2 * Copyright (c) 1999 - 2001 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
43 char *host, size_t hostlen,
44 char *serv, size_t servlen,
48 if (flags & NI_NUMERICHOST) {
49 if (inet_ntop (af, addr, host, hostlen) == NULL)
52 struct hostent *he = gethostbyaddr (addr,
56 strlcpy (host, hostent_find_fqdn(he), hostlen);
57 if (flags & NI_NOFQDN) {
58 char *dot = strchr (host, '.');
62 } else if (flags & NI_NAMEREQD) {
64 } else if (inet_ntop (af, addr, host, hostlen) == NULL)
70 if (flags & NI_NUMERICSERV) {
71 snprintf (serv, servlen, "%u", ntohs(port));
73 const char *proto = "tcp";
79 se = getservbyport (port, proto);
81 snprintf (serv, servlen, "%u", ntohs(port));
83 strlcpy (serv, se->s_name, servlen);
94 ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL
95 getnameinfo(const struct sockaddr *sa, socklen_t salen,
96 char *host, size_t hostlen,
97 char *serv, size_t servlen,
100 switch (sa->sa_family) {
103 const struct sockaddr_in6 *sin6 = (const struct sockaddr_in6 *)sa;
105 return doit (AF_INET6, &sin6->sin6_addr, sizeof(sin6->sin6_addr),
113 const struct sockaddr_in *sin4 = (const struct sockaddr_in *)sa;
115 return doit (AF_INET, &sin4->sin_addr, sizeof(sin4->sin_addr),