How to decode bplist?

[ipfans]

How to decode bplist?

[DHowett]

Interesting! Can you send (or post somewhere) the bplist? I've run a
gauntlet of test cases, but I feel like I'm breaking something somewhere.
Thanks!

-- Dustin L. Howett

On Mon, Jan 13, 2014 at 1:20 AM, ipfans [email protected] wrote:

I'm trying to write a universal bplist decode for windows by go-list.

But It seems that it doesn't work:

package main
import (
"github.com/DHowett/go-plist"
"os"
"fmt"
"io/ioutil"
"bytes"
)
func main() {
if len(os.Args) != 2 {
fmt.Println("decoder.exe [Info.plist]")
return
}
filename := os.Args[1]
filebuf,err := ioutil.ReadFile(filename)
if err != nil{
fmt.Println(err)
return
}
var bval interface{}
reader := bytes.NewReader(filebuf)
decoder := plist.NewDecoder(reader)
decoder.Decode(bval)
fmt.Println(bval)
}

bval will be nil.

Should I know the plist file content?

Such as

package main
import (
"github.com/DHowett/go-plist"
"os"
"fmt"
"io/ioutil"
"bytes"
)
func main() {
if len(os.Args) != 2 {
fmt.Println("decoder.exe [Info.plist]")
return
}
filename := os.Args[1]
filebuf,err := ioutil.ReadFile(filename)
if err != nil{
fmt.Println(err)
return
}

type sparseBundleHeader struct {
    CFBundleName        string `plist:"CFBundleName"`
    CFBundleExecuteable string `plist:"CFBundleExecuteable"`
}
var bval sparseBundleHeader
reader := bytes.NewReader(filebuf)
decoder := plist.NewDecoder(reader)
decoder.Decode(bval)
fmt.Println(bval)

}

will crash:

panic: reflect: reflect.Value.SetString using unaddressable value [recovered]
panic: interface conversion: string is not error: missing method Error

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[DHowett]

A-ha; You'll need to Decode(&bval) instead of Decode(bval)!
The output from your program with that fix:

map[DTSDKBuild:9A334 CFBundlePackageType:APPL DTCompiler:com.apple.compilers.llvm.clang.1_0 CFBundleSupportedPlatforms:[iPhoneOS] NSMainNibFile:MainWindow DTXcodeBuild:4C199 CFBundleVersion:1.0 CFBundleSignature:???? CFBundleIdentifier:com.appsec-labs.inalyzer5 CFBundleExecutable:iNalyzer MinimumOSVersion:3.0 DTSDKName:iphoneos5.0 DTPlatformName:iphoneos CFBundleName:iNalyzer5 LSRequiresIPhoneOS:true CFBundleDevelopmentRegion:English UIDeviceFamily:[1] DTPlatformBuild:9A334 DTPlatformVersion:5.0 DTXcode:0420 BuildMachineOSBuild:10K549 CFBundleDisplayName:iNalyzer5 CFBundleInfoDictionaryVersion:6.0]

[ipfans]

Oh, still my small mistake :)