int buf_compare_case (const char *, const char *, size_t);
int buf_compare_rpad (const char *, size_t, const char *, size_t);
void buf_copy_lpad (char *, size_t, const char *, size_t, char pad);
int buf_compare_case (const char *, const char *, size_t);
int buf_compare_rpad (const char *, size_t, const char *, size_t);
void buf_copy_lpad (char *, size_t, const char *, size_t, char pad);