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* inet/getnetgrent_r.c: Include assert.

Browse Source 
(setup): Remove FUNC_NAME and ALL arguments, assume they are always
	"setnetgrent" and 1.
	(endnetgrent_hook): New function.
	(internal_endnetgrent): Use it.
	(__internal_setnetgrent_reuse): Use it.  Adjust setup caller.
	If status is NSS_STATUS_SUCCESS, yet action is continue, call
	endnetgrent hook.
	(internal_getnetgrent_r): Use __nss_lookup_function rather than
	setup.  Recompute getfct pointer after successful
	__internal_setnetgrent_reuse.  Don't use __nss_next.
	(innetgr): Use __nss_lookup_function instead of __nss_lookup.
	Adjust setup caller.
	* nss/nss_files/files-netgrp.c (_nss_files_endnetgrent): Always clear
	data_size and cursor.  Add libnss_files_hidden_proto and
	libnss_files_hidden_def.
	(_nss_files_setnetgrent): Call _nss_files_endnetgrent on failure.
	* nis/nss_nis/nis-netgrp.c (internal_endnetgrent): Always clear
	data_size and cursor.
	(_nss_nis_setnetgrent): Don't call internal_endnetgrent.
	(_nss_nis_getnetgrent_r): Remove result->cursor == NULL handling.
	* nis/nss_nisplus/nisplus-netgrp.c (internal_endnetgrent): Always clear
	data_size and position.
	(_nss_nisplus_setnetgrent): Don't call internal_endnetgrent.

2005-09-09  Ulrich Drepper  <drepper@redhat.com>

	* nss/getent.c (netgroup_keys): Call endnetgrent.
	(main): Call mtrace.

	* nss/nss_files/files-netgrp.c (_nss_files_setnetgrent): We don't
	need locking for the stream.  Use feof_unlocked.

2005-09-09  Jakub Jelinek  <jakub@redhat.com>
This commit is contained in:
Ulrich Drepper 2005-09-10 03:20:33 +00:00
parent f7ca66d115
commit ff3cacc50c
6 changed files with 136 additions and 100 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

35
ChangeLog
View File

@ -1,3 +1,38 @@
2005-09-09 Jakub Jelinek <jakub@redhat.com>
* inet/getnetgrent_r.c: Include assert.
(setup): Remove FUNC_NAME and ALL arguments, assume they are always
"setnetgrent" and 1.
(endnetgrent_hook): New function.
(internal_endnetgrent): Use it.
(__internal_setnetgrent_reuse): Use it. Adjust setup caller.
If status is NSS_STATUS_SUCCESS, yet action is continue, call
endnetgrent hook.
(internal_getnetgrent_r): Use __nss_lookup_function rather than
setup. Recompute getfct pointer after successful
__internal_setnetgrent_reuse. Don't use __nss_next.
(innetgr): Use __nss_lookup_function instead of __nss_lookup.
Adjust setup caller.
* nss/nss_files/files-netgrp.c (_nss_files_endnetgrent): Always clear
data_size and cursor. Add libnss_files_hidden_proto and
libnss_files_hidden_def.
(_nss_files_setnetgrent): Call _nss_files_endnetgrent on failure.
* nis/nss_nis/nis-netgrp.c (internal_endnetgrent): Always clear
data_size and cursor.
(_nss_nis_setnetgrent): Don't call internal_endnetgrent.
(_nss_nis_getnetgrent_r): Remove result->cursor == NULL handling.
* nis/nss_nisplus/nisplus-netgrp.c (internal_endnetgrent): Always clear
data_size and position.
(_nss_nisplus_setnetgrent): Don't call internal_endnetgrent.
2005-09-09 Ulrich Drepper <drepper@redhat.com>
* nss/getent.c (netgroup_keys): Call endnetgrent.
(main): Call mtrace.
* nss/nss_files/files-netgrp.c (_nss_files_setnetgrent): We don't
need locking for the stream. Use feof_unlocked.
2005-09-09 Jakub Jelinek <jakub@redhat.com>
[BZ #1318]

