die.h

   1 #ifndef DIE_H
   2 #define DIE_H
   3
   4 #include <stdio.h>
   5 #include <stdlib.h>
   6 #include <stdarg.h>
   7 #include <stdbool.h>
   8 #include <string.h>
   9 #include <errno.h>
  10 #include <unistd.h>
  11 #include <syslog.h>
  12
  13 #include "built_in.h"
  14
  15 static inline void panic(const char *format, ...)  __check_format_printf(1, 2);
  16 static inline void syslog_panic(const char *format,
  17                                 ...) __check_format_printf(1, 2);
  18 static inline void syslog_maybe(bool cond, int priority,
  19                                 const char *format, ...) __check_format_printf(3, 4);
  20
  21 static inline void __noreturn __die_hard(void)
  22 {
  23         exit(EXIT_FAILURE);
  24 }
  25
  26 static inline void __noreturn __die_harder(void)
  27 {
  28         _exit(EXIT_FAILURE);
  29 }
  30
  31 static inline void __noreturn die(void)
  32 {
  33         __die_hard();
  34 }
  35
  36 static inline void __noreturn _die(void)
  37 {
  38         __die_harder();
  39 }
  40
  41 static inline void __noreturn panic(const char *format, ...)
  42 {
  43         va_list vl;
  44
  45         va_start(vl, format);
  46         vfprintf(stderr, format, vl);
  47         va_end(vl);
  48
  49         die();
  50 }
  51
  52 static inline void __noreturn syslog_panic(const char *format, ...)
  53 {
  54         va_list vl;
  55
  56         va_start(vl, format);
  57         vsyslog(LOG_ERR, format, vl);
  58         va_end(vl);
  59
  60         die();
  61 }
  62
  63 static inline void syslog_maybe(bool cond, int priority,
  64                                 const char *format, ...)
  65 {
  66         if (cond) {
  67                 va_list vl;
  68
  69                 va_start(vl, format);
  70                 vsyslog(priority, format, vl);
  71                 va_end(vl);
  72         }
  73 }
  74
  75 #endif /* DIE_H */