shithub: npe

ref: 2aee89298cbbf5c1b4d50e70733b52ae75c706fd
dir: /libnpe/system.c/

#include <npe.h>

#undef waitpid

int
system(char *s)
{
	int status;
	Waitmsg *w;
	pid_t pid;
	char cmd[30], *oty;

	if(!s)
		return 1; /* a command interpreter is available */
	pid = fork();
	if(pid == 0){
		oty = getenv("cputype");
		if(!oty)
			return -1;
		snprintf(cmd, sizeof cmd, "/%s/bin/rc", oty);
		execl(cmd, "rc", "-c", s, NULL);
		exits(nil);
	}
	if(pid < 0){
		return -1;
	}
	for(;;){
		w = wait();
		if(w == nil || w->pid == pid)
			break;
	}

	status = -1;
	if(w != nil){
		status = w->msg[0] != 0;
		free(w);
	}
	return status;
}