Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 1 | /* |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame^] | 2 | * Copyright (c) 2001,2002 Damien Miller. All rights reserved. |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 3 | * |
| 4 | * Redistribution and use in source and binary forms, with or without |
| 5 | * modification, are permitted provided that the following conditions |
| 6 | * are met: |
| 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. |
| 12 | * |
| 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. |
| 23 | */ |
| 24 | |
| 25 | #include "includes.h" |
| 26 | |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame^] | 27 | RCSID("$OpenBSD: sftp.c,v 1.23 2002/02/04 21:53:12 djm Exp $"); |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 28 | |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 29 | /* XXX: short-form remote directory listings (like 'ls -C') */ |
| 30 | |
| 31 | #include "buffer.h" |
| 32 | #include "xmalloc.h" |
| 33 | #include "log.h" |
| 34 | #include "pathnames.h" |
Ben Lindstrom | 4529b70 | 2001-05-03 23:39:53 +0000 | [diff] [blame] | 35 | #include "misc.h" |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 36 | |
| 37 | #include "sftp.h" |
| 38 | #include "sftp-common.h" |
| 39 | #include "sftp-client.h" |
| 40 | #include "sftp-int.h" |
| 41 | |
Kevin Steves | 12888d1 | 2001-03-05 19:50:57 +0000 | [diff] [blame] | 42 | #ifdef HAVE___PROGNAME |
| 43 | extern char *__progname; |
| 44 | #else |
| 45 | char *__progname; |
| 46 | #endif |
| 47 | |
Ben Lindstrom | 562c26b | 2001-03-07 01:26:48 +0000 | [diff] [blame] | 48 | FILE* infile; |
Damien Miller | d7686fd | 2001-02-10 00:40:03 +1100 | [diff] [blame] | 49 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 50 | static void |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame^] | 51 | connect_to_server(char *path, char **args, int *in, int *out, pid_t *sshpid) |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 52 | { |
| 53 | int c_in, c_out; |
| 54 | #ifdef USE_PIPES |
| 55 | int pin[2], pout[2]; |
| 56 | if ((pipe(pin) == -1) || (pipe(pout) == -1)) |
| 57 | fatal("pipe: %s", strerror(errno)); |
| 58 | *in = pin[0]; |
| 59 | *out = pout[1]; |
| 60 | c_in = pout[0]; |
| 61 | c_out = pin[1]; |
| 62 | #else /* USE_PIPES */ |
| 63 | int inout[2]; |
| 64 | if (socketpair(AF_UNIX, SOCK_STREAM, 0, inout) == -1) |
| 65 | fatal("socketpair: %s", strerror(errno)); |
| 66 | *in = *out = inout[0]; |
| 67 | c_in = c_out = inout[1]; |
| 68 | #endif /* USE_PIPES */ |
| 69 | |
| 70 | if ((*sshpid = fork()) == -1) |
| 71 | fatal("fork: %s", strerror(errno)); |
| 72 | else if (*sshpid == 0) { |
| 73 | if ((dup2(c_in, STDIN_FILENO) == -1) || |
| 74 | (dup2(c_out, STDOUT_FILENO) == -1)) { |
| 75 | fprintf(stderr, "dup2: %s\n", strerror(errno)); |
| 76 | exit(1); |
| 77 | } |
| 78 | close(*in); |
| 79 | close(*out); |
| 80 | close(c_in); |
| 81 | close(c_out); |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame^] | 82 | execv(path, args); |
| 83 | fprintf(stderr, "exec: %s: %s\n", path, strerror(errno)); |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 84 | exit(1); |
| 85 | } |
| 86 | |
| 87 | close(c_in); |
| 88 | close(c_out); |
| 89 | } |
| 90 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 91 | static void |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 92 | usage(void) |
| 93 | { |
Ben Lindstrom | 1e24324 | 2001-09-18 05:38:44 +0000 | [diff] [blame] | 94 | fprintf(stderr, |
Ben Lindstrom | 6a33763 | 2001-09-18 05:47:32 +0000 | [diff] [blame] | 95 | "usage: sftp [-1Cv] [-b batchfile] [-F config] [-o option] [-s subsystem|path]\n" |
| 96 | " [-S program] [user@]host[:file [file]]\n"); |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 97 | exit(1); |
