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53 * @(#)gethostnamadr.c 8.1 (Berkeley) 6/4/93
54 * $FreeBSD: src/lib/libc/net/gethostbyht.c,v 1.12 1999/08/28 00:00:05 peter Exp $
55 * $DragonFly: src/lib/libc/net/gethostbyht.c,v 1.4 2005/01/31 22:29:33 dillon Exp $
58 #include <sys/param.h>
59 #include <sys/socket.h>
60 #include <netinet/in.h>
61 #include <arpa/inet.h>
66 #include <arpa/nameser.h> /* XXX */
67 #include <resolv.h> /* XXX */
71 static struct hostent host;
72 static char *host_aliases[MAXALIASES];
73 static char hostbuf[BUFSIZ+1];
74 static FILE *hostf = NULL;
75 static u_int32_t host_addr[4]; /* IPv4 or IPv6 */
76 static char *h_addr_ptrs[2];
77 static int stayopen = 0;
84 hostf = fopen(_PATH_HOSTS, "r" );
93 if (hostf && !stayopen) {
106 if (!hostf && !(hostf = fopen(_PATH_HOSTS, "r" ))) {
107 h_errno = NETDB_INTERNAL;
111 if (!(p = fgets(hostbuf, sizeof hostbuf, hostf))) {
112 h_errno = HOST_NOT_FOUND;
117 if (!(cp = strpbrk(p, "#\n")))
120 if (!(cp = strpbrk(p, " \t")))
123 if (inet_pton(AF_INET6, p, host_addr) > 0) {
126 } else if (inet_pton(AF_INET, p, host_addr) > 0) {
127 if (_res.options & RES_USE_INET6) {
128 _map_v4v6_address((char*)host_addr, (char*)host_addr);
138 h_addr_ptrs[0] = (char *)host_addr;
139 h_addr_ptrs[1] = NULL;
140 host.h_addr_list = h_addr_ptrs;
142 host.h_addrtype = af;
143 while (*cp == ' ' || *cp == '\t')
146 q = host.h_aliases = host_aliases;
147 if ((cp = strpbrk(cp, " \t")) != NULL)
150 if (*cp == ' ' || *cp == '\t') {
154 if (q < &host_aliases[MAXALIASES - 1])
156 if ((cp = strpbrk(cp, " \t")) != NULL)
160 h_errno = NETDB_SUCCESS;
165 _gethostbyhtname(name, af)
173 while ((p = gethostent()) != NULL) {
174 if (p->h_addrtype != af)
176 if (strcasecmp(p->h_name, name) == 0)
178 for (cp = p->h_aliases; *cp != 0; cp++)
179 if (strcasecmp(*cp, name) == 0)
188 _gethostbyhtaddr(addr, len, af)
195 while ((p = gethostent()) != NULL)
196 if (p->h_addrtype == af && !bcmp(p->h_addr, addr, len))