]>
Commit | Line | Data |
---|---|---|
61e96248 | 1 | /* |
2 | * Copyright (c) 2001 Damien Miller. All rights reserved. | |
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 | ||
184eed6a | 27 | RCSID("$OpenBSD: sftp.c,v 1.22 2001/12/19 07:18:56 deraadt Exp $"); |
61e96248 | 28 | |
29 | /* XXX: commandline mode */ | |
61e96248 | 30 | /* XXX: short-form remote directory listings (like 'ls -C') */ |
31 | ||
32 | #include "buffer.h" | |
33 | #include "xmalloc.h" | |
34 | #include "log.h" | |
35 | #include "pathnames.h" | |
1fcde3fe | 36 | #include "misc.h" |
61e96248 | 37 | |
38 | #include "sftp.h" | |
39 | #include "sftp-common.h" | |
40 | #include "sftp-client.h" | |
41 | #include "sftp-int.h" | |
42 | ||
5152d46f | 43 | #ifdef HAVE___PROGNAME |
44 | extern char *__progname; | |
45 | #else | |
46 | char *__progname; | |
47 | #endif | |
48 | ||
0426a3b4 | 49 | char *ssh_program = _PATH_SSH_PROGRAM; |
a5ec8a3d | 50 | FILE* infile; |
0426a3b4 | 51 | |
396c147e | 52 | static void |
61e96248 | 53 | connect_to_server(char **args, int *in, int *out, pid_t *sshpid) |
54 | { | |
55 | int c_in, c_out; | |
56 | #ifdef USE_PIPES | |
57 | int pin[2], pout[2]; | |
58 | if ((pipe(pin) == -1) || (pipe(pout) == -1)) | |
59 | fatal("pipe: %s", strerror(errno)); | |
60 | *in = pin[0]; | |
61 | *out = pout[1]; | |
62 | c_in = pout[0]; | |
63 | c_out = pin[1]; | |
64 | #else /* USE_PIPES */ | |
65 | int inout[2]; | |
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 */ | |
71 | ||
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)); | |
78 | exit(1); | |
79 | } | |
80 | close(*in); | |
81 | close(*out); | |
82 | close(c_in); | |
83 | close(c_out); | |
0426a3b4 | 84 | execv(ssh_program, args); |
85 | fprintf(stderr, "exec: %s: %s\n", ssh_program, strerror(errno)); | |
61e96248 | 86 | exit(1); |
87 | } | |
88 | ||
89 | close(c_in); | |
90 | close(c_out); | |
91 | } | |
92 | ||
396c147e | 93 | static void |
61e96248 | 94 | usage(void) |
95 | { | |
f1278af7 | 96 | fprintf(stderr, |
e3c1c3e6 | 97 | "usage: sftp [-1Cv] [-b batchfile] [-F config] [-o option] [-s subsystem|path]\n" |
98 | " [-S program] [user@]host[:file [file]]\n"); | |
61e96248 | 99 | exit(1); |
100 | } | |
101 | ||
2b87da3b | 102 | int |
61e96248 | 103 | main(int argc, char **argv) |
104 | { | |
8a624ebf | 105 | int in, out, ch; |
61e96248 | 106 | pid_t sshpid; |
edeeab1e | 107 | char *host, *userhost, *cp, *file2; |
8a624ebf | 108 | int debug_level = 0, sshver = 2; |
109 | char *file1 = NULL, *sftp_server = NULL; | |
110 | LogLevel ll = SYSLOG_LEVEL_INFO; | |
111 | arglist args; | |
0426a3b4 | 112 | extern int optind; |
113 | extern char *optarg; | |
61e96248 | 114 | |
5152d46f | 115 | __progname = get_progname(argv[0]); |
8a624ebf | 116 | args.list = NULL; |
184eed6a | 117 | addargs(&args, "ssh"); /* overwritten with ssh_program */ |
8a624ebf | 118 | addargs(&args, "-oFallBackToRsh no"); |
119 | addargs(&args, "-oForwardX11 no"); | |
120 | addargs(&args, "-oForwardAgent no"); | |
e1c5bfaf | 121 | addargs(&args, "-oClearAllForwardings yes"); |
8a624ebf | 122 | ll = SYSLOG_LEVEL_INFO; |
123 | infile = stdin; /* Read from STDIN unless changed by -b */ | |
0426a3b4 | 124 | |
f1278af7 | 125 | while ((ch = getopt(argc, argv, "1hvCo:s:S:b:F:")) != -1) { |
