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-rw-r--r--nis/nis_table.c417
1 files changed, 417 insertions, 0 deletions
diff --git a/nis/nis_table.c b/nis/nis_table.c
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+++ b/nis/nis_table.c
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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 <string.h>
+#include <rpcsvc/nis.h>
+#include <rpcsvc/nislib.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 (char *));
+ if (*srch_val == NULL)
+ {
+ free (cptr);
+ free (*ibr_name);
+ *ibr_name = NULL;
+ return;
+ }
+ (*srch_val)[*srch_len].zattr_val.zattr_val_len = 0;
+ (*srch_val)[*srch_len].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;
+ if ((flags & EXPAND_NAME) == EXPAND_NAME)
+ {
+ nis_name *names;
+
+ names = __nis_expandname (ibreq->ibr_name);
+ free (ibreq->ibr_name);
+ ibreq->ibr_name = NULL;
+ if (names == NULL)
+ return NULL;
+ ibreq->ibr_name = strdup (names[0]);
+ nis_freenames (names);
+ }
+
+ ibreq->ibr_flags = (flags & (RETURN_RESULT | ADD_OVERWRITE | REM_MULTIPLE |
+ MOD_SAMEOBJ | ADD_RESERVED | REM_RESERVED |
+ MOD_EXCLUSIVE));
+ 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, const u_long flags,
+ int (*callback) (const nis_name name,
+ const nis_object *object,
+ const void *userdata),
+ const void *userdata)
+{
+ nis_result *res = NULL;
+ struct ib_request ibreq;
+ int result;
+ int count_links = 0; /* We will only follow 16 links! */
+ int is_link = 1; /* We should go at least once in the while loop */
+
+ res = calloc (1, sizeof (nis_result));
+
+ if (__create_ib_request (name, &ibreq, flags) == NULL)
+ {
+ res->status = NIS_BADNAME;
+ return res;
+ }
+
+ while (is_link)
+ {
+ memset (res, '\0', sizeof (nis_result));
+
+ if ((result = __do_niscall (NULL, 0, NIS_IBLIST,
+ (xdrproc_t) xdr_ib_request,
+ (caddr_t) & ibreq, (xdrproc_t) xdr_nis_result,
+ (caddr_t) res, flags)) != RPC_SUCCESS)
+ {
+ res->status = result;
+ nis_free_request (&ibreq);
+ return res;
+ }
+
+ nis_free_request (&ibreq);
+
+ if ((res->status == NIS_SUCCESS || res->status == NIS_S_SUCCESS) &&
+ (res->objects.objects_len > 0 &&
+ res->objects.objects_val->zo_data.zo_type == LINK_OBJ))
+ is_link = 1;
+ else
+ is_link = 0;
+
+ if (is_link)
+ {
+ if ((flags & FOLLOW_LINKS) == FOLLOW_LINKS)
+ {
+ if (count_links == 16)
+ {
+ res->status = NIS_LINKNAMEERROR;
+ return res;
+ }
+ else
+ ++count_links;
+
+ if (__create_ib_request (res->objects.objects_val->LI_data.li_name,
+ &ibreq, flags) == NULL)
+ {
+ res->status = NIS_BADNAME;
+ return res;
+ }
+ }
+ else
+ {
+ res->status = NIS_NOTSEARCHABLE;
+ return res;
+ }
+ }
+ }
+
+ if (callback != NULL &&
+ (res->status == NIS_SUCCESS || res->status == NIS_S_SUCCESS))
+ {
+ unsigned int i;
+
+ for (i = 0; i < res->objects.objects_len; ++i)
+ if ((*callback) (name, &(res->objects.objects_val)[i], userdata) != 0)
+ break;
+ }
+
+ return res;
+}
+
+nis_result *
+nis_add_entry (const nis_name name, const nis_object *obj,
+ const u_long flags)
+{
+ nis_result *res;
+ struct ib_request ibreq;
+ nis_error status;
+
+ res = calloc (1, sizeof (nis_result));
+
+ if (__create_ib_request (name, &ibreq, flags) == NULL)
+ {
+ res->status = NIS_BADNAME;
+ return res;
+ }
+
+ ibreq.ibr_flags = flags;
+ ibreq.ibr_obj.ibr_obj_val = nis_clone_object (obj, NULL);
+ ibreq.ibr_obj.ibr_obj_len = 1;
+
+ if ((status = __do_niscall (NULL, 0, NIS_IBADD,
+ (xdrproc_t) xdr_ib_request,
+ (caddr_t) & ibreq,
+ (xdrproc_t) xdr_nis_result,
+ (caddr_t) res, 0)) != RPC_SUCCESS)
+ res->status = status;
+
+ nis_free_request (&ibreq);
+
+ return res;
+}
+
+nis_result *
+nis_modify_entry (const nis_name name, const nis_object *obj,
+ const u_long flags)
+{
+ nis_result *res;
+ struct ib_request ibreq;
+ nis_error status;
+
+ res = calloc (1, sizeof (nis_result));
+
+ if (__create_ib_request (name, &ibreq, flags) == NULL)
+ {
+ res->status = NIS_BADNAME;
+ return res;
+ }
+
+ ibreq.ibr_flags = flags;
+ ibreq.ibr_obj.ibr_obj_val = nis_clone_object (obj, NULL);
+ ibreq.ibr_obj.ibr_obj_len = 1;
+
+ if ((status = __do_niscall (NULL, 0, NIS_IBMODIFY,
+ (xdrproc_t) xdr_ib_request,
+ (caddr_t) & ibreq, (xdrproc_t) xdr_nis_result,
+ (caddr_t) res, 0)) != RPC_SUCCESS)
+ res->status = status;
+
+ nis_free_request (&ibreq);
+
+ return res;
+}
+
+nis_result *
+nis_remove_entry (const nis_name name, const nis_object *obj,
+ const u_long flags)
+{
+ nis_result *res;
+ struct ib_request ibreq;
+ nis_error status;
+
+ res = calloc (1, sizeof (nis_result));
+
+ if (__create_ib_request (name, &ibreq, flags) == NULL)
+ {
+ res->status = NIS_BADNAME;
+ return res;
+ }
+
+ ibreq.ibr_flags = flags;
+ 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 (NULL, 0, NIS_IBREMOVE,
+ (xdrproc_t) xdr_ib_request,
+ (caddr_t) & ibreq, (xdrproc_t) xdr_nis_result,
+ (caddr_t) res, 0)) != RPC_SUCCESS)
+ res->status = status;
+
+ nis_free_request (&ibreq);
+
+ return res;
+}
+
+nis_result *
+nis_first_entry (const nis_name name)
+{
+ nis_result *res;
+ struct ib_request ibreq;
+ 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 (NULL, 0, NIS_IBFIRST, (xdrproc_t) xdr_ib_request,
+ (caddr_t) & ibreq, (xdrproc_t) xdr_nis_result,
+ (caddr_t) res, 0)) != RPC_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;
+ struct ib_request ibreq;
+ 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 (NULL, 0, NIS_IBNEXT, (xdrproc_t) xdr_ib_request,
+ (caddr_t) & ibreq, (xdrproc_t) xdr_nis_result,
+ (caddr_t) res, 0)) != RPC_SUCCESS)
+ res->status = status;
+
+ nis_free_request (&ibreq);
+
+ return res;
+}
generated by cgit v1.1 at 2024-11-27 09:58:43 +0000