'mosquitto_pub -l' doesn't see end-of-file

[deviance]

When mosquitto_pub is run in stdin-line mode (with -l switch), then it does not recognize EOF in case of zero-length input.
I am using v1.4.14

$ LD_LIBRARY_PATH=$(pwd)/lib client/mosquitto_pub --help | head -n 2
mosquitto_pub is a simple mqtt client that will publish a message on a single topic and exit.
mosquitto_pub version 1.4.14 running on libmosquitto 1.4.14.

The command that hangs up is:

$ LC_ALL=en_US dd if=/dev/zero count=0 | LD_LIBRARY_PATH=$(pwd)/lib client/mosquitto_pub -h iot.eclipse.org -t test/topic -d -l
0+0 records in
0+0 records out
0 bytes copied, 4.8251e-05 s, 0.0 kB/s
Client mosqpub|11199-home-pc sending CONNECT
Client mosqpub|11199-home-pc received CONNACK

I expect the mosquitto_pub -l to behave in this regard the same as mosquitto_pub -s:

$ LC_ALL=en_US dd if=/dev/zero count=0 | LD_LIBRARY_PATH=$(pwd)/lib client/mosquitto_pub -h iot.eclipse.org -t test/topic -d -s
0+0 records in
0+0 records out
0 bytes copied, 5.2439e-05 s, 0.0 kB/s
Error: Zero length input.
Error loading input from stdin.

[ralight]

Thanks very much, lovely and easy to reproduce. Could you check the fixes branch and close the bug if it works for you?

[deviance]

This works for me, thanks.

[marwatk]

I've upgraded to 1.6.2 and I still seem to see this behavior:

root@softwareradio:~# mosquitto_pub --help | head -2
mosquitto_pub is a simple mqtt client that will publish a message on a single topic and exit.
mosquitto_pub version 1.6.2 running on libmosquitto 1.6.2.

root@softwareradio:~# dd if=/dev/zero count=0 | mosquitto_pub --stdin-line --topic sensors/433_raw --host <redacted> --port 1883 -d
0+0 records in
0+0 records out
0 bytes copied, 0.00390834 s, 0.0 kB/s
Client mosq/sCYUoZnobu8Y2A3y5a sending CONNECT
Client mosq/sCYUoZnobu8Y2A3y5a received CONNACK (0)

Is there a known good version I can test against to see if it's a regression?

[marwatk]

Yep, I just tried 1.5.3 and it works as it should. Looks like a regression.