--- /dev/null
+/***
+ 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 <config.h>
+#endif
+
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include <stdio.h>
+#include <assert.h>
+#include <stdlib.h>
+
+#include <arpa/inet.h>
+
+#include <sys/utsname.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#include <avahi/domain.h>
+#include <avahi/timeval.h>
+#include <avahi/malloc.h>
+#include <avahi/error.h>
+#include <avahi/domain.h>
+#include <avahi/log.h>
+
+#include "internal.h"
+#include "iface.h"
+#include "socket.h"
+#include "browse.h"
+#include "util.h"
+#include "dns-srv-rr.h"
+#include "rr-util.h"
+#include "domain-util.h"
+
+static void transport_flags_from_domain(AvahiServer *s, AvahiPublishFlags *flags, const char *domain) {
+ assert(flags);
+ assert(domain);
+
+ assert(!((*flags & AVAHI_PUBLISH_USE_MULTICAST) && (*flags & AVAHI_PUBLISH_USE_WIDE_AREA)));
+
+ if (*flags & (AVAHI_PUBLISH_USE_MULTICAST|AVAHI_PUBLISH_USE_WIDE_AREA))
+ return;
+
+ if (!s->wide_area_lookup_engine ||
+ !avahi_wide_area_has_servers(s->wide_area_lookup_engine) ||
+ avahi_domain_ends_with(domain, AVAHI_MDNS_SUFFIX_LOCAL) ||
+ avahi_domain_ends_with(domain, AVAHI_MDNS_SUFFIX_ADDR_IPV4) ||
+ avahi_domain_ends_with(domain, AVAHI_MDNS_SUFFIX_ADDR_IPV6))
+ *flags |= AVAHI_PUBLISH_USE_MULTICAST;
+ else
+ *flags |= AVAHI_PUBLISH_USE_WIDE_AREA;
+}
+
+void avahi_entry_free(AvahiServer*s, AvahiEntry *e) {
+ AvahiEntry *t;
+
+ assert(s);
+ assert(e);
+
+ avahi_goodbye_entry(s, e, 1, 1);
+
+ /* Remove from linked list */
+ AVAHI_LLIST_REMOVE(AvahiEntry, entries, s->entries, e);
+
+ /* Remove from hash table indexed by name */
+ t = avahi_hashmap_lookup(s->entries_by_key, e->record->key);
+ AVAHI_LLIST_REMOVE(AvahiEntry, by_key, t, e);
+ if (t)
+ avahi_hashmap_replace(s->entries_by_key, t->record->key, t);
+ else
+ avahi_hashmap_remove(s->entries_by_key, e->record->key);
+
+ /* Remove from associated group */
+ if (e->group)
+ AVAHI_LLIST_REMOVE(AvahiEntry, by_group, e->group->entries, e);
+
+ avahi_record_unref(e->record);
+ avahi_free(e);
+}
+
+void avahi_entry_group_free(AvahiServer *s, AvahiSEntryGroup *g) {
+ assert(s);
+ assert(g);
+
+ while (g->entries)
+ avahi_entry_free(s, g->entries);
+
+ if (g->register_time_event)
+ avahi_time_event_free(g->register_time_event);
+
+ AVAHI_LLIST_REMOVE(AvahiSEntryGroup, groups, s->groups, g);
+ avahi_free(g);
+}
+
+void avahi_cleanup_dead_entries(AvahiServer *s) {
+ assert(s);
+
+ if (s->need_group_cleanup) {
+ AvahiSEntryGroup *g, *next;
+
+ for (g = s->groups; g; g = next) {
+ next = g->groups_next;
+
+ if (g->dead)
+ avahi_entry_group_free(s, g);
+ }
+
+ s->need_group_cleanup = 0;
+ }
+
+ if (s->need_entry_cleanup) {
+ AvahiEntry *e, *next;
+
+ for (e = s->entries; e; e = next) {
+ next = e->entries_next;
+
+ if (e->dead)
+ avahi_entry_free(s, e);
+ }
+
+ s->need_entry_cleanup = 0;
+ }
+
+ if (s->need_browser_cleanup)
+ avahi_browser_cleanup(s);
+
+ if (s->cleanup_time_event) {
+ avahi_time_event_free(s->cleanup_time_event);
+ s->cleanup_time_event = NULL;
+ }
+}
+
+static int check_record_conflict(AvahiServer *s, AvahiIfIndex interface, AvahiProtocol protocol, AvahiRecord *r, AvahiPublishFlags flags) {
+ AvahiEntry *e;
+
+ assert(s);
+ assert(r);
+
+ for (e = avahi_hashmap_lookup(s->entries_by_key, r->key); e; e = e->by_key_next) {
+ if (e->dead)
+ continue;
+
+ if (!(flags & AVAHI_PUBLISH_UNIQUE) && !(e->flags & AVAHI_PUBLISH_UNIQUE))
+ continue;
+
+ if ((flags & AVAHI_PUBLISH_ALLOW_MULTIPLE) && (e->flags & AVAHI_PUBLISH_ALLOW_MULTIPLE) )
+ continue;
+
+ if (avahi_record_equal_no_ttl(r, e->record)) {
+ /* The records are the same, not a conflict in any case */
+ continue;
+ }
+
+ if ((interface <= 0 ||
+ e->interface <= 0 ||
+ e->interface == interface) &&
+ (protocol == AVAHI_PROTO_UNSPEC ||
+ e->protocol == AVAHI_PROTO_UNSPEC ||
+ e->protocol == protocol))
+
+ return -1;
+ }
+
+ return 0;
+}
+
+static AvahiEntry * server_add_internal(
+ AvahiServer *s,
+ AvahiSEntryGroup *g,
+ AvahiIfIndex interface,
+ AvahiProtocol protocol,
+ AvahiPublishFlags flags,
+ AvahiRecord *r) {
+
+ AvahiEntry *e;
+
+ assert(s);
+ assert(r);
+
+ AVAHI_CHECK_VALIDITY_RETURN_NULL(s, s->state != AVAHI_SERVER_FAILURE && s->state != AVAHI_SERVER_INVALID, AVAHI_ERR_BAD_STATE);
