#include "libbb.h"
-char *concat_subpath_file(const char *path, const char *f)
+char* FAST_FUNC concat_subpath_file(const char *path, const char *f)
{
- if (f && *f == '.' && (!f[1] || (f[1] == '.' && !f[2])))
+ if (f && DOT_OR_DOTDOT(f))
return NULL;
return concat_path_file(path, f);
}