Only register signal handlers if we have a PANIC_ACTION set

diff --git a/src/lib/debug.c b/src/lib/debug.c
index e1f0125..f4c1ad4 100644 (file)
--- a/src/lib/debug.c
+++ b/src/lib/debug.c
@@ -676,24 +676,25 @@ int fr_fault_setup(char const *cmd, char const *program)
 
        /* Unsure what the side effects of changing the signal handler mid execution might be */
        if (!setup) {
+               if (cmd) {
 #ifdef SIGSEGV
-               if (fr_set_signal(SIGSEGV, fr_fault) < 0) return -1;
+                       if (fr_set_signal(SIGSEGV, fr_fault) < 0) return -1;
 #endif
 #ifdef SIGBUS
-               if (fr_set_signal(SIGBUS, fr_fault) < 0) return -1;
+                       if (fr_set_signal(SIGBUS, fr_fault) < 0) return -1;
 #endif
 #ifdef SIGABRT
-               if (fr_set_signal(SIGABRT, fr_fault) < 0) return -1;
-               /*
-                *  Use this instead of abort so we get a
-                *  full backtrace with broken versions of LLDB
-                */
-               talloc_set_abort_fn(_fr_talloc_fault);
+                       if (fr_set_signal(SIGABRT, fr_fault) < 0) return -1;
+                       /*
+                        *  Use this instead of abort so we get a
+                        *  full backtrace with broken versions of LLDB
+                        */
+                       talloc_set_abort_fn(_fr_talloc_fault);
 #endif
 #ifdef SIGFPE
-               if (fr_set_signal(SIGFPE, fr_fault) < 0) return -1;
+                       if (fr_set_signal(SIGFPE, fr_fault) < 0) return -1;
 #endif
-
+               }
 #ifdef SIGUSR1
                if (fr_set_signal(SIGUSR1, fr_fault) < 0) return -1;
 #endif