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490
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1 /*
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545
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2 * crashRun - execute command with restricted CPU time and memory usage
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490
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3 *
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502
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4 * Copyright (C)
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545
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5 * 2005 Thomas Kuehne <thomas@kuehne.cn>
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502
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6 * 2005 Anders F Björklund <afb@algonet.se>
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490
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7 *
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8 * This program is free software; you can redistribute it and/or modify
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9 * it under the terms of the GNU General Public License as published by
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10 * the Free Software Foundation; either version 2 of the License, or
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11 * (at your option) any later version.
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12 *
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13 * This program is distributed in the hope that it will be useful,
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14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 * GNU General Public License for more details.
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17 *
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18 * You should have received a copy of the GNU General Public License
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19 * along with this program; if not, write to the Free Software
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20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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21 *
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22 * $HeadURL$
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23 * $Date$
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24 * $Author$
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25 *
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26 */
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27
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498
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28 #include <errno.h>
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29 #include <string.h>
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30 #include <stdlib.h>
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31 #include <stdio.h>
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545
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32 #include <signal.h>
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498
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33
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545
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34 const int TIME_OUT= 5*60; /* time-out in seconds (might be cpu or system time)*/
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35 const int MEM_LIMIT = 200; /* mem megabytes */
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36
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545
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37 /* try to cope with -ansi and other threads */
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38 #if defined(__GNU_LIBRARY__) || defined(__GLIBC__) || defined(__USE_POSIX)
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498
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39 #define USE_POSIX
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40 #endif
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41
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490
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42 #ifdef linux
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43 #define USE_POSIX
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44 #endif
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45
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46 #if defined(__APPLE__) && defined(__MACH__)
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47 #define USE_POSIX
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48 #endif
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49
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50 #ifdef __FreeBSD__
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51 #define USE_POSIX
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52 #endif
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53
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545
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54 #if !defined(USE_POSIX) && \
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55 (defined(WINDOWS) || defined(WIN) || defined(WINVER) || defined(WIN32))
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56 #define USE_WINDOWS
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57 #endif
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58
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545
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59
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60 /* is the environment sane? */
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61 #if defined(USE_POSIX) && defined(USE_WINDOWS)
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62 #error USE_WINDOWS and USE_POSIX are defined
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63 #endif
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64
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65 #if !defined(USE_POSIX) && !defined(USE_WINDOWS)
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66 #error neither USE_POSIX nor USE_WINDOWS are defined
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67 #endif
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68
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69
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70 /* API inludes and config */
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490
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71 #ifdef USE_POSIX
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72 #define USE_POSIX_LIMITS
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73 #include <sys/types.h>
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490
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74 #include <unistd.h>
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75 #include <sys/wait.h>
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545
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76 static pid_t pID;
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77 #endif
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78
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545
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79 #ifdef USE_POSIX_LIMITS
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80 #ifndef USE_POSIX
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81 #error USE_POSIX_LIMITS requires USE_POSIX
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82 #endif
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83 #include <sys/resource.h>
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502
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84 #include <sys/types.h>
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85 #endif
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86
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545
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87
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88 /* let's start implementing :) */
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495
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89
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545
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90 void handleSignal(int signalID){
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91 #ifdef SIGALARM
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92 if( signalID==SIGALRM
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498
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93 #ifdef SIGXCPU
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94 || signalID==SIGXCPU
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498
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95 #endif
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96 )
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97 printf("EXIT CODE: signal %d (time-out after %d seconds)", signalID, TIME_OUT);
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98 else
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99 #endif
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100 printf("EXIT CODE: signal %d, errno %d\n", signalID, errno);
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101
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102 fflush(stdout);
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103 fflush(stderr);
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104
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105 #ifdef USE_POSIX
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106 kill(-pID, SIGTERM);
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107 sleep(1);
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108 kill(-pID, SIGKILL);
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109 #else
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110 #error sub processes have to be killed
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111 #endif
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112
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113 #ifdef SIGUSR1
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114 if(signalID==SIGUSR1 || signalID==SIGUSR2)
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115 exit(EXIT_SUCCESS);
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116 else
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117 #endif
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118 exit(EXIT_FAILURE);
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119 }
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120
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121 void setupLimits(){
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122 #ifdef USE_POSIX_LIMITS
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123 struct rlimit limit;
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124
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125 limit.rlim_cur = TIME_OUT;
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126 limit.rlim_max = TIME_OUT;
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127 if(0!=setrlimit(RLIMIT_CPU, &limit)){
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128 fprintf(stderr, "failed to set cpu limit [%d]\n", errno);
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129 exit(EXIT_FAILURE);
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130 }
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131
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132 limit.rlim_cur = MEM_LIMIT * 1024L * 1024L;
