Set close-on-exec flag when opening files.
2013-11-10 Janne Blomqvist <jb@gcc.gnu.org> * configure.ac: Check presence of mkostemp. * io/unix.c (set_close_on_exec): New function. (tempfile_open): Use mkostemp and O_CLOEXEC if available, fallback to calling set_close_on_exec. (regular_file): Add O_CLOEXEC to flags if defined. (open_external): Call set_close_on_exec if O_CLOEXEC is not defined. * config.h.in: Regenerated. * configure: Regenerated. * Makefile.in: Regenerated. * aclocal.m4: Regenerated. From-SVN: r204654
This commit is contained in:
Janne Blomqvist
parent
8d44833878
commit
c20fdb917f
7 changed files with 142 additions and 60 deletions
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@ -1,3 +1,17 @@
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2013-11-10 Janne Blomqvist <jb@gcc.gnu.org>
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* configure.ac: Check presence of mkostemp.
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* io/unix.c (set_close_on_exec): New function.
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(tempfile_open): Use mkostemp and O_CLOEXEC if available, fallback
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to calling set_close_on_exec.
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(regular_file): Add O_CLOEXEC to flags if defined.
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(open_external): Call set_close_on_exec if O_CLOEXEC is not
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defined.
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* config.h.in: Regenerated.
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* configure: Regenerated.
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* Makefile.in: Regenerated.
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* aclocal.m4: Regenerated.
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2013-10-01 Tobias Burnus <burnus@net-b.de>
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PR fortran/55469
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# Makefile.in generated by automake 1.11.1 from Makefile.am.
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# Makefile.in generated by automake 1.11.3 from Makefile.am.
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# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
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# 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation,
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# Inc.
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# 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software
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# Foundation, Inc.
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# This Makefile.in is free software; the Free Software Foundation
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# gives unlimited permission to copy and/or distribute it,
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# with or without modifications, as long as this notice is preserved.
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cd "$(DESTDIR)$(toolexeclibdir)" && rm -f $$files
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ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
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$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
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74
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# generated automatically by aclocal 1.11.1 -*- Autoconf -*-
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# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
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# 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
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# 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation,
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# Inc.
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# This file is free software; the Free Software Foundation
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# gives unlimited permission to copy and/or distribute it,
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# with or without modifications, as long as this notice is preserved.
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If you have problems, you may need to regenerate the build system entirely.
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To do so, use the procedure documented by the package, typically `autoreconf'.])])
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# Copyright (C) 2002, 2003, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
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# 2011 Free Software Foundation, Inc.
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# Copyright (C) 2003, 2004, 2005, 2006, 2011 Free Software Foundation,
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# This file is free software; the Free Software Foundation
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# Copyright (C) 2001, 2002, 2003, 2005, 2008, 2010 Free Software
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# Foundation, Inc.
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#
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# This file is free software; the Free Software Foundation
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# gives unlimited permission to copy and/or distribute it,
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# with or without modifications, as long as this notice is preserved.
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AC_MSG_RESULT(yes)])
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#
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# This file is free software; the Free Software Foundation
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||||
AC_DEFUN([_AM_PROG_TAR],
|
||||
[# Always define AMTAR for backward compatibility.
|
||||
AM_MISSING_PROG([AMTAR], [tar])
|
||||
[# Always define AMTAR for backward compatibility. Yes, it's still used
|
||||
# in the wild :-( We should find a proper way to deprecate it ...
|
||||
AC_SUBST([AMTAR], ['$${TAR-tar}'])
|
||||
m4_if([$1], [v7],
|
||||
[am__tar='${AMTAR} chof - "$$tardir"'; am__untar='${AMTAR} xf -'],
|
||||
[am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
|
||||
[m4_case([$1], [ustar],, [pax],,
|
||||
[m4_fatal([Unknown tar format])])
|
||||
AC_MSG_CHECKING([how to create a $1 tar archive])
|
||||
|
|
|
|||
|
|
@ -606,6 +606,9 @@
|
|||
/* Define if you have __mingw_snprintf. */
|
||||
#undef HAVE_MINGW_SNPRINTF
|
||||
|
||||
/* Define to 1 if you have the `mkostemp' function. */
|
||||
#undef HAVE_MKOSTEMP
|
||||
|
||||
/* Define to 1 if you have the `mkstemp' function. */
|
||||
#undef HAVE_MKSTEMP
|
||||
|
||||
|
|
|
|||
23
libgfortran/configure
vendored
23
libgfortran/configure
vendored
|
|
@ -654,6 +654,7 @@ CPP
|
|||
am__fastdepCC_FALSE
|
||||
am__fastdepCC_TRUE
|
||||
CCDEPMODE
|
||||
am__nodep
|
||||
AMDEPBACKSLASH
|
||||
AMDEP_FALSE
|
||||
AMDEP_TRUE
|
||||
|
|
@ -2596,6 +2597,7 @@ as_fn_append ac_func_list " umask"
|
|||
as_fn_append ac_func_list " getegid"
|
||||
as_fn_append ac_func_list " secure_getenv"
|
||||
as_fn_append ac_func_list " __secure_getenv"
|
||||
as_fn_append ac_func_list " mkostemp"
|
||||
as_fn_append ac_header_list " math.h"
