util.c

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