Annotation of src/usr.bin/ssh/sftp.c, Revision 1.21.2.4
1.1 djm 1: /*
1.21.2.1 jason 2: * Copyright (c) 2001,2002 Damien Miller. All rights reserved.
1.1 djm 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:
1.21.2.4! miod 27: RCSID("$OpenBSD: sftp.c,v 1.31 2002/07/25 01:16:59 mouring Exp $");
1.1 djm 28:
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"
1.16 mouring 35: #include "misc.h"
1.1 djm 36:
37: #include "sftp.h"
38: #include "sftp-common.h"
39: #include "sftp-client.h"
40: #include "sftp-int.h"
1.15 mouring 41:
1.10 deraadt 42: FILE* infile;
1.21.2.1 jason 43: size_t copy_buffer_len = 32768;
44: size_t num_requests = 16;
1.7 markus 45:
1.18 itojun 46: static void
1.21.2.1 jason 47: connect_to_server(char *path, char **args, int *in, int *out, pid_t *sshpid)
1.1 djm 48: {
49: int c_in, c_out;
1.21.2.3 miod 50:
1.1 djm 51: #ifdef USE_PIPES
52: int pin[2], pout[2];
1.21.2.3 miod 53:
1.1 djm 54: if ((pipe(pin) == -1) || (pipe(pout) == -1))
55: fatal("pipe: %s", strerror(errno));
56: *in = pin[0];
57: *out = pout[1];
58: c_in = pout[0];
59: c_out = pin[1];
60: #else /* USE_PIPES */
61: int inout[2];
1.21.2.3 miod 62:
1.1 djm 63: if (socketpair(AF_UNIX, SOCK_STREAM, 0, inout) == -1)
64: fatal("socketpair: %s", strerror(errno));
65: *in = *out = inout[0];
66: c_in = c_out = inout[1];
67: #endif /* USE_PIPES */
68:
69: if ((*sshpid = fork()) == -1)
70: fatal("fork: %s", strerror(errno));
71: else if (*sshpid == 0) {
72: if ((dup2(c_in, STDIN_FILENO) == -1) ||
73: (dup2(c_out, STDOUT_FILENO) == -1)) {
74: fprintf(stderr, "dup2: %s\n", strerror(errno));
75: exit(1);
76: }
77: close(*in);
78: close(*out);
79: close(c_in);
80: close(c_out);
1.21.2.1 jason 81: execv(path, args);
82: fprintf(stderr, "exec: %s: %s\n", path, strerror(errno));
1.1 djm 83: exit(1);
84: }
85:
86: close(c_in);
87: close(c_out);
88: }
89:
1.18 itojun 90: static void
1.1 djm 91: usage(void)
92: {
1.21.2.1 jason 93: extern char *__progname;
1.21.2.2 miod 94:
1.19 stevesk 95: fprintf(stderr,
1.21.2.1 jason 96: "usage: %s [-vC1] [-b batchfile] [-o option] [-s subsystem|path] [-B buffer_size]\n"
97: " [-F config] [-P direct server path] [-S program]\n"
98: " [user@]host[:file [file]]\n", __progname);
1.1 djm 99: exit(1);
100: }
101:
1.2 stevesk 102: int
1.1 djm 103: main(int argc, char **argv)
104: {
1.17 mouring 105: int in, out, ch;
1.1 djm 106: pid_t sshpid;
1.14 mouring 107: char *host, *userhost, *cp, *file2;
1.17 mouring 108: int debug_level = 0, sshver = 2;
109: char *file1 = NULL, *sftp_server = NULL;
1.21.2.1 jason 110: char *ssh_program = _PATH_SSH_PROGRAM, *sftp_direct = NULL;
1.17 mouring 111: LogLevel ll = SYSLOG_LEVEL_INFO;
112: arglist args;
1.3 djm 113: extern int optind;
114: extern char *optarg;
1.1 djm 115:
1.17 mouring 116: args.list = NULL;
1.21.2.1 jason 117: addargs(&args, "ssh"); /* overwritten with ssh_program */
1.17 mouring 118: addargs(&args, "-oForwardX11 no");
119: addargs(&args, "-oForwardAgent no");
1.21 stevesk 120: addargs(&args, "-oClearAllForwardings yes");
1.17 mouring 121: ll = SYSLOG_LEVEL_INFO;
1.10 deraadt 122: infile = stdin; /* Read from STDIN unless changed by -b */
1.3 djm 123:
1.21.2.1 jason 124: while ((ch = getopt(argc, argv, "1hvCo:s:S:b:B:F:P:R:")) != -1) {
1.3 djm 125: switch (ch) {
126: case 'C':
1.17 mouring 127: addargs(&args, "-C");
1.3 djm 128: break;
129: case 'v':
