmp)) {
627 if (g.gl_matchc == 1 && tmp_dst) {
628 /* If directory specified, append filename */
629 if (remote_is_dir(conn, tmp_dst)) {
630 if (infer_path(g.gl_pathv[0], &tmp)) {
634 abs_dst = path_append(tmp_dst, tmp);
637 abs_dst = xstrdup(tmp_dst);
639 } else if (tmp_dst) {
640 abs_dst = path_append(tmp_dst, tmp);
643 abs_dst = make_absolute(tmp, pwd);
645 printf("Uploading %s to %s\n", g.gl_pathv[i], abs_dst);
646 if (do_upload(conn, g.gl_pathv[i], abs_dst, pflag) == -1)
660 sdirent_comp(const void *aa, const void *bb)
662 SFTP_DIRENT *a = *(SFTP_DIRENT **)aa;
663 SFTP_DIRENT *b = *(SFTP_DIRENT **)bb;
664 int rmul = sort_flag & LS_REVERSE_SORT ? -1 : 1;
666 #define NCMP(a,b) (a == b ? 0 : (a < b ? 1 : -1))
667 if (sort_flag & LS_NAME_SORT)
668 return (rmul * strcmp(a->filename, b->filename));
669 else if (sort_flag & LS_TIME_SORT)
670 return (rmul * NCMP(a->a.mtime, b->a.mtime));
671 else if (sort_flag & LS_SIZE_SORT)
672 return (rmul * NCMP(a->a.size, b->a.size));
674 fatal("Unknown ls sort type");
677 /* sftp ls.1 replacement for directories */
679 do_ls_dir(struct sftp_conn *conn, char *path, char *strip_path, int lflag)
682 u_int c = 1, colspace = 0, columns = 1;
685 if ((n = do_readdir(conn, path, &d)) != 0)
688 if (!(lflag & LS_SHORT_VIEW)) {
689 u_int m = 0, width = 80;
693 /* Count entries for sort and find longest filename */
694 for (n = 0; d[n] != NULL; n++) {
695 if (d[n]->filename[0] != '.' || (lflag & LS_SHOW_ALL))
696 m = MAX(m, strlen(d[n]->filename));
699 /* Add any subpath that also needs to be counted */
700 tmp = path_strip(path, strip_path);
704 if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1)
707 columns = width / (m + 2);
708 columns = MAX(columns, 1);
709 colspace = width / columns;
710 colspace = MIN(colspace, width);
713 if (lflag & SORT_FLAGS) {
714 for (n = 0; d[n] != NULL; n++)
715 ; /* count entries */
716 sort_flag = lflag & (SORT_FLAGS|LS_REVERSE_SORT);
717 qsort(d, n, sizeof(*d), sdirent_comp);
720 for (n = 0; d[n] != NULL && !interrupted; n++) {
723 if (d[n]->filename[0] == '.' && !(lflag & LS_SHOW_ALL))
726 tmp = path_append(path, d[n]->filename);
727 fname = path_strip(tmp, strip_path);
730 if (lflag & LS_LONG_VIEW) {
731 if (lflag & LS_NUMERIC_VIEW) {
735 memset(&sb, 0, sizeof(sb));
736 attrib_to_stat(&d[n]->a, &sb);
737 lname = ls_file(fname, &sb, 1);
738 printf("%s\n", lname);
741 printf("%s\n", d[n]->longname);
743 printf("%-*s", colspace, fname);
754 if (!(lflag & LS_LONG_VIEW) && (c != 1))
757 free_sftp_dirents(d);
761 /* sftp ls.1 replacement which handles path globs */
763 do_globbed_ls(struct sftp_conn *conn, char *path, char *strip_path,
767 u_int i, c = 1, colspace = 0, columns = 1;
770 memset(&g, 0, sizeof(g));
772 if (remote_glob(conn, path, GLOB_MARK|GLOB_NOCHECK|GLOB_BRACE,
773 NULL, &g) || (g.gl_pathc && !g.gl_matchc)) {
776 error("Can't ls: \"%s\" not found", path);
784 * If the glob returns a single match and it is a directory,
785 * then just list its contents.
