Berry failed port attempt leftovers :(

libstring/string.h

@@ -39,6 +39,14 @@ void* memchr (const void* s, unsigned char c, size_t n);
 
 void str_split_lines (const char* str, size_t total_len, void* ctx, strtokenize_cb_func_t cb);
 
+char* strcpy (char* strDest, const char* strSrc);
+
+int strncmp (const char* s1, const char* s2, size_t n);
+
+char* strstr (const char* str, const char* substring);
+
+char* strchr (register const char* s, int c);
+
 int isalnum (int c);
 
 int isalpha (int c);
@@ -65,4 +73,8 @@ int isascii (int c);
 
 int isblank (int c);
 
+int tolower (int chr);
+
+int toupper (int chr);
+
 #endif // _LIBSTRING_STRING_H