cookie.c

   1 #define _GNU_SOURCE
   2 #include <stdio.h>
   3 #include <string.h>
   4 #include <syslog.h>
   5 #include <sys/types.h>
   6
   7 #include "cookie.h"
   8
   9 static char const *priov[] = {
  10         [LOG_EMERG]     =       "EMERG:",
  11         [LOG_ALERT]     =       "ALERT:",
  12         [LOG_CRIT]      =       "CRIT:",
  13         [LOG_ERR]       =       "ERR:",
  14         [LOG_WARNING]   =       "WARNING:",
  15         [LOG_NOTICE]    =       "NOTICE:",
  16         [LOG_INFO]      =       "INFO:",
  17         [LOG_DEBUG]     =       "DEBUG:",
  18 };
  19
  20 static ssize_t cookie_writer(void *cookie, char const *data, size_t leng)
  21 {
  22         int prio = LOG_DEBUG, len;
  23
  24         do {
  25                 len = strlen(priov[prio]);
  26         } while (memcmp(data, priov[prio], len) && --prio >= 0);
  27
  28         if (prio < 0) {
  29                 prio = LOG_INFO;
  30         } else {
  31                 data += len;
  32                 leng -= len;
  33         }
  34
  35         while (*data == ' ') {
  36                  ++data;
  37                 --leng;
  38         }
  39
  40         syslog(prio, "%.*s", (int) leng, data);
  41
  42         return leng;
  43 }
  44
  45 static cookie_io_functions_t cookie_log = {
  46         .write          =       cookie_writer,
  47 };
  48
  49 void to_std_log(FILE **fp)
  50 {
  51         setvbuf(*fp = fopencookie(NULL, "w", cookie_log), NULL, _IOLBF, 0);
  52 }