src/libloc-private.h

   1 /*
   2         libloc - A library to determine the location of someone on the Internet
   3
   4         Copyright (C) 2017 IPFire Development Team <info@ipfire.org>
   5
   6         This library is free software; you can redistribute it and/or
   7         modify it under the terms of the GNU Lesser General Public
   8         License as published by the Free Software Foundation; either
   9         version 2.1 of the License, or (at your option) any later version.
  10
  11         This library is distributed in the hope that it will be useful,
  12         but WITHOUT ANY WARRANTY; without even the implied warranty of
  13         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14         Lesser General Public License for more details.
  15 */
  16
  17 #ifndef LIBLOC_PRIVATE_H
  18 #define LIBLOC_PRIVATE_H
  19
  20 #include <stdbool.h>
  21 #include <syslog.h>
  22
  23 #include <loc/libloc.h>
  24
  25 static inline void __attribute__((always_inline, format(printf, 2, 3)))
  26 loc_log_null(struct loc_ctx *ctx, const char *format, ...) {}
  27
  28 #define loc_log_cond(ctx, prio, arg...) \
  29         do { \
  30                 if (loc_get_log_priority(ctx) >= prio) \
  31                         loc_log(ctx, prio, __FILE__, __LINE__, __FUNCTION__, ## arg); \
  32         } while (0)
  33
  34 #ifdef ENABLE_DEBUG
  35 #  define DEBUG(ctx, arg...) loc_log_cond(ctx, LOG_DEBUG, ## arg)
  36 #else
  37 #  define DEBUG(ctx, arg...) loc_log_null(ctx, ## arg)
  38 #endif
  39
  40 #define INFO(ctx, arg...) loc_log_cond(ctx, LOG_INFO, ## arg)
  41 #define ERROR(ctx, arg...) loc_log_cond(ctx, LOG_ERR, ## arg)
  42
  43 #ifndef HAVE_SECURE_GETENV
  44 #  ifdef HAVE___SECURE_GETENV
  45 #    define secure_getenv __secure_getenv
  46 #  else
  47 #    error neither secure_getenv nor __secure_getenv is available
  48 #  endif
  49 #endif
  50
  51 #define LOC_EXPORT __attribute__ ((visibility("default")))
  52
  53 void loc_log(struct loc_ctx *ctx,
  54         int priority, const char *file, int line, const char *fn,
  55         const char *format, ...) __attribute__((format(printf, 6, 7)));
  56
  57 #endif