diff --git a/libc/include/netdb.h b/libc/include/netdb.h
new file mode 100644
index 0000000..b0c3b72
--- /dev/null
+++ b/libc/include/netdb.h
@@ -0,0 +1,253 @@
+/*-
+ * Copyright (c) 1980, 1983, 1988, 1993
+ *	The Regents of the University of California.  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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
+ *
+ * -
+ * Portions Copyright (c) 1993 by Digital Equipment Corporation.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies, and that
+ * the name of Digital Equipment Corporation not be used in advertising or
+ * publicity pertaining to distribution of the document or software without
+ * specific, written prior permission.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS.   IN NO EVENT SHALL DIGITAL EQUIPMENT
+ * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ * -
+ * --Copyright--
+ */
+
+/*
+ *      @(#)netdb.h	8.1 (Berkeley) 6/2/93
+ *      From: Id: netdb.h,v 8.9 1996/11/19 08:39:29 vixie Exp $
+ * $FreeBSD: /repoman/r/ncvs/src/include/netdb.h,v 1.41 2006/04/15 16:20:26 ume Exp $
+ */
+
+#ifndef _NETDB_H_
+#define _NETDB_H_
+
+#include <sys/cdefs.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#ifndef _PATH_HEQUIV
+# define	_PATH_HEQUIV	"/system/etc/hosts.equiv"
+#endif
+#define	_PATH_HOSTS	"/system/etc/hosts"
+#define	_PATH_NETWORKS	"/system/etc/networks"
+#define	_PATH_PROTOCOLS	"/system/etc/protocols"
+#define	_PATH_SERVICES	"/system/etc/services"
+
+#define  MAXHOSTNAMELEN  256
+
+/* BIONIC-BEGIN */
+#define  h_errno   (*__get_h_errno())
+extern int*  __get_h_errno(void);
+/* BIONIC-END */
+
+/*
+ * Structures returned by network data base library.  All addresses are
+ * supplied in host order, and returned in network order (suitable for
+ * use in system calls).
+ */
+struct hostent {
+	char	*h_name;	/* official name of host */
+	char	**h_aliases;	/* alias list */
+	int	h_addrtype;	/* host address type */
+	int	h_length;	/* length of address */
+	char	**h_addr_list;	/* list of addresses from name server */
+#define	h_addr	h_addr_list[0]	/* address, for backward compatibility */
+};
+
+struct netent {
+	char		*n_name;	/* official name of net */
+	char		**n_aliases;	/* alias list */
+	int		n_addrtype;	/* net address type */
+	uint32_t	n_net;		/* network # */
+};
+
+struct servent {
+	char	*s_name;	/* official service name */
+	char	**s_aliases;	/* alias list */
+	int	s_port;		/* port # */
+	char	*s_proto;	/* protocol to use */
+};
+
+struct protoent {
+	char	*p_name;	/* official protocol name */
+	char	**p_aliases;	/* alias list */
+	int	p_proto;	/* protocol # */
+};
+
+struct addrinfo {
+	int	ai_flags;	/* AI_PASSIVE, AI_CANONNAME, AI_NUMERICHOST */
+	int	ai_family;	/* PF_xxx */
+	int	ai_socktype;	/* SOCK_xxx */
+	int	ai_protocol;	/* 0 or IPPROTO_xxx for IPv4 and IPv6 */
+	socklen_t ai_addrlen;	/* length of ai_addr */
+	char	*ai_canonname;	/* canonical name for hostname */
+	struct	sockaddr *ai_addr;	/* binary address */
+	struct	addrinfo *ai_next;	/* next structure in linked list */
+};
+
+/*
+ * Error return codes from gethostbyname() and gethostbyaddr()
+ * (left in h_errno).