+ AVAHI_CHECK_VALIDITY_RETURN_NULL(s, AVAHI_IF_VALID(interface), AVAHI_ERR_INVALID_INTERFACE);
+ AVAHI_CHECK_VALIDITY_RETURN_NULL(s, AVAHI_PROTO_VALID(protocol), AVAHI_ERR_INVALID_PROTOCOL);
+ AVAHI_CHECK_VALIDITY_RETURN_NULL(s, AVAHI_FLAGS_VALID(
+ flags,
+ AVAHI_PUBLISH_NO_ANNOUNCE|
+ AVAHI_PUBLISH_NO_PROBE|
+ AVAHI_PUBLISH_UNIQUE|
+ AVAHI_PUBLISH_ALLOW_MULTIPLE|
+ AVAHI_PUBLISH_UPDATE|
+ AVAHI_PUBLISH_USE_WIDE_AREA|
+ AVAHI_PUBLISH_USE_MULTICAST), AVAHI_ERR_INVALID_FLAGS);
+ AVAHI_CHECK_VALIDITY_RETURN_NULL(s, avahi_is_valid_domain_name(r->key->name), AVAHI_ERR_INVALID_HOST_NAME);
+ AVAHI_CHECK_VALIDITY_RETURN_NULL(s, r->ttl != 0, AVAHI_ERR_INVALID_TTL);
+ AVAHI_CHECK_VALIDITY_RETURN_NULL(s, !avahi_key_is_pattern(r->key), AVAHI_ERR_IS_PATTERN);
+ AVAHI_CHECK_VALIDITY_RETURN_NULL(s, avahi_record_is_valid(r), AVAHI_ERR_INVALID_RECORD);
+ AVAHI_CHECK_VALIDITY_RETURN_NULL(s, r->key->clazz == AVAHI_DNS_CLASS_IN, AVAHI_ERR_INVALID_DNS_CLASS);
+ AVAHI_CHECK_VALIDITY_RETURN_NULL(s,
+ (r->key->type != 0) &&
+ (r->key->type != AVAHI_DNS_TYPE_ANY) &&
+ (r->key->type != AVAHI_DNS_TYPE_OPT) &&
+ (r->key->type != AVAHI_DNS_TYPE_TKEY) &&
+ (r->key->type != AVAHI_DNS_TYPE_TSIG) &&
+ (r->key->type != AVAHI_DNS_TYPE_IXFR) &&
+ (r->key->type != AVAHI_DNS_TYPE_AXFR), AVAHI_ERR_INVALID_DNS_TYPE);
+
+ transport_flags_from_domain(s, &flags, r->key->name);
+ AVAHI_CHECK_VALIDITY_RETURN_NULL(s, flags & AVAHI_PUBLISH_USE_MULTICAST, AVAHI_ERR_NOT_SUPPORTED);
+ AVAHI_CHECK_VALIDITY_RETURN_NULL(s, !s->config.disable_publishing, AVAHI_ERR_NOT_PERMITTED);
+ AVAHI_CHECK_VALIDITY_RETURN_NULL(s,
+ !g ||
+ (g->state != AVAHI_ENTRY_GROUP_ESTABLISHED && g->state != AVAHI_ENTRY_GROUP_REGISTERING) ||
+ (flags & AVAHI_PUBLISH_UPDATE), AVAHI_ERR_BAD_STATE);
+
+ if (flags & AVAHI_PUBLISH_UPDATE) {
+ AvahiRecord *old_record;
+ int is_first = 1;
+
+ /* Update and existing record */
+
+ /* Find the first matching entry */
+ for (e = avahi_hashmap_lookup(s->entries_by_key, r->key); e; e = e->by_key_next) {
+ if (!e->dead && e->group == g && e->interface == interface && e->protocol == protocol)
+ break;
+
+ is_first = 0;
+ }
+
+ /* Hmm, nothing found? */
+ if (!e) {
+ avahi_server_set_errno(s, AVAHI_ERR_NOT_FOUND);
+ return NULL;
+ }
+
+ /* Update the entry */
+ old_record = e->record;
+ e->record = avahi_record_ref(r);
+ e->flags = flags;
+
+ /* Announce our changes when needed */
+ if (!avahi_record_equal_no_ttl(old_record, r) && (!g || g->state != AVAHI_ENTRY_GROUP_UNCOMMITED)) {
+
+ /* Remove the old entry from all caches, if needed */
+ if (!(e->flags & AVAHI_PUBLISH_UNIQUE))
+ avahi_goodbye_entry(s, e, 1, 0);
+
+ /* Reannounce our updated entry */
+ avahi_reannounce_entry(s, e);
+ }
+
+ /* If we were the first entry in the list, we need to update the key */
+ if (is_first)
+ avahi_hashmap_replace(s->entries_by_key, e->record->key, e);
+
+ avahi_record_unref(old_record);
+
+ } else {
+ AvahiEntry *t;
+
+ /* Add a new record */
+
+ if (check_record_conflict(s, interface, protocol, r, flags) < 0) {
+ avahi_server_set_errno(s, AVAHI_ERR_COLLISION);
+ return NULL;
+ }
+
+ if (!(e = avahi_new(AvahiEntry, 1))) {
+ avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY);
+ return NULL;
+ }
+
+ e->server = s;
+ e->record = avahi_record_ref(r);
+ e->group = g;
+ e->interface = interface;
+ e->protocol = protocol;
+ e->flags = flags;
+ e->dead = 0;
+
+ AVAHI_LLIST_HEAD_INIT(AvahiAnnouncer, e->announcers);
+
+ AVAHI_LLIST_PREPEND(AvahiEntry, entries, s->entries, e);
+
+ /* Insert into hash table indexed by name */
+ t = avahi_hashmap_lookup(s->entries_by_key, e->record->key);
+ AVAHI_LLIST_PREPEND(AvahiEntry, by_key, t, e);
+ avahi_hashmap_replace(s->entries_by_key, e->record->key, t);
+
+ /* Insert into group list */
+ if (g)
+ AVAHI_LLIST_PREPEND(AvahiEntry, by_group, g->entries, e);
+
+ avahi_announce_entry(s, e);
+ }
+
+ return e;
+}
+
+int avahi_server_add(
+ AvahiServer *s,
+ AvahiSEntryGroup *g,
+ AvahiIfIndex interface,
+ AvahiProtocol protocol,
+ AvahiPublishFlags flags,
+ AvahiRecord *r) {
+
+ if (!server_add_internal(s, g, interface, protocol, flags, r))
+ return avahi_server_errno(s);
+
+ return AVAHI_OK;
+}
+
+const AvahiRecord *avahi_server_iterate(AvahiServer *s, AvahiSEntryGroup *g, void **state) {
