* \param pattern_len The length of the pattern in bytes.
* \param buf The buffer to search for the pattern.
* \param buf_size The number of bytes in \a buf.
+ *
+ * \return A pointer into \a buf or \p NULL if the pattern was not found.
*/
const char *search_pattern(const char *pattern, int pattern_len,
const char *buf, int buf_size)