64 lines
1.1 KiB
Go
64 lines
1.1 KiB
Go
package main
|
|
|
|
import (
|
|
"bufio"
|
|
"encoding/hex"
|
|
"flag"
|
|
"fmt"
|
|
"os"
|
|
|
|
"git.frostfs.info/TrueCloudLab/tzhash/tz"
|
|
)
|
|
|
|
var (
|
|
concat = flag.Bool("concat", false, "Concatenate hashes")
|
|
filename = flag.String("file", "", "File to read from")
|
|
)
|
|
|
|
func main() {
|
|
var (
|
|
err error
|
|
file = os.Stdin
|
|
lines = make([]string, 0, 10)
|
|
)
|
|
|
|
flag.Parse()
|
|
if *filename != "" {
|
|
if file, err = os.Open(*filename); err != nil {
|
|
fatal("error while opening file: %v", err)
|
|
}
|
|
}
|
|
|
|
for f := bufio.NewScanner(file); f.Scan(); {
|
|
lines = append(lines, f.Text())
|
|
}
|
|
|
|
if *concat {
|
|
var (
|
|
h []byte
|
|
hashes = make([][]byte, len(lines))
|
|
)
|
|
for i := range lines {
|
|
if hashes[i], err = hex.DecodeString(lines[i]); err != nil {
|
|
fatal("error while decoding hex-string: %v", err)
|
|
}
|
|
}
|
|
h, err := tz.Concat(hashes)
|
|
if err != nil {
|
|
fatal("error while concatenating hashes: %v", err)
|
|
}
|
|
fmt.Println(hex.EncodeToString(h))
|
|
return
|
|
}
|
|
|
|
for i := range lines {
|
|
h := tz.Sum([]byte(lines[i]))
|
|
fmt.Println(hex.EncodeToString(h[:]))
|
|
}
|
|
}
|
|
|
|
func fatal(msg string, args ...interface{}) {
|
|
fmt.Printf(msg+"\n", args...)
|
|
os.Exit(1)
|
|
}
|