787 if (g.gl_matchc == 1) {
788 if ((a = do_lstat(conn, g.gl_pathv[0], 1)) == NULL) {
792 if ((a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) &&
796 err = do_ls_dir(conn, g.gl_pathv[0], strip_path, lflag);
802 if (!(lflag & LS_SHORT_VIEW)) {
803 u_int m = 0, width = 80;
806 /* Count entries for sort and find longest filename */
807 for (i = 0; g.gl_pathv[i]; i++)
808 m = MAX(m, strlen(g.gl_pathv[i]));
810 if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1)
813 columns = width / (m + 2);
814 columns = MAX(columns, 1);
815 colspace = width / columns;
818 for (i = 0; g.gl_pathv[i] && !interrupted; i++, a = NULL) {
821 fname = path_strip(g.gl_pathv[i], strip_path);
823 if (lflag & LS_LONG_VIEW) {
828 * XXX: this is slow - 1 roundtrip per path
829 * A solution to this is to fork glob() and
830 * build a sftp specific version which keeps the
831 * attribs (which currently get thrown away)
832 * that the server returns as well as the filenames.
834 memset(&sb, 0, sizeof(sb));
836 a = do_lstat(conn, g.gl_pathv[i], 1);
838 attrib_to_stat(a, &sb);
839 lname = ls_file(fname, &sb, 1);
840 printf("%s\n", lname);
843 printf("%-*s", colspace, fname);
853 if (!(lflag & LS_LONG_VIEW) && (c != 1))
864 parse_args(const char **cpp, int *pflag, int *lflag, int *iflag,
865 unsigned long *n_arg, char **path1, char **path2)
867 const char *cmd, *cp = *cpp;
873 /* Skip leading whitespace */
874 cp = cp + strspn(cp, WHITESPACE);
876 /* Ignore blank lines and lines which begin with comment '#' char */
877 if (*cp == '\0' || *cp == '#')
880 /* Check for leading '-' (disable error processing) */
887 /* Figure out which command we have */
888 for (i = 0; cmds[i].c; i++) {
889 int cmdlen = strlen(cmds[i].c);
891 /* Check for command followed by whitespace */
892 if (!strncasecmp(cp, cmds[i].c, cmdlen) &&
893 strchr(WHITESPACE, cp[cmdlen])) {
895 cp = cp + strspn(cp, WHITESPACE);
906 } else if (cmdnum == -1) {
907 error("Invalid command.");
911 /* Get arguments and parse flags */
912 *lflag = *pflag = *n_arg = 0;
913 *path1 = *path2 = NULL;
917 if (parse_getput_flags(&cp, pflag))
919 /* Get first pathname (mandatory) */
920 if (get_pathname(&cp, path1))
922 if (*path1 == NULL) {
923 error("You must specify at least one path after a "
927 /* Try to get second pathname (optional) */
928 if (get_pathname(&cp, path2))
933 if (get_pathname(&cp, path1))
935 if (get_pathname(&cp, path2))
937 if (!*path1 || !*path2) {
938 error("You must specify two paths after a %s "
949 /* Get pathname (mandatory) */
950 if (get_pathname(&cp, path1))
952 if (*path1 == NULL) {
953 error("You must specify a path after a %s command.",
959 if (parse_ls_flags(&cp, lflag))
961 /* Path is optional */
962 if (get_pathname(&cp, path1))
967 /* Uses the rest of the line */
975 /* Get numeric arg (mandatory) */
976 l = strtol(cp, &cp2, base);
977 if (cp2 == cp || ((l == LONG_MIN || l == LONG_MAX) &&
978 errno == ERANGE) || l < 0) {
979 error("You must supply a numeric argument "
980 "to the %s command.", cmd);
985 if (cmdnum == I_LUMASK && strchr(WHITESPACE, *cp))
987 if (cmdnum == I_LUMASK || !strchr(WHITESPACE, *cp)) {
988 error("You must supply a numeric argument "
989 "to the %s command.", cmd);
992 cp += strspn(cp, WHITESPACE);
994 /* Get pathname (mandatory) */
995 if (get_pathname(&cp, path1))
997 if (*path1 == NULL) {
998 error("You must specify a path after a %s command.",
1011 fatal("Command not implemented");
1019 parse_dispatch_command(struct sftp_conn *conn, const char *cmd, char **pwd,
