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/* Copyright (c) 1997 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <rpcsvc/nis.h>
#include <rpcsvc/nislib.h>
nis_name
nis_local_group (void)
{
static char __nisgroup[NIS_MAXNAMELEN + 1];
if (__nisgroup[0] == '\0')
{
char *cptr;
if ((cptr = getenv ("NIS_GROUP")) == NULL)
return __nisgroup;
if (strlen (cptr) >= NIS_MAXNAMELEN)
return __nisgroup;
strcpy (__nisgroup, cptr);
if (__nisgroup[strlen (__nisgroup) - 1] != '.')
{
cptr = nis_local_directory ();
if (strlen (__nisgroup) + strlen (cptr) + 1 < NIS_MAXNAMELEN)
{
strcat (__nisgroup, ".");
strcat (__nisgroup, cptr);
}
else
{
__nisgroup[0] = '\0';
return __nisgroup;
}
}
}
return __nisgroup;
}
nis_name
nis_local_directory (void)
{
static char __nisdomainname[NIS_MAXNAMELEN + 1];
int len;
if (__nisdomainname[0] == '\0')
{
if (getdomainname (__nisdomainname, NIS_MAXNAMELEN) < 0)
strcpy (__nisdomainname, "\0");
else
{
len = strlen (__nisdomainname);
/* Missing trailing dot? */
if (__nisdomainname[len - 1] != '.')
{
__nisdomainname[len] = '.';
__nisdomainname[len + 1] = '\0';
}
}
}
return __nisdomainname;
}
nis_name
nis_local_principal (void)
{
static char __principal[NIS_MAXNAMELEN + 1];
if (__principal[0] == '\0')
{
char buf[NIS_MAXNAMELEN + 1];
nis_result *res;
uid_t uid = geteuid ();
if (uid != 0)
{
snprintf (buf, NIS_MAXNAMELEN - 1,
"[auth_name=%d,auth_type=LOCAL],cred.org_dir.%s",
uid, nis_local_directory ());
if (buf[strlen (buf) - 1] != '.')
strcat (buf, ".");
res = nis_list (buf, USE_DGRAM + NO_AUTHINFO + FOLLOW_LINKS +
FOLLOW_PATH, NULL, NULL);
if (res == NULL)
{
strcpy (__principal, "nobody");
return __principal;
}
if (res->status == NIS_SUCCESS)
{
if (res->objects.objects_len > 1)
{
/* More than one principal with same uid? something
wrong with cred table. Should be unique Warn user
and continue. */
printf (_("\
LOCAL entry for UID %d in directory %s not unique\n"),
uid, nis_local_directory ());
}
strcpy (__principal, ENTRY_VAL (res->objects.objects_val, 0));
nis_freeresult (res);
return __principal;
}
else
{
nis_freeresult (res);
strcpy (__principal, "nobody");
return __principal;
}
}
else
{
strcpy (__principal, nis_local_host ());
return __principal;
}
/* Should be never reached */
strcpy (__principal, "nobody");
return __principal;
}
return __principal;
}
nis_name
nis_local_host (void)
{
static char __nishostname[NIS_MAXNAMELEN + 1];
int len;
if (__nishostname[0] == '\0')
{
if (gethostname (__nishostname, NIS_MAXNAMELEN) < 0)
__nishostname[0] = '\0';
else
{
char *cp;
len = strlen(__nishostname);
/* Hostname already fully qualified? */
if (__nishostname[len - 1] == '.')
return __nishostname;
if ((strlen (__nishostname) + strlen (nis_local_directory ()) + 1) >
NIS_MAXNAMELEN)
{
__nishostname[0] = '\0';
return __nishostname;
}
cp = &__nishostname[len];
*cp++ = '.';
strncpy (cp, nis_local_directory (), NIS_MAXNAMELEN - len -1);
__nishostname[NIS_MAXNAMELEN] = '\0';
}
}
return __nishostname;
}
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