keyctl_session_to_parent man page on Manjaro

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KEYCTL_SESSION_TO_PARENT(3Linux Key Management CallKEYCTL_SESSION_TO_PARENT(3)

NAME
       keyctl_session_to_parent - Set the parent process's session keyring

SYNOPSIS
       #include <keyutils.h>

       long keyctl_session_to_parent();

DESCRIPTION
       keyctl_session_to_parent()  changes  the	 session  keyring to which the
       calling process's parent subscribes to  be  the	that  of  the  calling
       process.

       The keyring must have link permission available to the calling process,
       the parent process must have the same UIDs/GIDs as the calling process,
       and the LSM must not reject the replacement.  Furthermore, this may not
       be used to affect init or a kernel thread.

       Note that the replacement will not take immediate effect upon the  par‐
       ent process, but will rather be deferred to the next time it returns to
       userspace from kernel space.

RETURN VALUE
       On success keyctl_session_to_parent() returns 0.	 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.

       EPERM  The credentials of the parent don't match those of the caller.

       EACCES The named keyring exists, but is not  linkable  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),
       session-keyring(7),
       user-session-keyring(7),
       keyutils(7),
       keyrings(7)

Linux				  20 Feb 2014	   KEYCTL_SESSION_TO_PARENT(3)
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