* libio/fileops.c (_IO_new_file_fopen): Recognize 'e' flag and set
O_CLOEXEC is needed. * nis/nss_compat/compat-grp.c: Use 'e' flag when opening file. Avoid additional fcntl to set O_CLOEXEC if not needed. * nis/nss_compat/compat-initgroups.c: Likewise. * nis/nss_compat/compat-pwd.c: Likewise. * nis/nss_compat/compat-spwd.c: Likewise.
This commit is contained in:
Ulrich Drepper
parent
65d834b0ad
commit
cc7837639d
10
ChangeLog
10
ChangeLog
@ -1,3 +1,13 @@
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2007-07-22 Ulrich Drepper <drepper@redhat.com>
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* libio/fileops.c (_IO_new_file_fopen): Recognize 'e' flag and set
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O_CLOEXEC is needed.
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* nis/nss_compat/compat-grp.c: Use 'e' flag when opening file.
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Avoid additional fcntl to set O_CLOEXEC if not needed.
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* nis/nss_compat/compat-initgroups.c: Likewise.
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* nis/nss_compat/compat-pwd.c: Likewise.
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* nis/nss_compat/compat-spwd.c: Likewise.
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2007-07-21 Samuel Thibault <samuel.thibault@ens-lyon.org>
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* manual/errno.texi: Change ECANCELED value to 119.
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@ -1,4 +1,4 @@
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/* Copyright (C) 1996-1999,2001-2005,2006 Free Software Foundation, Inc.
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/* Copyright (C) 1996-1999, 2001-2006, 2007 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Thorsten Kukuk <kukuk@suse.de>, 1996.
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@ -27,6 +27,7 @@
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#include <string.h>
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#include <rpc/types.h>
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#include <bits/libc-lock.h>
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#include <kernel-features.h>
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static service_user *ni;
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static enum nss_status (*nss_setgrent) (int stayopen);
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@ -70,6 +71,19 @@ static ent_t ext_ent = { TRUE, NSS_STATUS_SUCCESS, NULL, { NULL, 0, 0 }};
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/* Protect global state against multiple changers. */
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__libc_lock_define_initialized (static, lock)
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/* Positive if O_CLOEXEC is supported, negative if it is not supported,
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zero if it is still undecided. This variable is shared with the
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other compat functions. */
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#ifdef __ASSUME_O_CLOEXEC
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# define __compat_have_cloexec 1
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#else
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# ifdef O_CLOEXEC
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int __compat_have_cloexec;
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# else
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# define __compat_have_cloexec -1
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# endif
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#endif
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/* Prototypes for local functions. */
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static void blacklist_store_name (const char *, ent_t *);
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static int in_blacklist (const char *, int, ent_t *);
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@ -107,21 +121,36 @@ internal_setgrent (ent_t *ent, int stayopen, int needent)
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if (ent->stream == NULL)
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{
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ent->stream = fopen ("/etc/group", "rm");
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ent->stream = fopen ("/etc/group", "rme");
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if (ent->stream == NULL)
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status = errno == EAGAIN ? NSS_STATUS_TRYAGAIN : NSS_STATUS_UNAVAIL;
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else
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{
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/* We have to make sure the file is `closed on exec'. */
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int result, flags;
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int result = 0;
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result = flags = fcntl (fileno_unlocked (ent->stream), F_GETFD, 0);
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if (result >= 0)
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if (__compat_have_cloexec <= 0)
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{
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flags |= FD_CLOEXEC;
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result = fcntl (fileno_unlocked (ent->stream), F_SETFD, flags);
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int flags;
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result = flags = fcntl (fileno_unlocked (ent->stream), F_GETFD,
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0);
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if (result >= 0)
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{
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#if defined O_CLOEXEC && !defined __ASSUME_O_CLOEXEC
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if (__compat_have_cloexec == 0)
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__compat_have_cloexec = (flags & FD_CLOEXEC) ? 1 : -1;
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if (__compat_have_cloexec < 0)
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#endif
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{
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flags |= FD_CLOEXEC;
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result = fcntl (fileno_unlocked (ent->stream), F_SETFD,
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flags);
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}
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}
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}
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if (result < 0)
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{
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/* Something went wrong. Close the stream and return a
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@ -1,4 +1,4 @@
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/* Copyright (C) 1998-2003, 2004, 2006 Free Software Foundation, Inc.
