Add missing IPv6 address definitions.

[mirror_edk2.git] / StdLib / BsdSocketLib / gethostbynis.c

/*-\r
 * Copyright (c) 1994, Garrett Wollman\r
 *\r
 * Redistribution and use in source and binary forms, with or without\r
 * modification, are permitted provided that the following conditions\r
 * are met:\r
 * 1. Redistributions of source code must retain the above copyright\r
 *    notice, this list of conditions and the following disclaimer.\r
 * 2. Redistributions in binary form must reproduce the above copyright\r
 *    notice, this list of conditions and the following disclaimer in the\r
 *    documentation and/or other materials provided with the distribution.\r
 *\r
 * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS ``AS IS'' AND\r
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE\r
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL\r
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS\r
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)\r
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT\r
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY\r
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF\r
 * SUCH DAMAGE.\r
 */\r
\r
#if defined(LIBC_SCCS) && !defined(lint)\r
static char sccsid[] = "@(#)$Id: gethostbynis.c,v 1.1.1.1 2003/11/19 01:51:27 kyu3 Exp $";\r
static char rcsid[] = "$Id: gethostbynis.c,v 1.1.1.1 2003/11/19 01:51:27 kyu3 Exp $";\r
#endif /* LIBC_SCCS and not lint */\r
\r
#include <sys/param.h>\r
#include <sys/socket.h>\r
#include <netinet/in.h>\r
#include <arpa/inet.h>\r
#include <netdb.h>\r
#include <stdio.h>\r
#include <stdlib.h>\r
#include <ctype.h>\r
#include <errno.h>\r
#include <string.h>\r
#ifdef YP\r
#include <rpc/rpc.h>\r
#include <rpcsvc/yp_prot.h>\r
#include <rpcsvc/ypclnt.h>\r
#endif\r
\r
#define	MAXALIASES	35\r
#define	MAXADDRS	35\r
\r
#ifdef YP\r
static char *host_aliases[MAXALIASES];\r
static char hostaddr[MAXADDRS];\r
static char *host_addrs[2];\r
#endif /* YP */\r
\r
static struct hostent *\r
_gethostbynis(const char *name, char *map, int af)\r
{\r
#ifdef YP\r
	register char *cp, **q;\r
	char *result;\r
	int resultlen;\r
	static struct hostent h;\r
	static char *domain = (char *)NULL;\r
	static char ypbuf[YPMAXRECORD + 2];\r
\r
	switch(af) {\r
	case AF_INET:\r
		break;\r
	default:\r
	case AF_INET6:\r
		errno = EAFNOSUPPORT;\r
		return NULL;\r
	}\r
\r
	if (domain == (char *)NULL)\r
		if (yp_get_default_domain (&domain))\r
			return ((struct hostent *)NULL);\r
\r
	if (yp_match(domain, map, name, strlen(name), &result, &resultlen))\r
		return ((struct hostent *)NULL);\r
\r
	/* avoid potential memory leak */\r
	bcopy((char *)result, (char *)&ypbuf, resultlen);\r
	ypbuf[resultlen] = '\0';\r
	free(result);\r
	result = (char *)&ypbuf;\r
\r
	if ((cp = index(result, '\n')))\r
		*cp = '\0';\r
\r
	cp = strpbrk(result, " \t");\r
	*cp++ = '\0';\r
	h.h_addr_list = host_addrs;\r
	h.h_addr = hostaddr;\r
	*((u_long *)h.h_addr) = inet_addr(result);\r
	h.h_length = sizeof(u_long);\r
	h.h_addrtype = AF_INET;\r
	while (*cp == ' ' || *cp == '\t')\r
		cp++;\r
	h.h_name = cp;\r
	q = h.h_aliases = host_aliases;\r
	cp = strpbrk(cp, " \t");\r
	if (cp != NULL)\r
		*cp++ = '\0';\r
	while (cp && *cp) {\r
		if (*cp == ' ' || *cp == '\t') {\r
			cp++;\r
			continue;\r
		}\r
		if (q < &host_aliases[MAXALIASES - 1])\r
			*q++ = cp;\r
		cp = strpbrk(cp, " \t");\r
		if (cp != NULL)\r
			*cp++ = '\0';\r
	}\r
	*q = NULL;\r
	return (&h);\r
#else\r
	return (NULL);\r
#endif /* YP */\r
}\r
\r
struct hostent *\r
_gethostbynisname(const char *name, int af)\r
{\r
	return _gethostbynis(name, "hosts.byname", af);\r
}\r
\r
struct hostent *\r
_gethostbynisaddr(const char *addr, int len, int af)\r
{\r
	return _gethostbynis(inet_ntoa(*(struct in_addr *)addr),"hosts.byaddr", af);\r
}\r