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2012-04-06 Paul Pluzhnikov <ppluzhnikov@google.com>

Browse Source 
[BZ #13895]
	* nss/nsswitch.c (nss_load_library, __nss_lookup_function): Avoid
	extra indirection.
	* nss/Makefile (tests-static, tests): Add tst-nss-static.
	* nss/tst-nss-static.c: New.
This commit is contained in:
Paul Pluzhnikov 2012-04-06 13:49:35 -07:00
parent f23a86baf7
commit 62470f605e
4 changed files with 34 additions and 9 deletions
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8
ChangeLog
View File

@ -1,3 +1,11 @@
2012-04-06 Paul Pluzhnikov <ppluzhnikov@google.com>
[BZ #13895]
* nss/nsswitch.c (nss_load_library, __nss_lookup_function): Avoid
extra indirection.
* nss/Makefile (tests-static, tests): Add tst-nss-static.
* nss/tst-nss-static.c: New.
2012-04-06 Robert Millan <rmh@gnu.org>
[BZ #6486]

2
nss/Makefile
View File

@ -75,6 +75,8 @@ libnss_db-inhibit-o = $(filter-out .os,$(object-suffixes))
ifeq ($(build-static-nss),yes)
routines += $(libnss_files-routines)
static-only-routines += $(libnss_files-routines)
tests-static = tst-nss-static
tests += $(tests-static)
endif
include ../Rules

18
nss/nsswitch.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 1996-1999,2001-2007,2009,2010,2011
/* Copyright (C) 1996-2012
Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
@ -315,7 +315,7 @@ nss_load_library (service_user *ni)
if (ni->library->lib_handle == NULL)
{
/* Load the shared library. */
size_t shlen = (7 + strlen (ni->library->name) + 3
size_t shlen = (7 + strlen (ni->name) + 3
+ strlen (__nss_shlib_revision) + 1);
int saved_errno = errno;
char shlib_name[shlen];
@ -323,7 +323,7 @@ nss_load_library (service_user *ni)
/* Construct shared object name. */
__stpcpy (__stpcpy (__stpcpy (__stpcpy (shlib_name,
"libnss_"),
ni->library->name),
ni->name),
".so"),
__nss_shlib_revision);
@ -337,14 +337,14 @@ nss_load_library (service_user *ni)
else if (is_nscd)
{
/* Call the init function when nscd is used. */
size_t initlen = (5 + strlen (ni->library->name)
size_t initlen = (5 + strlen (ni->name)
+ strlen ("_init") + 1);
char init_name[initlen];
/* Construct the init function name. */
__stpcpy (__stpcpy (__stpcpy (init_name,
"_nss_"),
ni->library->name),
ni->name),
"_init");
/* Find the optional init function. */
@ -428,13 +428,13 @@ __nss_lookup_function (service_user *ni, const char *fct_name)
else
{
/* Get the desired function. */
size_t namlen = (5 + strlen (ni->library->name) + 1
size_t namlen = (5 + strlen (ni->name) + 1
+ strlen (fct_name) + 1);
char name[namlen];
/* Construct the function name. */
__stpcpy (__stpcpy (__stpcpy (__stpcpy (name, "_nss_"),
ni->library->name),
ni->name),
"_"),
fct_name);
@ -457,12 +457,12 @@ __nss_lookup_function (service_user *ni, const char *fct_name)
# include "function.def"
{ NULL, NULL }
};
size_t namlen = (5 + strlen (ni->library->name) + 1
size_t namlen = (5 + strlen (ni->name) + 1
+ strlen (fct_name) + 1);
char name[namlen];
/* Construct the function name. */
__stpcpy (__stpcpy (__stpcpy (name, ni->library->name),
__stpcpy (__stpcpy (__stpcpy (name, ni->name),
"_"),
fct_name);

15
nss/tst-nss-static.c Normal file
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@ -0,0 +1,15 @@
/* glibc test for static NSS. */
#include <stdio.h>
#define TEST_FUNCTION do_test ()
static int
do_test (void)
{
struct passwd *pw;
pw = getpwuid(0);
return pw == NULL;
}
#include "../test-skeleton.c"