Renamed the misleading libc/netbsd directory to libc/dns.

Bug: 13219633
Change-Id: Ide43add0b90b3081cc709a22d1ff1f59d65f1104

1 files changed, 0 insertions, 459 deletions

diff --git a/libc/netbsd/net/getnameinfo.c b/libc/netbsd/net/getnameinfo.c
deleted file mode 100644
index d6c4488..0000000
--- a/libc/netbsd/net/getnameinfo.c
+++ /dev/null
@@ -1,459 +0,0 @@
-/*	$NetBSD: getnameinfo.c,v 1.53 2012/09/26 23:13:00 christos Exp $	*/
-/*	$KAME: getnameinfo.c,v 1.45 2000/09/25 22:43:56 itojun Exp $	*/
-
-/*
- * Copyright (c) 2000 Ben Harris.
- * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the project nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-/*
- * Issues to be discussed:
- * - Thread safe-ness must be checked
- * - RFC2553 says that we should raise error on short buffer.  X/Open says
- *   we need to truncate the result.  We obey RFC2553 (and X/Open should be
- *   modified).  ipngwg rough consensus seems to follow RFC2553.
- * - What is "local" in NI_FQDN?
- * - NI_NAMEREQD and NI_NUMERICHOST conflict with each other.
- * - (KAME extension) always attach textual scopeid (fe80::1%lo0), if
- *   sin6_scope_id is filled - standardization status?
- *   XXX breaks backward compat for code that expects no scopeid.
- *   beware on merge.
- */
-
-#include <sys/cdefs.h>
-#if defined(LIBC_SCCS) && !defined(lint)
-__RCSID("$NetBSD: getnameinfo.c,v 1.53 2012/09/26 23:13:00 christos Exp $");
-#endif /* LIBC_SCCS and not lint */
-
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <sys/un.h>
-#include <net/if.h>
-#include <net/if_ieee1394.h>
-#include <net/if_types.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <assert.h>
-#include <limits.h>
-#include <netdb.h>
-#include "arpa_nameser.h"
-#include "resolv_private.h"
-#include <sys/system_properties.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <errno.h>
-#include <stddef.h>
-#include <string.h>
-
-static const struct afd {
-	int		a_af;
-	socklen_t	a_addrlen;
-	socklen_t	a_socklen;
-	int		a_off;
-} afdl [] = {
-#ifdef INET6
-	{PF_INET6, sizeof(struct in6_addr), sizeof(struct sockaddr_in6),
-		offsetof(struct sockaddr_in6, sin6_addr)},
-#endif
-	{PF_INET, sizeof(struct in_addr), sizeof(struct sockaddr_in),
-		offsetof(struct sockaddr_in, sin_addr)},
-	{0, 0, 0, 0},
-};
-
-struct sockinet {
-	u_char	si_len;
-	u_char	si_family;
-	u_short	si_port;
-};
-
-static int getnameinfo_inet(const struct sockaddr *, socklen_t, char *,
-    socklen_t, char *, socklen_t, int, const char*, int);
-#ifdef INET6
-static int ip6_parsenumeric(const struct sockaddr *, const char *, char *,
-				 socklen_t, int);
-static int ip6_sa2str(const struct sockaddr_in6 *, char *, size_t, int);
-#endif
-static int getnameinfo_local(const struct sockaddr *, socklen_t, char *,
-    socklen_t, char *, socklen_t, int);
-
-/*
- * Top-level getnameinfo() code.  Look at the address family, and pick an
- * appropriate function to call.