+ AvahiEntry **e = (AvahiEntry**) state;
+ assert(s);
+ assert(e);
+
+ if (!*e)
+ *e = g ? g->entries : s->entries;
+
+ while (*e && (*e)->dead)
+ *e = g ? (*e)->by_group_next : (*e)->entries_next;
+
+ if (!*e)
+ return NULL;
+
+ return avahi_record_ref((*e)->record);
+}
+
+int avahi_server_dump(AvahiServer *s, AvahiDumpCallback callback, void* userdata) {
+ AvahiEntry *e;
+
+ assert(s);
+ assert(callback);
+
+ callback(";;; ZONE DUMP FOLLOWS ;;;", userdata);
+
+ for (e = s->entries; e; e = e->entries_next) {
+ char *t;
+ char ln[256];
+
+ if (e->dead)
+ continue;
+
+ if (!(t = avahi_record_to_string(e->record)))
+ return avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY);
+
+ snprintf(ln, sizeof(ln), "%s ; iface=%i proto=%i", t, e->interface, e->protocol);
+ avahi_free(t);
+
+ callback(ln, userdata);
+ }
+
+ avahi_dump_caches(s->monitor, callback, userdata);
+
+ if (s->wide_area_lookup_engine)
+ avahi_wide_area_cache_dump(s->wide_area_lookup_engine, callback, userdata);
+ return AVAHI_OK;
+}
+
+static AvahiEntry *server_add_ptr_internal(
+ AvahiServer *s,
+ AvahiSEntryGroup *g,
+ AvahiIfIndex interface,
+ AvahiProtocol protocol,
+ AvahiPublishFlags flags,
+ uint32_t ttl,
+ const char *name,
+ const char *dest) {
+
+ AvahiRecord *r;
+ AvahiEntry *e;
+
+ assert(s);
+ assert(dest);
+
+ AVAHI_CHECK_VALIDITY_RETURN_NULL(s, !name || avahi_is_valid_domain_name(name), AVAHI_ERR_INVALID_HOST_NAME);
+ AVAHI_CHECK_VALIDITY_RETURN_NULL(s, avahi_is_valid_domain_name(dest), AVAHI_ERR_INVALID_HOST_NAME);
+
+ if (!name)
+ name = s->host_name_fqdn;
+
+ if (!(r = avahi_record_new_full(name, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_PTR, ttl))) {
+ avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY);
+ return NULL;
+ }
+
+ r->data.ptr.name = avahi_normalize_name_strdup(dest);
+ e = server_add_internal(s, g, interface, protocol, flags, r);
+ avahi_record_unref(r);
+ return e;
+}
+
+int avahi_server_add_ptr(
+ AvahiServer *s,
+ AvahiSEntryGroup *g,
+ AvahiIfIndex interface,
+ AvahiProtocol protocol,
+ AvahiPublishFlags flags,
+ uint32_t ttl,
+ const char *name,
+ const char *dest) {
+
+ AvahiEntry *e;
+
+ assert(s);
+
+ if (!(e = server_add_ptr_internal(s, g, interface, protocol, flags, ttl, name, dest)))
+ return avahi_server_errno(s);
+
+ return AVAHI_OK;
+}
+
+int avahi_server_add_address(
+ AvahiServer *s,
+ AvahiSEntryGroup *g,
+ AvahiIfIndex interface,
+ AvahiProtocol protocol,
+ AvahiPublishFlags flags,
+ const char *name,
+ AvahiAddress *a) {
+
+ char n[AVAHI_DOMAIN_NAME_MAX];
+ int ret = AVAHI_OK;
+ AvahiEntry *entry = NULL, *reverse = NULL;
+ AvahiRecord *r;
+
+ assert(s);
+ assert(a);
+
+ AVAHI_CHECK_VALIDITY(s, AVAHI_IF_VALID(interface), AVAHI_ERR_INVALID_INTERFACE);
+ AVAHI_CHECK_VALIDITY(s, AVAHI_PROTO_VALID(protocol) && AVAHI_PROTO_VALID(a->proto), AVAHI_ERR_INVALID_PROTOCOL);
+ AVAHI_CHECK_VALIDITY(s, AVAHI_FLAGS_VALID(flags,
+ AVAHI_PUBLISH_NO_REVERSE|
+ AVAHI_PUBLISH_NO_ANNOUNCE|
+ AVAHI_PUBLISH_NO_PROBE|
+ AVAHI_PUBLISH_UPDATE|
+ AVAHI_PUBLISH_USE_WIDE_AREA|
+ AVAHI_PUBLISH_USE_MULTICAST), AVAHI_ERR_INVALID_FLAGS);
+ AVAHI_CHECK_VALIDITY(s, !name || avahi_is_valid_fqdn(name), AVAHI_ERR_INVALID_HOST_NAME);
+
+ /* Prepare the host naem */
+
+ if (!name)
+ name = s->host_name_fqdn;
+ else {
+ AVAHI_ASSERT_TRUE(avahi_normalize_name(name, n, sizeof(n)));
+ name = n;
+ }
+
+ transport_flags_from_domain(s, &flags, name);
+ AVAHI_CHECK_VALIDITY(s, flags & AVAHI_PUBLISH_USE_MULTICAST, AVAHI_ERR_NOT_SUPPORTED);
+
+ /* Create the A/AAAA record */
+
+ if (a->proto == AVAHI_PROTO_INET) {
+
+ if (!(r = avahi_record_new_full(name, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_A, AVAHI_DEFAULT_TTL_HOST_NAME))) {
+ ret = avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY);
+ goto finish;
+ }
+
+ r->data.a.address = a->data.ipv4;
+
+ } else {
+ assert(a->proto == AVAHI_PROTO_INET6);
+
+ if (!(r = avahi_record_new_full(name, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_AAAA, AVAHI_DEFAULT_TTL_HOST_NAME))) {
+ ret = avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY);
+ goto finish;
+ }
+
+ r->data.aaaa.address = a->data.ipv6;
+ }
+
+ entry = server_add_internal(s, g, interface, protocol, (flags & ~ AVAHI_PUBLISH_NO_REVERSE) | AVAHI_PUBLISH_UNIQUE | AVAHI_PUBLISH_ALLOW_MULTIPLE, r);
