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-rw-r--r--ChangeLog20
-rw-r--r--nis/nss_nisplus/nisplus-alias.c225
-rw-r--r--nis/nss_nisplus/nisplus-ethers.c128
-rw-r--r--nis/nss_nisplus/nisplus-hosts.c266
-rw-r--r--nis/nss_nisplus/nisplus-network.c215
-rw-r--r--nis/nss_nisplus/nisplus-proto.c245
-rw-r--r--nis/nss_nisplus/nisplus-rpc.c250
-rw-r--r--nis/nss_nisplus/nisplus-service.c259
8 files changed, 880 insertions, 728 deletions
diff --git a/ChangeLog b/ChangeLog
index d6ed64d804..4e8ee89335 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,23 @@
+2005-12-03 Ulrich Drepper <drepper@redhat.com>
+
+ * nis/nss_nisplus/nisplus-service.c: Fix locking to use
+ _nss_create_tablename. Avoid unnecessary copying, remove
+ unnecessary variables, general cleanup.
+ * nis/nss_nisplus/nisplus-rpc.c: Likewise.
+ * nis/nss_nisplus/nisplus-proto.c: Likewise..
+ * nis/nss_nisplus/nisplus-network.c: Fix locking to use
+ _nss_create_tablename. Avoid unnecessary copying, general cleanup.
+ * nis/nss_nisplus/nisplus-hosts.c (_nss_nisplus_getipnodebyname_r):
+ Removed.
+ Fix locking to use _nss_create_tablename. Avoid unnecessary copying,
+ general cleanup.
+ * nis/nss_nisplus/nisplus-ethers.c (_nss_nisplus_getntohost_r):
+ Correctly construct request.
+ Fix locking to use _nss_create_tablename. Avoid unnecessary copying,
+ general cleanup.
+ * nis/nss_nisplus/nisplus-alias.c: Fix locking to use
+ _nss_create_tablename. Avoid unnecessary copying, general cleanup.
+
2005-12-02 Ulrich Drepper <drepper@redhat.com>
* nis/nss_nisplus/nisplus-pwd.c (_nss_pwd_create_tablename):
diff --git a/nis/nss_nisplus/nisplus-alias.c b/nis/nss_nisplus/nisplus-alias.c
index 152e5fc3fc..6aa93ab3bc 100644
--- a/nis/nss_nisplus/nisplus-alias.c
+++ b/nis/nss_nisplus/nisplus-alias.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997, 1998, 2001, 2002, 2003 Free Software Foundation, Inc.
+/* Copyright (C) 1997,1998,2001,2002,2003,2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997.
@@ -17,6 +17,7 @@
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
+#include <atomic.h>
#include <nss.h>
#include <errno.h>
#include <ctype.h>
@@ -32,7 +33,7 @@ __libc_lock_define_initialized (static, lock)
static nis_result *result;
static u_long next_entry;
static nis_name tablename_val;
-static u_long tablename_len;
+static size_t 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)
@@ -45,19 +46,26 @@ _nss_create_tablename (int *errnop)
{
if (tablename_val == NULL)
{
- char buf [40 + strlen (nis_local_directory ())];
- char *p;
+ const char *local_dir = nis_local_directory ();
+ size_t local_dir_len = strlen (local_dir);
+ static const char prefix[] = "mail_aliases.org_dir.";
- p = __stpcpy (buf, "mail_aliases.org_dir.");
- p = __stpcpy (p, nis_local_directory ());
- tablename_val = __strdup (buf);
+ char *p = malloc (sizeof (prefix) + local_dir_len);
if (tablename_val == NULL)
{
*errnop = errno;
return NSS_STATUS_TRYAGAIN;
}
- tablename_len = strlen (tablename_val);
+
+ 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;
}
@@ -75,81 +83,73 @@ _nss_nisplus_parse_aliasent (nis_result *result, unsigned long entry,
"mail_aliases") != 0
|| result->objects.objects_val[entry].EN_data.en_cols.en_cols_len < 2)
return 0;
- else
+
+ char *first_unused = buffer + NISENTRYLEN (0, 1, result) + 1;
+ size_t room_left = (buflen - (buflen % __alignof__ (char *))
+ - NISENTRYLEN (0, 1, result) - 2);
+
+ if (NISENTRYLEN (entry, 1, result) >= buflen)
{
- char *first_unused = buffer + NISENTRYLEN (0, 1, result) + 1;
- size_t room_left =
- buflen - (buflen % __alignof__ (char *)) -
- NISENTRYLEN (0, 1, result) - 2;
- char *line;
- char *cp;
-
- if (NISENTRYLEN (entry, 1, result) >= buflen)
- {
- /* The line is too long for our buffer. */
- no_more_room:
- *errnop = ERANGE;
- return -1;
- }
- else
- {
- cp = __stpncpy (buffer, NISENTRYVAL (entry, 1, result),
- NISENTRYLEN (entry, 1, result));
- *cp = '\0';
- }
+ /* 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';
+
+ if (NISENTRYLEN(entry, 0, result) >= room_left)
+ goto no_more_room;
+
+ alias->alias_local = 0;
+ alias->alias_members_len = 0;
+ *first_unused = '\0';
+ ++first_unused;
+ 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';
+
+ first_unused += strlen (alias->alias_name) +1;
+ /* Adjust the pointer so it is aligned for
+ storing pointers. */
+ first_unused += __alignof__ (char *) - 1;
+ first_unused -= ((first_unused - (char *) 0) % __alignof__ (char *));
+ alias->alias_members = (char **) first_unused;
+
+ char *line = buffer;
+ while (*line != '\0')
+ {
+ /* Skip leading blanks. */
+ while (isspace (*line))
+ ++line;
+
+ if (*line == '\0')
+ break;
- if (NISENTRYLEN(entry, 0, result) >= room_left)
+ 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;
- alias->alias_local = 0;
- alias->alias_members_len = 0;
- *first_unused = '\0';
- ++first_unused;
- 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';
-
- first_unused += strlen (alias->alias_name) +1;
- /* Adjust the pointer so it is aligned for
- storing pointers. */
- first_unused += __alignof__ (char *) - 1;
- first_unused -= ((first_unused - (char *) 0) % __alignof__ (char *));
- alias->alias_members = (char **) first_unused;
-
- line = buffer;
-
- while (*line != '\0')
+ if (line != alias->alias_members[alias->alias_members_len])
{
- /* 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++;
- }
+ *line++ = '\0';
+ alias->alias_members_len++;
}
-
- return alias->alias_members_len == 0 ? 0 : 1;
}
+
+ return alias->alias_members_len == 0 ? 0 : 1;
}
static enum nss_status
@@ -158,9 +158,11 @@ internal_setaliasent (void)
enum nss_status status;
int err;
- if (result)
- nis_freeresult (result);
- result = NULL;
+ if (result != NULL)
+ {
+ nis_freeresult (result);
+ result = NULL;
+ }
if (_nss_create_tablename (&err) != NSS_STATUS_SUCCESS)
return NSS_STATUS_UNAVAIL;
@@ -203,9 +205,11 @@ _nss_nisplus_endaliasent (void)
{
__libc_lock_lock (lock);
- if (result)
- nis_freeresult (result);
- result = NULL;
+ if (result != NULL)
+ {
+ nis_freeresult (result);
+ result = NULL;
+ }
next_entry = 0;
__libc_lock_unlock (lock);
@@ -240,7 +244,8 @@ internal_nisplus_getaliasent_r (struct aliasent *alias,
return NSS_STATUS_TRYAGAIN;
++next_entry;
- } while (!parse_res);
+ }
+ while (!parse_res);
return NSS_STATUS_SUCCESS;
}
@@ -268,7 +273,12 @@ _nss_nisplus_getaliasbyname_r (const char *name, struct aliasent *alias,
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;
}
@@ -278,35 +288,34 @@ _nss_nisplus_getaliasbyname_r (const char *name, struct aliasent *alias,
*errnop = EINVAL;
return NSS_STATUS_UNAVAIL;
}
- else
- {
- nis_result *result;
- char buf[strlen (name) + 30 + tablename_len];
- int olderr = errno;
- sprintf (buf, "[name=%s],%s", name, tablename_val);
+ char buf[strlen (name) + 9 + tablename_len];
+ int olderr = errno;
- result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
+ snprintf (buf, sizeof (buf), "[name=%s],%s", name, tablename_val);
- if (result == NULL)
- {
- *errnop = ENOMEM;
- return NSS_STATUS_TRYAGAIN;
- }
- if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
- return niserr2nss (result->status);
+ nis_result *result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
- parse_res = _nss_nisplus_parse_aliasent (result, 0, alias,
- buffer, buflen, errnop);
- if (parse_res < 1)
- {
- __set_errno (olderr);
+ if (result == NULL)
+ {
+ *errnop = ENOMEM;
+ return NSS_STATUS_TRYAGAIN;
+ }
- if (parse_res == -1)
- return NSS_STATUS_TRYAGAIN;
- else
- return NSS_STATUS_NOTFOUND;
- }
- return NSS_STATUS_SUCCESS;
+ if (__builtin_expect (niserr2nss (result->status) != NSS_STATUS_SUCCESS, 0))
+ return niserr2nss (result->status);
+
+ parse_res = _nss_nisplus_parse_aliasent (result, 0, alias,
+ buffer, buflen, errnop);
+ if (__builtin_expect (parse_res < 1, 0))
+ {
+ __set_errno (olderr);
+
+ if (parse_res == -1)
+ return NSS_STATUS_TRYAGAIN;
+ else
+ return NSS_STATUS_NOTFOUND;
}
+
+ return NSS_STATUS_SUCCESS;
}
diff --git a/nis/nss_nisplus/nisplus-ethers.c b/nis/nss_nisplus/nisplus-ethers.c
index 028309c841..528ae88a0c 100644
--- a/nis/nss_nisplus/nisplus-ethers.c
+++ b/nis/nss_nisplus/nisplus-ethers.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997,1998,2000,2001,2002,2003 Free Software Foundation, Inc.
