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Diffstat (limited to 'Godeps/_workspace/src/github.com/go-sql-driver/mysql/driver.go')
-rw-r--r--Godeps/_workspace/src/github.com/go-sql-driver/mysql/driver.go140
1 files changed, 140 insertions, 0 deletions
diff --git a/Godeps/_workspace/src/github.com/go-sql-driver/mysql/driver.go b/Godeps/_workspace/src/github.com/go-sql-driver/mysql/driver.go
new file mode 100644
index 000000000..3cbbe6031
--- /dev/null
+++ b/Godeps/_workspace/src/github.com/go-sql-driver/mysql/driver.go
@@ -0,0 +1,140 @@
+// Copyright 2012 The Go-MySQL-Driver Authors. All rights reserved.
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this file,
+// You can obtain one at http://mozilla.org/MPL/2.0/.
+
+// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
+//
+// The driver should be used via the database/sql package:
+//
+// import "database/sql"
+// import _ "github.com/go-sql-driver/mysql"
+//
+// db, err := sql.Open("mysql", "user:password@/dbname")
+//
+// See https://github.com/go-sql-driver/mysql#usage for details
+package mysql
+
+import (
+ "database/sql"
+ "database/sql/driver"
+ "net"
+)
+
+// This struct is exported to make the driver directly accessible.
+// In general the driver is used via the database/sql package.
+type MySQLDriver struct{}
+
+// DialFunc is a function which can be used to establish the network connection.
+// Custom dial functions must be registered with RegisterDial
+type DialFunc func(addr string) (net.Conn, error)
+
+var dials map[string]DialFunc
+
+// RegisterDial registers a custom dial function. It can then be used by the
+// network address mynet(addr), where mynet is the registered new network.
+// addr is passed as a parameter to the dial function.
+func RegisterDial(net string, dial DialFunc) {
+ if dials == nil {
+ dials = make(map[string]DialFunc)
+ }
+ dials[net] = dial
+}
+
+// Open new Connection.
+// See https://github.com/go-sql-driver/mysql#dsn-data-source-name for how
+// the DSN string is formated
+func (d MySQLDriver) Open(dsn string) (driver.Conn, error) {
+ var err error
+
+ // New mysqlConn
+ mc := &mysqlConn{
+ maxPacketAllowed: maxPacketSize,
+ maxWriteSize: maxPacketSize - 1,
+ }
+ mc.cfg, err = parseDSN(dsn)
+ if err != nil {
+ return nil, err
+ }
+
+ // Connect to Server
+ if dial, ok := dials[mc.cfg.net]; ok {
+ mc.netConn, err = dial(mc.cfg.addr)
+ } else {
+ nd := net.Dialer{Timeout: mc.cfg.timeout}
+ mc.netConn, err = nd.Dial(mc.cfg.net, mc.cfg.addr)
+ }
+ if err != nil {
+ return nil, err
+ }
+
+ // Enable TCP Keepalives on TCP connections
+ if tc, ok := mc.netConn.(*net.TCPConn); ok {
+ if err := tc.SetKeepAlive(true); err != nil {
+ // Don't send COM_QUIT before handshake.
+ mc.netConn.Close()
+ mc.netConn = nil
+ return nil, err
+ }
+ }
+
+ mc.buf = newBuffer(mc.netConn)
+
+ // Reading Handshake Initialization Packet
+ cipher, err := mc.readInitPacket()
+ if err != nil {
+ mc.Close()
+ return nil, err
+ }
+
+ // Send Client Authentication Packet
+ if err = mc.writeAuthPacket(cipher); err != nil {
+ mc.Close()
+ return nil, err
+ }
+
+ // Read Result Packet
+ err = mc.readResultOK()
+ if err != nil {
+ // Retry with old authentication method, if allowed
+ if mc.cfg != nil && mc.cfg.allowOldPasswords && err == ErrOldPassword {
+ if err = mc.writeOldAuthPacket(cipher); err != nil {
+ mc.Close()
+ return nil, err
+ }
+ if err = mc.readResultOK(); err != nil {
+ mc.Close()
+ return nil, err
+ }
+ } else {
+ mc.Close()
+ return nil, err
+ }
+
+ }
+
+ // Get max allowed packet size
+ maxap, err := mc.getSystemVar("max_allowed_packet")
+ if err != nil {
+ mc.Close()
+ return nil, err
+ }
+ mc.maxPacketAllowed = stringToInt(maxap) - 1
+ if mc.maxPacketAllowed < maxPacketSize {
+ mc.maxWriteSize = mc.maxPacketAllowed
+ }
+
+ // Handle DSN Params
+ err = mc.handleParams()
+ if err != nil {
+ mc.Close()
+ return nil, err
+ }
+
+ return mc, nil
+}
+
+func init() {
+ sql.Register("mysql", &MySQLDriver{})
+}