1 | /* |
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2 | * Chat -- a program for automatic session establishment (i.e. dial |
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3 | * the phone and log in). |
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4 | * |
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5 | * Standard termination codes: |
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6 | * 0 - successful completion of the script |
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7 | * 1 - invalid argument, expect string too large, etc. |
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8 | * 2 - error on an I/O operation or fatal error condition. |
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9 | * 3 - timeout waiting for a simple string. |
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10 | * 4 - the first string declared as "ABORT" |
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11 | * 5 - the second string declared as "ABORT" |
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12 | * 6 - ... and so on for successive ABORT strings. |
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13 | * |
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14 | * This software is in the public domain. |
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15 | * |
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16 | * ----------------- |
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17 | * 22-May-99 added environment substitutuion, enabled with -E switch. |
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18 | * Andreas Arens <andras@cityweb.de>. |
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19 | * |
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20 | * 12-May-99 added a feature to read data to be sent from a file, |
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21 | * if the send string starts with @. Idea from gpk <gpk@onramp.net>. |
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22 | * |
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23 | * added -T and -U option and \T and \U substitution to pass a phone |
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24 | * number into chat script. Two are needed for some ISDN TA applications. |
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25 | * Keith Dart <kdart@cisco.com> |
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26 | * |
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27 | * |
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28 | * Added SAY keyword to send output to stderr. |
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29 | * This allows to turn ECHO OFF and to output specific, user selected, |
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30 | * text to give progress messages. This best works when stderr |
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31 | * exists (i.e.: pppd in nodetach mode). |
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32 | * |
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33 | * Added HANGUP directives to allow for us to be called |
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34 | * back. When HANGUP is set to NO, chat will not hangup at HUP signal. |
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35 | * We rely on timeouts in that case. |
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36 | * |
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37 | * Added CLR_ABORT to clear previously set ABORT string. This has been |
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38 | * dictated by the HANGUP above as "NO CARRIER" (for example) must be |
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39 | * an ABORT condition until we know the other host is going to close |
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40 | * the connection for call back. As soon as we have completed the |
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41 | * first stage of the call back sequence, "NO CARRIER" is a valid, non |
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42 | * fatal string. As soon as we got called back (probably get "CONNECT"), |
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43 | * we should re-arm the ABORT "NO CARRIER". Hence the CLR_ABORT command. |
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44 | * Note that CLR_ABORT packs the abort_strings[] array so that we do not |
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45 | * have unused entries not being reclaimed. |
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46 | * |
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47 | * In the same vein as above, added CLR_REPORT keyword. |
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48 | * |
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49 | * Allow for comments. Line starting with '#' are comments and are |
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50 | * ignored. If a '#' is to be expected as the first character, the |
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51 | * expect string must be quoted. |
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52 | * |
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53 | * |
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54 | * Francis Demierre <Francis@SwissMail.Com> |
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55 | * Thu May 15 17:15:40 MET DST 1997 |
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56 | * |
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57 | * |
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58 | * Added -r "report file" switch & REPORT keyword. |
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59 | * Robert Geer <bgeer@xmission.com> |
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60 | * |
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61 | * Added -s "use stderr" and -S "don't use syslog" switches. |
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62 | * June 18, 1997 |
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63 | * Karl O. Pinc <kop@meme.com> |
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64 | * |
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65 | * |
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66 | * Added -e "echo" switch & ECHO keyword |
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67 | * Dick Streefland <dicks@tasking.nl> |
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68 | * |
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69 | * |
