418 lines
9.4 KiB
C
418 lines
9.4 KiB
C
/* Copyright (c) 1997 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <string.h>
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#include <rpcsvc/nis.h>
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#include <rpcsvc/nislib.h>
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#include "nis_intern.h"
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static void
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splitname (const nis_name name, nis_name *ibr_name, int *srch_len,
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nis_attr **srch_val)
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{
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char *cptr, *key, *val, *next;
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int size;
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if (name == NULL)
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return;
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cptr = strdup (name);
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if (srch_len)
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*srch_len = 0;
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if (srch_val)
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*srch_val = NULL;
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size = 0;
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/* Not of "[key=value,key=value,...],foo.." format? */
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if (cptr[0] != '[')
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{
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*ibr_name = cptr;
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return;
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}
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*ibr_name = strchr (cptr, ']');
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if (*ibr_name == NULL || (*ibr_name)[1] != ',')
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{
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free (cptr);
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*ibr_name = NULL;
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return;
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}
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*ibr_name[0] = '\0';
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*ibr_name += 2;
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*ibr_name = strdup (*ibr_name);
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if (srch_len == NULL || srch_val == NULL)
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{
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free (cptr);
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return;
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}
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key = (cptr) + 1;
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do
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{
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next = strchr (key, ',');
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if (next)
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{
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next[0] = '\0';
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++next;
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}
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val = strchr (key, '=');
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if (!val)
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{
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free (cptr);
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*srch_val = malloc (sizeof (char *));
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if (*srch_val == NULL)
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{
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free (cptr);
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free (*ibr_name);
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*ibr_name = NULL;
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return;
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}
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(*srch_val)[*srch_len].zattr_val.zattr_val_len = 0;
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(*srch_val)[*srch_len].zattr_val.zattr_val_val = NULL;
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return;
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}
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val[0] = '\0';
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++val;
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if ((*srch_len) + 1 >= size)
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{
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size += 10;
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if (size == 10)
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*srch_val = malloc (size * sizeof (char *));
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else
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*srch_val = realloc (val, size * sizeof (char *));
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if (*srch_val == NULL)
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{
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free (cptr);
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free (*ibr_name);
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*ibr_name = NULL;
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return;
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}
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}
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(*srch_val)[*srch_len].zattr_ndx = strdup (key);
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if (((*srch_val)[*srch_len].zattr_ndx) == NULL)
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{
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free (cptr);
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free (*ibr_name);
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*ibr_name = NULL;
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return;
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}
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(*srch_val)[*srch_len].zattr_val.zattr_val_len = strlen (val) + 1;
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(*srch_val)[*srch_len].zattr_val.zattr_val_val = strdup (val);
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if ((*srch_val)[*srch_len].zattr_val.zattr_val_val == NULL)
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{
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free (cptr);
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free (*ibr_name);
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*ibr_name = NULL;
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return;
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}
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++(*srch_len);
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key = next;
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}
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while (next);
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free (cptr);
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}
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static struct ib_request *
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__create_ib_request (const nis_name name, struct ib_request *ibreq,
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u_long flags)
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{
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splitname (name, &ibreq->ibr_name, &ibreq->ibr_srch.ibr_srch_len,
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&ibreq->ibr_srch.ibr_srch_val);
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if (ibreq->ibr_name == NULL)
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return NULL;
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if ((flags & EXPAND_NAME) == EXPAND_NAME)
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{
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nis_name *names;
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names = __nis_expandname (ibreq->ibr_name);
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free (ibreq->ibr_name);
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ibreq->ibr_name = NULL;
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if (names == NULL)
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return NULL;
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ibreq->ibr_name = strdup (names[0]);
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nis_freenames (names);
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}
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ibreq->ibr_flags = (flags & (RETURN_RESULT | ADD_OVERWRITE | REM_MULTIPLE |
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MOD_SAMEOBJ | ADD_RESERVED | REM_RESERVED |
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MOD_EXCLUSIVE));
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ibreq->ibr_obj.ibr_obj_len = 0;
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ibreq->ibr_obj.ibr_obj_val = NULL;
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ibreq->ibr_cbhost.ibr_cbhost_len = 0;
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ibreq->ibr_cbhost.ibr_cbhost_val = NULL;
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ibreq->ibr_bufsize = 0;
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ibreq->ibr_cookie.n_len = 0;
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ibreq->ibr_cookie.n_bytes = NULL;
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return ibreq;
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}
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nis_result *
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nis_list (const nis_name name, const u_long flags,
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int (*callback) (const nis_name name,
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const nis_object *object,
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const void *userdata),
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const void *userdata)
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{
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nis_result *res = NULL;
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struct ib_request ibreq;
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int result;
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int count_links = 0; /* We will only follow 16 links! */
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int is_link = 1; /* We should go at least once in the while loop */
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res = calloc (1, sizeof (nis_result));
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if (__create_ib_request (name, &ibreq, flags) == NULL)
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{
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res->status = NIS_BADNAME;
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return res;
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}
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while (is_link)
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{
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memset (res, '\0', sizeof (nis_result));
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if ((result = __do_niscall (NULL, 0, NIS_IBLIST,
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(xdrproc_t) xdr_ib_request,
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(caddr_t) & ibreq, (xdrproc_t) xdr_nis_result,
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(caddr_t) res, flags)) != RPC_SUCCESS)
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{
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res->status = result;
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nis_free_request (&ibreq);
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return res;
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}
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nis_free_request (&ibreq);
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if ((res->status == NIS_SUCCESS || res->status == NIS_S_SUCCESS) &&
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(res->objects.objects_len > 0 &&
