dwm/util.c

75 lines
1.1 KiB
C
Raw Normal View History

2006-07-10 17:35:39 +01:00
/*
* (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
* See LICENSE file for license details.
*/
#include "dwm.h"
2006-07-10 17:35:39 +01:00
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
2006-07-10 21:16:48 +01:00
#include <sys/wait.h>
#include <unistd.h>
/* static */
2006-07-10 17:35:39 +01:00
static void
badmalloc(unsigned int size)
{
eprint("fatal: could not malloc() %u bytes\n", size);
}
/* extern */
void *
emallocz(unsigned int size)
{
void *res = calloc(1, size);
2006-07-20 11:18:06 +01:00
if(!res)
badmalloc(size);
return res;
}
void
2006-08-04 09:27:16 +01:00
eprint(const char *errstr, ...)
{
va_list ap;
2006-07-20 11:18:06 +01:00
va_start(ap, errstr);
vfprintf(stderr, errstr, ap);
va_end(ap);
2006-07-18 07:18:54 +01:00
exit(EXIT_FAILURE);
}
void *
erealloc(void *ptr, unsigned int size)
{
void *res = realloc(ptr, size);
if(!res)
badmalloc(size);
return res;
}
2006-07-10 21:16:48 +01:00
void
2006-07-13 16:09:35 +01:00
spawn(Arg *arg)
2006-07-10 21:16:48 +01:00
{
static char *shell = NULL;
2006-07-20 11:18:06 +01:00
if(!shell && !(shell = getenv("SHELL")))
shell = "/bin/sh";
if(!arg->cmd)
2006-07-10 21:16:48 +01:00
return;
if(fork() == 0) {
if(fork() == 0) {
if(dpy)
close(ConnectionNumber(dpy));
setsid();
execl(shell, shell, "-c", arg->cmd, NULL);
2006-08-07 12:40:31 +01:00
fprintf(stderr, "dwm: execl '%s -c %s'", shell, arg->cmd);
2006-07-10 21:16:48 +01:00
perror(" failed");
}
exit(0);
2006-07-10 21:16:48 +01:00
}
wait(0);
}