From c5544522f6409095627dc3d1129560195ab4ec40 Mon Sep 17 00:00:00 2001 From: Trent Lloyd Date: Sat, 4 Jun 2005 18:56:52 +0000 Subject: * Split out a fair bit of avahi-core into avahi-common for use by the client library git-svn-id: file:///home/lennart/svn/public/avahi/trunk@98 941a03a8-eaeb-0310-b9a0-b1bbd8fe43fe --- avahi-core/rr.c | 551 -------------------------------------------------------- 1 file changed, 551 deletions(-) delete mode 100644 avahi-core/rr.c (limited to 'avahi-core/rr.c') diff --git a/avahi-core/rr.c b/avahi-core/rr.c deleted file mode 100644 index c7f7d2c..0000000 --- a/avahi-core/rr.c +++ /dev/null @@ -1,551 +0,0 @@ -/* $Id$ */ - -/*** - This file is part of avahi. - - avahi is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - avahi is distributed in the hope that it will be useful, but WITHOUT - ANY WARRANTY; without even the implied warranty of MERCHANTABILITY - or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General - Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with avahi; if not, write to the Free Software - Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 - USA. -***/ - -#ifdef HAVE_CONFIG_H -#include -#endif - -#include -#include -#include -#include -#include - -#include "util.h" -#include "rr.h" -#include "dns.h" - -AvahiKey *avahi_key_new(const gchar *name, guint16 class, guint16 type) { - AvahiKey *k; - g_assert(name); - - k = g_new(AvahiKey, 1); - k->ref = 1; - k->name = avahi_normalize_name(name); - k->class = class; - k->type = type; - -/* g_message("%p %% ref=1", k); */ - - return k; -} - -AvahiKey *avahi_key_ref(AvahiKey *k) { - g_assert(k); - g_assert(k->ref >= 1); - - k->ref++; - -/* g_message("%p ++ ref=%i", k, k->ref); */ - - return k; -} - -void avahi_key_unref(AvahiKey *k) { - g_assert(k); - g_assert(k->ref >= 1); - -/* g_message("%p -- ref=%i", k, k->ref-1); */ - - if ((--k->ref) <= 0) { - g_free(k->name); - g_free(k); - } -} - -AvahiRecord *avahi_record_new(AvahiKey *k) { - AvahiRecord *r; - - g_assert(k); - - r = g_new(AvahiRecord, 1); - r->ref = 1; - r->key = avahi_key_ref(k); - - memset(&r->data, 0, sizeof(r->data)); - - r->ttl = AVAHI_DEFAULT_TTL; - - return r; -} - -AvahiRecord *avahi_record_new_full(const gchar *name, guint16 class, guint16 type) { - AvahiRecord *r; - AvahiKey *k; - - g_assert(name); - - k = avahi_key_new(name, class, type); - r = avahi_record_new(k); - avahi_key_unref(k); - - return r; -} - -AvahiRecord *avahi_record_ref(AvahiRecord *r) { - g_assert(r); - g_assert(r->ref >= 1); - - r->ref++; - return r; -} - -void avahi_record_unref(AvahiRecord *r) { - g_assert(r); - g_assert(r->ref >= 1); - - if ((--r->ref) <= 0) { - switch (r->key->type) { - - case AVAHI_DNS_TYPE_SRV: - g_free(r->data.srv.name); - break; - - case AVAHI_DNS_TYPE_PTR: - case AVAHI_DNS_TYPE_CNAME: - g_free(r->data.ptr.name); - break; - - case AVAHI_DNS_TYPE_HINFO: - g_free(r->data.hinfo.cpu); - g_free(r->data.hinfo.os); - break; - - case AVAHI_DNS_TYPE_TXT: - avahi_string_list_free(r->data.txt.string_list); - break; - - case AVAHI_DNS_TYPE_A: - case