glibc/nis/nis_table.c
Ulrich Drepper 6f0ee4628f Update.
1998-04-03  Thorsten Kukuk  <kukuk@vt.uni-paderborn.de>

	* nis/nis_table.c (nis_list): Fix FOLLOW_PATH and ALL_RESULTS flags.
1998-04-03 12:19:27 +00:00

598 lines
14 KiB
C

/* Copyright (c) 1997, 1998 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 <string.h>
#include <rpcsvc/nis.h>
#include "nis_intern.h"
static void
splitname (const_nis_name name, nis_name *ibr_name, int *srch_len,
nis_attr **srch_val)
{
char *cptr, *key, *val, *next;
int size;
if (name == NULL)
return;
cptr = strdup (name);
if (srch_len)
*srch_len = 0;
if (srch_val)
*srch_val = NULL;
size = 0;
/* Not of "[key=value,key=value,...],foo.." format? */
if (cptr[0] != '[')
{
*ibr_name = cptr;
return;
}
*ibr_name = strchr (cptr, ']');
if (*ibr_name == NULL || (*ibr_name)[1] != ',')
{
free (cptr);
*ibr_name = NULL;
return;
}
*ibr_name[0] = '\0';
*ibr_name += 2;
*ibr_name = strdup (*ibr_name);
if (srch_len == NULL || srch_val == NULL)
{
free (cptr);
return;
}
key = (cptr) + 1;
do
{
next = strchr (key, ',');
if (next)
{
next[0] = '\0';
++next;
}
val = strchr (key, '=');
if (!val)
{
free (cptr);
*srch_val = malloc (sizeof (nis_attr));
if (*srch_val == NULL)
{
free (cptr);
free (*ibr_name);
*ibr_name = NULL;
return;
}
(*srch_val)[0].zattr_val.zattr_val_len = 0;
(*srch_val)[0].zattr_val.zattr_val_val = NULL;
return;
}
val[0] = '\0';
++val;
if ((*srch_len) + 1 >= size)
{
size += 10;
if (size == 10)
*srch_val = malloc (size * sizeof (char *));
else
*srch_val = realloc (val, size * sizeof (char *));
if (*srch_val == NULL)
{
free (cptr);
free (*ibr_name);
*ibr_name = NULL;
return;
}
}
(*srch_val)[*srch_len].zattr_ndx = strdup (key);
if (((*srch_val)[*srch_len].zattr_ndx) == NULL)
{
free (cptr);
free (*ibr_name);
*ibr_name = NULL;
return;
}
(*srch_val)[*srch_len].zattr_val.zattr_val_len = strlen (val) + 1;
(*srch_val)[*srch_len].zattr_val.zattr_val_val = strdup (val);
if ((*srch_val)[*srch_len].zattr_val.zattr_val_val == NULL)
{
free (cptr);
free (*ibr_name);
*ibr_name = NULL;
return;
}
++(*srch_len);
key = next;
}
while (next);
free (cptr);
}
static struct ib_request *
__create_ib_request (const_nis_name name, struct ib_request *ibreq,
u_long flags)
{
splitname (name, &ibreq->ibr_name, &ibreq->ibr_srch.ibr_srch_len,
&ibreq->ibr_srch.ibr_srch_val);
if (ibreq->ibr_name == NULL)
return NULL;
ibreq->ibr_flags = flags;
ibreq->ibr_obj.ibr_obj_len = 0;
ibreq->ibr_obj.ibr_obj_val = NULL;
ibreq->ibr_cbhost.ibr_cbhost_len = 0;
ibreq->ibr_cbhost.ibr_cbhost_val = NULL;
ibreq->ibr_bufsize = 0;
ibreq->ibr_cookie.n_len = 0;
ibreq->ibr_cookie.n_bytes = NULL;
return ibreq;
}
nis_result *
nis_list (const_nis_name name, u_long flags,
int (*callback) (const_nis_name name,
const nis_object *object,
const void *userdata),
const void *userdata)
{
nis_result *res = NULL;
ib_request *ibreq = calloc (1, sizeof (ib_request));
int status;
int count_links = 0; /* We will only follow NIS_MAXLINKS links! */
int done = 0;
nis_name *names;
nis_name namebuf[2] = {NULL, NULL};