+/* Copyright (C) 1997,1998,2000-2003,2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Thorsten Kukuk <kukuk@suse.de>, 1997.
@@ -17,15 +17,17 @@
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
-#include <nss.h>
-#include <errno.h>
+#include <atomic.h>
#include <ctype.h>
-#include <string.h>
-#include <bits/libc-lock.h>
+#include <errno.h>
+#include <inttypes.h>
#include <netdb.h>
+#include <nss.h>
+#include <string.h>
#include <netinet/ether.h>
-#include <rpcsvc/nis.h>
#include <netinet/if_ether.h>
+#include <rpcsvc/nis.h>
+#include <bits/libc-lock.h>
#include "nss-nisplus.h"
@@ -70,7 +72,14 @@ _nss_nisplus_parse_etherent (nis_result *result, struct etherent *ether,
room_left -= (NISENTRYLEN (0, 0, result) +1);
ether->e_name = p;
- ether->e_addr = *ether_aton (NISENTRYVAL (0, 1, result));
+ struct ether_addr *ea = ether_aton (NISENTRYVAL (0, 1, result));
+ if (ea == NULL)
+ {
+ *errnop = EINVAL;
+ return -2;
+ }
+
+ ether->e_addr = *ea;
return 1;
}
@@ -80,18 +89,24 @@ _nss_create_tablename (int *errnop)
{
if (tablename_val == NULL)
{
- char buf [40 + strlen (nis_local_directory ())];
- char *p;
+ const char *local_dir = nis_local_directory ();
+ size_t local_dir_len = strlen (local_dir);
+ static const char prefix[] = "ethers.org_dir.";
- p = __stpcpy (buf, "ethers.org_dir.");
- p = __stpcpy (p, nis_local_directory ());
- tablename_val = __strdup (buf);
+ char *p = malloc (sizeof (prefix) + local_dir_len);
if (tablename_val == NULL)
{
*errnop = errno;
return NSS_STATUS_TRYAGAIN;
}
- tablename_len = strlen (tablename_val);
+
+ 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;
}
@@ -107,9 +122,11 @@ _nss_nisplus_setetherent (int stayopen)
__libc_lock_lock (lock);
- if (result)
- nis_freeresult (result);
- result = NULL;
+ if (result != NULL)
+ {
+ nis_freeresult (result);
+ result = NULL;
+ }
if (_nss_create_tablename (&err) != NSS_STATUS_SUCCESS)
status = NSS_STATUS_UNAVAIL;
@@ -124,9 +141,11 @@ _nss_nisplus_endetherent (void)
{
__libc_lock_lock (lock);
- if (result)
- nis_freeresult (result);
- result = NULL;
+ if (result != NULL)
+ {
+ nis_freeresult (result);
+ result = NULL;
+ }
__libc_lock_unlock (lock);
@@ -178,7 +197,6 @@ internal_nisplus_getetherent_r (struct etherent *ether, char *buffer,
if (parse_res == -1)
{
nis_freeresult (result);
- *errnop = ERANGE;
result = saved_result;
return NSS_STATUS_TRYAGAIN;
}
@@ -258,7 +276,6 @@ _nss_nisplus_gethostton_r (const char *name, struct etherent *eth,
if (parse_res == -1)
{
nis_freeresult (result);
- *errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
else
@@ -275,8 +292,12 @@ _nss_nisplus_getntohost_r (const struct ether_addr *addr,
{
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;
}
@@ -286,44 +307,45 @@ _nss_nisplus_getntohost_r (const struct ether_addr *addr,
*errnop = EINVAL;
return NSS_STATUS_UNAVAIL;
}
- else
- {
- int parse_res;
- nis_result *result;
- char buf[255 + tablename_len];
- sprintf (buf, "[addr=%x:%x:%x:%x:%x:%x],ethers.org_dir",
- addr->ether_addr_octet[0], addr->ether_addr_octet[1],
- addr->ether_addr_octet[2], addr->ether_addr_octet[3],
- addr->ether_addr_octet[4], addr->ether_addr_octet[5]);
+ int parse_res;
+ char buf[26 + tablename_len];
- result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
+ snprintf (buf, sizeof (buf),
+ "[addr=%" PRIx8 ":%" PRIx8 ":%" PRIx8 ":%" PRIx8 ":%" PRIx8
+ ":%" PRIx8 "],%s",
+ addr->ether_addr_octet[0], addr->ether_addr_octet[1],
+ addr->ether_addr_octet[2], addr->ether_addr_octet[3],
+ addr->ether_addr_octet[4], addr->ether_addr_octet[5],
+ tablename_val);
- if (result == NULL)
- {
- *errnop = ENOMEM;
- return NSS_STATUS_TRYAGAIN;
- }
- if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
+ nis_result *result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
+
+ if (result == NULL)
+ {
+ *errnop = ENOMEM;
+ return NSS_STATUS_TRYAGAIN;
+ }
+
+ if (__builtin_expect (niserr2nss (result->status) != NSS_STATUS_SUCCESS, 0))
+ {
+ enum nss_status status = niserr2nss (result->status);
+ nis_freeresult (result);
+ return status;
+ }
+
+ parse_res = _nss_nisplus_parse_etherent (result, eth, buffer,
+ buflen, errnop);
+ if (__builtin_expect (parse_res < 1, 0))
+ {
+ if (parse_res == -1)
{
- enum nss_status status = niserr2nss (result->status);
nis_freeresult (result);
- return status;
+ return NSS_STATUS_TRYAGAIN;
}
- parse_res = _nss_nisplus_parse_etherent (result, eth, buffer,
- buflen, errnop);
- if (parse_res < 1)
- {
- if (parse_res == -1)
- {
- nis_freeresult (result);
- *errnop = ERANGE;
- return NSS_STATUS_TRYAGAIN;
- }
- else
- return NSS_STATUS_NOTFOUND;
- }
- return NSS_STATUS_SUCCESS;
+ return NSS_STATUS_NOTFOUND;
}
+
+ return NSS_STATUS_SUCCESS;
}
diff --git a/nis/nss_nisplus/nisplus-hosts.c b/nis/nss_nisplus/nisplus-hosts.c
index 540469894e..81f8a984dc 100644
--- a/nis/nss_nisplus/nisplus-hosts.c
+++ b/nis/nss_nisplus/nisplus-hosts.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997-2002, 2003 Free Software Foundation, Inc.
+/* Copyright (C) 1997-2002, 2003, 2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Thorsten Kukuk <kukuk@suse.de>, 1997.
