Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 1 | /* |
Damien Miller | 4e60ed7 | 2004-02-17 17:07:59 +1100 | [diff] [blame^] | 2 | * Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org> |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 3 | * |
Damien Miller | 4e60ed7 | 2004-02-17 17:07:59 +1100 | [diff] [blame^] | 4 | * Permission to use, copy, modify, and distribute this software for any |
| 5 | * purpose with or without fee is hereby granted, provided that the above |
| 6 | * copyright notice and this permission notice appear in all copies. |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 7 | * |
Damien Miller | 4e60ed7 | 2004-02-17 17:07:59 +1100 | [diff] [blame^] | 8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| 9 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| 10 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| 11 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 13 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| 14 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 15 | */ |
| 16 | |
| 17 | #include "includes.h" |
| 18 | |
Damien Miller | 4e60ed7 | 2004-02-17 17:07:59 +1100 | [diff] [blame^] | 19 | RCSID("$OpenBSD: sftp.c,v 1.42 2004/02/17 05:39:51 djm Exp $"); |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 20 | |
| 21 | #include "buffer.h" |
| 22 | #include "xmalloc.h" |
| 23 | #include "log.h" |
| 24 | #include "pathnames.h" |
Ben Lindstrom | 4529b70 | 2001-05-03 23:39:53 +0000 | [diff] [blame] | 25 | #include "misc.h" |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 26 | |
| 27 | #include "sftp.h" |
| 28 | #include "sftp-common.h" |
| 29 | #include "sftp-client.h" |
| 30 | #include "sftp-int.h" |
| 31 | |
Kevin Steves | 12888d1 | 2001-03-05 19:50:57 +0000 | [diff] [blame] | 32 | #ifdef HAVE___PROGNAME |
| 33 | extern char *__progname; |
| 34 | #else |
| 35 | char *__progname; |
| 36 | #endif |
| 37 | |
Damien Miller | e4f5a82 | 2004-01-21 14:11:05 +1100 | [diff] [blame] | 38 | FILE* infile; |
Damien Miller | 44f75c1 | 2004-01-21 10:58:47 +1100 | [diff] [blame] | 39 | int batchmode = 0; |
Damien Miller | 8829d36 | 2002-02-08 22:04:05 +1100 | [diff] [blame] | 40 | size_t copy_buffer_len = 32768; |
Damien Miller | 16a1333 | 2002-02-13 14:03:56 +1100 | [diff] [blame] | 41 | size_t num_requests = 16; |
Damien Miller | cc685c1 | 2003-06-04 22:51:38 +1000 | [diff] [blame] | 42 | static pid_t sshpid = -1; |
Damien Miller | d7686fd | 2001-02-10 00:40:03 +1100 | [diff] [blame] | 43 | |
Damien Miller | 62d57f6 | 2003-01-10 21:43:24 +1100 | [diff] [blame] | 44 | extern int showprogress; |
| 45 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 46 | static void |
Damien Miller | cc685c1 | 2003-06-04 22:51:38 +1000 | [diff] [blame] | 47 | killchild(int signo) |
| 48 | { |
| 49 | if (sshpid > 1) |
| 50 | kill(sshpid, signo); |
| 51 | |
| 52 | _exit(1); |
| 53 | } |
| 54 | |
| 55 | static void |
| 56 | connect_to_server(char *path, char **args, int *in, int *out) |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 57 | { |
| 58 | int c_in, c_out; |
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 | #ifdef USE_PIPES |
| 61 | int pin[2], pout[2]; |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 62 | |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 63 | if ((pipe(pin) == -1) || (pipe(pout) == -1)) |
| 64 | fatal("pipe: %s", strerror(errno)); |
| 65 | *in = pin[0]; |
| 66 | *out = pout[1]; |
| 67 | c_in = pout[0]; |
| 68 | c_out = pin[1]; |
| 69 | #else /* USE_PIPES */ |
| 70 | int inout[2]; |
Ben Lindstrom | b1f483f | 2002-06-23 21:27:18 +0000 | [diff] [blame] | 71 | |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 72 | if (socketpair(AF_UNIX, SOCK_STREAM, 0, inout) == -1) |
| 73 | fatal("socketpair: %s", strerror(errno)); |
| 74 | *in = *out = inout[0]; |
