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authorUlrich Drepper <drepper@redhat.com>2007-05-24 23:55:28 +0000
committerUlrich Drepper <drepper@redhat.com>2007-05-24 23:55:28 +0000
commitddfd0535776c47ec01231ac91fabe8b2e128cfa3 (patch)
tree1052c9c568ae6f734290034e8ea566d396b71a13
parent5a8075b116280d0c1ece277e4be75250efca45b2 (diff)
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* Makerules (sysd-rules): Define PTW for ptw-* files.
* Versions: Define GLIBC_2.7 for libc. * include/stdio.h: Declare __fortify_fail. * debug/fortify_fail.c: New file. * debug/Makefile (routines): Add fortify_fail. * debug/chk_fail.c: Use __fortify_fail. * debug/stack_chk_fail.c: Likewise. * io/Versions: Export __open_2, __open64_2, __openat_2, and __openat64_2 for GLIBC_2.7. * io/fcntl.h: When compiling with fortification, include bits/fcntl2.h. * io/open.c: Define *_2 variant of function which checks for O_CREAT and fails if necessary. * io/open64.c: Likewise. * io/openat.c: Likewise. * io/openat64.c: Likewise. * sysdeps/unix/sysv/linux/open64.c: Likewise. * sysdeps/unix/sysv/linux/openat.c: Likewise. * sysdeps/unix/sysv/linux/openat64.c: Likewise. * io/bits/fcntl2.h: New file. * include/fcntl.h: Declare __open_2, __open64_2, __openat_2, and __openat64_2. * include/bits/fcntl2.h: New file. * sysdeps/unix/sysv/linux/Makefile [subdir=io] (sysdep_routines): Add open_2. * sysdeps/unix/sysv/linux/open_2.c: New file.
-rw-r--r--ChangeLog28
-rw-r--r--Makerules8
-rw-r--r--Versions.def1
-rw-r--r--debug/Makefile4
-rw-r--r--debug/chk_fail.c7
-rw-r--r--debug/fortify_fail.c34
-rw-r--r--debug/stack_chk_fail.c7
-rw-r--r--include/bits/fcntl2.h1
-rw-r--r--include/fcntl.h5
-rw-r--r--include/stdio.h1
-rw-r--r--io/Versions3
-rw-r--r--io/bits/fcntl2.h155
-rw-r--r--io/fcntl.h8
-rw-r--r--io/open.c19
-rw-r--r--io/open64.c20
-rw-r--r--io/openat.c17
-rw-r--r--io/openat64.c17
-rw-r--r--sysdeps/unix/sysv/linux/Makefile2
-rw-r--r--sysdeps/unix/sysv/linux/open64.c25
-rw-r--r--sysdeps/unix/sysv/linux/open_2.c32
-rw-r--r--sysdeps/unix/sysv/linux/openat.c18
-rw-r--r--sysdeps/unix/sysv/linux/openat64.c1
22 files changed, 383 insertions, 30 deletions
diff --git a/ChangeLog b/ChangeLog
index d799ba8..40feb12 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,31 @@
+2007-05-24 Ulrich Drepper <drepper@redhat.com>
+
+ * Makerules (sysd-rules): Define PTW for ptw-* files.
+ * Versions: Define GLIBC_2.7 for libc.
+ * include/stdio.h: Declare __fortify_fail.
+ * debug/fortify_fail.c: New file.
+ * debug/Makefile (routines): Add fortify_fail.
+ * debug/chk_fail.c: Use __fortify_fail.
+ * debug/stack_chk_fail.c: Likewise.
+ * io/Versions: Export __open_2, __open64_2, __openat_2, and
+ __openat64_2 for GLIBC_2.7.
+ * io/fcntl.h: When compiling with fortification, include bits/fcntl2.h.
+ * io/open.c: Define *_2 variant of function which checks for O_CREAT
+ and fails if necessary.
+ * io/open64.c: Likewise.
