ps_publish_content invalid array index

[yoursunny]

ndn-lite/app-support/pub-sub.c

Lines 587 to 596 in d60a114

	NDN_LOG_INFO("[PUB/SUB] No availble topic, will drop the oldest pub topic.");
	uint64_t min_last_tp = m_pub_sub_state.pub_topics[0].last_update_tp;
	int index = -1;
	for (int i = 1; i < 5; i++) {
	if (m_pub_sub_state.pub_topics[i].last_update_tp < min_last_tp) {
	min_last_tp = m_pub_sub_state.pub_topics[i].last_update_tp;
	index = i;
	}
	}
	topic = &m_pub_sub_state.pub_topics[index];

In this code, if pub_topics[0] happens to be the oldest pub topic, index will remain -1 and topic will be pointing to pub_topics[-1] that is an invalid position.

[tianyuan129]

9291110 addressed in develop branch.