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From 74ca5695cd9913691192e075449b8be5794d50f0 Mon Sep 17 00:00:00 2001
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From: Mike Frysinger <vapier@gentoo.org>
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Date: Thu, 8 Oct 2009 02:51:55 +0000
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Subject: [PATCH 12/15] clean up O_CLOEXEC handling
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Drop the "#ifndef O_CLOEXEC" cruft, enable O_CLOEXEC in most fcntl.h
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headers, and import __ASSUME_O_CLOEXEC from glibc.
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Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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---
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libc/pwd_grp/lckpwdf.c | 8 +++++++-
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libc/sysdeps/linux/alpha/bits/fcntl.h | 2 --
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libc/sysdeps/linux/arm/bits/fcntl.h | 2 --
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libc/sysdeps/linux/avr32/bits/fcntl.h | 1 +
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libc/sysdeps/linux/bfin/bits/fcntl.h | 2 ++
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libc/sysdeps/linux/cris/bits/fcntl.h | 1 +
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libc/sysdeps/linux/frv/bits/fcntl.h | 2 ++
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libc/sysdeps/linux/hppa/bits/fcntl.h | 1 +
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libc/sysdeps/linux/i386/bits/fcntl.h | 2 --
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libc/sysdeps/linux/ia64/bits/fcntl.h | 2 --
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libc/sysdeps/linux/m68k/bits/fcntl.h | 1 +
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libc/sysdeps/linux/microblaze/bits/fcntl.h | 2 ++
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libc/sysdeps/linux/mips/bits/fcntl.h | 1 +
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libc/sysdeps/linux/powerpc/bits/fcntl.h | 2 --
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libc/sysdeps/linux/sh/bits/fcntl.h | 2 --
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libc/sysdeps/linux/sh64/bits/fcntl.h | 2 ++
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libc/sysdeps/linux/sparc/bits/fcntl.h | 2 --
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libc/sysdeps/linux/x86_64/bits/fcntl.h | 2 --
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libc/sysdeps/linux/xtensa/bits/fcntl.h | 1 +
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19 files changed, 21 insertions(+), 17 deletions(-)
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diff --git a/libc/pwd_grp/lckpwdf.c b/libc/pwd_grp/lckpwdf.c
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index 0b0fb47..aec6283 100644
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--- a/libc/pwd_grp/lckpwdf.c
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+++ b/libc/pwd_grp/lckpwdf.c
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@@ -75,7 +75,7 @@ lckpwdf (void)
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/* Prevent problems caused by multiple threads. */
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__UCLIBC_MUTEX_LOCK(mylock);
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- lock_fd = open (_PATH_PASSWD, O_WRONLY);
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+ lock_fd = open (_PATH_PASSWD, O_WRONLY | O_CLOEXEC);
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if (lock_fd == -1) {
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/* Cannot create lock file. */
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goto DONE;
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@@ -97,6 +97,12 @@ lckpwdf (void)
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goto DONE;
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}
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+#ifndef __ASSUME_O_CLOEXEC
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+ /* Make sure file gets correctly closed when process finished. */
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+ fcntl (lock_fd, F_SETFD, FD_CLOEXEC);
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+#endif
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+
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+
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/* Now we have to get exclusive write access. Since multiple
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process could try this we won't stop when it first fails.
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Instead we set a timeout for the system call. Once the timer
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diff --git a/libc/sysdeps/linux/alpha/bits/fcntl.h b/libc/sysdeps/linux/alpha/bits/fcntl.h
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index 2a6b9ea..649c563 100644
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--- a/libc/sysdeps/linux/alpha/bits/fcntl.h
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+++ b/libc/sysdeps/linux/alpha/bits/fcntl.h
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@@ -50,9 +50,7 @@
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# define O_NOFOLLOW 0200000 /* Do not follow links. */
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# define O_DIRECT 02000000 /* Direct disk access. */
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# define O_NOATIME 04000000 /* Do not set atime. */
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-# if 0
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# define O_CLOEXEC 010000000 /* Set close_on_exec. */
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-# endif
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#endif
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#ifdef __USE_LARGEFILE64
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diff --git a/libc/sysdeps/linux/arm/bits/fcntl.h b/libc/sysdeps/linux/arm/bits/fcntl.h
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index 86cea4b..7cc5a9d 100644
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--- a/libc/sysdeps/linux/arm/bits/fcntl.h
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+++ b/libc/sysdeps/linux/arm/bits/fcntl.h
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@@ -50,9 +50,7 @@
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# define O_NOFOLLOW 0100000 /* Do not follow links. */
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# define O_DIRECT 0200000 /* Direct disk access. */
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# define O_NOATIME 01000000 /* Do not set atime. */
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-# if 0
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# define O_CLOEXEC 02000000 /* Set close_on_exec. */
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-# endif
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#endif
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/* For now Linux has synchronisity options for data and read operations.