+ * io/openat.c: Likewise.
+ * io/openat64.c: Likewise.
+ * sysdeps/unix/sysv/linux/open64.c: Likewise.
+ * sysdeps/unix/sysv/linux/openat.c: Likewise.
+ * sysdeps/unix/sysv/linux/openat64.c: Likewise.
+ * io/bits/fcntl2.h: New file.
+ * include/fcntl.h: Declare __open_2, __open64_2, __openat_2, and
+ __openat64_2.
+ * include/bits/fcntl2.h: New file.
+ * sysdeps/unix/sysv/linux/Makefile [subdir=io] (sysdep_routines):
+ Add open_2.
+ * sysdeps/unix/sysv/linux/open_2.c: New file.
+
2007-05-21 Ulrich Drepper <drepper@redhat.com>
* sysdeps/x86_64/cacheinfo.c (init_cacheinfo): Pass correct value
diff --git a/Makerules b/Makerules
index 200f8d7..03f39a7 100644
--- a/Makerules
+++ b/Makerules
@@ -1,4 +1,4 @@
-# Copyright (C) 1991-2002,2003,2004,2005,2006 Free Software Foundation, Inc.
+# Copyright (C) 1991-2006, 2007 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
@@ -240,9 +240,9 @@ $(common-objpfx)sysd-rules: $(common-objpfx)config.make $(..)Makerules \
echo "\$$(objpfx)rtld-%$$o: $$dir/%.s \$$(before-compile); \
\$$(compile-command.s)"; \
echo "\$$(objpfx)ptw-%$$o: $$dir/%.S \$$(before-compile); \
- \$$(compile-command.S)"; \
+ \$$(compile-command.S) -DPTW"; \
echo "\$$(objpfx)ptw-%$$o: $$dir/%.s \$$(before-compile); \
- \$$(compile-command.s)"; \
+ \$$(compile-command.s) -DPTW"; \
echo "\$$(objpfx)m_%$$o: $$dir/s_%.S \$$(before-compile); \
\$$(compile-command.S)"; \
echo "\$$(objpfx)m_%$$o: $$dir/s_%.s \$$(before-compile); \
@@ -253,7 +253,7 @@ $(common-objpfx)sysd-rules: $(common-objpfx)config.make $(..)Makerules \
echo "\$$(objpfx)rtld-%$$o: $$dir/%.c \$$(before-compile); \
\$$(compile-command.c)"; \
echo "\$$(objpfx)ptw-%$$o: $$dir/%.c \$$(before-compile); \
- \$$(compile-command.c)"; \
+ \$$(compile-command.c) -DPTW"; \
echo "\$$(objpfx)m_%$$o: $$dir/s_%.c \$$(before-compile); \
\$$(compile-command.c)"; \
done; \
diff --git a/Versions.def b/Versions.def
index 2542084..7365b54 100644
--- a/Versions.def
+++ b/Versions.def
@@ -23,6 +23,7 @@ libc {
GLIBC_2.4
GLIBC_2.5
GLIBC_2.6
+ GLIBC_2.7
%ifdef USE_IN_LIBIO
HURD_CTHREADS_0.3
%endif
diff --git a/debug/Makefile b/debug/Makefile
index 9d9b6ac..b9902cb 100644
--- a/debug/Makefile
+++ b/debug/Makefile
@@ -1,4 +1,4 @@
-# Copyright (C) 1998-2001,2004,2005,2006 Free Software Foundation, Inc.
+# Copyright (C) 1998-2001,2004,2005,2006,2007 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
@@ -42,7 +42,7 @@ routines = backtrace backtracesyms backtracesymsfd noophooks \
gethostname_chk getdomainname_chk wcrtomb_chk mbsnrtowcs_chk \
wcsnrtombs_chk mbsrtowcs_chk wcsrtombs_chk mbstowcs_chk \
wcstombs_chk \
- stack_chk_fail \
+ stack_chk_fail fortify_fail \
$(static-only-routines)
static-only-routines := warning-nop stack_chk_fail_local
diff --git a/debug/chk_fail.c b/debug/chk_fail.c
index 0cfca29..bff17e4 100644
--- a/debug/chk_fail.c
+++ b/debug/chk_fail.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2004, 2005 Free Software Foundation, Inc.
