+/* $Id$ */
+
+/* Release $Name$ */
+
+/* strstr( const char *, const char * )
+
+ This file is part of the Public Domain C Library (PDCLib).
+ Permission is granted to use, modify, and / or redistribute at will.
+*/
+
+#include <string.h>
+
+char * strstr( const char * s1, const char * s2 )
+{
+ const char * p1 = s1;
+ const char * p2;
+ while ( *s1 )
+ {
+ p2 = s2;
+ while ( *p2 && ( *p1 == *p2 ) )
+ {
+ ++p1;
+ ++p2;
+ }
+ if ( ! *p2 )
+ {
+ return (char *) s1;
+ }
+ ++s1;
+ p1 = s1;
+ }
+ return NULL;
+}