| 98 | } |
| 99 | |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 100 | int |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 101 | main(int argc, char **argv) |
| 102 | { |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 103 | int in, out, ch; |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 104 | pid_t sshpid; |
Ben Lindstrom | 63667f6 | 2001-04-13 00:00:14 +0000 | [diff] [blame] | 105 | char *host, *userhost, *cp, *file2; |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 106 | int debug_level = 0, sshver = 2; |
| 107 | char *file1 = NULL, *sftp_server = NULL; |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame^] | 108 | char *ssh_program = _PATH_SSH_PROGRAM, *sftp_direct = NULL; |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 109 | LogLevel ll = SYSLOG_LEVEL_INFO; |
| 110 | arglist args; |
Damien Miller | d7686fd | 2001-02-10 00:40:03 +1100 | [diff] [blame] | 111 | extern int optind; |
| 112 | extern char *optarg; |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 113 | |
Kevin Steves | 12888d1 | 2001-03-05 19:50:57 +0000 | [diff] [blame] | 114 | __progname = get_progname(argv[0]); |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 115 | args.list = NULL; |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 116 | addargs(&args, "ssh"); /* overwritten with ssh_program */ |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 117 | addargs(&args, "-oFallBackToRsh no"); |
| 118 | addargs(&args, "-oForwardX11 no"); |
| 119 | addargs(&args, "-oForwardAgent no"); |
Ben Lindstrom | 2b7a0e9 | 2001-09-20 00:57:55 +0000 | [diff] [blame] | 120 | addargs(&args, "-oClearAllForwardings yes"); |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 121 | ll = SYSLOG_LEVEL_INFO; |
| 122 | infile = stdin; /* Read from STDIN unless changed by -b */ |
Damien Miller | d7686fd | 2001-02-10 00:40:03 +1100 | [diff] [blame] | 123 | |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame^] | 124 | while ((ch = getopt(argc, argv, "1hvCo:s:S:b:F:P:")) != -1) { |
Damien Miller | d7686fd | 2001-02-10 00:40:03 +1100 | [diff] [blame] | 125 | switch (ch) { |
| 126 | case 'C': |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 127 | addargs(&args, "-C"); |
Damien Miller | d7686fd | 2001-02-10 00:40:03 +1100 | [diff] [blame] | 128 | break; |
| 129 | case 'v': |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 130 | if (debug_level < 3) { |
| 131 | addargs(&args, "-v"); |
| 132 | ll = SYSLOG_LEVEL_DEBUG1 + debug_level; |
| 133 | } |
| 134 | debug_level++; |
Damien Miller | d7686fd | 2001-02-10 00:40:03 +1100 | [diff] [blame] | 135 | break; |
Ben Lindstrom | 1e24324 | 2001-09-18 05:38:44 +0000 | [diff] [blame] | 136 | case 'F': |
Damien Miller | d7686fd | 2001-02-10 00:40:03 +1100 | [diff] [blame] | 137 | case 'o': |
Ben Lindstrom | 1e24324 | 2001-09-18 05:38:44 +0000 | [diff] [blame] | 138 | addargs(&args, "-%c%s", ch, optarg); |
Damien Miller | d7686fd | 2001-02-10 00:40:03 +1100 | [diff] [blame] | 139 | break; |
| 140 | case '1': |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 141 | sshver = 1; |
Damien Miller | d7686fd | 2001-02-10 00:40:03 +1100 | [diff] [blame] | 142 | if (sftp_server == NULL) |
| 143 | sftp_server = _PATH_SFTP_SERVER; |
| 144 | break; |
| 145 | case 's': |
| 146 | sftp_server = optarg; |
| 147 | break; |
| 148 | case 'S': |
| 149 | ssh_program = optarg; |
| 150 | break; |
Ben Lindstrom | 562c26b | 2001-03-07 01:26:48 +0000 | [diff] [blame] | 151 | case 'b': |
| 152 | if (infile == stdin) { |
| 153 | infile = fopen(optarg, "r"); |
Ben Lindstrom | a370005 | 2001-04-05 23:26:32 +0000 | [diff] [blame] | 154 | if (infile == NULL) |
Ben Lindstrom | 562c26b | 2001-03-07 01:26:48 +0000 | [diff] [blame] | 155 | fatal("%s (%s).", strerror(errno), optarg); |
