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Sources/mdnsd/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 #include <stdint.h>
 18 #include <time.h>
 19 
 20 #define DBG(level, fmt, ...) do { \
 21         if (debug >= level) \
 22                 fprintf(stderr, "mdnsd: %s (%d): " fmt, __func__, __LINE__, ## __VA_ARGS__); \
 23         } while (0)
 24 
 25 #define MDNS_BUF_LEN    (8 * 1024)
 26 #define HOSTNAME_LEN    256
 27 
 28 extern int debug;
 29 extern uint8_t mdns_buf[MDNS_BUF_LEN];
 30 
 31 /**
 32  * The first label of a host's fully qualified domain name
 33  *
 34  * E.g. just "example" for the domain name example.local.
 35  */
 36 extern char umdns_host_label[HOSTNAME_LEN];
 37 
 38 extern char mdns_hostname_local[HOSTNAME_LEN + 6];
 39 
 40 extern void get_hostname(void);
 41 extern uint32_t rand_time_delta(uint32_t t);
 42 extern time_t monotonic_time(void);
 43 
 44 #endif
 45 

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