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490
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1 /*
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2 * crashRun - execute command with timeout limit and catch segfaults
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3 *
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4 * Copyright (C) 2005 Thomas Kuehne <thomas@kuehne.cn>
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5 *
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6 * This program is free software; you can redistribute it and/or modify
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7 * it under the terms of the GNU General Public License as published by
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8 * the Free Software Foundation; either version 2 of the License, or
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9 * (at your option) any later version.
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10 *
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11 * This program is distributed in the hope that it will be useful,
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 * GNU General Public License for more details.
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15 *
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16 * You should have received a copy of the GNU General Public License
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17 * along with this program; if not, write to the Free Software
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18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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19 *
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20 * $HeadURL$
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21 * $Date$
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22 * $Author$
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23 *
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24 */
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25
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498
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26 #include <errno.h>
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27 #include <string.h>
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28 #include <stdlib.h>
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29 #include <stdio.h>
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30
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31 /* time-out in seconds */
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32 #define TIME_OUT 480
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33
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34 #if defined(__GNU_LIBRARY__) || defined(__GLIBC__)
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35 #define USE_POSIX
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36 #endif
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37
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490
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38 #ifdef linux
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39 #define USE_POSIX
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40 #endif
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41
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42 #if defined(__APPLE__) && defined(__MACH__)
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43 #define USE_POSIX
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44 #endif
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45
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46 #ifdef __FreeBSD__
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47 #define USE_POSIX
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48 #endif
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49
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498
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50
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490
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51 #ifdef USE_POSIX
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52
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53 #include <unistd.h>
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54 #include <sys/wait.h>
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55
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495
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56 static pid_t pID;
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57
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498
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58 void resourceLimit(int signalID){
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59 #ifdef SIGXCPU
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60 if(signalID==SIGALRM || signalID==SIGXCPU){
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61 #else
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62 if(signalID==SIGALRM){
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63 #endif
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64 printf("EXIT CODE: signal %d (time-out after %d seconds)", signalID, TIME_OUT);
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65 }else{
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66 printf("EXIT CODE: signal %d\n", signalID);
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67 }
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68
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490
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69 fflush(stdout);
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70 fflush(stderr);
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495
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71 kill(-pID, SIGKILL);
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490
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72
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498
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73 if(signalID==SIGUSR1 || signalID==SIGUSR2){
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74 exit(EXIT_FAILURE);
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75 }else{
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76 exit(EXIT_SUCCESS);
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77 }
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490
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78 }
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79
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80 int main(int argc, char** arg){
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495
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81 pID = fork();
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490
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82 if (pID == 0){
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498
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83 /* child: resource management */
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495
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84 pID=setsid();
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85
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498
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86 /* child: execute args */
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490
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87 int cmdLen=1;
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88 int i;
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89 for(i=1; i<argc; i++){
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90 cmdLen+=strlen(arg[i]);
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91 cmdLen+=3;
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92 }
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93
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94 char* cmd = malloc(cmdLen);
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95 *cmd='\x00';
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96
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97 for(i=1; i<argc; i++){
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98 strcat(cmd, "\"");
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99 strcat(cmd, arg[i]);
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100 strcat(cmd, "\" ");
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101 }
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493
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102 #ifdef DEBUG
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490
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103 printf("cmd[%i s]: %s\n", TIME_OUT, cmd);
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493
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104 #endif
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105 fflush(stdout);
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106 fflush(stderr);
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498
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107 printf("EXIT CODE: %d\n", system(cmd));
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490
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108 }else if (pID < 0){
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109 fprintf(stderr, "failed to fork\n");
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110 return EXIT_FAILURE;
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111 }else{
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498
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112 /* parent : clean kill */
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490
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113 struct sigaction acti;
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498
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114 acti.sa_handler = &resourceLimit;
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115 sigaction(SIGHUP, &acti, NULL);
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116 sigaction(SIGINT, &acti, NULL);
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117 sigaction(SIGQUIT, &acti, NULL);
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118 sigaction(SIGABRT, &acti, NULL);
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119 sigaction(SIGTERM, &acti, NULL);
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120
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121 /* parent : timeout */
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490
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122 if(0!=sigaction(SIGALRM, &acti, NULL)){
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498
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123 fprintf(stderr, "failed to set timeout (%d)\n", errno);
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124 resourceLimit(SIGUSR1);
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125 return EXIT_FAILURE; /* never executed */
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490
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126 }
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127 alarm(TIME_OUT);
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128 wait(NULL);
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129 }
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130
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131 return EXIT_SUCCESS;
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132 }
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498
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133 #else /* USE_POSIX */
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490
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134
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498
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135 #error "no implementation present for your OS"
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490
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136
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137 #endif /* USE_POSIX else */
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