Mercurial > dropbear
annotate cli-main.c @ 494:66eac4631d88
- Work around rsync and scp parsing and modifying the user@host argument,
which break's dbclient's multihop syntax
| author | Matt Johnston <matt@ucc.asn.au> |
|---|---|
| date | Mon, 22 Sep 2008 15:47:35 +0000 |
| parents | effb4a25b1ae |
| children | c9128994a2d6 |
| rev | line source |
|---|---|
|
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" | |
| 26 | 31 |
| 33 | 32 static void cli_dropbear_exit(int exitcode, const char* format, va_list param); |
| 33 static void cli_dropbear_log(int priority, const char* format, va_list param); | |
| 34 | |
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35 static void cli_proxy_cmd(int *sock_in, int *sock_out); |
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36 |
| 33 | 37 #if defined(DBMULTI_dbclient) || !defined(DROPBEAR_MULTI) |
| 38 #if defined(DBMULTI_dbclient) && defined(DROPBEAR_MULTI) | |
| 39 int cli_main(int argc, char ** argv) { | |
| 40 #else | |
| 26 | 41 int main(int argc, char ** argv) { |
| 33 | 42 #endif |
| 26 | 43 |
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44 int sock_in, sock_out; |
| 26 | 45 char* error = NULL; |
| 46 char* hostandport; | |
| 47 int len; | |
| 48 | |
| 49 _dropbear_exit = cli_dropbear_exit; | |
| 50 _dropbear_log = cli_dropbear_log; | |
| 51 | |
| 425 | 52 disallow_core(); |
| 53 | |
| 26 | 54 cli_getopts(argc, argv); |
| 55 | |
| 33 | 56 TRACE(("user='%s' host='%s' port='%s'", cli_opts.username, |
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57 cli_opts.remotehost, cli_opts.remoteport)) |
| 33 | 58 |
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59 if (signal(SIGPIPE, SIG_IGN) == SIG_ERR) { |
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60 dropbear_exit("signal() error"); |
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61 } |
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62 |
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63 #ifdef ENABLE_CLI_PROXYCMD |
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64 if (cli_opts.proxycmd) { |
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65 cli_proxy_cmd(&sock_in, &sock_out); |
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66 } else |
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67 #endif |
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68 { |
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69 int sock = connect_remote(cli_opts.remotehost, cli_opts.remoteport, |
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70 0, &error); |
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71 sock_in = sock_out = sock; |
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72 } |
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73 |
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74 if (sock_in < 0) { |
| 26 | 75 dropbear_exit("%s", error); |
| 76 } | |
| 77 | |
| 78 /* Set up the host:port log */ | |
| 79 len = strlen(cli_opts.remotehost); | |
| 80 len += 10; /* 16 bit port and leeway*/ | |
| 81 hostandport = (char*)m_malloc(len); | |
| 33 | 82 snprintf(hostandport, len, "%s:%s", |
| 26 | 83 cli_opts.remotehost, cli_opts.remoteport); |
| 84 | |
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85 cli_session(sock_in, sock_out, hostandport); |
| 26 | 86 |
| 87 /* not reached */ | |
| 88 return -1; | |
| 89 } | |
| 33 | 90 #endif /* DBMULTI stuff */ |
| 91 | |
| 92 static void cli_dropbear_exit(int exitcode, const char* format, va_list param) { | |
| 93 | |
| 94 char fmtbuf[300]; | |
| 95 | |
| 96 if (!sessinitdone) { | |
| 97 snprintf(fmtbuf, sizeof(fmtbuf), "exited: %s", | |
| 98 format); | |
| 99 } else { | |
| 100 snprintf(fmtbuf, sizeof(fmtbuf), | |
| 101 "connection to %s@%s:%s exited: %s", | |
| 102 cli_opts.username, cli_opts.remotehost, | |
| 103 cli_opts.remoteport, format); | |
| 104 } | |
| 105 | |
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106 /* Do the cleanup first, since then the terminal will be reset */ |
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107 cli_session_cleanup(); |
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108 common_session_cleanup(); |
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109 |
| 33 | 110 _dropbear_log(LOG_INFO, fmtbuf, param); |
| 111 | |
| 112 exit(exitcode); | |
| 113 } | |
| 114 | |
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108
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115 static void cli_dropbear_log(int UNUSED(priority), |
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116 const char* format, va_list param) { |
| 33 | 117 |
| 118 char printbuf[1024]; | |
| 119 | |
| 120 vsnprintf(printbuf, sizeof(printbuf), format, param); | |
| 121 | |
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122 fprintf(stderr, "%s: %s\n", cli_opts.progname, printbuf); |
| 33 | 123 |
| 124 } | |
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125 |
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126 static void exec_proxy_cmd(void *user_data_cmd) { |
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127 const char *cmd = user_data_cmd; |
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128 char *usershell; |
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129 |
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130 usershell = m_strdup(get_user_shell()); |
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131 run_shell_command(cmd, ses.maxfd, usershell); |
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132 dropbear_exit("Failed to run '%s'\n", cmd); |
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133 } |
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134 |
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135 static void cli_proxy_cmd(int *sock_in, int *sock_out) { |
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136 int ret; |
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137 |
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138 fill_passwd(cli_opts.own_user); |
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139 |
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140 ret = spawn_command(exec_proxy_cmd, cli_opts.proxycmd, |
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141 sock_out, sock_in, NULL, NULL); |
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142 if (ret == DROPBEAR_FAILURE) { |
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143 dropbear_exit("Failed running proxy command"); |
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144 *sock_in = *sock_out = -1; |
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145 } |
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146 } |