- */
-int getnameinfo(const struct sockaddr* sa, socklen_t salen, char* host, size_t hostlen, char* serv, size_t servlen, int flags)
-{
-	return android_getnameinfoforiface(sa, salen, host, hostlen, serv, servlen, flags, NULL, 0);
-}
-
-int android_getnameinfoforiface(const struct sockaddr* sa, socklen_t salen, char* host, size_t hostlen, char* serv, size_t servlen, int flags, const char* iface, int mark)
-{
-	switch (sa->sa_family) {
-	case AF_INET:
-	case AF_INET6:
-		return getnameinfo_inet(sa, salen, host, hostlen,
-				serv, servlen, flags, iface, mark);
-	case AF_LOCAL:
-		return getnameinfo_local(sa, salen, host, hostlen,
-		    serv, servlen, flags);
-	default:
-		return EAI_FAMILY;
-	}
-}
-
-/*
- * getnameinfo_local():
- * Format an local address into a printable format.
- */
-/* ARGSUSED */
-static int
-getnameinfo_local(const struct sockaddr *sa, socklen_t salen,
-    char *host, socklen_t hostlen, char *serv, socklen_t servlen,
-    int flags __attribute__((unused)))
-{
-       const struct sockaddr_un *sun =
-           (const struct sockaddr_un *)(const void *)sa;
-
-       if (salen < (socklen_t) offsetof(struct sockaddr_un, sun_path)) {
-           return EAI_FAMILY;
-       }
-
-       if (serv != NULL && servlen > 0)
-               serv[0] = '\0';
-
-       if (host && hostlen > 0)
-               strlcpy(host, sun->sun_path,
-                   MIN((socklen_t) sizeof(sun->sun_path) + 1, hostlen));
-
-       return 0;
-}
-
-/* On success length of the host name is returned. A return
- * value of 0 means there's no host name associated with
- * the address. On failure -1 is returned in which case
- * normal execution flow shall continue. */
-static int
-android_gethostbyaddr_proxy(char* nameBuf, size_t nameBufLen, const void *addr, socklen_t addrLen, int addrFamily, const char* iface, int mark)
-{
-	struct hostent *hostResult =
-			android_gethostbyaddrforiface_proxy(addr, addrLen, addrFamily, iface, mark);
-
-	if (hostResult == NULL) return 0;
-
-	int lengthResult = strlen(hostResult->h_name);
-
-	if (nameBuf) strncpy(nameBuf, hostResult->h_name, nameBufLen);
-	return lengthResult;
-}
-
-/*
- * getnameinfo_inet():
- * Format an IPv4 or IPv6 sockaddr into a printable string.
- */
-static int
-getnameinfo_inet(const struct sockaddr* sa, socklen_t salen,
-       char *host, socklen_t hostlen,
-       char *serv, socklen_t servlen,
-       int flags, const char* iface, int mark)
-{
-	const struct afd *afd;
-	struct servent *sp;
-	struct hostent *hp;
-	u_short port;
-	int family, i;
-	const char *addr;
-	uint32_t v4a;
-	char numserv[512];
-	char numaddr[512];
-
-	/* sa is checked below */
-	/* host may be NULL */
-	/* serv may be NULL */
-
-	if (sa == NULL)
-		return EAI_FAIL;
-
-	family = sa->sa_family;
-	for (i = 0; afdl[i].a_af; i++)
-		if (afdl[i].a_af == family) {
-			afd = &afdl[i];
-			goto found;
-		}
-	return EAI_FAMILY;
-
- found:
-	// http://b/1889275: callers should be allowed to provide too much
-	// space, but not too little.
-	if (salen < afd->a_socklen) {
-		return EAI_FAMILY;
-	}
-
-	/* network byte order */
-	port = ((const struct sockinet *)(const void *)sa)->si_port;
-	addr = (const char *)(const void *)sa + afd->a_off;
-
-	if (serv == NULL || servlen == 0) {
-		/*
-		 * do nothing in this case.
-		 * in case you are wondering if "&&" is more correct than
-		 * "||" here: rfc2553bis-03 says that serv == NULL OR
-		 * servlen == 0 means that the caller does not want the result.