int name_nr = 0;
nis_cb *cb = NULL;
res = calloc (1, sizeof (nis_result));
if (__create_ib_request (name, ibreq, flags) == NULL)
{
res->status = NIS_BADNAME;
return res;
}
if (flags & EXPAND_NAME)
{
names = nis_getnames (ibreq->ibr_name);
free (ibreq->ibr_name);
ibreq->ibr_name = NULL;
if (names == NULL)
{
res->status = NIS_BADNAME;
return res;
}
ibreq->ibr_name = strdup (names[name_nr]);
}
else
{
names = namebuf;
names[name_nr] = ibreq->ibr_name;
}
cb = NULL;
if (flags & FOLLOW_PATH || flags & ALL_RESULTS)
{
nis_result *lres;
u_long newflags = flags & ~FOLLOW_PATH & ~ALL_RESULTS;
char table_path[NIS_MAXPATH + 1];
char *ntable, *p;
u_long done = 0, failures = 0;
memset (res, '\0', sizeof (nis_result));
while (names[name_nr] != NULL && !done)
{
lres = nis_lookup (names[name_nr], newflags);
if (lres == NULL || lres->status != NIS_SUCCESS)
{
res->status = lres->status;
nis_freeresult (lres);
++name_nr;
continue;
}
/* nis_lookup handles FOLLOW_LINKS,
so we must have a table object. */
if (__type_of (NIS_RES_OBJECT (lres)) != NIS_TABLE_OBJ)
{
nis_freeresult (lres);
res->status = NIS_INVALIDOBJ;
break;
}
/* Save the path, discard everything else. */
snprintf (table_path, NIS_MAXPATH, "%s:%s", names[name_nr],
NIS_RES_OBJECT (lres)->TA_data.ta_path);
nis_freeresult (lres);
free (res);
res = NULL;
p = table_path;
while (((ntable = strsep (&p, ":")) != NULL) && !done)
{
char *c;
if (res != NULL)
nis_freeresult (res);
/* Do the job recursive here! */
if ((c = strchr(name, ']')) != NULL)
{
/* Have indexed name ! */
int index_len = c - name + 2;
char buf[index_len + strlen (ntable) + 1];
c = __stpncpy (buf, name, index_len);
strcpy (c, ntable);
res = nis_list (buf, newflags, callback,userdata);
}
else
res = nis_list (ntable, newflags, callback, userdata);
if (res == NULL)
return NULL;
switch (res->status)
{
case NIS_SUCCESS:
case NIS_CBRESULTS:
if (!(flags & ALL_RESULTS))
done = 1;
break;
case NIS_PARTIAL: /* The table is correct, we doesn't found
the entry */
break;
default:
if (flags & ALL_RESULTS)
++failures;
else
done = 1;
break;
}
}
if (res->status == NIS_SUCCESS && failures)
res->status = NIS_S_SUCCESS;
if (res->status == NIS_NOTFOUND && failures)
res->status = NIS_S_NOTFOUND;
break;
}
}
else
{
if (callback != NULL)
{
cb = __nis_create_callback (callback, userdata, flags);
ibreq->ibr_cbhost.ibr_cbhost_len = 1;
ibreq->ibr_cbhost.ibr_cbhost_val = cb->serv;
}
while (!done)
{
memset (res, '\0', sizeof (nis_result));
status = __do_niscall (ibreq->ibr_name, NIS_IBLIST,
(xdrproc_t) xdr_ib_request,
(caddr_t) ibreq, (xdrproc_t) xdr_nis_result,
(caddr_t) res, flags, cb);
if (status != NIS_SUCCESS)
res->status = status;
switch (res->status)
{
case NIS_PARTIAL:
case NIS_SUCCESS:
case NIS_S_SUCCESS:
if (__type_of (NIS_RES_OBJECT (res)) == NIS_LINK_OBJ &&
flags & FOLLOW_LINKS) /* We are following links. */
{
/* If we hit the link limit, bail. */
if (count_links > NIS_MAXLINKS)
{
res->status = NIS_LINKNAMEERROR;
++done;
break;
}
if (count_links)
free (ibreq->ibr_name);
++count_links;
