perkeep/third_party/github.com/ziutek/mymysql/native/init.go

66 lines
1.5 KiB
Go

package native
import (
"log"
)
func (my *Conn) init() {
my.seq = 0 // Reset sequence number, mainly for reconnect
if my.Debug {
log.Printf("[%2d ->] Init packet:", my.seq)
}
pr := my.newPktReader()
my.info.scramble = make([]byte, 20)
my.info.prot_ver = readByte(pr)
my.info.serv_ver = readNTS(pr)
my.info.thr_id = readU32(pr)
readFull(pr, my.info.scramble[0:8])
read(pr, 1)
my.info.caps = readU16(pr)
my.info.lang = readByte(pr)
my.status = readU16(pr)
read(pr, 13)
readFull(pr, my.info.scramble[8:])
// Skip other information
pr.readAll()
if my.Debug {
log.Printf(tab8s+"ProtVer=%d, ServVer=\"%s\" Status=0x%x",
my.info.prot_ver, my.info.serv_ver, my.status,
)
}
}
func (my *Conn) auth() {
if my.Debug {
log.Printf("[%2d <-] Authentication packet", my.seq)
}
pay_len := 4 + 4 + 1 + 23 + len(my.user) + 1 + 1 + len(my.info.scramble)
flags := uint32(
_CLIENT_PROTOCOL_41 |
_CLIENT_LONG_PASSWORD |
_CLIENT_SECURE_CONN |
_CLIENT_MULTI_STATEMENTS |
_CLIENT_MULTI_RESULTS |
_CLIENT_TRANSACTIONS,
)
if len(my.dbname) > 0 {
pay_len += len(my.dbname) + 1
flags |= _CLIENT_CONNECT_WITH_DB
}
encr_passwd := my.encryptedPasswd()
pw := my.newPktWriter(pay_len)
writeU32(pw, flags)
writeU32(pw, uint32(my.max_pkt_size))
writeByte(pw, my.info.lang) // Charset number
write(pw, make([]byte, 23)) // Filler
writeNTS(pw, my.user) // Username
writeBin(pw, encr_passwd) // Encrypted password
if len(my.dbname) > 0 {
writeNTS(pw, my.dbname)
}
return
}