annotate cli-main.c @ 479:e3db1f7a2e43

- Split main socket var into ses.sock_in/ses.sock_out in preparation for -J proxy_cmd option (and some prelim options for that)
author Matt Johnston <matt@ucc.asn.au>
date Mon, 15 Sep 2008 12:51:50 +0000
parents 1afa503e33f5
children 738313e73b1c
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74
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1 /*
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2 * Dropbear - a SSH2 server
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3 * SSH client implementation
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4 *
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5 * Copyright (c) 2002,2003 Matt Johnston
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6 * Copyright (c) 2004 by Mihnea Stoenescu
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7 * All rights reserved.
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8 *
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9 * Permission is hereby granted, free of charge, to any person obtaining a copy
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10 * of this software and associated documentation files (the "Software"), to deal
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11 * in the Software without restriction, including without limitation the rights
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12 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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13 * copies of the Software, and to permit persons to whom the Software is
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14 * furnished to do so, subject to the following conditions:
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15 *
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16 * The above copyright notice and this permission notice shall be included in
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17 * all copies or substantial portions of the Software.
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18 *
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19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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22 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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23 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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24 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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25 * SOFTWARE. */
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26
33
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27 #include "includes.h"
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28 #include "dbutil.h"
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29 #include "runopts.h"
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30 #include "session.h"
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31
33
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32 static void cli_dropbear_exit(int exitcode, const char* format, va_list param);
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33 static void cli_dropbear_log(int priority, const char* format, va_list param);
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34
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35 #if defined(DBMULTI_dbclient) || !defined(DROPBEAR_MULTI)
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36 #if defined(DBMULTI_dbclient) && defined(DROPBEAR_MULTI)
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37 int cli_main(int argc, char ** argv) {
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38 #else
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39 int main(int argc, char ** argv) {
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40 #endif
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41
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42 int sock_in, sock_out;
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43 char* error = NULL;
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44 char* hostandport;
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45 int len;
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46
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47 _dropbear_exit = cli_dropbear_exit;
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48 _dropbear_log = cli_dropbear_log;
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49
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50 disallow_core();
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51
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52 cli_getopts(argc, argv);
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53
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54 TRACE(("user='%s' host='%s' port='%s'", cli_opts.username,
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55 cli_opts.remotehost, cli_opts.remoteport))
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56
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57 if (signal(SIGPIPE, SIG_IGN) == SIG_ERR) {
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58 dropbear_exit("signal() error");
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59 }
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60
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61 #ifdef CLI_ENABLE_PROXYCMD
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62 if (cli_runopts.proxycmd) {
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63
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64 } else
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65 #endif
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66 {
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67 int sock = connect_remote(cli_opts.remotehost, cli_opts.remoteport,
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68 0, &error);
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69 sock_in = sock_out = sock;
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70 }
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71
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72 if (sock_in < 0) {
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73 dropbear_exit("%s", error);
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74 }
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75
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76 /* Set up the host:port log */
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77 len = strlen(cli_opts.remotehost);
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78 len += 10; /* 16 bit port and leeway*/
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79 hostandport = (char*)m_malloc(len);
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80 snprintf(hostandport, len, "%s:%s",
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81 cli_opts.remotehost, cli_opts.remoteport);
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82
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83 cli_session(sock_in, sock_out, hostandport);
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84
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85 /* not reached */
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86 return -1;
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87 }
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88 #endif /* DBMULTI stuff */
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89
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90 static void cli_dropbear_exit(int exitcode, const char* format, va_list param) {
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91
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92 char fmtbuf[300];
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93
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94 if (!sessinitdone) {
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95 snprintf(fmtbuf, sizeof(fmtbuf), "exited: %s",
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96 format);
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97 } else {
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98 snprintf(fmtbuf, sizeof(fmtbuf),
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99 "connection to %[email protected]%s:%s exited: %s",
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100 cli_opts.username, cli_opts.remotehost,
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101 cli_opts.remoteport, format);
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102 }
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103
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104 /* Do the cleanup first, since then the terminal will be reset */
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105 cli_session_cleanup();
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106 common_session_cleanup();
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107
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108 _dropbear_log(LOG_INFO, fmtbuf, param);
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109
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110 exit(exitcode);
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111 }
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112
108
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113 static void cli_dropbear_log(int UNUSED(priority),
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114 const char* format, va_list param) {
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115
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116 char printbuf[1024];
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117
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118 vsnprintf(printbuf, sizeof(printbuf), format, param);
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119
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120 fprintf(stderr, "%s: %s\n", cli_opts.progname, printbuf);
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121
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122 }