-		 */
-	} else {
-		if (flags & NI_NUMERICSERV)
-			sp = NULL;
-		else {
-			sp = getservbyport(port,
-				(flags & NI_DGRAM) ? "udp" : "tcp");
-		}
-		if (sp) {
-			if (strlen(sp->s_name) + 1 > (size_t)servlen)
-				return EAI_MEMORY;
-			strlcpy(serv, sp->s_name, servlen);
-		} else {
-			snprintf(numserv, sizeof(numserv), "%u", ntohs(port));
-			if (strlen(numserv) + 1 > (size_t)servlen)
-				return EAI_MEMORY;
-			strlcpy(serv, numserv, servlen);
-		}
-	}
-
-	switch (sa->sa_family) {
-	case AF_INET:
-		v4a = (uint32_t)
-		    ntohl(((const struct sockaddr_in *)
-		    (const void *)sa)->sin_addr.s_addr);
-		if (IN_MULTICAST(v4a) || IN_EXPERIMENTAL(v4a))
-			flags |= NI_NUMERICHOST;
-		v4a >>= IN_CLASSA_NSHIFT;
-		if (v4a == 0)
-			flags |= NI_NUMERICHOST;
-		break;
-#ifdef INET6
-	case AF_INET6:
-	    {
-		const struct sockaddr_in6 *sin6;
-		sin6 = (const struct sockaddr_in6 *)(const void *)sa;
-		switch (sin6->sin6_addr.s6_addr[0]) {
-		case 0x00:
-			if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr))
-				;
-			else if (IN6_IS_ADDR_LOOPBACK(&sin6->sin6_addr))
-				;
-			else
-				flags |= NI_NUMERICHOST;
-			break;
-		default:
-			if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
-				flags |= NI_NUMERICHOST;
-			}
-			else if (IN6_IS_ADDR_MULTICAST(&sin6->sin6_addr))
-				flags |= NI_NUMERICHOST;
-			break;
-		}
-	    }
-		break;
-#endif
-	}
-	if (host == NULL || hostlen == 0) {
-		/*
-		 * do nothing in this case.
-		 * in case you are wondering if "&&" is more correct than
-		 * "||" here: rfc2553bis-03 says that host == NULL or
-		 * hostlen == 0 means that the caller does not want the result.
-		 */
-	} else if (flags & NI_NUMERICHOST) {
-		size_t numaddrlen;
-
-		/* NUMERICHOST and NAMEREQD conflicts with each other */
-		if (flags & NI_NAMEREQD)
-			return EAI_NONAME;
-
-		switch(afd->a_af) {
-#ifdef INET6
-		case AF_INET6:
-		{
-			int error;
-
-			if ((error = ip6_parsenumeric(sa, addr, host,
-						      hostlen, flags)) != 0)
-				return(error);
-			break;
-		}
-#endif
-		default:
-			if (inet_ntop(afd->a_af, addr, numaddr, sizeof(numaddr))
-			    == NULL)
-				return EAI_SYSTEM;
-			numaddrlen = strlen(numaddr);
-			if (numaddrlen + 1 > (size_t)hostlen) /* don't forget terminator */
-				return EAI_MEMORY;
-			strlcpy(host, numaddr, hostlen);
-			break;
-		}
-	} else {
-		struct hostent android_proxy_hostent;
-		char android_proxy_buf[MAXDNAME];
-
-		int hostnamelen = android_gethostbyaddr_proxy(android_proxy_buf,
-				MAXDNAME, addr, afd->a_addrlen, afd->a_af, iface, mark);
-		if (hostnamelen > 0) {
-			hp = &android_proxy_hostent;
-			hp->h_name = android_proxy_buf;
-		} else if (!hostnamelen) {
-			hp = NULL;
-		} else {
-			hp = android_gethostbyaddrforiface(addr, afd->a_addrlen, afd->a_af,
-					iface, mark);
-		}
-
-		if (hp) {
-#if 0
