diff options
Diffstat (limited to 'StdLib/BsdSocketLib/getnameinfo.c')
| -rw-r--r-- | StdLib/BsdSocketLib/getnameinfo.c | 581 |
1 files changed, 0 insertions, 581 deletions
diff --git a/StdLib/BsdSocketLib/getnameinfo.c b/StdLib/BsdSocketLib/getnameinfo.c deleted file mode 100644 index 6d74306880..0000000000 --- a/StdLib/BsdSocketLib/getnameinfo.c +++ /dev/null @@ -1,581 +0,0 @@ -/** @file
- Copyright (c) 2010 - 2014, Intel Corporation. All rights reserved.<BR>
- This program and the accompanying materials are licensed and made available
- under the terms and conditions of the BSD License which accompanies this
- distribution. The full text of the license may be found at
- http://opensource.org/licenses/bsd-license.php.
-
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-**/
-/* $NetBSD: getnameinfo.c,v 1.45 2006/10/15 16:14:46 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.
- */
-
-#define INET6 1
-
-#include <sys/cdefs.h>
-#if defined(LIBC_SCCS) && !defined(lint)
-__RCSID("$NetBSD: getnameinfo.c,v 1.45 2006/10/15 16:14:46 christos Exp $");
-#endif /* LIBC_SCCS and not lint */
-
-#include "namespace.h"
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <net/if.h>
-#include <net/if_dl.h>
-//#include <net/if_ieee1394.h>
-//#include <net/if_types.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <arpa/nameser.h>
-#include <assert.h>
-#include <limits.h>
-#include <netdb.h>
-#include <resolv.h>
-#include <stddef.h>
-#include <string.h>
-
-#include <net/servent.h>
-
-#define CLLADDR(x) ( LLADDR(x) )
-#define endservent_r(svd) endservent()
-#define getservbyport_r(Port,pProto,pSv,pSvd) getservbyport(Port,pProto)
-
-#ifdef __weak_alias
-__weak_alias(getnameinfo,_getnameinfo)
-#endif
-
-static
-int
-hexname(
- const u_int8_t * cp,
- size_t len,
- char * host,
- socklen_t hostlen
- );
-
-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 __P((const struct sockaddr *, socklen_t, char *,
- socklen_t, char *, socklen_t, int));
-#ifdef INET6
-static int ip6_parsenumeric __P((const struct sockaddr *, const char *, char *,
- socklen_t, int));
-static int ip6_sa2str __P((const struct sockaddr_in6 *, char *, size_t,
- int));
-#endif
-static int getnameinfo_link __P((const struct sockaddr *, socklen_t, char *,
- socklen_t, char *, socklen_t, int));
-static int hexname __P((const u_int8_t *, size_t, char *, socklen_t));
-
-/*
- * 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,
- socklen_t hostlen,
- char * serv,
- socklen_t servlen,
- int flags
- )
-{
-
- switch (sa->sa_family) {
- case AF_INET:
- case AF_INET6:
- return getnameinfo_inet(sa, salen, host, hostlen,
- serv, servlen, flags);
- case AF_LINK:
- return getnameinfo_link(sa, salen, host, hostlen,
- serv, servlen, flags);
- default:
- return EAI_FAMILY;
- }
-}
-
-
-/*
- * 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 struct afd *afd;
- struct servent *sp;
- struct hostent *hp;
- u_short port;
- int family, i;
- const char *addr;
- u_int32_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;
-
-#ifdef BSD4_4
- if (sa->sa_len != salen)
- return EAI_FAIL;
-#endif
-
- 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:
- if (salen != afd->a_socklen)
- return EAI_FAIL;
-
- /* 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 {
- struct servent_data svd;
-// struct servent sv;
-
- (void)memset(&svd, 0, sizeof(svd));
- sp = getservbyport_r(port,
- (flags & NI_DGRAM) ? "udp" : "tcp", &sv, &svd);
- endservent_r(&svd);
- }
- if (sp) {
- if (strlen(sp->s_name) + 1 > servlen)
- return EAI_MEMORY;
- strlcpy(serv, sp->s_name, servlen);
- } else {
- snprintf(numserv, sizeof(numserv), "%u", ntohs(port));
- if (strlen(numserv) + 1 > servlen)
- return EAI_MEMORY;
- strlcpy(serv, numserv, servlen);
- }
- }
-
- switch (sa->sa_family) {
- case AF_INET:
- v4a = (u_int32_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 > hostlen) /* don't forget terminator */
- return EAI_MEMORY;
- strlcpy(host, numaddr, hostlen);
- break;
- }
- } else {
- hp = gethostbyaddr(addr, afd->a_addrlen, afd->a_af);
-
- 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 > 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];
-
- _DIAGASSERT(sa != NULL);
- _DIAGASSERT(addr != NULL);
- _DIAGASSERT(host != NULL);
-
- if (inet_ntop(AF_INET6, addr, numaddr, sizeof(numaddr)) == NULL)
- return EAI_SYSTEM;
-
- numaddrlen = strlen(numaddr);
- if (numaddrlen + 1 > 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 > 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
- )
-{
-#if 0
- unsigned int ifindex;
- const struct in6_addr *a6;
-#endif
- int n;
-
- _DIAGASSERT(sa6 != NULL);
- _DIAGASSERT(buf != NULL);
-
-#if 0
- ifindex = (unsigned int)sa6->sin6_scope_id;
- a6 = &sa6->sin6_addr;
-#endif
-
-#ifdef NI_NUMERICSCOPE
- if ((flags & NI_NUMERICSCOPE) != 0) {
- n = snprintf(buf, bufsiz, "%u", sa6->sin6_scope_id);
- if ((n < 0) || ((size_t)n >= bufsiz))
- return -1;
- else
- return n;
- }
-#endif
-
-#if 0
- /* 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));
- }
- }
-#endif // 0
-
- /* 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 */
-
-
-/*
- * getnameinfo_link():
- * Format a link-layer address into a printable format, paying attention to
- * the interface type.
