NAME

       keyctl_join_session_keyring - join a different session keyring

SYNOPSIS

       #include <keyutils.h>

       key_serial_t keyctl_join_session_keyring(const char *name);

DESCRIPTION

       keyctl_join_session_keyring() changes the session keyring to which a process is subscribed.

       If name is NULL then a new anonymous keyring will be created, and the process will be subscribed to that.

       If  name  points  to  a  string, then if a keyring of that name is available, the process will attempt to
       subscribe to that keyring, giving an error if that is not permitted; otherwise a new keyring of that name
       is created and attached as the session keyring.

       To attach to an extant named keyring, the keyring must have search permission available  to  the  calling
       process.

RETURN VALUE

       On  success  keyctl_join_session_keyring()  returns the serial number of the key it found or created.  On
       error, the value -1 will be returned and errno will have been set to an appropriate error.

ERRORS

       ENOMEM Insufficient memory to create a key.

       EDQUOT The key quota for this user would be exceeded by creating this key or linking it to the keyring.

       EACCES The named keyring exists, but is not searchable by the calling process.

LINKING

       This is a library function that can  be  found  in  libkeyutils.   When  linking,  -lkeyutils  should  be
       specified to the linker.

SEE ALSO

       keyctl(1), add_key(2), keyctl(2), request_key(2), keyctl(3), keyrings(7), keyutils(7),
       session-keyring(7), user-session-keyring(7)

Linux                                              20 Feb 2014                    KEYCTL_JOIN_SESSION_KEYRING(3)