From: Quentin Young <qlyoung@cumulusnetworks.com>
Date: Thu, 5 Mar 2020 20:40:26 +0000 (-0500)
Subject: lib: disable signal handlers for fuzzing
X-Git-Url: https://git.puffer.fish/?a=commitdiff_plain;h=f26c17ac8bec8723d30873eaafbb6819408cf163;p=matthieu%2Ffrr.git

lib: disable signal handlers for fuzzing

libFuzzer uses signal handlers for process control, overwriting them
makes it difficult to kill libFuzzer-linked programs.

With this patch ^C now works on libFuzzer runs.

Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
---

diff --git a/lib/libfrr.c b/lib/libfrr.c
index e513ee2ed7..52823cbb3e 100644
--- a/lib/libfrr.c
+++ b/lib/libfrr.c
@@ -852,7 +852,12 @@ struct thread_master *frr_init_fast(void)
 
 	zprivs_init(di->privs);
 	master = thread_master_create(NULL);
+
+/* We don't want signal handlers for fuzzing, libFuzzer uses signals for
+ * process control */
+#if 0
 	signal_init(master, di->n_signals, di->signals);
+#endif
 
 #if 0
 #ifdef HAVE_SQLITE3