+/* Copyright (C) 2004, 2005, 2007 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
@@ -26,9 +26,6 @@ void
__attribute__ ((noreturn))
__chk_fail (void)
{
- /* The loop is added only to keep gcc happy. */
- while (1)
- __libc_message (2, "*** buffer overflow detected ***: %s terminated\n",
- __libc_argv[0] ?: "<unknown>");
+ __fortify_fail ("buffer overflow detected");
}
libc_hidden_def (__chk_fail)
diff --git a/debug/fortify_fail.c b/debug/fortify_fail.c
new file mode 100644
index 0000000..66494a6
--- /dev/null
+++ b/debug/fortify_fail.c
@@ -0,0 +1,34 @@
+/* Copyright (C) 2007 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
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+
+extern char **__libc_argv attribute_hidden;
+
+void
+__attribute__ ((noreturn))
+__fortify_fail (msg)
+ const char *msg;
+{
+ /* The loop is added only to keep gcc happy. */
+ while (1)
+ __libc_message (2, "*** %s ***: %s terminated\n",
+ msg, __libc_argv[0] ?: "<unknown>");
+}
diff --git a/debug/stack_chk_fail.c b/debug/stack_chk_fail.c
index 298b323..77e42f2 100644
--- a/debug/stack_chk_fail.c
+++ b/debug/stack_chk_fail.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2005 Free Software Foundation, Inc.
+/* Copyright (C) 2005, 2007 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
@@ -26,8 +26,5 @@ void
__attribute__ ((noreturn))
__stack_chk_fail (void)
{
- /* The loop is added only to keep gcc happy. */
- while (1)
- __libc_message (1, "*** stack smashing detected ***: %s terminated\n",
- __libc_argv[0] ?: "<unknown>");
+ __fortify_fail ("stack smashing detected");
}
diff --git a/include/bits/fcntl2.h b/include/bits/fcntl2.h
new file mode 100644
index 0000000..832b2c9
--- /dev/null
+++ b/include/bits/fcntl2.h
@@ -0,0 +1 @@
+#include "../../io/bits/fcntl2.h"
diff --git a/include/fcntl.h b/include/fcntl.h
index e23af1c..1e919be 100644
--- a/include/fcntl.h
+++ b/include/fcntl.h
@@ -24,6 +24,11 @@ extern int __openat64 (int __fd, __const char *__file, int __oflag, ...)
__nonnull ((2));
libc_hidden_proto (__openat64)
+extern int __open_2 (__const char *__path, int __oflag);
+extern int __open64_2 (__const char *__path, int __oflag);
+extern int __openat_2 (int __fd, __const char *__path, int __oflag);
+extern int __openat64_2 (int __fd, __const char *__path, int __oflag);
+
/* Helper functions for the various *at functions. For Linux. */
extern void __atfct_seterrno (int errval, int fd, const char *buf)
diff --git a/include/stdio.h b/include/stdio.h
index b293b8f..6fe881c 100644
--- a/include/stdio.h
+++ b/include/stdio.h
@@ -65,6 +65,7 @@ extern int __gen_tempname (char *__tmpl, int __kind);
extern void __libc_fatal (__const char *__message)
__attribute__ ((__noreturn__));
extern void __libc_message (int do_abort, __const char *__fnt, ...);
+extern void __fortify_fail (const char *msg) __attribute__ ((noreturn));
/* Acquire ownership of STREAM. */
extern void __flockfile (FILE *__stream);
diff --git a/io/Versions b/io/Versions
index 9cc5157..d603668 100644
--- a/io/Versions
+++ b/io/Versions
@@ -116,4 +116,7 @@ libc {
GLIBC_2.6 {
utimensat; futimens;
}
+ GLIBC_2.7 {
+ __open_2; __open64_2; __openat_2; __openat64_2;
+ }
}
diff --git a/io/bits/fcntl2.h b/io/bits/fcntl2.h
new file mode 100644
index 0000000..5f400ae
--- /dev/null
+++ b/io/bits/fcntl2.h
@@ -0,0 +1,155 @@
+/* Checking macros for fcntl functions.