+ avahi_record_unref(r);
+
+ if (!entry) {
+ ret = avahi_server_errno(s);
+ goto finish;
+ }
+
+ /* Create the reverse lookup entry */
+
+ if (!(flags & AVAHI_PUBLISH_NO_REVERSE)) {
+ char reverse_n[AVAHI_DOMAIN_NAME_MAX];
+ avahi_reverse_lookup_name(a, reverse_n, sizeof(reverse_n));
+
+ if (!(reverse = server_add_ptr_internal(s, g, interface, protocol, flags | AVAHI_PUBLISH_UNIQUE, AVAHI_DEFAULT_TTL_HOST_NAME, reverse_n, name))) {
+ ret = avahi_server_errno(s);
+ goto finish;
+ }
+ }
+
+finish:
+
+ if (ret != AVAHI_OK && !(flags & AVAHI_PUBLISH_UPDATE)) {
+ if (entry)
+ avahi_entry_free(s, entry);
+ if (reverse)
+ avahi_entry_free(s, reverse);
+ }
+
+ return ret;
+}
+
+static AvahiEntry *server_add_txt_strlst_nocopy(
+ AvahiServer *s,
+ AvahiSEntryGroup *g,
+ AvahiIfIndex interface,
+ AvahiProtocol protocol,
+ AvahiPublishFlags flags,
+ uint32_t ttl,
+ const char *name,
+ AvahiStringList *strlst) {
+
+ AvahiRecord *r;
+ AvahiEntry *e;
+
+ assert(s);
+
+ if (!(r = avahi_record_new_full(name ? name : s->host_name_fqdn, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_TXT, ttl))) {
+ avahi_string_list_free(strlst);
+ avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY);
+ return NULL;
+ }
+
+ r->data.txt.string_list = strlst;
+ e = server_add_internal(s, g, interface, protocol, flags, r);
+ avahi_record_unref(r);
+
+ return e;
+}
+
+static AvahiStringList *add_magic_cookie(
+ AvahiServer *s,
+ AvahiStringList *strlst) {
+
+ assert(s);
+
+ if (!s->config.add_service_cookie)
+ return strlst;
+
+ if (avahi_string_list_find(strlst, AVAHI_SERVICE_COOKIE))
+ /* This string list already contains a magic cookie */
+ return strlst;
+
+ return avahi_string_list_add_printf(strlst, AVAHI_SERVICE_COOKIE"=%u", s->local_service_cookie);
+}
+
+static int server_add_service_strlst_nocopy(
+ AvahiServer *s,
+ AvahiSEntryGroup *g,
+ AvahiIfIndex interface,
+ AvahiProtocol protocol,
+ AvahiPublishFlags flags,
+ const char *name,
+ const char *type,
+ const char *domain,
+ const char *host,
+ uint16_t port,
+ AvahiStringList *strlst) {
+
+ char ptr_name[AVAHI_DOMAIN_NAME_MAX], svc_name[AVAHI_DOMAIN_NAME_MAX], enum_ptr[AVAHI_DOMAIN_NAME_MAX], *h = NULL;
+ AvahiRecord *r = NULL;
+ int ret = AVAHI_OK;
+ AvahiEntry *srv_entry = NULL, *txt_entry = NULL, *ptr_entry = NULL, *enum_entry = NULL;
+
+ assert(s);
+ assert(type);
+ assert(name);
+
+ AVAHI_CHECK_VALIDITY_SET_RET_GOTO_FAIL(s, AVAHI_IF_VALID(interface), AVAHI_ERR_INVALID_INTERFACE);
+ AVAHI_CHECK_VALIDITY_SET_RET_GOTO_FAIL(s, AVAHI_PROTO_VALID(protocol), AVAHI_ERR_INVALID_PROTOCOL);
+ AVAHI_CHECK_VALIDITY_SET_RET_GOTO_FAIL(s, AVAHI_FLAGS_VALID(flags,
+ AVAHI_PUBLISH_NO_COOKIE|
+ AVAHI_PUBLISH_UPDATE|
+ AVAHI_PUBLISH_USE_WIDE_AREA|
+ AVAHI_PUBLISH_USE_MULTICAST), AVAHI_ERR_INVALID_FLAGS);
+ AVAHI_CHECK_VALIDITY_SET_RET_GOTO_FAIL(s, avahi_is_valid_service_name(name), AVAHI_ERR_INVALID_SERVICE_NAME);
+ AVAHI_CHECK_VALIDITY_SET_RET_GOTO_FAIL(s, avahi_is_valid_service_type_strict(type), AVAHI_ERR_INVALID_SERVICE_TYPE);
+ AVAHI_CHECK_VALIDITY_SET_RET_GOTO_FAIL(s, !domain || avahi_is_valid_domain_name(domain), AVAHI_ERR_INVALID_DOMAIN_NAME);
+ AVAHI_CHECK_VALIDITY_SET_RET_GOTO_FAIL(s, !host || avahi_is_valid_fqdn(host), AVAHI_ERR_INVALID_HOST_NAME);
+
+ if (!domain)
+ domain = s->domain_name;
+
+ if (!host)
+ host = s->host_name_fqdn;
+
+ transport_flags_from_domain(s, &flags, domain);
+ AVAHI_CHECK_VALIDITY_SET_RET_GOTO_FAIL(s, flags & AVAHI_PUBLISH_USE_MULTICAST, AVAHI_ERR_NOT_SUPPORTED);
+
+ if (!(h = avahi_normalize_name_strdup(host))) {
+ ret = avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY);
+ goto fail;
+ }
+
+ if ((ret = avahi_service_name_join(svc_name, sizeof(svc_name), name, type, domain)) < 0 ||
+ (ret = avahi_service_name_join(ptr_name, sizeof(ptr_name), NULL, type, domain)) < 0 ||
+ (ret = avahi_service_name_join(enum_ptr, sizeof(enum_ptr), NULL, "_services._dns-sd._udp", domain)) < 0) {
+ avahi_server_set_errno(s, ret);
+ goto fail;
+ }
+
+ /* Add service enumeration PTR record */
+
+ if (!(ptr_entry = server_add_ptr_internal(s, g, interface, protocol, 0, AVAHI_DEFAULT_TTL, ptr_name, svc_name))) {
+ ret = avahi_server_errno(s);
+ goto fail;
+ }
+
+ /* Add SRV record */
+
