From 1dc5312f00c80e2f0b06838b671bf32d63936f41 Mon Sep 17 00:00:00 2001 From: Matt Johnston Date: Sat, 15 Feb 2014 21:13:57 +0800 Subject: - Save errno in signal handlers - Use _exit() in segv handler --- svr-main.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'svr-main.c') diff --git a/svr-main.c b/svr-main.c index 73b281b..4b38594 100644 --- a/svr-main.c +++ b/svr-main.c @@ -337,6 +337,8 @@ out: static void sigchld_handler(int UNUSED(unused)) { struct sigaction sa_chld; + const int saved_errno = errno; + while(waitpid(-1, NULL, WNOHANG) > 0); sa_chld.sa_handler = sigchld_handler; @@ -344,13 +346,14 @@ static void sigchld_handler(int UNUSED(unused)) { if (sigaction(SIGCHLD, &sa_chld, NULL) < 0) { dropbear_exit("signal() error"); } + errno = saved_errno; } /* catch any segvs */ static void sigsegv_handler(int UNUSED(unused)) { fprintf(stderr, "Aiee, segfault! You should probably report " "this as a bug to the developer\n"); - exit(EXIT_FAILURE); + _exit(EXIT_FAILURE); } /* catch ctrl-c or sigterm */ -- cgit v1.2.3