1.17 mouring 130: if (debug_level < 3) {
131: addargs(&args, "-v");
132: ll = SYSLOG_LEVEL_DEBUG1 + debug_level;
133: }
134: debug_level++;
1.3 djm 135: break;
1.19 stevesk 136: case 'F':
1.3 djm 137: case 'o':
1.19 stevesk 138: addargs(&args, "-%c%s", ch, optarg);
1.7 markus 139: break;
140: case '1':
1.17 mouring 141: sshver = 1;
1.7 markus 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;
1.3 djm 150: break;
1.10 deraadt 151: case 'b':
152: if (infile == stdin) {
153: infile = fopen(optarg, "r");
1.12 markus 154: if (infile == NULL)
1.10 deraadt 155: fatal("%s (%s).", strerror(errno), optarg);
1.12 markus 156: } else
1.10 deraadt 157: fatal("Filename already specified.");
158: break;
1.21.2.1 jason 159: case 'P':
160: sftp_direct = optarg;
161: break;
162: case 'B':
163: copy_buffer_len = strtol(optarg, &cp, 10);
164: if (copy_buffer_len == 0 || *cp != '\0')
165: fatal("Invalid buffer size \"%s\"", optarg);
166: break;
167: case 'R':
168: num_requests = strtol(optarg, &cp, 10);
169: if (num_requests == 0 || *cp != '\0')
1.21.2.2 miod 170: fatal("Invalid number of requests \"%s\"",
1.21.2.1 jason 171: optarg);
172: break;
1.3 djm 173: case 'h':
174: default:
1.1 djm 175: usage();
176: }
177: }
178:
1.21.2.2 miod 179: log_init(argv[0], ll, SYSLOG_FACILITY_USER, 1);
180:
1.21.2.1 jason 181: if (sftp_direct == NULL) {
182: if (optind == argc || argc > (optind + 2))
1.1 djm 183: usage();
184:
1.21.2.1 jason 185: userhost = xstrdup(argv[optind]);
186: file2 = argv[optind+1];
1.1 djm 187:
1.21.2.1 jason 188: if ((cp = colon(userhost)) != NULL) {
189: *cp++ = '\0';
190: file1 = cp;
191: }
1.1 djm 192:
1.21.2.1 jason 193: if ((host = strchr(userhost, '@')) == NULL)
194: host = userhost;
195: else {
196: *host++ = '\0';
197: if (!userhost[0]) {
198: fprintf(stderr, "Missing username\n");
199: usage();
200: }
201: addargs(&args, "-l%s",userhost);
202: }
1.1 djm 203:
1.21.2.1 jason 204: host = cleanhostname(host);
205: if (!*host) {
206: fprintf(stderr, "Missing hostname\n");
207: usage();
208: }
1.1 djm 209:
1.21.2.1 jason 210: addargs(&args, "-oProtocol %d", sshver);
1.1 djm 211:
1.21.2.1 jason 212: /* no subsystem if the server-spec contains a '/' */
213: if (sftp_server == NULL || strchr(sftp_server, '/') == NULL)
214: addargs(&args, "-s");
215:
216: addargs(&args, "%s", host);
1.21.2.2 miod 217: addargs(&args, "%s", (sftp_server != NULL ?
1.21.2.1 jason 218: sftp_server : "sftp"));
219: args.list[0] = ssh_program;
220:
221: fprintf(stderr, "Connecting to %s...\n", host);
1.21.2.2 miod 222: connect_to_server(ssh_program, args.list, &in, &out,
1.21.2.1 jason 223: &sshpid);
224: } else {
225: args.list = NULL;
226: addargs(&args, "sftp-server");
227:
228: fprintf(stderr, "Attaching to %s...\n", sftp_direct);
1.21.2.2 miod 229: connect_to_server(sftp_direct, args.list, &in, &out,
1.21.2.1 jason 230: &sshpid);
231: }
1.1 djm 232:
1.14 mouring 233: interactive_loop(in, out, file1, file2);
1.1 djm 234:
235: close(in);
236: close(out);
1.10 deraadt 237: if (infile != stdin)
238: fclose(infile);
1.1 djm 239:
1.21.2.2 miod 240: while (waitpid(sshpid, NULL, 0) == -1)
241: if (errno != EINTR)
242: fatal("Couldn't wait for ssh process: %s",
243: strerror(errno));
1.1 djm 244:
245: exit(0);
246: }
![[BACK]](/icons/back.gif){kind=icon}
Return to sftp.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / ssh