src/die.h

   1 /*
   2  * transsip - the telephony network
   3  * By Daniel Borkmann <daniel@transsip.org>
   4  * Copyright 2011 Daniel Borkmann <dborkma@tik.ee.ethz.ch>,
   5  * Swiss federal institute of technology (ETH Zurich)
   6  * Subject to the GPL, version 2.
   7  */
   8
   9 #ifndef DIE_H
  10 #define DIE_H
  11
  12 #include <stdio.h>
  13 #include <stdlib.h>
  14 #include <stdarg.h>
  15 #include <string.h>
  16 #include <errno.h>
  17 #include <syslog.h>
  18
  19 #include "compiler.h"
  20
  21 static inline void error_and_die(int status, char *msg, ...)
  22 {
  23         va_list vl;
  24         va_start(vl, msg);
  25         vfprintf(stderr, msg, vl);
  26         va_end(vl);
  27         exit(status);
  28 }
  29
  30 static inline void die(void)
  31 {
  32         exit(EXIT_FAILURE);
  33 }
  34
  35 static inline void panic(char *msg, ...)
  36 {
  37         va_list vl;
  38         va_start(vl, msg);
  39         vfprintf(stderr, msg, vl);
  40         va_end(vl);
  41         die();
  42 }
  43
  44 #define syslog_panic(msg...)            \
  45 do {                                    \
  46         syslog(LOG_ERR, ##msg);         \
  47         die();                          \
  48 } while (0)
  49
  50 static inline void whine(char *msg, ...)
  51 {
  52         va_list vl;
  53         va_start(vl, msg);
  54         vfprintf(stderr, msg, vl);
  55         va_end(vl);
  56 }
  57
  58 #define syslog_whine(msg...)            \
  59 do {                                    \
  60         syslog(LOG_WARNING, ##msg);     \
  61 } while (0)
  62
  63 static inline void info(char *msg, ...)
  64 {
  65         va_list vl;
  66         va_start(vl, msg);
  67         vfprintf(stdout, msg, vl);
  68         va_end(vl);
  69 }
  70
  71 #define syslog_info(msg...)             \
  72 do {                                    \
  73         syslog(LOG_INFO, ##msg);        \
  74 } while (0)
  75
  76 static inline void BUG(char *msg, ...)
  77 {
  78         va_list vl;
  79         whine("BUG: ");
  80         va_start(vl, msg);
  81         vfprintf(stderr, msg, vl);
  82         va_end(vl);
  83         die();
  84 }
  85
  86 static inline void BUG_ON(int cond, char *msg, ...)
  87 {
  88         va_list vl;
  89         if (unlikely(cond)) {
  90                 whine("BUG: ");
  91                 va_start(vl, msg);
  92                 vfprintf(stderr, msg, vl);
  93                 va_end(vl);
  94                 die();
  95         }
  96 }
  97
  98 #ifdef _DEBUG_
  99 static inline void debug(char *msg, ...)
 100 {
 101         va_list vl;
 102         va_start(vl, msg);
 103         vfprintf(stderr, msg, vl);
 104         va_end(vl);
 105         fflush(stderr);
 106 }
 107 #else
 108 static inline void debug(char *msg, ...)
 109 {
 110         /* NOP */
 111 }
 112 #endif /* _DEBUG_ */
 113
 114 static inline void puke_and_die(int status, char *msg, ...)
 115 {
 116         va_list vl;
 117         va_start(vl, msg);
 118         vfprintf(stderr, msg, vl);
 119         va_end(vl);
 120
 121         fprintf(stderr, ": %s\n", strerror(errno));
 122
 123         exit(status);
 124 }
 125
 126 #endif /* DIE_H */