1 files changed, 0 insertions, 711 deletions

diff --git a/crypto/heimdal/lib/roken/resolve.c b/crypto/heimdal/lib/roken/resolve.c
deleted file mode 100644
index 8f8fec7..0000000
--- a/crypto/heimdal/lib/roken/resolve.c
+++ /dev/null
@@ -1,711 +0,0 @@
-/*
- * Copyright (c) 1995 - 2006 Kungliga Tekniska Högskolan
- * (Royal Institute of Technology, Stockholm, Sweden).
- * 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 Institute 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 INSTITUTE 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 INSTITUTE 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.
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include "roken.h"
-#ifdef HAVE_ARPA_NAMESER_H
-#include <arpa/nameser.h>
-#endif
-#ifdef HAVE_RESOLV_H
-#include <resolv.h>
-#endif
-#include "resolve.h"
-
-#include <assert.h>
-
-RCSID("$Id: resolve.c 19869 2007-01-12 16:03:14Z lha $");
-
-#ifdef _AIX /* AIX have broken res_nsearch() in 5.1 (5.0 also ?) */
-#undef HAVE_RES_NSEARCH
-#endif
-
-#define DECL(X) {#X, rk_ns_t_##X}
-
-static struct stot{
-    const char *name;
-    int type;
-}stot[] = {
-    DECL(a),
-    DECL(aaaa),
-    DECL(ns),
-    DECL(cname),
-    DECL(soa),
-    DECL(ptr),
-    DECL(mx),
-    DECL(txt),
-    DECL(afsdb),
-    DECL(sig),
-    DECL(key),
-    DECL(srv),
-    DECL(naptr),
-    DECL(sshfp),
-    DECL(ds),
-    {NULL, 	0}
-};
-
-int _resolve_debug = 0;
-
-int ROKEN_LIB_FUNCTION
-dns_string_to_type(const char *name)
-{
-    struct stot *p = stot;
-    for(p = stot; p->name; p++)
-	if(strcasecmp(name, p->name) == 0)
-	    return p->type;
-    return -1;
-}
-
-const char * ROKEN_LIB_FUNCTION
-dns_type_to_string(int type)
-{
-    struct stot *p = stot;
-    for(p = stot; p->name; p++)
-	if(type == p->type)
-	    return p->name;
-    return NULL;
-}
-
-#if (defined(HAVE_RES_SEARCH) || defined(HAVE_RES_NSEARCH)) && defined(HAVE_DN_EXPAND)
-
-static void
-dns_free_rr(struct resource_record *rr)
-{
-    if(rr->domain)
-	free(rr->domain);
-    if(rr->u.data)
-	free(rr->u.data);
-    free(rr);
-}
-
-void ROKEN_LIB_FUNCTION
-dns_free_data(struct dns_reply *r)
-{
-    struct resource_record *rr;
-    if(r->q.domain)
-	free(r->q.domain);
-    for(rr = r->head; rr;){
-	struct resource_record *tmp = rr;
-	rr = rr->next;
-	dns_free_rr(tmp);
-    }
-    free (r);
-}
-
-static int
-parse_record(const unsigned char *data, const unsigned char *end_data, 
-	     const unsigned char **pp, struct resource_record **ret_rr)
-{
-    struct resource_record *rr;
-    int type, class, ttl, size;
-    int status;
-    char host[MAXDNAME];
-    const unsigned char *p = *pp;
-
-    *ret_rr = NULL;
-
-    status = dn_expand(data, end_data, p, host, sizeof(host));
-    if(status < 0) 
-	return -1;
-    if (p + status + 10 > end_data)
-	return -1;
-
-    p += status;
-    type = (p[0] << 8) | p[1];
-    p += 2;
-    class = (p[0] << 8) | p[1];
-    p += 2;
-    ttl = (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3];
-    p += 4;
-    size = (p[0] << 8) | p[1];
-    p += 2;
-
-    if (p + size > end_data)
