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-rw-r--r--lib/bind/irs/getnameinfo.c334
1 files changed, 0 insertions, 334 deletions
diff --git a/lib/bind/irs/getnameinfo.c b/lib/bind/irs/getnameinfo.c
deleted file mode 100644
index 89c8230..0000000
--- a/lib/bind/irs/getnameinfo.c
+++ /dev/null
@@ -1,334 +0,0 @@
-/*
- * Issues to be discussed:
- * - Thread safe-ness must be checked
- */
-
-#if ( defined(__linux__) || defined(__linux) || defined(LINUX) )
-#ifndef IF_NAMESIZE
-# ifdef IFNAMSIZ
-# define IF_NAMESIZE IFNAMSIZ
-# else
-# define IF_NAMESIZE 16
-# endif
-#endif
-#endif
-
-/*
- * 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. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by WIDE Project and
- * its contributors.
- * 4. 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.
- */
-
-#include <port_before.h>
-
-#include <sys/types.h>
-#include <sys/socket.h>
-
-#include <netinet/in.h>
-#include <arpa/nameser.h>
-#include <arpa/inet.h>
-#include <net/if.h>
-
-#include <netdb.h>
-#include <resolv.h>
-#include <string.h>
-#include <stddef.h>
-
-#include <port_after.h>
-
-/*%
- * Note that a_off will be dynamically adjusted so that to be consistent
- * with the definition of sockaddr_in{,6}.
- * The value presented below is just a guess.
- */
-static struct afd {
- int a_af;
- int a_addrlen;
- size_t a_socklen;
- int a_off;
-} afdl [] = {
- /* first entry is linked last... */
- {PF_INET, sizeof(struct in_addr), sizeof(struct sockaddr_in),
- offsetof(struct sockaddr_in, sin_addr)},
- {PF_INET6, sizeof(struct in6_addr), sizeof(struct sockaddr_in6),
- offsetof(struct sockaddr_in6, sin6_addr)},
- {0, 0, 0, 0},
-};
-
-struct sockinet {
-#ifdef HAVE_SA_LEN
- u_char si_len;
-#endif
- u_char si_family;
- u_short si_port;
-};
-
-static int ip6_parsenumeric __P((const struct sockaddr *, const char *, char *,
- size_t, int));
-#ifdef HAVE_SIN6_SCOPE_ID
-static int ip6_sa2str __P((const struct sockaddr_in6 *, char *, size_t, int));
-#endif
-
-int
-getnameinfo(sa, salen, host, hostlen, serv, servlen, flags)
- const struct sockaddr *sa;
- size_t salen;
- char *host;
- size_t hostlen;
- char *serv;
- size_t servlen;
- int flags;
-{
- struct afd *afd;
- struct servent *sp;
- struct hostent *hp;
- u_short port;
-#ifdef HAVE_SA_LEN
- size_t len;
-#endif
- int family, i;
- const char *addr;
- char *p;
- char numserv[512];
- char numaddr[512];
- const struct sockaddr_in6 *sin6;
-
- if (sa == NULL)
- return EAI_FAIL;
-
-#ifdef HAVE_SA_LEN
- len = sa->sa_len;
- if (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;
-
- port = ((const struct sockinet *)sa)->si_port; /*%< network byte order */
- addr = (const char *)sa + afd->a_off;
-
- if (serv == NULL || servlen == 0U) {
- /*
- * rfc2553bis says that serv == NULL or servlen == 0 means that
- * the caller does not want the result.
- */
- } else if (flags & NI_NUMERICSERV) {
- sprintf(numserv, "%d", ntohs(port));
- if (strlen(numserv) > servlen)
- return EAI_MEMORY;
- strcpy(serv, numserv);
- } else {
- sp = getservbyport(port, (flags & NI_DGRAM) ? "udp" : "tcp");
- if (sp) {
- if (strlen(sp->s_name) + 1 > servlen)
- return EAI_MEMORY;
- strcpy(serv, sp->s_name);
- } else
- return EAI_NONAME;
- }
-
- switch (sa->sa_family) {
- case AF_INET:
- if (ntohl(*(const u_int32_t *)addr) >> IN_CLASSA_NSHIFT == 0)
- flags |= NI_NUMERICHOST;
- break;
- case AF_INET6:
- sin6 = (const struct sockaddr_in6 *)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;
- }
- if (host == NULL || hostlen == 0U) {
- /*
- * rfc2553bis says that host == NULL or hostlen == 0 means that
- * the caller does not want the result.
