/* -1 == database not found
0 == database entry pointer stored */
int
__nss_database_lookup (const char *database, const char *alternate_name,
const char *defconfig, service_user **ni)
{
/* Prevent multiple threads to change the service table. */
__libc_lock_lock (lock);
/* Reconsider database variable in case some other thread called
`__nss_configure_lookup' while we waited for the lock. */
if (*ni != NULL)
{
__libc_lock_unlock (lock);
return 0;
}
/* Are we initialized yet? */
if (service_table == NULL)
/* Read config file. */
service_table = nss_parse_file (_PATH_NSSWITCH_CONF);
/* Test whether configuration data is available. */
if (service_table != NULL)
{
/* Return first `service_user' entry for DATABASE. */
name_database_entry *entry;
/* XXX Could use some faster mechanism here. But each database is
only requested once and so this might not be critical. */
for (entry = service_table->entry; entry != NULL; entry = entry->next)
if (strcmp (database, entry->name) == 0)
*ni = entry->service;
if (*ni == NULL && alternate_name != NULL)
/* We haven't found an entry so far. Try to find it with the
alternative name. */
for (entry = service_table->entry; entry != NULL; entry = entry->next)
if (strcmp (alternate_name, entry->name) == 0)
*ni = entry->service;
}
/* No configuration data is available, either because nsswitch.conf
doesn't exist or because it doesn't has a line for this database.
DEFCONFIG specifies the default service list for this database,
or null to use the most common default. */
if (*ni == NULL)
*ni = nss_parse_service_list (defconfig
?: "nis [NOTFOUND=return] files");
__libc_lock_unlock (lock);
return 0;
}
/* -1 == database not found
0 == database entry pointer stored */
int
__nss_database_lookup (const char *database, const char *alternate_name,
const char *defconfig, service_user **ni)
{
/* Prevent multiple threads to change the service table. */
lock_nsswitch;
/* Reconsider database variable in case some other thread called
`__nss_configure_lookup' while we waited for the lock. */
if (*ni != NULL)
{
unlock_nsswitch;
return 0;
}
#if __OPTION_EGLIBC_NSSWITCH
/* Are we initialized yet? */
if (service_table == NULL)
/* Read config file. */
service_table = nss_parse_file (_PATH_NSSWITCH_CONF);
#endif
/* Test whether configuration data is available. */
if (service_table != NULL)
{
/* Return first `service_user' entry for DATABASE. */
name_database_entry *entry;
/* XXX Could use some faster mechanism here. But each database is
only requested once and so this might not be critical. */
for (entry = service_table->entry; entry != NULL; entry = entry->next)
if (strcmp (database, entry->name) == 0)
*ni = entry->service;
if (*ni == NULL && alternate_name != NULL)
/* We haven't found an entry so far. Try to find it with the
alternative name. */
for (entry = service_table->entry; entry != NULL; entry = entry->next)
if (strcmp (alternate_name, entry->name) == 0)
*ni = entry->service;
}
#if __OPTION_EGLIBC_NSSWITCH
/* No configuration data is available, either because nsswitch.conf
doesn't exist or because it doesn't have a line for this database.
DEFCONFIG specifies the default service list for this database,
or null to use the most common default. */
if (*ni == NULL)
{
*ni = nss_parse_service_list (defconfig
?: "nis [NOTFOUND=return] files");
if (*ni != NULL)
{
/* Record the memory we've just allocated in defconfig_entries list,
so we can free it later. */
name_database_entry *entry;
/* Allocate ENTRY plus size of name (1 here). */
entry = (name_database_entry *) malloc (sizeof (*entry) + 1);
if (entry != NULL)
{
entry->next = defconfig_entries;
entry->service = *ni;
entry->name = "";
defconfig_entries = entry;
}
}
}