+ if (!(r = avahi_record_new_full(svc_name, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_SRV, AVAHI_DEFAULT_TTL_HOST_NAME))) {
+ ret = avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY);
+ goto fail;
+ }
+
+ r->data.srv.priority = 0;
+ r->data.srv.weight = 0;
+ r->data.srv.port = port;
+ r->data.srv.name = h;
+ h = NULL;
+ srv_entry = server_add_internal(s, g, interface, protocol, AVAHI_PUBLISH_UNIQUE, r);
+ avahi_record_unref(r);
+
+ if (!srv_entry) {
+ ret = avahi_server_errno(s);
+ goto fail;
+ }
+
+ /* Add TXT record */
+
+ if (!(flags & AVAHI_PUBLISH_NO_COOKIE))
+ strlst = add_magic_cookie(s, strlst);
+
+ txt_entry = server_add_txt_strlst_nocopy(s, g, interface, protocol, AVAHI_PUBLISH_UNIQUE, AVAHI_DEFAULT_TTL, svc_name, strlst);
+ strlst = NULL;
+
+ if (!txt_entry) {
+ ret = avahi_server_errno(s);
+ goto fail;
+ }
+
+ /* Add service type enumeration record */
+
+ if (!(enum_entry = server_add_ptr_internal(s, g, interface, protocol, 0, AVAHI_DEFAULT_TTL, enum_ptr, ptr_name))) {
+ ret = avahi_server_errno(s);
+ goto fail;
+ }
+
+fail:
+ if (ret != AVAHI_OK && !(flags & AVAHI_PUBLISH_UPDATE)) {
+ if (srv_entry)
+ avahi_entry_free(s, srv_entry);
+ if (txt_entry)
+ avahi_entry_free(s, txt_entry);
+ if (ptr_entry)
+ avahi_entry_free(s, ptr_entry);
+ if (enum_entry)
+ avahi_entry_free(s, enum_entry);
+ }
+
+ avahi_string_list_free(strlst);
+ avahi_free(h);
+
+ return ret;
+}
+
+int avahi_server_add_service_strlst(
+ AvahiServer *s,
+ AvahiSEntryGroup *g,
+ AvahiIfIndex interface,
+ AvahiProtocol protocol,
+ AvahiPublishFlags flags,
+ const char *name,
+ const char *type,
+ const char *domain,
+ const char *host,
+ uint16_t port,
+ AvahiStringList *strlst) {
+
+ assert(s);
+ assert(type);
+ assert(name);
+
+ return server_add_service_strlst_nocopy(s, g, interface, protocol, flags, name, type, domain, host, port, avahi_string_list_copy(strlst));
+}
+
+int avahi_server_add_service(
+ AvahiServer *s,
+ AvahiSEntryGroup *g,
+ AvahiIfIndex interface,
+ AvahiProtocol protocol,
+ AvahiPublishFlags flags,
+ const char *name,
+ const char *type,
+ const char *domain,
+ const char *host,
+ uint16_t port,
+ ... ){
+
+ va_list va;
+ int ret;
+
+ va_start(va, port);
+ ret = server_add_service_strlst_nocopy(s, g, interface, protocol, flags, name, type, domain, host, port, avahi_string_list_new_va(va));
+ va_end(va);
+
+ return ret;
+}
+
+static int server_update_service_txt_strlst_nocopy(
+ AvahiServer *s,
+ AvahiSEntryGroup *g,
+ AvahiIfIndex interface,
+ AvahiProtocol protocol,
+ AvahiPublishFlags flags,
+ const char *name,
+ const char *type,
+ const char *domain,
+ AvahiStringList *strlst) {
+
+ char svc_name[AVAHI_DOMAIN_NAME_MAX];
+ int ret = AVAHI_OK;
+ AvahiEntry *e;
+
+ assert(s);
+ assert(type);
+ assert(name);
+
+ AVAHI_CHECK_VALIDITY_SET_RET_GOTO_FAIL(s, AVAHI_IF_VALID(interface), AVAHI_ERR_INVALID_INTERFACE);
+ AVAHI_CHECK_VALIDITY_SET_RET_GOTO_FAIL(s, AVAHI_PROTO_VALID(protocol), AVAHI_ERR_INVALID_PROTOCOL);
+ AVAHI_CHECK_VALIDITY_SET_RET_GOTO_FAIL(s, AVAHI_FLAGS_VALID(flags,
+ AVAHI_PUBLISH_NO_COOKIE|
+ AVAHI_PUBLISH_USE_WIDE_AREA|
+ AVAHI_PUBLISH_USE_MULTICAST), AVAHI_ERR_INVALID_FLAGS);
+ AVAHI_CHECK_VALIDITY_SET_RET_GOTO_FAIL(s, avahi_is_valid_service_name(name), AVAHI_ERR_INVALID_SERVICE_NAME);
+ AVAHI_CHECK_VALIDITY_SET_RET_GOTO_FAIL(s, avahi_is_valid_service_type_strict(type), AVAHI_ERR_INVALID_SERVICE_TYPE);
+ AVAHI_CHECK_VALIDITY_SET_RET_GOTO_FAIL(s, !domain || avahi_is_valid_domain_name(domain), AVAHI_ERR_INVALID_DOMAIN_NAME);
+
+ if (!domain)
+ domain = s->domain_name;
+
+ transport_flags_from_domain(s, &flags, domain);
+ AVAHI_CHECK_VALIDITY_SET_RET_GOTO_FAIL(s, flags & AVAHI_PUBLISH_USE_MULTICAST, AVAHI_ERR_NOT_SUPPORTED);
+
+ if ((ret = avahi_service_name_join(svc_name, sizeof(svc_name), name, type, domain)) < 0) {
+ avahi_server_set_errno(s, ret);
+ goto fail;
+ }
+
+ /* Add TXT record */
+ if (!(flags & AVAHI_PUBLISH_NO_COOKIE))
+ strlst = add_magic_cookie(s, strlst);
+
+ e = server_add_txt_strlst_nocopy(s, g, interface, protocol, AVAHI_PUBLISH_UNIQUE | AVAHI_PUBLISH_UPDATE, AVAHI_DEFAULT_TTL, svc_name, strlst);
+ strlst = NULL;
+
+ if (!e)
+ ret = avahi_server_errno(s);
+
+fail:
+
+ avahi_string_list_free(strlst);
+
+ return ret;
+}
+
+int avahi_server_update_service_txt_strlst(
