Mercurial > dropbear
annotate cli-runopts.c @ 707:564e7f87ecc3
Fix memory leak when direct TCP connections time out on connection.
Long-standing bug probably stemming from the awkwardly named
delete_channel() versus remove_channel()
author | Matt Johnston <matt@ucc.asn.au> |
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date | Tue, 19 Mar 2013 23:54:32 +0800 |
parents | aadfa8de977d |
children | af4ef98b8591 |
rev | line source |
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1 /* |
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2 * Dropbear - a SSH2 server |
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3 * |
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4 * Copyright (c) 2002,2003 Matt Johnston |
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5 * All rights reserved. |
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6 * |
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7 * Permission is hereby granted, free of charge, to any person obtaining a copy |
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8 * of this software and associated documentation files (the "Software"), to deal |
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9 * in the Software without restriction, including without limitation the rights |
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10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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11 * copies of the Software, and to permit persons to whom the Software is |
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12 * furnished to do so, subject to the following conditions: |
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13 * |
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14 * The above copyright notice and this permission notice shall be included in |
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15 * all copies or substantial portions of the Software. |
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16 * |
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17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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23 * SOFTWARE. */ |
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24 |
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25 #include "includes.h" |
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26 #include "runopts.h" |
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27 #include "signkey.h" |
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28 #include "buffer.h" |
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29 #include "dbutil.h" |
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30 #include "algo.h" |
64 | 31 #include "tcpfwd.h" |
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32 #include "list.h" |
39
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33 |
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34 cli_runopts cli_opts; /* GLOBAL */ |
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35 |
47 | 36 static void printhelp(); |
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37 static void parse_hostname(const char* orighostarg); |
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38 static void parse_multihop_hostname(const char* orighostarg, const char* argv0); |
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39 static void fill_own_user(); |
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40 #ifdef ENABLE_CLI_PUBKEY_AUTH |
47 | 41 static void loadidentityfile(const char* filename); |
42 #endif | |
64 | 43 #ifdef ENABLE_CLI_ANYTCPFWD |
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44 static void addforward(const char* str, m_list *fwdlist); |
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45 #endif |
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46 #ifdef ENABLE_CLI_NETCAT |
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47 static void add_netcat(const char *str); |
64 | 48 #endif |
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49 |
47 | 50 static void printhelp() { |
39
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51 |
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52 fprintf(stderr, "Dropbear client v%s\n" |
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53 #ifdef ENABLE_CLI_MULTIHOP |
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54 "Usage: %s [options] [user@]host[/port][,[user@]host/port],...] [command]\n" |
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55 #else |
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56 "Usage: %s [options] [user@]host[/port] [command]\n" |
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57 #endif |
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58 "Options are:\n" |
47 | 59 "-p <remoteport>\n" |
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60 "-l <username>\n" |
56
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61 "-t Allocate a pty\n" |
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62 "-T Don't allocate a pty\n" |
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63 "-N Don't run a remote command\n" |
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64 "-f Run in background after auth\n" |
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65 "-y Always accept remote host key if unknown\n" |
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66 "-s Request a subsystem (use by external sftp)\n" |
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67 #ifdef ENABLE_CLI_PUBKEY_AUTH |
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68 "-i <identityfile> (multiple allowed)\n" |
47 | 69 #endif |
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70 #ifdef ENABLE_CLI_AGENTFWD |
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71 "-A Enable agent auth forwarding\n" |
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72 #endif |
64 | 73 #ifdef ENABLE_CLI_LOCALTCPFWD |
580 | 74 "-L <[listenaddress:]listenport:remotehost:remoteport> Local port forwarding\n" |
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75 "-g Allow remote hosts to connect to forwarded ports\n" |
62 | 76 #endif |
64 | 77 #ifdef ENABLE_CLI_REMOTETCPFWD |
580 | 78 "-R <[listenaddress:]listenport:remotehost:remoteport> Remote port forwarding\n" |
62 | 79 #endif |
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80 "-W <receive_window_buffer> (default %d, larger may be faster, max 1MB)\n" |
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81 "-K <keepalive> (0 is never, default %d)\n" |
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82 "-I <idle_timeout> (0 is never, default %d)\n" |
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83 #ifdef ENABLE_CLI_NETCAT |
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84 "-B <endhost:endport> Netcat-alike forwarding\n" |
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85 #endif |
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86 #ifdef ENABLE_CLI_PROXYCMD |
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87 "-J <proxy_program> Use program pipe rather than TCP connection\n" |
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88 #endif |
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89 #ifdef ENABLE_USER_ALGO_LIST |
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90 "-c <cipher list> Specify preferred ciphers ('-c help' to list options)\n" |
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91 "-m <MAC list> Specify preferred MACs for packet verification (or '-m help')\n" |
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92 #endif |
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93 #ifdef DEBUG_TRACE |
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94 "-v verbose (compiled with DEBUG_TRACE)\n" |
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95 #endif |
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96 ,DROPBEAR_VERSION, cli_opts.progname, |
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97 DEFAULT_RECV_WINDOW, DEFAULT_KEEPALIVE, DEFAULT_IDLE_TIMEOUT); |
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98 |
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99 } |
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100 |
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101 void cli_getopts(int argc, char ** argv) { |
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102 unsigned int i, j; |
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103 char ** next = 0; |
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104 unsigned int cmdlen; |
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105 #ifdef ENABLE_CLI_PUBKEY_AUTH |
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106 int nextiskey = 0; /* A flag if the next argument is a keyfile */ |
47 | 107 #endif |
64 | 108 #ifdef ENABLE_CLI_LOCALTCPFWD |
62 | 109 int nextislocal = 0; |
110 #endif | |
64 | 111 #ifdef ENABLE_CLI_REMOTETCPFWD |
62 | 112 int nextisremote = 0; |
113 #endif | |
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114 #ifdef ENABLE_CLI_NETCAT |
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115 int nextisnetcat = 0; |
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116 #endif |