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70 | * Considerable updates and modifications by |
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71 | * Al Longyear <longyear@pobox.com> |
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72 | * Paul Mackerras <paulus@cs.anu.edu.au> |
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73 | * |
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74 | * |
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75 | * The original author is: |
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76 | * |
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77 | * Karl Fox <karl@MorningStar.Com> |
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78 | * Morning Star Technologies, Inc. |
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79 | * 1760 Zollinger Road |
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80 | * Columbus, OH 43221 |
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81 | * (614)451-1883 |
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82 | * |
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83 | */ |
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84 | |
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85 | /* $Id$ */ |
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86 | |
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87 | /* |
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88 | Fixes and some Changes by Wilfried Busalski Lancier-Monitoring GmbH Germany |
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89 | wilfried.busalski@muenster.de |
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90 | |
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91 | Fixes: put_string() Free memory allocated by clean() |
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92 | get_string() Free memory allocated by clean() |
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93 | chat_main() Will Distroy's no more the chat-script |
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94 | getnextcommand() sepatator changed to '@' |
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95 | */ |
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96 | |
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97 | #include <stdio.h> |
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98 | #include <ctype.h> |
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99 | #include <time.h> |
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100 | #include <fcntl.h> |
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101 | #include <errno.h> |
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102 | #include <string.h> |
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103 | #include <stdlib.h> |
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104 | #include <unistd.h> |
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105 | #include <sys/types.h> |
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106 | #include <sys/stat.h> |
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107 | #include <syslog.h> |
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108 | #include <termios.h> |
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109 | #include "pppd.h" |
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110 | |
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111 | #undef TERMIOS |
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112 | #define TERMIOS |
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113 | |
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114 | |
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115 | #define STR_LEN 1024 |
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116 | char temp2[STR_LEN]; |
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117 | |
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118 | #ifndef SIGTYPE |
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119 | #define SIGTYPE void |
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120 | #endif |
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121 | |
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122 | #undef __V |
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123 | |
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124 | #ifdef __STDC__ |
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125 | #include <stdarg.h> |
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126 | #define __V(x) x |
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127 | #else |
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128 | #include <varargs.h> |
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129 | #define __V(x) (va_alist) va_dcl |
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130 | #define const |
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131 | #endif |
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132 | |
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133 | #ifndef O_NONBLOCK |
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134 | #define O_NONBLOCK O_NDELAY |
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135 | #endif |
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136 | |
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137 | |
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138 | /*************** Micro getopt() *********************************************/ |
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139 | #define OPTION(c,v) (_O&2&&**v?*(*v)++:!c||_O&4?0:(!(_O&1)&& \ |
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140 | (--c,++v),_O=4,c&&**v=='-'&&v[0][1]?*++*v=='-'\ |
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141 | &&!v[0][1]?(--c,++v,0):(_O=2,*(*v)++):0)) |
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142 | #define OPTARG(c,v) (_O&2?**v||(++v,--c)?(_O=1,--c,*v++): \ |
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143 | (_O=4,(char*)0):(char*)0) |
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144 | #define OPTONLYARG(c,v) (_O&2&&**v?(_O=1,--c,*v++):(char*)0) |
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145 | #define ARG(c,v) (c?(--c,*v++):(char*)0) |
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146 | |
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147 | #if 0 |
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148 | static int _O = 0; /* Internal state */ |
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149 | #endif |
