2 * Copyright (c) 1995, 1996, 1997, 1998 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
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7 * modification, are permitted provided that the following conditions
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36 RCSID("$Id: inaddr2str.c,v 1.12 1999/12/02 16:58:46 joda Exp $");
41 #ifdef HAVE_SYS_TYPES_H
42 #include <sys/types.h>
44 #ifdef HAVE_SYS_SOCKET_H
45 #include <sys/socket.h>
47 #ifdef HAVE_NETINET_IN_H
48 #include <netinet/in.h>
50 #ifdef HAVE_NETINET_IN6_H
51 #include <netinet/in6.h>
53 #ifdef HAVE_NETINET6_IN6_H
54 #include <netinet6/in6.h>
57 #ifdef HAVE_ARPA_INET_H
58 #include <arpa/inet.h>
66 * Get a verified name for `addr'.
67 * If unable to find it in the DNS, return x.y.z.a
71 inaddr2str(struct in_addr addr, char *s, size_t len)
76 h = roken_gethostbyaddr ((const char *)&addr, sizeof(addr), AF_INET);
78 h = roken_gethostbyname (h->h_name);
80 for(p = h->h_addr_list;
83 if (memcmp (*p, &addr, sizeof(addr)) == 0) {
84 strlcpy (s, h->h_name, len);
88 strlcpy (s, inet_ntoa (addr), len);