/* $Header$ */
#include <signal.h>

system(str)
	char *str;
{
	int pid, exitstatus, waitval;
	int i;

	if ((pid = fork()) < 0) return -1;
	if (pid == 0) {
		for (i = 3; i <= 20; i++) close(i);
		execl("/bin/sh", "sh", "-c", str, (char *) 0);
		/* get here if execl fails ... */
		_exit(127);	/* see manual page */
	}
	while ((waitval = wait(&exitstatus)) != pid) {
		if (waitval == -1) break;
	}
	if (waitval == -1) {
		/* no child ??? or maybe interrupted ??? */
		exitstatus = -1;
	}
	return exitstatus;
}