-	return -1;
-
-    rr = calloc(1, sizeof(*rr));
-    if(rr == NULL) 
-	return -1;
-    rr->domain = strdup(host);
-    if(rr->domain == NULL) {
-	dns_free_rr(rr);
-	return -1;
-    }
-    rr->type = type;
-    rr->class = class;
-    rr->ttl = ttl;
-    rr->size = size;
-    switch(type){
-    case rk_ns_t_ns:
-    case rk_ns_t_cname:
-    case rk_ns_t_ptr:
-	status = dn_expand(data, end_data, p, host, sizeof(host));
-	if(status < 0) {
-	    dns_free_rr(rr);
-	    return -1;
-	}
-	rr->u.txt = strdup(host);
-	if(rr->u.txt == NULL) {
-	    dns_free_rr(rr);
-	    return -1;
-	}
-	break;
-    case rk_ns_t_mx:
-    case rk_ns_t_afsdb:{
-	size_t hostlen;
-
-	status = dn_expand(data, end_data, p + 2, host, sizeof(host));
-	if(status < 0){
-	    dns_free_rr(rr);
-	    return -1;
-	}
-	if (status + 2 > size) {
-	    dns_free_rr(rr);
-	    return -1;
-	}
-
-	hostlen = strlen(host);
-	rr->u.mx = (struct mx_record*)malloc(sizeof(struct mx_record) + 
-						hostlen);
-	if(rr->u.mx == NULL) {
-	    dns_free_rr(rr);
-	    return -1;
-	}
-	rr->u.mx->preference = (p[0] << 8) | p[1];
-	strlcpy(rr->u.mx->domain, host, hostlen + 1);
-	break;
-    }
-    case rk_ns_t_srv:{
-	size_t hostlen;
-	status = dn_expand(data, end_data, p + 6, host, sizeof(host));
-	if(status < 0){
-	    dns_free_rr(rr);
-	    return -1;
-	}
-	if (status + 6 > size) {
-	    dns_free_rr(rr);
-	    return -1;
-	}
-
-	hostlen = strlen(host);
-	rr->u.srv = 
-	    (struct srv_record*)malloc(sizeof(struct srv_record) + 
-				       hostlen);
-	if(rr->u.srv == NULL) {
-	    dns_free_rr(rr);
-	    return -1;
-	}
-	rr->u.srv->priority = (p[0] << 8) | p[1];
-	rr->u.srv->weight = (p[2] << 8) | p[3];
-	rr->u.srv->port = (p[4] << 8) | p[5];
-	strlcpy(rr->u.srv->target, host, hostlen + 1);
-	break;
-    }
-    case rk_ns_t_txt:{
-	if(size == 0 || size < *p + 1) {
-	    dns_free_rr(rr);
-	    return -1;
-	}
-	rr->u.txt = (char*)malloc(*p + 1);
-	if(rr->u.txt == NULL) {
-	    dns_free_rr(rr);
-	    return -1;
-	}
-	strncpy(rr->u.txt, (const char*)(p + 1), *p);
-	rr->u.txt[*p] = '\0';
-	break;
-    }
-    case rk_ns_t_key : {
-	size_t key_len;
-
-	if (size < 4) {
-	    dns_free_rr(rr);
-	    return -1;
-	}
-
-	key_len = size - 4;
-	rr->u.key = malloc (sizeof(*rr->u.key) + key_len - 1);
-	if (rr->u.key == NULL) {
-	    dns_free_rr(rr);
-	    return -1;
-	}
-
-	rr->u.key->flags     = (p[0] << 8) | p[1];
-	rr->u.key->protocol  = p[2];
-	rr->u.key->algorithm = p[3];
-	rr->u.key->key_len   = key_len;
-	memcpy (rr->u.key->key_data, p + 4, key_len);
-	break;
-    }
-    case rk_ns_t_sig : {
-	size_t sig_len, hostlen;
-
-	if(size <= 18) {
-	    dns_free_rr(rr);
-	    return -1;
-	}
-	status = dn_expand (data, end_data, p + 18, host, sizeof(host));
-	if (status < 0) {
-	    dns_free_rr(rr);
-	    return -1;
-	}
-	if (status + 18 > size) {
-	    dns_free_rr(rr);
-	    return -1;
-	}
-
-	/* the signer name is placed after the sig_data, to make it
-           easy to free this structure; the size calculation below
-           includes the zero-termination if the structure itself.
-	   don't you just love C?
