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    Command:

    keyctl_set_timeout

    
    
    

    SYNOPSIS

           #include <keyutils.h>
    
           long keyctl_set_timeout(key_serial_t key, unsigned timeout);
    
    
    

    DESCRIPTION

           keyctl_set_timeout() sets the expiration timer on a key to timeout sec-
           onds into the future.  Setting timeout to zero cancels the  expiration,
           assuming the key hasn't already expired.
    
           When  the  key  expires, further attempts to access it will be met with
           error EKEYEXPIRED.
    
           The caller must have setattr permission on a key to be able change  its
           permissions mask.
    
    
    

    RETURN VALUE

           On  success  keyctl_set_timeout()  returns  0 .  On error, the value -1
           will be returned and errno will have been set to an appropriate  error.
    
    
    

    ERRORS

           ENOKEY The specified key does not exist.
    
           EKEYEXPIRED
                  The specified key has already expired.
    
           EKEYREVOKED
                  The specified key has been revoked.
    
           EACCES The  named  key exists, but does not grant setattr permission to
                  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),
           request-key(8)
    
    
    

    Linux 4 May 2006 KEYCTL_SET_TIMEOUT(3)

    
    
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