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 | 34bb567 | 2003-05-15 13:49:58 +1000 | [diff] [blame] | 27 | RCSID("$OpenBSD: sftp.c,v 1.35 2003/05/15 03:44:00 mouring Exp $"); |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 28 | |
| 29 | #include "buffer.h" |
| 30 | #include "xmalloc.h" |
| 31 | #include "log.h" |
| 32 | #include "pathnames.h" |
Ben Lindstrom | 4529b70 | 2001-05-03 23:39:53 +0000 | [diff] [blame] | 33 | #include "misc.h" |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 34 | |
| 35 | #include "sftp.h" |
| 36 | #include "sftp-common.h" |
| 37 | #include "sftp-client.h" |
| 38 | #include "sftp-int.h" |
| 39 | |
Kevin Steves | 12888d1 | 2001-03-05 19:50:57 +0000 | [diff] [blame] | 40 | #ifdef HAVE___PROGNAME |
| 41 | extern char *__progname; |
| 42 | #else |
| 43 | char *__progname; |
| 44 | #endif |
| 45 | |
Ben Lindstrom | 562c26b | 2001-03-07 01:26:48 +0000 | [diff] [blame] | 46 | FILE* infile; |
Damien Miller | 8829d36 | 2002-02-08 22:04:05 +1100 | [diff] [blame] | 47 | size_t copy_buffer_len = 32768; |
Damien Miller | 16a1333 | 2002-02-13 14:03:56 +1100 | [diff] [blame] | 48 | size_t num_requests = 16; |
Damien Miller | d7686fd | 2001-02-10 00:40:03 +1100 | [diff] [blame] | 49 | |
Damien Miller | 62d57f6 | 2003-01-10 21:43:24 +1100 | [diff] [blame] | 50 | extern int showprogress; |
| 51 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 52 | static void |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame] | 53 | 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] | 54 | { |
| 55 | int c_in, c_out; |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 56 | |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 57 | #ifdef USE_PIPES |
| 58 | int pin[2], pout[2]; |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 59 | |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 60 | if ((pipe(pin) == -1) || (pipe(pout) == -1)) |
| 61 | fatal("pipe: %s", strerror(errno)); |
| 62 | *in = pin[0]; |
| 63 | *out = pout[1]; |
| 64 | c_in = pout[0]; |
| 65 | c_out = pin[1]; |
| 66 | #else /* USE_PIPES */ |
| 67 | int inout[2]; |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 68 | |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 69 | if (socketpair(AF_UNIX, SOCK_STREAM, 0, inout) == -1) |
| 70 | fatal("socketpair: %s", strerror(errno)); |
| 71 | *in = *out = inout[0]; |
| 72 | c_in = c_out = inout[1]; |
| 73 | #endif /* USE_PIPES */ |
| 74 | |
| 75 | if ((*sshpid = fork()) == -1) |
| 76 | fatal("fork: %s", strerror(errno)); |
| 77 | else if (*sshpid == 0) { |
| 78 | if ((dup2(c_in, STDIN_FILENO) == -1) || |
| 79 | (dup2(c_out, STDOUT_FILENO) == -1)) { |
| 80 | fprintf(stderr, "dup2: %s\n", strerror(errno)); |
| 81 | exit(1); |
| 82 | } |
| 83 | close(*in); |
| 84 | close(*out); |
| 85 | close(c_in); |
| 86 | close(c_out); |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame] | 87 | execv(path, args); |
| 88 | fprintf(stderr, "exec: %s: %s\n", path, strerror(errno)); |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 89 | exit(1); |
| 90 | } |
| 91 | |
| 92 | close(c_in); |
| 93 | close(c_out); |
| 94 | } |
| 95 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 96 | static void |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 97 | usage(void) |
| 98 | { |