125
inet/getnetgrent_r.c
View File

@ -1,4 +1,5 @@
/* Copyright (C) 1996,1997,1998,1999,2002,2004 Free Software Foundation, Inc.
/* Copyright (C) 1996, 1997, 1998, 1999, 2002, 2004, 2005
Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -16,6 +17,7 @@
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <assert.h>
#include <bits/libc-lock.h>
#include <errno.h>
#include <netdb.h>
@ -33,15 +35,13 @@ __libc_lock_define_initialized (static, lock)
static struct __netgrent dataset;
/* The lookup function for the first entry of this service. */
extern int __nss_netgroup_lookup (service_user **nip, const char *name,
extern int __nss_netgroup_lookup (service_user **nipp, const char *name,
void **fctp) internal_function;
/* Set up NIP to run through the services. If ALL is zero, use NIP's
current location if it's not nil. Return nonzero if there are no
/* Set up NIP to run through the services. Return nonzero if there are no
services (left). */
static enum nss_status
setup (void **fctp, const char *func_name, int all, service_user **nipp)
static int
setup (void **fctp, service_user **nipp)
{
/* Remember the first service_entry, it's always the same. */
static service_user *startp;
@ -51,7 +51,7 @@ setup (void **fctp, const char *func_name, int all, service_user **nipp)
{
/* Executing this more than once at the same time must yield the
same result every time. So we need no locking. */
no_more = __nss_netgroup_lookup (nipp, func_name, fctp);
no_more = __nss_netgroup_lookup (nipp, "setnetgrent", fctp);
startp = no_more ? (service_user *) -1 : *nipp;
}
else if (startp == (service_user *) -1)
@ -59,11 +59,10 @@ setup (void **fctp, const char *func_name, int all, service_user **nipp)
return 1;
else
{
if (all || *nipp == NULL)
/* Reset to the beginning of the service list. */
*nipp = startp;
/* Reset to the beginning of the service list. */
*nipp = startp;
/* Look up the first function. */
no_more = __nss_lookup (nipp, func_name, fctp);
no_more = __nss_lookup (nipp, "setnetgrent", fctp);
}
return no_more;
}
@ -87,6 +86,20 @@ free_memory (struct __netgrent *data)
}
}
static void
endnetgrent_hook (struct __netgrent *datap)
{
enum nss_status (*endfct) (struct __netgrent *);
if (datap->nip == NULL)
return;
endfct = __nss_lookup_function (datap->nip, "endnetgrent");
if (endfct != NULL)
(void) (*endfct) (datap);
datap->nip = NULL;
}
static int
internal_function
__internal_setnetgrent_reuse (const char *group, struct __netgrent *datap,
@ -100,14 +113,29 @@ __internal_setnetgrent_reuse (const char *group, struct __netgrent *datap,
enum nss_status status = NSS_STATUS_UNAVAIL;
struct name_list *new_elem;
/* Free data from previous service. */
endnetgrent_hook (datap);
/* Cycle through all the services and run their setnetgrent functions. */
int no_more = setup (&fct.ptr, "setnetgrent", 1, &datap->nip);
int no_more = setup (&fct.ptr, &datap->nip);
while (! no_more)
{
assert (datap->data == NULL);
/* Ignore status, we force check in `__nss_next'. */
status = (*fct.f) (group, datap);
service_user *old_nip = datap->nip;
no_more = __nss_next (&datap->nip, "setnetgrent", &fct.ptr, status, 0);
if (status == NSS_STATUS_SUCCESS && ! no_more)
{
enum nss_status (*endfct) (struct __netgrent *);
endfct = __nss_lookup_function (old_nip, "endnetgrent");
if (endfct != NULL)
(void) (*endfct) (datap);
}
}
/* Add the current group to the list of known groups. */
@ -157,34 +185,13 @@ setnetgrent (const char *group)
return result;
}
void internal_endnetgrent (struct __netgrent *datap);
libc_hidden_proto (internal_endnetgrent)
void
internal_endnetgrent (struct __netgrent *datap)
{
service_user *old_nip;
union
{
enum nss_status (*f) (struct __netgrent *);
void *ptr;
} fct;
/* Remember which was the last used service. */
old_nip = datap->nip;
/* Cycle through all the services and run their endnetgrent functions. */
int no_more = setup (&fct.ptr, "endnetgrent", 1, &datap->nip);
while (! no_more)
{
/* Ignore status, we force check in `__nss_next'. */
(void) (*fct.f) (datap);
no_more = (datap->nip == old_nip
|| __nss_next (&datap->nip, "endnetgrent", &fct.ptr, 0, 1));
}
endnetgrent_hook (datap);
/* Now free list of all netgroup names from last run. */
free_memory (datap);
}
@ -213,11 +220,7 @@ internal_getnetgrent_r (char **hostp, char **userp, char **domainp,
struct __netgrent *datap,
char *buffer, size_t buflen, int *errnop)
{
union
{
enum nss_status (*f) (struct __netgrent *, char *, size_t, int *);
void *ptr;
} fct;
enum nss_status (*fct) (struct __netgrent *, char *, size_t, int *);
/* Initialize status to return if no more functions are found. */
enum nss_status status = NSS_STATUS_NOTFOUND;
@ -225,10 +228,12 @@ internal_getnetgrent_r (char **hostp, char **userp, char **domainp,
/* Run through available functions, starting with the same function last
run. We will repeat each function as long as it succeeds, and then go
on to the next service action. */
int no_more = setup (&fct.ptr, "getnetgrent_r", 0, &datap->nip);
int no_more = (datap->nip == NULL
|| (fct = __nss_lookup_function (datap->nip, "getnetgrent_r"))
== NULL);
while (! no_more)
{
status = (*fct.f) (datap, buffer, buflen, &errno);
status = (*fct) (datap, buffer, buflen, &errno);
if (status == NSS_STATUS_RETURN)
{
@ -246,8 +251,12 @@ internal_getnetgrent_r (char **hostp, char **userp, char **domainp,
datap, errnop);
}
if (found)
continue;
if (found && datap->nip != NULL)
{
fct = __nss_lookup_function (datap->nip, "getnetgrent_r");
if (fct != NULL)
continue;
}
}
else if (status == NSS_STATUS_SUCCESS && datap->type == group_val)
{
@ -279,7 +288,7 @@ internal_getnetgrent_r (char **hostp, char **userp, char **domainp,
}
}
no_more = __nss_next (&datap->nip, "getnetgrent_r", &fct.ptr, status, 0);
break;
}
if (status == NSS_STATUS_SUCCESS)
@ -322,16 +331,8 @@ innetgr (const char *netgroup, const char *host, const char *user,
int (*f) (const char *, struct __netgrent *);
void *ptr;
} setfct;
union
{
void (*f) (struct __netgrent *);
void *ptr;
} endfct;
union
{
int (*f) (struct __netgrent *, char *, size_t, int *);
void *ptr;
} getfct;
void (*endfct) (struct __netgrent *);
int (*getfct) (struct __netgrent *, char *, size_t, int *);
struct __netgrent entry;
int result = 0;
const char *current_group = netgroup;
@ -345,18 +346,21 @@ innetgr (const char *netgroup, const char *host, const char *user,
the work during one walk through the service list. */
while (1)
{
int no_more = setup (&setfct.ptr, "setnetgrent", 1, &entry.nip);
int no_more = setup (&setfct.ptr, &entry.nip);
while (! no_more)
{
assert (entry.data == NULL);
/* Open netgroup. */
enum nss_status status = (*setfct.f) (current_group, &entry);
if (status == NSS_STATUS_SUCCESS
&& __nss_lookup (&entry.nip, "getnetgrent_r", &getfct.ptr) == 0)
&& (getfct = __nss_lookup_function (entry.nip, "getnetgrent_r"))
!= NULL)
{
char buffer[1024];
while ((*getfct.f) (&entry, buffer, sizeof buffer, &errno)
while ((*getfct) (&entry, buffer, sizeof buffer, &errno)
== NSS_STATUS_SUCCESS)
{
if (entry.type == group_val)
@ -414,8 +418,9 @@ innetgr (const char *netgroup, const char *host, const char *user,
}
/* Free all resources of the service. */
if (__nss_lookup (&entry.nip, "endnetgrent", &endfct.ptr) == 0)
(*endfct.f) (&entry);
endfct = __nss_lookup_function (entry.nip, "endnetgrent");
if (endfct != NULL)
(*endfct) (&entry);
/* Look for the next service. */
no_more = __nss_next (&entry.nip, "setnetgrent",

