--- /dev/null
+/* signal( int sig, void (*func)( int ) )
+
+ This file is part of the Public Domain C Library (PDCLib).
+ Permission is granted to use, modify, and / or redistribute at will.
+*/
+
+#include <signal.h>
+#include <errno.h>
+
+#ifndef REGTEST
+
+void (*_PDCLIB_sigabrt)( int ) = SIG_DFL;
+void (*_PDCLIB_sigfpe)( int ) = SIG_DFL;
+void (*_PDCLIB_sigill)( int ) = SIG_DFL;
+void (*_PDCLIB_sigint)( int ) = SIG_DFL;
+void (*_PDCLIB_sigsegv)( int ) = SIG_DFL;
+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:
+ oldhandler = _PDCLIB_sigabrt;
+ _PDCLIB_sigabrt = func;
+ break;
+ case SIGFPE:
+ oldhandler = _PDCLIB_sigfpe;
+ _PDCLIB_sigfpe = func;
+ break;
+ case SIGILL:
+ oldhandler = _PDCLIB_sigill;
+ _PDCLIB_sigill = func;
+ break;
+ case SIGINT:
+ oldhandler = _PDCLIB_sigint;
+ _PDCLIB_sigint = func;
+ break;
+ case SIGSEGV:
+ oldhandler = _PDCLIB_sigsegv;
+ _PDCLIB_sigsegv = func;
+ break;
+ case SIGTERM:
+ oldhandler = _PDCLIB_sigterm;
+ _PDCLIB_sigterm = func;
+ break;
+ default:
+ errno = EINVAL;
+ return SIG_ERR;
+ }
+ return oldhandler;
+}
+
+#endif
+
+#ifdef TEST
+#include <_PDCLIB_test.h>
+
+int main( void )
+{
+ /* Testing covered by raise.c */
+ return TEST_RESULTS;
+}
+#endif