| 75 | c_in = c_out = inout[1]; |
| 76 | #endif /* USE_PIPES */ |
| 77 | |
Damien Miller | cc685c1 | 2003-06-04 22:51:38 +1000 | [diff] [blame] | 78 | if ((sshpid = fork()) == -1) |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 79 | fatal("fork: %s", strerror(errno)); |
Damien Miller | cc685c1 | 2003-06-04 22:51:38 +1000 | [diff] [blame] | 80 | else if (sshpid == 0) { |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 81 | if ((dup2(c_in, STDIN_FILENO) == -1) || |
| 82 | (dup2(c_out, STDOUT_FILENO) == -1)) { |
| 83 | fprintf(stderr, "dup2: %s\n", strerror(errno)); |
| 84 | exit(1); |
| 85 | } |
| 86 | close(*in); |
| 87 | close(*out); |
| 88 | close(c_in); |
| 89 | close(c_out); |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame] | 90 | execv(path, args); |
| 91 | fprintf(stderr, "exec: %s: %s\n", path, strerror(errno)); |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 92 | exit(1); |
| 93 | } |
| 94 | |
Damien Miller | cc685c1 | 2003-06-04 22:51:38 +1000 | [diff] [blame] | 95 | signal(SIGTERM, killchild); |
| 96 | signal(SIGINT, killchild); |
| 97 | signal(SIGHUP, killchild); |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 98 | close(c_in); |
| 99 | close(c_out); |
| 100 | } |
| 101 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 102 | static void |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 103 | usage(void) |
| 104 | { |
Damien Miller | 025e01c | 2002-02-08 22:06:29 +1100 | [diff] [blame] | 105 | extern char *__progname; |
Ben Lindstrom | 6328ab3 | 2002-03-22 02:54:23 +0000 | [diff] [blame] | 106 | |
Ben Lindstrom | 1e24324 | 2001-09-18 05:38:44 +0000 | [diff] [blame] | 107 | fprintf(stderr, |
Darren Tucker | 1f20394 | 2003-10-15 15:50:42 +1000 | [diff] [blame] | 108 | "usage: %s [-1Cv] [-B buffer_size] [-b batchfile] [-F ssh_config]\n" |
| 109 | " [-o ssh_option] [-P sftp_server_path] [-R num_requests]\n" |
| 110 | " [-S program] [-s subsystem | sftp_server] host\n" |
| 111 | " %s [[user@]host[:file [file]]]\n" |
| 112 | " %s [[user@]host[:dir[/]]]\n" |
| 113 | " %s -b batchfile [user@]host\n", __progname, __progname, __progname, __progname); |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 114 | exit(1); |
| 115 | } |
| 116 | |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 117 | int |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 118 | main(int argc, char **argv) |
| 119 | { |
Damien Miller | 956f3fb | 2003-01-10 21:40:00 +1100 | [diff] [blame] | 120 | int in, out, ch, err; |
Ben Lindstrom | 63667f6 | 2001-04-13 00:00:14 +0000 | [diff] [blame] | 121 | char *host, *userhost, *cp, *file2; |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 122 | int debug_level = 0, sshver = 2; |
| 123 | char *file1 = NULL, *sftp_server = NULL; |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame] | 124 | char *ssh_program = _PATH_SSH_PROGRAM, *sftp_direct = NULL; |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 125 | LogLevel ll = SYSLOG_LEVEL_INFO; |
| 126 | arglist args; |
Damien Miller | d7686fd | 2001-02-10 00:40:03 +1100 | [diff] [blame] | 127 | extern int optind; |
| 128 | extern char *optarg; |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 129 | |
Damien Miller | 59d3d5b | 2003-08-22 09:34:41 +1000 | [diff] [blame] | 130 | __progname = ssh_get_progname(argv[0]); |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 131 | args.list = NULL; |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 132 | addargs(&args, "ssh"); /* overwritten with ssh_program */ |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 133 | addargs(&args, "-oForwardX11 no"); |
| 134 | addargs(&args, "-oForwardAgent no"); |
Ben Lindstrom | 2b7a0e9 | 2001-09-20 00:57:55 +0000 | [diff] [blame] | 135 | addargs(&args, "-oClearAllForwardings yes"); |
