72 lines
1.1 KiB
Go
72 lines
1.1 KiB
Go
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package main
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import (
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"flag"
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"fmt"
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"git.wntrmute.dev/kyle/goutils/die"
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"io"
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"os"
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)
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func usage(w io.Writer, exc int) {
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fmt.Fprintln(w, `usage: dumpbytes <file>`)
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os.Exit(exc)
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}
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func printBytes(buf []byte) {
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fmt.Printf("\t")
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for i := 0; i < len(buf); i++ {
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fmt.Printf("0x%02x, ", buf[i])
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}
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fmt.Println()
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}
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func dumpFile(path string, indentLevel int) error {
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indent := ""
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for i := 0; i < indentLevel; i++ {
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indent += "\t"
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}
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file, err := os.Open(path)
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if err != nil {
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return err
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}
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defer file.Close()
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fmt.Printf("%svar buffer = []byte{\n", indent)
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for {
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buf := make([]byte, 8)
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n, err := file.Read(buf)
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if err == io.EOF {
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if n > 0 {
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fmt.Printf("%s", indent)
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printBytes(buf[:n])
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}
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break
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}
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if err != nil {
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return err
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}
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fmt.Printf("%s", indent)
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printBytes(buf[:n])
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}
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fmt.Printf("%s}\n", indent)
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return nil
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}
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func main() {
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indent := 0
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flag.Usage = func() { usage(os.Stderr, 0) }
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flag.IntVar(&indent, "n", 0, "indent level")
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flag.Parse()
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for _, file := range flag.Args() {
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err := dumpFile(file, indent)
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die.If(err)
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}
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}
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