*/
+#include <ansidecl.h>
+#ifdef ANSI_PROTOTYPES
+#include <stddef.h>
+#else
+#define size_t unsigned long
+#endif
+
+extern size_t strlen PARAMS ((const char*));
+extern PTR malloc PARAMS ((size_t));
+extern PTR memcpy PARAMS ((PTR, const PTR, size_t));
+
char *
strdup(s)
- char *s;
+ const char *s;
{
- char *result = (char*)malloc(strlen(s) + 1);
- if (result == (char*)0)
- return (char*)0;
- strcpy(result, s);
- return result;
+ size_t len = strlen (s) + 1;
+ char *result = (char*) malloc (len);
+ if (result == (char*) 0)
+ return (char*) 0;
+ return (char*) memcpy (result, s, len);
}