|
||||
# Check that the precious variables saved in the cache have kept the same
|
||||
# value.
|
||||
|
|
@ -3386,11 +3388,11 @@ MAKEINFO=${MAKEINFO-"${am_missing_run}makeinfo"}
|
|||
|
||||
# We need awk for the "check" target. The system "awk" is bad on
|
||||
# some platforms.
|
||||
# Always define AMTAR for backward compatibility.
|
||||
# Always define AMTAR for backward compatibility. Yes, it's still used
|
||||
# in the wild :-( We should find a proper way to deprecate it ...
|
||||
AMTAR='$${TAR-tar}'
|
||||
|
||||
AMTAR=${AMTAR-"${am_missing_run}tar"}
|
||||
|
||||
am__tar='${AMTAR} chof - "$$tardir"'; am__untar='${AMTAR} xf -'
|
||||
am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'
|
||||
|
||||
|
||||
|
||||
|
|
@ -3523,6 +3525,7 @@ fi
|
|||
if test "x$enable_dependency_tracking" != xno; then
|
||||
am_depcomp="$ac_aux_dir/depcomp"
|
||||
AMDEPBACKSLASH='\'
|
||||
am__nodep='_no'
|
||||
fi
|
||||
if test "x$enable_dependency_tracking" != xno; then
|
||||
AMDEP_TRUE=
|
||||
|
|
@ -4340,6 +4343,7 @@ else
|
|||
# instance it was reported that on HP-UX the gcc test will end up
|
||||
# making a dummy file named `D' -- because `-MD' means `put the output
|
||||
# in D'.
|
||||
rm -rf conftest.dir
|
||||
mkdir conftest.dir
|
||||
# Copy depcomp to subdir because otherwise we won't find it if we're
|
||||
# using a relative directory.
|
||||
|
|
@ -4399,7 +4403,7 @@ else
|
|||
break
|
||||
fi
|
||||
;;
|
||||
msvisualcpp | msvcmsys)
|
||||
msvc7 | msvc7msys | msvisualcpp | msvcmsys)
|
||||
# This compiler won't grok `-c -o', but also, the minuso test has
|
||||
# not run yet. These depmodes are late enough in the game, and
|
||||
# so weak that their functioning should not be impacted.
|
||||
|
|
@ -5515,6 +5519,7 @@ else
|
|||
# instance it was reported that on HP-UX the gcc test will end up
|
||||
# making a dummy file named `D' -- because `-MD' means `put the output
|
||||
# in D'.
|
||||
rm -rf conftest.dir
|
||||
mkdir conftest.dir
|
||||
# Copy depcomp to subdir because otherwise we won't find it if we're
|
||||
# using a relative directory.
|
||||
|
|
@ -5574,7 +5579,7 @@ else
|
|||
break
|
||||
fi
|
||||
;;
|
||||
msvisualcpp | msvcmsys)
|
||||
msvc7 | msvc7msys | msvisualcpp | msvcmsys)