16
nis/nss_nis/nis-netgrp.c
View File

@ -41,13 +41,10 @@ _nss_netgroup_parseline (char **cursor, struct __netgrent *netgrp,
static void
internal_nis_endnetgrent (struct __netgrent *netgrp)
{
if (netgrp->data != NULL)
{
free (netgrp->data);
netgrp->data = NULL;
netgrp->data_size = 0;
netgrp->cursor = NULL;
}
free (netgrp->data);
netgrp->data = NULL;
netgrp->data_size = 0;
netgrp->cursor = NULL;
}
enum nss_status
@ -65,8 +62,6 @@ _nss_nis_setnetgrent (const char *group, struct __netgrent *netgrp)
if (yp_get_default_domain (&domain))
return NSS_STATUS_UNAVAIL;
internal_nis_endnetgrent (netgrp);
status = yperr2nss (yp_match (domain, "netgroup", group, strlen (group),
&netgrp->data, &len));
if (status == NSS_STATUS_SUCCESS)
@ -99,9 +94,6 @@ enum nss_status
_nss_nis_getnetgrent_r (struct __netgrent *result, char *buffer, size_t buflen,
int *errnop)
{
if (result->cursor == NULL)
return NSS_STATUS_NOTFOUND;
return _nss_netgroup_parseline (&result->cursor, result, buffer, buflen,
errnop);
}