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res->objects.objects_val->zo_data.zo_type == LINK_OBJ))
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is_link = 1;
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else
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is_link = 0;
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if (is_link)
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{
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if ((flags & FOLLOW_LINKS) == FOLLOW_LINKS)
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{
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if (count_links == 16)
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{
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res->status = NIS_LINKNAMEERROR;
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return res;
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}
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else
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++count_links;
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if (__create_ib_request (res->objects.objects_val->LI_data.li_name,
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&ibreq, flags) == NULL)
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{
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res->status = NIS_BADNAME;
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return res;
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}
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}
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else
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{
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res->status = NIS_NOTSEARCHABLE;
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return res;
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}
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}
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}
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if (callback != NULL &&
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(res->status == NIS_SUCCESS || res->status == NIS_S_SUCCESS))
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{
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unsigned int i;
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for (i = 0; i < res->objects.objects_len; ++i)
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if ((*callback) (name, &(res->objects.objects_val)[i], userdata) != 0)
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break;
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}
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return res;
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}
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nis_result *
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nis_add_entry (const nis_name name, const nis_object *obj,
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const u_long flags)
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{
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nis_result *res;
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struct ib_request ibreq;
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nis_error status;
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res = calloc (1, sizeof (nis_result));
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if (__create_ib_request (name, &ibreq, flags) == NULL)
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{
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res->status = NIS_BADNAME;
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return res;
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}
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ibreq.ibr_flags = flags;
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ibreq.ibr_obj.ibr_obj_val = nis_clone_object (obj, NULL);
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ibreq.ibr_obj.ibr_obj_len = 1;
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if ((status = __do_niscall (NULL, 0, NIS_IBADD,
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(xdrproc_t) xdr_ib_request,
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(caddr_t) & ibreq,
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(xdrproc_t) xdr_nis_result,
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(caddr_t) res, 0)) != RPC_SUCCESS)
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res->status = status;
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nis_free_request (&ibreq);
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return res;
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}
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nis_result *
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nis_modify_entry (const nis_name name, const nis_object *obj,
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const u_long flags)
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{
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nis_result *res;
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struct ib_request ibreq;
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nis_error status;
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res = calloc (1, sizeof (nis_result));
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if (__create_ib_request (name, &ibreq, flags) == NULL)
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{
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res->status = NIS_BADNAME;
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return res;
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}
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ibreq.ibr_flags = flags;
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ibreq.ibr_obj.ibr_obj_val = nis_clone_object (obj, NULL);
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ibreq.ibr_obj.ibr_obj_len = 1;
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if ((status = __do_niscall (NULL, 0, NIS_IBMODIFY,
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(xdrproc_t) xdr_ib_request,
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(caddr_t) & ibreq, (xdrproc_t) xdr_nis_result,
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(caddr_t) res, 0)) != RPC_SUCCESS)
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res->status = status;
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nis_free_request (&ibreq);
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return res;
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}
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nis_result *
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nis_remove_entry (const nis_name name, const nis_object *obj,
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const u_long flags)
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{
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nis_result *res;
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struct ib_request ibreq;
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nis_error status;
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res = calloc (1, sizeof (nis_result));
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if (__create_ib_request (name, &ibreq, flags) == NULL)
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{
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res->status = NIS_BADNAME;
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return res;
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}
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ibreq.ibr_flags = flags;
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if (obj != NULL)
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{
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ibreq.ibr_obj.ibr_obj_val = nis_clone_object (obj, NULL);
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ibreq.ibr_obj.ibr_obj_len = 1;
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}
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if ((status = __do_niscall (NULL, 0, NIS_IBREMOVE,
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(xdrproc_t) xdr_ib_request,
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(caddr_t) & ibreq, (xdrproc_t) xdr_nis_result,
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(caddr_t) res, 0)) != RPC_SUCCESS)
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res->status = status;
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nis_free_request (&ibreq);
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return res;
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}
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nis_result *
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nis_first_entry (const nis_name name)
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{
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nis_result *res;
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struct ib_request ibreq;
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nis_error status;
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res = calloc (1, sizeof (nis_result));
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if (__create_ib_request (name, &ibreq, 0) == NULL)
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{
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res->status = NIS_BADNAME;
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return res;
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}
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if ((status = __do_niscall (NULL, 0, NIS_IBFIRST, (xdrproc_t) xdr_ib_request,
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(caddr_t) & ibreq, (xdrproc_t) xdr_nis_result,
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(caddr_t) res, 0)) != RPC_SUCCESS)
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res->status = status;
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nis_free_request (&ibreq);
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return res;
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}
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nis_result *
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nis_next_entry (const nis_name name, const netobj *cookie)
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{
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nis_result *res;
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struct ib_request ibreq;
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nis_error status;
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res = calloc (1, sizeof (nis_result));
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if (__create_ib_request (name, &ibreq, 0) == NULL)
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{
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res->status = NIS_BADNAME;
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return res;
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}
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if (cookie != NULL)
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{
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ibreq.ibr_cookie.n_bytes = malloc (cookie->n_len);
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if (ibreq.ibr_cookie.n_bytes == NULL)
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{
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res->status = NIS_NOMEMORY;
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free (res);
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return NULL;
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}
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memcpy (ibreq.ibr_cookie.n_bytes, cookie->n_bytes, cookie->n_len);
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ibreq.ibr_cookie.n_len = cookie->n_len;
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}
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if ((status = __do_niscall (NULL, 0, NIS_IBNEXT, (xdrproc_t) xdr_ib_request,
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(caddr_t) & ibreq, (xdrproc_t) xdr_nis_result,
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(caddr_t) res, 0)) != RPC_SUCCESS)
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res->status = status;
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nis_free_request (&ibreq);
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return res;
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}
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