#123 sipp leaves stdio in nonblocking state

[Anonymous]

This is a minor annoyance, but sipp changes stdio to nonblocking when invoked like this:
fcntl(fileno(stdin), F_SETFL, fcntl(fileno(stdin), F_GETFL) | O_NONBLOCK);

That is fine if sipp is invoked from a shell, as the shell will (hopefully) restore stdin to blocking state when sipp exits. If invoked from an interactive perl script via a system command, as I was doing, sipp leaves the stdin non-blocking when it exits. Which results in the perl script getting undef when attempting to collect input. This can be worked around by making sipp take input from /dev/null, but it would be a nicer behavior if there were an atexit function or some such that restored stdin to its initial state when sipp was invoked.

[Anonymous]

BTW this is version: SIPp v3.1-PCAP, version unknown, built Apr 28 2010, 08:46:05.

[Natanael Copa]

busybox ash does not reset the stdin.

See http://bugs.alpinelinux.org/issues/2259

Attached is a patch against current git that fixes the issue using atexit(3).

[Rob Day]

Thanks for this - I'll try to test and apply it this week.

[Rob Day]

Now in SIPp 3.4 beta1.