// Package navicat implements the Navicat HTTP Tunnel protocol used by
// ntunnel_mysql.php (script version 206 in this repository).
//
// Every request is stateless: the PHP script opens a new MySQL connection,
// runs actn=C or actn=Q, and disconnects. See docs/PROTOCOL.md.
package navicat

const (
	Magic       uint32 = 1111
	Version202  uint16 = 202
	Version206  uint16 = 206
	HeaderSize         = 16

	ActionConnect = "C"
	ActionQuery   = "Q"

	ErrnoUnsupportedPHP  uint32 = 201
	ErrnoInvalidParams   uint32 = 202
	ErrnoMySQLMissing    uint32 = 203
	ErrnoInvalidToken    uint32 = 204

	sepMore byte = 0x01
	sepLast byte = 0x00
	markLong byte = 0xFE
	markNull byte = 0xFF
)