free (ibreq->ibr_name);
ibreq->ibr_name =
strdup (NIS_RES_OBJECT (res)->LI_data.li_name);
if (NIS_RES_OBJECT (res)->LI_data.li_attrs.li_attrs_len)
if (ibreq->ibr_srch.ibr_srch_len == 0)
{
ibreq->ibr_srch.ibr_srch_len =
NIS_RES_OBJECT (res)->LI_data.li_attrs.li_attrs_len;
ibreq->ibr_srch.ibr_srch_val =
NIS_RES_OBJECT (res)->LI_data.li_attrs.li_attrs_val;
}
nis_freeresult (res);
res = calloc (1, sizeof (nis_result));
}
else
++done;
break;
case NIS_CBRESULTS:
/* Calback is handled in nis_call.c (__do_niscall2). */
++done;
break;
case NIS_UNAVAIL:
/* NIS+ is not installed, or all servers are down. */
++done;
break;
default:
/* Try the next domainname if we don't follow a link. */
if (count_links)
{
free (ibreq->ibr_name);
res->status = NIS_LINKNAMEERROR;
++done;
break;
}
++name_nr;
if (names[name_nr] == NULL)
{
++done;
break;
}
ibreq->ibr_name = names[name_nr];
break;
}
}
} /* End of not FOLLOW_PATH. */
if (names != namebuf)
nis_freenames (names);
if (cb)
{
__nis_destroy_callback (cb);
ibreq->ibr_cbhost.ibr_cbhost_len = 0;
ibreq->ibr_cbhost.ibr_cbhost_val = NULL;
}
nis_free_request (ibreq);
return res;
}
nis_result *
nis_add_entry (const_nis_name name, const nis_object *obj,
u_long flags)
{
nis_result *res;
nis_error status;
ib_request *ibreq = calloc (1, sizeof (ib_request));
char *p1, *p2, *p3, *p4;
char buf1[strlen (name) + 20];
char buf4[strlen (name) + 20];
res = calloc (1, sizeof (nis_result));
if (__create_ib_request (name, ibreq, flags) == NULL)
{
res->status = NIS_BADNAME;
return res;
}
ibreq->ibr_obj.ibr_obj_val = nis_clone_object (obj, NULL);
ibreq->ibr_obj.ibr_obj_len = 1;
p1 = ibreq->ibr_obj.ibr_obj_val->zo_name;
if (p1 == NULL || strlen (p1) == 0)
ibreq->ibr_obj.ibr_obj_val->zo_name =
nis_leaf_of_r (name, buf1, sizeof (buf1));
p2 = ibreq->ibr_obj.ibr_obj_val->zo_owner;
if (p2 == NULL || strlen (p2) == 0)
ibreq->ibr_obj.ibr_obj_val->zo_owner = nis_local_principal ();
p3 = ibreq->ibr_obj.ibr_obj_val->zo_group;
if (p3 == NULL || strlen (p3) == 0)
ibreq->ibr_obj.ibr_obj_val->zo_group = nis_local_group ();
p4 = ibreq->ibr_obj.ibr_obj_val->zo_domain;
ibreq->ibr_obj.ibr_obj_val->zo_domain =
nis_domain_of_r (name, buf4, sizeof (buf4));
if ((status = __do_niscall (ibreq->ibr_name, NIS_IBADD,
(xdrproc_t) xdr_ib_request,
(caddr_t) ibreq,
(xdrproc_t) xdr_nis_result,
(caddr_t) res, 0, NULL)) != NIS_SUCCESS)
res->status = status;
ibreq->ibr_obj.ibr_obj_val->zo_name = p1;
ibreq->ibr_obj.ibr_obj_val->zo_owner = p2;
ibreq->ibr_obj.ibr_obj_val->zo_group = p3;
ibreq->ibr_obj.ibr_obj_val->zo_domain = p4;
nis_free_request (ibreq);
return res;
}
nis_result *
nis_modify_entry (const_nis_name name, const nis_object *obj,
u_long flags)
{
nis_result *res;
nis_error status;
ib_request *ibreq = calloc (1, sizeof (ib_request));
char *p1, *p2, *p3, *p4;
char buf1[strlen (name) + 20];
char buf4[strlen (name) + 20];
res = calloc (1, sizeof (nis_result));
if (__create_ib_request (name, ibreq, flags) == NULL)
{
res->status = NIS_BADNAME;
return res;
}
