garbeam@2: /*
garbeam@2:  * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
garbeam@2:  * See LICENSE file for license details.
garbeam@2:  */
garbeam@76: #include "dwm.h"
garbeam@2: 
garbeam@2: #include <stdarg.h>
garbeam@2: #include <stdio.h>
garbeam@2: #include <stdlib.h>
garbeam@5: #include <sys/wait.h>
garbeam@5: #include <unistd.h>
garbeam@5: 
garbeam@84: /* static */
garbeam@2: 
garbeam@3: static void
garbeam@3: bad_malloc(unsigned int size)
garbeam@3: {
garbeam@3: 	fprintf(stderr, "fatal: could not malloc() %d bytes\n",
garbeam@3: 			(int) size);
garbeam@3: 	exit(1);
garbeam@3: }
garbeam@3: 
garbeam@84: /* extern */
garbeam@76: 
garbeam@3: void *
garbeam@3: emallocz(unsigned int size)
garbeam@3: {
garbeam@3: 	void *res = calloc(1, size);
garbeam@3: 	if(!res)
garbeam@3: 		bad_malloc(size);
garbeam@3: 	return res;
garbeam@3: }
garbeam@3: 
garbeam@3: void
garbeam@76: eprint(const char *errstr, ...) {
garbeam@76: 	va_list ap;
garbeam@76: 	va_start(ap, errstr);
garbeam@76: 	vfprintf(stderr, errstr, ap);
garbeam@76: 	va_end(ap);
garbeam@76: 	exit(1);
garbeam@76: }
garbeam@76: 
garbeam@76: void
garbeam@49: spawn(Arg *arg)
garbeam@5: {
garbeam@49: 	char **argv = (char **)arg->argv;
garbeam@14: 	if(!argv || !argv[0])
garbeam@5: 		return;
garbeam@5: 	if(fork() == 0) {
garbeam@5: 		if(fork() == 0) {
garbeam@5: 			if(dpy)
garbeam@5: 				close(ConnectionNumber(dpy));
garbeam@9: 			setsid();
garbeam@14: 			execvp(argv[0], argv);
garbeam@34: 			fprintf(stderr, "dwm: execvp %s", argv[0]);
garbeam@5: 			perror(" failed");
garbeam@5: 		}
garbeam@5: 		exit (0);
garbeam@5: 	}
garbeam@5: 	wait(0);
garbeam@5: }