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* nss/nss_files/files-parse.c (parse_list): Reset ELT for elements

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after the first!

	* nss/nsswitch.c (__nss_database_lookup): If nsswitch.conf is missing
	or doesn't mention DATABASE, use an internal default equivalent to
	"DATABASE: compat [NOTFOUND=return] dns [NOTFOUND=return] files".
	(nss_lookup_function): Call nss_new_service as needed.
	(nss_parse_file): Don't bother calling nss_new_service here.

	* grp/fgetgrent.c (LINE_PARSER): Pass zero SWALLOW arg for fields.
	* pwd/fgetpwent.c: Likewise.
This commit is contained in:
Roland McGrath 1996-06-25 10:20:09 +00:00
parent 5f0e6fc702
commit c66273aae5
5 changed files with 77 additions and 41 deletions
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12
ChangeLog
View File

@ -1,5 +1,17 @@
Tue Jun 25 02:59:11 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
* nss/nss_files/files-parse.c (parse_list): Reset ELT for elements
after the first!
* nss/nsswitch.c (__nss_database_lookup): If nsswitch.conf is missing
or doesn't mention DATABASE, use an internal default equivalent to
"DATABASE: compat [NOTFOUND=return] dns [NOTFOUND=return] files".
(nss_lookup_function): Call nss_new_service as needed.
(nss_parse_file): Don't bother calling nss_new_service here.
* grp/fgetgrent.c (LINE_PARSER): Pass zero SWALLOW arg for fields.
* pwd/fgetpwent.c: Likewise.
* malloc/malloc.h: Declare malloc_object_allocated_size, malloc_walk.
* malloc/Makefile (dist-routines): Add malloc-size, malloc-walk.
* malloc/malloc-size.c: New file.

6
grp/fgetgrent.c
View File

@ -31,9 +31,9 @@ struct grent_data {};
#include "../nss/nss_files/files-parse.c"
LINE_PARSER
(
STRING_FIELD (result->gr_name, ISCOLON);
STRING_FIELD (result->gr_passwd, ISCOLON);
INT_FIELD (result->gr_gid, ISCOLON, 10,);
STRING_FIELD (result->gr_name, ISCOLON, 0);
STRING_FIELD (result->gr_passwd, ISCOLON, 0);
INT_FIELD (result->gr_gid, ISCOLON, 0, 10,);
)

1
nss/nss_files/files-parse.c
View File

@ -137,6 +137,7 @@ parse_list (char *line, struct parser_data *data, int datalen)
do
++line;
while (TRAILING_LIST_SEPARATOR_P (*line));
elt = line;
}
else if (*line == '\0' || *line == '\n')
{

81
nss/nsswitch.c
View File

@ -85,30 +85,51 @@ nss_init (void)
0 == database entry pointer stored */
int
__nss_database_lookup (const char *database, service_user **ni)
{
/* Return first `service_user' entry for DATABASE.
XXX Will use perfect hashing function for known databases. */
name_database_entry *entry;
/* Test whether configuration data is available. */
if (service_table == NULL)
{
if (nss_initialized == 0)
nss_init ();
if (service_table == NULL)
return -1;
}
/* Test whether configuration data is available. */
if (service_table)
{
/* Return first `service_user' entry for DATABASE.
XXX Will use perfect hashing function for known databases. */
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)
break;
if (entry == NULL || (*ni = entry->service) == NULL)
return -1;
{
*ni = entry->service;
return 0;
}
}
/* No configuration data is available, either because nsswitch.conf
doesn't exist or because it doesn't have a line for this database.
Use a default equivalent to:
database: compat [NOTFOUND=return] dns [NOTFOUND=return] files
*/
{
#define DEFAULT_SERVICE(name, next) \
static service_user default_##name = \
{ \
#name, \
{ \
NSS_ACTION_CONTINUE, \
NSS_ACTION_CONTINUE, \
NSS_ACTION_RETURN, \
NSS_ACTION_RETURN, \
}, \
NULL, NULL, \
next \
}
DEFAULT_SERVICE (files, NULL);
DEFAULT_SERVICE (dns, &default_files);
DEFAULT_SERVICE (compat, &default_dns);
*ni = &default_compat;
}
return 0;
}
@ -196,15 +217,26 @@ nss_lookup_function (service_user *ni, const char *fct_name)
if (nss_find_entry (&ni->known, fct_name, &result) >= 0)
return result;
/* If we failed to allocate the needed data structures for the
service return an error. This should only happen when we are out
of memory. */
if (ni->library == NULL)
return NULL;
/* We now modify global data. Protect it. */
__libc_lock_lock (lock);
if (ni->library == NULL)
{
/* This service has not yet been used. Fetch the service library
for it, creating a new one if need be. If there is no service
table from the file, this static variable holds the head of the
service_library list made from the default configuration. */
static name_database default_table;
ni->library = nss_new_service (service_table ?: &default_table,
ni->name);
if (ni->library == NULL)
{
/* This only happens when out of memory. */
__libc_lock_unlock (lock);
return NULL;
}
}
if (ni->library->lib_handle == NULL)
{
/* Load the shared library. */
@ -374,15 +406,6 @@ nss_parse_file (const char *fname)
/* Close configuration file. */
fclose (fp);
/* Now create for each service we could use an entry in LIBRARY list. */
for (last = result->entry; last != NULL; last = last->next)
{
service_user *runp;
for (runp = last->service; runp != NULL; runp = runp->next)
runp->library = nss_new_service (result, runp->name);
}
return result;
}

12
pwd/fgetpwent.c
View File

@ -29,12 +29,12 @@ struct pwent_data {};
#include "../nss/nss_files/files-parse.c"
LINE_PARSER
(
STRING_FIELD (result->pw_name, ISCOLON);
STRING_FIELD (result->pw_passwd, ISCOLON);
INT_FIELD (result->pw_uid, ISCOLON, 10,);
INT_FIELD (result->pw_gid, ISCOLON, 10,);
STRING_FIELD (result->pw_gecos, ISCOLON);
STRING_FIELD (result->pw_dir, ISCOLON);
STRING_FIELD (result->pw_name, ISCOLON, 0);
STRING_FIELD (result->pw_passwd, ISCOLON, 0);
INT_FIELD (result->pw_uid, ISCOLON, 0, 10,);
INT_FIELD (result->pw_gid, ISCOLON, 0, 10,);
STRING_FIELD (result->pw_gecos, ISCOLON, 0);
STRING_FIELD (result->pw_dir, ISCOLON, 0);
result->pw_shell = line;
)