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150 | /*************** Micro getopt() *********************************************/ |
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151 | |
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152 | #define MAX_ABORTS 16 |
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153 | #define MAX_REPORTS 16 |
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154 | #define DEFAULT_CHAT_TIMEOUT 45 |
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155 | #define MAX_TIMEOUTS 10 |
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156 | |
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157 | static int echo = 0; |
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158 | static int quiet = 0; |
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159 | static int use_env = 0; |
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160 | static int exit_code = 0; |
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161 | static char *phone_num = (char *) 0; |
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162 | static char *phone_num2 = (char *) 0; |
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163 | static int ttyfd; |
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164 | static int timeout = DEFAULT_CHAT_TIMEOUT; |
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165 | |
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166 | #ifdef TERMIOS |
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167 | #define term_parms struct termios |
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168 | #define get_term_param(param) tcgetattr(0, param) |
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169 | #define set_term_param(param) tcsetattr(0, TCSANOW, param) |
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170 | struct termios saved_tty_parameters; |
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171 | #endif |
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172 | |
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173 | char *fail_reason = (char *)0; |
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174 | char fail_buffer[50]; |
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175 | char *abort_string[MAX_ABORTS]={"BUSY","NO DIALTONE","NO CARRIER","NO ANSWER","RING\r\nRING"}; |
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176 | int n_aborts = 5; |
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177 | int abort_next = 0, timeout_next = 0, echo_next = 0; |
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178 | int clear_abort_next = 0; |
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179 | |
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180 | char *report_string[MAX_REPORTS] ; |
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181 | char report_buffer[50] ; |
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182 | int n_reports = 0, report_next = 0, report_gathering = 0 ; |
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183 | int clear_report_next = 0; |
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184 | |
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185 | int say_next = 0, hup_next = 0; |
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186 | |
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187 | void *dup_mem(void *b, size_t c); |
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188 | void *copy_of(char *s); |
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189 | void break_sequence(void); |
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190 | static int get_string(register char *string); |
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191 | static int put_string(register char *s); |
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192 | static int write_char(int c); |
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193 | static int put_char(int c); |
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194 | static int get_char(void); |
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195 | void chat_send(register char *s); |
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196 | /* static char *character(int c); */ |
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197 | void chat_expect(register char *s); |
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198 | static char *clean(register char *s, int sending); |
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199 | char *expect_strtok(char *, char *); |
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200 | int chatmain(int, int, char *); |
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201 | |
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202 | |
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203 | void *dup_mem( |
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204 | void *b, |
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205 | size_t c) |
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206 | { |
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207 | void *ans = malloc (c); |
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208 | if (!ans) |
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209 | return NULL; |
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210 | |
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211 | memcpy(ans, b, c); |
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212 | return ans; |
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213 | } |
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214 | |
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215 | void *copy_of( |
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216 | char *s) |
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217 | { |
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218 | return dup_mem(s, strlen (s) + 1); |
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219 | } |
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220 | |
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221 | static char *getnextcommand(char *string,char *buff) |
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222 | { |
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223 | char *token; |
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224 | int len; |
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225 | |
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226 | token=strchr(string,'@'); |
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227 | if (token==NULL){ |
