diff options
Diffstat (limited to 'contrib/bind/lib/irs/getnameinfo.c')
| -rw-r--r-- | contrib/bind/lib/irs/getnameinfo.c | 225 |
1 files changed, 0 insertions, 225 deletions
diff --git a/contrib/bind/lib/irs/getnameinfo.c b/contrib/bind/lib/irs/getnameinfo.c deleted file mode 100644 index 7bd30ae5687c0..0000000000000 --- a/contrib/bind/lib/irs/getnameinfo.c +++ /dev/null @@ -1,225 +0,0 @@ -/* - * Issues to be discussed: - * - Thread safe-ness must be checked - * - Return values. There seems to be no standard for return value (RFC2133) - * but INRIA implementation returns EAI_xxx defined for getaddrinfo(). - */ - -/* - * 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 <netdb.h> -#include <resolv.h> -#include <string.h> - -#include <port_after.h> - -#define SUCCESS 0 -#define ANY 0 -#define YES 1 -#define NO 0 - -/* - * 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; - int a_socklen; - int a_off; -} afdl [] = { - /* first entry is linked last... */ - {PF_INET, sizeof(struct in_addr), sizeof(struct sockaddr_in), - 4 /*XXX*/}, - {PF_INET6, sizeof(struct in6_addr), sizeof(struct sockaddr_in6), - 8 /*XXX*/}, - {0, 0, 0}, -}; - -struct sockinet { - u_char si_len; - u_char si_family; - u_short si_port; -}; - -#define ENI_NOSOCKET 0 -#define ENI_NOSERVNAME 1 -#define ENI_NOHOSTNAME 2 -#define ENI_MEMORY 3 -#define ENI_SYSTEM 4 -#define ENI_FAMILY 5 -#define ENI_SALEN 6 - -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 - int len; -#endif - int family, i; - char *addr, *p; - u_char pfx; - static int firsttime = 1; - static char numserv[512]; - static char numaddr[512]; - - - /* dynamically adjust a_off */ - if (firsttime) { - struct afd *p; - u_char *q; - struct sockaddr_in sin; - struct sockaddr_in6 sin6; - - for (p = &afdl[0]; p->a_af; p++) { - switch (p->a_af) { - case PF_INET: - q = (u_char *)&sin.sin_addr.s_addr; - p->a_off = q - (u_char *)&sin; - break; - case PF_INET6: - q = (u_char *)&sin6.sin6_addr.s6_addr; - p->a_off = q - (u_char *)&sin6; - break; - default: - break; - } - } - firsttime = 0; - } - - if (sa == NULL) - return ENI_NOSOCKET; - -#ifdef HAVE_SA_LEN - len = sa->sa_len; - if (len != salen) return ENI_SALEN; -#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 ENI_FAMILY; - - found: - if (salen != afd->a_socklen) return ENI_SALEN; - - port = ((struct sockinet *)sa)->si_port; /* network byte order */ - addr = (char *)sa + afd->a_off; - - if (serv == NULL || servlen == 0) { - /* what we should do? */ - } else if (flags & NI_NUMERICSERV) { - snprintf(numserv, strlen(numserv), "%d", ntohs(port)); - if (strlen(numserv) > servlen) - return ENI_MEMORY; - strcpy(serv, numserv); - } else { - sp = getservbyport(port, (flags & NI_DGRAM) ? "udp" : "tcp"); - if (sp) { - if (strlen(sp->s_name) > servlen) - return ENI_MEMORY; - strcpy(serv, sp->s_name); - } else - return ENI_NOSERVNAME; - } - - switch (sa->sa_family) { - case AF_INET: - if (ntohl(*(u_long *)addr) >> IN_CLASSA_NSHIFT == 0) - flags |= NI_NUMERICHOST; - break; - case AF_INET6: - pfx = *addr; - if (pfx == 0 || pfx == 0xfe || pfx == 0xff) - flags |= NI_NUMERICHOST; - break; - } - if (host == NULL || hostlen == 0) { - /* what should we do? */ - } else if (flags & NI_NUMERICHOST) { - if (inet_ntop(afd->a_af, addr, numaddr, sizeof(numaddr)) - == NULL) - return ENI_SYSTEM; - if (strlen(numaddr) > hostlen) - return ENI_MEMORY; - strcpy(host, numaddr); - } 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) > hostlen) - return ENI_MEMORY; - strcpy(host, hp->h_name); - } else { - if (flags & NI_NAMEREQD) - return ENI_NOHOSTNAME; - if (inet_ntop(afd->a_af, addr, numaddr, sizeof(numaddr)) - == NULL) - return ENI_NOHOSTNAME; - if (strlen(numaddr) > hostlen) - return ENI_MEMORY; - strcpy(host, numaddr); - } - } - return SUCCESS; -} |