Fawkes API  Fawkes Development Version
addr_size.h
1 
2 /***************************************************************************
3  * addr_comp.h - address comparison
4  *
5  * Created: Tue Dec 13 15:17:43 2016
6  * Copyright 2006-2016 Tim Niemueller [www.niemueller.de]
7  *
8  ****************************************************************************/
9 
10 /* This program is free software; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License as published by
12  * the Free Software Foundation; either version 2 of the License, or
13  * (at your option) any later version. A runtime exception applies to
14  * this software (see LICENSE.GPL_WRE file mentioned below for details).
15  *
16  * This program is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19  * GNU Library General Public License for more details.
20  *
21  * Read the full text in the LICENSE.GPL_WRE file in the doc directory.
22  */
23 
24 #ifndef __NETCOMM_UTILS_ADDR_SIZE_H_
25 #define __NETCOMM_UTILS_ADDR_SIZE_H_
26 
27 #include <netinet/in.h>
28 
29 namespace fawkes {
30 #if 0 /* just to make Emacs auto-indent happy */
31 }
32 #endif
33 
34 /** Get canonical size of sockaddr structure.
35  * @param a sockaddr_in or sockaddr_in6 structure with properly set
36  * address family field.
37  * @return size in bytes of struct
38  */
39 inline size_t
40 sock_addr_size(const struct sockaddr *a)
41 {
42  if (a->sa_family == AF_INET) {
43  return sizeof(sockaddr_in);
44  } else if (a->sa_family == AF_INET6) {
45  return sizeof(sockaddr_in6);
46  } else {
47  return 0;
48  }
49 }
50 
51 } // end namespace fawkes
52 
53 #endif
Fawkes library namespace.
size_t sock_addr_size(const struct sockaddr *a)
Get canonical size of sockaddr structure.
Definition: addr_size.h:40