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228 | return NULL; |
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229 | } |
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230 | len=token-string; |
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231 | if(len > 78 ){ |
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232 | len=78; |
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233 | } |
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234 | memcpy(buff,string,len); |
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235 | buff[len]=0; |
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236 | return(token+1); |
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237 | } |
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238 | |
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239 | int chatmain(int fd, int mode, char *pScript) |
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240 | { |
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241 | char arg[80]; |
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242 | char *script; |
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243 | |
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244 | /* initialize exit code */ |
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245 | exit_code = 0; |
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246 | ttyfd = fd; |
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247 | |
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248 | script=pScript; |
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249 | |
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250 | if ( debug ) { |
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251 | dbglog("chat_main: %s\n", script); |
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252 | } |
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253 | |
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254 | /* get first expect string */ |
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255 | script = getnextcommand(script,arg); |
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256 | while (( script != NULL ) && ( exit_code == 0 )) { |
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257 | /* process the expect string */ |
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258 | chat_expect(arg); |
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259 | if ( exit_code == 0 ) { |
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260 | /* get the next send string */ |
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261 | script = getnextcommand(script,arg); |
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262 | if ( script != NULL ) { |
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263 | /* process the send string */ |
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264 | chat_send(arg); |
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265 | |
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266 | /* get the next expect string */ |
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267 | script = getnextcommand(script,arg); |
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268 | } |
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269 | } |
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270 | } |
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271 | ttyfd = (int)-1; |
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272 | |
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273 | return ( exit_code ); |
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274 | } |
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275 | |
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276 | void break_sequence(void) |
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277 | { |
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278 | tcsendbreak(ttyfd, 0); |
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279 | } |
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280 | |
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281 | /* |
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282 | * 'Clean up' this string. |
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283 | */ |
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284 | static char *clean( |
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285 | char *s, |
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286 | int sending ) /* set to 1 when sending (putting) this string. */ |
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287 | { |
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288 | char temp[STR_LEN], env_str[STR_LEN], cur_chr; |
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289 | register char *s1, *phchar; |
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290 | int add_return = sending; |
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291 | #define isoctal(chr) (((chr) >= '0') && ((chr) <= '7')) |
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292 | #define isalnumx(chr) ((((chr) >= '0') && ((chr) <= '9')) \ |
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293 | || (((chr) >= 'a') && ((chr) <= 'z')) \ |
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294 | || (((chr) >= 'A') && ((chr) <= 'Z')) \ |
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295 | || (chr) == '_') |
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296 | |
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297 | s1 = temp; |
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298 | while (*s) { |
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299 | cur_chr = *s++; |
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300 | if (cur_chr == '^') { |
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301 | cur_chr = *s++; |
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302 | if (cur_chr == '\0') { |
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303 | *s1++ = '^'; |
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304 | break; |
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305 | } |
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306 | cur_chr &= 0x1F; |
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307 | if (cur_chr != 0) { |
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308 | *s1++ = cur_chr; |
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309 | } |
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310 | continue; |
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311 | } |