|
||||
# This compiler won't grok `-c -o', but also, the minuso test has
|
||||
# not run yet. These depmodes are late enough in the game, and
|
||||
# so weak that their functioning should not be impacted.
|
||||
|
|
@ -12337,7 +12342,7 @@ else
|
|||
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
|
||||
lt_status=$lt_dlunknown
|
||||
cat > conftest.$ac_ext <<_LT_EOF
|
||||
#line 12340 "configure"
|
||||
#line 12345 "configure"
|
||||
#include "confdefs.h"
|
||||
|
||||
#if HAVE_DLFCN_H
|
||||
|
|
@ -12443,7 +12448,7 @@ else
|
|||
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
|
||||
lt_status=$lt_dlunknown
|
||||
cat > conftest.$ac_ext <<_LT_EOF
|
||||
#line 12446 "configure"
|
||||
#line 12451 "configure"
|
||||
#include "confdefs.h"
|
||||
|
||||
#if HAVE_DLFCN_H
|
||||
|
|
@ -16586,6 +16591,8 @@ done
|
|||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -280,7 +280,7 @@ else
|
|||
strcasestr getrlimit gettimeofday stat fstat lstat getpwuid vsnprintf dup \
|
||||
getcwd localtime_r gmtime_r getpwuid_r ttyname_r clock_gettime \
|
||||
readlink getgid getpid getppid getuid geteuid umask getegid \
|
||||
secure_getenv __secure_getenv)
|
||||
secure_getenv __secure_getenv mkostemp)
|
||||
fi
|
||||
|
||||
# Check strerror_r, cannot be above as versions with two and three arguments exist
|
||||
|
|
|
|||
|
|
@ -1070,6 +1070,20 @@ unpack_filename (char *cstring, const char *fstring, int len)
|
|||
}
|
||||
|
||||
|
||||
/* Set the close-on-exec flag for an existing fd, if the system
|
||||
supports such. */
|
||||
|
||||
static void __attribute__ ((unused))
|
||||
set_close_on_exec (int fd __attribute__ ((unused)))
|
||||
{
|
||||
/* Mingw does not define F_SETFD. */
|
||||
#if defined(F_SETFD) && defined(FD_CLOEXEC)
|
||||
if (fd >= 0)
|
||||
fcntl(fd, F_SETFD, FD_CLOEXEC);
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
/* Helper function for tempfile(). Tries to open a temporary file in
|
||||
the directory specified by tempdir. If successful, the file name is
|
||||
stored in fname and the descriptor returned. Returns -1 on
|
||||
|
|
@ -1109,7 +1123,12 @@ tempfile_open (const char *tempdir, char **fname)
|
|||
mode_mask = umask (S_IXUSR | S_IRWXG | S_IRWXO);
|
||||
#endif
|
||||
|
||||
#if defined(HAVE_MKOSTEMP) && defined(O_CLOEXEC)
|
||||
fd = mkostemp (template, O_RDWR | O_CREAT | O_EXCL | O_CLOEXEC);
|
||||
#else
|
||||
fd = mkstemp (template);
|
||||
set_close_on_exec (fd);
|
||||
#endif
|
||||
|
||||
#ifdef HAVE_UMASK
|
||||
(void) umask (mode_mask);
|
||||
|
|
@ -1119,6 +1138,13 @@ tempfile_open (const char *tempdir, char **fname)
|
|||
fd = -1;
|
||||
int count = 0;
|
||||
size_t slashlen = strlen (slash);
|
||||
int flags = O_RDWR | O_CREAT | O_EXCL;
|
||||
#if defined(HAVE_CRLF) && defined(O_BINARY)
|
||||
flags |= O_BINARY;
|
||||
#endif
|
||||
#ifdef O_CLOEXEC
|
||||
flags |= O_CLOEXEC;
|
||||
#endif
|
||||
do
|
||||
{
|
||||
snprintf (template, tempdirlen + 23, "%s%sgfortrantmpaaaXXXXXX",
|
||||
|
|
@ -1142,14 +1168,12 @@ tempfile_open (const char *tempdir, char **fname)
|
|||
continue;
|
||||
}
|
||||
|
||||
#if defined(HAVE_CRLF) && defined(O_BINARY)
|
||||
fd = open (template, O_RDWR | O_CREAT | O_EXCL | O_BINARY,
|
||||
S_IRUSR | S_IWUSR);
|
||||
#else
|
||||
fd = open (template, O_RDWR | O_CREAT | O_EXCL, S_IRUSR | S_IWUSR);
|
||||
#endif
|
||||
fd = open (template, flags, S_IRUSR | S_IWUSR);
|
||||
}
|
||||
while (fd == -1 && errno == EEXIST);
|
||||
#ifndef O_CLOEXEC
|
||||
set_close_on_exec (fd);
|
||||
#endif
|
||||
#endif /* HAVE_MKSTEMP */
|
||||
|
||||
*fname = template;
|
||||
|
|
@ -1323,6 +1347,10 @@ regular_file (st_parameter_open *opp, unit_flags *flags)
|
|||
crflag |= O_BINARY;
|
||||
#endif
|
||||
|
||||
#ifdef O_CLOEXEC
|
||||
crflag |= O_CLOEXEC;
|
||||
#endif
|
||||
|
||||
mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH;
|
||||
fd = open (path, rwflag | crflag, mode);
|
||||
if (flags->action != ACTION_UNSPECIFIED)
|
||||
|
|
@ -1386,6 +1414,9 @@ open_external (st_parameter_open *opp, unit_flags *flags)
|
|||
/* regular_file resets flags->action if it is ACTION_UNSPECIFIED and
|
||||
* if it succeeds */
|
||||
fd = regular_file (opp, flags);
|
||||
#ifndef O_CLOEXEC
|
||||
set_close_on_exec (fd);
|
||||
#endif
|
||||
}
|
||||
|
||||
if (fd < 0)
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue