Enum NetIfError 

pub enum NetIfError {
    InvalidName,
    NameTooLong,
    NotFound {
        name: String,
        source: Error,
    },
}

错误类型

Variants

InvalidName

网卡名包含内部 NUL 字节

NameTooLong

网卡名过长（超过 IFNAMSIZ-1）

NotFound

if_nametoindex 系统调用失败（网卡不存在或权限不足）

Fields

name: String

出错的网卡名

source: Error

底层 IO 错误（errno 转换）

Trait Implementations

impl Debug for NetIfError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for NetIfError

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for NetIfError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.