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312 | |
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313 | if (use_env && cur_chr == '$') { /* ARI */ |
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314 | phchar = env_str; |
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315 | while (isalnumx(*s)) |
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316 | *phchar++ = *s++; |
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317 | *phchar = '\0'; |
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318 | phchar = getenv(env_str); |
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319 | if (phchar) |
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320 | while (*phchar) |
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321 | *s1++ = *phchar++; |
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322 | continue; |
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323 | } |
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324 | |
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325 | if (cur_chr != '\\') { |
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326 | *s1++ = cur_chr; |
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327 | continue; |
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328 | } |
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329 | |
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330 | cur_chr = *s++; |
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331 | if (cur_chr == '\0') { |
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332 | if (sending) { |
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333 | *s1++ = '\\'; |
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334 | *s1++ = '\\'; |
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335 | } |
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336 | break; |
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337 | } |
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338 | |
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339 | switch (cur_chr) { |
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340 | case 'b': |
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341 | *s1++ = '\b'; |
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342 | break; |
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343 | |
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344 | case 'c': |
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345 | if (sending && *s == '\0') |
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346 | add_return = 0; |
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347 | else |
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348 | *s1++ = cur_chr; |
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349 | break; |
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350 | |
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351 | case '\\': |
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352 | case 'K': |
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353 | case 'p': |
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354 | case 'd': |
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355 | if (sending) |
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356 | *s1++ = '\\'; |
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357 | *s1++ = cur_chr; |
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358 | break; |
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359 | |
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360 | case 'T': |
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361 | if (sending && phone_num) { |
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362 | for (phchar = phone_num; *phchar != '\0'; phchar++) |
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363 | *s1++ = *phchar; |
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364 | } |
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365 | else { |
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366 | *s1++ = '\\'; |
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367 | *s1++ = 'T'; |
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368 | } |
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369 | break; |
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370 | |
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371 | case 'U': |
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372 | if (sending && phone_num2) { |
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373 | for (phchar = phone_num2; *phchar != '\0'; phchar++) |
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374 | *s1++ = *phchar; |
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375 | } |
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376 | else { |
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377 | *s1++ = '\\'; |
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378 | *s1++ = 'U'; |
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379 | } |
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380 | break; |
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381 | |
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382 | case 'q': |
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383 | quiet = 1; |
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384 | break; |
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385 | |
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386 | case 'r': |
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387 | *s1++ = '\r'; |
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388 | break; |
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389 | |
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390 | case 'n': |
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391 | *s1++ = '\n'; |
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392 | break; |
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393 | |
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394 | case 's': |
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395 | *s1++ = ' '; |
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396 | break; |
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397 | |
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398 | case 't': |
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399 | *s1++ = '\t'; |
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400 | break; |
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401 | |
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402 | case 'N': |
