door_ucred(3C)						   Standard C Library Functions 					    door_ucred(3C)

NAME

       door_ucred - return credential information associated with the client

SYNOPSIS

       cc -mt [ flag... ] file... [ library... ]
       #include <door.h>

       int door_ucred(ucred_t **info);

DESCRIPTION

       The  door_ucred() function returns credential information associated with the client, if any, of the current door invocation.

       When  successful,  door_ucred()	writes	a  pointer to a user credential to the location pointed to by info if that location was previously
       NULL. If that location was non-null, door_ucred() assumes that info points to a previously allocated ucred_t  which  is	then  reused.  The
       location pointed to by info can be used multiple times before being freed. The value returned in info must be freed using ucred_free(3C).

       The  resulting  user  credential includes information about the effective user and group ID, the real user and group ID, all privilege sets
       and the calling PID.

       The credential information associated with the client refers to the information from the immediate caller, not necessarily from	the  first
       thread in a chain of door calls.

RETURN VALUES

       Upon  successful  completion,  door_ucred()  returns 0. Otherwise, -1 is returned and errno is set to indicate the error, in which case the
       memory location pointed to by the info argument is unchanged.

ERRORS

       The door_ucred() function will fail if:

       EAGAIN	 The location pointed to by info was NULL and allocating memory sufficient to hold a ucred failed.

       EFAULT	 The address of the info argument is invalid.

       EINVAL	 There is no associated door client.

       ENOMEM	 The location pointed to by info was NULL and allocating memory sufficient to hold a ucred failed.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Stable			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       door_call(3C), door_create(3C), ucred_get(3C), attributes(5)

SunOS 5.11							    22 Mar 2005 						    door_ucred(3C)