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diff --git a/libc/sysdeps/linux/avr32/bits/fcntl.h b/libc/sysdeps/linux/avr32/bits/fcntl.h
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index 2301e22..767243e 100644
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--- a/libc/sysdeps/linux/avr32/bits/fcntl.h
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+++ b/libc/sysdeps/linux/avr32/bits/fcntl.h
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@@ -30,6 +30,7 @@
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# define O_DIRECTORY 00200000 /* direct disk access */
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# define O_NOFOLLOW 00400000 /* don't follow links */
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# define O_NOATIME 01000000 /* don't set atime */
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+# define O_CLOEXEC 02000000 /* set close_on_exec */
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#endif
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#ifdef __USE_LARGEFILE64
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diff --git a/libc/sysdeps/linux/bfin/bits/fcntl.h b/libc/sysdeps/linux/bfin/bits/fcntl.h
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index 7d0bcf9..aabf94d 100644
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--- a/libc/sysdeps/linux/bfin/bits/fcntl.h
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+++ b/libc/sysdeps/linux/bfin/bits/fcntl.h
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@@ -48,6 +48,8 @@
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# define O_DIRECTORY 040000 /* Must be a directory. */
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# define O_NOFOLLOW 0100000 /* Do not follow links. */
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# define O_DIRECT 0200000 /* Direct disk access. */
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+# define O_NOATIME 01000000 /* don't set atime */
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+# define O_CLOEXEC 02000000 /* set close_on_exec */
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#endif
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/* For now Linux has synchronisity options for data and read operations.
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diff --git a/libc/sysdeps/linux/cris/bits/fcntl.h b/libc/sysdeps/linux/cris/bits/fcntl.h
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index a2106ef..29443ba 100644
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--- a/libc/sysdeps/linux/cris/bits/fcntl.h
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+++ b/libc/sysdeps/linux/cris/bits/fcntl.h
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@@ -50,6 +50,7 @@
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# define O_DIRECTORY 0200000 /* Must be a directory. */
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# define O_NOFOLLOW 0400000 /* Do not follow links. */
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# define O_NOATIME 01000000 /* Do not set atime. */
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+# define O_CLOEXEC 02000000 /* set close_on_exec */
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#endif
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/* For now Linux has synchronisity options for data and read operations.
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diff --git a/libc/sysdeps/linux/frv/bits/fcntl.h b/libc/sysdeps/linux/frv/bits/fcntl.h
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index 06e8860..5bff4d3 100644
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--- a/libc/sysdeps/linux/frv/bits/fcntl.h
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+++ b/libc/sysdeps/linux/frv/bits/fcntl.h
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@@ -45,6 +45,8 @@
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# define O_DIRECT 040000 /* Direct disk access. */
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# define O_DIRECTORY 0200000 /* Must be a directory. */
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# define O_NOFOLLOW 0400000 /* Do not follow links. */
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+# define O_NOATIME 01000000 /* don't set atime */
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+# define O_CLOEXEC 02000000 /* set close_on_exec */
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#endif
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/* For now Linux has synchronisity options for data and read operations.
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diff --git a/libc/sysdeps/linux/hppa/bits/fcntl.h b/libc/sysdeps/linux/hppa/bits/fcntl.h
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index cc23bf8..86e3b6f 100644
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--- a/libc/sysdeps/linux/hppa/bits/fcntl.h
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+++ b/libc/sysdeps/linux/hppa/bits/fcntl.h
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@@ -50,6 +50,7 @@
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# define O_DIRECTORY 00010000 /* Must be a directory. */
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# define O_NOFOLLOW 00000200 /* Do not follow links. */
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# define O_NOATIME 04000000 /* Do not set atime. */
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+# define O_CLOEXEC 010000000 /* set close_on_exec */
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#endif
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#ifdef __USE_LARGEFILE64
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diff --git a/libc/sysdeps/linux/i386/bits/fcntl.h b/libc/sysdeps/linux/i386/bits/fcntl.h
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index 7f0b552..22e073b 100644
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--- a/libc/sysdeps/linux/i386/bits/fcntl.h
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+++ b/libc/sysdeps/linux/i386/bits/fcntl.h
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@@ -50,9 +50,7 @@
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# define O_DIRECTORY 0200000 /* Must be a directory. */
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# define O_NOFOLLOW 0400000 /* Do not follow links. */
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# define O_NOATIME 01000000 /* Do not set atime. */
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-# if 0
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# define O_CLOEXEC 02000000 /* Set close_on_exec. */
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-# endif
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#endif
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/* For now Linux has synchronisity options for data and read operations.