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403 | if (sending) { |
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404 | *s1++ = '\\'; |
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405 | *s1++ = '\0'; |
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406 | } |
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407 | else |
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408 | *s1++ = 'N'; |
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409 | break; |
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410 | |
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411 | case '$': /* ARI */ |
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412 | if (use_env) { |
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413 | *s1++ = cur_chr; |
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414 | break; |
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415 | } |
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416 | /* FALL THROUGH */ |
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417 | |
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418 | default: |
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419 | if (isoctal (cur_chr)) { |
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420 | cur_chr &= 0x07; |
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421 | if (isoctal (*s)) { |
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422 | cur_chr <<= 3; |
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423 | cur_chr |= *s++ - '0'; |
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424 | if (isoctal (*s)) { |
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425 | cur_chr <<= 3; |
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426 | cur_chr |= *s++ - '0'; |
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427 | } |
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428 | } |
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429 | |
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430 | if (cur_chr != 0 || sending) { |
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431 | if (sending && (cur_chr == '\\' || cur_chr == 0)) |
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432 | *s1++ = '\\'; |
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433 | *s1++ = cur_chr; |
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434 | } |
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435 | break; |
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436 | } |
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437 | |
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438 | if (sending) |
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439 | *s1++ = '\\'; |
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440 | *s1++ = cur_chr; |
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441 | break; |
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442 | } |
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443 | } |
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444 | |
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445 | if (add_return) |
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446 | *s1++ = '\r'; |
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447 | |
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448 | *s1++ = '\0'; /* guarantee closure */ |
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449 | *s1++ = '\0'; /* terminate the string */ |
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450 | return dup_mem (temp, (size_t) (s1 - temp)); /* may have embedded nuls */ |
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451 | } |
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452 | |
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453 | /* |
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454 | * A modified version of 'strtok'. This version skips \ sequences. |
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455 | */ |
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456 | char *expect_strtok ( |
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457 | char *s, char *term) |
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458 | { |
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459 | static char *str = ""; |
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460 | int escape_flag = 0; |
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461 | char *result; |
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462 | |
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463 | /* |
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464 | * If a string was specified then do initial processing. |
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465 | */ |
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466 | if (s) |
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467 | str = s; |
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468 | |
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469 | /* |
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470 | * If this is the escape flag then reset it and ignore the character. |
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471 | */ |
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472 | if (*str) |
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473 | result = str; |
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474 | else |
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475 | result = (char *) 0; |
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476 | |
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477 | while (*str) { |
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478 | if (escape_flag) { |
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479 | escape_flag = 0; |
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480 | ++str; |
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481 | continue; |
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482 | } |
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483 | |
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484 | if (*str == '\\') { |
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485 | ++str; |
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486 | escape_flag = 1; |
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487 | continue; |
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488 | } |
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489 | |
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490 | /* |