@@ -17,15 +17,16 @@
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
-#include <nss.h>
-#include <netdb.h>
-#include <errno.h>
+#include <atomic.h>
#include <ctype.h>
+#include <errno.h>
+#include <netdb.h>
+#include <nss.h>
#include <string.h>
-#include <netinet/in.h>
#include <arpa/inet.h>
-#include <bits/libc-lock.h>
+#include <netinet/in.h>
#include <rpcsvc/nis.h>
+#include <bits/libc-lock.h>
#include "nss-nisplus.h"
@@ -180,19 +181,26 @@ _nss_create_tablename (int *errnop)
{
if (tablename_val == NULL)
{
- char buf [40 + strlen (nis_local_directory ())];
- char *p;
+ const char *local_dir = nis_local_directory ();
+ size_t local_dir_len = strlen (local_dir);
+ static const char prefix[] = "hosts.org_dir.";
- p = __stpcpy (buf, "hosts.org_dir.");
- p = __stpcpy (p, nis_local_directory ());
- tablename_val = __strdup (buf);
+ char *p = malloc (sizeof (prefix) + local_dir_len);
if (tablename_val == NULL)
{
*errnop = errno;
return NSS_STATUS_TRYAGAIN;
}
- tablename_len = strlen (tablename_val);
+
+ 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;
}
@@ -204,9 +212,11 @@ _nss_nisplus_sethostent (int stayopen)
__libc_lock_lock (lock);
- if (result)
- nis_freeresult (result);
- result = NULL;
+ if (result != NULL)
+ {
+ nis_freeresult (result);
+ result = NULL;
+ }
if (tablename_val == NULL)
status = _nss_create_tablename (&err);
@@ -221,9 +231,11 @@ _nss_nisplus_endhostent (void)
{
__libc_lock_lock (lock);
- if (result)
- nis_freeresult (result);
- result = NULL;
+ if (result != NULL)
+ {
+ nis_freeresult (result);
+ result = NULL;
+ }
__libc_lock_unlock (lock);
@@ -335,8 +347,12 @@ internal_gethostbyname2_r (const char *name, int af, struct hostent *host,
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)
{
*herrnop = NETDB_INTERNAL;
@@ -350,75 +366,81 @@ internal_gethostbyname2_r (const char *name, int af, struct hostent *host,
*herrnop = NETDB_INTERNAL;
return NSS_STATUS_NOTFOUND;
}
- else
- {
- nis_result *result;
- char buf[strlen (name) + 255 + tablename_len];
- int olderr = errno;
- /* Search at first in the alias list, and use the correct name
- for the next search */
- sprintf (buf, "[name=%s],%s", name, tablename_val);
- result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
+ nis_result *result;
+ char buf[strlen (name) + 10 + tablename_len];
+ int olderr = errno;
- if (result != NULL)
- {
- /* If we do not find it, try it as original name. But if the
- database is correct, we should find it in the first case, too */
- if ((result->status != NIS_SUCCESS
- && result->status != NIS_S_SUCCESS)
- || __type_of (result->objects.objects_val) != NIS_ENTRY_OBJ
- || strcmp (result->objects.objects_val->EN_data.en_type,
- "hosts_tbl") != 0
- || result->objects.objects_val->EN_data.en_cols.en_cols_len < 3)
- sprintf (buf, "[cname=%s],%s", name, tablename_val);
- else
- sprintf (buf, "[cname=%s],%s", NISENTRYVAL(0, 0, result),
- tablename_val);
-
- nis_freeresult (result);
- result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
- }
+ /* 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_PATH | FOLLOW_LINKS, NULL, NULL);
- if (result == NULL)
+ if (result != NULL)
+ {
+ char *bufptr = buf;
+
+ /* If we did not find it, try it as original name. But if the
+ database is correct, we should find it in the first case, too. */
+ if ((result->status != NIS_SUCCESS
+ && result->status != NIS_S_SUCCESS)
+ || __type_of (result->objects.objects_val) != NIS_ENTRY_OBJ
+ || strcmp (result->objects.objects_val->EN_data.en_type,
+ "hosts_tbl") != 0
+ || result->objects.objects_val->EN_data.en_cols.en_cols_len < 3)
+ snprintf (buf, sizeof (buf), "[cname=%s],%s", name, tablename_val);
+ else
{
- *errnop = ENOMEM;
- return NSS_STATUS_TRYAGAIN;
+ /* We need to allocate a new buffer since there is no
+ guarantee the returned name has a length limit. */
+ const char *entryval = NISENTRYVAL(0, 0, result);
+ size_t buflen = strlen (entryval) + 10 + tablename_len;
+ bufptr = alloca (buflen);
+ snprintf (bufptr, buflen, "[cname=%s],%s",
+ entryval, tablename_val);
}
- retval = niserr2nss (result->status);
- if (retval != NSS_STATUS_SUCCESS)
- {
- if (retval == NSS_STATUS_TRYAGAIN)
- {
- *errnop = errno;
- *herrnop = NETDB_INTERNAL;
- }
- else
- __set_errno (olderr);
- nis_freeresult (result);
- return retval;
- }
-
- parse_res = _nss_nisplus_parse_hostent (result, af, host, buffer,
- buflen, errnop, flags);
nis_freeresult (result);
+ result = nis_list (bufptr, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
+ }
- if (parse_res > 0)
- return NSS_STATUS_SUCCESS;
+ if (result == NULL)
+ {
+ *errnop = ENOMEM;
+ return NSS_STATUS_TRYAGAIN;
+ }
- *herrnop = NETDB_INTERNAL;
- if (parse_res == -1)
+ retval = niserr2nss (result->status);
+ if (__builtin_expect (retval != NSS_STATUS_SUCCESS, 0))
+ {
+ if (retval == NSS_STATUS_TRYAGAIN)
{
- *errnop = ERANGE;
- return NSS_STATUS_TRYAGAIN;
+ *errnop = errno;
+ *herrnop = NETDB_INTERNAL;
}
else
- {
- __set_errno (olderr);
- return NSS_STATUS_NOTFOUND;
- }
+ __set_errno (olderr);
+ nis_freeresult (result);
+ return retval;
}
+
+ parse_res = _nss_nisplus_parse_hostent (result, af, host, buffer,
+ buflen, errnop, flags);
+
+ nis_freeresult (result);
+
+ if (parse_res > 0)
+ return NSS_STATUS_SUCCESS;
+
+ *herrnop = NETDB_INTERNAL;
+ if (parse_res == -1)
+ {
+ *errnop = ERANGE;
+ return NSS_STATUS_TRYAGAIN;
+ }
+
+ __set_errno (olderr);
+ return NSS_STATUS_NOTFOUND;
}
enum nss_status
@@ -431,17 +453,6 @@ _nss_nisplus_gethostbyname2_r (const char *name, int af, struct hostent *host,
((_res.options & RES_USE_INET6) ? AI_V4MAPPED : 0));
}
-#if 0
-enum nss_status
-_nss_nisplus_getipnodebyname_r (const char *name, int af, int flags,
- struct hostent *result, char *buffer,
- size_t buflen, int *errnop, int *herrnop)
-{
- return internal_gethostbyname2_r (name, af, result, buffer, buflen,
- errnop, herrnop, flags);
-}
-#endif
-
enum nss_status
_nss_nisplus_gethostbyname_r (const char *name, struct hostent *host,
char *buffer, size_t buflen, int *errnop,
@@ -469,62 +480,63 @@ _nss_nisplus_gethostbyaddr_r (const void *addr, socklen_t addrlen, int af,
{
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 (addr == NULL)
return NSS_STATUS_NOTFOUND;
- else
- {
- nis_result *result;
- char buf[255 + tablename_len];
- int retval, parse_res;
- int olderr = errno;
- sprintf (buf, "[addr=%s],%s",
- inet_ntoa (*(const struct in_addr *) addr), tablename_val);
- result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
-
- if (result == NULL)
- {
- __set_errno (ENOMEM);
- return NSS_STATUS_TRYAGAIN;
- }
- retval = niserr2nss (result->status);
- if (retval != NSS_STATUS_SUCCESS)
- {
- if (retval == NSS_STATUS_TRYAGAIN)
- {
- *errnop = errno;
- *herrnop = NETDB_INTERNAL;
- }
- else
- __set_errno (olderr);
- nis_freeresult (result);
- return retval;
- }
+ char buf[24 + tablename_len];
+ int retval, parse_res;
+ int olderr = errno;
- parse_res = _nss_nisplus_parse_hostent (result, af, host,
- buffer, buflen, errnop,
- ((_res.options & RES_USE_INET6) ? AI_V4MAPPED : 0));
- nis_freeresult (result);
+ snprintf (buf, sizeof (buf), "[addr=%s],%s",
+ inet_ntoa (*(const struct in_addr *) addr), tablename_val);
+ nis_result *result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
- if (parse_res > 0)
- return NSS_STATUS_SUCCESS;
+ if (result == NULL)
+ {
+ __set_errno (ENOMEM);
+ return NSS_STATUS_TRYAGAIN;
+ }
- *herrnop = NETDB_INTERNAL;
- if (parse_res == -1)
+ retval = niserr2nss (result->status);
+ if (__builtin_expect (retval != NSS_STATUS_SUCCESS, 0))
+ {
+ if (retval == NSS_STATUS_TRYAGAIN)
{
- *errnop = ERANGE;
- return NSS_STATUS_TRYAGAIN;
+ *errnop = errno;
+ *herrnop = NETDB_INTERNAL;
}
else
- {
- __set_errno (olderr);
- return NSS_STATUS_NOTFOUND;
- }
+ __set_errno (olderr);
+ nis_freeresult (result);
+ return retval;
+ }
+
+ parse_res = _nss_nisplus_parse_hostent (result, af, host,
+ buffer, buflen, errnop,
+ ((_res.options & RES_USE_INET6)
+ ? AI_V4MAPPED : 0));
+ nis_freeresult (result);
+
+ if (parse_res > 0)
+ return NSS_STATUS_SUCCESS;
+
+ *herrnop = NETDB_INTERNAL;
+ if (parse_res == -1)
+ {
+ *errnop = ERANGE;
+ return NSS_STATUS_TRYAGAIN;
}
+
+ __set_errno (olderr);
+ return NSS_STATUS_NOTFOUND;
}
diff --git a/nis/nss_nisplus/nisplus-network.c b/nis/nss_nisplus/nisplus-network.c
index 422b02b82a..1cd7cf2588 100644
--- a/nis/nss_nisplus/nisplus-network.c
+++ b/nis/nss_nisplus/nisplus-network.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997,1998,2000,2001,2002,2003 Free Software Foundation, Inc.