+ */
+
+#define	NETDB_INTERNAL	-1	/* see errno */
+#define	NETDB_SUCCESS	0	/* no problem */
+#define	HOST_NOT_FOUND	1 /* Authoritative Answer Host not found */
+#define	TRY_AGAIN	2 /* Non-Authoritative Host not found, or SERVERFAIL */
+#define	NO_RECOVERY	3 /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */
+#define	NO_DATA		4 /* Valid name, no data record of requested type */
+#define	NO_ADDRESS	NO_DATA		/* no address, look for MX record */
+
+/*
+ * Error return codes from getaddrinfo()
+ */
+#if 0
+/* obsoleted */
+#define	EAI_ADDRFAMILY	 1	/* address family for hostname not supported */
+#endif
+#define	EAI_AGAIN	 2	/* temporary failure in name resolution */
+#define	EAI_BADFLAGS	 3	/* invalid value for ai_flags */
+#define	EAI_FAIL	 4	/* non-recoverable failure in name resolution */
+#define	EAI_FAMILY	 5	/* ai_family not supported */
+#define	EAI_MEMORY	 6	/* memory allocation failure */
+#define	EAI_NODATA	 7	/* no address associated with hostname */
+#define	EAI_NONAME	 8	/* hostname nor servname provided, or not known */
+#define	EAI_SERVICE	 9	/* servname not supported for ai_socktype */
+#define	EAI_SOCKTYPE	10	/* ai_socktype not supported */
+#define	EAI_SYSTEM	11	/* system error returned in errno */
+#define	EAI_BADHINTS	12	/* invalid value for hints */
+#define	EAI_PROTOCOL	13	/* resolved protocol is unknown */
+#define	EAI_OVERFLOW	14	/* argument buffer overflow */
+#define	EAI_MAX		15
+
+/*
+ * Flag values for getaddrinfo()
+ */
+#define	AI_PASSIVE	0x00000001 /* get address to use bind() */
+#define	AI_CANONNAME	0x00000002 /* fill ai_canonname */
+#define	AI_NUMERICHOST	0x00000004 /* prevent host name resolution */
+#define	AI_NUMERICSERV	0x00000008 /* prevent service name resolution */
+/* valid flags for addrinfo (not a standard def, apps should not use it) */
+#define AI_MASK \
+    (AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST | AI_NUMERICSERV | \
+    AI_ADDRCONFIG)
+
+#define	AI_ALL		0x00000100 /* IPv6 and IPv4-mapped (with AI_V4MAPPED) */
+#define	AI_V4MAPPED_CFG	0x00000200 /* accept IPv4-mapped if kernel supports */
+#define	AI_ADDRCONFIG	0x00000400 /* only if any address is assigned */
+#define	AI_V4MAPPED	0x00000800 /* accept IPv4-mapped IPv6 address */
+/* special recommended flags for getipnodebyname */
+#define	AI_DEFAULT	(AI_V4MAPPED_CFG | AI_ADDRCONFIG)
+
+/*
+ * Constants for getnameinfo()
+ */
+#define	NI_MAXHOST	1025
+#define	NI_MAXSERV	32
+
+/*
+ * Flag values for getnameinfo()
+ */
+#define	NI_NOFQDN	0x00000001
+#define	NI_NUMERICHOST	0x00000002
+#define	NI_NAMEREQD	0x00000004
+#define	NI_NUMERICSERV	0x00000008
+#define	NI_DGRAM	0x00000010
+#if 0 /* obsolete */
+#define NI_WITHSCOPEID	0x00000020
+#endif
+
+/*
+ * Scope delimit character
+ */
+#define	SCOPE_DELIMITER	'%'
+
+__BEGIN_DECLS
+void endhostent(void);
+void endnetent(void);
+void endnetgrent(void);
+void endprotoent(void);
+void endservent(void);
+void freehostent(struct hostent *);
+struct hostent	*gethostbyaddr(const char *, int, int);
+int gethostbyaddr_r(const char *, int, int, struct hostent *, char *, size_t, struct hostent **, int *);
+struct hostent	*gethostbyname(const char *);
+int gethostbyname_r(const char *, struct hostent *, char *, size_t, struct hostent **, int *);
+struct hostent	*gethostbyname2(const char *, int);
+int gethostbyname2_r(const char *, int, struct hostent *, char *, size_t, struct hostent **, int *);
+struct hostent	*gethostent(void);
+int gethostent_r(struct hostent *, char *, size_t, struct hostent **, int *);
+struct hostent	*getipnodebyaddr(const void *, size_t, int, int *);
+struct hostent	*getipnodebyname(const char *, int, int, int *);
+struct netent	*getnetbyaddr(uint32_t, int);
+int getnetbyaddr_r(uint32_t, int, struct netent *, char *, size_t, struct netent**, int *);
+struct netent	*getnetbyname(const char *);
+int getnetbyname_r(const char *, struct netent *, char *, size_t, struct netent **, int *);
+struct netent	*getnetent(void);
+int getnetent_r(struct netent *, char *, size_t, struct netent **, int *);
+int getnetgrent(char **, char **, char **);
+struct protoent	*getprotobyname(const char *);
+int getprotobyname_r(const char *, struct protoent *, char *, size_t, struct protoent **);
+struct protoent	*getprotobynumber(int);
+int getprotobynumber_r(int, struct protoent *, char *, size_t, struct protoent **);
+struct protoent	*getprotoent(void);
+int getprotoent_r(struct protoent *, char *, size_t, struct protoent **);
+struct servent	*getservbyname(const char *, const char *);
+struct servent	*getservbyport(int, const char *);
+struct servent	*getservent(void);
+void herror(const char *);
+const char	*hstrerror(int);
+int innetgr(const char *, const char *, const char *, const char *);
+void sethostent(int);
+void setnetent(int);
+void setprotoent(int);
+int getaddrinfo(const char *, const char *, const struct addrinfo *, struct addrinfo **);
+int getnameinfo(const struct sockaddr *, socklen_t, char *, size_t, char *, size_t, int);
+void freeaddrinfo(struct addrinfo *);
+const char	*gai_strerror(int);
+void setnetgrent(const char *);
+void setservent(int);
+
+__END_DECLS
+
+#endif /* !_NETDB_H_ */