-/* Copyright (C) 1997,1998,2000-2003,2005,2006 Free Software Foundation, Inc.
+/* Copyright (C) 1997-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997.
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, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
#include <atomic.h>
#include <ctype.h>
#include <string.h>
#include <arpa/inet.h>
#include <rpcsvc/nis.h>
-#include <bits/libc-lock.h>
+#include <libc-lock.h>
#include "nss-nisplus.h"
static nis_name tablename_val;
static u_long tablename_len;
-#define NISENTRYVAL(idx,col,res) \
- ((res)->objects.objects_val[(idx)].EN_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val)
+#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) \
- ((res)->objects.objects_val[(idx)].EN_data.en_cols.en_cols_val[(col)].ec_value.ec_value_len)
+#define NISENTRYLEN(idx, col, res) \
+ (NIS_RES_OBJECT (res)[idx].EN_data.en_cols.en_cols_val[col].ec_value.ec_value_len)
static int
return 0;
if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS)
- || __type_of (result->objects.objects_val) != NIS_ENTRY_OBJ
- || strcmp (result->objects.objects_val[0].EN_data.en_type,
+ || __type_of (NIS_RES_OBJECT (result)) != NIS_ENTRY_OBJ
+ || strcmp (NIS_RES_OBJECT (result)[0].EN_data.en_type,
"networks_tbl") != 0
- || result->objects.objects_val[0].EN_data.en_cols.en_cols_len < 3)
+ || NIS_RES_OBJECT (result)[0].EN_data.en_cols.en_cols_len < 3)
return 0;
if (NISENTRYLEN (0, 0, result) >= room_left)
NISENTRYLEN (0, 0, result));
first_unused[NISENTRYLEN (0, 0, result)] = '\0';
network->n_name = first_unused;
- room_left -= (strlen (first_unused) +1);
- first_unused += strlen (first_unused) +1;
+ size_t len = strlen (first_unused) + 1;
+ room_left -= len;
+ first_unused += len;
+
network->n_addrtype = 0;
network->n_net = inet_network (NISENTRYVAL (0, 2, result));
- char *p = first_unused;
- char *line = p;
- for (unsigned int i = 0; i < result->objects.objects_len; ++i)
+ /* XXX Rewrite at some point to allocate the array first and then
+ copy the strings. It wasteful to first concatenate the strings
+ to just split them again later. */
+ char *line = first_unused;
+ for (unsigned int i = 0; i < NIS_RES_NUMOBJ (result); ++i)
{
if (strcmp (NISENTRYVAL (i, 1, result), network->n_name) != 0)
{
if (NISENTRYLEN (i, 1, result) + 2 > room_left)
goto no_more_room;
- *p++ = ' ';
- p = __stpncpy (p, NISENTRYVAL (i, 1, result),
- NISENTRYLEN (i, 1, result));
- *p = '\0';
+ *first_unused++ = ' ';
+ first_unused = __stpncpy (first_unused, NISENTRYVAL (i, 1, result),
+ NISENTRYLEN (i, 1, result));
room_left -= (NISENTRYLEN (i, 1, result) + 1);
}
}
- *p++ = '\0';
- first_unused = p;
+ *first_unused++ = '\0';
/* Adjust the pointer so it is aligned for
storing pointers. */
- first_unused += __alignof__ (char *) - 1;
- first_unused -= ((first_unused - (char *) 0) % __alignof__ (char *));
- network->n_aliases = (char **) first_unused;
- if (room_left < 2 * sizeof (char *))
+ size_t adjust = ((__alignof__ (char *)
+ - (first_unused - (char *) 0) % __alignof__ (char *))
+ % __alignof__ (char *));
+ if (room_left < adjust + sizeof (char *))
goto no_more_room;
- room_left -= (2 * sizeof (char *));
- network->n_aliases[0] = NULL;
+ first_unused += adjust;
+ room_left -= adjust;
+ network->n_aliases = (char **) first_unused;
+
+ /* For the terminating NULL pointer. */
+ room_left -= sizeof (char *);
unsigned int i = 0;
while (*line != '\0')
goto no_more_room;
room_left -= sizeof (char *);
- network->n_aliases[i] = line;
+ network->n_aliases[i++] = line;
while (*line != '\0' && *line != ' ')
++line;
if (*line == ' ')
- {
- *line = '\0';
- ++line;
- ++i;
- }
- else
- network->n_aliases[i + 1] = NULL;
+ *line++ = '\0';
}
+ network->n_aliases[i] = NULL;
return 1;
}
+
static enum nss_status
_nss_create_tablename (int *errnop)
{
}
result = nis_first_entry (tablename_val);
+ if (result == NULL)
+ {
+ *errnop = errno;
+ return NSS_STATUS_TRYAGAIN;
+ }
if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
{
int retval = niserr2nss (result->status);
}
else
{
- nis_result *res = nis_next_entry (tablename_val, &result->cookie);
saved_res = result;
- result = res;
+ result = nis_next_entry (tablename_val, &result->cookie);
+ if (result == NULL)
+ {
+ *errnop = errno;
+ return NSS_STATUS_TRYAGAIN;
+ }
if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
{
int retval = niserr2nss (result->status);
/* Search at first in the alias list, and use the correct name
for the next search */
snprintf (buf, sizeof (buf), "[name=%s],%s", name, tablename_val);
- result = nis_list (buf, FOLLOW_LINKS | FOLLOW_PATH, NULL, NULL);
+ result = nis_list (buf, FOLLOW_LINKS | FOLLOW_PATH | USE_DGRAM, NULL, NULL);
if (result != NULL)
{
}
nis_freeresult (result);
- result = nis_list (bufptr, FOLLOW_LINKS | FOLLOW_PATH, NULL, NULL);
+ result = nis_list (bufptr, FOLLOW_LINKS | FOLLOW_PATH | USE_DGRAM,
+ NULL, NULL);
}
if (result == NULL)
}
retval = niserr2nss (result->status);
- if (__builtin_expect (retval != NSS_STATUS_SUCCESS, 0))
+ if (__glibc_unlikely (retval != NSS_STATUS_SUCCESS))
{
if (retval == NSS_STATUS_TRYAGAIN)
{
char buf2[18];
int olderr = errno;
- struct in_addr in = inet_makeaddr (addr, 0);
+ struct in_addr in = { .s_addr = htonl (addr) };
strcpy (buf2, inet_ntoa (in));
size_t b2len = strlen (buf2);
while (1)
{
snprintf (buf, sizeof (buf), "[addr=%s],%s", buf2, tablename_val);
- nis_result *result = nis_list (buf, EXPAND_NAME, NULL, NULL);
+ nis_result *result = nis_list (buf, EXPAND_NAME | USE_DGRAM,
+ NULL, NULL);
if (result == NULL)
{
return NSS_STATUS_TRYAGAIN;
}
enum nss_status retval = niserr2nss (result->status);
- if (__builtin_expect (retval != NSS_STATUS_SUCCESS, 0))
+ if (__glibc_unlikely (retval != NSS_STATUS_SUCCESS))
{
if (b2len > 2 && buf2[b2len - 2] == '.' && buf2[b2len - 1] == '0')
{
removed (one by one) */
buf2[b2len - 2] = '\0';
b2len -= 2;
+ nis_freeresult (result);
continue;
}
projects / thirdparty / glibc.git / blobdiff