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/* Copyright (C) 1998-2004, 2006, 2007 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Thorsten Kukuk <kukuk@suse.de>, 1998.
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@ -30,6 +30,7 @@
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#include <sys/param.h>
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#include <nsswitch.h>
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#include <bits/libc-lock.h>
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#include <kernel-features.h>
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static service_user *ni;
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/* Type of the lookup function. */
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@ -74,6 +75,19 @@ struct ent_t
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typedef struct ent_t ent_t;
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/* Positive if O_CLOEXEC is supported, negative if it is not supported,
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zero if it is still undecided. This variable is shared with the
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other compat functions. */
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#ifdef __ASSUME_O_CLOEXEC
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# define __compat_have_cloexec 1
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#else
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# ifdef O_CLOEXEC
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extern int __compat_have_cloexec;
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# else
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# define __compat_have_cloexec -1
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# endif
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#endif
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/* Prototypes for local functions. */
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static void blacklist_store_name (const char *, ent_t *);
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static int in_blacklist (const char *, int, ent_t *);
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@ -117,21 +131,35 @@ internal_setgrent (ent_t *ent)
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else
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ent->blacklist.current = 0;
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ent->stream = fopen ("/etc/group", "rm");
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ent->stream = fopen ("/etc/group", "rme");
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if (ent->stream == NULL)
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status = errno == EAGAIN ? NSS_STATUS_TRYAGAIN : NSS_STATUS_UNAVAIL;
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else
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{
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/* We have to make sure the file is `closed on exec'. */
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int result, flags;
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int result = 0;
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result = flags = fcntl (fileno_unlocked (ent->stream), F_GETFD, 0);
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if (result >= 0)
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if (__compat_have_cloexec <= 0)
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{
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flags |= FD_CLOEXEC;
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result = fcntl (fileno_unlocked (ent->stream), F_SETFD, flags);
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int flags;
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result = flags = fcntl (fileno_unlocked (ent->stream), F_GETFD, 0);
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if (result >= 0)
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{
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#if defined O_CLOEXEC && !defined __ASSUME_O_CLOEXEC
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if (__compat_have_cloexec == 0)
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__compat_have_cloexec = (flags & FD_CLOEXEC) ? 1 : -1;
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if (__compat_have_cloexec < 0)
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#endif
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{
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flags |= FD_CLOEXEC;
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result = fcntl (fileno_unlocked (ent->stream), F_SETFD,
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flags);
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}
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}
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}
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if (result < 0)
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{
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/* Something went wrong. Close the stream and return a
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@ -1,4 +1,4 @@
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/* Copyright (C) 1996-1999,2001-2005,2006 Free Software Foundation, Inc.
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/* Copyright (C) 1996-1999, 2001-2006, 2007 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1996.
