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-rw-r--r--contrib/bind/lib/irs/nis_ho.c530
1 files changed, 0 insertions, 530 deletions
diff --git a/contrib/bind/lib/irs/nis_ho.c b/contrib/bind/lib/irs/nis_ho.c
deleted file mode 100644
index 7158f4c..0000000
--- a/contrib/bind/lib/irs/nis_ho.c
+++ /dev/null
@@ -1,530 +0,0 @@
-/*
- * Copyright (c) 1996,1999 by Internet Software Consortium.
- *
- * 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.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
- * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
- * CONSORTIUM 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.
- */
-
-#if defined(LIBC_SCCS) && !defined(lint)
-static const char rcsid[] = "$Id: nis_ho.c,v 1.18.10.1 2003/06/02 05:50:57 marka Exp $";
-#endif /* LIBC_SCCS and not lint */
-
-/* Imports */
-
-#include "port_before.h"
-
-#ifndef WANT_IRS_NIS
-static int __bind_irs_nis_unneeded;
-#else
-
-#include <sys/types.h>
-#include <sys/param.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <arpa/nameser.h>
-#include <rpc/rpc.h>
-#include <rpc/xdr.h>
-#include <rpcsvc/yp_prot.h>
-#include <rpcsvc/ypclnt.h>
-
-#include <ctype.h>
-#include <errno.h>
-#include <stdlib.h>
-#include <netdb.h>
-#include <resolv.h>
-#include <stdio.h>
-#include <string.h>
-
-#include <isc/memcluster.h>
-#include <irs.h>
-
-#include "port_after.h"
-
-#include "irs_p.h"
-#include "nis_p.h"
-
-/* Definitions */
-
-#define MAXALIASES 35
-#define MAXADDRS 35
-
-#if PACKETSZ > 1024
-#define MAXPACKET PACKETSZ
-#else
-#define MAXPACKET 1024
-#endif
-
-struct pvt {
- int needrewind;
- char * nis_domain;
- char * curkey_data;
- int curkey_len;
- char * curval_data;
- int curval_len;
- struct hostent host;
- char * h_addr_ptrs[MAXADDRS + 1];
- char * host_aliases[MAXALIASES + 1];
- char hostbuf[8*1024];
- u_char host_addr[16]; /* IPv4 or IPv6 */
- struct __res_state *res;
- void (*free_res)(void *);
-};
-
-enum do_what { do_none = 0x0, do_key = 0x1, do_val = 0x2, do_all = 0x3 };
-
-static const u_char mapped[] = { 0,0, 0,0, 0,0, 0,0, 0,0, 0xff,0xff };
-static const u_char tunnelled[] = { 0,0, 0,0, 0,0, 0,0, 0,0, 0,0 };
-static /*const*/ char hosts_byname[] = "hosts.byname";
-static /*const*/ char hosts_byaddr[] = "hosts.byaddr";
-static /*const*/ char ipnode_byname[] = "ipnode.byname";
-static /*const*/ char ipnode_byaddr[] = "ipnode.byaddr";
-static /*const*/ char yp_multi[] = "YP_MULTI_";
-
-/* Forwards */
-
-static void ho_close(struct irs_ho *this);
-static struct hostent * ho_byname(struct irs_ho *this, const char *name);
-static struct hostent * ho_byname2(struct irs_ho *this, const char *name,
- int af);
-static struct hostent * ho_byaddr(struct irs_ho *this, const void *addr,
- int len, int af);
-static struct hostent * ho_next(struct irs_ho *this);
-static void ho_rewind(struct irs_ho *this);
-static void ho_minimize(struct irs_ho *this);
-static struct __res_state * ho_res_get(struct irs_ho *this);
-static void ho_res_set(struct irs_ho *this,
- struct __res_state *res,
- void (*free_res)(void *));
-static struct addrinfo * ho_addrinfo(struct irs_ho *this, const char *name,
- const struct addrinfo *pai);
-
-static struct hostent * makehostent(struct irs_ho *this);
-static void nisfree(struct pvt *, enum do_what);