1022 char *path1, *path2, *tmp;
1023 int pflag, lflag, iflag, cmdnum, i;
1024 unsigned long n_arg;
1026 char path_buf[MAXPATHLEN];
1030 path1 = path2 = NULL;
1031 cmdnum = parse_args(&cmd, &pflag, &lflag, &iflag, &n_arg,
1037 memset(&g, 0, sizeof(g));
1039 /* Perform command */
1045 /* Unrecognized command */
1049 err = process_get(conn, path1, path2, *pwd, pflag);
1052 err = process_put(conn, path1, path2, *pwd, pflag);
1055 path1 = make_absolute(path1, *pwd);
1056 path2 = make_absolute(path2, *pwd);
1057 err = do_rename(conn, path1, path2);
1060 path2 = make_absolute(path2, *pwd);
1061 err = do_symlink(conn, path1, path2);
1064 path1 = make_absolute(path1, *pwd);
1065 remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
1066 for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1067 printf("Removing %s\n", g.gl_pathv[i]);
1068 err = do_rm(conn, g.gl_pathv[i]);
1069 if (err != 0 && err_abort)
1074 path1 = make_absolute(path1, *pwd);
1076 a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
1078 err = do_mkdir(conn, path1, &a);
1081 path1 = make_absolute(path1, *pwd);
1082 err = do_rmdir(conn, path1);
1085 path1 = make_absolute(path1, *pwd);
1086 if ((tmp = do_realpath(conn, path1)) == NULL) {
1090 if ((aa = do_stat(conn, tmp, 0)) == NULL) {
1095 if (!(aa->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)) {
1096 error("Can't change directory: Can't check target");
1101 if (!S_ISDIR(aa->perm)) {
1102 error("Can't change directory: \"%s\" is not "
1103 "a directory", tmp);
1113 do_globbed_ls(conn, *pwd, *pwd, lflag);
1117 /* Strip pwd off beginning of non-absolute paths */
1122 path1 = make_absolute(path1, *pwd);
1123 err = do_globbed_ls(conn, path1, tmp, lflag);
1126 if (chdir(path1) == -1) {
1127 error("Couldn't change local directory to "
1128 "\"%s\": %s", path1, strerror(errno));
1133 if (mkdir(path1, 0777) == -1) {
1134 error("Couldn't create local directory "
1135 "\"%s\": %s", path1, strerror(errno));
1143 local_do_shell(cmd);
1147 printf("Local umask: %03lo\n", n_arg);
1150 path1 = make_absolute(path1, *pwd);
1152 a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
1154 remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
1155 for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1156 printf("Changing mode on %s\n", g.gl_pathv[i]);
1157 err = do_setstat(conn, g.gl_pathv[i], &a);
1158 if (err != 0 && err_abort)
1164 path1 = make_absolute(path1, *pwd);
1165 remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
1166 for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
1167 if (!(aa = do_stat(conn, g.gl_pathv[i], 0))) {
1168 if (err != 0 && err_abort)
1173 if (!(aa->flags & SSH2_FILEXFER_ATTR_UIDGID)) {
1174 error("Can't get current ownership of "
1175 "remote file \"%s\"", g.gl_pathv[i]);
1176 if (err != 0 && err_abort)
1181 aa->flags &= SSH2_FILEXFER_ATTR_UIDGID;
1182 if (cmdnum == I_CHOWN) {
1183 printf("Changing owner on %s\n", g.gl_pathv[i]);
1186 printf("Changing group on %s\n", g.gl_pathv[i]);
1189 err = do_setstat(conn, g.gl_pathv[i], aa);
1190 if (err != 0 && err_abort)
1195 printf("Remote working directory: %s\n", *pwd);
1198 if (!getcwd(path_buf, sizeof(path_buf))) {
1199 error("Couldn't get local cwd: %s", strerror(errno));
1203 printf("Local working directory: %s\n", path_buf);
1206 /* Processed below */
1212 printf("SFTP protocol version %u\n", sftp_proto_version(conn));
1215 showprogress = !showprogress;
1217 printf("Progress meter enabled\n");