AVAHI_DNS_TYPE_AAAA: - break; - - default: - g_free(r->data.generic.data); - } - - avahi_key_unref(r->key); - g_free(r); - } -} - -const gchar *avahi_dns_class_to_string(guint16 class) { - if (class & AVAHI_DNS_CACHE_FLUSH) - return "FLUSH"; - - if (class == AVAHI_DNS_CLASS_IN) - return "IN"; - - return NULL; -} - -const gchar *avahi_dns_type_to_string(guint16 type) { - switch (type) { - case AVAHI_DNS_TYPE_CNAME: - return "CNAME"; - case AVAHI_DNS_TYPE_A: - return "A"; - case AVAHI_DNS_TYPE_AAAA: - return "AAAA"; - case AVAHI_DNS_TYPE_PTR: - return "PTR"; - case AVAHI_DNS_TYPE_HINFO: - return "HINFO"; - case AVAHI_DNS_TYPE_TXT: - return "TXT"; - case AVAHI_DNS_TYPE_SRV: - return "SRV"; - case AVAHI_DNS_TYPE_ANY: - return "ANY"; - default: - return NULL; - } -} - - -gchar *avahi_key_to_string(const AvahiKey *k) { - g_assert(k); - g_assert(k->ref >= 1); - - return g_strdup_printf("%s\t%s\t%s", - k->name, - avahi_dns_class_to_string(k->class), - avahi_dns_type_to_string(k->type)); -} - -gchar *avahi_record_to_string(const AvahiRecord *r) { - gchar *p, *s; - char buf[257], *t = NULL, *d = NULL; - - g_assert(r); - g_assert(r->ref >= 1); - - switch (r->key->type) { - case AVAHI_DNS_TYPE_A: - inet_ntop(AF_INET, &r->data.a.address.address, t = buf, sizeof(buf)); - break; - - case AVAHI_DNS_TYPE_AAAA: - inet_ntop(AF_INET6, &r->data.aaaa.address.address, t = buf, sizeof(buf)); - break; - - case AVAHI_DNS_TYPE_PTR: - case AVAHI_DNS_TYPE_CNAME : - - t = r->data.ptr.name; - break; - - case AVAHI_DNS_TYPE_TXT: - t = d = avahi_string_list_to_string(r->data.txt.string_list); - break; - - case AVAHI_DNS_TYPE_HINFO: - - snprintf(t = buf, sizeof(buf), "\"%s\" \"%s\"", r->data.hinfo.cpu, r->data.hinfo.os); - break; - - case AVAHI_DNS_TYPE_SRV: - - snprintf(t = buf, sizeof(buf), "%u %u %u %s", - r->data.srv.priority, - r->data.srv.weight, - r->data.srv.port, - r->data.srv.name); - - break; - } - - p = avahi_key_to_string(r->key); - s = g_strdup_printf("%s %s ; ttl=%u", p, t ? t : "", r->ttl); - g_free(p); - g_free(d); - - return s; -} - -gboolean avahi_key_equal(const AvahiKey *a, const AvahiKey *b) { - g_assert(a); - g_assert(b); - - if (a == b) - return TRUE; - -/* g_message("equal: %p %p", a, b); */ - - return avahi_domain_equal(a->name, b->name) && - a->type == b->type && - a->class == b->class; -} - -gboolean avahi_key_pattern_match(const AvahiKey *pattern, const AvahiKey *k) { - g_assert(pattern); - g_assert(k); - -/* g_message("equal: %p %p", a, b); */ - - g_assert(!avahi_key_is_pattern(k)); - - if (pattern == k) - return TRUE; - - return avahi_domain_equal(pattern->name, k->name) && - (pattern->type == k->type || pattern->type == AVAHI_DNS_TYPE_ANY) && - pattern->class == k->class; -} - -gboolean avahi_key_is_pattern(const AvahiKey *k) { - g_assert(k); - - return k->type == AVAHI_DNS_TYPE_ANY; -} - - -guint avahi_key_hash(const AvahiKey *k) { - g_assert(k); - - return - avahi_domain_hash(k->name) + - k->type + - k->class; -} - -static gboolean rdata_equal(const AvahiRecord *a, const AvahiRecord *b) { - g_assert(a); - g_assert(b); - g_assert(a->key->type == b->key->type); - -/* t = avahi_record_to_string(a); */ -/* g_message("comparing %s", t); */ -/* g_free(t); */ - -/* t = avahi_record_to_string(b); */ -/* g_message("and %s", t); */ -/* g_free(t); */ - - - switch (a->key->type) { - case AVAHI_DNS_TYPE_SRV: - return - a->data.srv.priority == b->data.srv.priority && - a->data.srv.weight == b->data.srv.weight && - a->data.srv.port == b->data.srv.port && - avahi_domain_equal(a->data.srv.name, b->data.srv.name); - - case AVAHI_DNS_TYPE_PTR: - case AVAHI_DNS_TYPE_CNAME: - return avahi_domain_equal(a->data.ptr.name, b->data.ptr.name); - - case AVAHI_DNS_TYPE_HINFO: - return - !g_utf8_collate(a->data.hinfo.cpu, b->data.hinfo.cpu) && - !g_utf8_collate(a->data.hinfo.os, b->data.hinfo.os); - - case AVAHI_DNS_TYPE_TXT: - return avahi_string_list_equal(a->data.txt.string_list, b->data.txt.string_list); - - case AVAHI_DNS_TYPE_A: - return memcmp(&a->data.a.address, &b->data.a.address, sizeof(AvahiIPv4Address)) == 0; - - case AVAHI_DNS_TYPE_AAAA: - return memcmp(&a->data.aaaa.address, &b->data.aaaa.address, sizeof(AvahiIPv6Address)) == 0; - - default: - return a->data.generic.size == b->data.generic.size && - (a->data.generic.size == 0 || memcmp(a->data.generic.data, b->data.generic.data, a->data.generic.size) == 0); - } - -} - -gboolean avahi_record_equal_no_ttl(const AvahiRecord *a, const AvahiRecord *b) { - g_assert(a); - g_assert(b); - - if (a == b) - return TRUE; - - return - avahi_key_equal(a->key, b->key) && - rdata_equal(a, b); -} - - -AvahiRecord *avahi_record_copy(AvahiRecord *r) { - AvahiRecord *copy; - - copy = g_new(AvahiRecord, 1); - copy->ref = 1; - copy->key = avahi_key_ref(r->key); - copy->ttl = r->ttl; - - switch (r->key->type) { - case AVAHI_DNS_TYPE_PTR: - case AVAHI_DNS_TYPE_CNAME: - copy->data.ptr.name = g_strdup(r->data.ptr.name); - break; - - case AVAHI_DNS_TYPE_SRV: - copy->data.srv.priority = r->data.srv.priority; - copy->data.srv.weight = r->data.srv.weight; - copy->data.srv.port = r->data.srv.port; - copy->data.srv.name = g_strdup(r->data.srv.name); - break; - - case AVAHI_DNS_TYPE_HINFO: - copy->data.hinfo.os = g_strdup(r->data.hinfo.os); - copy->data.hinfo.cpu = g_strdup(r->data.hinfo.cpu); - break; - - case AVAHI_DNS_TYPE_TXT: - copy->data.txt.string_list = avahi_string_list_copy(r->data.txt.string_list); - break; - - case AVAHI_DNS_TYPE_A: - copy->data.a.address = r->data.a.address; - break; - - case AVAHI_DNS_TYPE_AAAA: - copy->data.aaaa.address = r->data.aaaa.address; - break; - - default: - copy->data.generic.data = g_memdup(r->data.generic.data, r->data.generic.size); - copy->data.generic.size = r->data.generic.size; - break; - - } - - return copy; -} - - -guint avahi_key_get_estimate_size(AvahiKey *k) { - g_assert(k); - - return strlen(k->name)+1+4; -} - -guint avahi_record_get_estimate_size(AvahiRecord *r) { - guint n; - g_assert(r); - - n = avahi_key_get_estimate_size(r->key) + 4 + 2; - - switch (r->key->type) { - case AVAHI_DNS_TYPE_PTR: - case AVAHI_DNS_TYPE_CNAME: - n += strlen(r->data.ptr.name) + 1; - break; - - case