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# Gio::Credentials Class Reference

An object containing credentials. More...

`#include <giomm/credentials.h>`

Inheritance diagram for Gio::Credentials:
[legend]

List of all members.

## Public Member Functions
virtual | ~Credentials ()
GCredentials* | gobj ()
| Provides access to the underlying C GObject.
const GCredentials* | gobj () const
| Provides access to the underlying C GObject.
GCredentials* | gobj_copy ()
| Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.
Glib::ustring | to_string () const
| Creates a human-readable textual representation of credentials that can be used in logging and debug messages.
gpointer | get_native (CredentialsType native_type)
| Gets a pointer to native credentials of type native_type from credentials.
void | set_native (CredentialsType native_type, gpointer native)
| Copies the native credentials of type native_type from native into credentials.
bool | is_same_user (const Glib::RefPtr< const Credentials >& other_credentials)
| Checks if credentials and other_credentials is the same user.
## Static Public Member Functions
static Glib::RefPtr< Credentials > | create ()
## Protected Member Functions
| Credentials ()
## Related Functions
(Note that these are not member functions.)
Glib::RefPtr< Gio::Credentials > | wrap (GCredentials* object, bool take_copy=false)
| A Glib::wrap() method for this object.

## Detailed Description

An object containing credentials.

The Credentials type is a reference-counted wrapper for native credentials. This information is typically used for identifying, authenticating and authorizing other processes.

Some operating systems supports looking up the credentials of the remote peer of a communication endpoint - see e.g. Gio::Socket::get_credentials().

Some operating systems supports securely sending and receiving credentials over a Unix Domain Socket, see UnixCredentialsMessage, Gio::UnixConnection::send_credentials() and Gio::UnixConnection::receive_credentials() for details.

On Linux, the native credential type is a struct ucred - see the unix(7) man page for details. This corresponds to Gio::CREDENTIALS_TYPE_LINUX_UCRED.

On FreeBSD, the native credential type is a struct cmsgcred. This corresponds to Gio::CREDENTIALS_TYPE_FREEBSD_CMSGCRED.

Since glibmm 2.28:

## Constructor & Destructor Documentation

virtual Gio::Credentials::~Credentials | ( |  | ) | `[virtual]`

Gio::Credentials::Credentials | ( |  | ) | `[protected]`

## Member Function Documentation

static Glib::RefPtr<Credentials> Gio::Credentials::create | ( |  | ) | `[static]`

gpointer Gio::Credentials::get_native | ( | CredentialsType | native_type | ) |

Gets a pointer to native credentials of type native_type from credentials.

It is a programming error (which will cause an warning to be logged) to use this method if there is no Credentials support for the OS or if native_type isn't supported by the OS.

Since glibmm 2.26:

Parameters:

  native_type | The type of native credentials to get.

Returns:
  The pointer to native credentials or `0` if the operation there is no Credentials support for the OS or if native_type isn't supported by the OS. Do not free the returned data, it is owned by credentials.

GCredentials* Gio::Credentials::gobj | ( |  | ) | `[inline]`

Provides access to the underlying C GObject.

Reimplemented from Glib::ObjectBase.

const GCredentials* Gio::Credentials::gobj | ( |  | ) | const`[inline]`

Provides access to the underlying C GObject.

Reimplemented from Glib::ObjectBase.

GCredentials* Gio::Credentials::gobj_copy | ( |  | ) |

Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.

bool Gio::Credentials::is_same_user | ( | const Glib::RefPtr< const Credentials >& | other_credentials | ) |

Checks if credentials and other_credentials is the same user.

This operation can fail if Credentials is not supported on the the OS.

Since glibmm 2.26:

Parameters:

  other_credentials | A Credentials.

Returns:
  `true` if credentials and other_credentials has the same user, `false` otherwise or if error is set.

void Gio::Credentials::set_native | ( | CredentialsType | native_type,
|  | gpointer | native
| ) |  |

Copies the native credentials of type native_type from native into credentials.

It is a programming error (which will cause an warning to be logged) to use this method if there is no Credentials support for the OS or if native_type isn't supported by the OS.

Since glibmm 2.26:

Parameters:

  native_type | The type of native credentials to set.
  native | A pointer to native credentials.

Glib::ustring Gio::Credentials::to_string | ( |  | ) | const

Creates a human-readable textual representation of credentials that can be used in logging and debug messages.

The format of the returned string may change in future GLib release.

Since glibmm 2.26:

Returns:
  A string that should be freed with Glib::free().

## Friends And Related Function Documentation

Glib::RefPtr< Gio::Credentials > wrap | ( | GCredentials * | object,
|  | bool | take_copy = `false`
| ) |  | `[related]`

A Glib::wrap() method for this object.

Parameters:

  object | The C instance.
  take_copy | False if the result should take ownership of the C instance. True if it should take a new copy or ref.

Returns:
  A C++ instance that wraps this C instance.