1219 printf("Progress meter disabled\n");
1222 fatal("%d is not implemented", cmdnum);
1232 /* If an unignored error occurs in batch mode we should abort. */
1233 if (err_abort && err != 0)
1235 else if (cmdnum == I_QUIT)
1243 prompt(EditLine *el)
1250 interactive_loop(int fd_in, int fd_out, char *file1, char *file2)
1255 struct sftp_conn *conn;
1256 int err, interactive;
1257 EditLine *el = NULL;
1261 extern char *__progname;
1263 if (!batchmode && isatty(STDIN_FILENO)) {
1264 if ((el = el_init(__progname, stdin, stdout, stderr)) == NULL)
1265 fatal("Couldn't initialise editline");
1266 if ((hl = history_init()) == NULL)
1267 fatal("Couldn't initialise editline history");
1268 history(hl, &hev, H_SETSIZE, 100);
1269 el_set(el, EL_HIST, history, hl);
1271 el_set(el, EL_PROMPT, prompt);
1272 el_set(el, EL_EDITOR, "emacs");
1273 el_set(el, EL_TERMINAL, NULL);
1274 el_set(el, EL_SIGNAL, 1);
1275 el_source(el, NULL);
1277 #endif /* USE_LIBEDIT */
1279 conn = do_init(fd_in, fd_out, copy_buffer_len, num_requests);
1281 fatal("Couldn't initialise connection to server");
1283 pwd = do_realpath(conn, ".");
1287 if (file1 != NULL) {
1288 dir = xstrdup(file1);
1289 dir = make_absolute(dir, pwd);
1291 if (remote_is_dir(conn, dir) && file2 == NULL) {
1292 printf("Changing to: %s\n", dir);
1293 snprintf(cmd, sizeof cmd, "cd \"%s\"", dir);
1294 if (parse_dispatch_command(conn, cmd, &pwd, 1) != 0) {
1302 snprintf(cmd, sizeof cmd, "get %s", dir);
1304 snprintf(cmd, sizeof cmd, "get %s %s", dir,
1307 err = parse_dispatch_command(conn, cmd, &pwd, 1);
1316 #if defined(HAVE_SETVBUF) && !defined(BROKEN_SETVBUF)
1317 setvbuf(stdout, NULL, _IOLBF, 0);
1318 setvbuf(infile, NULL, _IOLBF, 0);
1324 interactive = !batchmode && isatty(STDIN_FILENO);
1329 signal(SIGINT, SIG_IGN);
1334 if (fgets(cmd, sizeof(cmd), infile) == NULL) {
1339 if (!interactive) { /* Echo command */
1340 printf("sftp> %s", cmd);
1341 if (strlen(cmd) > 0 &&
1342 cmd[strlen(cmd) - 1] != '\n')
1350 if ((line = el_gets(el, &count)) == NULL || count <= 0) {
1354 history(hl, &hev, H_ENTER, line);
1355 if (strlcpy(cmd, line, sizeof(cmd)) >= sizeof(cmd)) {
1356 fprintf(stderr, "Error: input line too long\n");
1359 #endif /* USE_LIBEDIT */
1362 cp = strrchr(cmd, '\n');
1366 /* Handle user interrupts gracefully during commands */
1368 signal(SIGINT, cmd_interrupt);
1370 err = parse_dispatch_command(conn, cmd, &pwd, batchmode);
1380 #endif /* USE_LIBEDIT */
1382 /* err == 1 signifies normal "quit" exit */
1383 return (err >= 0 ? 0 : -1);
1387 connect_to_server(char *path, char **args, int *in, int *out)
1392 int pin[2], pout[2];
1394 if ((pipe(pin) == -1) || (pipe(pout) == -1))
1395 fatal("pipe: %s", strerror(errno));
1400 #else /* USE_PIPES */
1403 if (socketpair(AF_UNIX, SOCK_STREAM, 0, inout) == -1)
1404 fatal("socketpair: %s", strerror(errno));
1405 *in = *out = inout[0];
1406 c_in = c_out = inout[1];
1407 #endif /* USE_PIPES */
1409 if ((sshpid = fork()) == -1)
1410 fatal("fork: %s", strerror(errno));
1411 else if (sshpid == 0) {
1412 if ((dup2(c_in, STDIN_FILENO) == -1) ||
1413 (dup2(c_out, STDOUT_FILENO) == -1)) {
1414 fprintf(stderr, "dup2: %s\n", strerror(errno));
1423 * The underlying ssh is in the same process group, so we must
1424 * ignore SIGINT if we want to gracefully abort commands,
1425 * otherwise the signal will make it to the ssh process and
1428 signal(SIGINT, SIG_IGN);
1430 fprintf(stderr, "exec: %s: %s\n", path, strerror(errno));
