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PWCACHE(3)							    PWCACHE(3)

NAME
       pwcache - cache password and group entries

SYNOPSIS
       user_from_uid(uid, nouser)
       uid_t uid;
       int nouser;

       group_from_gid(gid, nogroup)
       gid_t gid;
       int nogroup;

DESCRIPTION
       This interface is not part of the C library.  It has been placed in the
       Berkeley utility library, libutil, as it is used	 by  several  standard
       utilities.

       The  user_from_uid  function  returns the user name associated with the
       argument uid.  The user name is cached so that multiple calls with  the
       same  uid  do not require additional calls to getpwuid(3).  If there is
       no user associated with the uid, a pointer is returned to an ASCII rep‐
       resentation  of	the  uid,  unless  the argument nouser is non-zero, in
       which case a NULL pointer is returned.

       The group_from_gid function returns the group name associated with  the
       argument gid.  The group name is cached so that multiple calls with the
       same gid do not require additional calls to getgrgid(3).	 If  there  is
       no  group  associated  with  the gid, a pointer is returned to an ASCII
       representation of the gid, unless the argument nogroup is non-zero,  in
       which case a NULL pointer is returned.

SEE ALSO
       getgrgid(3), getpwuid(3)

4.4 Berkeley Distribution	 June 23, 1990			    PWCACHE(3)

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