Trying to unmarshal a struct containing a string field fails on recent hg
checkout on 386-linux. Below is code demonstrating this:


package main

import "asn1"
import "bytes"
import "io/ioutil"

type Ok    struct { A, B int }
type Fails struct { S string; A, B int }

func main() {
    var ok Ok
    var fails Fails

    // This is ok
    buf := bytes.NewBuffer(nil)
    if e := asn1.Marshal(buf, Ok{0x22,0x33}); e!=nil {
        panic("Marshal")
    }
    if _, e := asn1.Unmarshal(&ok, buf.Bytes()); e!=nil {
        panic("Unmarshal")
    }

    // Now try it with a structure containing a string
    buf = bytes.NewBuffer(nil)
    if e := asn1.Marshal(buf, Fails{"foo", 0x22,0x33}); e!=nil {
        panic("Marshal2")
    }
    // write it to a file where it can be inspected, try with:
    // openssl asn1parse -inform DER -in /tmp/asn1.der
    ioutil.WriteFile("/tmp/asn1.der", buf.Bytes(), 0644)

    // The bug is here - this fails!
    if _, e := asn1.Unmarshal(&fails, buf.Bytes()); e!=nil {
        panic("Unmarshal2")
    }

}