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117 char* dummy = NULL; /* Not used for anything real */ |
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118 |
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119 char* recv_window_arg = NULL; |
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120 char* keepalive_arg = NULL; |
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121 char* idle_timeout_arg = NULL; |
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122 char *host_arg = NULL; |
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123 |
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124 /* see printhelp() for options */ |
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125 cli_opts.progname = argv[0]; |
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126 cli_opts.remotehost = NULL; |
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127 cli_opts.remoteport = NULL; |
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128 cli_opts.username = NULL; |
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129 cli_opts.cmd = NULL; |
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130 cli_opts.no_cmd = 0; |
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131 cli_opts.backgrounded = 0; |
47 | 132 cli_opts.wantpty = 9; /* 9 means "it hasn't been touched", gets set later */ |
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133 cli_opts.always_accept_key = 0; |
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134 cli_opts.is_subsystem = 0; |
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135 #ifdef ENABLE_CLI_PUBKEY_AUTH |
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136 cli_opts.privkeys = list_new(); |
47 | 137 #endif |
64 | 138 #ifdef ENABLE_CLI_LOCALTCPFWD |
551
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139 cli_opts.localfwds = list_new(); |
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140 opts.listen_fwd_all = 0; |
62 | 141 #endif |
64 | 142 #ifdef ENABLE_CLI_REMOTETCPFWD |
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143 cli_opts.remotefwds = list_new(); |
62 | 144 #endif |
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145 #ifdef ENABLE_CLI_AGENTFWD |
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146 cli_opts.agent_fwd = 0; |
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147 cli_opts.agent_fd = -1; |
225
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148 cli_opts.agent_keys_loaded = 0; |
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149 #endif |
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150 #ifdef ENABLE_CLI_PROXYCMD |
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151 cli_opts.proxycmd = NULL; |
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152 #endif |
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153 #ifndef DISABLE_ZLIB |
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154 opts.enable_compress = 1; |
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155 #endif |
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156 #ifdef ENABLE_USER_ALGO_LIST |
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157 opts.cipher_list = NULL; |
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158 opts.mac_list = NULL; |
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159 #endif |
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160 /* not yet |
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161 opts.ipv4 = 1; |
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162 opts.ipv6 = 1; |
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163 */ |
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164 opts.recv_window = DEFAULT_RECV_WINDOW; |
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165 |
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166 fill_own_user(); |
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167 |
47 | 168 /* Iterate all the arguments */ |
46
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169 for (i = 1; i < (unsigned int)argc; i++) { |
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170 #ifdef ENABLE_CLI_PUBKEY_AUTH |
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171 if (nextiskey) { |
47 | 172 /* Load a hostkey since the previous argument was "-i" */ |
173 loadidentityfile(argv[i]); | |
174 nextiskey = 0; | |
175 continue; | |
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176 } |
47 | 177 #endif |
64 | 178 #ifdef ENABLE_CLI_REMOTETCPFWD |
179 if (nextisremote) { | |
165
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180 TRACE(("nextisremote true")) |
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181 addforward(argv[i], cli_opts.remotefwds); |
64 | 182 nextisremote = 0; |
183 continue; | |
184 } | |
185 #endif | |
186 #ifdef ENABLE_CLI_LOCALTCPFWD | |
187 if (nextislocal) { | |
165
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188 TRACE(("nextislocal true")) |
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189 addforward(argv[i], cli_opts.localfwds); |
64 | 190 nextislocal = 0; |
191 continue; | |
192 } | |
193 #endif | |
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194 #ifdef ENABLE_CLI_NETCAT |
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195 if (nextisnetcat) { |
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196 TRACE(("nextisnetcat true")) |
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197 add_netcat(argv[i]); |
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198 nextisnetcat = 0; |
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199 continue; |
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200 } |
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201 #endif |
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202 if (next) { |
47 | 203 /* The previous flag set a value to assign */ |
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204 *next = argv[i]; |
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205 if (*next == NULL) { |
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206 dropbear_exit("Invalid null argument"); |
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207 } |
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208 next = NULL; |
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209 continue; |
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210 } |
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211 |
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212 if (argv[i][0] == '-') { |
47 | 213 /* A flag *waves* */ |
46
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214 |
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215 switch (argv[i][1]) { |
418
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216 case 'y': /* always accept the remote hostkey */ |
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217 cli_opts.always_accept_key = 1; |
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218 break; |
47 | 219 case 'p': /* remoteport */ |
46
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220 next = &cli_opts.remoteport; |
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221 break; |
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222 #ifdef ENABLE_CLI_PUBKEY_AUTH |
47 | 223 case 'i': /* an identityfile */ |
134 | 224 /* Keep scp happy when it changes "-i file" to "-ifile" */ |
225 if (strlen(argv[i]) > 2) { | |
226 loadidentityfile(&argv[i][2]); | |
227 } else { | |
228 nextiskey = 1; | |
229 } | |
39
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230 break; |
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231 #endif |
47 | 232 case 't': /* we want a pty */ |
233 cli_opts.wantpty = 1; | |
234 break; | |
235 case 'T': /* don't want a pty */ | |
236 cli_opts.wantpty = 0; | |
237 break; | |
325
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238 case 'N': |
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239 cli_opts.no_cmd = 1; |
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240 break; |
326
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diff
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241 case 'f': |
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242 cli_opts.backgrounded = 1; |
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243 break; |
497
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244 case 's': |
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245 cli_opts.is_subsystem = 1; |
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246 break; |
64 | 247 #ifdef ENABLE_CLI_LOCALTCPFWD |
248 case 'L': | |
249 nextislocal = 1; | |
250 break; | |
258
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* add -g (dbclient) and -a (dropbear) options for allowing non-local
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251 case 'g': |
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252 opts.listen_fwd_all = 1; |
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253 break; |
64 | 254 #endif |
255 #ifdef ENABLE_CLI_REMOTETCPFWD | |
256 case 'R': | |
257 nextisremote = 1; | |
258 break; | |
259 #endif | |
485
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260 #ifdef ENABLE_CLI_NETCAT |
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261 case 'B': |
