dwl

My patch set and modifications to dwl
git clone git://git.ethandl.dev/dwl
Log | Files | Refs | README | LICENSE

util.c (795B)

      1 /* See LICENSE.dwm file for copyright and license details. */
      2 #include <stdarg.h>
      3 #include <stdio.h>
      4 #include <stdlib.h>
      5 #include <string.h>
      6 #include <fcntl.h>
      7 
      8 #include "util.h"
      9 
     10 void
     11 die(const char *fmt, ...) {
     12 	va_list ap;
     13 
     14 	va_start(ap, fmt);
     15 	vfprintf(stderr, fmt, ap);
     16 	va_end(ap);
     17 
     18 	if (fmt[0] && fmt[strlen(fmt)-1] == ':') {
     19 		fputc(' ', stderr);
     20 		perror(NULL);
     21 	} else {
     22 		fputc('\n', stderr);
     23 	}
     24 
     25 	exit(1);
     26 }
     27 
     28 void *
     29 ecalloc(size_t nmemb, size_t size)
     30 {
     31 	void *p;
     32 
     33 	if (!(p = calloc(nmemb, size)))
     34 		die("calloc:");
     35 	return p;
     36 }
     37 
     38 int
     39 fd_set_nonblock(int fd) {
     40 	int flags = fcntl(fd, F_GETFL);
     41     if (flags < 0) {
     42 		perror("fcntl(F_GETFL):");
     43         return -1;
     44     }
     45     if (fcntl(fd, F_SETFL, flags | O_NONBLOCK) < 0) {
     46 		perror("fcntl(F_SETFL):");
     47 		return -1;
     48     }
     49 
     50 	return 0;
     51 }