Fix mosquitto_topic_matches_sub().
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@ -34,6 +34,8 @@ Client library:
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libmosquitto. Closes #166.
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- Clients can now cope with unknown incoming PUBACK, PUBREC, PUBREL, PUBCOMP
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without disconnecting. Closes #57.
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- Fix mosquitto_topic_matches_sub() reporting matches on some invalid
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subscriptions.
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Clients:
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- Handle some unchecked malloc() calls. Closes #1.
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@ -228,6 +228,11 @@ int mosquitto_topic_matches_sub(const char *sub, const char *topic, bool *result
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slen = strlen(sub);
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tlen = strlen(topic);
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if(!slen || !tlen){
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*result = false;
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return MOSQ_ERR_INVAL;
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}
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if(slen && tlen){
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if((sub[0] == '$' && topic[0] != '$')
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|| (topic[0] == '$' && sub[0] != '$')){
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@ -240,7 +245,7 @@ int mosquitto_topic_matches_sub(const char *sub, const char *topic, bool *result
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spos = 0;
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tpos = 0;
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while(spos < slen && tpos < tlen){
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while(spos < slen && tpos <= tlen){
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if(sub[spos] == topic[tpos]){
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if(tpos == tlen-1){
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/* Check for e.g. foo matching foo/# */
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@ -258,12 +263,26 @@ int mosquitto_topic_matches_sub(const char *sub, const char *topic, bool *result
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*result = true;
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return MOSQ_ERR_SUCCESS;
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}else if(tpos == tlen && spos == slen-1 && sub[spos] == '+'){
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if(spos > 0 && sub[spos-1] != '/'){
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*result = false;
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return MOSQ_ERR_INVAL;
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}
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spos++;
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*result = true;
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return MOSQ_ERR_SUCCESS;
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}
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}else{
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if(sub[spos] == '+'){
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/* Check for bad "+foo" or "a/+foo" subscription */
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if(spos > 0 && sub[spos-1] != '/'){
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*result = false;
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return MOSQ_ERR_INVAL;
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}
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/* Check for bad "foo+" or "foo+/a" subscription */
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if(spos < slen-1 && sub[spos+1] != '/'){
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*result = false;
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return MOSQ_ERR_INVAL;
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}
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spos++;
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while(tpos < tlen && topic[tpos] != '/'){
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tpos++;
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@ -273,10 +292,14 @@ int mosquitto_topic_matches_sub(const char *sub, const char *topic, bool *result
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return MOSQ_ERR_SUCCESS;
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}
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}else if(sub[spos] == '#'){
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if(spos > 0 && sub[spos-1] != '/'){
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*result = false;
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return MOSQ_ERR_INVAL;
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}
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multilevel_wildcard = true;
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if(spos+1 != slen){
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*result = false;
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return MOSQ_ERR_SUCCESS;
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return MOSQ_ERR_INVAL;
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}else{
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*result = true;
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return MOSQ_ERR_SUCCESS;
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@ -16,6 +16,13 @@ void do_check(const char *sub, const char *topic, bool bad_res)
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int main(int argc, char *argv[])
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{
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do_check("foo/#", "foo/", false);
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do_check("foo#", "foo", true);
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do_check("fo#o/", "foo", true);
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do_check("foo#", "fooa", true);
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do_check("foo+", "foo", true);
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do_check("foo+", "fooa", true);
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do_check("test/6/#", "test/3", true);
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do_check("foo/bar", "foo/bar", false);
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do_check("foo/+", "foo/bar", false);
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@ -10,7 +10,7 @@ def start_broker(filename, cmd=None, port=1888):
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if cmd is None:
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cmd = ['../../src/mosquitto', '-v', '-c', filename.replace('.py', '.conf')]
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if os.environ.get('MOSQ_USE_VALGRIND') is not None:
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cmd = ['valgrind', '-q', '--log-file='+filename+'.vglog'] + cmd
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cmd = ['valgrind', '--trace-children=yes', '-v', '--log-file='+filename+'.vglog'] + cmd
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delay = 1
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broker = subprocess.Popen(cmd, stderr=subprocess.PIPE)
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