15
nis/nss_nisplus/nisplus-netgrp.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 1997, 2003, 2004 Free Software Foundation, Inc.
/* Copyright (C) 1997, 2003, 2004, 2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997.
@ -141,13 +141,10 @@ _nss_nisplus_getnetgrent_r (struct __netgrent *result, char *buffer,
static void
internal_endnetgrent (struct __netgrent *netgrp)
{
if (netgrp->data != NULL)
{
nis_freeresult ((nis_result *) netgrp->data);
netgrp->data = NULL;
netgrp->data_size = 0;
netgrp->position = 0;
}
nis_freeresult ((nis_result *) netgrp->data);
netgrp->data = NULL;
netgrp->data_size = 0;
netgrp->position = 0;
}
enum nss_status
@ -161,8 +158,6 @@ _nss_nisplus_setnetgrent (const char *group, struct __netgrent *netgrp)
status = NSS_STATUS_SUCCESS;
internal_endnetgrent (netgrp);
sprintf (buf, "[name=%s],netgroup.org_dir", group);
netgrp->data = (char *) nis_list (buf, EXPAND_NAME, NULL, NULL);

21
nss/getent.c
View File

@ -21,22 +21,23 @@
#include <aliases.h>
#include <argp.h>
#include <grp.h>
#include <pwd.h>
#include <shadow.h>
#include <ctype.h>
#include <error.h>
#include <grp.h>
#include <libintl.h>
#include <locale.h>
#include <mcheck.h>
#include <netdb.h>
#include <pwd.h>
#include <shadow.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ether.h>
#include <arpa/inet.h>
#include <arpa/nameser.h>
#include <netinet/ether.h>
#include <netinet/in.h>
#include <sys/socket.h>
/* Get libc version number. */
#include <version.h>
@ -410,6 +411,8 @@ netgroup_keys (int number, char *key[])
}
}
endnetgrent ();
return result;
}
@ -838,7 +841,8 @@ more_help (int key, const char *text, void *input)
int
main (int argc, char *argv[])
{
int remaining, i;
/* Debugging support. */
mtrace ();
/* Set locale via LC_ALL. */
setlocale (LC_ALL, "");
@ -846,6 +850,7 @@ main (int argc, char *argv[])
textdomain (PACKAGE);
/* Parse and process arguments. */
int remaining;
argp_parse (&argp, argc, argv, 0, &remaining, NULL);
if ((argc - remaining) < 1)
@ -855,7 +860,7 @@ main (int argc, char *argv[])
return 1;
}
for (i = 0; databases[i].name; ++i)
for (int i = 0; databases[i].name; ++i)
if (argv[remaining][0] == databases[i].name[0]
&& !strcmp (argv[remaining], databases[i].name))
return databases[i].func (argc - remaining - 1, &argv[remaining + 1]);

24
nss/nss_files/files-netgrp.c
View File

@ -1,5 +1,5 @@
/* Netgroup file parser in nss_files modules.
Copyright (C) 1996, 1997, 2000, 2004 Free Software Foundation, Inc.
Copyright (C) 1996, 1997, 2000, 2004, 2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
@ -22,6 +22,7 @@
#include <errno.h>
#include <netdb.h>
#include <stdio.h>
#include <stdio_ext.h>
#include <stdlib.h>
#include <string.h>
#include "nsswitch.h"
@ -29,6 +30,7 @@
#define DATAFILE "/etc/netgroup"
libnss_files_hidden_proto (_nss_files_endnetgrent)
#define EXPAND(needed) \
do \
@ -75,7 +77,9 @@ _nss_files_setnetgrent (const char *group, struct __netgrent *result)
status = NSS_STATUS_NOTFOUND;
result->cursor = result->data;
while (!feof (fp))
__fsetlocking (fp, FSETLOCKING_BYCALLER);
while (!feof_unlocked (fp))
{
ssize_t curlen = getline (&line, &line_len, fp);
int found;
@ -140,6 +144,9 @@ _nss_files_setnetgrent (const char *group, struct __netgrent *result)
/* We don't need the file and the line buffer anymore. */
free (line);
fclose (fp);
if (status != NSS_STATUS_SUCCESS)
_nss_files_endnetgrent (result);
}
return status;
@ -150,16 +157,13 @@ int
_nss_files_endnetgrent (struct __netgrent *result)
{
/* Free allocated memory for data if some is present. */
if (result->data != NULL)
{
free (result->data);
result->data = NULL;
result->data_size = 0;
result->cursor = NULL;
}
free (result->data);
result->data = NULL;
result->data_size = 0;
result->cursor = NULL;
return NSS_STATUS_SUCCESS;
}
libnss_files_hidden_def (_nss_files_endnetgrent)
static char *
strip_whitespace (char *str)