+ Copyright (C) 2007 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
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _FCNTL_H
+# error "Never include <bits/fcntl2.h> directly; use <fcntl.h> instead."
+#endif
+
+/* Check that calls to open and openat with O_CREAT set have an
+ appropriate third/fourth parameter. */
+#ifndef __USE_FILE_OFFSET64
+extern int __open_2 (__const char *__path, int __oflag);
+#else
+extern int __REDIRECT (__open_2, (__const char *__file, int __oflag),
+ __open64_2) __nonnull ((1));
+#endif
+
+#define open(fname, flags, ...) \
+ ({ int ___r; \
+ /* If the compiler complains about an invalid type, excess elements, etc \
+ in the initialization this means a paraleter of the wrong type has \
+ been passed to open. */ \
+ int ___arr[] = { __VA_ARGS__ }; \
+ if (__builtin_constant_p (flags) && (flags & O_CREAT) != 0) \
+ { \
+ /* If the compile complains about the size of this array type the \
+ the mode parameter is missing since O_CREAT has been used. */ \
+ typedef int __open_missing_mode[(flags & O_CREAT) != 0 \
+ ? ((long int) sizeof (___arr) \
+ - (long int) sizeof (int)) : 1]; \
+ } \
+ if (sizeof (___arr) == 0) \
+ ___r = __open_2 (fname, flags); \
+ else \
+ { \
+ /* If the compile complains about the size of this array type too \
+ many parameters have been passed to open. */ \
+ typedef int __open_too_many_args[-(sizeof (___arr) > sizeof (int))]; \
+ ___r = open (fname, flags, ___arr[0]); \
+ } \
+ ___r; \
+ })
+
+
+#ifdef __USE_LARGEFILE64
+extern int __open64_2 (__const char *__path, int __oflag);
+
+# define open64(fname, flags, ...) \
+ ({ int ___r; \
+ /* If the compiler complains about an invalid type, excess elements, etc \
+ in the initialization this means a paraleter of the wrong type has \
+ been passed to open64. */ \
+ int ___arr[] = { __VA_ARGS__ }; \
+ if (__builtin_constant_p (flags) && (flags & O_CREAT) != 0) \
+ { \
+ /* If the compile complains about the size of this array type the \
+ the mode parameter is missing since O_CREAT has been used. */ \
+ typedef int __open_missing_mode[(flags & O_CREAT) != 0 \
+ ? ((long int) sizeof (___arr) \
+ - (long int) sizeof (int)) : 1]; \
+ } \
+ if (sizeof (___arr) == 0) \
+ ___r = __open64_2 (fname, flags); \
+ else \
+ { \
+ /* If the compile complains about the size of this array type too \
+ many parameters have been passed to open64. */ \
+ typedef int __open_too_many_args[-(sizeof (___arr) > sizeof (int))]; \
+ ___r = open64 (fname, flags, ___arr[0]); \
+ } \
+ ___r; \
+ })
+#endif
+
+#ifdef __USE_ATFILE
+# ifndef __USE_FILE_OFFSET64
+extern int __openat_2 (int __fd, __const char *__path, int __oflag);
+# else
+extern int __REDIRECT (__openat_2, (int __fd, __const char *__file,
+ int __oflag), __openat64_2)
+ __nonnull ((1));
+# endif
+
+# define openat(fd, fname, flags, ...) \