Ben Lindstrom | a370005 | 2001-04-05 23:26:32 +0000 | [diff] [blame] | 156 | } else |
Ben Lindstrom | 562c26b | 2001-03-07 01:26:48 +0000 | [diff] [blame] | 157 | fatal("Filename already specified."); |
| 158 | break; |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame^] | 159 | case 'P': |
| 160 | sftp_direct = optarg; |
| 161 | break; |
Damien Miller | d7686fd | 2001-02-10 00:40:03 +1100 | [diff] [blame] | 162 | case 'h': |
| 163 | default: |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 164 | usage(); |
| 165 | } |
| 166 | } |
| 167 | |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame^] | 168 | if (sftp_direct == NULL) { |
| 169 | if (optind == argc || argc > (optind + 2)) |
| 170 | usage(); |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 171 | |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame^] | 172 | userhost = xstrdup(argv[optind]); |
| 173 | file2 = argv[optind+1]; |
Ben Lindstrom | 63667f6 | 2001-04-13 00:00:14 +0000 | [diff] [blame] | 174 | |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame^] | 175 | if ((cp = colon(userhost)) != NULL) { |
| 176 | *cp++ = '\0'; |
| 177 | file1 = cp; |
| 178 | } |
Damien Miller | d7686fd | 2001-02-10 00:40:03 +1100 | [diff] [blame] | 179 | |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame^] | 180 | if ((host = strchr(userhost, '@')) == NULL) |
| 181 | host = userhost; |
| 182 | else { |
| 183 | *host++ = '\0'; |
| 184 | if (!userhost[0]) { |
| 185 | fprintf(stderr, "Missing username\n"); |
| 186 | usage(); |
| 187 | } |
| 188 | addargs(&args, "-l%s",userhost); |
| 189 | } |
| 190 | |
| 191 | host = cleanhostname(host); |
| 192 | if (!*host) { |
| 193 | fprintf(stderr, "Missing hostname\n"); |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 194 | usage(); |
| 195 | } |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame^] | 196 | |
| 197 | log_init(argv[0], ll, SYSLOG_FACILITY_USER, 1); |
| 198 | addargs(&args, "-oProtocol %d", sshver); |
| 199 | |
| 200 | /* no subsystem if the server-spec contains a '/' */ |
| 201 | if (sftp_server == NULL || strchr(sftp_server, '/') == NULL) |
| 202 | addargs(&args, "-s"); |
| 203 | |
| 204 | addargs(&args, "%s", host); |
| 205 | addargs(&args, "%s", (sftp_server != NULL ? |
| 206 | sftp_server : "sftp")); |
| 207 | args.list[0] = ssh_program; |
| 208 | |
| 209 | fprintf(stderr, "Connecting to %s...\n", host); |
| 210 | connect_to_server(ssh_program, args.list, &in, &out, |
| 211 | &sshpid); |
| 212 | } else { |
| 213 | args.list = NULL; |
| 214 | addargs(&args, "sftp-server"); |
| 215 | |
| 216 | fprintf(stderr, "Attaching to %s...\n", sftp_direct); |
| 217 | connect_to_server(sftp_direct, args.list, &in, &out, |
| 218 | &sshpid); |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 219 | } |
| 220 | |
Ben Lindstrom | 63667f6 | 2001-04-13 00:00:14 +0000 | [diff] [blame] | 221 | interactive_loop(in, out, file1, file2); |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 222 | |
Ben Lindstrom | 10b9bf9 | 2001-02-26 20:04:45 +0000 | [diff] [blame] | 223 | #if !defined(USE_PIPES) |
| 224 | shutdown(in, SHUT_RDWR); |
| 225 | shutdown(out, SHUT_RDWR); |
| 226 | #endif |
| 227 | |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 228 | close(in); |
| 229 | close(out); |
Ben Lindstrom | 562c26b | 2001-03-07 01:26:48 +0000 | [diff] [blame] | 230 | if (infile != stdin) |
| 231 | fclose(infile); |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 232 | |
Damien Miller | d7686fd | 2001-02-10 00:40:03 +1100 | [diff] [blame] | 233 | if (waitpid(sshpid, NULL, 0) == -1) |
| 234 | fatal("Couldn't wait for ssh process: %s", strerror(errno)); |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 235 | |
| 236 | exit(0); |
| 237 | } |