util.h

   1 /*
   2  * Copyright (C) 2014 John Crispin <blogic@openwrt.org>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU Lesser General Public License version 2.1
   6  * as published by the Free Software Foundation
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  */
  13
  14 #ifndef _UTIL_H__
  15 #define _UTIL_H__
  16
  17 #define DBG(level, fmt, ...) do { \
  18         if (debug >= level) \
  19                 fprintf(stderr, "mdnsd: %s (%d): " fmt, __func__, __LINE__, ## __VA_ARGS__); \
  20         } while (0)
  21
  22 extern int debug;
  23 extern struct uloop_fd listener;
  24 extern const char *iface_ip;
  25 extern int iface_index;
  26
  27 void *memdup(const void *d, int l);
  28
  29 extern void signal_setup(void);
  30 extern int socket_setup(int fd, const char *ip);
  31 extern char* get_hostname(void);
  32 extern const char* get_iface_ipv4(const char *ifname);
  33 extern int get_iface_index(const char *ifname);
  34 extern uint32_t rand_time_delta(uint32_t t);
  35
  36 #endif