Damien Miller | e4f5a82 | 2004-01-21 14:11:05 +1100 | [diff] [blame] | 136 | |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 137 | ll = SYSLOG_LEVEL_INFO; |
Damien Miller | e4f5a82 | 2004-01-21 14:11:05 +1100 | [diff] [blame] | 138 | infile = stdin; |
Damien Miller | d7686fd | 2001-02-10 00:40:03 +1100 | [diff] [blame] | 139 | |
Damien Miller | 16a1333 | 2002-02-13 14:03:56 +1100 | [diff] [blame] | 140 | 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] | 141 | switch (ch) { |
| 142 | case 'C': |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 143 | addargs(&args, "-C"); |
Damien Miller | d7686fd | 2001-02-10 00:40:03 +1100 | [diff] [blame] | 144 | break; |
| 145 | case 'v': |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 146 | if (debug_level < 3) { |
| 147 | addargs(&args, "-v"); |
| 148 | ll = SYSLOG_LEVEL_DEBUG1 + debug_level; |
| 149 | } |
| 150 | debug_level++; |
Damien Miller | d7686fd | 2001-02-10 00:40:03 +1100 | [diff] [blame] | 151 | break; |
Ben Lindstrom | 1e24324 | 2001-09-18 05:38:44 +0000 | [diff] [blame] | 152 | case 'F': |
Damien Miller | d7686fd | 2001-02-10 00:40:03 +1100 | [diff] [blame] | 153 | case 'o': |
Ben Lindstrom | 1e24324 | 2001-09-18 05:38:44 +0000 | [diff] [blame] | 154 | addargs(&args, "-%c%s", ch, optarg); |
Damien Miller | d7686fd | 2001-02-10 00:40:03 +1100 | [diff] [blame] | 155 | break; |
| 156 | case '1': |
Ben Lindstrom | 387c472 | 2001-05-08 20:27:25 +0000 | [diff] [blame] | 157 | sshver = 1; |
Damien Miller | d7686fd | 2001-02-10 00:40:03 +1100 | [diff] [blame] | 158 | if (sftp_server == NULL) |
| 159 | sftp_server = _PATH_SFTP_SERVER; |
| 160 | break; |
| 161 | case 's': |
| 162 | sftp_server = optarg; |
| 163 | break; |
| 164 | case 'S': |
| 165 | ssh_program = optarg; |
| 166 | break; |
Ben Lindstrom | 562c26b | 2001-03-07 01:26:48 +0000 | [diff] [blame] | 167 | case 'b': |
Damien Miller | 44f75c1 | 2004-01-21 10:58:47 +1100 | [diff] [blame] | 168 | if (batchmode) |
| 169 | fatal("Batch file already specified."); |
| 170 | |
| 171 | /* Allow "-" as stdin */ |
| 172 | if (strcmp(optarg, "-") != 0 && |
| 173 | (infile = fopen(optarg, "r")) == NULL) |
| 174 | fatal("%s (%s).", strerror(errno), optarg); |
Damien Miller | 62d57f6 | 2003-01-10 21:43:24 +1100 | [diff] [blame] | 175 | showprogress = 0; |
Damien Miller | 44f75c1 | 2004-01-21 10:58:47 +1100 | [diff] [blame] | 176 | batchmode = 1; |
Ben Lindstrom | 562c26b | 2001-03-07 01:26:48 +0000 | [diff] [blame] | 177 | break; |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame] | 178 | case 'P': |
| 179 | sftp_direct = optarg; |
| 180 | break; |
Damien Miller | 8829d36 | 2002-02-08 22:04:05 +1100 | [diff] [blame] | 181 | case 'B': |
| 182 | copy_buffer_len = strtol(optarg, &cp, 10); |
| 183 | if (copy_buffer_len == 0 || *cp != '\0') |
| 184 | fatal("Invalid buffer size \"%s\"", optarg); |
| 185 | break; |
Damien Miller | 16a1333 | 2002-02-13 14:03:56 +1100 | [diff] [blame] | 186 | case 'R': |
| 187 | num_requests = strtol(optarg, &cp, 10); |
| 188 | if (num_requests == 0 || *cp != '\0') |
Ben Lindstrom | 6328ab3 | 2002-03-22 02:54:23 +0000 | [diff] [blame] | 189 | fatal("Invalid number of requests \"%s\"", |
Damien Miller | 16a1333 | 2002-02-13 14:03:56 +1100 | [diff] [blame] | 190 | optarg); |
| 191 | break; |
Damien Miller | d7686fd | 2001-02-10 00:40:03 +1100 | [diff] [blame] | 192 | case 'h': |
| 193 | default: |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 194 | usage(); |
| 195 | } |
| 196 | } |
| 197 | |
Ben Lindstrom | 2f3d52a | 2002-04-02 21:06:18 +0000 | [diff] [blame] | 198 | log_init(argv[0], ll, SYSLOG_FACILITY_USER, 1); |
| 199 | |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame] | 200 | if (sftp_direct == NULL) { |
| 201 | if (optind == argc || argc > (optind + 2)) |
| 202 | usage(); |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 203 | |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame] | 204 | userhost = xstrdup(argv[optind]); |