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262 nextisnetcat = 1; |
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263 break; |
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264 #endif |
479
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265 #ifdef ENABLE_CLI_PROXYCMD |
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266 case 'J': |
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267 next = &cli_opts.proxycmd; |
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268 break; |
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269 #endif |
66
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270 case 'l': |
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|
271 next = &cli_opts.username; |
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272 break; |
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273 case 'h': |
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|
274 printhelp(); |
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|
275 exit(EXIT_SUCCESS); |
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|
276 break; |
442
d82a2a44c684
Add -u option to specify /dev/urandom instead
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|
277 case 'u': |
446
2cd2edfa11ee
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|
278 /* backwards compatibility with old urandom option */ |
442
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|
279 break; |
449
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Add -W <windowsize> argument and document it.
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|
280 case 'W': |
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281 next = &recv_window_arg; |
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282 break; |
454
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|
283 case 'K': |
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|
284 next = &keepalive_arg; |
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285 break; |
513
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|
286 case 'I': |
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|
287 next = &idle_timeout_arg; |
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|
288 break; |
225
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|
289 #ifdef ENABLE_CLI_AGENTFWD |
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|
290 case 'A': |
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|
291 cli_opts.agent_fwd = 1; |
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|
292 break; |
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293 #endif |
682
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294 #ifdef ENABLE_USER_ALGO_LIST |
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295 case 'c': |
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296 next = &opts.cipher_list; |
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297 break; |
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298 case 'm': |
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299 next = &opts.mac_list; |
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300 break; |
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301 #endif |
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302 #ifdef DEBUG_TRACE |
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303 case 'v': |
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304 debug_trace = 1; |
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305 break; |
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306 #endif |
66
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307 case 'F': |
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308 case 'e': |
682
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309 #ifndef ENABLE_USER_ALGO_LIST |
66
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310 case 'c': |
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311 case 'm': |
682
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312 #endif |
66
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313 case 'D': |
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314 #ifndef ENABLE_CLI_REMOTETCPFWD |
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315 case 'R': |
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316 #endif |
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317 #ifndef ENABLE_CLI_LOCALTCPFWD |
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318 case 'L': |
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319 #endif |
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320 case 'o': |
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321 case 'b': |
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322 next = &dummy; |
39
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323 default: |
66
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324 fprintf(stderr, |
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325 "WARNING: Ignoring unknown argument '%s'\n", argv[i]); |
39
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326 break; |
46
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327 } /* Switch */ |
105 | 328 |
329 /* Now we handle args where they might be "-luser" (no spaces)*/ | |
330 if (next && strlen(argv[i]) > 2) { | |
331 *next = &argv[i][2]; | |
332 next = NULL; | |
333 } | |
46
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334 |
47 | 335 continue; /* next argument */ |
336 | |
46
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337 } else { |
165
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338 TRACE(("non-flag arg: '%s'", argv[i])) |
46
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339 |
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340 /* Either the hostname or commands */ |
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341 |
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342 if (host_arg == NULL) { |
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343 host_arg = argv[i]; |
47 | 344 } else { |
46
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345 |
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346 /* this is part of the commands to send - after this we |
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347 * don't parse any more options, and flags are sent as the |
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348 * command */ |
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349 cmdlen = 0; |
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350 for (j = i; j < (unsigned int)argc; j++) { |
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351 cmdlen += strlen(argv[j]) + 1; /* +1 for spaces */ |
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352 } |
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353 /* Allocate the space */ |
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354 cli_opts.cmd = (char*)m_malloc(cmdlen); |
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355 cli_opts.cmd[0] = '\0'; |
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356 |
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357 /* Append all the bits */ |
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358 for (j = i; j < (unsigned int)argc; j++) { |
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359 strlcat(cli_opts.cmd, argv[j], cmdlen); |
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360 strlcat(cli_opts.cmd, " ", cmdlen); |
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361 } |
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362 /* It'll be null-terminated here */ |
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|
363 |
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364 /* We've eaten all the options and flags */ |
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365 break; |
39
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|
366 } |
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|
367 } |
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368 } |
47 | 369 |
487
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370 /* And now a few sanity checks and setup */ |
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371 |
682
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372 #ifdef ENABLE_USER_ALGO_LIST |
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373 parse_ciphers_macs(); |
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374 #endif |
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375 |
544
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376 if (host_arg == NULL) { |
66
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377 printhelp(); |
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378 exit(EXIT_FAILURE); |
47 | 379 } |
380 | |
381 if (cli_opts.remoteport == NULL) { | |
382 cli_opts.remoteport = "22"; | |
383 } | |
384 | |
385 /* If not explicitly specified with -t or -T, we don't want a pty if | |
386 * there's a command, but we do otherwise */ | |
387 if (cli_opts.wantpty == 9) { | |
388 if (cli_opts.cmd == NULL) { | |
389 cli_opts.wantpty = 1; | |
390 } else { | |
391 cli_opts.wantpty = 0; | |
392 } | |
393 } | |
326
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325
diff
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|
