1 | /* |
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2 | FUNCTION |
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3 | <<strsignal>>---convert signal number to string |
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4 | |
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5 | INDEX |
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6 | strsignal |
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7 | |
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8 | SYNOPSIS |
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9 | #include <string.h> |
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10 | char *strsignal(int <[signal]>); |
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11 | |
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12 | DESCRIPTION |
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13 | <<strsignal>> converts the signal number <[signal]> into a |
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14 | string. If <[signal]> is not a known signal number, the result |
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15 | will be of the form "Unknown signal NN" where NN is the <[signal]> |
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16 | is a decimal number. |
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17 | |
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18 | RETURNS |
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19 | This function returns a pointer to a string. Your application must |
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20 | not modify that string. |
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21 | |
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22 | PORTABILITY |
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23 | POSIX.1-2008 C requires <<strsignal>>, but does not specify the strings used |
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24 | for each signal number. |
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25 | |
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26 | <<strsignal>> requires no supporting OS subroutines. |
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27 | |
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28 | QUICKREF |
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29 | strsignal pure |
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30 | */ |
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31 | |
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32 | /* |
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33 | * Written by Joel Sherrill <joel.sherrill@OARcorp.com>. |
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34 | * |
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35 | * COPYRIGHT (c) 2010, 2017. |
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36 | * On-Line Applications Research Corporation (OAR). |
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37 | * |
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38 | * Permission to use, copy, modify, and distribute this software for any |
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39 | * purpose without fee is hereby granted, provided that this entire notice |
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40 | * is included in all copies of any software which is or includes a copy |
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41 | * or modification of this software. |
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42 | * |
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43 | * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED |
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44 | * WARRANTY. IN PARTICULAR, THE AUTHOR MAKES NO REPRESENTATION |
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45 | * OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY OF THIS |
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46 | * SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE. |
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47 | */ |
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48 | |
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49 | #include <string.h> |
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50 | #include <signal.h> |
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51 | #include <stdio.h> |
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52 | #include <stdlib.h> |
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53 | #include <reent.h> |
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54 | |
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55 | char * |
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56 | strsignal (int signal) |
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57 | { |
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58 | char *buffer; |
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59 | struct _reent *ptr; |
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60 | |
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61 | ptr = _REENT; |
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62 | |
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63 | _REENT_CHECK_SIGNAL_BUF(ptr); |
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64 | buffer = _REENT_SIGNAL_BUF(ptr); |
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65 | |
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66 | #if defined(SIGRTMIN) && defined(SIGRTMAX) |
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67 | if ((signal >= SIGRTMIN) && (signal <= SIGRTMAX)) { |
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68 | siprintf (buffer, "Real-time signal %d", signal - SIGRTMIN); |
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69 | return buffer; |
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70 | } |
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71 | #endif |
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72 | |
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73 | switch (signal) { |
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74 | #ifdef SIGHUP |
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75 | case SIGHUP: |
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76 | buffer = "Hangup"; |
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77 | break; |
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78 | #endif |
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79 | #ifdef SIGINT |
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80 | case SIGINT: |
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81 | buffer = "Interrupt"; |
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82 | break; |
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83 | #endif |
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84 | #ifdef SIGQUIT |
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85 | case SIGQUIT: |
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86 | buffer = "Quit"; |
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87 | break; |
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88 | #endif |
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89 | #ifdef SIGILL |
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90 | case SIGILL: |
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91 | buffer = "Illegal instruction"; |
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92 | break; |
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93 | #endif |
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94 | #ifdef SIGTRAP |
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95 | case SIGTRAP: |
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96 | buffer = "Trace/breakpoint trap"; |
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97 | break; |
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98 | #endif |
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99 | #ifdef SIGIOT |
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100 | #if defined(SIGABRT) && (SIGIOT != SIGABRT) |
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101 | case SIGABRT: |
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102 | #endif |
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103 | case SIGIOT: |
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104 | buffer = "IOT trap"; |
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105 | break; |
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106 | #endif |
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107 | #ifdef SIGEMT |
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108 | case SIGEMT: |
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109 | buffer = "EMT trap"; |
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110 | break; |
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111 | #endif |
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112 | #ifdef SIGFPE |
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113 | case SIGFPE: |
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114 | buffer = "Floating point exception"; |
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115 | break; |
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116 | #endif |
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117 | #ifdef SIGKILL |
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118 | case SIGKILL: |
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119 | buffer = "Killed"; |
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120 | break; |
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121 | #endif |
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122 | #ifdef SIGBUS |