| 205 | file2 = argv[optind+1]; |
Ben Lindstrom | 63667f6 | 2001-04-13 00:00:14 +0000 | [diff] [blame] | 206 | |
Ben Lindstrom | c276c12 | 2002-12-23 02:14:51 +0000 | [diff] [blame] | 207 | if ((host = strrchr(userhost, '@')) == NULL) |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame] | 208 | host = userhost; |
| 209 | else { |
| 210 | *host++ = '\0'; |
| 211 | if (!userhost[0]) { |
| 212 | fprintf(stderr, "Missing username\n"); |
| 213 | usage(); |
| 214 | } |
| 215 | addargs(&args, "-l%s",userhost); |
| 216 | } |
| 217 | |
Damien Miller | ec69203 | 2004-01-27 21:22:00 +1100 | [diff] [blame] | 218 | if ((cp = colon(host)) != NULL) { |
| 219 | *cp++ = '\0'; |
| 220 | file1 = cp; |
| 221 | } |
| 222 | |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame] | 223 | host = cleanhostname(host); |
| 224 | if (!*host) { |
| 225 | fprintf(stderr, "Missing hostname\n"); |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 226 | usage(); |
| 227 | } |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame] | 228 | |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame] | 229 | addargs(&args, "-oProtocol %d", sshver); |
| 230 | |
| 231 | /* no subsystem if the server-spec contains a '/' */ |
| 232 | if (sftp_server == NULL || strchr(sftp_server, '/') == NULL) |
| 233 | addargs(&args, "-s"); |
| 234 | |
| 235 | addargs(&args, "%s", host); |
Ben Lindstrom | 6328ab3 | 2002-03-22 02:54:23 +0000 | [diff] [blame] | 236 | addargs(&args, "%s", (sftp_server != NULL ? |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame] | 237 | sftp_server : "sftp")); |
| 238 | args.list[0] = ssh_program; |
| 239 | |
Damien Miller | 44f75c1 | 2004-01-21 10:58:47 +1100 | [diff] [blame] | 240 | if (!batchmode) |
| 241 | fprintf(stderr, "Connecting to %s...\n", host); |
Damien Miller | cc685c1 | 2003-06-04 22:51:38 +1000 | [diff] [blame] | 242 | connect_to_server(ssh_program, args.list, &in, &out); |
Damien Miller | d14ee1e | 2002-02-05 12:27:31 +1100 | [diff] [blame] | 243 | } else { |
| 244 | args.list = NULL; |
| 245 | addargs(&args, "sftp-server"); |
| 246 | |
Damien Miller | 44f75c1 | 2004-01-21 10:58:47 +1100 | [diff] [blame] | 247 | if (!batchmode) |
| 248 | fprintf(stderr, "Attaching to %s...\n", sftp_direct); |
Damien Miller | cc685c1 | 2003-06-04 22:51:38 +1000 | [diff] [blame] | 249 | connect_to_server(sftp_direct, args.list, &in, &out); |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 250 | } |
| 251 | |
Damien Miller | 956f3fb | 2003-01-10 21:40:00 +1100 | [diff] [blame] | 252 | err = interactive_loop(in, out, file1, file2); |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 253 | |
Ben Lindstrom | 10b9bf9 | 2001-02-26 20:04:45 +0000 | [diff] [blame] | 254 | #if !defined(USE_PIPES) |
Ben Lindstrom | 5a6abda | 2002-06-09 19:41:48 +0000 | [diff] [blame] | 255 | shutdown(in, SHUT_RDWR); |
| 256 | shutdown(out, SHUT_RDWR); |
Ben Lindstrom | 10b9bf9 | 2001-02-26 20:04:45 +0000 | [diff] [blame] | 257 | #endif |
| 258 | |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 259 | close(in); |
| 260 | close(out); |
Damien Miller | 44f75c1 | 2004-01-21 10:58:47 +1100 | [diff] [blame] | 261 | if (batchmode) |
Ben Lindstrom | 562c26b | 2001-03-07 01:26:48 +0000 | [diff] [blame] | 262 | fclose(infile); |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 263 | |
Ben Lindstrom | 47fd811 | 2002-04-02 20:48:19 +0000 | [diff] [blame] | 264 | while (waitpid(sshpid, NULL, 0) == -1) |
| 265 | if (errno != EINTR) |
| 266 | fatal("Couldn't wait for ssh process: %s", |
| 267 | strerror(errno)); |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 268 | |
Damien Miller | 956f3fb | 2003-01-10 21:40:00 +1100 | [diff] [blame] | 269 | exit(err == 0 ? 0 : 1); |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 270 | } |