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 1.17 2001/05/08 19:45:25 mouring 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));
96 fprintf(stderr, "usage: sftp [-1vC] [-b batchfile] [-osshopt=value] [user@]host[:file [file]]\n");
101 main(int argc, char **argv)
105 char *host, *userhost, *cp, *file2;
106 int debug_level = 0, sshver = 2;
107 char *file1 = NULL, *sftp_server = NULL;
108 LogLevel ll = SYSLOG_LEVEL_INFO;
113 __progname = get_progname(argv[0]);
115 addargs(&args, "ssh"); /* overwritten with ssh_program */
116 addargs(&args, "-oFallBackToRsh no");
117 addargs(&args, "-oForwardX11 no");
118 addargs(&args, "-oForwardAgent no");
119 ll = SYSLOG_LEVEL_INFO;
120 infile = stdin; /* Read from STDIN unless changed by -b */
122 while ((ch = getopt(argc, argv, "1hvCo:s:S:b:")) != -1) {
125 addargs(&args, "-C");
128 if (debug_level < 3) {
129 addargs(&args, "-v");
130 ll = SYSLOG_LEVEL_DEBUG1 + debug_level;
135 addargs(&args, "-o%s", optarg);
139 if (sftp_server == NULL)
140 sftp_server = _PATH_SFTP_SERVER;
143 sftp_server = optarg;
146 ssh_program = optarg;
149 if (infile == stdin) {
150 infile = fopen(optarg, "r");
152 fatal("%s (%s).", strerror(errno), optarg);
154 fatal("Filename already specified.");
162 if (optind == argc || argc > (optind + 2))
165 userhost = xstrdup(argv[optind]);
166 file2 = argv[optind+1];
168 if ((cp = colon(userhost)) != NULL) {
173 if ((host = strchr(userhost, '@')) == NULL)
178 fprintf(stderr, "Missing username\n");
181 addargs(&args, "-l%s",userhost);
184 host = cleanhostname(host);
186 fprintf(stderr, "Missing hostname\n");
190 log_init(argv[0], ll, SYSLOG_FACILITY_USER, 1);
191 addargs(&args, "-oProtocol %d", sshver);
193 /* no subsystem if the server-spec contains a '/' */
194 if (sftp_server == NULL || strchr(sftp_server, '/') == NULL)
195 addargs(&args, "-s");
197 addargs(&args, "%s", host);
198 addargs(&args, "%s", (sftp_server != NULL ? sftp_server : "sftp"));
199 args.list[0] = ssh_program;
201 fprintf(stderr, "Connecting to %s...\n", host);
203 connect_to_server(args.list, &in, &out, &sshpid);
205 interactive_loop(in, out, file1, file2);
207 #if !defined(USE_PIPES)
208 shutdown(in, SHUT_RDWR);
209 shutdown(out, SHUT_RDWR);
217 if (waitpid(sshpid, NULL, 0) == -1)
218 fatal("Couldn't wait for ssh process: %s", strerror(errno));