394 |
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diff
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|
395 if (cli_opts.backgrounded && cli_opts.cmd == NULL |
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|
396 && cli_opts.no_cmd == 0) { |
594
a98a2138364a
Improve capitalisation for all logged strings
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580
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|
397 dropbear_exit("Command required for -f"); |
326
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diff
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398 } |
449
3e6c536bc023
Add -W <windowsize> argument and document it.
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446
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|
399 |
483
738313e73b1c
- "-J 'nc localhost 22'" kind of works, needs fixing hostkeys, ptys etc.
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479
diff
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|
400 if (recv_window_arg) { |
449
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446
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|
401 opts.recv_window = atol(recv_window_arg); |
483
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|
402 if (opts.recv_window == 0 || opts.recv_window > MAX_RECV_WINDOW) { |
449
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446
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|
403 dropbear_exit("Bad recv window '%s'", recv_window_arg); |
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|
404 } |
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diff
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|
405 } |
454
7e43f5e473b9
- Add -K keepalive flag for dropbear and dbclient
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diff
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|
406 if (keepalive_arg) { |
568
005530560594
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diff
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|
407 unsigned int val; |
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diff
changeset
|
408 if (m_str_to_uint(keepalive_arg, &val) == DROPBEAR_FAILURE) { |
454
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|
409 dropbear_exit("Bad keepalive '%s'", keepalive_arg); |
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diff
changeset
|
410 } |
568
005530560594
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551
diff
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|
411 opts.keepalive_secs = val; |
454
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|
412 } |
487
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|
413 |
513
a3748e54273c
Idle timeout patch from Farrell Aultman. Needs testing, unsure if server
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parents:
509
diff
changeset
|
414 if (idle_timeout_arg) { |
568
005530560594
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551
diff
changeset
|
415 unsigned int val; |
005530560594
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551
diff
changeset
|
416 if (m_str_to_uint(idle_timeout_arg, &val) == DROPBEAR_FAILURE) { |
513
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509
diff
changeset
|
417 dropbear_exit("Bad idle_timeout '%s'", idle_timeout_arg); |
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diff
changeset
|
418 } |
568
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diff
changeset
|
419 opts.idle_timeout_secs = val; |
513
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diff
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|
420 } |
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diff
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|
421 |
487
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422 #ifdef ENABLE_CLI_NETCAT |
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423 if (cli_opts.cmd && cli_opts.netcat_host) { |
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|
424 dropbear_log(LOG_INFO, "Ignoring command '%s' in netcat mode", cli_opts.cmd); |
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425 } |
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|
426 #endif |
544
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|
427 |
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|
428 /* The hostname gets set up last, since |
9e51707cd6f2
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|
429 * in multi-hop mode it will require knowledge |
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430 * of other flags such as -i */ |
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|
431 #ifdef ENABLE_CLI_MULTIHOP |
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|
432 parse_multihop_hostname(host_arg, argv[0]); |
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|
433 #else |
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434 parse_hostname(host_arg); |
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435 #endif |
39
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436 } |
47 | 437 |
68
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|
438 #ifdef ENABLE_CLI_PUBKEY_AUTH |
47 | 439 static void loadidentityfile(const char* filename) { |
440 sign_key *key; | |
441 int keytype; | |
442 | |
443 key = new_sign_key(); | |
444 keytype = DROPBEAR_SIGNKEY_ANY; | |
445 if ( readhostkey(filename, key, &keytype) != DROPBEAR_SUCCESS ) { | |
446 fprintf(stderr, "Failed loading keyfile '%s'\n", filename); | |
447 sign_key_free(key); | |
448 } else { | |
551
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449 key->type = keytype; |
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450 key->source = SIGNKEY_SOURCE_RAW_FILE; |
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451 key->filename = m_strdup(filename); |
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452 list_append(cli_opts.privkeys, key); |
47 | 453 } |
454 } | |
455 #endif | |
456 | |
487
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457 #ifdef ENABLE_CLI_MULTIHOP |
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458 |
544
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459 static char* |
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460 multihop_passthrough_args() { |
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461 char *ret; |
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|
462 int total; |
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463 unsigned int len = 0; |
551
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|
464 m_list_elem *iter; |
544
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465 /* Fill out -i and -W options that make sense for all |
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466 * the intermediate processes */ |
551
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467 for (iter = cli_opts.privkeys->first; iter; iter = iter->next) |
544
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468 { |
551
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469 sign_key * key = (sign_key*)iter->item; |
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470 len += 3 + strlen(key->filename); |
544
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471 } |
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472 len += 20; // space for -W <size>, terminator. |
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473 ret = m_malloc(len); |
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474 total = 0; |
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475 |
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476 if (opts.recv_window != DEFAULT_RECV_WINDOW) |
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477 { |
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478 int written = snprintf(ret+total, len-total, "-W %d", opts.recv_window); |
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479 total += written; |
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480 } |
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481 |
551
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482 for (iter = cli_opts.privkeys->first; iter; iter = iter->next) |
544
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483 { |
551
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484 sign_key * key = (sign_key*)iter->item; |
544
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485 const size_t size = len - total; |
551
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486 int written = snprintf(ret+total, size, "-i %s", key->filename); |
568
005530560594
Rearrange getaddrstring() etc
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parents:
551
diff
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|
487 dropbear_assert((unsigned int)written < size); |
544
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488 total += written; |
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|
489 } |
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|
490 |
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|
491 return ret; |
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|
492 } |
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|
493 |
489
79c657a673ec
- Allow specifying a port with host/port.