0426a3b4 | 126 | switch (ch) { |
127 | case 'C': | |
8a624ebf | 128 | addargs(&args, "-C"); |
0426a3b4 | 129 | break; |
130 | case 'v': | |
8a624ebf | 131 | if (debug_level < 3) { |
132 | addargs(&args, "-v"); | |
133 | ll = SYSLOG_LEVEL_DEBUG1 + debug_level; | |
134 | } | |
135 | debug_level++; | |
0426a3b4 | 136 | break; |
f1278af7 | 137 | case 'F': |
0426a3b4 | 138 | case 'o': |
f1278af7 | 139 | addargs(&args, "-%c%s", ch, optarg); |
0426a3b4 | 140 | break; |
141 | case '1': | |
8a624ebf | 142 | sshver = 1; |
0426a3b4 | 143 | if (sftp_server == NULL) |
144 | sftp_server = _PATH_SFTP_SERVER; | |
145 | break; | |
146 | case 's': | |
147 | sftp_server = optarg; | |
148 | break; | |
149 | case 'S': | |
150 | ssh_program = optarg; | |
151 | break; | |
a5ec8a3d | 152 | case 'b': |
153 | if (infile == stdin) { | |
154 | infile = fopen(optarg, "r"); | |
cd332296 | 155 | if (infile == NULL) |
a5ec8a3d | 156 | fatal("%s (%s).", strerror(errno), optarg); |
cd332296 | 157 | } else |
a5ec8a3d | 158 | fatal("Filename already specified."); |
159 | break; | |
0426a3b4 | 160 | case 'h': |
161 | default: | |
61e96248 | 162 | usage(); |
163 | } | |
164 | } | |
165 | ||
edeeab1e | 166 | if (optind == argc || argc > (optind + 2)) |
61e96248 | 167 | usage(); |
168 | ||
0a85ab61 | 169 | userhost = xstrdup(argv[optind]); |
edeeab1e | 170 | file2 = argv[optind+1]; |
171 | ||
47b53518 | 172 | if ((cp = colon(userhost)) != NULL) { |
edeeab1e | 173 | *cp++ = '\0'; |
174 | file1 = cp; | |
175 | } | |
0426a3b4 | 176 | |
177 | if ((host = strchr(userhost, '@')) == NULL) | |
178 | host = userhost; | |
61e96248 | 179 | else { |
edeeab1e | 180 | *host++ = '\0'; |
0426a3b4 | 181 | if (!userhost[0]) { |
61e96248 | 182 | fprintf(stderr, "Missing username\n"); |
183 | usage(); | |
184 | } | |
8a624ebf | 185 | addargs(&args, "-l%s",userhost); |
61e96248 | 186 | } |
187 | ||
47b53518 | 188 | host = cleanhostname(host); |
0426a3b4 | 189 | if (!*host) { |
61e96248 | 190 | fprintf(stderr, "Missing hostname\n"); |
191 | usage(); | |
192 | } | |
193 | ||
61e96248 | 194 | log_init(argv[0], ll, SYSLOG_FACILITY_USER, 1); |
8a624ebf | 195 | addargs(&args, "-oProtocol %d", sshver); |
196 | ||
197 | /* no subsystem if the server-spec contains a '/' */ | |
184eed6a | 198 | if (sftp_server == NULL || strchr(sftp_server, '/') == NULL) |
8a624ebf | 199 | addargs(&args, "-s"); |
61e96248 | 200 | |
8a624ebf | 201 | addargs(&args, "%s", host); |
202 | addargs(&args, "%s", (sftp_server != NULL ? sftp_server : "sftp")); | |
203 | args.list[0] = ssh_program; | |
61e96248 | 204 | |
0426a3b4 | 205 | fprintf(stderr, "Connecting to %s...\n", host); |
61e96248 | 206 | |
8a624ebf | 207 | connect_to_server(args.list, &in, &out, &sshpid); |
61e96248 | 208 | |
edeeab1e | 209 | interactive_loop(in, out, file1, file2); |
61e96248 | 210 | |
51fb577a | 211 | #if !defined(USE_PIPES) |
212 | shutdown(in, SHUT_RDWR); | |
213 | shutdown(out, SHUT_RDWR); | |
214 | #endif | |
215 | ||
61e96248 | 216 | close(in); |
217 | close(out); | |
a5ec8a3d | 218 | if (infile != stdin) |
219 | fclose(infile); | |
61e96248 | 220 | |
0426a3b4 | 221 | if (waitpid(sshpid, NULL, 0) == -1) |
222 | fatal("Couldn't wait for ssh process: %s", strerror(errno)); | |
61e96248 | 223 | |
224 | exit(0); | |
225 | } |