package main

import (
    "fmt"
    "io"
    "os"
    
    "github.com/asalih/go-ewf/evf1"
    "github.com/asalih/go-ewf/evf2"
)

func main() {
    // Open an E01 file
    file, _ := os.Open("image.E01")
    defer file.Close()
    
    // For EVF1 (E01)
    reader, _ := evf1.OpenEWF(file)
    
    // Or for EVF2 (Ex01)
    // reader, _ := evf2.OpenEWF(file)
    
    // Get metadata
    metadata := reader.Metadata()
    fmt.Printf("Metadata: %+v\n", metadata)
    
    // Get size
    fmt.Printf("Image size: %d bytes\n", reader.Size())
    
    // Read data
    buf := make([]byte, 4096)
    n, _ := reader.Read(buf)
    fmt.Printf("Read %d bytes\n", n)
    
    // Random access
    reader.ReadAt(buf, 1024*1024) // Read at 1MB offset
}

package main

import (
    "io"
    "os"
    
    "github.com/asalih/go-ewf/evf1"
    "github.com/asalih/go-ewf/evf2"
)

func main() {
    // Create output file
    outFile, _ := os.Create("output.Ex01")
    defer outFile.Close()
    
    // Create EVF2 writer
    creator, _ := evf2.CreateEWF(outFile)
    
    // Add metadata
    creator.AddCaseData(evf2.EWF_CASE_DATA_CASE_NUMBER, "CASE-001")
    creator.AddCaseData(evf2.EWF_CASE_DATA_EXAMINER_NAME, "John Doe")
    creator.AddDeviceInformation(evf2.EWF_DEVICE_INFO_DRIVE_MODEL, "Virtual Drive")
    
    // Start writing (provide total size for EVF2)
    sourceFile, _ := os.Open("source.dd")
    defer sourceFile.Close()
    
    stat, _ := sourceFile.Stat()
    writer, _ := creator.Start(stat.Size())
    
    // Write data
    io.Copy(writer, sourceFile)
    
    // Close (computes and writes hashes)
    writer.Close()
}