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diff
changeset
|
494 /* Sets up 'onion-forwarding' connections. This will spawn |
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|
495 * a separate dbclient process for each hop. |
487
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496 * As an example, if the cmdline is |
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497 * dbclient wrt,madako,canyons |
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498 * then we want to run: |
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499 * dbclient -J "dbclient -B canyons:22 wrt,madako" canyons |
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500 * and then the inner dbclient will recursively run: |
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501 * dbclient -J "dbclient -B madako:22 wrt" madako |
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502 * etc for as many hosts as we want. |
489
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diff
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|
503 * |
79c657a673ec
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diff
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|
504 * Ports for hosts can be specified as host/port. |
487
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|
505 */ |
489
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diff
changeset
|
506 static void parse_multihop_hostname(const char* orighostarg, const char* argv0) { |
487
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|
507 char *userhostarg = NULL; |
544
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|
508 char *hostbuf = NULL; |
574
b6665c1eac43
Remove extraneous semicolon
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parents:
568
diff
changeset
|
509 char *last_hop = NULL; |
487
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|
510 char *remainder = NULL; |
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|
511 |
494
66eac4631d88
- Work around rsync and scp parsing and modifying the user@host argument,
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diff
changeset
|
512 /* both scp and rsync parse a user@host argument |
66eac4631d88
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diff
changeset
|
513 * and turn it into "-l user host". This breaks |
66eac4631d88
- Work around rsync and scp parsing and modifying the user@host argument,
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diff
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|
514 * for our multihop syntax, so we suture it back together. |
66eac4631d88
- Work around rsync and scp parsing and modifying the user@host argument,
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diff
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|
515 * This will break usernames that have both '@' and ',' in them, |
66eac4631d88
- Work around rsync and scp parsing and modifying the user@host argument,
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|
516 * though that should be fairly uncommon. */ |
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|
517 if (cli_opts.username |
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diff
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|
518 && strchr(cli_opts.username, ',') |
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diff
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|
519 && strchr(cli_opts.username, '@')) { |
66eac4631d88
- Work around rsync and scp parsing and modifying the user@host argument,
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diff
changeset
|
520 unsigned int len = strlen(orighostarg) + strlen(cli_opts.username) + 2; |
544
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diff
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|
521 hostbuf = m_malloc(len); |
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diff
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|
522 snprintf(hostbuf, len, "%s@%s", cli_opts.username, orighostarg); |
494
66eac4631d88
- Work around rsync and scp parsing and modifying the user@host argument,
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diff
changeset
|
523 } else { |
544
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541
diff
changeset
|
524 hostbuf = m_strdup(orighostarg); |
494
66eac4631d88
- Work around rsync and scp parsing and modifying the user@host argument,
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parents:
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diff
changeset
|
525 } |
544
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diff
changeset
|
526 userhostarg = hostbuf; |
487
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|
527 |
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|
528 last_hop = strrchr(userhostarg, ','); |
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|
529 if (last_hop) { |
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|
530 if (last_hop == userhostarg) { |
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|
531 dropbear_exit("Bad multi-hop hostnames"); |
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|
532 } |
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|
533 *last_hop = '\0'; |
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|
534 last_hop++; |
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|
535 remainder = userhostarg; |
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changeset
|
536 userhostarg = last_hop; |
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|
537 } |
2e17f82a7330
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diff
changeset
|
538 |
489
79c657a673ec
- Allow specifying a port with host/port.
