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authorLasse Collin <lasse.collin@tukaani.org>2013-07-01 14:34:11 +0300
committerLasse Collin <lasse.collin@tukaani.org>2013-07-01 14:34:11 +0300
commitc0627b3fceacfa1ed162f5f55235360ea26f569a (patch)
treea04578ee762561827e2fc6e0524013efa5ffd547
parentUpdate NEWS for 5.0.5. (diff)
downloadxz-c0627b3fceacfa1ed162f5f55235360ea26f569a.tar.xz
xz: Silence a warning seen with _FORTIFY_SOURCE=2.
Thanks to Christian Hesse.
-rw-r--r--src/xz/file_io.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/src/xz/file_io.c b/src/xz/file_io.c
index 9b0942c2..9db7dc58 100644
--- a/src/xz/file_io.c
+++ b/src/xz/file_io.c
@@ -98,8 +98,14 @@ io_init(void)
extern void
io_write_to_user_abort_pipe(void)
{
+ // If the write() fails, it's probably due to the pipe being full.
+ // Failing in that case is fine. If the reason is something else,
+ // there's not much we can do since this is called in a signal
+ // handler. So ignore the errors and try to avoid warnings with
+ // GCC and glibc when _FORTIFY_SOURCE=2 is used.
uint8_t b = '\0';
- (void)write(user_abort_pipe[1], &b, 1);
+ const int ret = write(user_abort_pipe[1], &b, 1);
+ (void)ret;
return;
}
#endif