+ ({ int ___r; \
+ /* If the compiler complains about an invalid type, excess elements, etc \
+ in the initialization this means a paraleter of the wrong type has \
+ been passed to openat. */ \
+ int ___arr[] = { __VA_ARGS__ }; \
+ if (__builtin_constant_p (flags) && (flags & O_CREAT) != 0) \
+ { \
+ /* If the compile complains about the size of this array type the \
+ the mode parameter is missing since O_CREAT has been used. */ \
+ typedef int __open_missing_mode[(flags & O_CREAT) != 0 \
+ ? ((long int) sizeof (___arr) \
+ - (long int) sizeof (int)) : 1]; \
+ } \
+ if (sizeof (___arr) == 0) \
+ ___r = __openat_2 (fd, fname, flags); \
+ else \
+ { \
+ /* If the compile complains about the size of this array type too \
+ many parameters have been passed to openat. */ \
+ typedef int __open_too_many_args[-(sizeof (___arr) > sizeof (int))]; \
+ ___r = openat (fd, fname, flags, ___arr[0]); \
+ } \
+ ___r; \
+ })
+
+
+# ifdef __USE_LARGEFILE64
+extern int __openat64_2 (int __fd, __const char *__path, int __oflag);
+
+# define openat64(fd, fname, flags, ...) \
+ ({ int ___r; \
+ /* If the compiler complains about an invalid type, excess elements, etc \
+ in the initialization this means a paraleter of the wrong type has \
+ been passed to openat64. */ \
+ int ___arr[] = { __VA_ARGS__ }; \
+ if (__builtin_constant_p (flags) && (flags & O_CREAT) != 0) \
+ { \
+ /* If the compile complains about the size of this array type the \
+ the mode parameter is missing since O_CREAT has been used. */ \
+ typedef int __open_missing_mode[(flags & O_CREAT) != 0 \
+ ? ((long int) sizeof (___arr) \
+ - (long int) sizeof (int)) : 1]; \
+ } \
+ if (sizeof (___arr) == 0) \
+ ___r = __openat64_2 (fd, fname, flags); \
+ else \
+ { \
+ /* If the compile complains about the size of this array type too \
+ many parameters have been passed to openat. */ \
+ typedef int __open_too_many_args[-(sizeof (___arr) > sizeof (int))]; \
+ ___r = openat64 (fd, fname, flags, ___arr[0]); \
+ } \
+ ___r; \
+ })
+# endif
+#endif
diff --git a/io/fcntl.h b/io/fcntl.h
index 72a944b..c89bf62 100644
--- a/io/fcntl.h
+++ b/io/fcntl.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991,1992,1994-2001,2003,2004,2005,2006
+/* Copyright (C) 1991,1992,1994-2001,2003,2004,2005,2006,2007
Free Software Foundation, Inc.
This file is part of the GNU C Library.
@@ -210,6 +210,12 @@ extern int posix_fallocate64 (int __fd, __off64_t __offset, __off64_t __len);
# endif
#endif
+
+/* Define some macros helping to catch common problems. */
+#if __USE_FORTIFY_LEVEL > 0 && !defined __cplusplus
+# include <bits/fcntl2.h>
+#endif
+
__END_DECLS
#endif /* fcntl.h */
diff --git a/io/open.c b/io/open.c
index 188110b..c104406 100644
--- a/io/open.c
+++ b/io/open.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1995, 1996, 1997, 2002 Free Software Foundation, Inc.