-	*/
-	sig_len = size - 18 - status;
-	hostlen = strlen(host);
-	rr->u.sig = malloc(sizeof(*rr->u.sig)
-			      + hostlen + sig_len);
-	if (rr->u.sig == NULL) {
-	    dns_free_rr(rr);
-	    return -1;
-	}
-	rr->u.sig->type           = (p[0] << 8) | p[1];
-	rr->u.sig->algorithm      = p[2];
-	rr->u.sig->labels         = p[3];
-	rr->u.sig->orig_ttl       = (p[4] << 24) | (p[5] << 16)
-	    | (p[6] << 8) | p[7];
-	rr->u.sig->sig_expiration = (p[8] << 24) | (p[9] << 16)
-	    | (p[10] << 8) | p[11];
-	rr->u.sig->sig_inception  = (p[12] << 24) | (p[13] << 16)
-	    | (p[14] << 8) | p[15];
-	rr->u.sig->key_tag        = (p[16] << 8) | p[17];
-	rr->u.sig->sig_len        = sig_len;
-	memcpy (rr->u.sig->sig_data, p + 18 + status, sig_len);
-	rr->u.sig->signer         = &rr->u.sig->sig_data[sig_len];
-	strlcpy(rr->u.sig->signer, host, hostlen + 1);
-	break;
-    }
-
-    case rk_ns_t_cert : {
-	size_t cert_len;
-
-	if (size < 5) {
-	    dns_free_rr(rr);
-	    return -1;
-	}
-
-	cert_len = size - 5;
-	rr->u.cert = malloc (sizeof(*rr->u.cert) + cert_len - 1);
-	if (rr->u.cert == NULL) {
-	    dns_free_rr(rr);
-	    return -1;
-	}
-
-	rr->u.cert->type      = (p[0] << 8) | p[1];
-	rr->u.cert->tag       = (p[2] << 8) | p[3];
-	rr->u.cert->algorithm = p[4];
-	rr->u.cert->cert_len  = cert_len;
-	memcpy (rr->u.cert->cert_data, p + 5, cert_len);
-	break;
-    }
-    case rk_ns_t_sshfp : {
-	size_t sshfp_len;
-
-	if (size < 2) {
-	    dns_free_rr(rr);
-	    return -1;
-	}
-
-	sshfp_len = size - 2;
-
-	rr->u.sshfp = malloc (sizeof(*rr->u.sshfp) + sshfp_len - 1);
-	if (rr->u.sshfp == NULL) {
-	    dns_free_rr(rr);
-	    return -1;
-	}
-
-	rr->u.sshfp->algorithm = p[0];
-	rr->u.sshfp->type      = p[1];
-	rr->u.sshfp->sshfp_len  = sshfp_len;
-	memcpy (rr->u.sshfp->sshfp_data, p + 2, sshfp_len);
-	break;
-    }
-    case rk_ns_t_ds: {
-	size_t digest_len;
-
-	if (size < 4) {
-	    dns_free_rr(rr);
-	    return -1;
-	}
-
-	digest_len = size - 4;
-
-	rr->u.ds = malloc (sizeof(*rr->u.ds) + digest_len - 1);
-	if (rr->u.ds == NULL) {
-	    dns_free_rr(rr);
-	    return -1;
-	}
-
-	rr->u.ds->key_tag     = (p[0] << 8) | p[1];
-	rr->u.ds->algorithm   = p[2];
-	rr->u.ds->digest_type = p[3];
-	rr->u.ds->digest_len  = digest_len;
-	memcpy (rr->u.ds->digest_data, p + 4, digest_len);
-	break;
-    }
-    default:
-	rr->u.data = (unsigned char*)malloc(size);
-	if(size != 0 && rr->u.data == NULL) {
-	    dns_free_rr(rr);
-	    return -1;
-	}
-	if (size)
-	    memcpy(rr->u.data, p, size);
-    }
-    *pp = p + size;
-    *ret_rr = rr;
-
-    return 0;
-}
-
-#ifndef TEST_RESOLVE
-static
-#endif
-struct dns_reply*
-parse_reply(const unsigned char *data, size_t len)
-{
-    const unsigned char *p;
-    int status;
-    int i;
-    char host[MAXDNAME];
-    const unsigned char *end_data = data + len;
-    struct dns_reply *r;
-    struct resource_record **rr;
-    
-    r = calloc(1, sizeof(*r));
-    if (r == NULL)
-	return NULL;
-
-    p = data;
-
-    r->h.id = (p[0] << 8) | p[1];
-    r->h.flags = 0;
-    if (p[2] & 0x01)
-	r->h.flags |= rk_DNS_HEADER_RESPONSE_FLAG;
-    r->h.opcode = (p[2] >> 1) & 0xf;
-    if (p[2] & 0x20)
-	r->h.flags |= rk_DNS_HEADER_AUTHORITIVE_ANSWER;
-    if (p[2] & 0x40)
-	r->h.flags |= rk_DNS_HEADER_TRUNCATED_MESSAGE;
-    if (p[2] & 0x80)
-	r->h.flags |= rk_DNS_HEADER_RECURSION_DESIRED;
-    if (p[3] & 0x01)
