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 die(const char *fmt, ...)
  12 {
  13         va_list ap;
  14         int saved_errno;
  15
  16         saved_errno = errno;
  17
  18         va_start(ap, fmt);
  19         vfprintf(stderr, fmt, ap);
  20         va_end(ap);
  21
  22         if (fmt[0] && fmt[strlen(fmt)-1] == ':')
  23                 fprintf(stderr, " %s", strerror(saved_errno));
  24         fputc('\n', stderr);
  25
  26         exit(1);
  27 }
  28
  29 void *
  30 ecalloc(size_t nmemb, size_t size)
  31 {
  32         void *p;
  33
  34         if (!(p = calloc(nmemb, size)))
  35                 die("calloc:");
  36         return p;
  37 }