Fix mosquitto_sub encoding of special characters with %j format.

Thanks to Ben Barbour. Closes #1220.
eclipse · Apr 11, 2019 · cba3380 · cba3380
1 parent 5b7b5ea
commit cba3380
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diff --git a/ChangeLog.txt b/ChangeLog.txt
@@ -50,6 +50,8 @@ Client features:
 Client fixes:
 - mosquitto_pub wouldn't always publish all messages when using `-l` and
  QoS>0. This has been fixed.
+- mosquitto_sub was incorrectly encoding special characters when using %j
+ output format. Closes #1220.
 
 
 1.5.8 - 20190228

diff --git a/client/sub_client_output.c b/client/sub_client_output.c
@@ -101,7 +101,7 @@ static void write_json_payload(const char *payload, int payloadlen)
 
  for(i=0; i<payloadlen; i++){
  if(payload[i] == '"' || payload[i] == '\\' || (payload[i] >=0 && payload[i] < 32)){
- printf("\\u%04d", payload[i]);
+ printf("\\u%04x", payload[i]);
  }else{
  fputc(payload[i], stdout);
  }