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Diffstat (limited to 'nis/nss_nisplus/nisplus-alias.c')
-rw-r--r--nis/nss_nisplus/nisplus-alias.c337
1 files changed, 0 insertions, 337 deletions
diff --git a/nis/nss_nisplus/nisplus-alias.c b/nis/nss_nisplus/nisplus-alias.c
deleted file mode 100644
index 8301e5a836..0000000000
--- a/nis/nss_nisplus/nisplus-alias.c
+++ /dev/null
@@ -1,337 +0,0 @@
-/* Copyright (C) 1997-2017 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 Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 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
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include <atomic.h>
-#include <nss.h>
-#include <errno.h>
-#include <ctype.h>
-#include <string.h>
-#include <aliases.h>
-#include <libc-lock.h>
-#include <rpcsvc/nis.h>
-
-#include "nss-nisplus.h"
-
-__libc_lock_define_initialized (static, lock)
-
-static nis_result *result;
-static u_long next_entry;
-static nis_name tablename_val;
-static size_t tablename_len;
-
-#define NISENTRYVAL(idx, col, res) \
- (NIS_RES_OBJECT (res)[idx].EN_data.en_cols.en_cols_val[col].ec_value.ec_value_val)
-
-#define NISENTRYLEN(idx, col, res) \
- (NIS_RES_OBJECT (res)[idx].EN_data.en_cols.en_cols_val[col].ec_value.ec_value_len)
-
-static enum nss_status
-_nss_create_tablename (int *errnop)
-{
- if (tablename_val == NULL)
- {
- const char *local_dir = nis_local_directory ();
- size_t local_dir_len = strlen (local_dir);
- static const char prefix[] = "mail_aliases.org_dir.";
-
- char *p = malloc (sizeof (prefix) + local_dir_len);
- if (p == NULL)
- {
- *errnop = errno;
- return NSS_STATUS_TRYAGAIN;
- }
-
- memcpy (__stpcpy (p, prefix), local_dir, local_dir_len + 1);
-
- tablename_len = sizeof (prefix) - 1 + local_dir_len;
-
- atomic_write_barrier ();
-
- tablename_val = p;
- }
-
- return NSS_STATUS_SUCCESS;
-}
-
-static int
-_nss_nisplus_parse_aliasent (nis_result *result, unsigned long entry,
- struct aliasent *alias, char *buffer,
- size_t buflen, int *errnop)
-{
- if (result == NULL)
- return 0;
-
- if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS)
- || __type_of (&NIS_RES_OBJECT (result)[entry]) != NIS_ENTRY_OBJ
- || strcmp (NIS_RES_OBJECT (result)[entry].EN_data.en_type,
- "mail_aliases") != 0
- || NIS_RES_OBJECT (result)[entry].EN_data.en_cols.en_cols_len < 2)
- return 0;
-
- if (NISENTRYLEN (entry, 1, result) >= buflen)
- {
- /* The line is too long for our buffer. */
- no_more_room:
- *errnop = ERANGE;
- return -1;
- }
-
- char *cp = __stpncpy (buffer, NISENTRYVAL (entry, 1, result),
- NISENTRYLEN (entry, 1, result));
- *cp = '\0';
-
- char *first_unused = cp + 1;
- size_t room_left = buflen - (first_unused - buffer);
-
- alias->alias_local = 0;
- alias->alias_members_len = 0;
-
- if (NISENTRYLEN (entry, 0, result) >= room_left)
- goto no_more_room;
-
- cp = __stpncpy (first_unused, NISENTRYVAL (entry, 0, result),
- NISENTRYLEN (entry, 0, result));
- *cp = '\0';
- alias->alias_name = first_unused;
-
- /* Terminate the line for any case. */
- cp = strpbrk (alias->alias_name, "#\n");
- if (cp != NULL)
- *cp = '\0';
-
- size_t len = strlen (alias->alias_name) + 1;
- first_unused += len;
- room_left -= len;
-
- /* Adjust the pointer so it is aligned for
- storing pointers. */
- size_t adjust = ((__alignof__ (char *)
- - (first_unused - (char *) 0) % __alignof__ (char *))
- % __alignof__ (char *));
- if (room_left < adjust)
- goto no_more_room;
- first_unused += adjust;
- room_left -= adjust;
-
- alias->alias_members = (char **) first_unused;
-
- char *line = buffer;
- while (*line != '\0')
- {
- /* Skip leading blanks. */
- while (isspace (*line))
- ++line;
-
- if (*line == '\0')
- break;
-
- if (room_left < sizeof (char *))
- goto no_more_room;
- room_left -= sizeof (char *);