+/* Copyright (C) 1997,1998,2000-2003,2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997.
@@ -17,15 +17,16 @@
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
-#include <nss.h>
-#include <netdb.h>
-#include <errno.h>
+#include <atomic.h>
#include <ctype.h>
+#include <errno.h>
+#include <netdb.h>
+#include <nss.h>
#include <stdint.h>
#include <string.h>
#include <arpa/inet.h>
-#include <bits/libc-lock.h>
#include <rpcsvc/nis.h>
+#include <bits/libc-lock.h>
#include "nss-nisplus.h"
@@ -44,12 +45,10 @@ static u_long tablename_len;
static int
_nss_nisplus_parse_netent (nis_result *result, struct netent *network,
- char *buffer, size_t buflen, int *errnop)
+ char *buffer, size_t buflen, int *errnop)
{
char *first_unused = buffer;
size_t room_left = buflen;
- unsigned int i;
- char *p, *line;
if (result == NULL)
return 0;
@@ -61,7 +60,7 @@ _nss_nisplus_parse_netent (nis_result *result, struct netent *network,
|| result->objects.objects_val[0].EN_data.en_cols.en_cols_len < 3)
return 0;
- if (NISENTRYLEN(0, 0, result) >= room_left)
+ if (NISENTRYLEN (0, 0, result) >= room_left)
{
/* The line is too long for our buffer. */
no_more_room:
@@ -69,7 +68,7 @@ _nss_nisplus_parse_netent (nis_result *result, struct netent *network,
return -1;
}
- strncpy (first_unused, NISENTRYVAL(0, 0, result),
+ strncpy (first_unused, NISENTRYVAL (0, 0, result),
NISENTRYLEN (0, 0, result));
first_unused[NISENTRYLEN (0, 0, result)] = '\0';
network->n_name = first_unused;
@@ -77,10 +76,10 @@ _nss_nisplus_parse_netent (nis_result *result, struct netent *network,
first_unused += strlen (first_unused) +1;
network->n_addrtype = 0;
network->n_net = inet_network (NISENTRYVAL (0, 2, result));
- p = first_unused;
+ char *p = first_unused;
- line = p;
- for (i = 0; i < result->objects.objects_len; ++i)
+ char *line = p;
+ for (unsigned int i = 0; i < result->objects.objects_len; ++i)
{
if (strcmp (NISENTRYVAL (i, 1, result), network->n_name) != 0)
{
@@ -107,12 +106,12 @@ _nss_nisplus_parse_netent (nis_result *result, struct netent *network,
room_left -= (2 * sizeof (char *));
network->n_aliases[0] = NULL;
- i = 0;
+ unsigned int i = 0;
while (*line != '\0')
{
/* Skip leading blanks. */
while (isspace (*line))
- line++;
+ ++line;
if (*line == '\0')
break;
@@ -133,7 +132,7 @@ _nss_nisplus_parse_netent (nis_result *result, struct netent *network,
++i;
}
else
- network->n_aliases[i+1] = NULL;
+ network->n_aliases[i + 1] = NULL;
}
return 1;
@@ -144,19 +143,26 @@ _nss_create_tablename (int *errnop)
{
if (tablename_val == NULL)
{
- char buf [40 + strlen (nis_local_directory ())];
- char *p;
+ const char *local_dir = nis_local_directory ();
+ size_t local_dir_len = strlen (local_dir);
+ static const char prefix[] = "networks.org_dir.";
- p = __stpcpy (buf, "networks.org_dir.");
- p = __stpcpy (p, nis_local_directory ());
- tablename_val = __strdup (buf);
+ char *p = malloc (sizeof (prefix) + local_dir_len);
if (tablename_val == NULL)
{
*errnop = errno;
return NSS_STATUS_TRYAGAIN;
}
- tablename_len = strlen (tablename_val);
+
+ 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;
}
@@ -164,16 +170,20 @@ enum nss_status
_nss_nisplus_setnetent (int stayopen)
{
enum nss_status status = NSS_STATUS_SUCCESS;
- int err;
__libc_lock_lock (lock);
- if (result)
- nis_freeresult (result);
- result = NULL;
+ if (result != NULL)
+ {
+ nis_freeresult (result);
+ result = NULL;
+ }
if (tablename_val == NULL)
- status = _nss_create_tablename (&err);
+ {
+ int err;
+ status = _nss_create_tablename (&err);
+ }
__libc_lock_unlock (lock);
@@ -185,9 +195,11 @@ _nss_nisplus_endnetent (void)
{
__libc_lock_lock (lock);
- if (result)
- nis_freeresult (result);
- result = NULL;
+ if (result != NULL)
+ {
+ nis_freeresult (result);
+ result = NULL;
+ }
__libc_lock_unlock (lock);
@@ -220,9 +232,7 @@ internal_nisplus_getnetent_r (struct netent *network, char *buffer,
result = nis_first_entry (tablename_val);
if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
{
- int retval;
-
- retval = niserr2nss (result->status);
+ int retval = niserr2nss (result->status);
nis_freeresult (result);
result = NULL;
if (retval == NSS_STATUS_TRYAGAIN)
@@ -237,16 +247,12 @@ internal_nisplus_getnetent_r (struct netent *network, char *buffer,
}
else
{
- nis_result *res;
-
- res = nis_next_entry (tablename_val, &result->cookie);
+ nis_result *res = nis_next_entry (tablename_val, &result->cookie);
saved_res = result;
result = res;
if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
{
- int retval;
-
- retval = niserr2nss (result->status);
+ int retval = niserr2nss (result->status);
nis_freeresult (result);
result = saved_res;
if (retval == NSS_STATUS_TRYAGAIN)
@@ -266,7 +272,8 @@ internal_nisplus_getnetent_r (struct netent *network, char *buffer,
return NSS_STATUS_TRYAGAIN;
}
- } while (!parse_res);
+ }
+ while (!parse_res);
return NSS_STATUS_SUCCESS;
}
@@ -296,8 +303,12 @@ _nss_nisplus_getnetbyname_r (const char *name, struct netent *network,
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;
}
@@ -308,76 +319,82 @@ _nss_nisplus_getnetbyname_r (const char *name, struct netent *network,
*herrnop = NETDB_INTERNAL;
return NSS_STATUS_UNAVAIL;
}
- else
- {
- nis_result *result;
- char buf[strlen (name) + 255 + tablename_len];
- int olderr = errno;
- /* Search at first in the alias list, and use the correct name
- for the next search */
- sprintf (buf, "[name=%s],%s", name, tablename_val);
- result = nis_list (buf, FOLLOW_LINKS | FOLLOW_PATH, NULL, NULL);
+ nis_result *result;
+ char buf[strlen (name) + 10 + tablename_len];
+ int olderr = errno;
- if (result != NULL)
- {
- /* If we do not find it, try it as original name. But if the
- database is correct, we should find it in the first case, too */
- 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,
- "networks_tbl") != 0
- || (result->objects.objects_val[0].EN_data.en_cols.en_cols_len
- < 3))
- sprintf (buf, "[cname=%s],%s", name, tablename_val);
- else
- sprintf (buf, "[cname=%s],%s", NISENTRYVAL (0, 0, result),
- tablename_val);
-
- nis_freeresult (result);
- result = nis_list (buf, FOLLOW_LINKS | FOLLOW_PATH, NULL, NULL);
- }
+ /* 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);
- if (result == NULL)
- {
- __set_errno (ENOMEM);
- return NSS_STATUS_TRYAGAIN;
- }
- retval = niserr2nss (result->status);
- if (retval != NSS_STATUS_SUCCESS)
+ if (result != NULL)
+ {
+ char *bufptr = buf;
+
+ /* If we do not find it, try it as original name. But if the
+ database is correct, we should find it in the first case, too */
+ 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,
+ "networks_tbl") != 0
+ || (result->objects.objects_val[0].EN_data.en_cols.en_cols_len
+ < 3))
+ snprintf (buf, sizeof (buf), "[cname=%s],%s", name, tablename_val);
+ else
{
- if (retval == NSS_STATUS_TRYAGAIN)
