2 * Copyright (c) 2001,2002 Damien Miller. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 RCSID("$OpenBSD: sftp.c,v 1.24 2002/02/05 00:00:46 djm Exp $");
29 /* XXX: short-form remote directory listings (like 'ls -C') */
34 #include "pathnames.h"
38 #include "sftp-common.h"
39 #include "sftp-client.h"
42 #ifdef HAVE___PROGNAME
43 extern char *__progname;
49 size_t copy_buffer_len = 32768;
52 connect_to_server(char *path, char **args, int *in, int *out, pid_t *sshpid)
57 if ((pipe(pin) == -1) || (pipe(pout) == -1))
58 fatal("pipe: %s", strerror(errno));
65 if (socketpair(AF_UNIX, SOCK_STREAM, 0, inout) == -1)
66 fatal("socketpair: %s", strerror(errno));
67 *in = *out = inout[0];
68 c_in = c_out = inout[1];
69 #endif /* USE_PIPES */
71 if ((*sshpid = fork()) == -1)
72 fatal("fork: %s", strerror(errno));
73 else if (*sshpid == 0) {
74 if ((dup2(c_in, STDIN_FILENO) == -1) ||
75 (dup2(c_out, STDOUT_FILENO) == -1)) {
76 fprintf(stderr, "dup2: %s\n", strerror(errno));
84 fprintf(stderr, "exec: %s: %s\n", path, strerror(errno));
96 "usage: sftp [-1Cv] [-b batchfile] [-F config] [-o option] [-s subsystem|path]\n"
97 " [-P direct server path] [-S program] \n"
98 " [-B buffer_size] [user@]host[:file [file]]\n");
103 main(int argc, char **argv)
107 char *host, *userhost, *cp, *file2;
108 int debug_level = 0, sshver = 2;
109 char *file1 = NULL, *sftp_server = NULL;
110 char *ssh_program = _PATH_SSH_PROGRAM, *sftp_direct = NULL;
111 LogLevel ll = SYSLOG_LEVEL_INFO;
116 __progname = get_progname(argv[0]);
118 addargs(&args, "ssh"); /* overwritten with ssh_program */
119 addargs(&args, "-oFallBackToRsh no");
120 addargs(&args, "-oForwardX11 no");
121 addargs(&args, "-oForwardAgent no");
122 addargs(&args, "-oClearAllForwardings yes");
123 ll = SYSLOG_LEVEL_INFO;
124 infile = stdin; /* Read from STDIN unless changed by -b */
126 while ((ch = getopt(argc, argv, "1hvCo:s:S:b:B:F:P:")) != -1) {
129 addargs(&args, "-C");
132 if (debug_level < 3) {
133 addargs(&args, "-v");
134 ll = SYSLOG_LEVEL_DEBUG1 + debug_level;
140 addargs(&args, "-%c%s", ch, optarg);
144 if (sftp_server == NULL)
145 sftp_server = _PATH_SFTP_SERVER;
148 sftp_server = optarg;
151 ssh_program = optarg;
154 if (infile == stdin) {
155 infile = fopen(optarg, "r");
157 fatal("%s (%s).", strerror(errno), optarg);
159 fatal("Filename already specified.");
162 sftp_direct = optarg;
165 copy_buffer_len = strtol(optarg, &cp, 10);
166 if (copy_buffer_len == 0 || *cp != '\0')
167 fatal("Invalid buffer size \"%s\"", optarg);
175 if (sftp_direct == NULL) {
176 if (optind == argc || argc > (optind + 2))
179 userhost = xstrdup(argv[optind]);
180 file2 = argv[optind+1];
182 if ((cp = colon(userhost)) != NULL) {
187 if ((host = strchr(userhost, '@')) == NULL)
192 fprintf(stderr, "Missing username\n");
195 addargs(&args, "-l%s",userhost);
198 host = cleanhostname(host);
200 fprintf(stderr, "Missing hostname\n");
204 log_init(argv[0], ll, SYSLOG_FACILITY_USER, 1);
205 addargs(&args, "-oProtocol %d", sshver);
207 /* no subsystem if the server-spec contains a '/' */
208 if (sftp_server == NULL || strchr(sftp_server, '/') == NULL)
209 addargs(&args, "-s");
211 addargs(&args, "%s", host);
212 addargs(&args, "%s", (sftp_server != NULL ?
213 sftp_server : "sftp"));
214 args.list[0] = ssh_program;
216 fprintf(stderr, "Connecting to %s...\n", host);
217 connect_to_server(ssh_program, args.list, &in, &out,
221 addargs(&args, "sftp-server");
223 fprintf(stderr, "Attaching to %s...\n", sftp_direct);
224 connect_to_server(sftp_direct, args.list, &in, &out,
228 interactive_loop(in, out, file1, file2);
230 #if !defined(USE_PIPES)
231 shutdown(in, SHUT_RDWR);
232 shutdown(out, SHUT_RDWR);
240 if (waitpid(sshpid, NULL, 0) == -1)
241 fatal("Couldn't wait for ssh process: %s", strerror(errno));