client/util.c

   1 /*
   2  *      BIRD Client -- Utility Functions
   3  *
   4  *      (c) 1999--2000 Martin Mares <mj@ucw.cz>
   5  *
   6  *      Can be freely distributed and used under the terms of the GNU GPL.
   7  */
   8
   9 #include <stdio.h>
  10 #include <stdlib.h>
  11 #include <stdarg.h>
  12
  13 #include "nest/bird.h"
  14 #include "lib/string.h"
  15 #include "client/client.h"
  16
  17 /* Client versions of logging functions */
  18
  19 static void
  20 vlog(const char *msg, va_list args)
  21 {
  22   char buf[1024];
  23
  24   int n = vsnprintf(buf, sizeof(buf), msg, args);
  25   if (n < 0)
  26     snprintf(buf, sizeof(buf), "???");
  27   if (n >= sizeof(buf))
  28     snprintf(buf + sizeof(buf) - 100, 100, " ... <too long>");
  29   fputs(buf, stderr);
  30   fputc('\n', stderr);
  31 }
  32
  33 void
  34 bug(const char *msg, ...)
  35 {
  36   va_list args;
  37
  38   va_start(args, msg);
  39   cleanup();
  40   fputs("Internal error: ", stderr);
  41   vlog(msg, args);
  42   vfprintf(stderr, msg, args);
  43   exit(1);
  44 }
  45
  46 void
  47 die(const char *msg, ...)
  48 {
  49   va_list args;
  50
  51   va_start(args, msg);
  52   cleanup();
  53   vlog(msg, args);
  54   exit(1);
  55 }