- {
- *errnop = errno;
- *herrnop = NETDB_INTERNAL;
- }
- else
- __set_errno (olderr);
- nis_freeresult (result);
- return retval;
+ /* We need to allocate a new buffer since there is no
+ guarantee the returned name has a length limit. */
+ const char *entryval = NISENTRYVAL (0, 0, result);
+ size_t buflen = strlen (entryval) + 10 + tablename_len;
+ bufptr = alloca (buflen);
+ snprintf (bufptr, buflen, "[cname=%s],%s",
+ entryval, tablename_val);
}
- parse_res = _nss_nisplus_parse_netent (result, network, buffer, buflen,
- errnop);
-
nis_freeresult (result);
+ result = nis_list (bufptr, FOLLOW_LINKS | FOLLOW_PATH, NULL, NULL);
+ }
- if (parse_res > 0)
- return NSS_STATUS_SUCCESS;
+ if (result == NULL)
+ {
+ __set_errno (ENOMEM);
+ return NSS_STATUS_TRYAGAIN;
+ }
- *herrnop = NETDB_INTERNAL;
- if (parse_res == -1)
+ retval = niserr2nss (result->status);
+ if (__builtin_expect (retval != NSS_STATUS_SUCCESS, 0))
+ {
+ if (retval == NSS_STATUS_TRYAGAIN)
{
- *errnop = ERANGE;
- return NSS_STATUS_TRYAGAIN;
+ *errnop = errno;
+ *herrnop = NETDB_INTERNAL;
}
else
- {
- __set_errno (olderr);
- return NSS_STATUS_NOTFOUND;
- }
+ __set_errno (olderr);
+ nis_freeresult (result);
+ return retval;
}
+
+ parse_res = _nss_nisplus_parse_netent (result, network, buffer, buflen,
+ errnop);
+
+ nis_freeresult (result);
+
+ if (parse_res > 0)
+ return NSS_STATUS_SUCCESS;
+
+ *herrnop = NETDB_INTERNAL;
+ if (parse_res == -1)
+ {
+ *errnop = ERANGE;
+ return NSS_STATUS_TRYAGAIN;
+ }
+
+ __set_errno (olderr);
+ return NSS_STATUS_NOTFOUND;
}
/* XXX type is ignored, SUN's NIS+ table doesn't support it */
@@ -388,8 +405,12 @@ _nss_nisplus_getnetbyaddr_r (uint32_t addr, const int type,
{
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;
}
diff --git a/nis/nss_nisplus/nisplus-proto.c b/nis/nss_nisplus/nisplus-proto.c
index 83456cae64..585a4844ad 100644
--- a/nis/nss_nisplus/nisplus-proto.c
+++ b/nis/nss_nisplus/nisplus-proto.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997, 1998, 2001, 2002, 2003 Free Software Foundation, Inc.
+/* Copyright (C) 1997,1998,2001,2002,2003,2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997.
@@ -17,13 +17,14 @@
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
-#include <nss.h>
-#include <errno.h>
+#include <atomic.h>
#include <ctype.h>
+#include <errno.h>
#include <netdb.h>
+#include <nss.h>
#include <string.h>
-#include <bits/libc-lock.h>
#include <rpcsvc/nis.h>
+#include <bits/libc-lock.h>
#include "nss-nisplus.h"
@@ -141,19 +142,26 @@ _nss_create_tablename (int *errnop)
{
if (tablename_val == NULL)
{
- char buf [40 + strlen (nis_local_directory ())];
- char *p;
+ const char *local_dir = nis_local_directory ();
+ size_t local_dir_len = strlen (local_dir);
+ static const char prefix[] = "protocols.org_dir.";
- p = __stpcpy (buf, "protocols.org_dir.");
- p = __stpcpy (p, nis_local_directory ());
- tablename_val = __strdup (buf);
+ char *p = malloc (sizeof (prefix) + local_dir_len);
if (tablename_val == NULL)
{
*errnop = errno;
return NSS_STATUS_TRYAGAIN;
}
- tablename_len = strlen (tablename_val);
+
+ 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;
}
@@ -164,9 +172,11 @@ _nss_nisplus_setprotoent (int stayopen)
__libc_lock_lock (lock);
- if (result)
- nis_freeresult (result);
- result = NULL;
+ if (result != NULL)
+ {
+ nis_freeresult (result);
+ result = NULL;
+ }
if (tablename_val == NULL)
{
@@ -184,9 +194,11 @@ _nss_nisplus_endprotoent (void)
{
__libc_lock_lock (lock);
- if (result)
- nis_freeresult (result);
- result = NULL;
+ if (result != NULL)
+ {
+ nis_freeresult (result);
+ result = NULL;
+ }
__libc_lock_unlock (lock);
@@ -221,11 +233,8 @@ internal_nisplus_getprotoent_r (struct protoent *proto, char *buffer,
}
else
{
- nis_result *res;
-
saved_res = result;
- res = nis_next_entry (tablename_val, &result->cookie);
- result = res;
+ result = nis_next_entry (tablename_val, &result->cookie);
if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
{
@@ -277,79 +286,91 @@ _nss_nisplus_getprotobyname_r (const char *name, struct protoent *proto,
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)
return NSS_STATUS_NOTFOUND;
- else
- {
- nis_result *result;
- char buf[strlen (name) + 255 + tablename_len];
- int olderr = errno;
-
- /* Search at first in the alias list, and use the correct name
- for the next search */
- sprintf (buf, "[name=%s],%s", name, tablename_val);
- result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
- if (result != NULL)
- {
- /* If we do not find it, try it as original name. But if the
- database is correct, we should find it in the first case, too */
- if ((result->status != NIS_SUCCESS
- && result->status != NIS_S_SUCCESS)
- || __type_of (result->objects.objects_val) != NIS_ENTRY_OBJ
- || strcmp (result->objects.objects_val->EN_data.en_type,
- "protocols_tbl") != 0
- || result->objects.objects_val->EN_data.en_cols.en_cols_len < 3)
- sprintf (buf, "[cname=%s],%s", name, tablename_val);
- else
- sprintf (buf, "[cname=%s],%s", NISENTRYVAL (0, 0, result),
- tablename_val);
+ char buf[strlen (name) + 10 + tablename_len];
+ int olderr = errno;
- nis_freeresult (result);
- result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
- }
+ /* 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);
+ nis_result *result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
- if (result == NULL)
+ if (result != NULL)
+ {
+ char *bufptr = buf;
+
+ /* If we did not find it, try it as original name. But if the
+ database is correct, we should find it in the first case, too */
+ if ((result->status != NIS_SUCCESS
+ && result->status != NIS_S_SUCCESS)
+ || __type_of (result->objects.objects_val) != NIS_ENTRY_OBJ
+ || strcmp (result->objects.objects_val->EN_data.en_type,
+ "protocols_tbl") != 0
+ || result->objects.objects_val->EN_data.en_cols.en_cols_len < 3)
+ snprintf (buf, sizeof (buf), "[cname=%s],%s", name, tablename_val);
+ else
{
- __set_errno (ENOMEM);
- return NSS_STATUS_TRYAGAIN;
+ /* We need to allocate a new buffer since there is no
+ guarantee the returned name has a length limit. */
+ const char *entryval = NISENTRYVAL (0, 0, result);
+ size_t buflen = strlen (entryval) + 10 + tablename_len;
+ bufptr = alloca (buflen);
+ snprintf (bufptr, buflen, "[cname=%s],%s",
+ entryval, tablename_val);
}
- if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
- {
- enum nss_status status = niserr2nss (result->status);
- __set_errno (olderr);
+ nis_freeresult (result);
+ result = nis_list (bufptr, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
+ }
- nis_freeresult (result);
- return status;
- }
+ if (result == NULL)
+ {
+ __set_errno (ENOMEM);
+ return NSS_STATUS_TRYAGAIN;
+ }
- parse_res = _nss_nisplus_parse_protoent (result, proto, buffer, buflen,
- errnop);