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parents:
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diff
changeset
|
539 parse_hostname(userhostarg); |
487
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diff
changeset
|
540 |
2e17f82a7330
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diff
changeset
|
541 if (last_hop) { |
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diff
changeset
|
542 /* Set up the proxycmd */ |
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diff
changeset
|
543 unsigned int cmd_len = 0; |
544
9e51707cd6f2
- Make -i and -W pass through multihop arguments
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diff
changeset
|
544 char *passthrough_args = multihop_passthrough_args(); |
487
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diff
changeset
|
545 if (cli_opts.proxycmd) { |
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diff
changeset
|
546 dropbear_exit("-J can't be used with multihop mode"); |
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|
547 } |
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diff
changeset
|
548 if (cli_opts.remoteport == NULL) { |
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changeset
|
549 cli_opts.remoteport = "22"; |
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diff
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|
550 } |
544
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diff
changeset
|
551 cmd_len = strlen(argv0) + strlen(remainder) |
487
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changeset
|
552 + strlen(cli_opts.remotehost) + strlen(cli_opts.remoteport) |
544
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diff
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|
553 + strlen(passthrough_args) |
9e51707cd6f2
- Make -i and -W pass through multihop arguments
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diff
changeset
|
554 + 30; |
487
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diff
changeset
|
555 cli_opts.proxycmd = m_malloc(cmd_len); |
544
9e51707cd6f2
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diff
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|
556 snprintf(cli_opts.proxycmd, cmd_len, "%s -B %s:%s %s %s", |
9e51707cd6f2
- Make -i and -W pass through multihop arguments
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|
557 argv0, cli_opts.remotehost, cli_opts.remoteport, |
9e51707cd6f2
- Make -i and -W pass through multihop arguments
Matt Johnston <matt@ucc.asn.au>
parents:
541
diff
changeset
|
558 passthrough_args, remainder); |
575
f9b5dc0cba61
- Disable compression for non-final multihops
Matt Johnston <matt@ucc.asn.au>
parents:
574
diff
changeset
|
559 #ifndef DISABLE_ZLIB |
f9b5dc0cba61
- Disable compression for non-final multihops
Matt Johnston <matt@ucc.asn.au>
parents:
574
diff
changeset
|
560 /* The stream will be incompressible since it's encrypted. */ |
f9b5dc0cba61
- Disable compression for non-final multihops
Matt Johnston <matt@ucc.asn.au>
parents:
574
diff
changeset
|
561 opts.enable_compress = 0; |
f9b5dc0cba61
- Disable compression for non-final multihops
Matt Johnston <matt@ucc.asn.au>
parents:
574
diff
changeset
|
562 #endif |
544
9e51707cd6f2
- Make -i and -W pass through multihop arguments
Matt Johnston <matt@ucc.asn.au>
parents:
541
diff
changeset
|
563 m_free(passthrough_args); |
487
2e17f82a7330
Add multihop 'onion-forwarding' mode. Needs refinement, works.
Matt Johnston <matt@ucc.asn.au>
parents:
486
diff
changeset
|
564 } |
544
9e51707cd6f2
- Make -i and -W pass through multihop arguments
Matt Johnston <matt@ucc.asn.au>
parents:
541
diff
changeset
|
565 m_free(hostbuf); |
487
2e17f82a7330
Add multihop 'onion-forwarding' mode. Needs refinement, works.
Matt Johnston <matt@ucc.asn.au>
parents:
486
diff
changeset
|
566 } |
489
79c657a673ec
- Allow specifying a port with host/port.
Matt Johnston <matt@ucc.asn.au>
parents:
487
diff
changeset
|
567 #endif /* !ENABLE_CLI_MULTIHOP */ |
47 | 568 |
489
79c657a673ec
- Allow specifying a port with host/port.
Matt Johnston <matt@ucc.asn.au>
parents:
487
diff
changeset
|
569 /* Parses a [user@]hostname[/port] argument. */ |
79c657a673ec
- Allow specifying a port with host/port.
Matt Johnston <matt@ucc.asn.au>
parents:
487
diff
changeset
|
570 static void parse_hostname(const char* orighostarg) { |
64 | 571 char *userhostarg = NULL; |
489
79c657a673ec
- Allow specifying a port with host/port.
Matt Johnston <matt@ucc.asn.au>
parents:
487
diff
changeset
|
572 char *port = NULL; |
64 | 573 |
574 userhostarg = m_strdup(orighostarg); | |
47 | 575 |
576 cli_opts.remotehost = strchr(userhostarg, '@'); | |
577 if (cli_opts.remotehost == NULL) { | |
578 /* no username portion, the cli-auth.c code can figure the | |
579 * local user's name */ | |
580 cli_opts.remotehost = userhostarg; | |
581 } else { | |
582 cli_opts.remotehost[0] = '\0'; /* Split the user/host */ | |
583 cli_opts.remotehost++; | |
584 cli_opts.username = userhostarg; | |
585 } | |
586 | |
587 if (cli_opts.username == NULL) { | |
483
738313e73b1c
- "-J 'nc localhost 22'" kind of works, needs fixing hostkeys, ptys etc.
Matt Johnston <matt@ucc.asn.au>
parents:
479
diff
changeset
|
588 cli_opts.username = m_strdup(cli_opts.own_user); |
47 | 589 } |
590 | |
489
79c657a673ec
- Allow specifying a port with host/port.
Matt Johnston <matt@ucc.asn.au>
parents:
487
diff
changeset
|
591 port = strchr(cli_opts.remotehost, '/'); |
79c657a673ec
- Allow specifying a port with host/port.
Matt Johnston <matt@ucc.asn.au>
parents:
487
diff
changeset
|
592 if (port) { |
79c657a673ec
- Allow specifying a port with host/port.