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491 | * If this is not in the termination string, continue. |
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492 | */ |
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493 | if (strchr (term, *str) == (char *) 0) { |
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494 | ++str; |
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495 | continue; |
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496 | } |
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497 | |
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498 | /* |
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499 | * This is the terminator. Mark the end of the string and stop. |
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500 | */ |
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501 | *str++ = '\0'; |
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502 | break; |
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503 | } |
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504 | return (result); |
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505 | } |
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506 | |
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507 | /* |
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508 | * Process the expect string |
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509 | */ |
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510 | void chat_expect ( |
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511 | char *s) |
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512 | { |
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513 | char *expect; |
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514 | char *reply; |
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515 | |
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516 | if (strcmp(s, "HANGUP") == 0) { |
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517 | ++hup_next; |
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518 | return; |
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519 | } |
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520 | |
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521 | if (strcmp(s, "ABORT") == 0) { |
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522 | ++abort_next; |
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523 | return; |
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524 | } |
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525 | |
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526 | if (strcmp(s, "CLR_ABORT") == 0) { |
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527 | ++clear_abort_next; |
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528 | return; |
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529 | } |
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530 | |
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531 | if (strcmp(s, "REPORT") == 0) { |
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532 | ++report_next; |
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533 | return; |
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534 | } |
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535 | |
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536 | if (strcmp(s, "CLR_REPORT") == 0) { |
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537 | ++clear_report_next; |
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538 | return; |
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539 | } |
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540 | |
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541 | if (strcmp(s, "TIMEOUT") == 0) { |
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542 | ++timeout_next; |
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543 | return; |
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544 | } |
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545 | |
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546 | if (strcmp(s, "ECHO") == 0) { |
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547 | ++echo_next; |
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548 | return; |
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549 | } |
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550 | |
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551 | if (strcmp(s, "SAY") == 0) { |
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552 | ++say_next; |
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553 | return; |
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554 | } |
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555 | |
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556 | /* |
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557 | * Fetch the expect and reply string. |
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558 | */ |
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559 | for (;;) { |
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560 | expect = expect_strtok (s, "-"); |
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561 | s = (char *) 0; |
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562 | |
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563 | if (expect == (char *) 0) |
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564 | return; |
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565 | |
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566 | reply = expect_strtok (s, "-"); |
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567 | |
---|
568 | /* |
---|
569 | * Handle the expect string. If successful then exit. |
---|
570 | */ |
---|
571 | if (get_string (expect)) |
---|
572 | return; |
---|
573 | |
---|
574 | /* |
---|
575 | * If there is a sub-reply string then send it. Otherwise any condition |
---|
576 | * is terminal. |
---|
577 | */ |
---|
578 | if (reply == (char *) 0 || exit_code != 3) |
---|
579 | break; |
---|
580 | |
---|
581 | chat_send (reply); |
---|
582 | } |
---|
583 | } |
---|
584 | |
---|
585 | #if 0 |
---|
586 | /* |
---|
587 | * Translate the input character to the appropriate string for printing |
---|
588 | * the data. |
---|
589 | */ |
---|
590 | |
---|
591 | static char *character( |
---|
592 | int c) |
---|
593 | { |
---|
594 | static char string[10]; |
---|
595 | char *meta; |
---|
596 | |
---|
597 | meta = (c & 0x80) ? "M-" : ""; |
---|
598 | c &= 0x7F; |
---|
599 | |
---|
600 | if (c < 32) |
---|