- alias->alias_members[alias->alias_members_len] = line;
-
- while (*line != '\0' && *line != ',')
- ++line;
-
- if (line != alias->alias_members[alias->alias_members_len])
- {
- *line++ = '\0';
- ++alias->alias_members_len;
- }
- else if (*line == ',')
- ++line;
- }
-
- return alias->alias_members_len == 0 ? 0 : 1;
-}
-
-static enum nss_status
-internal_setaliasent (void)
-{
- enum nss_status status;
- int err;
-
- if (result != NULL)
- {
- nis_freeresult (result);
- result = NULL;
- }
-
- if (_nss_create_tablename (&err) != NSS_STATUS_SUCCESS)
- return NSS_STATUS_UNAVAIL;
-
- next_entry = 0;
- result = nis_list (tablename_val, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
- if (result == NULL)
- {
- status = NSS_STATUS_TRYAGAIN;
- __set_errno (ENOMEM);
- }
- else
- {
- status = niserr2nss (result->status);
- if (status != NSS_STATUS_SUCCESS)
- {
- nis_freeresult (result);
- result = NULL;
- }
- }
- return status;
-}
-
-enum nss_status
-_nss_nisplus_setaliasent (void)
-{
- enum nss_status status;
-
- __libc_lock_lock (lock);
-
- status = internal_setaliasent ();
-
- __libc_lock_unlock (lock);
-
- return status;
-}
-
-enum nss_status
-_nss_nisplus_endaliasent (void)
-{
- __libc_lock_lock (lock);
-
- if (result != NULL)
- {
- nis_freeresult (result);
- result = NULL;
- }
- next_entry = 0;
-
- __libc_lock_unlock (lock);
-
- return NSS_STATUS_SUCCESS;
-}
-
-static enum nss_status
-internal_nisplus_getaliasent_r (struct aliasent *alias,
- char *buffer, size_t buflen, int *errnop)
-{
- int parse_res;
-
- if (result == NULL)
- {
- enum nss_status status;
-
- status = internal_setaliasent ();
- if (result == NULL || status != NSS_STATUS_SUCCESS)
- return status;
- }
-
- /* Get the next entry until we found a correct one. */
- do
- {
- if (next_entry >= result->objects.objects_len)
- return NSS_STATUS_NOTFOUND;
-
- parse_res = _nss_nisplus_parse_aliasent (result, next_entry, alias,
- buffer, buflen, errnop);
- if (parse_res == -1)
- return NSS_STATUS_TRYAGAIN;
-
- ++next_entry;
- }
- while (!parse_res);
-
- return NSS_STATUS_SUCCESS;
-}
-
-enum nss_status
-_nss_nisplus_getaliasent_r (struct aliasent *result, char *buffer,
- size_t buflen, int *errnop)
-{
- int status;
-
- __libc_lock_lock (lock);
-
- status = internal_nisplus_getaliasent_r (result, buffer, buflen, errnop);
-
- __libc_lock_unlock (lock);
-
- return status;
-}
-
-enum nss_status
-_nss_nisplus_getaliasbyname_r (const char *name, struct aliasent *alias,
- char *buffer, size_t buflen, int *errnop)
-{
- int parse_res;
-
- if (tablename_val == NULL)
- {
- __libc_lock_lock (lock);
-
- enum nss_status status = _nss_create_tablename (errnop);
-
- __libc_lock_unlock (lock);
-
- if (status != NSS_STATUS_SUCCESS)
- return status;
- }
-
- if (name == NULL)
- {
- *errnop = EINVAL;
- return NSS_STATUS_UNAVAIL;
- }
-
- char buf[strlen (name) + 9 + tablename_len];
- int olderr = errno;
-
- snprintf (buf, sizeof (buf), "[name=%s],%s", name, tablename_val);
-
- nis_result *result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
-
- if (result == NULL)
- {
- *errnop = ENOMEM;
- return NSS_STATUS_TRYAGAIN;
- }
-
- if (__glibc_unlikely (niserr2nss (result->status) != NSS_STATUS_SUCCESS))
- {
- enum nss_status status = niserr2nss (result->status);
- nis_freeresult (result);
- return status;
- }
-
- parse_res = _nss_nisplus_parse_aliasent (result, 0, alias,
- buffer, buflen, errnop);
-
- /* We do not need the lookup result anymore. */
- nis_freeresult (result);
-
- if (__glibc_unlikely (parse_res < 1))
- {
- __set_errno (olderr);
-
- if (parse_res == -1)
- return NSS_STATUS_TRYAGAIN;
- else
- return NSS_STATUS_NOTFOUND;
- }
-
- return NSS_STATUS_SUCCESS;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-09 03:55:34 +0000