2 * Copyright (c) 2001 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 1.21 2001/09/19 19:24:19 stevesk Exp $");
29 /* XXX: commandline mode */
30 /* XXX: short-form remote directory listings (like 'ls -C') */
35 #include "pathnames.h"
39 #include "sftp-common.h"
40 #include "sftp-client.h"
43 #ifdef HAVE___PROGNAME
44 extern char *__progname;
49 char *ssh_program = _PATH_SSH_PROGRAM;
53 connect_to_server(char **args, int *in, int *out, pid_t *sshpid)
58 if ((pipe(pin) == -1) || (pipe(pout) == -1))
59 fatal("pipe: %s", strerror(errno));
66 if (socketpair(AF_UNIX, SOCK_STREAM, 0, inout) == -1)
67 fatal("socketpair: %s", strerror(errno));
68 *in = *out = inout[0];
69 c_in = c_out = inout[1];
70 #endif /* USE_PIPES */
72 if ((*sshpid = fork()) == -1)
73 fatal("fork: %s", strerror(errno));
74 else if (*sshpid == 0) {
75 if ((dup2(c_in, STDIN_FILENO) == -1) ||
76 (dup2(c_out, STDOUT_FILENO) == -1)) {
77 fprintf(stderr, "dup2: %s\n", strerror(errno));
84 execv(ssh_program, args);
85 fprintf(stderr, "exec: %s: %s\n", ssh_program, strerror(errno));
97 "usage: sftp [-1Cv] [-b batchfile] [-F config] [-o option] [-s subsystem|path]\n"
98 " [-S program] [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 LogLevel ll = SYSLOG_LEVEL_INFO;
115 __progname = get_progname(argv[0]);
117 addargs(&args, "ssh"); /* overwritten with ssh_program */
118 addargs(&args, "-oFallBackToRsh no");
119 addargs(&args, "-oForwardX11 no");
120 addargs(&args, "-oForwardAgent no");
121 addargs(&args, "-oClearAllForwardings yes");
122 ll = SYSLOG_LEVEL_INFO;
123 infile = stdin; /* Read from STDIN unless changed by -b */
125 while ((ch = getopt(argc, argv, "1hvCo:s:S:b:F:")) != -1) {
128 addargs(&args, "-C");
131 if (debug_level < 3) {
132 addargs(&args, "-v");
133 ll = SYSLOG_LEVEL_DEBUG1 + debug_level;
139 addargs(&args, "-%c%s", ch, optarg);
143 if (sftp_server == NULL)
144 sftp_server = _PATH_SFTP_SERVER;
147 sftp_server = optarg;
150 ssh_program = optarg;
153 if (infile == stdin) {
154 infile = fopen(optarg, "r");
156 fatal("%s (%s).", strerror(errno), optarg);
158 fatal("Filename already specified.");
166 if (optind == argc || argc > (optind + 2))
169 userhost = xstrdup(argv[optind]);
170 file2 = argv[optind+1];
172 if ((cp = colon(userhost)) != NULL) {
177 if ((host = strchr(userhost, '@')) == NULL)
182 fprintf(stderr, "Missing username\n");
185 addargs(&args, "-l%s",userhost);
188 host = cleanhostname(host);
190 fprintf(stderr, "Missing hostname\n");
194 log_init(argv[0], ll, SYSLOG_FACILITY_USER, 1);
195 addargs(&args, "-oProtocol %d", sshver);
197 /* no subsystem if the server-spec contains a '/' */
198 if (sftp_server == NULL || strchr(sftp_server, '/') == NULL)
199 addargs(&args, "-s");
201 addargs(&args, "%s", host);
202 addargs(&args, "%s", (sftp_server != NULL ? sftp_server : "sftp"));
203 args.list[0] = ssh_program;
205 fprintf(stderr, "Connecting to %s...\n", host);
207 connect_to_server(args.list, &in, &out, &sshpid);
209 interactive_loop(in, out, file1, file2);
211 #if !defined(USE_PIPES)
212 shutdown(in, SHUT_RDWR);
213 shutdown(out, SHUT_RDWR);
221 if (waitpid(sshpid, NULL, 0) == -1)
222 fatal("Couldn't wait for ssh process: %s", strerror(errno));