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@ -29,6 +29,7 @@
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#include <rpc/types.h>
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#include <rpcsvc/ypclnt.h>
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#include <bits/libc-lock.h>
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#include <kernel-features.h>
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#include "netgroup.h"
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@ -80,6 +81,19 @@ static ent_t ext_ent = { false, false, true, NSS_STATUS_SUCCESS, NULL,
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/* Protect global state against multiple changers. */
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__libc_lock_define_initialized (static, lock)
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/* Positive if O_CLOEXEC is supported, negative if it is not supported,
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zero if it is still undecided. This variable is shared with the
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other compat functions. */
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#ifdef __ASSUME_O_CLOEXEC
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# define __compat_have_cloexec 1
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#else
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# ifdef O_CLOEXEC
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extern int __compat_have_cloexec;
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# else
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# define __compat_have_cloexec -1
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# endif
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#endif
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/* Prototypes for local functions. */
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static void blacklist_store_name (const char *, ent_t *);
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static int in_blacklist (const char *, int, ent_t *);
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@ -227,21 +241,36 @@ internal_setpwent (ent_t *ent, int stayopen, int needent)
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if (ent->stream == NULL)
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{
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ent->stream = fopen ("/etc/passwd", "rm");
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ent->stream = fopen ("/etc/passwd", "rme");
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if (ent->stream == NULL)
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status = errno == EAGAIN ? NSS_STATUS_TRYAGAIN : NSS_STATUS_UNAVAIL;
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else
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{
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/* We have to make sure the file is `closed on exec'. */
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int result, flags;
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int result = 0;
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result = flags = fcntl (fileno_unlocked (ent->stream), F_GETFD, 0);
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if (result >= 0)
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if (__compat_have_cloexec <= 0)
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{
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flags |= FD_CLOEXEC;
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result = fcntl (fileno_unlocked (ent->stream), F_SETFD, flags);
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int flags;
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result = flags = fcntl (fileno_unlocked (ent->stream), F_GETFD,
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0);
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if (result >= 0)
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{
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#if defined O_CLOEXEC && !defined __ASSUME_O_CLOEXEC
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if (__compat_have_cloexec == 0)
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__compat_have_cloexec = (flags & FD_CLOEXEC) ? 1 : -1;
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if (__compat_have_cloexec < 0)
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#endif
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{
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flags |= FD_CLOEXEC;
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result = fcntl (fileno_unlocked (ent->stream), F_SETFD,
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flags);
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}
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}
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}
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if (result < 0)
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{
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/* Something went wrong. Close the stream and return a
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@ -1,4 +1,4 @@
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/* Copyright (C) 1996-1999,2001-2005,2006 Free Software Foundation, Inc.
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/* Copyright (C) 1996-1999, 2001-2006, 2007 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1996.
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@ -29,6 +29,7 @@
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#include <rpc/types.h>
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#include <rpcsvc/ypclnt.h>
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#include <bits/libc-lock.h>
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#include <kernel-features.h>
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#include "netgroup.h"
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@ -77,6 +78,19 @@ static ent_t ext_ent = { false, true, false, NSS_STATUS_SUCCESS, NULL,
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/* Protect global state against multiple changers. */
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__libc_lock_define_initialized (static, lock)
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/* Positive if O_CLOEXEC is supported, negative if it is not supported,
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zero if it is still undecided. This variable is shared with the
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other compat functions. */
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#ifdef __ASSUME_O_CLOEXEC
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# define __compat_have_cloexec 1
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#else
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# ifdef O_CLOEXEC
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extern int __compat_have_cloexec;
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# else
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# define __compat_have_cloexec -1
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# endif
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#endif
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/* Prototypes for local functions. */
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static void blacklist_store_name (const char *, ent_t *);
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static int in_blacklist (const char *, int, ent_t *);
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@ -180,21 +194,36 @@ internal_setspent (ent_t *ent, int stayopen)
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if (ent->stream == NULL)
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{
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ent->stream = fopen ("/etc/shadow", "rm");
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ent->stream = fopen ("/etc/shadow", "rme");
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if (ent->stream == NULL)
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status = errno == EAGAIN ? NSS_STATUS_TRYAGAIN : NSS_STATUS_UNAVAIL;
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else
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{
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/* We have to make sure the file is `closed on exec'. */
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int result, flags;
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int result = 0;
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result = flags = fcntl (fileno_unlocked (ent->stream), F_GETFD, 0);
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if (result >= 0)
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if (__compat_have_cloexec <= 0)
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{
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flags |= FD_CLOEXEC;
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result = fcntl (fileno_unlocked (ent->stream), F_SETFD, flags);
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int flags;
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result = flags = fcntl (fileno_unlocked (ent->stream), F_GETFD,
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0);
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if (result >= 0)
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{
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#if defined O_CLOEXEC && !defined __ASSUME_O_CLOEXEC
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if (__compat_have_cloexec == 0)
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__compat_have_cloexec = (flags & FD_CLOEXEC) ? 1 : -1;
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if (__compat_have_cloexec < 0)
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#endif
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{
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flags |= FD_CLOEXEC;
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result = fcntl (fileno_unlocked (ent->stream), F_SETFD,
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flags);
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}
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}
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}
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if (result < 0)
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{
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/* Something went wrong. Close the stream and return a
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