ibreq->ibr_obj.ibr_obj_val = nis_clone_object (obj, NULL);
ibreq->ibr_obj.ibr_obj_len = 1;
p1 = ibreq->ibr_obj.ibr_obj_val->zo_name;
if (p1 == NULL || strlen (p1) == 0)
ibreq->ibr_obj.ibr_obj_val->zo_name =
nis_leaf_of_r (name, buf1, sizeof (buf1));
p2 = ibreq->ibr_obj.ibr_obj_val->zo_owner;
if (p2 == NULL || strlen (p2) == 0)
ibreq->ibr_obj.ibr_obj_val->zo_owner = nis_local_principal ();
p3 = ibreq->ibr_obj.ibr_obj_val->zo_group;
if (p3 == NULL || strlen (p3) == 0)
ibreq->ibr_obj.ibr_obj_val->zo_group = nis_local_group ();
p4 = ibreq->ibr_obj.ibr_obj_val->zo_domain;
ibreq->ibr_obj.ibr_obj_val->zo_domain =
nis_domain_of_r (name, buf4, sizeof (buf4));
if ((status = __do_niscall (ibreq->ibr_name, NIS_IBMODIFY,
(xdrproc_t) xdr_ib_request,
(caddr_t) ibreq, (xdrproc_t) xdr_nis_result,
(caddr_t) res, 0, NULL)) != NIS_SUCCESS)
res->status = status;
ibreq->ibr_obj.ibr_obj_val->zo_name = p1;
ibreq->ibr_obj.ibr_obj_val->zo_owner = p2;
ibreq->ibr_obj.ibr_obj_val->zo_group = p3;
ibreq->ibr_obj.ibr_obj_val->zo_domain = p4;
nis_free_request (ibreq);
return res;
}
nis_result *
nis_remove_entry (const_nis_name name, const nis_object *obj,
u_long flags)
{
nis_result *res;
ib_request *ibreq = calloc (1, sizeof (ib_request));
nis_error status;
res = calloc (1, sizeof (nis_result));
if (__create_ib_request (name, ibreq, flags) == NULL)
{
res->status = NIS_BADNAME;
return res;
}
if (obj != NULL)
{
ibreq->ibr_obj.ibr_obj_val = nis_clone_object (obj, NULL);
ibreq->ibr_obj.ibr_obj_len = 1;
}
if ((status = __do_niscall (ibreq->ibr_name, NIS_IBREMOVE,
(xdrproc_t) xdr_ib_request,
(caddr_t) ibreq, (xdrproc_t) xdr_nis_result,
(caddr_t) res, 0, NULL)) != NIS_SUCCESS)
res->status = status;
nis_free_request (ibreq);
return res;
}
nis_result *
nis_first_entry (const_nis_name name)
{
nis_result *res;
ib_request *ibreq = calloc (1, sizeof (ib_request));
nis_error status;
res = calloc (1, sizeof (nis_result));
if (__create_ib_request (name, ibreq, 0) == NULL)
{
res->status = NIS_BADNAME;
return res;
}
if ((status = __do_niscall (ibreq->ibr_name, NIS_IBFIRST,
(xdrproc_t) xdr_ib_request,
(caddr_t) ibreq, (xdrproc_t) xdr_nis_result,
(caddr_t) res, 0, NULL)) != NIS_SUCCESS)
res->status = status;
nis_free_request (ibreq);
return res;
}
nis_result *
nis_next_entry (const_nis_name name, const netobj *cookie)
{
nis_result *res;
ib_request *ibreq = calloc (1, sizeof (ib_request));
nis_error status;
res = calloc (1, sizeof (nis_result));
if (__create_ib_request (name, ibreq, 0) == NULL)
{
res->status = NIS_BADNAME;
return res;
}
if (cookie != NULL)
{
ibreq->ibr_cookie.n_bytes = malloc (cookie->n_len);
if (ibreq->ibr_cookie.n_bytes == NULL)
{
res->status = NIS_NOMEMORY;
free (res);
return NULL;
}
memcpy (ibreq->ibr_cookie.n_bytes, cookie->n_bytes, cookie->n_len);
ibreq->ibr_cookie.n_len = cookie->n_len;
}
if ((status = __do_niscall (ibreq->ibr_name, NIS_IBNEXT,
(xdrproc_t) xdr_ib_request,
(caddr_t) ibreq, (xdrproc_t) xdr_nis_result,
(caddr_t) res, 0, NULL)) != NIS_SUCCESS)
res->status = status;
nis_free_request (ibreq);
return res;
}