summaryrefslogtreecommitdiffstats
path: root/avahi-compat-libdns_sd
diff options
context:
space:
mode:
authorLennart Poettering <lennart@poettering.net>2007-01-06 16:51:42 +0000
committerLennart Poettering <lennart@poettering.net>2007-01-06 16:51:42 +0000
commit5b7e4f49787da905b9ec7d01eaf76462ca3a6e28 (patch)
tree4abd8004824ad0471aa7667823513536099aa3a0 /avahi-compat-libdns_sd
parentb303e69589394fe25ff8f5fe6a17dfa6a4b07ea6 (diff)
* handle NULL sdrefs gracefully.
* fix mutex locking order in DNSProcessResult git-svn-id: file:///home/lennart/svn/public/avahi/trunk@1374 941a03a8-eaeb-0310-b9a0-b1bbd8fe43fe
Diffstat (limited to 'avahi-compat-libdns_sd')
-rw-r--r--avahi-compat-libdns_sd/compat.c35
1 files changed, 21 insertions, 14 deletions
diff --git a/avahi-compat-libdns_sd/compat.c b/avahi-compat-libdns_sd/compat.c
index 9dc2281..9d8ff1c 100644
--- a/avahi-compat-libdns_sd/compat.c
+++ b/avahi-compat-libdns_sd/compat.c
@@ -469,25 +469,26 @@ static void sdref_unref(DNSServiceRef sdref) {
}
int DNSSD_API DNSServiceRefSockFD(DNSServiceRef sdref) {
- if (!sdref || sdref->n_ref <= 0)
- return -1;
AVAHI_WARN_LINKAGE;
+ if (!sdref || sdref->n_ref <= 0)
+ return -1;
+
return sdref->main_fd;
}
DNSServiceErrorType DNSSD_API DNSServiceProcessResult(DNSServiceRef sdref) {
DNSServiceErrorType ret = kDNSServiceErr_Unknown;
- assert(sdref);
- assert(sdref->n_ref >= 1);
-
AVAHI_WARN_LINKAGE;
- ASSERT_SUCCESS(pthread_mutex_lock(&sdref->mutex));
-
+ 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)
@@ -512,10 +513,10 @@ DNSServiceErrorType DNSSD_API DNSServiceProcessResult(DNSServiceRef sdref) {
finish:
- sdref_unref(sdref);
-
ASSERT_SUCCESS(pthread_mutex_unlock(&sdref->mutex));
+ sdref_unref(sdref);
+
return ret;
}
@@ -613,7 +614,6 @@ DNSServiceErrorType DNSSD_API DNSServiceBrowse(
if (!ret_sdref)
return kDNSServiceErr_BadParam;
-
*ret_sdref = NULL;
assert(regtype);
@@ -739,7 +739,10 @@ DNSServiceErrorType DNSSD_API DNSServiceResolve(
AVAHI_WARN_LINKAGE;
- assert(ret_sdref);
+ if (!ret_sdref)
+ return kDNSServiceErr_BadParam;
+ *ret_sdref = NULL;
+
assert(name);
assert(regtype);
assert(domain);
@@ -853,7 +856,10 @@ DNSServiceErrorType DNSSD_API DNSServiceEnumerateDomains(
AVAHI_WARN_LINKAGE;
- assert(ret_sdref);
+ if (!ret_sdref)
+ return kDNSServiceErr_BadParam;
+ *ret_sdref = NULL;
+
assert(callback);
if (interface == kDNSServiceInterfaceIndexLocalOnly ||
@@ -1096,7 +1102,6 @@ DNSServiceErrorType DNSSD_API DNSServiceRegister (
if (!ret_sdref)
return kDNSServiceErr_BadParam;
-
*ret_sdref = NULL;
if (!regtype)
@@ -1210,10 +1215,12 @@ DNSServiceErrorType DNSSD_API DNSServiceUpdateRecord(
int ret = kDNSServiceErr_Unknown;
AvahiStringList *txt = NULL;
- assert(sdref);
AVAHI_WARN_LINKAGE;
+ if (!sdref || sdref->n_ref <= 0)
+ return kDNSServiceErr_BadParam;
+
if (flags || rref) {
AVAHI_WARN_UNSUPPORTED;
return kDNSServiceErr_Unsupported;