-static int init(struct irs_ho *this);
-
-/* Public */
-
-struct irs_ho *
-irs_nis_ho(struct irs_acc *this) {
- struct irs_ho *ho;
- struct pvt *pvt;
-
- if (!(pvt = memget(sizeof *pvt))) {
- errno = ENOMEM;
- return (NULL);
- }
- memset(pvt, 0, sizeof *pvt);
- if (!(ho = memget(sizeof *ho))) {
- memput(pvt, sizeof *pvt);
- errno = ENOMEM;
- return (NULL);
- }
- memset(ho, 0x5e, sizeof *ho);
- pvt->needrewind = 1;
- pvt->nis_domain = ((struct nis_p *)this->private)->domain;
- ho->private = pvt;
- ho->close = ho_close;
- ho->byname = ho_byname;
- ho->byname2 = ho_byname2;
- ho->byaddr = ho_byaddr;
- ho->next = ho_next;
- ho->rewind = ho_rewind;
- ho->minimize = ho_minimize;
- ho->res_set = ho_res_set;
- ho->res_get = ho_res_get;
- ho->addrinfo = ho_addrinfo;
- return (ho);
-}
-
-/* Methods */
-
-static void
-ho_close(struct irs_ho *this) {
- struct pvt *pvt = (struct pvt *)this->private;
-
- ho_minimize(this);
- nisfree(pvt, do_all);
- if (pvt->res && pvt->free_res)
- (*pvt->free_res)(pvt->res);
- memput(pvt, sizeof *pvt);
- memput(this, sizeof *this);
-}
-
-static struct hostent *
-ho_byname(struct irs_ho *this, const char *name) {
- struct pvt *pvt = (struct pvt *)this->private;
- struct hostent *hp;
-
- if (init(this) == -1)
- return (NULL);
-
- if (pvt->res->options & RES_USE_INET6) {
- hp = ho_byname2(this, name, AF_INET6);
- if (hp)
- return (hp);
- }
- return (ho_byname2(this, name, AF_INET));
-}
-
-static struct hostent *
-ho_byname2(struct irs_ho *this, const char *name, int af) {
- struct pvt *pvt = (struct pvt *)this->private;
- int r;
- char *tmp;
-
- UNUSED(af);
-
- if (init(this) == -1)
- return (NULL);
-
- nisfree(pvt, do_val);
-
- strcpy(pvt->hostbuf, yp_multi);
- strncat(pvt->hostbuf, name, sizeof(pvt->hostbuf) - sizeof(yp_multi));
- pvt->hostbuf[sizeof(pvt->hostbuf) - 1] = '\0';
- for (r = sizeof(yp_multi) - 1; pvt->hostbuf[r] != '\0'; r++)
- if (isupper((unsigned char)pvt->hostbuf[r]))
- tolower(pvt->hostbuf[r]);
-
- tmp = pvt->hostbuf;
- r = yp_match(pvt->nis_domain, ipnode_byname, tmp,
- strlen(tmp), &pvt->curval_data, &pvt->curval_len);
- if (r != 0) {
- tmp = pvt->hostbuf + sizeof(yp_multi) - 1;
- r = yp_match(pvt->nis_domain, ipnode_byname, tmp,
- strlen(tmp), &pvt->curval_data, &pvt->curval_len);
- }
- if (r != 0) {
- tmp = pvt->hostbuf;
- r = yp_match(pvt->nis_domain, hosts_byname, tmp,
- strlen(tmp), &pvt->curval_data, &pvt->curval_len);
- }
- if (r != 0) {
- tmp = pvt->hostbuf + sizeof(yp_multi) - 1;
- r = yp_match(pvt->nis_domain, hosts_byname, tmp,
- strlen(tmp), &pvt->curval_data, &pvt->curval_len);
- }
- if (r != 0) {
- RES_SET_H_ERRNO(pvt->res, HOST_NOT_FOUND);
- return (NULL);
- }
- return (makehostent(this));
-}
-
-static struct hostent *
-ho_byaddr(struct irs_ho *this, const void *addr, int len, int af) {
- struct pvt *pvt = (struct pvt *)this->private;
- char tmp[sizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255"];
- const u_char *uaddr = addr;
- int r;
-
- if (init(this) == -1)
- return (NULL);
-
- if (af == AF_INET6 && len == IN6ADDRSZ &&
- (!memcmp(uaddr, mapped, sizeof mapped) ||
- !memcmp(uaddr, tunnelled, sizeof tunnelled))) {
- /* Unmap. */
- addr = (const u_char *)addr + sizeof mapped;
- uaddr += sizeof mapped;
