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-rw-r--r--io/bits/fcntl2.h92
1 files changed, 92 insertions, 0 deletions
diff --git a/io/bits/fcntl2.h b/io/bits/fcntl2.h
index 34f05d793d..26f1792fd1 100644
--- a/io/bits/fcntl2.h
+++ b/io/bits/fcntl2.h
@@ -32,6 +32,8 @@ extern int __REDIRECT (__open_2, (const char *__path, int __oflag),
extern int __REDIRECT (__open_alias, (const char *__path, int __oflag, ...),
open64) __nonnull ((1));
#endif
+
+#ifdef __va_arg_pack_len
__errordecl (__open_too_many_args,
"open can be called either with 2 or 3 arguments, not more");
__errordecl (__open_missing_mode,
@@ -58,12 +60,34 @@ open (const char *__path, int __oflag, ...)
return __open_alias (__path, __oflag, __va_arg_pack ());
}
+#elif __fortify_use_clang
+__fortify_function_error_function __attribute_overloadable__ int
+open (const char *__path, int __oflag, mode_t __mode, ...)
+ __fortify_clang_unavailable ("open can be called either with 2 or 3 arguments, not more");
+
+__fortify_function __attribute_overloadable__ int
+open (__fortify_clang_overload_arg (const char *, ,__path), int __oflag)
+ __fortify_clang_prefer_this_overload
+ __fortify_clang_error (__OPEN_NEEDS_MODE (__oflag),
+ "open with O_CREAT or O_TMPFILE in second argument needs 3 arguments")
+{
+ return __open_2 (__path, __oflag);
+}
+
+__fortify_function __attribute_overloadable__ int
+open (__fortify_clang_overload_arg (const char *, ,__path), int __oflag,
+ mode_t __mode)
+{
+ return __open_alias (__path, __oflag, __mode);
+}
+#endif
#ifdef __USE_LARGEFILE64
extern int __open64_2 (const char *__path, int __oflag) __nonnull ((1));
extern int __REDIRECT (__open64_alias, (const char *__path, int __oflag,
...), open64) __nonnull ((1));
+# ifdef __va_arg_pack_len
__errordecl (__open64_too_many_args,
"open64 can be called either with 2 or 3 arguments, not more");
__errordecl (__open64_missing_mode,
@@ -90,6 +114,27 @@ open64 (const char *__path, int __oflag, ...)
return __open64_alias (__path, __oflag, __va_arg_pack ());
}
+# elif __fortify_use_clang
+__fortify_function_error_function __attribute_overloadable__ int
+open64 (const char *__path, int __oflag, mode_t __mode, ...)
+ __fortify_clang_unavailable ("open64 can be called either with 2 or 3 arguments, not more");
+
+__fortify_function __attribute_overloadable__ int
+open64 (__fortify_clang_overload_arg (const char *, ,__path), int __oflag)
+ __fortify_clang_prefer_this_overload
+ __fortify_clang_error (__OPEN_NEEDS_MODE (__oflag),
+ "open64 with O_CREAT or O_TMPFILE in second argument needs 3 arguments")
+{
+ return __open64_2 (__path, __oflag);
+}
+
+__fortify_function __attribute_overloadable__ int
+open64 (__fortify_clang_overload_arg (const char *, ,__path), int __oflag,
+ mode_t __mode)
+{
+ return __open64_alias (__path, __oflag, __mode);
+}
+# endif
#endif
@@ -108,6 +153,8 @@ extern int __REDIRECT (__openat_alias, (int __fd, const char *__path,
int __oflag, ...), openat64)
__nonnull ((2));
# endif
+
+# ifdef __va_arg_pack_len
__errordecl (__openat_too_many_args,
"openat can be called either with 3 or 4 arguments, not more");
__errordecl (__openat_missing_mode,
@@ -134,6 +181,28 @@ openat (int __fd, const char *__path, int __oflag, ...)
return __openat_alias (__fd, __path, __oflag, __va_arg_pack ());
}
+# elif __fortify_use_clang
+__fortify_function_error_function __attribute_overloadable__ int
+openat (int __fd, const char *__path, int __oflag, mode_t __mode, ...)
+ __fortify_clang_unavailable ("openat can be called either with 3 or 4 arguments, not more");
+
+__fortify_function __attribute_overloadable__ int
+openat (int __fd, __fortify_clang_overload_arg (const char *, ,__path),
+ int __oflag)
+ __fortify_clang_prefer_this_overload
+ __fortify_clang_error (__OPEN_NEEDS_MODE (__oflag),
+ "openat with O_CREAT or O_TMPFILE in third argument needs 4 arguments")
+{
+ return __openat_2 (__fd, __path, __oflag);
+}
+
+__fortify_function __attribute_overloadable__ int
+openat (int __fd, __fortify_clang_overload_arg (const char *, ,__path),
+ int __oflag, mode_t __mode)
+{
+ return __openat_alias (__fd, __path, __oflag, __mode);
+}
+# endif
# ifdef __USE_LARGEFILE64
@@ -147,6 +216,7 @@ __errordecl (__openat64_too_many_args,
__errordecl (__openat64_missing_mode,
"openat64 with O_CREAT or O_TMPFILE in third argument needs 4 arguments");
+# ifdef __va_arg_pack_len
__fortify_function int
openat64 (int __fd, const char *__path, int __oflag, ...)
{
@@ -168,5 +238,27 @@ openat64 (int __fd, const char *__path, int __oflag, ...)
return __openat64_alias (__fd, __path, __oflag, __va_arg_pack ());
}
+# elif __fortify_use_clang
+__fortify_function_error_function __attribute_overloadable__ int
+openat64 (int __fd, const char *__path, int __oflag, mode_t __mode, ...)
+ __fortify_clang_unavailable ("openat64 can be called either with 3 or 4 arguments, not more");
+
+__fortify_function __attribute_overloadable__ int
+openat64 (int __fd, __fortify_clang_overload_arg (const char *, ,__path),
+ int __oflag)
+ __fortify_clang_prefer_this_overload
+ __fortify_clang_error (__OPEN_NEEDS_MODE (__oflag),
+ "openat64 with O_CREAT or O_TMPFILE in third argument needs 4 arguments")
+{
+ return __openat64_2 (__fd, __path, __oflag);
+}
+
+__fortify_function __attribute_overloadable__ int
+openat64 (int __fd, __fortify_clang_overload_arg (const char *, ,__path),
+ int __oflag, mode_t __mode)
+{
+ return __openat64_alias (__fd, __path, __oflag, __mode);
+}
+# endif
# endif
#endif