+/* Copyright (C) 1991,1995,1996,1997,2002,2007 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
@@ -20,6 +20,9 @@
#include <fcntl.h>
#include <stdarg.h>
#include <stddef.h>
+#include <stdio.h>
+
+extern char **__libc_argv attribute_hidden;
/* Open FILE with access OFLAG. If OFLAG includes O_CREAT,
a third argument is the file protection. */
@@ -51,4 +54,18 @@ libc_hidden_def (__open)
stub_warning (open)
weak_alias (__open, open)
+
+
+int
+__open_2 (file, oflag)
+ const char *file;
+ int oflag;
+{
+ if (oflag & O_CREAT)
+ __fortify_fail ("invalid open call: O_CREAT without mode");
+
+ return __open (file, oflag);
+}
+stub_warning (__open_2)
+
#include <stub-tag.h>
diff --git a/io/open64.c b/io/open64.c
index d9a3811..7056718 100644
--- a/io/open64.c
+++ b/io/open64.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1995, 1996, 1997, 1999, 2000, 2002
+/* Copyright (C) 1991, 1995, 1996, 1997, 1999, 2000, 2002, 2007
Free Software Foundation, Inc.
This file is part of the GNU C Library.
@@ -21,7 +21,7 @@
#include <fcntl.h>
#include <stdarg.h>
#include <stddef.h>
-#include <bp-sym.h>
+#include <stdio.h>
/* Open FILE with access OFLAG. If OFLAG includes O_CREAT,
a third argument is the file protection. */
@@ -51,7 +51,21 @@ __libc_open64 (file, oflag)
}
strong_alias (__libc_open64, __open64)
libc_hidden_def (__open64)
-weak_alias (__libc_open64, BP_SYM (open64))
+weak_alias (__libc_open64, open64)
stub_warning (open64)
+
+
+int
+__open64_2 (file, oflag)
+ const char *file;
+ int oflag;
+{
+ if (oflag & O_CREAT)
+ __fortify_fail ("invalid open64 call: O_CREAT without mode");
+
+ return __open64 (file, oflag);
+}
+stub_warning (__open64_2)
+
#include <stub-tag.h>
diff --git a/io/openat.c b/io/openat.c
index c65ad19..98fa1a1 100644
--- a/io/openat.c
+++ b/io/openat.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 2005, 2006, 2007 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
@@ -20,6 +20,7 @@
#include <fcntl.h>
#include <stdarg.h>
#include <stddef.h>
+#include <stdio.h>
#include <sys/stat.h>
/* Open FILE with access OFLAG. Interpret relative paths relative to
@@ -68,4 +69,18 @@ libc_hidden_def (__openat)
weak_alias (__openat, openat)
stub_warning (openat)
+
+int
+__openat_2 (fd, file, oflag)
+ int fd;
+ const char *file;
+ int oflag;
+{
+ if (oflag & O_CREAT)
+ __fortify_fail ("invalid openat call: O_CREAT without mode");
+
+ return __openat (file, oflag);
+}
+stub_warning (__openat_2)
+
#include <stub-tag.h>
diff --git a/io/openat64.c b/io/openat64.c
index 830701a..2d63490 100644
--- a/io/openat64.c
+++ b/io/openat64.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 2005, 2006, 2007 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
@@ -20,6 +20,7 @@
#include <fcntl.h>
#include <stdarg.h>
#include <stddef.h>
+#include <stdio.h>
#include <sys/stat.h>
/* Open FILE with access OFLAG. Interpret relative paths relative to
@@ -68,4 +69,18 @@ libc_hidden_def (__openat64)
weak_alias (__openat64, openat64)
stub_warning (openat64)
+
+int
+__openat64_2 (fd, file, oflag)
+ int fd;
+ const char *file;
+ int oflag;
+{
+ if (oflag & O_CREAT)
+ __fortify_fail ("invalid openat64 call: O_CREAT without mode");
+
+ return __openat64 (file, oflag);
+}
+stub_warning (__openat_2)
+
#include <stub-tag.h>
diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile
index f59e340..119e37b 100644
--- a/sysdeps/unix/sysv/linux/Makefile
+++ b/sysdeps/unix/sysv/linux/Makefile
@@ -137,7 +137,7 @@ endif
ifeq ($(subdir),io)
sysdep_routines += xstatconv internal_statvfs internal_statvfs64 \
- sync_file_range
+ sync_file_range open_2
endif
ifeq ($(subdir),elf)
diff --git a/sysdeps/unix/sysv/linux/open64.c b/sysdeps/unix/sysv/linux/open64.c
index 5fb5363..a38a31b 100644
--- a/sysdeps/unix/sysv/linux/open64.c
+++ b/sysdeps/unix/sysv/linux/open64.c
@@ -1,4 +1,5 @@
-/* Copyright (C) 1991,1995-1997,1999,2000,2002 Free Software Foundation, Inc.