Matt Johnston <matt@ucc.asn.au>
parents:
487
diff
changeset
|
593 *port = '\0'; |
79c657a673ec
- Allow specifying a port with host/port.
Matt Johnston <matt@ucc.asn.au>
parents:
487
diff
changeset
|
594 cli_opts.remoteport = port+1; |
79c657a673ec
- Allow specifying a port with host/port.
Matt Johnston <matt@ucc.asn.au>
parents:
487
diff
changeset
|
595 } |
79c657a673ec
- Allow specifying a port with host/port.
Matt Johnston <matt@ucc.asn.au>
parents:
487
diff
changeset
|
596 |
47 | 597 if (cli_opts.remotehost[0] == '\0') { |
598 dropbear_exit("Bad hostname"); | |
599 } | |
600 } | |
64 | 601 |
485
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
602 #ifdef ENABLE_CLI_NETCAT |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
603 static void add_netcat(const char* origstr) { |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
604 char *portstr = NULL; |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
605 |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
606 char * str = m_strdup(origstr); |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
607 |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
608 portstr = strchr(str, ':'); |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
609 if (portstr == NULL) { |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
610 TRACE(("No netcat port")) |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
611 goto fail; |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
612 } |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
613 *portstr = '\0'; |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
614 portstr++; |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
615 |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
616 if (strchr(portstr, ':')) { |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
617 TRACE(("Multiple netcat colons")) |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
618 goto fail; |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
619 } |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
620 |
492
b956d6151600
Replace calls to strtoul() with a helper m_str_to_uint()
Matt Johnston <matt@ucc.asn.au>
parents:
489
diff
changeset
|
621 if (m_str_to_uint(portstr, &cli_opts.netcat_port) == DROPBEAR_FAILURE) { |
485
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
622 TRACE(("bad netcat port")) |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
623 goto fail; |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
624 } |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
625 |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
626 if (cli_opts.netcat_port > 65535) { |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
627 TRACE(("too large netcat port")) |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
628 goto fail; |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
629 } |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
630 |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
631 cli_opts.netcat_host = str; |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
632 return; |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
633 |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
634 fail: |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
635 dropbear_exit("Bad netcat endpoint '%s'", origstr); |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
636 } |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
637 #endif |
12d845ab7b5f
Rework netcat-alike to be a proper mode, with -B argument.
Matt Johnston <matt@ucc.asn.au>
parents:
459
diff
changeset
|
638 |
483
738313e73b1c
- "-J 'nc localhost 22'" kind of works, needs fixing hostkeys, ptys etc.
Matt Johnston <matt@ucc.asn.au>
parents:
479
diff
changeset
|
639 static void fill_own_user() { |
738313e73b1c
- "-J 'nc localhost 22'" kind of works, needs fixing hostkeys, ptys etc.
Matt Johnston <matt@ucc.asn.au>
parents:
479
diff
changeset
|
640 uid_t uid; |
738313e73b1c
- "-J 'nc localhost 22'" kind of works, needs fixing hostkeys, ptys etc.
Matt Johnston <matt@ucc.asn.au>
parents:
479
diff
changeset
|
641 struct passwd *pw = NULL; |
738313e73b1c
- "-J 'nc localhost 22'" kind of works, needs fixing hostkeys, ptys etc.
Matt Johnston <matt@ucc.asn.au>
parents:
479
diff
changeset
|
642 |
738313e73b1c
- "-J 'nc localhost 22'" kind of works, needs fixing hostkeys, ptys etc.
Matt Johnston <matt@ucc.asn.au>
parents:
479
diff
changeset
|
643 uid = getuid(); |
738313e73b1c
- "-J 'nc localhost 22'" kind of works, needs fixing hostkeys, ptys etc.
Matt Johnston <matt@ucc.asn.au>
parents:
479
diff
changeset
|
644 |
738313e73b1c
- "-J 'nc localhost 22'" kind of works, needs fixing hostkeys, ptys etc.
Matt Johnston <matt@ucc.asn.au>
parents:
479
diff
changeset
|
645 pw = getpwuid(uid); |
738313e73b1c
- "-J 'nc localhost 22'" kind of works, needs fixing hostkeys, ptys etc.
Matt Johnston <matt@ucc.asn.au>
parents:
479
diff
changeset
|
646 if (pw == NULL || pw->pw_name == NULL) { |
738313e73b1c
- "-J 'nc localhost 22'" kind of works, needs fixing hostkeys, ptys etc.
Matt Johnston <matt@ucc.asn.au>
parents:
479
diff
changeset
|
647 dropbear_exit("Unknown own user"); |
738313e73b1c
- "-J 'nc localhost 22'" kind of works, needs fixing hostkeys, ptys etc.
Matt Johnston <matt@ucc.asn.au>
parents:
479
diff
changeset
|
648 } |
738313e73b1c
- "-J 'nc localhost 22'" kind of works, needs fixing hostkeys, ptys etc.
Matt Johnston <matt@ucc.asn.au>
parents:
479
diff
changeset
|
649 |
738313e73b1c
- "-J 'nc localhost 22'" kind of works, needs fixing hostkeys, ptys etc.
