die.h

   1 /*
   2  * netsniff-ng - the packet sniffing beast
   3  * By Daniel Borkmann <daniel@netsniff-ng.org>
   4  * Copyright 2009, 2010 Daniel Borkmann.
   5  * Subject to the GPL, version 2.
   6  */
   7
   8 #ifndef DIE_H
   9 #define DIE_H
  10
  11 #include <stdio.h>
  12 #include <stdlib.h>
  13 #include <stdarg.h>
  14 #include <string.h>
  15 #include <errno.h>
  16 #include <unistd.h>
  17 #include <syslog.h>
  18
  19 #include "built_in.h"
  20
  21 static inline void panic(const char *format, ...)  __check_format_printf(1, 2);
  22 static inline void syslog_panic(const char *format,
  23                                 ...) __check_format_printf(1, 2);
  24 static inline void syslog_maybe(int may, int priority,
  25                                 const char *format, ...) __check_format_printf(3, 4);
  26
  27 static inline void die(void)
  28 {
  29         exit(EXIT_FAILURE);
  30 }
  31
  32 static inline void _die(void)
  33 {
  34         _exit(EXIT_FAILURE);
  35 }
  36
  37 static inline void panic(const char *format, ...)
  38 {
  39         va_list vl;
  40
  41         va_start(vl, format);
  42         vfprintf(stderr, format, vl);
  43         va_end(vl);
  44
  45         die();
  46 }
  47
  48 static inline void syslog_panic(const char *format, ...)
  49 {
  50         va_list vl;
  51
  52         va_start(vl, format);
  53         vsyslog(LOG_ERR, format, vl);
  54         va_end(vl);
  55
  56         die();
  57 }
  58
  59 static inline void syslog_maybe(int maybe, int priority, const char *format, ...)
  60 {
  61         if (!!maybe) {
  62                 va_list vl;
  63
  64                 va_start(vl, format);
  65                 vsyslog(priority, format, vl);
  66                 va_end(vl);
  67         }
  68 }
  69
  70 #endif /* DIE_H */