-			/*
-			 * commented out, since "for local host" is not
-			 * implemented here - see RFC2553 p30
-			 */
-			if (flags & NI_NOFQDN) {
-				char *p;
-				p = strchr(hp->h_name, '.');
-				if (p)
-					*p = '\0';
-			}
-#endif
-			if (strlen(hp->h_name) + 1 > (size_t)hostlen) {
-				return EAI_MEMORY;
-			}
-			strlcpy(host, hp->h_name, hostlen);
-		} else {
-			if (flags & NI_NAMEREQD)
-				return EAI_NONAME;
-			switch(afd->a_af) {
-#ifdef INET6
-			case AF_INET6:
-			{
-				int error;
-
-				if ((error = ip6_parsenumeric(sa, addr, host,
-							      hostlen,
-							      flags)) != 0)
-					return(error);
-				break;
-			}
-#endif
-			default:
-				if (inet_ntop(afd->a_af, addr, host,
-				    hostlen) == NULL)
-					return EAI_SYSTEM;
-				break;
-			}
-		}
-	}
-	return(0);
-}
-
-#ifdef INET6
-static int
-ip6_parsenumeric(const struct sockaddr *sa, const char *addr, char *host,
-       socklen_t hostlen, int flags)
-{
-	size_t numaddrlen;
-	char numaddr[512];
-
-	assert(sa != NULL);
-	assert(addr != NULL);
-	assert(host != NULL);
-
-	if (inet_ntop(AF_INET6, addr, numaddr, sizeof(numaddr)) == NULL)
-		return EAI_SYSTEM;
-
-	numaddrlen = strlen(numaddr);
-	if (numaddrlen + 1 > (size_t)hostlen) /* don't forget terminator */
-		return EAI_OVERFLOW;
-	strlcpy(host, numaddr, hostlen);
-
-	if (((const struct sockaddr_in6 *)(const void *)sa)->sin6_scope_id) {
-		char zonebuf[MAXHOSTNAMELEN];
-		int zonelen;
-
-		zonelen = ip6_sa2str(
-		    (const struct sockaddr_in6 *)(const void *)sa,
-		    zonebuf, sizeof(zonebuf), flags);
-		if (zonelen < 0)
-			return EAI_OVERFLOW;
-		if ((size_t) zonelen + 1 + numaddrlen + 1 > (size_t)hostlen)
-			return EAI_OVERFLOW;
-		/* construct <numeric-addr><delim><zoneid> */
-		memcpy(host + numaddrlen + 1, zonebuf,
-		    (size_t)zonelen);
-		host[numaddrlen] = SCOPE_DELIMITER;
-		host[numaddrlen + 1 + zonelen] = '\0';
-	}
-
-	return 0;
-}
-
-/* ARGSUSED */
-static int
-ip6_sa2str(const struct sockaddr_in6 *sa6, char *buf, size_t bufsiz, int flags)
-{
-	unsigned int ifindex;
-	const struct in6_addr *a6;
-	int n;
-
-	assert(sa6 != NULL);
-	assert(buf != NULL);
-
-	ifindex = (unsigned int)sa6->sin6_scope_id;
-	a6 = &sa6->sin6_addr;
-
-#ifdef NI_NUMERICSCOPE
-	if ((flags & NI_NUMERICSCOPE) != 0) {
-		n = snprintf(buf, bufsiz, "%u", sa6->sin6_scope_id);
-		if (n < 0 || n >= bufsiz)
-			return -1;
-		else
-			return n;
-	}
-#endif
-
-	/* if_indextoname() does not take buffer size.  not a good api... */
-	if ((IN6_IS_ADDR_LINKLOCAL(a6) || IN6_IS_ADDR_MC_LINKLOCAL(a6)) &&
-	    bufsiz >= IF_NAMESIZE) {
-		char *p = if_indextoname(ifindex, buf);
-		if (p) {
-			return(strlen(p));
-		}
-	}
-
-	/* last resort */
-	n = snprintf(buf, bufsiz, "%u", sa6->sin6_scope_id);
-	if (n < 0 || (size_t) n >= bufsiz)
-		return -1;
-	else
-		return n;
-}
-#endif /* INET6 */