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PubSubClient.cpp: Using strnlen()

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This commit is contained in:
Abderraouf Adjal 2019-08-22 17:19:38 +01:00 committed by GitHub
parent 719b90eafd
commit f13ad2af3b
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 7 additions and 7 deletions

14
src/PubSubClient.cpp

@ -366,11 +366,11 @@ boolean PubSubClient::loop() {
}
boolean PubSubClient::publish(const char* topic, const char* payload) {
return publish(topic,(const uint8_t*)payload,strlen(payload),false);
return publish(topic,(const uint8_t*)payload,strnlen(payload, MQTT_MAX_PACKET_SIZE),false);
}
boolean PubSubClient::publish(const char* topic, const char* payload, boolean retained) {
return publish(topic,(const uint8_t*)payload,strlen(payload),retained);
return publish(topic,(const uint8_t*)payload,strnlen(payload, MQTT_MAX_PACKET_SIZE),retained);
}
boolean PubSubClient::publish(const char* topic, const uint8_t* payload, unsigned int plength) {
@ -379,7 +379,7 @@ boolean PubSubClient::publish(const char* topic, const uint8_t* payload, unsigne
boolean PubSubClient::publish(const char* topic, const uint8_t* payload, unsigned int plength, boolean retained) {
if (connected()) {
if (MQTT_MAX_PACKET_SIZE < MQTT_MAX_HEADER_SIZE + 2+strlen(topic) + plength) {
if (MQTT_MAX_PACKET_SIZE < MQTT_MAX_HEADER_SIZE + 2+strnlen(topic, MQTT_MAX_PACKET_SIZE) + plength) {
// Too long
return false;
}
@ -400,7 +400,7 @@ boolean PubSubClient::publish(const char* topic, const uint8_t* payload, unsigne
}
boolean PubSubClient::publish_P(const char* topic, const char* payload, boolean retained) {
return publish_P(topic, (const uint8_t*)payload, strlen(payload), retained);
return publish_P(topic, (const uint8_t*)payload, strnlen(payload, MQTT_MAX_PACKET_SIZE), retained);
}
boolean PubSubClient::publish_P(const char* topic, const uint8_t* payload, unsigned int plength, boolean retained) {
@ -417,7 +417,7 @@ boolean PubSubClient::publish_P(const char* topic, const uint8_t* payload, unsig
return false;
}
tlen = strlen(topic);
tlen = strnlen(topic, MQTT_MAX_PACKET_SIZE);
header = MQTTPUBLISH;
if (retained) {
@ -534,7 +534,7 @@ boolean PubSubClient::subscribe(const char* topic, uint8_t qos) {
if (qos > 1) {
return false;
}
if (MQTT_MAX_PACKET_SIZE < 9 + strlen(topic)) {
if (MQTT_MAX_PACKET_SIZE < 9 + strnlen(topic, MQTT_MAX_PACKET_SIZE)) {
// Too long
return false;
}
@ -555,7 +555,7 @@ boolean PubSubClient::subscribe(const char* topic, uint8_t qos) {
}
boolean PubSubClient::unsubscribe(const char* topic) {
if (MQTT_MAX_PACKET_SIZE < 9 + strlen(topic)) {
if (MQTT_MAX_PACKET_SIZE < 9 + strnlen(topic, MQTT_MAX_PACKET_SIZE)) {
// Too long
return false;
}