Damien Miller | 025e01c | 2002-02-08 22:06:29 +1100 | [diff] [blame] | 99 | extern char *__progname; |
Ben Lindstrom | 6328ab3 | 2002-03-22 02:54:23 +0000 | [diff] [blame] | 100 | |
Ben Lindstrom | 1e24324 | 2001-09-18 05:38:44 +0000 | [diff] [blame] | 101 | fprintf(stderr, |
Damien Miller | 025e01c | 2002-02-08 22:06:29 +1100 | [diff] [blame] | 102 | "usage: %s [-vC1] [-b batchfile] [-o option] [-s subsystem|path] [-B buffer_size]\n" |
| 103 | " [-F config] [-P direct server path] [-S program]\n" |
| 104 | " [user@]host[:file [file]]\n", __progname); |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 105 | exit(1); |
| 106 | } |
| 107 | |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 108 | int |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 109 | main(int argc, char **argv) |
| 110 | { |
Damien Miller | 956f3fb | 2003-01-10 21:40:00 +1100 | [diff] [blame] | 111 | int in, out, ch, err; |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 112 | pid_t sshpid; |
Ben Lindstrom | 63667f6 | 2001-04-13 00:00:14 +0000 | [diff] [blame] | 113 | char *host, *userhost, *cp, *file2; |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 114 | int debug_level = 0, sshver = 2; |
| 115 | char *file1 = NULL, *sftp_server = NULL; |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame] | 116 | char *ssh_program = _PATH_SSH_PROGRAM, *sftp_direct = NULL; |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 117 | LogLevel ll = SYSLOG_LEVEL_INFO; |
| 118 | arglist args; |
Damien Miller | d7686fd | 2001-02-10 00:40:03 +1100 | [diff] [blame] | 119 | extern int optind; |
| 120 | extern char *optarg; |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 121 | |
Kevin Steves | 12888d1 | 2001-03-05 19:50:57 +0000 | [diff] [blame] | 122 | __progname = get_progname(argv[0]); |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 123 | args.list = NULL; |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 124 | addargs(&args, "ssh"); /* overwritten with ssh_program */ |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 125 | addargs(&args, "-oForwardX11 no"); |
| 126 | addargs(&args, "-oForwardAgent no"); |
Ben Lindstrom | 2b7a0e9 | 2001-09-20 00:57:55 +0000 | [diff] [blame] | 127 | addargs(&args, "-oClearAllForwardings yes"); |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 128 | ll = SYSLOG_LEVEL_INFO; |
| 129 | infile = stdin; /* Read from STDIN unless changed by -b */ |
Damien Miller | d7686fd | 2001-02-10 00:40:03 +1100 | [diff] [blame] | 130 | |
Damien Miller | 16a1333 | 2002-02-13 14:03:56 +1100 | [diff] [blame] | 131 | while ((ch = getopt(argc, argv, "1hvCo:s:S:b:B:F:P:R:")) != -1) { |
Damien Miller | d7686fd | 2001-02-10 00:40:03 +1100 | [diff] [blame] | 132 | switch (ch) { |
| 133 | case 'C': |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 134 | addargs(&args, "-C"); |
Damien Miller | d7686fd | 2001-02-10 00:40:03 +1100 | [diff] [blame] | 135 | break; |
| 136 | case 'v': |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 137 | if (debug_level < 3) { |
| 138 | addargs(&args, "-v"); |
| 139 | ll = SYSLOG_LEVEL_DEBUG1 + debug_level; |
| 140 | } |
| 141 | debug_level++; |
Damien Miller | d7686fd | 2001-02-10 00:40:03 +1100 | [diff] [blame] | 142 | break; |
Ben Lindstrom | 1e24324 | 2001-09-18 05:38:44 +0000 | [diff] [blame] | 143 | case 'F': |
