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nss: Turn __nss_database_lookup into a compatibility symbol

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The function uses the internal service_user type, so it is not
really usable from the outside of glibc.  Rename the function
to __nss_database_lookup2 for internal use, and change
__nss_database_lookup to always indicate failure to the caller.

__nss_next already was a compatibility symbol.  The new
implementation always fails and no longer calls __nss_next2.

unscd, the alternative nscd implementation, does not use
__nss_database_lookup, so it is not affected by this change.
This commit is contained in:
Florian Weimer
2019-05-15 13:51:35 +02:00
parent d50f09181e
commit a9368c34d7
15 changed files with 89 additions and 42 deletions
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8
grp/initgroups.c
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@ -79,12 +79,12 @@ internal_getgrouplist (const char *user, gid_t group, long int *size,
if (__nss_initgroups_database == NULL)
{
if (__nss_database_lookup ("initgroups", NULL, "",
&__nss_initgroups_database) < 0)
if (__nss_database_lookup2 ("initgroups", NULL, "",
&__nss_initgroups_database) < 0)
{
if (__nss_group_database == NULL)
no_more = __nss_database_lookup ("group", NULL, DEFAULT_CONFIG,
&__nss_group_database);
no_more = __nss_database_lookup2 ("group", NULL, DEFAULT_CONFIG,
&__nss_group_database);
__nss_initgroups_database = __nss_group_database;
}