-	r->h.flags |= rk_DNS_HEADER_RECURSION_AVAILABLE;
-    if (p[3] & 0x04)
-	r->h.flags |= rk_DNS_HEADER_AUTHORITIVE_ANSWER;
-    if (p[3] & 0x08)
-	r->h.flags |= rk_DNS_HEADER_CHECKING_DISABLED;
-    r->h.response_code = (p[3] >> 4) & 0xf;
-    r->h.qdcount = (p[4] << 8) | p[5];
-    r->h.ancount = (p[6] << 8) | p[7];
-    r->h.nscount = (p[8] << 8) | p[9];
-    r->h.arcount = (p[10] << 8) | p[11];
-
-    p += 12;
-
-    if(r->h.qdcount != 1) {
-	free(r);
-	return NULL;
-    }
-    status = dn_expand(data, end_data, p, host, sizeof(host));
-    if(status < 0){
-	dns_free_data(r);
-	return NULL;
-    }
-    r->q.domain = strdup(host);
-    if(r->q.domain == NULL) {
-	dns_free_data(r);
-	return NULL;
-    }
-    if (p + status + 4 > end_data) {
-	dns_free_data(r);
-	return NULL;
-    }
-    p += status;
-    r->q.type = (p[0] << 8 | p[1]);
-    p += 2;
-    r->q.class = (p[0] << 8 | p[1]);
-    p += 2;
-    
-    rr = &r->head;
-    for(i = 0; i < r->h.ancount; i++) {
-	if(parse_record(data, end_data, &p, rr) != 0) {
-	    dns_free_data(r);
-	    return NULL;
-	}
-	rr = &(*rr)->next;
-    }
-    for(i = 0; i < r->h.nscount; i++) {
-	if(parse_record(data, end_data, &p, rr) != 0) {
-	    dns_free_data(r);
-	    return NULL;
-	}
-	rr = &(*rr)->next;
-    }
-    for(i = 0; i < r->h.arcount; i++) {
-	if(parse_record(data, end_data, &p, rr) != 0) {
-	    dns_free_data(r);
-	    return NULL;
-	}
-	rr = &(*rr)->next;
-    }
-    *rr = NULL;
-    return r;
-}
-
-#ifdef HAVE_RES_NSEARCH
-#ifdef HAVE_RES_NDESTROY
-#define rk_res_free(x) res_ndestroy(x)
-#else
-#define rk_res_free(x) res_nclose(x)
-#endif
-#endif
-
-static struct dns_reply *
-dns_lookup_int(const char *domain, int rr_class, int rr_type)
-{
-    struct dns_reply *r;
-    unsigned char *reply = NULL;
-    int size;
-    int len;
-#ifdef HAVE_RES_NSEARCH
-    struct __res_state state;
-    memset(&state, 0, sizeof(state));
-    if(res_ninit(&state))
-	return NULL; /* is this the best we can do? */
-#elif defined(HAVE__RES)
-    u_long old_options = 0;
-#endif
-    
-    size = 0;
-    len = 1000;
-    do {
-	if (reply) {
-	    free(reply);
-	    reply = NULL;
-	}
-	if (size <= len)
-	    size = len;
-	if (_resolve_debug) {
-#ifdef HAVE_RES_NSEARCH
-	    state.options |= RES_DEBUG;
-#elif defined(HAVE__RES)
-	    old_options = _res.options;
-	    _res.options |= RES_DEBUG;
-#endif
-	    fprintf(stderr, "dns_lookup(%s, %d, %s), buffer size %d\n", domain,
-		    rr_class, dns_type_to_string(rr_type), size);
-	}
-	reply = malloc(size);
-	if (reply == NULL) {
-#ifdef HAVE_RES_NSEARCH
-	    rk_res_free(&state);
-#endif
-	    return NULL;
-	}
-#ifdef HAVE_RES_NSEARCH
-	len = res_nsearch(&state, domain, rr_class, rr_type, reply, size);
-#else
-	len = res_search(domain, rr_class, rr_type, reply, size);
-#endif
-	if (_resolve_debug) {
-#if defined(HAVE__RES) && !defined(HAVE_RES_NSEARCH)
-	    _res.options = old_options;
-#endif
-	    fprintf(stderr, "dns_lookup(%s, %d, %s) --> %d\n",
-		    domain, rr_class, dns_type_to_string(rr_type), len);
-	}
-	if (len < 0) {
-#ifdef HAVE_RES_NSEARCH
-	    rk_res_free(&state);
-#endif
-	    free(reply);
-	    return NULL;
-	}
-    } while (size < len && len < rk_DNS_MAX_PACKET_SIZE);
-#ifdef HAVE_RES_NSEARCH
-    rk_res_free(&state);
-#endif
-
-    len = min(len, size);
-    r = parse_reply(reply, len);
-    free(reply);
-    return r;
-}
-
