Mercurial > dropbear
annotate cli-main.c @ 895:5608a5a61c2a
Change port separator to ^ since % is used in ipv6 addresses
author | Matt Johnston <matt@ucc.asn.au> |
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date | Sat, 15 Feb 2014 21:42:35 +0800 |
parents | aa689d140928 |
children | c88dce72f6d2 |
rev | line source |
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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 | 27 #include "includes.h" |
28 #include "dbutil.h" | |
29 #include "runopts.h" | |
30 #include "session.h" | |
858
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31 #include "dbrandom.h" |
795 | 32 #include "crypto_desc.h" |
26 | 33 |
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34 static void cli_dropbear_exit(int exitcode, const char* format, va_list param) ATTRIB_NORETURN; |
33 | 35 static void cli_dropbear_log(int priority, const char* format, va_list param); |
36 | |
542
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37 #ifdef ENABLE_CLI_PROXYCMD |
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38 static void cli_proxy_cmd(int *sock_in, int *sock_out); |
542
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39 #endif |
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40 |
33 | 41 #if defined(DBMULTI_dbclient) || !defined(DROPBEAR_MULTI) |
42 #if defined(DBMULTI_dbclient) && defined(DROPBEAR_MULTI) | |
43 int cli_main(int argc, char ** argv) { | |
44 #else | |
26 | 45 int main(int argc, char ** argv) { |
33 | 46 #endif |
26 | 47 |
479
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48 int sock_in, sock_out; |
26 | 49 char* error = NULL; |
50 | |
51 _dropbear_exit = cli_dropbear_exit; | |
52 _dropbear_log = cli_dropbear_log; | |
53 | |
425 | 54 disallow_core(); |
55 | |
795 | 56 seedrandom(); |
57 crypto_init(); | |
58 | |
26 | 59 cli_getopts(argc, argv); |
60 | |
33 | 61 TRACE(("user='%s' host='%s' port='%s'", cli_opts.username, |
165
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62 cli_opts.remotehost, cli_opts.remoteport)) |
33 | 63 |
109
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64 if (signal(SIGPIPE, SIG_IGN) == SIG_ERR) { |
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65 dropbear_exit("signal() error"); |
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66 } |
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67 |
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68 #ifdef ENABLE_CLI_PROXYCMD |
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69 if (cli_opts.proxycmd) { |
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70 cli_proxy_cmd(&sock_in, &sock_out); |
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71 m_free(cli_opts.proxycmd); |
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72 } else |
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73 #endif |
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74 { |
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75 int sock = connect_remote(cli_opts.remotehost, cli_opts.remoteport, |
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76 0, &error); |
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77 sock_in = sock_out = sock; |
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78 if (cli_opts.wantpty) { |
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79 set_sock_priority(sock, DROPBEAR_PRIO_LOWDELAY); |
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80 } |
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81 } |
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82 |
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83 if (sock_in < 0) { |
26 | 84 dropbear_exit("%s", error); |
85 } | |
86 | |
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87 cli_session(sock_in, sock_out); |
26 | 88 |
89 /* not reached */ | |
90 return -1; | |
91 } | |
33 | 92 #endif /* DBMULTI stuff */ |
93 | |
94 static void cli_dropbear_exit(int exitcode, const char* format, va_list param) { | |
95 | |
96 char fmtbuf[300]; | |
97 | |
98 if (!sessinitdone) { | |
594
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99 snprintf(fmtbuf, sizeof(fmtbuf), "Exited: %s", |
33 | 100 format); |
101 } else { | |
102 snprintf(fmtbuf, sizeof(fmtbuf), | |
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103 "Connection to %s@%s:%s exited: %s", |
33 | 104 cli_opts.username, cli_opts.remotehost, |
105 cli_opts.remoteport, format); | |
106 } | |
107 | |
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108 /* Do the cleanup first, since then the terminal will be reset */ |
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109 session_cleanup(); |
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110 |
33 | 111 _dropbear_log(LOG_INFO, fmtbuf, param); |
112 | |
113 exit(exitcode); | |
114 } | |
115 | |
108
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116 static void cli_dropbear_log(int UNUSED(priority), |
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117 const char* format, va_list param) { |
33 | 118 |
119 char printbuf[1024]; | |
120 | |
121 vsnprintf(printbuf, sizeof(printbuf), format, param); | |
122 | |
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123 fprintf(stderr, "%s: %s\n", cli_opts.progname, printbuf); |
33 | 124 |
125 } | |
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126 |
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127 static void exec_proxy_cmd(void *user_data_cmd) { |
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128 const char *cmd = user_data_cmd; |
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129 char *usershell; |
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130 |
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131 usershell = m_strdup(get_user_shell()); |
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132 run_shell_command(cmd, ses.maxfd, usershell); |
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133 dropbear_exit("Failed to run '%s'\n", cmd); |
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134 } |
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135 |
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136 #ifdef ENABLE_CLI_PROXYCMD |
483
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137 static void cli_proxy_cmd(int *sock_in, int *sock_out) { |
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138 int ret; |
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139 |
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140 fill_passwd(cli_opts.own_user); |
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141 |
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142 ret = spawn_command(exec_proxy_cmd, cli_opts.proxycmd, |
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143 sock_out, sock_in, NULL, NULL); |
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144 if (ret == DROPBEAR_FAILURE) { |
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145 dropbear_exit("Failed running proxy command"); |
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146 *sock_in = *sock_out = -1; |
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147 } |
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148 } |
857 | 149 #endif /* ENABLE_CLI_PROXYCMD */ |