errors.go

package extcap

import (
	"errors"
	"fmt"
	"runtime"
)

var (
	// ErrNoInterfaceSpecified is returned when start capture or query configuration options or query supported DLTs
	ErrNoInterfaceSpecified = errors.New("No interface specified")

	// ErrNoPipeProvided is returned when start capture and not provide pipe name to write
	ErrNoPipeProvided = errors.New("No FIFO pipe provided")

	// Invalid name of interface
	ErrInvalidInterface = errors.New("Invalid interface")
)

type Error struct {
	file    string
	line    int
	message string
	err     error
}

func (err *Error) Error() string {
	return fmt.Sprintf("%s:%d -- %s: %s", err.file, err.line, err.message, err.err)
}

func NewError(msg string, err error) *Error {
	e := &Error{
		message: msg,
		err:     err,
	}
	_, e.file, e.line, _ = runtime.Caller(1)
	return e
}