From 293e86998748bae2d7a8179ad198ec3452f0d472 Mon Sep 17 00:00:00 2001 From: Richard Braun Date: Wed, 1 Jun 2016 23:19:19 +0200 Subject: Fix pipe_send() with no data * libpipe/pipe.c (pipe_send): Set value pointed to by amount to 0 if if nothing is written. --- libpipe/pipe.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'libpipe') diff --git a/libpipe/pipe.c b/libpipe/pipe.c index c3d2a28b..0b539218 100644 --- a/libpipe/pipe.c +++ b/libpipe/pipe.c @@ -319,7 +319,10 @@ pipe_send (struct pipe *pipe, int noblock, void *source, /* Nothing to do. */ if (data_len == 0 && control_len == 0 && num_ports == 0) - return 0; + { + *amount = 0; + return 0; + } err = pipe_wait_writable (pipe, noblock); if (err) -- cgit v1.2.3