- */
- } else if (flags & NI_NUMERICHOST) {
- goto numeric;
- } else {
- hp = gethostbyaddr(addr, afd->a_addrlen, afd->a_af);
-
- if (hp) {
- if (flags & NI_NOFQDN) {
- p = strchr(hp->h_name, '.');
- if (p) *p = '\0';
- }
- if (strlen(hp->h_name) + 1 > hostlen)
- return EAI_MEMORY;
- strcpy(host, hp->h_name);
- } else {
- if (flags & NI_NAMEREQD)
- return EAI_NONAME;
- numeric:
- switch(afd->a_af) {
- case AF_INET6:
- {
- int error;
-
- if ((error = ip6_parsenumeric(sa, addr, host,
- hostlen,
- flags)) != 0)
- return(error);
- break;
- }
-
- default:
- if (inet_ntop(afd->a_af, addr, numaddr,
- sizeof(numaddr)) == NULL)
- return EAI_NONAME;
- if (strlen(numaddr) + 1 > hostlen)
- return EAI_MEMORY;
- strcpy(host, numaddr);
- }
- }
- }
- return(0);
-}
-
-static int
-ip6_parsenumeric(const struct sockaddr *sa, const char *addr, char *host,
- size_t hostlen, int flags)
-{
- size_t numaddrlen;
- char numaddr[512];
-
-#ifndef HAVE_SIN6_SCOPE_ID
- UNUSED(sa);
- UNUSED(flags);
-#endif
-
- 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_MEMORY;
- strcpy(host, numaddr);
-
-#ifdef HAVE_SIN6_SCOPE_ID
- if (((const struct sockaddr_in6 *)sa)->sin6_scope_id) {
- char scopebuf[MAXHOSTNAMELEN]; /*%< XXX */
- int scopelen;
-
- /* ip6_sa2str never fails */
- scopelen = ip6_sa2str((const struct sockaddr_in6 *)sa,
- scopebuf, sizeof(scopebuf), flags);
-
- if (scopelen + 1 + numaddrlen + 1 > hostlen)
- return EAI_MEMORY;
-
- /* construct <numeric-addr><delim><scopeid> */
- memcpy(host + numaddrlen + 1, scopebuf,
- scopelen);
- host[numaddrlen] = SCOPE_DELIMITER;
- host[numaddrlen + 1 + scopelen] = '\0';
- }
-#endif
-
- return 0;
-}
-
-#ifdef HAVE_SIN6_SCOPE_ID
-/* ARGSUSED */
-static int
-ip6_sa2str(const struct sockaddr_in6 *sa6, char *buf,
- size_t bufsiz, int flags)
-{
-#ifdef USE_IFNAMELINKID
- unsigned int ifindex = (unsigned int)sa6->sin6_scope_id;
- const struct in6_addr *a6 = &sa6->sin6_addr;
-#endif
- char tmp[64];
-
-#ifdef NI_NUMERICSCOPE
- if (flags & NI_NUMERICSCOPE) {
- sprintf(tmp, "%u", sa6->sin6_scope_id);
- if (bufsiz != 0U) {
- strncpy(buf, tmp, bufsiz - 1);
- buf[bufsiz - 1] = '\0';
- }
- return(strlen(tmp));
- }
-#endif
-
-#ifdef USE_IFNAMELINKID
- /*
- * For a link-local address, convert the index to an interface
- * name, assuming a one-to-one mapping between links and interfaces.
- * Note, however, that this assumption is stronger than the
- * specification of the scoped address architecture; the
- * specficication says that more than one interfaces can belong to
- * a single link.
- */
-
- /* 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
-
- /* last resort */
- sprintf(tmp, "%u", sa6->sin6_scope_id);
- if (bufsiz != 0U) {
- strncpy(buf, tmp, bufsiz - 1);
- buf[bufsiz - 1] = '\0';
- }
- return(strlen(tmp));
-}
-#endif
-
-/*! \file */
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