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 <[email protected]> --- uloop.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/uloop.c b/uloop.c index 9a77ce4..7d11bbc 100644 --- a/uloop.c +++ b/uloop.c @@ -582,6 +582,21 @@ 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; + + sigaction(signum, NULL, &s); + + if (ignore) { + if (s.sa_handler == SIG_DFL) /* Ignore only if there isn't any custom handler */ + signal(signum, SIG_IGN); + } else { + if (s.sa_handler == SIG_IGN) /* Restore only if noone modified our SIG_IGN */ + signal(signum, SIG_DFL); + } +} + static void uloop_setup_signals(bool add) { static struct sigaction old_sigint, old_sigchld, old_sigterm; @@ -589,6 +604,8 @@ 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 _______________________________________________ openwrt-devel mailing list [email protected] https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