+ if (__builtin_expect (niserr2nss (result->status) != NSS_STATUS_SUCCESS, 0))
+ {
+ enum nss_status status = niserr2nss (result->status);
+
+ __set_errno (olderr);
nis_freeresult (result);
+ return status;
+ }
- if (parse_res < 1)
+ parse_res = _nss_nisplus_parse_protoent (result, proto, buffer, buflen,
+ errnop);
+
+ nis_freeresult (result);
+
+ if (parse_res < 1)
+ {
+ if (parse_res == -1)
{
- if (parse_res == -1)
- {
- *errnop = ERANGE;
- return NSS_STATUS_TRYAGAIN;
- }
- else
- {
- __set_errno (olderr);
- return NSS_STATUS_NOTFOUND;
- }
+ *errnop = ERANGE;
+ return NSS_STATUS_TRYAGAIN;
+ }
+ else
+ {
+ __set_errno (olderr);
+ return NSS_STATUS_NOTFOUND;
}
- return NSS_STATUS_SUCCESS;
}
+
+ return NSS_STATUS_SUCCESS;
}
enum nss_status
@@ -358,55 +379,57 @@ _nss_nisplus_getprotobynumber_r (const int number, struct protoent *proto,
{
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;
}
- {
- int parse_res;
- nis_result *result;
- char buf[46 + tablename_len];
- int olderr = errno;
+ char buf[12 + 3 * sizeof (number) + tablename_len];
+ int olderr = errno;
- sprintf (buf, "[number=%d],%s", number, tablename_val);
+ snprintf (buf, sizeof (buf), "[number=%d],%s", number, tablename_val);
- result = nis_list (buf, FOLLOW_LINKS | FOLLOW_PATH, NULL, NULL);
+ nis_result *result = nis_list (buf, FOLLOW_LINKS | FOLLOW_PATH, NULL, NULL);
- if (result == NULL)
- {
- __set_errno (ENOMEM);
- return NSS_STATUS_TRYAGAIN;
- }
- if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
- {
- enum nss_status status = niserr2nss (result->status);
+ if (result == NULL)
+ {
+ __set_errno (ENOMEM);
+ return NSS_STATUS_TRYAGAIN;
+ }
- __set_errno (olderr);
+ if (__builtin_expect (niserr2nss (result->status) != NSS_STATUS_SUCCESS, 0))
+ {
+ enum nss_status status = niserr2nss (result->status);
- nis_freeresult (result);
- return status;
- }
-
- parse_res = _nss_nisplus_parse_protoent (result, proto, buffer, buflen,
- errnop);
-
- nis_freeresult (result);
-
- if (parse_res < 1)
- {
- if (parse_res == -1)
- {
- *errnop = ERANGE;
- return NSS_STATUS_TRYAGAIN;
- }
- else
- {
- __set_errno (olderr);
- return NSS_STATUS_NOTFOUND;
- }
- }
- return NSS_STATUS_SUCCESS;
- }
+ __set_errno (olderr);
+
+ nis_freeresult (result);
+ return status;
+ }
+
+ int parse_res = _nss_nisplus_parse_protoent (result, proto, buffer, buflen,
+ errnop);
+
+ nis_freeresult (result);
+
+ if (parse_res < 1)
+ {
+ if (parse_res == -1)
+ {
+ *errnop = ERANGE;
+ return NSS_STATUS_TRYAGAIN;
+ }
+ else
+ {
+ __set_errno (olderr);
+ return NSS_STATUS_NOTFOUND;
+ }
+ }
+
+ return NSS_STATUS_SUCCESS;
}
diff --git a/nis/nss_nisplus/nisplus-rpc.c b/nis/nss_nisplus/nisplus-rpc.c
index 31d48d17a3..98baa5f7fc 100644
--- a/nis/nss_nisplus/nisplus-rpc.c
+++ b/nis/nss_nisplus/nisplus-rpc.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997, 1998, 2001, 2002, 2003 Free Software Foundation, Inc.
+/* Copyright (C) 1997,1998,2001,2002,2003,2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997.
@@ -17,13 +17,14 @@
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
-#include <nss.h>
-#include <errno.h>
+#include <atomic.h>
#include <ctype.h>
+#include <errno.h>
+#include <nss.h>
#include <string.h>
-#include <bits/libc-lock.h>
#include <rpc/netdb.h>
#include <rpcsvc/nis.h>
+#include <bits/libc-lock.h>
#include "nss-nisplus.h"
@@ -138,19 +139,26 @@ _nss_create_tablename (int *errnop)
{
if (tablename_val == NULL)
{
- char buf [40 + strlen (nis_local_directory ())];
- char *p;
+ const char *local_dir = nis_local_directory ();
+ size_t local_dir_len = strlen (local_dir);
+ static const char prefix[] = "rpc.org_dir.";
- p = __stpcpy (buf, "rpc.org_dir.");
- p = __stpcpy (p, nis_local_directory ());
- tablename_val = __strdup (buf);
+ char *p = malloc (sizeof (prefix) + local_dir_len);
if (tablename_val == NULL)
{
*errnop = errno;
return NSS_STATUS_TRYAGAIN;
}
- tablename_len = strlen (tablename_val);
+
+ 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;
}
@@ -159,16 +167,20 @@ enum nss_status
_nss_nisplus_setrpcent (int stayopen)
{
enum nss_status status = NSS_STATUS_SUCCESS;
- int err;
__libc_lock_lock (lock);
- if (result)
- nis_freeresult (result);
- result = NULL;
+ if (result != NULL)
+ {
+ nis_freeresult (result);
+ result = NULL;
+ }
if (tablename_val == NULL)
- status = _nss_create_tablename (&err);
+ {
+ int err;
+ status = _nss_create_tablename (&err);
+ }
__libc_lock_unlock (lock);
@@ -180,9 +192,11 @@ _nss_nisplus_endrpcent (void)
{
__libc_lock_lock (lock);
- if (result)
- nis_freeresult (result);
- result = NULL;
+ if (result != NULL)
+ {
+ nis_freeresult (result);
+ result = NULL;
+ }
__libc_lock_unlock (lock);
@@ -217,11 +231,8 @@ internal_nisplus_getrpcent_r (struct rpcent *rpc, char *buffer,
}
else
{
- nis_result *res;
-
saved_res = result;
- res = nis_next_entry (tablename_val, &result->cookie);
- result = res;
+ result = nis_next_entry (tablename_val, &result->cookie);
if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
{
nis_freeresult (saved_res);
@@ -243,7 +254,8 @@ internal_nisplus_getrpcent_r (struct rpcent *rpc, char *buffer,
if (saved_res)
nis_freeresult (saved_res);
}
- } while (!parse_res);
+ }
+ while (!parse_res);
return NSS_STATUS_SUCCESS;
}
@@ -271,77 +283,89 @@ _nss_nisplus_getrpcbyname_r (const char *name, struct rpcent *rpc,
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)
return NSS_STATUS_NOTFOUND;
- else
- {
- nis_result *result;
- char buf[strlen (name) + 255 + tablename_len];
- int olderr = errno;
-
- /* Search at first in the alias list, and use the correct name
- for the next search */
- sprintf (buf, "[name=%s],%s", name, tablename_val);
- result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
- if (result != NULL)
- {
- /* If we do not find it, try it as original name. But if the
- database is correct, we should find it in the first case, too */
- if ((result->status != NIS_SUCCESS
- && result->status != NIS_S_SUCCESS)
- || __type_of (result->objects.objects_val) != NIS_ENTRY_OBJ
- || strcmp (result->objects.objects_val->EN_data.en_type,
- "rpc_tbl") != 0
- || result->objects.objects_val->EN_data.en_cols.en_cols_len < 3)
- sprintf (buf, "[cname=%s],%s", name, tablename_val);
- else
- sprintf (buf, "[cname=%s],%s", NISENTRYVAL (0, 0, result),
- tablename_val);
+ char buf[strlen (name) + 10 + tablename_len];
+ int olderr = errno;
- nis_freeresult (result);
- result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS , NULL, NULL);
- }
+ /* 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);
+ nis_result *result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
- if (result == NULL)
+ if (result != NULL)
+ {
+ char *bufptr = buf;
+
+ /* If we did not find it, try it as original name. But if the
+ database is correct, we should find it in the first case, too */
+ if ((result->status != NIS_SUCCESS
