fortify: add bit checking for open(at)?64 functions
This also adds _2-variants for these functions, for extra glorious
checking
Bug: 131861088
Test: mma
Change-Id: I80475ff4bb220c0c47894e9532426f53412f176f
diff --git a/libc/include/bits/fortify/fcntl.h b/libc/include/bits/fortify/fcntl.h
index e7f2c82..4bb441e 100644
--- a/libc/include/bits/fortify/fcntl.h
+++ b/libc/include/bits/fortify/fcntl.h
@@ -92,6 +92,52 @@
}
#endif /* __ANDROID_API__ >= __ANDROID_API_J_MR1__ */
+#if __ANDROID_API__ >= __ANDROID_API_R__
+int __open64_2(const char*, int) __INTRODUCED_IN(30);
+int __openat64_2(int, const char*, int) __INTRODUCED_IN(30);
+int __open64_real(const char* __path, int __flags, ...) __RENAME(open64);
+int __openat64_real(int, const char*, int, ...) __RENAME(openat64);
+
+__BIONIC_ERROR_FUNCTION_VISIBILITY
+int open64(const char* pathname, int flags, mode_t modes, ...) __overloadable
+ __errorattr(__open_too_many_args_error);
+
+__BIONIC_FORTIFY_INLINE
+int open64(const char* const __pass_object_size pathname, int flags)
+ __overloadable
+ __clang_error_if(__open_modes_useful(flags), "'open64' " __open_too_few_args_error) {
+ return __open64_2(pathname, flags);
+}
+
+__BIONIC_FORTIFY_INLINE
+int open64(const char* const __pass_object_size pathname, int flags, mode_t modes)
+ __overloadable
+ __clang_warning_if(!__open_modes_useful(flags) && modes,
+ "'open64' " __open_useless_modes_warning) {
+ return __open64_real(pathname, flags, modes);
+}
+
+__BIONIC_ERROR_FUNCTION_VISIBILITY
+int openat64(int dirfd, const char* pathname, int flags, mode_t modes, ...)
+ __overloadable
+ __errorattr(__open_too_many_args_error);
+
+__BIONIC_FORTIFY_INLINE
+int openat64(int dirfd, const char* const __pass_object_size pathname, int flags)
+ __overloadable
+ __clang_error_if(__open_modes_useful(flags), "'openat64' " __open_too_few_args_error) {
+ return __openat64_2(dirfd, pathname, flags);
+}
+
+__BIONIC_FORTIFY_INLINE
+int openat64(int dirfd, const char* const __pass_object_size pathname, int flags, mode_t modes)
+ __overloadable
+ __clang_warning_if(!__open_modes_useful(flags) && modes,
+ "'openat64' " __open_useless_modes_warning) {
+ return __openat64_real(dirfd, pathname, flags, modes);
+}
+#endif /* __ANDROID_API__ >= __ANDROID_API_R__ */
+
#undef __open_too_many_args_error
#undef __open_too_few_args_error
#undef __open_useless_modes_warning