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diff --git a/libc/sysdeps/linux/ia64/bits/fcntl.h b/libc/sysdeps/linux/ia64/bits/fcntl.h
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index d134c4b..85a55f6 100644
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--- a/libc/sysdeps/linux/ia64/bits/fcntl.h
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+++ b/libc/sysdeps/linux/ia64/bits/fcntl.h
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@@ -49,9 +49,7 @@
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# define O_DIRECTORY 0200000 /* must be a directory */
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# define O_NOFOLLOW 0400000 /* don't follow links */
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# define O_NOATIME 01000000 /* Do not set atime. */
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-# if 0
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# define O_CLOEXEC 02000000 /* Set close_on_exec. */
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-# endif
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#endif
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#ifdef __USE_LARGEFILE64
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diff --git a/libc/sysdeps/linux/m68k/bits/fcntl.h b/libc/sysdeps/linux/m68k/bits/fcntl.h
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index d36198d..e564b42 100644
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--- a/libc/sysdeps/linux/m68k/bits/fcntl.h
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+++ b/libc/sysdeps/linux/m68k/bits/fcntl.h
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@@ -49,6 +49,7 @@
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# define O_NOFOLLOW 0100000 /* Do not follow links. */
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# define O_DIRECT 0200000 /* Direct disk access. */
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# define O_NOATIME 01000000 /* Do not set atime. */
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+# define O_CLOEXEC 02000000 /* set close_on_exec */
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#endif
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/* For now Linux has synchronisity options for data and read operations.
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diff --git a/libc/sysdeps/linux/microblaze/bits/fcntl.h b/libc/sysdeps/linux/microblaze/bits/fcntl.h
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index c8aeb91..da35209 100644
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--- a/libc/sysdeps/linux/microblaze/bits/fcntl.h
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+++ b/libc/sysdeps/linux/microblaze/bits/fcntl.h
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@@ -45,6 +45,8 @@
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# define O_DIRECTORY 040000 /* Must be a directory. */
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195 |
# define O_NOFOLLOW 0100000 /* Do not follow links. */
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196 |
# define O_DIRECT 0200000 /* Direct disk access. */
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197 |
+# define O_NOATIME 01000000 /* Do not set atime. */
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+# define O_CLOEXEC 02000000 /* set close_on_exec */
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#endif
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/* For now Linux has synchronisity options for data and read operations.
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diff --git a/libc/sysdeps/linux/mips/bits/fcntl.h b/libc/sysdeps/linux/mips/bits/fcntl.h
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203 |
index ef015a4..f0072fd 100644
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204 |
--- a/libc/sysdeps/linux/mips/bits/fcntl.h
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+++ b/libc/sysdeps/linux/mips/bits/fcntl.h
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@@ -51,6 +51,7 @@
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# define O_DIRECT 0x8000 /* Direct disk access hint. */
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# define O_DIRECTORY 0x10000 /* Must be a directory. */
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209 |
# define O_NOATIME 0x40000 /* Do not set atime. */
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+# define O_CLOEXEC 02000000 /* set close_on_exec */
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#endif
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/* For now Linux has no synchronisity options for data and read operations.
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diff --git a/libc/sysdeps/linux/powerpc/bits/fcntl.h b/libc/sysdeps/linux/powerpc/bits/fcntl.h
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index ceb75b4..0759c6a 100644
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216 |
--- a/libc/sysdeps/linux/powerpc/bits/fcntl.h
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+++ b/libc/sysdeps/linux/powerpc/bits/fcntl.h
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@@ -50,9 +50,7 @@
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# define O_DIRECTORY 040000 /* Must be a directory. */
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# define O_NOFOLLOW 0100000 /* Do not follow links. */
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# define O_NOATIME 01000000 /* Do not set atime. */
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-# if 0
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# define O_CLOEXEC 02000000 /* Set close_on_exec. */
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-# endif
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#endif
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#ifdef __USE_LARGEFILE64
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diff --git a/libc/sysdeps/linux/sh/bits/fcntl.h b/libc/sysdeps/linux/sh/bits/fcntl.h
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index 570484c..adb7377 100644
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--- a/libc/sysdeps/linux/sh/bits/fcntl.h
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+++ b/libc/sysdeps/linux/sh/bits/fcntl.h
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@@ -50,9 +50,7 @@
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# define O_DIRECTORY 0200000 /* Must be a directory. */
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# define O_NOFOLLOW 0400000 /* Do not follow links. */
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235 |
# define O_NOATIME 01000000 /* Do not set atime. */
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236 |
-# if 0
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237 |
# define O_CLOEXEC 02000000 /* Set close_on_exec. */
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-# endif
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#endif
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/* For now Linux has synchronisity options for data and read operations.
