/***
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
struct _DNSServiceRef_t {
int n_ref;
-
+
AvahiSimplePoll *simple_poll;
int thread_fd, main_fd;
int thread_running;
pthread_mutex_t mutex;
-
+
void *context;
DNSServiceBrowseReply service_browser_callback;
DNSServiceResolveReply service_resolver_callback;
switch (error) {
case AVAHI_OK :
return kDNSServiceErr_NoError;
-
+
case AVAHI_ERR_BAD_STATE :
return kDNSServiceErr_BadState;
-
+
case AVAHI_ERR_INVALID_HOST_NAME:
case AVAHI_ERR_INVALID_DOMAIN_NAME:
case AVAHI_ERR_INVALID_TTL:
case AVAHI_ERR_INVALID_INTERFACE:
case AVAHI_ERR_INVALID_PROTOCOL:
return kDNSServiceErr_BadInterfaceIndex;
-
+
case AVAHI_ERR_INVALID_FLAGS:
return kDNSServiceErr_BadFlags;
-
+
case AVAHI_ERR_NOT_FOUND:
return kDNSServiceErr_NoSuchName;
-
+
case AVAHI_ERR_VERSION_MISMATCH:
return kDNSServiceErr_Incompatible;
static int type_info_parse(struct type_info *i, const char *t) {
char *token = NULL;
-
+
assert(i);
assert(t);
if (*t == 0)
break;
-
+
l = strcspn(t, ",");
if (l <= 0)
goto fail;
-
+
token = avahi_strndup(t, l);
if (!token)
token = NULL;
} else {
char *fst;
-
+
/* This is not the first token, hence a subtype */
if (!(fst = avahi_strdup_printf("%s._sub.%s", token, i->type)))
if (i->type)
return 0;
-
+
fail:
type_info_free(i);
avahi_free(token);
char command;
assert(fd >= 0);
-
+
if ((r = read(fd, &command, 1)) != 1) {
fprintf(stderr, __FILE__": read() failed: %s\n", r < 0 ? strerror(errno) : "EOF");
return -1;
static int poll_func(struct pollfd *ufds, unsigned int nfds, int timeout, void *userdata) {
DNSServiceRef sdref = userdata;
int ret;
-
+
assert(sdref);
-
+
ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
/* fprintf(stderr, "pre-syscall\n"); */
ret = poll(ufds, nfds, timeout);
/* fprintf(stderr, "post-syscall\n"); */
-
+
ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex));
return ret;
sigfillset(&mask);
pthread_sigmask(SIG_BLOCK, &mask, NULL);
-
+
sdref->thread = pthread_self();
sdref->thread_running = 1;
break;
/* fprintf(stderr, "Command: %c\n", command); */
-
+
switch (command) {
case COMMAND_POLL: {
for (;;) {
errno = 0;
-
+
if ((ret = avahi_simple_poll_run(sdref->simple_poll)) < 0) {
if (errno == EINTR)
continue;
-
+
fprintf(stderr, __FILE__": avahi_simple_poll_run() failed: %s\n", strerror(errno));
}
if (write_command(sdref->thread_fd, ret < 0 ? COMMAND_POLL_FAILED : COMMAND_POLL_DONE) < 0)
break;
-
+
break;
}
case COMMAND_QUIT:
return NULL;
}
-
+
}
return NULL;
/* Queue an initial POLL command for the thread */
if (write_command(sdref->main_fd, COMMAND_POLL) < 0)
goto fail;
-
+
if (pthread_create(&sdref->thread, NULL, thread_func, sdref) != 0)
goto fail;
sdref->thread_running = 1;
-
+
return sdref;
fail:
static void sdref_free(DNSServiceRef sdref) {
assert(sdref);
-
+
if (sdref->thread_running) {
ASSERT_SUCCESS(write_command(sdref->main_fd, COMMAND_QUIT));
avahi_simple_poll_wakeup(sdref->simple_poll);
avahi_free(sdref->service_host);
type_info_free(&sdref->type_info);
-
+
avahi_string_list_free(sdref->service_txt);
-
+
avahi_free(sdref);
}
int DNSSD_API DNSServiceRefSockFD(DNSServiceRef sdref) {
AVAHI_WARN_LINKAGE;
-
+
if (!sdref || sdref->n_ref <= 0)
return -1;
if (!sdref || sdref->n_ref <= 0)
return kDNSServiceErr_BadParam;
-
+
sdref_ref(sdref);
ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex));
-
+
/* Cleanup notification socket */
if (read_command(sdref->main_fd) != COMMAND_POLL_DONE)
goto finish;
-
+
if (avahi_simple_poll_dispatch(sdref->simple_poll) < 0)
goto finish;
/* Request the poll */
if (write_command(sdref->main_fd, COMMAND_POLL) < 0)
goto finish;
-
+
ret = kDNSServiceErr_NoError;
-
+
finish:
ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
-
+
sdref_unref(sdref);
return ret;
type = add_trailing_dot(type, type_fixed, sizeof(type_fixed));
domain = add_trailing_dot(domain, domain_fixed, sizeof(domain_fixed));
-
+
switch (event) {
case AVAHI_BROWSER_NEW:
sdref->service_browser_callback(sdref, kDNSServiceFlagsAdd, interface, kDNSServiceErr_NoError, name, type, domain, sdref->context);
case AVAHI_BROWSER_FAILURE:
sdref->service_browser_callback(sdref, 0, interface, map_error(avahi_client_errno(sdref->client)), NULL, NULL, NULL, sdref->context);
break;
-
+
case AVAHI_BROWSER_CACHE_EXHAUSTED:
case AVAHI_BROWSER_ALL_FOR_NOW:
break;
static void generic_client_callback(AvahiClient *s, AvahiClientState state, void* userdata) {
DNSServiceRef sdref = userdata;
int error = kDNSServiceErr_Unknown;
-
+
assert(s);
assert(sdref);
assert(sdref->n_ref >= 1);
DNSServiceRef sdref = NULL;
AvahiIfIndex ifindex;
struct type_info type_info;
-
+
AVAHI_WARN_LINKAGE;
if (!ret_sdref || !regtype)
}
type_info_init(&type_info);
-
+
if (type_info_parse(&type_info, regtype) < 0 || type_info.n_subtypes > 1) {
type_info_free(&type_info);
return kDNSServiceErr_Unsupported;
} else
regtype = type_info.subtypes ? (char*) type_info.subtypes->text : type_info.type;
-
+
if (!(sdref = sdref_new())) {
type_info_free(&type_info);
return kDNSServiceErr_Unknown;
sdref->service_browser_callback = callback;
ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex));
-
+
if (!(sdref->client = avahi_client_new(avahi_simple_poll_get(sdref->simple_poll), 0, generic_client_callback, sdref, &error))) {
ret = map_error(error);
goto finish;
}
ifindex = interface == kDNSServiceInterfaceIndexAny ? AVAHI_IF_UNSPEC : (AvahiIfIndex) interface;
-
+
if (!(sdref->service_browser = avahi_service_browser_new(sdref->client, ifindex, AVAHI_PROTO_UNSPEC, regtype, domain, 0, service_browser_callback, sdref))) {
ret = map_error(avahi_client_errno(sdref->client));
goto finish;
}
-
+
ret = kDNSServiceErr_NoError;
*ret_sdref = sdref;
-
+
finish:
ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
-
+
if (ret != kDNSServiceErr_NoError)
DNSServiceRefDeallocate(sdref);
assert(ret == AVAHI_OK);
strcat(full_name, ".");
-
+
sdref->service_resolver_callback(sdref, 0, interface, kDNSServiceErr_NoError, full_name, host_name, htons(port), l, (unsigned char*) p, sdref->context);
avahi_free(p);
sdref->service_resolver_callback = callback;
ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex));
-
+
if (!(sdref->client = avahi_client_new(avahi_simple_poll_get(sdref->simple_poll), 0, generic_client_callback, sdref, &error))) {
ret = map_error(error);
goto finish;
}
ifindex = interface == kDNSServiceInterfaceIndexAny ? AVAHI_IF_UNSPEC : (AvahiIfIndex) interface;
-
+
if (!(sdref->service_resolver = avahi_service_resolver_new(sdref->client, ifindex, AVAHI_PROTO_UNSPEC, name, regtype, domain, AVAHI_PROTO_UNSPEC, 0, service_resolver_callback, sdref))) {
ret = map_error(avahi_client_errno(sdref->client));
goto finish;
}
-
+
ret = kDNSServiceErr_NoError;
*ret_sdref = sdref;
-
+
finish:
ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
-
+
if (ret != kDNSServiceErr_NoError)
DNSServiceRefDeallocate(sdref);
int DNSSD_API DNSServiceConstructFullName (
char *fullName,
- const char *service,
+ const char *service,
const char *regtype,
const char *domain) {
if (avahi_service_name_join(fullName, kDNSServiceMaxDomainName, service, regtype, domain) < 0)
return -1;
-
+
return 0;
}
case AVAHI_BROWSER_FAILURE:
sdref->domain_browser_callback(sdref, 0, interface, map_error(avahi_client_errno(sdref->client)), domain, sdref->context);
break;
-
+
case AVAHI_BROWSER_CACHE_EXHAUSTED:
case AVAHI_BROWSER_ALL_FOR_NOW:
break;
sdref->domain_browser_callback = callback;
ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex));
-
+
if (!(sdref->client = avahi_client_new(avahi_simple_poll_get(sdref->simple_poll), 0, generic_client_callback, sdref, &error))) {
ret = map_error(error);
goto finish;
}
ifindex = interface == kDNSServiceInterfaceIndexAny ? AVAHI_IF_UNSPEC : (AvahiIfIndex) interface;
-
+
if (!(sdref->domain_browser = avahi_domain_browser_new(sdref->client, ifindex, AVAHI_PROTO_UNSPEC, "local",
