4 * This file includes getnameinfo().
5 * These funtions are defined in rfc2133.
7 * But these functions are not implemented correctly. The minimum subset
8 * is implemented for ssh use only. For exapmle, this routine assumes
9 * that ai_family is AF_INET. Don't use it for another purpose.
11 * In the case not using 'configure --enable-ipv6', this getnameinfo.c
12 * will be used if you have broken getnameinfo or no getnameinfo.
18 #ifndef HAVE_GETNAMEINFO
20 getnameinfo(sa, salen, host, hostlen, serv, servlen, flags)
21 const struct sockaddr *sa;
29 struct sockaddr_in *sin = (struct sockaddr_in *)sa;
34 sprintf(tmpserv, "%d", ntohs(sin->sin_port));
35 if (strlen(tmpserv) > servlen)
38 strcpy(serv, tmpserv);
41 if (flags & NI_NUMERICHOST)
42 if (strlen(inet_ntoa(sin->sin_addr)) > hostlen)
45 strcpy(host, inet_ntoa(sin->sin_addr));
49 if (NULL != (hp = gethostbyaddr((char *)&sin->sin_addr,
50 sizeof(struct in_addr), AF_INET)))
51 if (strlen(hp->h_name) > hostlen)
54 strcpy(host, hp->h_name);
61 #endif /* !HAVE_GETNAMEINFO */