- */
-/* ARGSUSED */
-static
-int
-getnameinfo_link (
- const struct sockaddr * sa,
- socklen_t salen,
- char * host,
- socklen_t hostlen,
- char * serv,
- socklen_t servlen,
- int flags
- )
-{
- const struct sockaddr_dl *sdl =
- (const struct sockaddr_dl *)(const void *)sa;
-// const struct ieee1394_hwaddr *iha;
- int n;
-
- if (serv != NULL && servlen > 0)
- *serv = '\0';
-
- if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 && sdl->sdl_slen == 0) {
- n = snprintf(host, hostlen, "link#%u", sdl->sdl_index);
- if (n < 0 || (socklen_t) n > hostlen) {
- *host = '\0';
- return EAI_MEMORY;
- }
- return 0;
- }
-
-#if 0
- switch (sdl->sdl_type) {
-#ifdef IFT_ECONET
- case IFT_ECONET:
- if (sdl->sdl_alen < 2)
- return EAI_FAMILY;
- if (CLLADDR(sdl)[1] == 0)
- n = snprintf(host, hostlen, "%u", CLLADDR(sdl)[0]);
- else
- n = snprintf(host, hostlen, "%u.%u",
- CLLADDR(sdl)[1], CLLADDR(sdl)[0]);
- if (n < 0 || (socklen_t) n >= hostlen) {
- *host = '\0';
- return EAI_MEMORY;
- } else
- return 0;
-#endif
- case IFT_IEEE1394:
- if (sdl->sdl_alen < sizeof(iha->iha_uid))
- return EAI_FAMILY;
- iha =
- (const struct ieee1394_hwaddr *)(const void *)CLLADDR(sdl);
- return hexname(iha->iha_uid, sizeof(iha->iha_uid),
- host, hostlen);
- /*
- * The following have zero-length addresses.
- * IFT_ATM (net/if_atmsubr.c)
- * IFT_FAITH (net/if_faith.c)
- * IFT_GIF (net/if_gif.c)
- * IFT_LOOP (net/if_loop.c)
- * IFT_PPP (net/if_ppp.c, net/if_spppsubr.c)
- * IFT_SLIP (net/if_sl.c, net/if_strip.c)
- * IFT_STF (net/if_stf.c)
- * IFT_L2VLAN (net/if_vlan.c)
- * IFT_PROPVIRTUAL (net/if_bridge.h>
- */
- /*
- * The following use IPv4 addresses as link-layer addresses:
- * IFT_OTHER (net/if_gre.c)
- */
- case IFT_ARCNET: /* default below is believed correct for all these. */
- case IFT_ETHER:
- case IFT_FDDI:
- case IFT_HIPPI:
- case IFT_ISO88025:
- default:
-#endif // 0
- return hexname((const u_int8_t *)CLLADDR(sdl),
- (size_t)sdl->sdl_alen, host, hostlen);
-// }
-}
-
-static
-int
-hexname(
- const u_int8_t * cp,
- size_t len,
- char * host,
- socklen_t hostlen
- )
-{
- int n;
- size_t i;
- char *outp = host;
-
- *outp = '\0';
- for (i = 0; i < len; i++) {
- n = snprintf(outp, hostlen, "%s%02x",
- i ? ":" : "", cp[i]);
- if (n < 0 || (socklen_t) n >= hostlen) {
- *host = '\0';
- return EAI_MEMORY;
- }
- outp += n;
- hostlen -= n;
- }
- return 0;
-}
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