osf1 man page for siad_get_groups

siad_get_groups(3)					     Library Functions Manual						siad_get_groups(3)

NAME
       siad_get_groups	 -  mechanism-specific routine called from sia_get_groups to fill in a user's supplementary groups for SIA (Security Inte-
       gration Architecture)

LIBRARY
       Standard C library (libc.so and libc.a)

SYNOPSIS
       #include <sia.h>
       #include <siad.h>

       int siad_get_groups( struct sia_context *context const char *username gid_t *buffer int *ngroups int maxgroups)

PARAMETERS
       A thread-specific allocation context, shared with other group-related calls such as siad_getgrent.  The name of the user  whose	supplemen-
       tary  group list is desired.  Pointer to storage for the list of groups.  It may already have some entries in it, depending on the incoming
       value of ngroups.  The number of slots in the buffer which are used.  Read on input, and updated as groups are  added  by  each	mechanism.
       The  maximum number of secondary groups for which buf has storage allocated.  It is not an error to have ngroups equal to maxgroups, but if
       another (unique) group is found beyond that limit, the routine is expected to return SIADFAIL|SIADSTOP to halt any further scan	for  addi-
       tional group information.

DESCRIPTION
       This  routine  is  responsible for ensuring that any group it adds to the list of GIDs found is not a duplicate.  __sia_isagroup(3) is pro-
       vided specifically to make that determination simpler for the mechanism developer.  It is not responsible for  calling  the  mechanism-spe-
       cific  siad_setgrent()  routine,  since	sia_get_groups()  makes  that  call.   The sia_get_groups() routine will also make the call to the
       siad_endgrent() routine.

       This routine, unlike most of the SIA mechanism-dependent routines, is optional.	If it is not provided, sia_get_groups() will use the mech-
       anism's	siad_getgrent()  routine  instead.  This routine is provided by mechanisms which have a faster method for finding the groups for a
       user than doing a simple getgrent() loop.

RETURN VALUES
       This routine should only return failure as described above or if the mechanism encounters an initialization error  that	prevents  scanning
       for group information.  In particular, it is not an error for a given mechanism to find no groups for a user.

       This  routine  returns  SIADSUCCESS  if	group  scanning was possible and the group list did not need additional storage.  It returns SIAD-
       FAIL|SIADSTOP if the group list did need more than maxgroups entries.  It returns SIADFAIL if the mechanism is unable to scan for groups at
       all.

RELATED INFORMATION
       sia_get_groups(3), siad_setgrent(3), siad_getgrent(3), siad_endgrent(3), matrix.conf(4),

       Security delim off

																siad_get_groups(3)