05-13-2012
What OS are you running? What is the exact group name and the exact username or uid that needs to be part of the group?
It sounds more like the user needs sudo or pfexec or su or whatever -- to get to root.
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LEARN ABOUT DEBIAN
lfc_getidmap
LFC_GETIDMAP(3) LFC Library Functions LFC_GETIDMAP(3)
NAME
lfc_getidmap - get virtual uid/gid(s) associated with a given dn/role(s)
SYNOPSIS
#include <sys/types.h>
#include "lfc_api.h"
int lfc_getidmap (const char *username, int nbgroups, const char **groupnames, uid_t *userid, gid_t *gids)
int lfc_getidmapc (const char *username, const char *user_ca, int nbgroups, const char **groupnames, uid_t *userid, gid_t *gids)
DESCRIPTION
lfc_getidmap gets the virtual uid/gid(s) associated with a given dn/role(s). If the dn or any of the roles does not exist yet in the Data-
base an entry is added to the mapping table.
username
specifies the user name (dn). It must be at most 255 characters long.
user_ca
specifies the CA from the user proxy. It must be at most 255 characters long.
nbgroups
is the number of group names.
groupnames
is the address of an array of group names (vo/role). Each group name must be at most 255 characters long. This pointer can be
NULL. In this case the vo is obtained from a static mapping file.
userid specifies the address of a buffer to receive the Virtual User Id.
gids specifies the address of a buffer to receive the Virtual Group Ids. It must be big enough to receive nbgroups group ids, but at
least one group id in case nbgroups is zero.
RETURN VALUE
This routine returns 0 if the operation was successful or -1 if the operation failed. In the latter case, serrno is set appropriately.
ERRORS
ENOMEM Memory could not be allocated in the server to receive the group names or to send back the gids.
EACCES One of username, user_ca or the primary (first) group is banned.
EFAULT username, userid or gids is a NULL pointer.
EINVAL nbgroups is negative or the length of username, user_ca or of one of the group names exceeds 255.
SENOSHOST Host unknown.
SENOSSERV Service unknown.
SECOMERR Communication error.
SENOMAPFND DISABLEAUTOVIDS is set and username or one of the groups does not exist.
ENSNACT Name server is not running or is being shutdown.
LFC
$Date: 2010-08-04 09:58:47 +0200 (Wed, 04 Aug 2010) $ LFC_GETIDMAP(3)