keyctl_set_timeout - Cheap VPS LLC

KEYCTL_SET_TIMEOUT


Section: Linux Key Management Calls (3)
Updated: 4 May 2006
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NAME

keyctl_set_timeout – Set the expiration timer on a key

 

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

seconds 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The specified key has been revoked.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)



 

Index



NAME

SYNOPSIS

DESCRIPTION

RETURN VALUE

ERRORS

LINKING

SEE ALSO



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