+ AvahiServer *s,
+ AvahiSEntryGroup *g,
+ AvahiIfIndex interface,
+ AvahiProtocol protocol,
+ AvahiPublishFlags flags,
+ const char *name,
+ const char *type,
+ const char *domain,
+ AvahiStringList *strlst) {
+
+ return server_update_service_txt_strlst_nocopy(s, g, interface, protocol, flags, name, type, domain, avahi_string_list_copy(strlst));
+}
+
+/** Update the TXT record for a service with the NULL termonate list of strings */
+int avahi_server_update_service_txt(
+ AvahiServer *s,
+ AvahiSEntryGroup *g,
+ AvahiIfIndex interface,
+ AvahiProtocol protocol,
+ AvahiPublishFlags flags,
+ const char *name,
+ const char *type,
+ const char *domain,
+ ...) {
+
+ va_list va;
+ int ret;
+
+ va_start(va, domain);
+ ret = server_update_service_txt_strlst_nocopy(s, g, interface, protocol, flags, name, type, domain, avahi_string_list_new_va(va));
+ va_end(va);
+
+ return ret;
+}
+
+int avahi_server_add_service_subtype(
+ AvahiServer *s,
+ AvahiSEntryGroup *g,
+ AvahiIfIndex interface,
+ AvahiProtocol protocol,
+ AvahiPublishFlags flags,
+ const char *name,
+ const char *type,
+ const char *domain,
+ const char *subtype) {
+
+ int ret = AVAHI_OK;
+ char svc_name[AVAHI_DOMAIN_NAME_MAX], ptr_name[AVAHI_DOMAIN_NAME_MAX];
+
+ assert(name);
+ assert(type);
+ assert(subtype);
+
+ AVAHI_CHECK_VALIDITY_SET_RET_GOTO_FAIL(s, AVAHI_IF_VALID(interface), AVAHI_ERR_INVALID_INTERFACE);
+ AVAHI_CHECK_VALIDITY_SET_RET_GOTO_FAIL(s, AVAHI_PROTO_VALID(protocol), AVAHI_ERR_INVALID_PROTOCOL);
+ AVAHI_CHECK_VALIDITY_SET_RET_GOTO_FAIL(s, AVAHI_FLAGS_VALID(flags, AVAHI_PUBLISH_USE_MULTICAST|AVAHI_PUBLISH_USE_WIDE_AREA), AVAHI_ERR_INVALID_FLAGS);
+ AVAHI_CHECK_VALIDITY_SET_RET_GOTO_FAIL(s, avahi_is_valid_service_name(name), AVAHI_ERR_INVALID_SERVICE_NAME);
+ AVAHI_CHECK_VALIDITY_SET_RET_GOTO_FAIL(s, avahi_is_valid_service_type_strict(type), AVAHI_ERR_INVALID_SERVICE_TYPE);
+ AVAHI_CHECK_VALIDITY_SET_RET_GOTO_FAIL(s, !domain || avahi_is_valid_domain_name(domain), AVAHI_ERR_INVALID_DOMAIN_NAME);
+ AVAHI_CHECK_VALIDITY_SET_RET_GOTO_FAIL(s, avahi_is_valid_service_subtype(subtype), AVAHI_ERR_INVALID_SERVICE_SUBTYPE);
+
+ if (!domain)
+ domain = s->domain_name;
+
+ transport_flags_from_domain(s, &flags, domain);
+ AVAHI_CHECK_VALIDITY_SET_RET_GOTO_FAIL(s, flags & AVAHI_PUBLISH_USE_MULTICAST, AVAHI_ERR_NOT_SUPPORTED);
+
+ if ((ret = avahi_service_name_join(svc_name, sizeof(svc_name), name, type, domain)) < 0 ||
+ (ret = avahi_service_name_join(ptr_name, sizeof(ptr_name), NULL, subtype, domain)) < 0) {
+ avahi_server_set_errno(s, ret);
+ goto fail;
+ }
+
+ if ((ret = avahi_server_add_ptr(s, g, interface, protocol, 0, AVAHI_DEFAULT_TTL, ptr_name, svc_name)) < 0)
+ goto fail;
+
+fail:
+
+ return ret;
+}
+
+static void hexstring(char *s, size_t sl, const void *p, size_t pl) {
+ static const char hex[] = "0123456789abcdef";
+ int b = 0;
+ const uint8_t *k = p;
+
+ while (sl > 1 && pl > 0) {
+ *(s++) = hex[(b ? *k : *k >> 4) & 0xF];
+
+ if (b) {
+ k++;
+ pl--;
+ }
+
+ b = !b;
+
+ sl--;
+ }
+
+ if (sl > 0)
+ *s = 0;
+}
+
+static AvahiEntry *server_add_dns_server_name(
+ AvahiServer *s,
+ AvahiSEntryGroup *g,
+ AvahiIfIndex interface,
+ AvahiProtocol protocol,
+ AvahiPublishFlags flags,
+ const char *domain,
+ AvahiDNSServerType type,
+ const char *name,
+ uint16_t port /** should be 53 */) {
+
+ AvahiEntry *e;
+ char t[AVAHI_DOMAIN_NAME_MAX], normalized_d[AVAHI_DOMAIN_NAME_MAX], *n;
+
+ AvahiRecord *r;
+
+ assert(s);
+ assert(name);
+
+ AVAHI_CHECK_VALIDITY_RETURN_NULL(s, AVAHI_FLAGS_VALID(flags, AVAHI_PUBLISH_USE_WIDE_AREA|AVAHI_PUBLISH_USE_MULTICAST), AVAHI_ERR_INVALID_FLAGS);
+ AVAHI_CHECK_VALIDITY_RETURN_NULL(s, type == AVAHI_DNS_SERVER_UPDATE || type == AVAHI_DNS_SERVER_RESOLVE, AVAHI_ERR_INVALID_FLAGS);
+ AVAHI_CHECK_VALIDITY_RETURN_NULL(s, port != 0, AVAHI_ERR_INVALID_PORT);
+ AVAHI_CHECK_VALIDITY_RETURN_NULL(s, avahi_is_valid_fqdn(name), AVAHI_ERR_INVALID_HOST_NAME);
+ AVAHI_CHECK_VALIDITY_RETURN_NULL(s, !domain || avahi_is_valid_domain_name(domain), AVAHI_ERR_INVALID_DOMAIN_NAME);
+
+ if (!domain)
+ domain = s->domain_name;
+
+ transport_flags_from_domain(s, &flags, domain);
+ AVAHI_CHECK_VALIDITY_RETURN_NULL(s, flags & AVAHI_PUBLISH_USE_MULTICAST, AVAHI_ERR_NOT_SUPPORTED);
+
+ if (!(n = avahi_normalize_name_strdup(name))) {
+ avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY);
+ return NULL;
+ }
+
+ AVAHI_ASSERT_TRUE(avahi_normalize_name(domain, normalized_d, sizeof(normalized_d)));
+
+ snprintf(t, sizeof(t), "%s.%s", type == AVAHI_DNS_SERVER_RESOLVE ? "_domain._udp" : "_dns-update._udp", normalized_d);
+
+ if (!(r = avahi_record_new_full(t, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_SRV, AVAHI_DEFAULT_TTL_HOST_NAME))) {
+ avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY);
+ avahi_free(n);
+ return NULL;
+ }
+
+ r->data.srv.priority = 0;
+ r->data.srv.weight = 0;
+ r->data.srv.port = port;
+ r->data.srv.name = n;
+ e = server_add_internal(s, g, interface, protocol, 0, r);
+ avahi_record_unref(r);
+
+ return e;
+}
+
+int avahi_server_add_dns_server_address(
+ AvahiServer *s,
+ AvahiSEntryGroup *g,
+ AvahiIfIndex interface,
+ AvahiProtocol protocol,
+ AvahiPublishFlags flags,
+ const char *domain,
+ AvahiDNSServerType type,
+ const AvahiAddress *address,
+ uint16_t port /** should be 53 */) {
+
+ AvahiRecord *r;
+ char n[64], h[64];
+ AvahiEntry *a_entry, *s_entry;
+
+ assert(s);
+ assert(address);
+
+ AVAHI_CHECK_VALIDITY(s, AVAHI_IF_VALID(interface), AVAHI_ERR_INVALID_INTERFACE);
+ AVAHI_CHECK_VALIDITY(s, AVAHI_PROTO_VALID(protocol) && AVAHI_PROTO_VALID(address->proto), AVAHI_ERR_INVALID_PROTOCOL);
+ AVAHI_CHECK_VALIDITY(s, AVAHI_FLAGS_VALID(flags, AVAHI_PUBLISH_USE_MULTICAST|AVAHI_PUBLISH_USE_WIDE_AREA), AVAHI_ERR_INVALID_FLAGS);
+ AVAHI_CHECK_VALIDITY(s, type == AVAHI_DNS_SERVER_UPDATE || type == AVAHI_DNS_SERVER_RESOLVE, AVAHI_ERR_INVALID_FLAGS);
+ AVAHI_CHECK_VALIDITY(s, port != 0, AVAHI_ERR_INVALID_PORT);
+ AVAHI_CHECK_VALIDITY(s, !domain || avahi_is_valid_domain_name(domain), AVAHI_ERR_INVALID_DOMAIN_NAME);
+
+ if (!domain)
+ domain = s->domain_name;
+
+ transport_flags_from_domain(s, &flags, domain);
+ AVAHI_CHECK_VALIDITY(s, flags & AVAHI_PUBLISH_USE_MULTICAST, AVAHI_ERR_NOT_SUPPORTED);
+
+ if (address->proto == AVAHI_PROTO_INET) {
+ hexstring(h, sizeof(h), &address->data, sizeof(AvahiIPv4Address));
+ snprintf(n, sizeof(n), "ip-%s.%s", h, domain);
+ r = avahi_record_new_full(n, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_A, AVAHI_DEFAULT_TTL_HOST_NAME);
+ r->data.a.address = address->data.ipv4;
+ } else {
+ hexstring(h, sizeof(h), &address->data, sizeof(AvahiIPv6Address));
+ snprintf(n, sizeof(n), "ip6-%s.%s", h, domain);
+ r = avahi_record_new_full(n, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_AAAA, AVAHI_DEFAULT_TTL_HOST_NAME);
+ r->data.aaaa.address = address->data.ipv6;
+ }
+
+ if (!r)
+ return avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY);
+
+ a_entry = server_add_internal(s, g, interface, protocol, AVAHI_PUBLISH_UNIQUE | AVAHI_PUBLISH_ALLOW_MULTIPLE, r);
+ avahi_record_unref(r);
+
+ if (!a_entry)
+ return avahi_server_errno(s);
+
+ if (!(s_entry = server_add_dns_server_name(s, g, interface, protocol, flags, domain, type, n, port))) {
+ if (!(flags & AVAHI_PUBLISH_UPDATE))
+ avahi_entry_free(s, a_entry);
+ return avahi_server_errno(s);
+ }
+
+ return AVAHI_OK;
+}
+
+void avahi_s_entry_group_change_state(AvahiSEntryGroup *g, AvahiEntryGroupState state) {
+ assert(g);
+
+ if (g->state == state)
+ return;
+
+ assert(state <= AVAHI_ENTRY_GROUP_COLLISION);
+
+ if (g->state == AVAHI_ENTRY_GROUP_ESTABLISHED) {
+
+ /* If the entry group was established for a time longer then
+ * 5s, reset the establishment trial counter */
+
+ if (avahi_age(&g->established_at) > 5000000)
+ g->n_register_try = 0;
+ } else if (g->state == AVAHI_ENTRY_GROUP_REGISTERING) {
+ if (g->register_time_event) {
+ avahi_time_event_free(g->register_time_event);
+ g->register_time_event = NULL;
+ }
+ }
+
+ if (state == AVAHI_ENTRY_GROUP_ESTABLISHED)
+
+ /* If the entry group is now established, remember the time
+ * this happened */
+
+ gettimeofday(&g->established_at, NULL);
+
+ g->state = state;
+
+ if (g->callback)
+ g->callback(g->server, g, state, g->userdata);
+}
+
+AvahiSEntryGroup *avahi_s_entry_group_new(AvahiServer *s, AvahiSEntryGroupCallback callback, void* userdata) {
+ AvahiSEntryGroup *g;
+
+ assert(s);
+
+ if (!(g = avahi_new(AvahiSEntryGroup, 1))) {
+ avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY);
+ return NULL;
+ }