Damien Miller | d7686fd | 2001-02-10 00:40:03 +1100 | [diff] [blame] | 144 | case 'o': |
Ben Lindstrom | 1e24324 | 2001-09-18 05:38:44 +0000 | [diff] [blame] | 145 | addargs(&args, "-%c%s", ch, optarg); |
Damien Miller | d7686fd | 2001-02-10 00:40:03 +1100 | [diff] [blame] | 146 | break; |
| 147 | case '1': |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 148 | sshver = 1; |
Damien Miller | d7686fd | 2001-02-10 00:40:03 +1100 | [diff] [blame] | 149 | if (sftp_server == NULL) |
| 150 | sftp_server = _PATH_SFTP_SERVER; |
| 151 | break; |
| 152 | case 's': |
| 153 | sftp_server = optarg; |
| 154 | break; |
| 155 | case 'S': |
| 156 | ssh_program = optarg; |
| 157 | break; |
Ben Lindstrom | 562c26b | 2001-03-07 01:26:48 +0000 | [diff] [blame] | 158 | case 'b': |
| 159 | if (infile == stdin) { |
| 160 | infile = fopen(optarg, "r"); |
Ben Lindstrom | a370005 | 2001-04-05 23:26:32 +0000 | [diff] [blame] | 161 | if (infile == NULL) |
Ben Lindstrom | 562c26b | 2001-03-07 01:26:48 +0000 | [diff] [blame] | 162 | fatal("%s (%s).", strerror(errno), optarg); |
Ben Lindstrom | a370005 | 2001-04-05 23:26:32 +0000 | [diff] [blame] | 163 | } else |
Ben Lindstrom | 562c26b | 2001-03-07 01:26:48 +0000 | [diff] [blame] | 164 | fatal("Filename already specified."); |
Damien Miller | 62d57f6 | 2003-01-10 21:43:24 +1100 | [diff] [blame] | 165 | showprogress = 0; |
Ben Lindstrom | 562c26b | 2001-03-07 01:26:48 +0000 | [diff] [blame] | 166 | break; |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame] | 167 | case 'P': |
| 168 | sftp_direct = optarg; |
| 169 | break; |
Damien Miller | 8829d36 | 2002-02-08 22:04:05 +1100 | [diff] [blame] | 170 | case 'B': |
| 171 | copy_buffer_len = strtol(optarg, &cp, 10); |
| 172 | if (copy_buffer_len == 0 || *cp != '\0') |
| 173 | fatal("Invalid buffer size \"%s\"", optarg); |
| 174 | break; |
Damien Miller | 16a1333 | 2002-02-13 14:03:56 +1100 | [diff] [blame] | 175 | case 'R': |
| 176 | num_requests = strtol(optarg, &cp, 10); |
| 177 | if (num_requests == 0 || *cp != '\0') |
Ben Lindstrom | 6328ab3 | 2002-03-22 02:54:23 +0000 | [diff] [blame] | 178 | fatal("Invalid number of requests \"%s\"", |
Damien Miller | 16a1333 | 2002-02-13 14:03:56 +1100 | [diff] [blame] | 179 | optarg); |
| 180 | break; |
Damien Miller | d7686fd | 2001-02-10 00:40:03 +1100 | [diff] [blame] | 181 | case 'h': |
| 182 | default: |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 183 | usage(); |
| 184 | } |
| 185 | } |
| 186 | |
Ben Lindstrom | 2f3d52a | 2002-04-02 21:06:18 +0000 | [diff] [blame] | 187 | log_init(argv[0], ll, SYSLOG_FACILITY_USER, 1); |
| 188 | |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame] | 189 | if (sftp_direct == NULL) { |
| 190 | if (optind == argc || argc > (optind + 2)) |
| 191 | usage(); |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 192 | |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame] | 193 | userhost = xstrdup(argv[optind]); |
| 194 | file2 = argv[optind+1]; |
Ben Lindstrom | 63667f6 | 2001-04-13 00:00:14 +0000 | [diff] [blame] | 195 | |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame] | 196 | if ((cp = colon(userhost)) != NULL) { |
| 197 | *cp++ = '\0'; |
| 198 | file1 = cp; |
| 199 | } |
Damien Miller | d7686fd | 2001-02-10 00:40:03 +1100 | [diff] [blame] | 200 | |