+ && result->status != NIS_S_SUCCESS)
+ || __type_of (result->objects.objects_val) != NIS_ENTRY_OBJ
+ || strcmp (result->objects.objects_val->EN_data.en_type,
+ "rpc_tbl") != 0
+ || result->objects.objects_val->EN_data.en_cols.en_cols_len < 3)
+ snprintf (buf, sizeof (buf), "[cname=%s],%s", name, tablename_val);
+ else
{
- *errnop = ENOMEM;
- return NSS_STATUS_TRYAGAIN;
+ /* We need to allocate a new buffer since there is no
+ guarantee the returned name has a length limit. */
+ const char *entryval = NISENTRYVAL (0, 0, result);
+ size_t buflen = strlen (entryval) + 10 + tablename_len;
+ bufptr = alloca (buflen);
+ snprintf (bufptr, buflen, "[cname=%s],%s",
+ entryval, tablename_val);
}
- if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
- {
- enum nss_status status = niserr2nss (result->status);
- __set_errno (olderr);
+ nis_freeresult (result);
+ result = nis_list (bufptr, FOLLOW_PATH | FOLLOW_LINKS , NULL, NULL);
+ }
- nis_freeresult (result);
- return status;
- }
+ if (result == NULL)
+ {
+ *errnop = ENOMEM;
+ return NSS_STATUS_TRYAGAIN;
+ }
- parse_res = _nss_nisplus_parse_rpcent (result, rpc, buffer, buflen,
- errnop);
+ if (__builtin_expect (niserr2nss (result->status) != NSS_STATUS_SUCCESS, 0))
+ {
+ enum nss_status status = niserr2nss (result->status);
+
+ __set_errno (olderr);
nis_freeresult (result);
+ return status;
+ }
- if (parse_res < 1)
- {
- if (parse_res == -1)
- {
- *errnop = ERANGE;
- return NSS_STATUS_TRYAGAIN;
- }
+ parse_res = _nss_nisplus_parse_rpcent (result, rpc, buffer, buflen,
+ errnop);
- __set_errno (olderr);
- return NSS_STATUS_NOTFOUND;
+ nis_freeresult (result);
+
+ if (parse_res < 1)
+ {
+ if (parse_res == -1)
+ {
+ *errnop = ERANGE;
+ return NSS_STATUS_TRYAGAIN;
}
- return NSS_STATUS_SUCCESS;
+
+ __set_errno (olderr);
+ return NSS_STATUS_NOTFOUND;
}
+
+ return NSS_STATUS_SUCCESS;
}
enum nss_status
@@ -350,55 +374,57 @@ _nss_nisplus_getrpcbynumber_r (const int number, struct rpcent *rpc,
{
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;
}
- {
- int parse_res;
- nis_result *result;
- char buf[100 + tablename_len];
- int olderr = errno;
+ char buf[12 + 3 * sizeof (number) + tablename_len];
+ int olderr = errno;
+
+ snprintf (buf, sizeof (buf), "[number=%d],%s", number, tablename_val);
+
+ nis_result *result = nis_list (buf, FOLLOW_LINKS | FOLLOW_PATH, NULL, NULL);
+
+ if (result == NULL)
+ {
+ *errnop = ENOMEM;
+ return NSS_STATUS_TRYAGAIN;
+ }
+
+ if (__builtin_expect (niserr2nss (result->status) != NSS_STATUS_SUCCESS, 0))
+ {
+ enum nss_status status = niserr2nss (result->status);
- sprintf (buf, "[number=%d],%s", number, tablename_val);
+ __set_errno (olderr);
- result = nis_list(buf, FOLLOW_LINKS | FOLLOW_PATH, NULL, NULL);
+ nis_freeresult (result);
+ return status;
+ }
- if (result == NULL)
- {
- *errnop = ENOMEM;
- return NSS_STATUS_TRYAGAIN;
- }
- if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
- {
- enum nss_status status = niserr2nss (result->status);
+ int parse_res = _nss_nisplus_parse_rpcent (result, rpc, buffer, buflen,
+ errnop);
- __set_errno (olderr);
+ nis_freeresult (result);
- nis_freeresult (result);
- return status;
- }
-
- parse_res = _nss_nisplus_parse_rpcent (result, rpc, buffer, buflen,
- errnop);
-
- nis_freeresult (result);
-
- if (parse_res < 1)
- {
- if (parse_res == -1)
- {
- *errnop = ERANGE;
- return NSS_STATUS_TRYAGAIN;
- }
- else
- {
- __set_errno (olderr);
- return NSS_STATUS_NOTFOUND;
- }
- }
- return NSS_STATUS_SUCCESS;
- }
+ if (parse_res < 1)
+ {
+ if (parse_res == -1)
+ {
+ *errnop = ERANGE;
+ return NSS_STATUS_TRYAGAIN;
+ }
+ else
+ {
+ __set_errno (olderr);
+ return NSS_STATUS_NOTFOUND;
+ }
+ }
+
+ return NSS_STATUS_SUCCESS;
}
diff --git a/nis/nss_nisplus/nisplus-service.c b/nis/nss_nisplus/nisplus-service.c
index fbb6987e9e..848e5f4dd8 100644
--- a/nis/nss_nisplus/nisplus-service.c
+++ b/nis/nss_nisplus/nisplus-service.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997,1998,1999,2001,2002,2003 Free Software Foundation, Inc.
+/* Copyright (C) 1997-1999,2001,2002,2003,2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Thorsten Kukuk <kukuk@suse.de>, 1997.
@@ -17,13 +17,14 @@
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
-#include <nss.h>
-#include <errno.h>
+#include <atomic.h>
#include <ctype.h>
+#include <errno.h>
#include <netdb.h>
+#include <nss.h>
#include <string.h>
-#include <bits/libc-lock.h>
#include <rpcsvc/nis.h>
+#include <bits/libc-lock.h>
#include "nss-nisplus.h"
@@ -45,8 +46,6 @@ _nss_nisplus_parse_servent (nis_result *result, struct servent *serv,
{
char *first_unused = buffer;
size_t room_left = buflen;
- unsigned int i;
- char *p, *line;
if (result == NULL)
return 0;
@@ -81,10 +80,10 @@ _nss_nisplus_parse_servent (nis_result *result, struct servent *serv,
first_unused += strlen (first_unused) + 1;
serv->s_port = htons (atoi (NISENTRYVAL (0, 3, result)));
- p = first_unused;
+ char *p = first_unused;
- line = p;
- for (i = 0; i < result->objects.objects_len; ++i)
+ char *line = p;
+ for (unsigned int i = 0; i < result->objects.objects_len; ++i)
{
if (strcmp (NISENTRYVAL (i, 1, result), serv->s_name) != 0)
{
@@ -110,7 +109,7 @@ _nss_nisplus_parse_servent (nis_result *result, struct servent *serv,
room_left -= (sizeof (char *));
serv->s_aliases[0] = NULL;
- i = 0;
+ unsigned int i = 0;
while (*line != '\0')
{
/* Skip leading blanks. */
@@ -147,19 +146,26 @@ _nss_create_tablename (int *errnop)
{
if (tablename_val == NULL)
{
- char buf [40 + strlen (nis_local_directory ())];
- char *p;
+ const char *local_dir = nis_local_directory ();
+ size_t local_dir_len = strlen (local_dir);
+ static const char prefix[] = "services.org_dir.";
- p = __stpcpy (buf, "services.org_dir.");
- p = __stpcpy (p, nis_local_directory ());
- tablename_val = __strdup (buf);
+ char *p = malloc (sizeof (prefix) + local_dir_len);
if (tablename_val == NULL)
{
*errnop = errno;
return NSS_STATUS_TRYAGAIN;
}
- tablename_len = strlen (tablename_val);
+
+ 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;
}
@@ -172,9 +178,11 @@ _nss_nisplus_setservent (int stayopen)
__libc_lock_lock (lock);
- if (result)
- nis_freeresult (result);
- result = NULL;
+ if (result != NULL)
+ {
+ nis_freeresult (result);
+ result = NULL;
+ }
if (tablename_val == NULL)
status = _nss_create_tablename (&err);
@@ -189,9 +197,11 @@ _nss_nisplus_endservent (void)
{
__libc_lock_lock (lock);
- if (result)
- nis_freeresult (result);
- result = NULL;
+ if (result != NULL)
+ {
+ nis_freeresult (result);
+ result = NULL;
+ }
__libc_lock_unlock (lock);
@@ -226,11 +236,8 @@ internal_nisplus_getservent_r (struct servent *serv, char *buffer,
}
else
{
- nis_result *res;
-
saved_res = result;
- res = nis_next_entry (tablename_val, &result->cookie);
- result = res;
