X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=platform%2Fexample%2Ffunctions%2Fsignal%2Fsignal.c;h=37aee7ab56fc291dac80b7fd15c207a4b2db6bbf;hb=b1fc26afebd4d557ff89a44bc21767a8704c3809;hp=33722aceb65e5d14d38fd411af9f2b5c80a01d7f;hpb=702bdf4497a72b422c591f69c45aa0be0ee23731;p=pdclib

diff --git a/platform/example/functions/signal/signal.c b/platform/example/functions/signal/signal.c
index 33722ac..37aee7a 100644
--- a/platform/example/functions/signal/signal.c
+++ b/platform/example/functions/signal/signal.c
@@ -1,6 +1,4 @@
-/* $Id$ */
-
-/* signal( int sig, void (*func)( int ) )
+/* signal( int, void (*)( int ) )
 
    This file is part of the Public Domain C Library (PDCLib).
    Permission is granted to use, modify, and / or redistribute at will.
@@ -22,6 +20,10 @@ void (*_PDCLIB_sigterm)( int ) = SIG_DFL;
 void (*signal( int sig, void (*func)( int ) ) )( int )
 {
     void (*oldhandler)( int );
+    if ( sig <= 0 || func == SIG_ERR )
+    {
+        return SIG_ERR;
+    }
     switch ( sig )
     {
         case SIGABRT:
@@ -65,7 +67,7 @@ void (*signal( int sig, void (*func)( int ) ) )( int )
 
 int main( void )
 {
-    TESTCASE( NO_TESTDRIVER );
+    /* Testing covered by raise.c */
     return TEST_RESULTS;
 }
 #endif