+
+ g->server = s;
+ g->callback = callback;
+ g->userdata = userdata;
+ g->dead = 0;
+ g->state = AVAHI_ENTRY_GROUP_UNCOMMITED;
+ g->n_probing = 0;
+ g->n_register_try = 0;
+ g->register_time_event = NULL;
+ g->register_time.tv_sec = 0;
+ g->register_time.tv_usec = 0;
+ AVAHI_LLIST_HEAD_INIT(AvahiEntry, g->entries);
+
+ AVAHI_LLIST_PREPEND(AvahiSEntryGroup, groups, s->groups, g);
+ return g;
+}
+
+static void cleanup_time_event_callback(AVAHI_GCC_UNUSED AvahiTimeEvent *e, void* userdata) {
+ AvahiServer *s = userdata;
+
+ assert(s);
+
+ avahi_cleanup_dead_entries(s);
+}
+
+static void schedule_cleanup(AvahiServer *s) {
+ struct timeval tv;
+
+ assert(s);
+
+ if (!s->cleanup_time_event)
+ s->cleanup_time_event = avahi_time_event_new(s->time_event_queue, avahi_elapse_time(&tv, 1000, 0), &cleanup_time_event_callback, s);
+}
+
+void avahi_s_entry_group_free(AvahiSEntryGroup *g) {
+ AvahiEntry *e;
+
+ assert(g);
+ assert(g->server);
+
+ for (e = g->entries; e; e = e->by_group_next) {
+ if (!e->dead) {
+ avahi_goodbye_entry(g->server, e, 1, 1);
+ e->dead = 1;
+ }
+ }
+
+ if (g->register_time_event) {
+ avahi_time_event_free(g->register_time_event);
+ g->register_time_event = NULL;
+ }
+
+ g->dead = 1;
+
+ g->server->need_group_cleanup = 1;
+ g->server->need_entry_cleanup = 1;
+
+ schedule_cleanup(g->server);
+}
+
+static void entry_group_commit_real(AvahiSEntryGroup *g) {
+ assert(g);
+
+ gettimeofday(&g->register_time, NULL);
+
+ avahi_s_entry_group_change_state(g, AVAHI_ENTRY_GROUP_REGISTERING);
+
+ if (g->dead)
+ return;
+
+ avahi_announce_group(g->server, g);
+ avahi_s_entry_group_check_probed(g, 0);
+}
+
+static void entry_group_register_time_event_callback(AVAHI_GCC_UNUSED AvahiTimeEvent *e, void* userdata) {
+ AvahiSEntryGroup *g = userdata;
+ assert(g);
+
+ avahi_time_event_free(g->register_time_event);
+ g->register_time_event = NULL;
+
+ /* Holdoff time passed, so let's start probing */
+ entry_group_commit_real(g);
+}
+
+int avahi_s_entry_group_commit(AvahiSEntryGroup *g) {
+ struct timeval now;
+
+ assert(g);
+ assert(!g->dead);
+
+ if (g->state != AVAHI_ENTRY_GROUP_UNCOMMITED && g->state != AVAHI_ENTRY_GROUP_COLLISION)
+ return avahi_server_set_errno(g->server, AVAHI_ERR_BAD_STATE);
+
+ if (avahi_s_entry_group_is_empty(g))
+ return avahi_server_set_errno(g->server, AVAHI_ERR_IS_EMPTY);
+
+ g->n_register_try++;
+
+ avahi_timeval_add(&g->register_time,
+ 1000*(g->n_register_try >= AVAHI_RR_RATE_LIMIT_COUNT ?
+ AVAHI_RR_HOLDOFF_MSEC_RATE_LIMIT :
+ AVAHI_RR_HOLDOFF_MSEC));
+
+ gettimeofday(&now, NULL);
+
+ if (avahi_timeval_compare(&g->register_time, &now) <= 0) {
+
+ /* Holdoff time passed, so let's start probing */
+ entry_group_commit_real(g);
+ } else {
+
+ /* Holdoff time has not yet passed, so let's wait */
+ assert(!g->register_time_event);
+ g->register_time_event = avahi_time_event_new(g->server->time_event_queue, &g->register_time, entry_group_register_time_event_callback, g);
+
+ avahi_s_entry_group_change_state(g, AVAHI_ENTRY_GROUP_REGISTERING);
+ }
+
+ return AVAHI_OK;
+}
+
+void avahi_s_entry_group_reset(AvahiSEntryGroup *g) {
+ AvahiEntry *e;
+ assert(g);
+
+ for (e = g->entries; e; e = e->by_group_next) {
+ if (!e->dead) {
+ avahi_goodbye_entry(g->server, e, 1, 1);
+ e->dead = 1;
+ }
+ }
+ g->server->need_entry_cleanup = 1;
+
+ g->n_probing = 0;
+
+ avahi_s_entry_group_change_state(g, AVAHI_ENTRY_GROUP_UNCOMMITED);
+
+ schedule_cleanup(g->server);
+}
+
+int avahi_entry_is_commited(AvahiEntry *e) {
+ assert(e);
+ assert(!e->dead);
+
+ return !e->group ||
+ e->group->state == AVAHI_ENTRY_GROUP_REGISTERING ||
+ e->group->state == AVAHI_ENTRY_GROUP_ESTABLISHED;
+}
+
+AvahiEntryGroupState avahi_s_entry_group_get_state(AvahiSEntryGroup *g) {
+ assert(g);
+ assert(!g->dead);
+
+ return g->state;
+}
+
+void avahi_s_entry_group_set_data(AvahiSEntryGroup *g, void* userdata) {
+ assert(g);
+
+ g->userdata = userdata;
+}
+
+void* avahi_s_entry_group_get_data(AvahiSEntryGroup *g) {
+ assert(g);
+
+ return g->userdata;
+}
+
+int avahi_s_entry_group_is_empty(AvahiSEntryGroup *g) {
+ AvahiEntry *e;
+ assert(g);
+
+ /* Look for an entry that is not dead */
+ for (e = g->entries; e; e = e->by_group_next)
+ if (!e->dead)
+ return 0;
+
+ return 1;
+}
projects / catta / blobdiff