-struct dns_reply * ROKEN_LIB_FUNCTION
-dns_lookup(const char *domain, const char *type_name)
-{
-    int type;
-    
-    type = dns_string_to_type(type_name);
-    if(type == -1) {
-	if(_resolve_debug)
-	    fprintf(stderr, "dns_lookup: unknown resource type: `%s'\n", 
-		    type_name);
-	return NULL;
-    }
-    return dns_lookup_int(domain, C_IN, type);
-}
-
-static int
-compare_srv(const void *a, const void *b)
-{
-    const struct resource_record *const* aa = a, *const* bb = b;
-
-    if((*aa)->u.srv->priority == (*bb)->u.srv->priority)
-	return ((*aa)->u.srv->weight - (*bb)->u.srv->weight);
-    return ((*aa)->u.srv->priority - (*bb)->u.srv->priority);
-}
-
-#ifndef HAVE_RANDOM
-#define random() rand()
-#endif
-
-/* try to rearrange the srv-records by the algorithm in RFC2782 */
-void ROKEN_LIB_FUNCTION
-dns_srv_order(struct dns_reply *r)
-{
-    struct resource_record **srvs, **ss, **headp;
-    struct resource_record *rr;
-    int num_srv = 0;
-
-#if defined(HAVE_INITSTATE) && defined(HAVE_SETSTATE)
-    int state[256 / sizeof(int)];
-    char *oldstate;
-#endif
-
-    for(rr = r->head; rr; rr = rr->next) 
-	if(rr->type == rk_ns_t_srv)
-	    num_srv++;
-
-    if(num_srv == 0)
-	return;
-
-    srvs = malloc(num_srv * sizeof(*srvs));
-    if(srvs == NULL)
-	return; /* XXX not much to do here */
-    
-    /* unlink all srv-records from the linked list and put them in
-       a vector */
-    for(ss = srvs, headp = &r->head; *headp; )
-	if((*headp)->type == rk_ns_t_srv) {
-	    *ss = *headp;
-	    *headp = (*headp)->next;
-	    (*ss)->next = NULL;
-	    ss++;
-	} else
-	    headp = &(*headp)->next;
-    
-    /* sort them by priority and weight */
-    qsort(srvs, num_srv, sizeof(*srvs), compare_srv);
-
-#if defined(HAVE_INITSTATE) && defined(HAVE_SETSTATE)
-    oldstate = initstate(time(NULL), (char*)state, sizeof(state));
-#endif
-
-    headp = &r->head;
-    
-    for(ss = srvs; ss < srvs + num_srv; ) {
-	int sum, rnd, count;
-	struct resource_record **ee, **tt;
-	/* find the last record with the same priority and count the
-           sum of all weights */
-	for(sum = 0, tt = ss; tt < srvs + num_srv; tt++) {
-	    assert(*tt != NULL);
-	    if((*tt)->u.srv->priority != (*ss)->u.srv->priority)
-		break;
-	    sum += (*tt)->u.srv->weight;
-	}
-	ee = tt;
-	/* ss is now the first record of this priority and ee is the
-           first of the next */
-	while(ss < ee) {
-	    rnd = random() % (sum + 1);
-	    for(count = 0, tt = ss; ; tt++) {
-		if(*tt == NULL)
-		    continue;
-		count += (*tt)->u.srv->weight;
-		if(count >= rnd)
-		    break;
-	    }
-
-	    assert(tt < ee);
-
-	    /* insert the selected record at the tail (of the head) of
-               the list */
-	    (*tt)->next = *headp;
-	    *headp = *tt;
-	    headp = &(*tt)->next;
-	    sum -= (*tt)->u.srv->weight;
-	    *tt = NULL;
-	    while(ss < ee && *ss == NULL)
-		ss++;
-	}
-    }
-    
-#if defined(HAVE_INITSTATE) && defined(HAVE_SETSTATE)
-    setstate(oldstate);
-#endif
-    free(srvs);
-    return;
-}
-
-#else /* NOT defined(HAVE_RES_SEARCH) && defined(HAVE_DN_EXPAND) */
-
-struct dns_reply * ROKEN_LIB_FUNCTION
-dns_lookup(const char *domain, const char *type_name)
-{
-    return NULL;
-}
-
-void ROKEN_LIB_FUNCTION
-dns_free_data(struct dns_reply *r)
-{
-}
-
-void ROKEN_LIB_FUNCTION
-dns_srv_order(struct dns_reply *r)
-{
-}
-
-#endif