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123 | case SIGBUS: |
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124 | buffer = "Bus error"; |
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125 | break; |
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126 | #endif |
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127 | #ifdef SIGSEGV |
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128 | case SIGSEGV: |
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129 | buffer = "Segmentation fault"; |
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130 | break; |
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131 | #endif |
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132 | #ifdef SIGSYS |
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133 | case SIGSYS: |
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134 | buffer = "Bad system call"; |
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135 | break; |
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136 | #endif |
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137 | #ifdef SIGPIPE |
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138 | case SIGPIPE: |
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139 | buffer = "Broken pipe"; |
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140 | break; |
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141 | #endif |
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142 | #ifdef SIGALRM |
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143 | case SIGALRM: |
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144 | buffer = "Alarm clock"; |
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145 | break; |
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146 | #endif |
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147 | #ifdef SIGTERM |
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148 | case SIGTERM: |
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149 | buffer = "Terminated"; |
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150 | break; |
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151 | #endif |
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152 | #ifdef SIGURG |
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153 | case SIGURG: |
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154 | buffer = "Urgent I/O condition"; |
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155 | break; |
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156 | #endif |
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157 | #ifdef SIGSTOP |
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158 | case SIGSTOP: |
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159 | buffer = "Stopped (signal)"; |
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160 | break; |
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161 | #endif |
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162 | #ifdef SIGTSTP |
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163 | case SIGTSTP: |
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164 | buffer = "Stopped"; |
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165 | break; |
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166 | #endif |
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167 | #ifdef SIGCONT |
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168 | case SIGCONT: |
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169 | buffer = "Continued"; |
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170 | break; |
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171 | #endif |
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172 | #ifdef SIGCHLD |
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173 | #if defined(SIGCLD) && (SIGCHLD != SIGCLD) |
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174 | case SIGCLD: |
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175 | #endif |
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176 | case SIGCHLD: |
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177 | buffer = "Child exited"; |
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178 | break; |
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179 | #endif |
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180 | #ifdef SIGTTIN |
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181 | case SIGTTIN: |
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182 | buffer = "Stopped (tty input)"; |
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183 | break; |
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184 | #endif |
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185 | #ifdef SIGTTOUT |
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186 | case SIGTTOUT: |
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187 | buffer = "Stopped (tty output)"; |
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188 | break; |
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189 | #endif |
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190 | #ifdef SIGIO |
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191 | #if defined(SIGPOLL) && (SIGIO != SIGPOLL) |
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192 | case SIGPOLL: |
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193 | #endif |
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194 | case SIGIO: |
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195 | buffer = "I/O possible"; |
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196 | break; |
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197 | #endif |
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198 | #ifdef SIGWINCH |
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199 | case SIGWINCH: |
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200 | buffer = "Window changed"; |
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201 | break; |
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202 | #endif |
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203 | #ifdef SIGUSR1 |
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204 | case SIGUSR1: |
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205 | buffer = "User defined signal 1"; |
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206 | break; |
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207 | #endif |
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208 | #ifdef SIGUSR2 |
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209 | case SIGUSR2: |
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210 | buffer = "User defined signal 2"; |
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211 | break; |
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212 | #endif |
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213 | #ifdef SIGPWR |
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214 | case SIGPWR: |
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215 | buffer = "Power Failure"; |
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216 | break; |
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217 | #endif |
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218 | #ifdef SIGXCPU |
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219 | case SIGXCPU: |
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220 | buffer = "CPU time limit exceeded"; |
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221 | break; |
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222 | #endif |
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223 | #ifdef SIGXFSZ |
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224 | case SIGXFSZ: |
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225 | buffer = "File size limit exceeded"; |
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226 | break; |
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227 | #endif |
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228 | #ifdef SIGVTALRM |
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229 | case SIGVTALRM : |
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230 | buffer = "Virtual timer expired"; |
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231 | break; |
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232 | #endif |
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233 | #ifdef SIGPROF |
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234 | case SIGPROF: |
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235 | buffer = "Profiling timer expired"; |
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236 | break; |
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237 | #endif |
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238 | #if defined(SIGLOST) && SIGLOST != SIGPWR |
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239 | case SIGLOST: |
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240 | buffer = "Resource lost"; |
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241 | break; |
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242 | #endif |
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243 | default: |
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244 | siprintf (buffer, "Unknown signal %d", signal); |
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245 | break; |
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246 | } |
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247 | |
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248 | return buffer; |
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249 | } |
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