Function db_capture_zeropad

freebsd/ddb/db_capture.c:248–257

* Zero out any bytes left in the last block of the DDB capture buffer. This * is run shortly before writing the blocks to disk, rather than when output * capture is stopped, in order to avoid injecting nul's into the middle of * output. */

 * output.
 */
static void
db_capture_zeropad(void)
{
	u_int len;

	len = min(TEXTDUMP_BLOCKSIZE, (db_capture_bufsize -
	    db_capture_bufoff) % TEXTDUMP_BLOCKSIZE);
	bzero(db_capture_buf + db_capture_bufoff, len);
	db_capture_bufpadding = len;
}

/*
 * Reset capture state, which flushes buffers.