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133 limit.rlim_max = MEM_LIMIT * 1024L * 1024L;
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134 #ifdef RLIMIT_AS
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135 if(0!=setrlimit(RLIMIT_AS, &limit)){
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136 fprintf(stderr, "failed to set mem limit (AS) [%d]\n", errno);
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137 exit(EXIT_FAILURE);
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498
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138 }
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139 #endif
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140
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141 if(0!=setrlimit(RLIMIT_DATA, &limit)){
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142 fprintf(stderr, "failed to set mem limit (DATA) [%d]\n", errno);
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143 exit(EXIT_FAILURE);
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144 }
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145
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146 if(0!=setrlimit(RLIMIT_RSS, &limit)){
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147 fprintf(stderr, "failed to set mem limit (RSS) [%d]\n", errno);
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148 exit(EXIT_FAILURE);
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149 }
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150 #if defined(RLIMIT_MEMLOCK) && !defined(linux)
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151 if(0!=setrlimit(RLIMIT_MEMLOCK, &limit)){
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152 fprintf(stderr, "failed to set mem limit (MEMLOCK) [%d]\n", errno);
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153 exit(EXIT_FAILURE);
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154 }
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155 #endif
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156 #endif /* USE_POSIX_LIMITS */
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490
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157 }
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158
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159 void setupHandlers(){
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160 #ifdef USE_POSIX
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161 #ifdef SIGHUP
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162 signal(SIGHUP, &handleSignal);
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163 #endif
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164 signal(SIGINT, &handleSignal);
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165 #ifdef SIGQUIT
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166 signal(SIGQUIT, &handleSignal);
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167 #endif
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168 signal(SIGILL, &handleSignal);
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169 #ifdef SIGTRAP
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170 signal(SIGTRAP, &handleSignal);
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171 #endif
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172 signal(SIGABRT, &handleSignal);
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173 #ifdef SIGIOT
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174 signal(SIGIOT, &handleSignal);
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175 #endif
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176 #ifdef SIGBUS
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177 signal(SIGBUS, &handleSignal);
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178 #endif
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179 signal(SIGFPE, &handleSignal);
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180 #ifdef SIGKILL
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181 signal(SIGKILL, &handleSignal);
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182 #endif
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183 #ifdef SIGUSR1
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184 signal(SIGUSR1, &handleSignal);
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185 #endif
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186 signal(SIGSEGV, &handleSignal);
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187 #ifdef SIGUSR2
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188 signal(SIGUSR2, &handleSignal);
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189 #endif
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190 #ifdef SIGPIPE
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191 signal(SIGPIPE, &handleSignal);
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192 #endif
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193 #ifdef SIGALRM
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194 signal(SIGALRM, &handleSignal);
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195 #endif
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196 signal(SIGTERM, &handleSignal);
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197 #ifdef SIGSTKFLT
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198 signal(SIGSTKFLT, &handleSignal);
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199 #endif
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200 #ifdef SIGTSTP
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201 signal(SIGTSTP, &handleSignal);
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202 #endif
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203 #ifdef SIGXCPU
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204 signal(SIGXCPU, &handleSignal);
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205 #endif
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206 #ifdef SIGXFSZ
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207 signal(SIGXFSZ, &handleSignal);
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208 #endif
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209 #ifdef SIGVTALRM
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210 signal(SIGVTALRM, &handleSignal);
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211 #endif
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212 #ifdef SIGSYS
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213 signal(SIGSYS, &handleSignal);
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214 #endif
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215 #endif /* USE_POSIX */
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216 }
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217
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218 char* reconstructCmd(int argc, char** argv){
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219 int cmdLen=1;
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220 int i;
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221 char* cmd;
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222
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223 for(i=0; i<argc; i++){
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224 cmdLen+=strlen(argv[i]);
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225 cmdLen+=3;
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502
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226 }
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227
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228 cmd = (char*)malloc(cmdLen);
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229 *cmd = '\x00';
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230
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231 for(i=0; i<argc; i++){
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232 strcat(cmd, "\"");
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233 strcat(cmd, argv[i]);
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234 strcat(cmd, "\" ");
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235 }
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236 return cmd;
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237 }
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238
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545
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239 int main(int argc, char** argv){
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240 char* cmd;
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241 if(argc<2){
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242 fprintf(stderr, "name of command to call required\n");
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243 return EXIT_FAILURE;
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244 }
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245 cmd = reconstructCmd(argc-1, argv+1);
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246
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247 #ifdef USE_POSIX
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248 setupLimits();
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249 pID = fork();
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250 if(pID == 0){
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251 /* child */
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252 pID=setsid();
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493
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253 #ifdef DEBUG
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254 printf("cmd[%i sec]: %s \n", TIME_OUT, cmd);
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493
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255 #endif
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256 printf("EXIT CODE: %d\n", system(cmd));
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545
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257 }else if(pID < 0){
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258 fprintf(stderr, "failed to fork\n");
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259 return EXIT_FAILURE;
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260 }else{
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545
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261 /* parent */
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262 setupHandlers();
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263 #if !(defined(USE_POSIX_LIMITS) && defined(SIGXCPU))
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264 alarm(TIME_OUT);
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265 #endif
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266 wait(NULL);
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267 }
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268 return EXIT_SUCCESS;
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498
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269 #else /* USE_POSIX */
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270
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545
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271 #error no test run implmentation present for your system
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490
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272
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273 #endif /* USE_POSIX else */
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545
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274 }
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