annotate cli-runopts.c @ 40:b4874d772210

- Added terminal mode handling etc for the client, and window change - Refactored the terminal-mode handling for the server - Improved session closing for the client
author Matt Johnston <matt@ucc.asn.au>
date Sun, 01 Aug 2004 08:54:01 +0000
parents 0883c0906870
children 3bea78e1b175
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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"
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31
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32 cli_runopts cli_opts; /* GLOBAL */
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33
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34 static void printhelp(const char * progname);
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35
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36 static void printhelp(const char * progname) {
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37
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38 fprintf(stderr, "Dropbear client v%s\n"
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39 "Usage: %s [options] [email protected][:port]\n"
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40 "Options are:\n"
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41 "user Remote username\n"
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42 "host Remote host\n"
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43 "port Remote port\n"
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44 ,DROPBEAR_VERSION, progname);
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45 }
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46
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47 void cli_getopts(int argc, char ** argv) {
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48
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49 unsigned int i;
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50 char ** next = 0;
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51
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52 uid_t uid;
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53 struct passwd *pw;
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54
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55 char* userhostarg = NULL;
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56
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57 /* see printhelp() for options */
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58 cli_opts.progname = argv[0];
39
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59 cli_opts.remotehost = NULL;
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60 cli_opts.remoteport = NULL;
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61 cli_opts.username = NULL;
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62 cli_opts.cmd = NULL;
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63 cli_opts.wantpty = 1;
39
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64 opts.nolocaltcp = 0;
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65 opts.noremotetcp = 0;
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66 /* not yet
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67 opts.ipv4 = 1;
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68 opts.ipv6 = 1;
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69 */
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70
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71 if (argc != 2) {
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72 printhelp(argv[0]);
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73 exit(EXIT_FAILURE);
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74 }
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75
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76 /* We'll be editing it, should probably make a copy */
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77 userhostarg = m_strdup(argv[1]);
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78
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79 cli_opts.remotehost = strchr(userhostarg, '@');
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80 if (cli_opts.remotehost == NULL) {
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81 /* no username portion, the cli-auth.c code can figure the local
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82 * user's name */
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83 cli_opts.remotehost = userhostarg;
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84 } else {
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85 cli_opts.remotehost[0] = '\0'; /* Split the user/host */
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86 cli_opts.remotehost++;
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87 cli_opts.username = userhostarg;
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88 }
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89
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90 if (cli_opts.username == NULL) {
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91 uid = getuid();
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92
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93 pw = getpwuid(uid);
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94 if (pw == NULL || pw->pw_name == NULL) {
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95 dropbear_exit("Couldn't find username for current user");
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96 }
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97
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98 cli_opts.username = m_strdup(pw->pw_name);
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99 }
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100
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101 if (cli_opts.remotehost[0] == '\0') {
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102 dropbear_exit("Bad hostname argument");
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103 }
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104
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105 cli_opts.remoteport = strchr(cli_opts.remotehost, ':');
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106 if (cli_opts.remoteport == NULL) {
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107 cli_opts.remoteport = "22";
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108 } else {
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109 cli_opts.remoteport[0] = '\0';
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110 cli_opts.remoteport++;
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111 }
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112
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113 #if 0
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114 for (i = 1; i < (unsigned int)argc; i++) {
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115 if (next) {
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116 *next = argv[i];
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117 if (*next == NULL) {
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118 dropbear_exit("Invalid null argument");
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119 }
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120 next = 0x00;
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121 continue;
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122 }
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123
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124 if (argv[i][0] == '-') {
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125 switch (argv[i][1]) {
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126 case 'b':
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127 next = &svr_opts.bannerfile;
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128 break;
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129 #ifdef DROPBEAR_DSS
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130 case 'd':
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131 next = &svr_opts.dsskeyfile;
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132 break;
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133 #endif
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134 #ifdef DROPBEAR_RSA
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135 case 'r':
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136 next = &svr_opts.rsakeyfile;
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137 break;
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138 #endif
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139 case 'F':
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140 svr_opts.forkbg = 0;
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141 break;
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142 #ifndef DISABLE_SYSLOG
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143 case 'E':
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144 svr_opts.usingsyslog = 0;
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145 break;
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146 #endif
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147 #ifndef DISABLE_LOCALTCPFWD
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148 case 'j':
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149 opts.nolocaltcp = 1;
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150 break;
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151 #endif
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152 #ifndef DISABLE_REMOTETCPFWD
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153 case 'k':
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154 opts.noremotetcp = 1;
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155 break;
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156 #endif
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157 case 'p':
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158 if (portnum < DROPBEAR_MAX_PORTS) {
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159 portstring[portnum] = NULL;
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160 next = &portstring[portnum];
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161 portnum++;
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162 }
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163 break;
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164 #ifdef DO_MOTD
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165 /* motd is displayed by default, -m turns it off */
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166 case 'm':
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167 svr_opts.domotd = 0;
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168 break;
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169 #endif
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170 case 'w':
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171 svr_opts.norootlogin = 1;
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172 break;
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173 #ifdef DROPBEAR_PASSWORD_AUTH
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174 case 's':
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175 svr_opts.noauthpass = 1;
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176 break;
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177 case 'g':
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178 svr_opts.norootpass = 1;
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179 break;
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180 #endif
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181 case 'h':
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182 printhelp(argv[0]);
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183 exit(EXIT_FAILURE);
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184 break;
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185 /*
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186 case '4':
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187 svr_opts.ipv4 = 0;
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188 break;
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189 case '6':
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190 svr_opts.ipv6 = 0;
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191 break;
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192 */
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193 default:
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194 fprintf(stderr, "Unknown argument %s\n", argv[i]);
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195 printhelp(argv[0]);
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196 exit(EXIT_FAILURE);
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197 break;
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198 }
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199 }
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200 }
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201 #endif
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202
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203 }