Enum coreutils_core::os::group::Error

pub enum Error {
    GetGroupFailed(String, i32),
    NameCheckFailed,
    PasswdCheckFailed,
    GroupNotFound,
    Io(IoError),
    Passwd(Box<PwError>),
}

Enum that holds possible errors while creating Group type.

Variants

GetGroupFailed(String, i32)

Happens when getgrgid_r, getgrnam_r or getgrouplist fails.

It holds the the function that was used and a error code of the function return.

NameCheckFailed

Happens when the pointer to the .gr_name is NULL.

PasswdCheckFailed

Happens when the pointer to the .gr_passwd is NULL.

GroupNotFound

Happens when the pointer of group primitive is NULL.

This can happen even if getgrgid_r or getgrnam_r return 0.

Io(IoError)

Happens when calling getgroups or getgrouplist C function.

Passwd(Box<PwError>)

Happens when creating a Passwd fails.

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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

The lower-level source of this error, if any.

fn backtrace(&self) -> Option<&Backtrace>

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

Returns a stack backtrace, if available, of where this error occurred.

fn description(&self) -> &str

Deprecated since 1.42.0:

use the Display impl or to_string()

if let Err(e) = "xc".parse::<u32>() { // Print e itself, no need for description(). eprintln!("Error: {}", e); }

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

Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

impl From<Error> for Error

fn from(err: IoError) -> Self

Performs the conversion.

impl From<Error> for Error

fn from(err: PwError) -> Self

Performs the conversion.

impl From<Error> for Error

fn from(err: GrError) -> Error

Performs the conversion.