+ result = nis_next_entry (tablename_val, &result->cookie);
if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
{
nis_freeresult (saved_res);
@@ -240,7 +247,7 @@ internal_nisplus_getservent_r (struct servent *serv, char *buffer,
parse_res = _nss_nisplus_parse_servent (result, serv, buffer,
buflen, errnop);
- if (parse_res == -1)
+ if (__builtin_expect (parse_res == -1, 0))
{
nis_freeresult (result);
result = saved_res;
@@ -262,11 +269,9 @@ enum nss_status
_nss_nisplus_getservent_r (struct servent *result, char *buffer,
size_t buflen, int *errnop)
{
- int status;
-
__libc_lock_lock (lock);
- status = internal_nisplus_getservent_r (result, buffer, buflen, errnop);
+ int status = internal_nisplus_getservent_r (result, buffer, buflen, errnop);
__libc_lock_unlock (lock);
@@ -278,12 +283,14 @@ _nss_nisplus_getservbyname_r (const char *name, const char *protocol,
struct servent *serv,
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;
}
@@ -293,72 +300,82 @@ _nss_nisplus_getservbyname_r (const char *name, const char *protocol,
*errnop = EINVAL;
return NSS_STATUS_NOTFOUND;
}
- else
- {
- nis_result *result;
- char buf[strlen (name) + 255 + tablename_len];
- int olderr = errno;
- /* Search at first in the alias list, and use the correct name
- for the next search */
- sprintf (buf, "[name=%s,proto=%s],%s", name, protocol,
- tablename_val);
- result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
+ size_t protocol_len = strlen (protocol);
+ char buf[strlen (name) + protocol_len + 17 + tablename_len];
+ int olderr = errno;
- if (result != NULL)
- {
- /* If we do not find it, try it as original name. But if the
- database is correct, we should find it in the first case, too */
- if ((result->status != NIS_SUCCESS
- && result->status != NIS_S_SUCCESS)
- || __type_of (result->objects.objects_val) != NIS_ENTRY_OBJ
- || strcmp (result->objects.objects_val->EN_data.en_type,
- "services_tbl") != 0
- || result->objects.objects_val->EN_data.en_cols.en_cols_len < 4)
- sprintf (buf, "[cname=%s,proto=%s],%s", name, protocol,
- tablename_val);
- else
- sprintf (buf, "[cname=%s,proto=%s],%s",
- NISENTRYVAL (0, 0, result), protocol, tablename_val);
-
- nis_freeresult (result);
- result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
- }
+ /* Search at first in the alias list, and use the correct name
+ for the next search */
+ snprintf (buf, sizeof (buf), "[name=%s,proto=%s],%s", name, protocol,
+ tablename_val);
+ nis_result *result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
- if (result == NULL)
+ if (result != NULL)
+ {
+ char *bufptr = buf;
+
+ /* If we did not find it, try it as original name. But if the
+ database is correct, we should find it in the first case, too */
+ if ((result->status != NIS_SUCCESS
+ && result->status != NIS_S_SUCCESS)
+ || __type_of (result->objects.objects_val) != NIS_ENTRY_OBJ
+ || strcmp (result->objects.objects_val->EN_data.en_type,
+ "services_tbl") != 0
+ || result->objects.objects_val->EN_data.en_cols.en_cols_len < 4)
+ snprintf (buf, sizeof (buf), "[cname=%s,proto=%s],%s", name, protocol,
+ tablename_val);
+ else
{
- *errnop = ENOMEM;
- return NSS_STATUS_TRYAGAIN;
+ /* We need to allocate a new buffer since there is no
+ guarantee the returned name has a length limit. */
+ const char *entryval = NISENTRYVAL(0, 0, result);
+ size_t buflen = (strlen (entryval) + protocol_len + 17
+ + tablename_len);
+ bufptr = alloca (buflen);
+ snprintf (bufptr, buflen, "[cname=%s,proto=%s],%s",
+ entryval, protocol, tablename_val);
}
- if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
- {
- enum nss_status status = niserr2nss (result->status);
- __set_errno (olderr);
+ nis_freeresult (result);
+ result = nis_list (bufptr, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
+ }
- nis_freeresult (result);
- return status;
- }
+ if (result == NULL)
+ {
+ *errnop = ENOMEM;
+ return NSS_STATUS_TRYAGAIN;
+ }
+
+ if (__builtin_expect (niserr2nss (result->status) != NSS_STATUS_SUCCESS, 0))
+ {
+ enum nss_status status = niserr2nss (result->status);
+
+ __set_errno (olderr);
- parse_res = _nss_nisplus_parse_servent (result, serv, buffer, buflen,
- errnop);
nis_freeresult (result);
+ return status;
+ }
+
+ int parse_res = _nss_nisplus_parse_servent (result, serv, buffer, buflen,
+ errnop);
+ nis_freeresult (result);
- if (parse_res < 1)
+ if (__builtin_expect (parse_res < 1, 0))
+ {
+ if (parse_res == -1)
{
- if (parse_res == -1)
- {
- *errnop = ERANGE;
- return NSS_STATUS_TRYAGAIN;
- }
- else
- {
- __set_errno (olderr);
- return NSS_STATUS_NOTFOUND;
- }
+ *errnop = ERANGE;
+ return NSS_STATUS_TRYAGAIN;
+ }
+ else
+ {
+ __set_errno (olderr);
+ return NSS_STATUS_NOTFOUND;
}
- return NSS_STATUS_SUCCESS;
}
+
+ return NSS_STATUS_SUCCESS;
}
enum nss_status
@@ -368,8 +385,12 @@ _nss_nisplus_getservbyport_r (const int number, const char *protocol,
{
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;
}
@@ -379,50 +400,48 @@ _nss_nisplus_getservbyport_r (const int number, const char *protocol,
*errnop = EINVAL;
return NSS_STATUS_NOTFOUND;
}
- else
- {
- int parse_res;
- nis_result *result;
- char buf[60 + strlen (protocol) + tablename_len];
- int olderr = errno;
- sprintf (buf, "[port=%d,proto=%s],%s",
- number, protocol, tablename_val);
+ char buf[17 + 3 * sizeof (int) + strlen (protocol) + tablename_len];
+ int olderr = errno;
- result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
+ snprintf (buf, sizeof (buf), "[port=%d,proto=%s],%s",
+ number, protocol, tablename_val);
- if (result == NULL)
- {
- *errnop = ENOMEM;
- return NSS_STATUS_TRYAGAIN;
- }
- if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
- {
- enum nss_status status = niserr2nss (result->status);
+ nis_result *result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
- __set_errno (olderr);
+ if (result == NULL)
+ {
+ *errnop = ENOMEM;
+ return NSS_STATUS_TRYAGAIN;
+ }
- nis_freeresult (result);
- return status;
- }
+ if (__builtin_expect (niserr2nss (result->status) != NSS_STATUS_SUCCESS, 0))
+ {
+ enum nss_status status = niserr2nss (result->status);
+
+ __set_errno (olderr);
- parse_res = _nss_nisplus_parse_servent (result, serv, buffer, buflen,
- errnop);
nis_freeresult (result);
+ return status;
+ }
+
+ int parse_res = _nss_nisplus_parse_servent (result, serv, buffer, buflen,
+ errnop);
+ nis_freeresult (result);
- if (parse_res < 1)
+ if (__builtin_expect (parse_res < 1, 0))
+ {
+ if (parse_res == -1)
{
- if (parse_res == -1)
- {
- *errnop = ERANGE;
- return NSS_STATUS_TRYAGAIN;
- }
- else
- {
- __set_errno (olderr);
- return NSS_STATUS_NOTFOUND;
- }
+ *errnop = ERANGE;
+ return NSS_STATUS_TRYAGAIN;
+ }
+ else
+ {
+ __set_errno (olderr);
+ return NSS_STATUS_NOTFOUND;
}
- return NSS_STATUS_SUCCESS;
}
+
+ return NSS_STATUS_SUCCESS;
}
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