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Fix handling of initgroups database.

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This commit is contained in:
Ulrich Drepper 2011-06-15 20:53:22 -04:00
parent a9e836b040
commit c41af17eed
3 changed files with 19 additions and 8 deletions
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5
ChangeLog
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@ -1,5 +1,10 @@
2011-06-15 Ulrich Drepper <drepper@gmail.com>
* grp/initgroups.c (__nss_initgroups_database): Renamed and exported.
(internal_getgrouplist): Adjust to name change.
Update use_initgroups_entry if this is not the first call.
* nss/databases.def: Add initgroups entry.
* nss/makedb.c (compute_tables): Check result of multiple hash table
sizes to minimize maximum chain length.

19
grp/initgroups.c
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@ -44,7 +44,7 @@ extern int __nss_group_lookup (service_user **nip, const char *name,
extern void *__nss_lookup_function (service_user *ni, const char *fct_name);
extern service_user *__nss_group_database attribute_hidden;
static service_user *initgroups_database;
service_user *__nss_initgroups_database;
static bool use_initgroups_entry;
@ -80,26 +80,31 @@ internal_getgrouplist (const char *user, gid_t group, long int *size,
/* Start is one, because we have the first group as parameter. */
long int start = 1;
if (initgroups_database == NULL)
if (__nss_initgroups_database == NULL)
{
no_more = __nss_database_lookup ("initgroups", NULL, "",
&initgroups_database);
if (no_more == 0 && initgroups_database == NULL)
&__nss_initgroups_database);
if (no_more == 0 && __nss_initgroups_database == NULL)
{
if (__nss_group_database == NULL)
no_more = __nss_database_lookup ("group", NULL, "compat files",
&__nss_group_database);
initgroups_database = __nss_group_database;
__nss_initgroups_database = __nss_group_database;
}
else if (initgroups_database != NULL)
else if (__nss_initgroups_database != NULL)
{
assert (no_more == 0);
use_initgroups_entry = true;
}
}
else
/* __nss_initgroups_database might have been set through
__nss_configure_lookup in which case use_initgroups_entry was
not set here. */
use_initgroups_entry = __nss_initgroups_database != __nss_group_database;
service_user *nip = initgroups_database;
service_user *nip = __nss_initgroups_database;
while (! no_more)
{
long int prev_start = start;

3
nss/databases.def
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@ -1,5 +1,5 @@
/* List of all databases defined for the NSS in GNU C Library.
Copyright (C) 1996, 1997, 2005 Free Software Foundation, Inc.
Copyright (C) 1996, 1997, 2005, 2011 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
@ -25,6 +25,7 @@ DEFINE_DATABASE (aliases)
DEFINE_DATABASE (ethers)
DEFINE_DATABASE (group)
DEFINE_DATABASE (hosts)
DEFINE_DATABASE (initgroups)
DEFINE_DATABASE (netgroup)
DEFINE_DATABASE (networks)
DEFINE_DATABASE (passwd)