mirror of
https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
synced 2024-12-27 21:44:34 +01:00
c849849d06
incorrectly when encountering `large' groups (many members and/or many long member names). The reporter tracked this down to the glibc NSS module compatibility code (nss_compat.c): it would prematurely record that a NSS module was finished iterating through its database in some cases. Two aspects are corrected: 1. nss_compat.c recorded that a NSS module was finished iterating whenever the module reported something other than SUCCESS. The correct logic is to continue iteration when the module reports either SUCCESS or RETURN. The __nss_compat_getgrent_r and __nss_compat_getpwent_r routines are updated to reflect this. 2. An internal helper macro __nss_compat_result is used to map glibc NSS status codes to BSD NSS status codes (e.g. NSS_STATUS_SUCCESS -> NS_SUCCESS). It provided the obvious mapping. When a NSS routine is called with a too-small buffer, the convention in the BSD NSS code is to report RETURN. (This is used to implement reentrant APIs such as getpwnam_r(3).) However, the convention in glibc for this case is to set errno = ERANGE and overload TRYAGAIN. __nss_compat_result is updated to handle this case. PR: bin/60287 Reported by: Lachlan O'Dea <odela01@ca.com>
58 lines
2.3 KiB
C
58 lines
2.3 KiB
C
/*-
|
|
* Copyright (c) 2003 Networks Associates Technology, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This software was developed for the FreeBSD Project by
|
|
* Jacques A. Vidrine, Safeport Network Services, and Network
|
|
* Associates Laboratories, the Security Research Division of Network
|
|
* Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035
|
|
* ("CBOSS"), as part of the DARPA CHATS research program.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*
|
|
* Compatibility header for the GNU C Library-style nsswitch interface.
|
|
*/
|
|
#ifndef _NSS_H_
|
|
#define _NSS_H_
|
|
|
|
#include <nsswitch.h>
|
|
|
|
enum nss_status {
|
|
NSS_STATUS_TRYAGAIN = -2,
|
|
NSS_STATUS_UNAVAIL,
|
|
NSS_STATUS_NOTFOUND,
|
|
NSS_STATUS_SUCCESS,
|
|
NSS_STATUS_RETURN
|
|
};
|
|
|
|
#define __nss_compat_result(rv, err) \
|
|
((rv == NSS_STATUS_TRYAGAIN && err == ERANGE) ? NS_RETURN : \
|
|
(rv == NSS_STATUS_TRYAGAIN) ? NS_TRYAGAIN : \
|
|
(rv == NSS_STATUS_UNAVAIL) ? NS_UNAVAIL : \
|
|
(rv == NSS_STATUS_NOTFOUND) ? NS_NOTFOUND : \
|
|
(rv == NSS_STATUS_SUCCESS) ? NS_SUCCESS : \
|
|
(rv == NSS_STATUS_RETURN) ? NS_RETURN : 0)
|
|
|
|
#endif
|