+/* Copyright (C) 1991,1995-1997,1999,2000,2002,2007
+ 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
@@ -19,7 +20,7 @@
#include <errno.h>
#include <fcntl.h>
#include <stdarg.h>
-#include <bp-sym.h>
+#include <stdio.h>
#include <sysdep-cancel.h>
/* Open FILE with access OFLAG. If OFLAG includes O_CREAT,
@@ -48,6 +49,20 @@ __libc_open64 (const char *file, int oflag, ...)
return result;
}
-weak_alias (__libc_open64, BP_SYM (__open64))
-libc_hidden_weak (BP_SYM (__open64))
-weak_alias (__libc_open64, BP_SYM (open64))
+weak_alias (__libc_open64, __open64)
+libc_hidden_weak (__open64)
+weak_alias (__libc_open64, open64)
+
+
+#ifndef PTW
+int
+__open64_2 (file, oflag)
+ const char *file;
+ int oflag;
+{
+ if (oflag & O_CREAT)
+ __fortify_fail ("invalid open64 call: O_CREAT without mode");
+
+ return __open64 (file, oflag);
+}
+#endif
diff --git a/sysdeps/unix/sysv/linux/open_2.c b/sysdeps/unix/sysv/linux/open_2.c
new file mode 100644
index 0000000..0a6dc28
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/open_2.c
@@ -0,0 +1,32 @@
+/* Copyright (C) 2007 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
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <fcntl.h>
+#include <stdio.h>
+
+
+int
+__open_2 (file, oflag)
+ const char *file;
+ int oflag;
+{
+ if (oflag & O_CREAT)
+ __fortify_fail ("invalid open call: O_CREAT without mode");
+
+ return __open (file, oflag);
+}
diff --git a/sysdeps/unix/sysv/linux/openat.c b/sysdeps/unix/sysv/linux/openat.c
index df53b6c..45b566f 100644
--- a/sysdeps/unix/sysv/linux/openat.c
+++ b/sysdeps/unix/sysv/linux/openat.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 2005, 2006, 2007 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
@@ -30,6 +30,7 @@
#ifndef OPENAT
# define OPENAT openat
+# define __OPENAT_2 __openat_2
# ifndef __ASSUME_ATFCTS
/* Set errno after a failed call. If BUF is not null,
@@ -173,3 +174,18 @@ __OPENAT (fd, file, oflag)
}
libc_hidden_def (__OPENAT)
weak_alias (__OPENAT, OPENAT)
+
+
+int
+__OPENAT_2 (fd, file, oflag)
+ int fd;
+ const char *file;
+ int oflag;
+{
+ if (oflag & O_CREAT)
+#define MSG(s) MSG2 (s)
+#define MSG2(s) "invalid " #s " call: O_CREAT without mode"
+ __fortify_fail (MSG (OPENAT));
+
+ return __OPENAT (fd, file, oflag);
+}
diff --git a/sysdeps/unix/sysv/linux/openat64.c b/sysdeps/unix/sysv/linux/openat64.c
index 9e7a2b3..013a13e 100644
--- a/sysdeps/unix/sysv/linux/openat64.c
+++ b/sysdeps/unix/sysv/linux/openat64.c
@@ -1,4 +1,5 @@
#define OPENAT openat64
+#define __OPENAT_2 __openat64_2
#define MORE_OFLAGS O_LARGEFILE
#include "openat.c"