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| author | Daniel Stenberg <daniel@haxx.se> | 2022-03-29 08:43:13 +0200 |
|---|---|---|
| committer | Daniel Stenberg <daniel@haxx.se> | 2022-03-29 08:43:14 +0200 |
| commit | 87da3e845be515ddbb1542d0d17e66e843610d3a (patch) | |
| tree | 262ae31fb09e73e2bc93b9bd0b05fa09b2ab5757 /lib/mqtt.c | |
| parent | 301bd979652a53482b8910845a9643298c6029f7 (diff) | |
| download | curl-87da3e845be515ddbb1542d0d17e66e843610d3a.tar.gz | |
mqtt: better handling of TCP disconnect mid-message
Reported-by: Jenny Heino
Bug: https://hackerone.com/reports/1521610
Closes #8644
Diffstat (limited to 'lib/mqtt.c')
| -rw-r--r-- | lib/mqtt.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/lib/mqtt.c b/lib/mqtt.c index e79bd3b48..9bcbaa195 100644 --- a/lib/mqtt.c +++ b/lib/mqtt.c @@ -732,8 +732,14 @@ static CURLcode mqtt_doing(struct Curl_easy *data, bool *done) case MQTT_FIRST: /* Read the initial byte only */ result = Curl_read(data, sockfd, (char *)&mq->firstbyte, 1, &nread); - if(!nread) + if(result) + break; + else if(!nread) { + failf(data, "Connection disconnected"); + *done = TRUE; + result = CURLE_RECV_ERROR; break; + } Curl_debug(data, CURLINFO_HEADER_IN, (char *)&mq->firstbyte, 1); /* remember the first byte */ mq->npacket = 0; |