mirror of
https://github.com/injoyai/tdx.git
synced 2025-11-26 21:25:35 +08:00
73 lines
1.4 KiB
Go
73 lines
1.4 KiB
Go
package protocol
|
||
|
||
import (
|
||
"bytes"
|
||
bytes2 "github.com/injoyai/base/bytes"
|
||
"github.com/injoyai/conv"
|
||
"golang.org/x/text/encoding/simplifiedchinese"
|
||
"golang.org/x/text/transform"
|
||
"io"
|
||
)
|
||
|
||
func String(bs []byte) string {
|
||
return string(bytes2.Reverse(bs))
|
||
}
|
||
|
||
func Bytes(n any) []byte {
|
||
return bytes2.Reverse(conv.Bytes(n))
|
||
}
|
||
|
||
func Uint32(bs []byte) uint32 {
|
||
return conv.Uint32(bytes2.Reverse(bs))
|
||
}
|
||
|
||
func Uint16(bs []byte) uint16 {
|
||
return conv.Uint16(bytes2.Reverse(bs))
|
||
}
|
||
|
||
func UTF8ToGBK(text []byte) []byte {
|
||
r := bytes.NewReader(text)
|
||
decoder := transform.NewReader(r, simplifiedchinese.GBK.NewDecoder()) //GB18030
|
||
content, _ := io.ReadAll(decoder)
|
||
return bytes.ReplaceAll(content, []byte{0x00}, []byte{})
|
||
}
|
||
|
||
func getprice(b []byte, pos *int) int {
|
||
/*
|
||
0x7f与常量做与运算实质是保留常量（转换为二进制形式）的后7位数，既取值区间为[0,127]
|
||
0x3f与常量做与运算实质是保留常量（转换为二进制形式）的后6位数，既取值区间为[0,63]
|
||
|
||
0x80 1000 0000
|
||
0x7f 0111 1111
|
||
0x40 100 0000
|
||
0x3f 011 1111
|
||
*/
|
||
posByte := 6
|
||
bData := b[*pos]
|
||
data := int(bData & 0x3f)
|
||
bSign := false
|
||
if (bData & 0x40) > 0 {
|
||
bSign = true
|
||
}
|
||
|
||
if (bData & 0x80) > 0 {
|
||
for {
|
||
*pos += 1
|
||
bData = b[*pos]
|
||
data += (int(bData&0x7f) << posByte)
|
||
|
||
posByte += 7
|
||
|
||
if (bData & 0x80) <= 0 {
|
||
break
|
||
}
|
||
}
|
||
}
|
||
*pos++
|
||
|
||
if bSign {
|
||
data = -data
|
||
}
|
||
return data
|
||
}
|