1434 signal(SIGTERM, killchild);
1435 signal(SIGINT, killchild);
1436 signal(SIGHUP, killchild);
1444 extern char *__progname;
1447 "usage: %s [-1Cv] [-B buffer_size] [-b batchfile] [-F ssh_config]\n"
1448 " [-o ssh_option] [-P sftp_server_path] [-R num_requests]\n"
1449 " [-S program] [-s subsystem | sftp_server] host\n"
1450 " %s [[user@]host[:file [file]]]\n"
1451 " %s [[user@]host[:dir[/]]]\n"
1452 " %s -b batchfile [user@]host\n", __progname, __progname, __progname, __progname);
1457 main(int argc, char **argv)
1459 int in, out, ch, err;
1460 char *host, *userhost, *cp, *file2 = NULL;
1461 int debug_level = 0, sshver = 2;
1462 char *file1 = NULL, *sftp_server = NULL;
1463 char *ssh_program = _PATH_SSH_PROGRAM, *sftp_direct = NULL;
1464 LogLevel ll = SYSLOG_LEVEL_INFO;
1467 extern char *optarg;
1469 /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */
1472 __progname = ssh_get_progname(argv[0]);
1473 memset(&args, '\0', sizeof(args));
1475 addargs(&args, "%s", ssh_program);
1476 addargs(&args, "-oForwardX11 no");
1477 addargs(&args, "-oForwardAgent no");
1478 addargs(&args, "-oPermitLocalCommand no");
1479 addargs(&args, "-oClearAllForwardings yes");
1481 ll = SYSLOG_LEVEL_INFO;
1484 while ((ch = getopt(argc, argv, "1hvCo:s:S:b:B:F:P:R:")) != -1) {
1487 addargs(&args, "-C");
1490 if (debug_level < 3) {
1491 addargs(&args, "-v");
1492 ll = SYSLOG_LEVEL_DEBUG1 + debug_level;
1498 addargs(&args, "-%c%s", ch, optarg);
1502 if (sftp_server == NULL)
1503 sftp_server = _PATH_SFTP_SERVER;
1506 sftp_server = optarg;
1509 ssh_program = optarg;
1510 replacearg(&args, 0, "%s", ssh_program);
1514 fatal("Batch file already specified.");
1516 /* Allow "-" as stdin */
1517 if (strcmp(optarg, "-") != 0 &&
1518 (infile = fopen(optarg, "r")) == NULL)
1519 fatal("%s (%s).", strerror(errno), optarg);
1522 addargs(&args, "-obatchmode yes");
1525 sftp_direct = optarg;
1528 copy_buffer_len = strtol(optarg, &cp, 10);
1529 if (copy_buffer_len == 0 || *cp != '\0')
1530 fatal("Invalid buffer size \"%s\"", optarg);
1533 num_requests = strtol(optarg, &cp, 10);
1534 if (num_requests == 0 || *cp != '\0')
1535 fatal("Invalid number of requests \"%s\"",
1544 if (!isatty(STDERR_FILENO))
1547 log_init(argv[0], ll, SYSLOG_FACILITY_USER, 1);
1549 if (sftp_direct == NULL) {
1550 if (optind == argc || argc > (optind + 2))
1553 userhost = xstrdup(argv[optind]);
1554 file2 = argv[optind+1];
1556 if ((host = strrchr(userhost, '@')) == NULL)
1561 fprintf(stderr, "Missing username\n");
1564 addargs(&args, "-l%s",userhost);
1567 if ((cp = colon(host)) != NULL) {
1572 host = cleanhostname(host);
1574 fprintf(stderr, "Missing hostname\n");
1578 addargs(&args, "-oProtocol %d", sshver);
1580 /* no subsystem if the server-spec contains a '/' */
1581 if (sftp_server == NULL || strchr(sftp_server, '/') == NULL)
1582 addargs(&args, "-s");
1584 addargs(&args, "%s", host);
1585 addargs(&args, "%s", (sftp_server != NULL ?
1586 sftp_server : "sftp"));
1589 fprintf(stderr, "Connecting to %s...\n", host);
1590 connect_to_server(ssh_program, args.list, &in, &out);
1593 addargs(&args, "sftp-server");
1596 fprintf(stderr, "Attaching to %s...\n", sftp_direct);
1597 connect_to_server(sftp_direct, args.list, &in, &out);
1601 err = interactive_loop(in, out, file1, file2);
1603 #if !defined(USE_PIPES)
1604 shutdown(in, SHUT_RDWR);
1605 shutdown(out, SHUT_RDWR);
1613 while (waitpid(sshpid, NULL, 0) == -1)
1615 fatal("Couldn't wait for ssh process: %s",
1618 exit(err == 0 ? 0 : 1);