- af = AF_INET;
- len = INADDRSZ;
- }
- if (inet_ntop(af, uaddr, tmp, sizeof tmp) == NULL) {
- RES_SET_H_ERRNO(pvt->res, NETDB_INTERNAL);
- return (NULL);
- }
- nisfree(pvt, do_val);
- r = yp_match(pvt->nis_domain, ipnode_byaddr, tmp, strlen(tmp),
- &pvt->curval_data, &pvt->curval_len);
- if (r != 0)
- r = yp_match(pvt->nis_domain, hosts_byaddr, tmp, strlen(tmp),
- &pvt->curval_data, &pvt->curval_len);
- if (r != 0) {
- RES_SET_H_ERRNO(pvt->res, HOST_NOT_FOUND);
- return (NULL);
- }
- return (makehostent(this));
-}
-
-static struct hostent *
-ho_next(struct irs_ho *this) {
- struct pvt *pvt = (struct pvt *)this->private;
- struct hostent *rval;
- int r;
-
- if (init(this) == -1)
- return (NULL);
-
- do {
- if (pvt->needrewind) {
- nisfree(pvt, do_all);
- r = yp_first(pvt->nis_domain, hosts_byaddr,
- &pvt->curkey_data, &pvt->curkey_len,
- &pvt->curval_data, &pvt->curval_len);
- pvt->needrewind = 0;
- } else {
- char *newkey_data;
- int newkey_len;
-
- nisfree(pvt, do_val);
- r = yp_next(pvt->nis_domain, hosts_byaddr,
- pvt->curkey_data, pvt->curkey_len,
- &newkey_data, &newkey_len,
- &pvt->curval_data, &pvt->curval_len);
- nisfree(pvt, do_key);
- pvt->curkey_data = newkey_data;
- pvt->curkey_len = newkey_len;
- }
- if (r != 0) {
- RES_SET_H_ERRNO(pvt->res, HOST_NOT_FOUND);
- return (NULL);
- }
- rval = makehostent(this);
- } while (rval == NULL);
- return (rval);
-}
-
-static void
-ho_rewind(struct irs_ho *this) {
- struct pvt *pvt = (struct pvt *)this->private;
-
- pvt->needrewind = 1;
-}
-
-static void
-ho_minimize(struct irs_ho *this) {
- struct pvt *pvt = (struct pvt *)this->private;
-
- if (pvt->res)
- res_nclose(pvt->res);
-}
-
-static struct __res_state *
-ho_res_get(struct irs_ho *this) {
- struct pvt *pvt = (struct pvt *)this->private;
-
- if (!pvt->res) {
- struct __res_state *res;
- res = (struct __res_state *)malloc(sizeof *res);
- if (!res) {
- errno = ENOMEM;
- return (NULL);
- }
- memset(res, 0, sizeof *res);
- ho_res_set(this, res, free);
- }
-
- return (pvt->res);
-}
-
-static void
-ho_res_set(struct irs_ho *this, struct __res_state *res,
- void (*free_res)(void *)) {
- struct pvt *pvt = (struct pvt *)this->private;
-
- if (pvt->res && pvt->free_res) {
- res_nclose(pvt->res);
- (*pvt->free_res)(pvt->res);
- }
-
- pvt->res = res;
- pvt->free_res = free_res;
-}
-
-struct nis_res_target {
- struct nis_res_target *next;
- int family;
-};
-
-/* XXX */
-extern struct addrinfo *hostent2addrinfo __P((struct hostent *,
- const struct addrinfo *pai));
-
-static struct addrinfo *
-ho_addrinfo(struct irs_ho *this, const char *name, const struct addrinfo *pai)
-{
- struct pvt *pvt = (struct pvt *)this->private;
- struct hostent *hp;
- struct nis_res_target q, q2, *p;
- struct addrinfo sentinel, *cur;
-
- memset(&q, 0, sizeof(q2));
- memset(&q2, 0, sizeof(q2));
- memset(&sentinel, 0, sizeof(sentinel));
- cur = &sentinel;
-
- switch(pai->ai_family) {
- case AF_UNSPEC: /* INET6 then INET4 */
- q.family = AF_INET6;
- q.next = &q2;
- q2.family = AF_INET;
- break;
- case AF_INET6:
- q.family = AF_INET6;
- break;
- case AF_INET:
- q.family = AF_INET;
- break;
- default:
- RES_SET_H_ERRNO(pvt->res, NO_RECOVERY); /* ??? */
- return(NULL);
- }
-
- for (p = &q; p; p = p->next) {
- struct addrinfo *ai;
-
