Most app don't want to crash because of unhandled SIGPIPE. It could
happen is such trivial situations like writing to socket.
Signed-off-by: Rafał Miłecki <zaj...@gmail.com>
---
V2: Replace signal call with sigaction
V3: Don't duplicate the code
---
uloop.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/uloop.c b/uloop.c
index 9a77ce4..eed105f 100644
--- a/uloop.c
+++ b/uloop.c
@@ -582,6 +582,28 @@ static void uloop_install_handler(int signum, void
(*handler)(int), struct sigac
sigaction(signum, act, NULL);
}
+static void uloop_ignore_signal(int signum, bool ignore)
+{
+ struct sigaction s;
+ void *new_handler = NULL;
+
+ sigaction(signum, NULL, &s);
+
+ if (ignore) {
+ if (s.sa_handler == SIG_DFL) /* Ignore only if there isn't any
custom handler */
+ new_handler = SIG_IGN;
+ } else {
+ if (s.sa_handler == SIG_IGN) /* Restore only if noone modified
our SIG_IGN */
+ new_handler = SIG_DFL;
+ }
+
+ if (new_handler) {
+ s.sa_handler = new_handler;
+ s.sa_flags = 0;
+ sigaction(signum, &s, NULL);
+ }
+}
+
static void uloop_setup_signals(bool add)
{
static struct sigaction old_sigint, old_sigchld, old_sigterm;
@@ -589,6 +611,8 @@ static void uloop_setup_signals(bool add)
uloop_install_handler(SIGINT, uloop_handle_sigint, &old_sigint, add);
uloop_install_handler(SIGTERM, uloop_handle_sigint, &old_sigterm, add);
uloop_install_handler(SIGCHLD, uloop_sigchld, &old_sigchld, add);
+
+ uloop_ignore_signal(SIGPIPE, add);
}
static int uloop_get_next_timeout(struct timeval *tv)
--
1.8.4.5
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