#include <sys/types.h>

#include <sys/wait.h>

#include <unistd.h>

#include <stdio.h>

/* A "fire and forget" version of system().

I.E. we don't have to wait for the child */

void systemIgnore(char *command) {

int pid;

if (command == 0) {

fprintf(stderr,"NULL command passed to systemIgnore?\n");

return;

}

pid = fork();

if (pid == -1) {

fprintf(stderr,"systemIgnore couldn't fork(1)!\n");

return;

}

if (pid != 0) { //parent

pid_t retpid;

retpid = waitpid(pid, NULL, 0); //reap temp child

//fprintf(stderr,"systemIgnore::waitpid returned [%d]\n", retpid);

} else { //child

int tmppid;

tmppid = fork();

if (tmppid == -1) {

fprintf(stderr,"systemIgnore couldn't fork(2)!\n");

_exit(127);

}

if (tmppid != 0) {

_exit(0);

} else { //grandchild will be reaped by init on exit

setpgrp(); //so one can kill the whole group

char *argv[4];

argv[0] = "sh";

argv[1] = "-c";

argv[2] = command;

argv[3] = NULL;

execv("/bin/sh", argv);

_exit(127); //error if get to here

}

}

}

#ifdef TEST_SI

int main(int argc, char** argv) {

systemIgnore(argv[1]);

//while(1){sleep(1);}

return 0;

}

#endif