601 | sprintf(string, "%s^%c", meta, (int)c + '@'); |
---|
602 | else if (c == 127) |
---|
603 | sprintf(string, "%s^?", meta); |
---|
604 | else |
---|
605 | sprintf(string, "%s%c", meta, c); |
---|
606 | |
---|
607 | return (string); |
---|
608 | } |
---|
609 | #endif |
---|
610 | |
---|
611 | /* |
---|
612 | * process the reply string |
---|
613 | */ |
---|
614 | void chat_send ( |
---|
615 | char *s) |
---|
616 | { |
---|
617 | /* char file_data[STR_LEN]; */ |
---|
618 | |
---|
619 | if (say_next) { |
---|
620 | say_next = 0; |
---|
621 | s = clean(s, 1); |
---|
622 | write(2, s, strlen(s)); |
---|
623 | free(s); |
---|
624 | return; |
---|
625 | } |
---|
626 | |
---|
627 | if (hup_next) { |
---|
628 | hup_next = 0; |
---|
629 | return; |
---|
630 | } |
---|
631 | |
---|
632 | if (echo_next) { |
---|
633 | echo_next = 0; |
---|
634 | echo = (strcmp(s, "ON") == 0); |
---|
635 | return; |
---|
636 | } |
---|
637 | |
---|
638 | if (abort_next) { |
---|
639 | abort_next = 0; |
---|
640 | if ( n_aborts < MAX_ABORTS ) { |
---|
641 | char *s1; |
---|
642 | s1 = clean(s, 0); |
---|
643 | if (( strlen(s1) <= strlen(s) ) && ( strlen(s1) < sizeof(fail_buffer))) |
---|
644 | abort_string[n_aborts++] = s1; |
---|
645 | else |
---|
646 | free(s1); |
---|
647 | } |
---|
648 | return; |
---|
649 | } |
---|
650 | |
---|
651 | if (clear_abort_next) { |
---|
652 | clear_abort_next = 0; |
---|
653 | return; |
---|
654 | } |
---|
655 | |
---|
656 | if (report_next) { |
---|
657 | report_next = 0; |
---|
658 | return; |
---|
659 | } |
---|
660 | |
---|
661 | if (clear_report_next) { |
---|
662 | clear_report_next = 0; |
---|
663 | return; |
---|
664 | } |
---|
665 | |
---|
666 | if (timeout_next) { |
---|
667 | timeout_next = 0; |
---|
668 | timeout = atoi(s); |
---|
669 | |
---|
670 | if (timeout <= 0){ |
---|
671 | timeout = DEFAULT_CHAT_TIMEOUT; |
---|
672 | } |
---|
673 | return; |
---|
674 | } |
---|
675 | |
---|
676 | if (strcmp(s, "EOT") == 0){ |
---|
677 | s = "^D\\c"; |
---|
678 | } |
---|
679 | else{ |
---|
680 | if (strcmp(s, "BREAK") == 0){ |
---|
681 | s = "\\K\\c"; |
---|
682 | } |
---|
683 | |
---|
684 | if (!put_string(s)) { |
---|
685 | exit_code = 2; |
---|
686 | } |
---|
687 | } |
---|
688 | } |
---|
689 | |
---|
690 | static int get_char(void) |
---|
691 | { |
---|
692 | int status; |
---|
693 | char c; |
---|
694 | int tries=MAX_TIMEOUTS; |
---|
695 | |
---|
696 | while(tries) |
---|
697 | { |
---|
698 | status = read(ttyfd, &c, 1); |
---|
699 | switch (status) { |
---|
700 | case 1: |
---|
701 | return ((int)c & 0x7F); |
---|
702 | default: |
---|
703 | tries--; |
---|
704 | } |
---|
705 | } |
---|
706 | return -1; |
---|
707 | } |
---|
708 | |
---|
709 | static int put_char( |
---|
710 | int c) |
---|
711 | { |
---|
712 | char ch = c; |
---|
713 | |
---|
714 | return(write(ttyfd, &ch, 1)); |
---|
715 | } |
---|
716 | |
---|
717 | static int write_char ( |
---|
718 | int c) |
---|
719 | { |
---|
720 | if (put_char(c) < 1) { |
---|
721 | return (0); |
---|
722 | } |
---|
723 | return (1); |
---|
724 | } |
---|
725 | |
---|
726 | static int put_string ( |
---|
727 | char *s) |
---|
728 | { |
---|
729 | char *out,*free_ptr=0; |
---|
730 | |
---|
731 | quiet = 0; |
---|
732 | out = free_ptr = clean(s, 1); |
---|
733 | while (*out) { |
---|
734 | register char c = *out++; |
---|
735 | |
---|
736 | if (c != '\\') { |
---|
737 | if (!write_char (c)){ |
---|
738 | free(free_ptr); |
---|
739 | return 0; |
---|
740 | } |
---|
741 | continue; |
---|
742 | } |
---|
743 | |
---|
744 | c = *out++; |
---|
745 | |
---|
746 | switch (c) { |
---|
747 | case 'd': |
---|
748 | sleep(1); |
---|
749 | break; |
---|
750 | |
---|
751 | case 'K': |
---|
752 | break_sequence(); |
---|
753 | break; |
---|
754 | |
---|
755 | case 'p': |
---|
756 | #if 0 /* FIXME!!! */ |
---|
757 | usleep(10000); /* 1/100th of a second (arg is microseconds) */ |
---|
758 | #else |
---|
759 | sleep(1); |
---|
760 | #endif |
---|
761 | break; |
---|
762 | |
---|
763 | default: |
---|
764 | if (!write_char (c)){ |
---|
765 | free(free_ptr); |
---|
766 | return 0; |
---|
767 | } |
---|
768 | break; |
---|
769 | } |
---|
770 | } |
---|
771 | free(free_ptr); |
---|
772 | |
---|
773 | return (1); |
---|
774 | } |
---|
775 | |
---|
776 | /* |
---|
777 | * 'Wait for' this string to appear on this file descriptor. |
---|
778 | */ |
---|
779 | static int get_string( |
---|
780 | char *in_string) |
---|
781 | { |
---|
782 | int c, len, minlen; |
---|
783 | register char *s = temp2, *end = s + STR_LEN; |
---|
784 | char *logged = temp2; |
---|
785 | char *string=0; |
---|
786 | struct termios tios; |
---|
787 | |
---|
788 | memset(temp2, 0, sizeof(temp2)); |
---|
789 | |
---|
790 | tcgetattr(ttyfd, &tios); |
---|
791 | tios.c_cc[VMIN] = 0; |
---|
792 | tios.c_cc[VTIME] = timeout*10/MAX_TIMEOUTS; |
---|
793 | tcsetattr(ttyfd, TCSANOW, &tios); |
---|
794 | |
---|
795 | string = clean(in_string, 0); |
---|
796 | len = strlen(string); |
---|
797 | minlen = (len > sizeof(fail_buffer)? len: sizeof(fail_buffer)) - 1; |
---|
798 | |
---|
799 | if (len > STR_LEN) { |
---|
800 | exit_code = 1; |
---|
801 | free(string); |
---|
802 | return 0; |
---|
803 | } |
---|
804 | |
---|
805 | if (len == 0) { |
---|
806 | free(string); |
---|
807 | return (1); |
---|
808 | } |
---|
809 | |
---|
810 | while ( (c = get_char()) >= 0) { |
---|
811 | int n, abort_len; |
---|
812 | |
---|
813 | if(c == '\n' || c == '\r'){ |
---|
814 | s = temp2; |
---|
815 | *s=0; |
---|
816 | } |
---|
817 | else{ |
---|
818 | *s++ = c; |
---|
819 | *s=0; |
---|
820 | } |
---|
821 | |
---|
822 | if (s - temp2 >= len && |
---|
823 | c == string[len - 1] && |
---|
824 | strncmp(s - len, string, len) == 0) { |
---|
825 | free(string); |
---|
826 | return (1); |
---|
827 | } |
---|
828 | |
---|
829 | for (n = 0; n < n_aborts; ++n) { |
---|
830 | if (s - temp2 >= (abort_len = strlen(abort_string[n])) && |
---|
831 | strncmp(s - abort_len, abort_string[n], abort_len) == 0) { |
---|
832 | |
---|
833 | exit_code = n + 4; |
---|
834 | strcpy(fail_reason = fail_buffer, abort_string[n]); |
---|
835 | free(string); |
---|
836 | return (0); |
---|
837 | } |
---|
838 | } |
---|
839 | |
---|
840 | if (s >= end) { |
---|
841 | if (logged < s - minlen) { |
---|
842 | logged = s; |
---|
843 | } |
---|
844 | s -= minlen; |
---|
845 | memmove(temp2, s, minlen); |
---|
846 | logged = temp2 + (logged - s); |
---|
847 | s = temp2 + minlen; |
---|
848 | } |
---|
849 | } |
---|
850 | |
---|
851 | exit_code = 3; |
---|
852 | free(string); |
---|
853 | return (0); |
---|
854 | } |
---|