flags == kDNSServiceFlagsRegistrationDomains ? AVAHI_DOMAIN_BROWSER_REGISTER : AVAHI_DOMAIN_BROWSER_BROWSE,
0, domain_browser_callback, sdref))) {
ret = map_error(avahi_client_errno(sdref->client));
goto finish;
}
-
+
ret = kDNSServiceErr_NoError;
*ret_sdref = sdref;
-
+
finish:
ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
-
+
if (ret != kDNSServiceErr_NoError)
DNSServiceRefDeallocate(sdref);
regtype = add_trailing_dot(sdref->type_info.type, regtype_fixed, sizeof(regtype_fixed));
domain = add_trailing_dot(sdref->service_domain, domain_fixed, sizeof(domain_fixed));
-
+
sdref->service_register_callback(
sdref, 0, error,
sdref->service_name_chosen ? sdref->service_name_chosen : sdref->service_name,
static int reg_create_service(DNSServiceRef sdref) {
int ret;
AvahiStringList *l;
-
+
assert(sdref);
assert(sdref->n_ref >= 1);
/* We've not been setup completely */
if (!sdref->entry_group)
return;
-
+
switch (state) {
case AVAHI_CLIENT_FAILURE:
reg_report_error(sdref, kDNSServiceErr_Unknown);
if (!sdref->service_name_chosen) {
assert(sdref->service_name);
-
+
if (!(sdref->service_name_chosen = avahi_strdup(sdref->service_name))) {
reg_report_error(sdref, kDNSServiceErr_NoMemory);
return;
}
}
-
+
/* Register the service */
if ((ret = reg_create_service(sdref)) < 0) {
reg_report_error(sdref, map_error(ret));
return;
}
-
+
break;
}
-
+
case AVAHI_CLIENT_S_COLLISION:
case AVAHI_CLIENT_S_REGISTERING:
/* Remove our entry */
avahi_entry_group_reset(sdref->entry_group);
-
+
break;
case AVAHI_CLIENT_CONNECTING:
case AVAHI_ENTRY_GROUP_COLLISION: {
char *n;
int ret;
-
+
/* Remove our entry */
avahi_entry_group_reset(sdref->entry_group);
reg_report_error(sdref, map_error(ret));
return;
}
-
+
break;
}
/* Inform the user */
reg_report_error(sdref, map_error(avahi_client_errno(sdref->client)));
break;
-
+
}
}
DNSServiceRef *ret_sdref,
DNSServiceFlags flags,
uint32_t interface,
- const char *name,
+ const char *name,
const char *regtype,
- const char *domain,
- const char *host,
+ const char *domain,
+ const char *host,
uint16_t port,
uint16_t txtLen,
- const void *txtRecord,
- DNSServiceRegisterReply callback,
+ const void *txtRecord,
+ DNSServiceRegisterReply callback,
void *context) {
DNSServiceErrorType ret = kDNSServiceErr_Unknown;
if (!ret_sdref || !regtype)
return kDNSServiceErr_BadParam;
*ret_sdref = NULL;
-
+
if (!txtRecord) {
txtLen = 1;
txtRecord = "";
return kDNSServiceErr_Unsupported;
}
- if (txtLen > 0)
+ if (txtLen > 0)
if (avahi_string_list_parse(txtRecord, txtLen, &txt) < 0)
return kDNSServiceErr_Invalid;
avahi_string_list_free(txt);
return kDNSServiceErr_Invalid;
}
-
+
if (!(sdref = sdref_new())) {
avahi_string_list_free(txt);
type_info_free(&type_info);
sdref->service_txt = txt;
/* Some OOM checking would be cool here */
-
+
ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex));
-
+
if (!(sdref->client = avahi_client_new(avahi_simple_poll_get(sdref->simple_poll), 0, reg_client_callback, sdref, &error))) {
ret = map_error(error);
goto finish;
goto finish;
}
-
+
if ((error = reg_create_service(sdref)) < 0) {
ret = map_error(error);
goto finish;
}
}
-
+
ret = kDNSServiceErr_NoError;
*ret_sdref = sdref;
-
+
finish:
ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
-
+
if (ret != kDNSServiceErr_NoError)
DNSServiceRefDeallocate(sdref);
DNSServiceErrorType DNSSD_API DNSServiceUpdateRecord(
DNSServiceRef sdref,
- DNSRecordRef rref,
+ DNSRecordRef rref,
DNSServiceFlags flags,
uint16_t rdlen,
const void *rdata,
return kDNSServiceErr_Unsupported;
}
- if (rdlen > 0)
+ if (rdlen > 0)
if (avahi_string_list_parse(rdata, rdlen, &txt) < 0)
return kDNSServiceErr_Invalid;
sdref->type_info.type,
sdref->service_domain,
sdref->service_txt) < 0) {
-
+
ret = map_error(avahi_client_errno(sdref->client));
goto finish;
}
avahi_string_list_free(txt);
ret = kDNSServiceErr_NoError;
-
+
finish:
ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
-
+
return ret;
}
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