AVAHI_DNS_TYPE_SRV: - n += 6 + strlen(r->data.srv.name) + 1; - break; - - case AVAHI_DNS_TYPE_HINFO: - n += strlen(r->data.hinfo.os) + 1 + strlen(r->data.hinfo.cpu) + 1; - break; - - case AVAHI_DNS_TYPE_TXT: - n += avahi_string_list_serialize(r->data.txt.string_list, NULL, 0); - break; - - case AVAHI_DNS_TYPE_A: - n += sizeof(AvahiIPv4Address); - break; - - case AVAHI_DNS_TYPE_AAAA: - n += sizeof(AvahiIPv6Address); - break; - - default: - n += r->data.generic.size; - } - - return n; -} - -static gint lexicographical_memcmp(gconstpointer a, size_t al, gconstpointer b, size_t bl) { - size_t c; - gint ret; - - g_assert(a); - g_assert(b); - - c = al < bl ? al : bl; - if ((ret = memcmp(a, b, c))) - return ret; - - if (al == bl) - return 0; - else - return al == c ? 1 : -1; -} - -static gint uint16_cmp(guint16 a, guint16 b) { - return a == b ? 0 : (a < b ? -1 : 1); -} - -gint avahi_record_lexicographical_compare(AvahiRecord *a, AvahiRecord *b) { - gint r; -/* gchar *t1, *t2; */ - - g_assert(a); - g_assert(b); - -/* t1 = avahi_record_to_string(a); */ -/* t2 = avahi_record_to_string(b); */ -/* g_message("lexicocmp: %s %s", t1, t2); */ -/* g_free(t1); */ -/* g_free(t2); */ - - if (a == b) - return 0; - - if ((r = uint16_cmp(a->key->class, b->key->class)) || - (r = uint16_cmp(a->key->type, b->key->type))) - return r; - - switch (a->key->type) { - - case AVAHI_DNS_TYPE_PTR: - case AVAHI_DNS_TYPE_CNAME: - return avahi_binary_domain_cmp(a->data.ptr.name, b->data.ptr.name); - - case AVAHI_DNS_TYPE_SRV: { - if ((r = uint16_cmp(a->data.srv.priority, b->data.srv.priority)) == 0 && - (r = uint16_cmp(a->data.srv.weight, b->data.srv.weight)) == 0 && - (r = uint16_cmp(a->data.srv.port, b->data.srv.port)) == 0) - r = avahi_binary_domain_cmp(a->data.srv.name, b->data.srv.name); - - return r; - } - - case AVAHI_DNS_TYPE_HINFO: { - - if ((r = strcmp(a->data.hinfo.cpu, b->data.hinfo.cpu)) || - (r = strcmp(a->data.hinfo.os, b->data.hinfo.os))) - return r; - - return 0; - - } - - case AVAHI_DNS_TYPE_TXT: { - - guint8 *ma, *mb; - guint asize, bsize; - - ma = g_new(guint8, asize = avahi_string_list_serialize(a->data.txt.string_list, NULL, 0)); - mb = g_new(guint8, bsize = avahi_string_list_serialize(b->data.txt.string_list, NULL, 0)); - avahi_string_list_serialize(a->data.txt.string_list, ma, asize); - avahi_string_list_serialize(b->data.txt.string_list, mb, bsize); - - if (asize && bsize) - r = lexicographical_memcmp(ma, asize, mb, bsize); - else if (asize && !bsize) - r = 1; - else if (!asize && bsize) - r = -1; - else - r = 0; - - g_free(ma); - g_free(mb); - - return r; - } - - case AVAHI_DNS_TYPE_A: - return memcmp(&a->data.a.address, &b->data.a.address, sizeof(AvahiIPv4Address)); - - case AVAHI_DNS_TYPE_AAAA: - return memcmp(&a->data.aaaa.address, &b->data.aaaa.address, sizeof(AvahiIPv6Address)); - - default: - return lexicographical_memcmp(a->data.generic.data, a->data.generic.size, - b->data.generic.data, b->data.generic.size); - } - -} - -gboolean avahi_record_is_goodbye(AvahiRecord *r) { - g_assert(r); - - return r->ttl == 0; -} -- cgit