1 /*---------------------------------------------------------------
2 * Copyright (c) 1999,2000,2001,2002,2003
3 * The Board of Trustees of the University of Illinois
5 *---------------------------------------------------------------
6 * Permission is hereby granted, free of charge, to any person
7 * obtaining a copy of this software (Iperf) and associated
8 * documentation files (the "Software"), to deal in the Software
9 * without restriction, including without limitation the
10 * rights to use, copy, modify, merge, publish, distribute,
11 * sublicense, and/or sell copies of the Software, and to permit
12 * persons to whom the Software is furnished to do
13 * so, subject to the following conditions:
16 * Redistributions of source code must retain the above
17 * copyright notice, this list of conditions and
18 * the following disclaimers.
21 * Redistributions in binary form must reproduce the above
22 * copyright notice, this list of conditions and the following
23 * disclaimers in the documentation and/or other materials
24 * provided with the distribution.
27 * Neither the names of the University of Illinois, NCSA,
28 * nor the names of its contributors may be used to endorse
29 * or promote products derived from this Software without
30 * specific prior written permission.
32 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
33 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
34 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
35 * NONINFRINGEMENT. IN NO EVENT SHALL THE CONTIBUTORS OR COPYRIGHT
36 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
37 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
38 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE
39 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
40 * ________________________________________________________________
41 * National Laboratory for Applied Network Research
42 * National Center for Supercomputing Applications
43 * University of Illinois at Urbana-Champaign
44 * http://www.ncsa.uiuc.edu
45 * ________________________________________________________________
48 * by Ajay Tirumala <tirumala@ncsa.uiuc.edu>
49 * and Mark Gates <mgates@nlanr.net>
50 * ------------------------------------------------------------------- */
56 #include "SocketAddr.h"
63 /* return the port of @ss, -1 if undefined */
64 int SockAddr_port(struct sockaddr_storage *ss)
66 if (ss->ss_family == AF_INET)
67 return ntohs(((struct sockaddr_in *)ss)->sin_port);
68 else if (ss->ss_family == AF_INET6)
69 return ntohs(((struct sockaddr_in6 *)ss)->sin6_port);
73 /* -------------------------------------------------------------------
74 * Print socket name into output (must be INET6_ADDRSTRLEN long).
75 * This one works around the quirk of inet_ntop/getaddrinfo to represent
76 * print IPv4-mapped-IPv6 addresses as sockaddr_in6 (::FFFF:x.x.x.x).
77 * Make the #ifndef an `#ifdef' to disable this conversion.
78 * ------------------------------------------------------------------- */
79 const char *SockAddr_name(struct sockaddr_storage *ss, char *hbuf, size_t hbuflen)
81 int af = ss->ss_family;
84 if (ss->ss_family == AF_INET)
85 ptr = &((struct sockaddr_in *)ss)->sin_addr;
86 else if (ss->ss_family == AF_INET6) {
87 const struct in6_addr *v6_addr;
89 ptr = v6_addr = &((struct sockaddr_in6 *)ss)->sin6_addr;
90 #ifndef I_WANT_V4_MAPPED_IN_MY_OUTPUT
91 if (IN6_IS_ADDR_V4MAPPED(v6_addr)) {
94 // extract the IPv4 address from the last 4 bytes
95 memcpy(&ia.s_addr, &v6_addr->s6_addr[12], 4);
101 return NULL; // undetermined family (e.g. AF_UNSPEC)
103 return inet_ntop(af, ptr, hbuf, hbuflen);
106 static int SockAddr_AF_are_Equal(struct sockaddr_storage *first, struct sockaddr_storage *second)
108 return first->ss_family == second->ss_family;
111 /* -------------------------------------------------------------------
112 * Compare two sockaddrs and return true if the hosts are equal
113 * ------------------------------------------------------------------- */
114 int SockAddr_Hostare_Equal(struct sockaddr_storage *first, struct sockaddr_storage *second)
116 if (!SockAddr_AF_are_Equal(first, second))
118 if (first->ss_family == AF_INET)
119 return !memcmp(&((struct sockaddr_in *)first)->sin_addr,
120 &((struct sockaddr_in *)second)->sin_addr, sizeof(struct in_addr));
121 if (first->ss_family == AF_INET6)
122 return !memcmp(&((struct sockaddr_in6 *)first)->sin6_addr,
123 &((struct sockaddr_in6 *)second)->sin6_addr, sizeof(struct in6_addr));
127 /* -------------------------------------------------------------------
128 * Compare two socket structs and return true if they are equal
129 * ------------------------------------------------------------------- */
130 int SockAddr_are_Equal(struct sockaddr_storage *first, struct sockaddr_storage *second)
132 if (!SockAddr_Hostare_Equal(first, second))
134 if (first->ss_family == AF_INET)
135 return ((struct sockaddr_in*)first)->sin_port == ((struct sockaddr_in*)second)->sin_port;
136 if (first->ss_family == AF_INET6)
137 return (((struct sockaddr_in6*)first)->sin6_port == ((struct sockaddr_in6*)second)->sin6_port);
142 } /* end extern "C" */