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|
242 |
diff --git a/libc/sysdeps/linux/sh64/bits/fcntl.h b/libc/sysdeps/linux/sh64/bits/fcntl.h
|
yann@1819
|
243 |
index 06e8860..245d35a 100644
|
yann@1819
|
244 |
--- a/libc/sysdeps/linux/sh64/bits/fcntl.h
|
yann@1819
|
245 |
+++ b/libc/sysdeps/linux/sh64/bits/fcntl.h
|
yann@1819
|
246 |
@@ -45,6 +45,8 @@
|
yann@1819
|
247 |
# define O_DIRECT 040000 /* Direct disk access. */
|
yann@1819
|
248 |
# define O_DIRECTORY 0200000 /* Must be a directory. */
|
yann@1819
|
249 |
# define O_NOFOLLOW 0400000 /* Do not follow links. */
|
yann@1819
|
250 |
+# define O_NOATIME 01000000 /* Do not set atime. */
|
yann@1819
|
251 |
+# define O_CLOEXEC 02000000 /* set close_on_exec */
|
yann@1819
|
252 |
#endif
|
yann@1819
|
253 |
|
yann@1819
|
254 |
/* For now Linux has synchronisity options for data and read operations.
|
yann@1819
|
255 |
diff --git a/libc/sysdeps/linux/sparc/bits/fcntl.h b/libc/sysdeps/linux/sparc/bits/fcntl.h
|
yann@1819
|
256 |
index 29c09a9..31a6d9b 100644
|
yann@1819
|
257 |
--- a/libc/sysdeps/linux/sparc/bits/fcntl.h
|
yann@1819
|
258 |
+++ b/libc/sysdeps/linux/sparc/bits/fcntl.h
|
yann@1819
|
259 |
@@ -49,9 +49,7 @@
|
yann@1819
|
260 |
# define O_NOFOLLOW 0x20000 /* don't follow links */
|
yann@1819
|
261 |
# define O_DIRECT 0x100000 /* direct disk access hint */
|
yann@1819
|
262 |
# define O_NOATIME 0x200000 /* Do not set atime. */
|
yann@1819
|
263 |
-# if 0
|
yann@1819
|
264 |
# define O_CLOEXEC 0x400000 /* Set close_on_exit. */
|
yann@1819
|
265 |
-# endif
|
yann@1819
|
266 |
#endif
|
yann@1819
|
267 |
|
yann@1819
|
268 |
#ifdef __USE_LARGEFILE64
|
yann@1819
|
269 |
diff --git a/libc/sysdeps/linux/x86_64/bits/fcntl.h b/libc/sysdeps/linux/x86_64/bits/fcntl.h
|
yann@1819
|
270 |
index be00e4a..f1cf388 100644
|
yann@1819
|
271 |
--- a/libc/sysdeps/linux/x86_64/bits/fcntl.h
|
yann@1819
|
272 |
+++ b/libc/sysdeps/linux/x86_64/bits/fcntl.h
|
yann@1819
|
273 |
@@ -50,9 +50,7 @@
|
yann@1819
|
274 |
# define O_DIRECTORY 0200000 /* Must be a directory. */
|
yann@1819
|
275 |
# define O_NOFOLLOW 0400000 /* Do not follow links. */
|
yann@1819
|
276 |
# define O_NOATIME 01000000 /* Do not set atime. */
|
yann@1819
|
277 |
-# if 0
|
yann@1819
|
278 |
# define O_CLOEXEC 02000000 /* Set close_on_exec. */
|
yann@1819
|
279 |
-# endif
|
yann@1819
|
280 |
#endif
|
yann@1819
|
281 |
|
yann@1819
|
282 |
/* For now Linux has synchronisity options for data and read operations.
|
yann@1819
|
283 |
diff --git a/libc/sysdeps/linux/xtensa/bits/fcntl.h b/libc/sysdeps/linux/xtensa/bits/fcntl.h
|
yann@1819
|
284 |
index a89362e..921a626 100644
|
yann@1819
|
285 |
--- a/libc/sysdeps/linux/xtensa/bits/fcntl.h
|
yann@1819
|
286 |
+++ b/libc/sysdeps/linux/xtensa/bits/fcntl.h
|
yann@1819
|
287 |
@@ -50,6 +50,7 @@
|
yann@1819
|
288 |
# define O_DIRECTORY 0200000 /* Must be a directory. */
|
yann@1819
|
289 |
# define O_NOFOLLOW 0400000 /* Do not follow links. */
|
yann@1819
|
290 |
# define O_NOATIME 01000000 /* Do not set atime. */
|
yann@1819
|
291 |
+# define O_CLOEXEC 02000000 /* set close_on_exec */
|
yann@1819
|
292 |
#endif
|
yann@1819
|
293 |
|
yann@1819
|
294 |
/* For now Linux has synchronisity options for data and read operations.
|
yann@1819
|
295 |
--
|
yann@1819
|
296 |
1.6.6.1
|
yann@1819
|
297 |
|