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Diffstat (limited to 'REORG.TODO/nss/nss_db/db-netgrp.c')
-rw-r--r--REORG.TODO/nss/nss_db/db-netgrp.c122
1 files changed, 122 insertions, 0 deletions
diff --git a/REORG.TODO/nss/nss_db/db-netgrp.c b/REORG.TODO/nss/nss_db/db-netgrp.c
new file mode 100644
index 0000000000..25530cc206
--- /dev/null
+++ b/REORG.TODO/nss/nss_db/db-netgrp.c
@@ -0,0 +1,122 @@
+/* Netgroup file parser in nss_db modules.
+ Copyright (C) 1996-2017 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
+
+ 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 <ctype.h>
+#include <dlfcn.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <netgroup.h>
+#include <string.h>
+#include <stdint.h>
+#include <libc-lock.h>
+#include <paths.h>
+#include <stdlib.h>
+
+#include "nsswitch.h"
+#include "nss_db.h"
+
+/* The hashing function we use. */
+#include "../intl/hash-string.h"
+
+
+#define DBFILE _PATH_VARDB "netgroup.db"
+
+/* Maintenance of the shared handle open on the database. */
+enum nss_status
+_nss_db_setnetgrent (const char *group, struct __netgrent *result)
+{
+ struct nss_db_map state;
+ enum nss_status status = internal_setent (DBFILE, &state);
+
+ if (status == NSS_STATUS_SUCCESS)
+ {
+ const struct nss_db_header *header = state.header;
+ const stridx_t *hashtable
+ = (const stridx_t *) ((const char *) header
+ + header->dbs[0].hashoffset);
+ const char *valstrtab = (const char *) header + header->valstroffset;
+ uint32_t hashval = __hash_string (group);
+ size_t grouplen = strlen (group);
+ size_t hidx = hashval % header->dbs[0].hashsize;
+ size_t hval2 = 1 + hashval % (header->dbs[0].hashsize - 2);
+
+ status = NSS_STATUS_NOTFOUND;
+ while (hashtable[hidx] != ~((stridx_t) 0))
+ {
+ const char *valstr = valstrtab + hashtable[hidx];
+
+ if (strncmp (valstr, group, grouplen) == 0
+ && isblank (valstr[grouplen]))
+ {
+ const char *cp = &valstr[grouplen + 1];
+ while (isblank (*cp))
+ ++cp;
+ if (*cp != '\0')
+ {
+ result->data = strdup (cp);
+ if (result->data == NULL)
+ status = NSS_STATUS_TRYAGAIN;
+ else
+ {
+ status = NSS_STATUS_SUCCESS;
+ result->cursor = result->data;
+ }
+ break;
+ }
+ }
+
+ if ((hidx += hval2) >= header->dbs[0].hashsize)
+ hidx -= header->dbs[0].hashsize;
+ }
+
+ internal_endent (&state);
+ }
+
+ return status;
+
+}
+
+
+enum nss_status
+_nss_db_endnetgrent (struct __netgrent *result)
+{
+ free (result->data);
+ result->data = NULL;
+ result->data_size = 0;
+ result->cursor = NULL;
+ return NSS_STATUS_SUCCESS;
+}
+
+
+extern enum nss_status _nss_netgroup_parseline (char **cursor,
+ struct __netgrent *result,
+ char *buffer, size_t buflen,
+ int *errnop);
+
+enum nss_status
+_nss_db_getnetgrent_r (struct __netgrent *result, char *buffer, size_t buflen,
+ int *errnop)
+{
+ enum nss_status status;
+
+ status = _nss_netgroup_parseline (&result->cursor, result, buffer, buflen,
+ errnop);
+
+ return status;
+}