Matt Johnston <matt@ucc.asn.au>
parents:
479
diff
changeset
|
650 cli_opts.own_user = m_strdup(pw->pw_name); |
738313e73b1c
- "-J 'nc localhost 22'" kind of works, needs fixing hostkeys, ptys etc.
Matt Johnston <matt@ucc.asn.au>
parents:
479
diff
changeset
|
651 } |
738313e73b1c
- "-J 'nc localhost 22'" kind of works, needs fixing hostkeys, ptys etc.
Matt Johnston <matt@ucc.asn.au>
parents:
479
diff
changeset
|
652 |
64 | 653 #ifdef ENABLE_CLI_ANYTCPFWD |
578
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
654 /* Turn a "[listenaddr:]listenport:remoteaddr:remoteport" string into into a forwarding |
64 | 655 * set, and add it to the forwarding list */ |
551
c3f2ec71e3d4
New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList
Matt Johnston <matt@ucc.asn.au>
parents:
546
diff
changeset
|
656 static void addforward(const char* origstr, m_list *fwdlist) { |
64 | 657 |
578
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
658 char *part1 = NULL, *part2 = NULL, *part3 = NULL, *part4 = NULL; |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
659 char * listenaddr = NULL; |
64 | 660 char * listenport = NULL; |
578
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
661 char * connectaddr = NULL; |
64 | 662 char * connectport = NULL; |
551
c3f2ec71e3d4
New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList
Matt Johnston <matt@ucc.asn.au>
parents:
546
diff
changeset
|
663 struct TCPFwdEntry* newfwd = NULL; |
64 | 664 char * str = NULL; |
665 | |
165
0cfba3034be5
Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
Matt Johnston <matt@ucc.asn.au>
parents:
134
diff
changeset
|
666 TRACE(("enter addforward")) |
64 | 667 |
411
253958302381
Revert bogus fix, make a note that the var is meant to 'leak'
Matt Johnston <matt@ucc.asn.au>
parents:
407
diff
changeset
|
668 /* We need to split the original argument up. This var |
253958302381
Revert bogus fix, make a note that the var is meant to 'leak'
Matt Johnston <matt@ucc.asn.au>
parents:
407
diff
changeset
|
669 is never free()d. */ |
64 | 670 str = m_strdup(origstr); |
671 | |
578
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
672 part1 = str; |
64 | 673 |
578
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
674 part2 = strchr(str, ':'); |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
675 if (part2 == NULL) { |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
676 TRACE(("part2 == NULL")) |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
677 goto fail; |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
678 } |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
679 *part2 = '\0'; |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
680 part2++; |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
681 |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
682 part3 = strchr(part2, ':'); |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
683 if (part3 == NULL) { |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
684 TRACE(("part3 == NULL")) |
64 | 685 goto fail; |
686 } | |
578
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
687 *part3 = '\0'; |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
688 part3++; |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
689 |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
690 part4 = strchr(part3, ':'); |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
691 if (part4) { |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
692 *part4 = '\0'; |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
693 part4++; |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
694 } |
64 | 695 |
578
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
696 if (part4) { |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
697 listenaddr = part1; |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
698 listenport = part2; |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
699 connectaddr = part3; |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
700 connectport = part4; |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
701 } else { |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
702 listenaddr = NULL; |
44f486b72427
- tcpfwd bindaddr support against trunk. needs merging.
Matt Johnston <matt@ucc.asn.au>
parents:
575
diff
changeset
|
703 listenport = part1; |
44f486b72427
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704 connectaddr = part2; |
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705 connectport = part3; |
64 | 706 } |
578
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707 |
551
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708 newfwd = m_malloc(sizeof(struct TCPFwdEntry)); |
64 | 709 |
710 /* Now we check the ports - note that the port ints are unsigned, | |
711 * the check later only checks for >= MAX_PORT */ | |
492
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712 if (m_str_to_uint(listenport, &newfwd->listenport) == DROPBEAR_FAILURE) { |
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713 TRACE(("bad listenport strtoul")) |
64 | 714 goto fail; |
715 } | |
716 | |
492
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717 if (m_str_to_uint(connectport, &newfwd->connectport) == DROPBEAR_FAILURE) { |
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718 TRACE(("bad connectport strtoul")) |
64 | 719 goto fail; |
720 } | |
721 | |
578
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722 newfwd->listenaddr = listenaddr; |
64 | 723 newfwd->connectaddr = connectaddr; |
724 | |
725 if (newfwd->listenport > 65535) { | |
165
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Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
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726 TRACE(("listenport > 65535")) |
64 | 727 goto badport; |
728 } | |
729 | |
730 if (newfwd->connectport > 65535) { | |
165
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Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
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731 TRACE(("connectport > 65535")) |
64 | 732 goto badport; |
733 } | |
734 | |
505
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735 newfwd->have_reply = 0; |
551
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New standard linked list to use, rather than adhoc SignKeyList or TCPFwdList
Matt Johnston <matt@ucc.asn.au>
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736 list_append(fwdlist, newfwd); |
64 | 737 |
165
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738 TRACE(("leave addforward: done")) |
64 | 739 return; |
740 | |
741 fail: | |
742 dropbear_exit("Bad TCP forward '%s'", origstr); | |
743 | |
744 badport: | |
745 dropbear_exit("Bad TCP port in '%s'", origstr); | |
746 } | |
747 #endif |