- hp = (*this->byname2)(this, name, p->family);
- if (hp == NULL) {
- /* byname2 should've set an appropriate error */
- continue;
- }
- if ((hp->h_name == NULL) || (hp->h_name[0] == 0) ||
- (hp->h_addr_list[0] == NULL)) {
- RES_SET_H_ERRNO(pvt->res, NO_RECOVERY);
- continue;
- }
- ai = hostent2addrinfo(hp, pai);
- if (ai) {
- cur->ai_next = ai;
- while (cur && cur->ai_next)
- cur = cur->ai_next;
- }
- }
-
- if (sentinel.ai_next == NULL)
- RES_SET_H_ERRNO(pvt->res, HOST_NOT_FOUND);
-
- return(sentinel.ai_next);
-}
-
-/* Private */
-
-/*
-ipnodes:
-::1 localhost
-127.0.0.1 localhost
-1.2.3.4 FOO bar
-1.2.6.4 FOO bar
-1.2.6.5 host
-
-ipnodes.byname:
-YP_MULTI_localhost ::1,127.0.0.1 localhost
-YP_MULTI_foo 1.2.3.4,1.2.6.4 FOO bar
-YP_MULTI_bar 1.2.3.4,1.2.6.4 FOO bar
-host 1.2.6.5 host
-
-hosts.byname:
-localhost 127.0.0.1 localhost
-host 1.2.6.5 host
-YP_MULTI_foo 1.2.3.4,1.2.6.4 FOO bar
-YP_MULTI_bar 1.2.3.4,1.2.6.4 FOO bar
-*/
-
-static struct hostent *
-makehostent(struct irs_ho *this) {
- struct pvt *pvt = (struct pvt *)this->private;
- static const char spaces[] = " \t";
- char *cp, **q, *p, *comma, *ap;
- int af = 0, len = 0;
- int multi = 0;
- int addr = 0;
-
- p = pvt->curval_data;
- if ((cp = strpbrk(p, "#\n")) != NULL)
- *cp = '\0';
- if (!(cp = strpbrk(p, spaces)))
- return (NULL);
- *cp++ = '\0';
- ap = pvt->hostbuf;
- do {
- if ((comma = strchr(p, ',')) != NULL) {
- *comma++ = '\0';
- multi = 1;
- }
- if ((ap + IN6ADDRSZ) > (pvt->hostbuf + sizeof(pvt->hostbuf)))
- break;
- if ((pvt->res->options & RES_USE_INET6) &&
- inet_pton(AF_INET6, p, ap) > 0) {
- af = AF_INET6;
- len = IN6ADDRSZ;
- } else if (inet_pton(AF_INET, p, pvt->host_addr) > 0) {
- if (pvt->res->options & RES_USE_INET6) {
- map_v4v6_address((char*)pvt->host_addr, ap);
- af = AF_INET6;
- len = IN6ADDRSZ;
- } else {
- af = AF_INET;
- len = INADDRSZ;
- }
- } else {
- if (!multi)
- return (NULL);
- continue;
- }
- if (addr < MAXADDRS) {
- pvt->h_addr_ptrs[addr++] = ap;
- pvt->h_addr_ptrs[addr] = NULL;
- ap += len;
- }
- } while ((p = comma) != NULL);
- if (ap == pvt->hostbuf)
- return (NULL);
- pvt->host.h_addr_list = pvt->h_addr_ptrs;
- pvt->host.h_length = len;
- pvt->host.h_addrtype = af;
- cp += strspn(cp, spaces);
- pvt->host.h_name = cp;
- q = pvt->host.h_aliases = pvt->host_aliases;
- if ((cp = strpbrk(cp, spaces)) != NULL)
- *cp++ = '\0';
- while (cp && *cp) {
- if (*cp == ' ' || *cp == '\t') {
- cp++;
- continue;
- }
- if (q < &pvt->host_aliases[MAXALIASES])
- *q++ = cp;
- if ((cp = strpbrk(cp, spaces)) != NULL)
- *cp++ = '\0';
- }
- *q = NULL;
- RES_SET_H_ERRNO(pvt->res, NETDB_SUCCESS);
- return (&pvt->host);
-}
-
-static void
-nisfree(struct pvt *pvt, enum do_what do_what) {
- if ((do_what & do_key) && pvt->curkey_data) {
- free(pvt->curkey_data);
- pvt->curkey_data = NULL;
- }
- if ((do_what & do_val) && pvt->curval_data) {
- free(pvt->curval_data);
- pvt->curval_data = NULL;
- }
-}
-
-static int
-init(struct irs_ho *this) {
- struct pvt *pvt = (struct pvt *)this->private;
-
- if (!pvt->res && !ho_res_get(this))
- return (-1);
- if (((pvt->res->options & RES_INIT) == 0) &&
- res_ninit(pvt->res) == -1)
- return (-1);
- return (0);
-}
-#endif /*WANT_IRS_NIS*/
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