+ if( !src[i] ) return i;
+
+ if( i == len-1 ){
+ if( behaviour == k_strncpy_always_add_null ){
+ dst[i] = '\0';
+ return i;
+ }
+ else if( behaviour == k_strncpy_overflow_fatal ){
+ vg_fatal_error( "Strncpy dest exceeded buffer length\n" );
+ }
+ }
+ }
+
+ return 0;
+}
+
+typedef struct vg_str vg_str;
+struct vg_str{
+ char *buffer;
+ u32 i, len;
+};
+
+static void vg_strnull( vg_str *str, char *buffer, u32 len )
+{
+ str->buffer = buffer;
+ str->buffer[0] = '\0';
+ str->i = 0;
+ str->len = len;
+}
+
+static void vg_strcat( vg_str *str, const char *append )
+{
+ if( !append ) return;
+ for( u32 i=0; str->i < str->len; i++, str->i ++ ){
+ str->buffer[ str->i ] = append[i];
+
+ if( append[i] == '\0' ) return;
+ }
+}
+
+static int vg_strgood( vg_str *str )
+{
+ if( str->i == str->len ){
+ if( str->buffer[str->i -1] == '\0' ) return 1;
+ else return 0;
+ }
+ else return 1;
+}