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Added signal catcher to restart after crash

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This commit is contained in:
gardners 2011-10-02 20:28:08 +10:30
parent 95c5124f86
commit d90b921188
1 changed files with 23 additions and 0 deletions
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dna.c
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@ -19,6 +19,8 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#include "mphlr.h" #include "mphlr.h"
#include <stdarg.h> #include <stdarg.h>
#include <signal.h>
#include <unistd.h>
char *gatewayspec=NULL; char *gatewayspec=NULL;
@ -269,6 +271,15 @@ int usage(char *complaint)
} }
#ifndef DNA_NO_MAIN #ifndef DNA_NO_MAIN
char *exec_args[128];
int exec_argc=0;
void signal_handler( int signal ) {
/* oops - caught a bad signal -- exec() ourselves fresh */
execv(exec_args[0],exec_args);
/* Quit if the exec() fails */
exit(-3);
}
int main(int argc,char **argv) int main(int argc,char **argv)
{ {
int c; int c;
@ -282,6 +293,18 @@ int main(int argc,char **argv)
#if defined WIN32 #if defined WIN32
WSADATA wsa_data; WSADATA wsa_data;
WSAStartup(MAKEWORD(1,1), &wsa_data); WSAStartup(MAKEWORD(1,1), &wsa_data);
#else
/* Catch sigsegv and other crash signals so that we can relaunch ourselves */
for(exec_argc=0;exec_argc<argc;exec_argc++)
exec_args[exec_argc]=strdup(argv[exec_argc]);
exec_args[exec_argc]=0;
signal( SIGSEGV, signal_handler );
signal( SIGFPE, signal_handler );
signal( SIGILL, signal_handler );
signal( SIGBUS, signal_handler );
#endif #endif
srandomdev(); srandomdev();