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25b5ffb6af
* Enables mssql support Port of dlobs work in gogs. Enables options in index.js Enables MSSQL as a database option in go. Sets ID to 0 on initial migration. Required for MSSQL insert statements. Signed-off-by: Beau Trepp <beautrepp@gmail.com> * Vendors in denisenkom/go-mssqldb Includes golang.org/x/crypto/md4 as this is required by go-msssqldb Signed-off-by: Beau Trepp <beautrepp@gmail.com>
100 lines
2 KiB
Go
100 lines
2 KiB
Go
package mssql
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import (
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"encoding/binary"
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)
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type ProcId struct {
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id uint16
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name string
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}
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// parameter flags
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const (
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fByRevValue = 1
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fDefaultValue = 2
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)
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type Param struct {
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Name string
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Flags uint8
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ti typeInfo
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buffer []byte
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}
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func MakeProcId(name string) (res ProcId) {
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res.name = name
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if len(name) == 0 {
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panic("Proc name shouln't be empty")
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}
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if len(name) >= 0xffff {
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panic("Invalid length of procedure name, should be less than 0xffff")
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}
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return res
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}
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const (
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fWithRecomp = 1
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fNoMetaData = 2
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fReuseMetaData = 4
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)
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var (
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Sp_Cursor = ProcId{1, ""}
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Sp_CursorOpen = ProcId{2, ""}
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Sp_CursorPrepare = ProcId{3, ""}
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Sp_CursorExecute = ProcId{4, ""}
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Sp_CursorPrepExec = ProcId{5, ""}
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Sp_CursorUnprepare = ProcId{6, ""}
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Sp_CursorFetch = ProcId{7, ""}
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Sp_CursorOption = ProcId{8, ""}
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Sp_CursorClose = ProcId{9, ""}
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Sp_ExecuteSql = ProcId{10, ""}
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Sp_Prepare = ProcId{11, ""}
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Sp_PrepExec = ProcId{13, ""}
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Sp_PrepExecRpc = ProcId{14, ""}
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Sp_Unprepare = ProcId{15, ""}
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)
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// http://msdn.microsoft.com/en-us/library/dd357576.aspx
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func sendRpc(buf *tdsBuffer, headers []headerStruct, proc ProcId, flags uint16, params []Param) (err error) {
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buf.BeginPacket(packRPCRequest)
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writeAllHeaders(buf, headers)
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if len(proc.name) == 0 {
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var idswitch uint16 = 0xffff
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err = binary.Write(buf, binary.LittleEndian, &idswitch)
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if err != nil {
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return
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}
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err = binary.Write(buf, binary.LittleEndian, &proc.id)
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if err != nil {
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return
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}
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} else {
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err = writeUsVarChar(buf, proc.name)
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if err != nil {
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return
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}
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}
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err = binary.Write(buf, binary.LittleEndian, &flags)
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if err != nil {
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return
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}
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for _, param := range params {
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if err = writeBVarChar(buf, param.Name); err != nil {
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return
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}
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if err = binary.Write(buf, binary.LittleEndian, param.Flags); err != nil {
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return
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}
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err = writeTypeInfo(buf, ¶m.ti)
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if err != nil {
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return
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}
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err = param.ti.Writer(buf, param.ti, param.buffer)
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if err != nil {
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return
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}
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}
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return buf.FinishPacket()
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}
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