Ben Lindstrom | c276c12 | 2002-12-23 02:14:51 +0000 | [diff] [blame] | 201 | if ((host = strrchr(userhost, '@')) == NULL) |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame] | 202 | host = userhost; |
| 203 | else { |
| 204 | *host++ = '\0'; |
| 205 | if (!userhost[0]) { |
| 206 | fprintf(stderr, "Missing username\n"); |
| 207 | usage(); |
| 208 | } |
| 209 | addargs(&args, "-l%s",userhost); |
| 210 | } |
| 211 | |
| 212 | host = cleanhostname(host); |
| 213 | if (!*host) { |
| 214 | fprintf(stderr, "Missing hostname\n"); |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 215 | usage(); |
| 216 | } |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame] | 217 | |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame] | 218 | addargs(&args, "-oProtocol %d", sshver); |
| 219 | |
| 220 | /* no subsystem if the server-spec contains a '/' */ |
| 221 | if (sftp_server == NULL || strchr(sftp_server, '/') == NULL) |
| 222 | addargs(&args, "-s"); |
| 223 | |
| 224 | addargs(&args, "%s", host); |
Ben Lindstrom | 6328ab3 | 2002-03-22 02:54:23 +0000 | [diff] [blame] | 225 | addargs(&args, "%s", (sftp_server != NULL ? |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame] | 226 | sftp_server : "sftp")); |
| 227 | args.list[0] = ssh_program; |
| 228 | |
| 229 | fprintf(stderr, "Connecting to %s...\n", host); |
Ben Lindstrom | 6328ab3 | 2002-03-22 02:54:23 +0000 | [diff] [blame] | 230 | connect_to_server(ssh_program, args.list, &in, &out, |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame] | 231 | &sshpid); |
| 232 | } else { |
| 233 | args.list = NULL; |
| 234 | addargs(&args, "sftp-server"); |
| 235 | |
| 236 | fprintf(stderr, "Attaching to %s...\n", sftp_direct); |
Ben Lindstrom | 6328ab3 | 2002-03-22 02:54:23 +0000 | [diff] [blame] | 237 | connect_to_server(sftp_direct, args.list, &in, &out, |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame] | 238 | &sshpid); |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 239 | } |
| 240 | |
Damien Miller | 956f3fb | 2003-01-10 21:40:00 +1100 | [diff] [blame] | 241 | err = interactive_loop(in, out, file1, file2); |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 242 | |
Ben Lindstrom | 10b9bf9 | 2001-02-26 20:04:45 +0000 | [diff] [blame] | 243 | #if !defined(USE_PIPES) |
Ben Lindstrom | 5a6abda | 2002-06-09 19:41:48 +0000 | [diff] [blame] | 244 | shutdown(in, SHUT_RDWR); |
| 245 | shutdown(out, SHUT_RDWR); |
Ben Lindstrom | 10b9bf9 | 2001-02-26 20:04:45 +0000 | [diff] [blame] | 246 | #endif |
| 247 | |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 248 | close(in); |
| 249 | close(out); |
Ben Lindstrom | 562c26b | 2001-03-07 01:26:48 +0000 | [diff] [blame] | 250 | if (infile != stdin) |
| 251 | fclose(infile); |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 252 | |
Ben Lindstrom | 47fd811 | 2002-04-02 20:48:19 +0000 | [diff] [blame] | 253 | while (waitpid(sshpid, NULL, 0) == -1) |
| 254 | if (errno != EINTR) |
| 255 | fatal("Couldn't wait for ssh process: %s", |
| 256 | strerror(errno)); |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 257 | |
Damien Miller | 956f3fb | 2003-01-10 21:40:00 +1100 | [diff] [blame] | 258 | exit(err == 0 ? 0 : 1); |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 259 | } |