headers: _FORTIFY_SOURCE: Add _[w][s]open() and [s]open().
Always pass 0 as permission bits if this optional argument is missing.
Warn if argument is missing and _O_CREAT could be detected at compile time.
Warn if more than one optional argument is passed.
Signed-off-by: Christian Franke <christian.franke@t-online.de>
Signed-off-by: Liu Hao <lh_mouse@126.com>
diff --git a/mingw-w64-headers/crt/io.h b/mingw-w64-headers/crt/io.h
index 30b5a7b..fa48649 100644
--- a/mingw-w64-headers/crt/io.h
+++ b/mingw-w64-headers/crt/io.h
@@ -389,6 +389,97 @@
}
#endif
+#if __MINGW_FORTIFY_VA_ARG
+
+#define _O_CREAT 0x0100
+
+_CRTIMP int __cdecl __mingw_call__open(const char *, int, ...) __MINGW_ASM_CRT_CALL(_open);
+_CRTIMP int __cdecl __mingw_call__open_warn_toomany(const char *, int, ...) __MINGW_ASM_CRT_CALL(_open)
+ __attribute__((__warning__("_open(): too many arguments")));
+_CRTIMP int __cdecl __mingw_call__open_warn_missing(const char *, int, ...) __MINGW_ASM_CRT_CALL(_open)
+ __attribute__((__warning__("_open(..._O_CREAT...): missing argument")));
+
+__mingw_bos_extern_ovr
+int _open(const char * __filename, int __flags, ...)
+{
+ if (__builtin_va_arg_pack_len() > 1)
+ return __mingw_call__open_warn_toomany(__filename, __flags, __builtin_va_arg_pack());
+ if (__builtin_va_arg_pack_len() < 1 && __builtin_constant_p(__flags) && (__flags & _O_CREAT))
+ return __mingw_call__open_warn_missing(__filename, __flags, 0);
+ if (__builtin_va_arg_pack_len() < 1)
+ return __mingw_call__open(__filename, __flags, 0);
+ return __mingw_call__open(__filename, __flags, __builtin_va_arg_pack());
+}
+
+_CRTIMP int __cdecl __mingw_call__sopen(const char *, int, int, ...) __MINGW_ASM_CRT_CALL(_sopen);
+_CRTIMP int __cdecl __mingw_call__sopen_warn_toomany(const char *, int, int, ...) __MINGW_ASM_CRT_CALL(_sopen)
+ __attribute__((__warning__("_sopen(): too many arguments")));
+_CRTIMP int __cdecl __mingw_call__sopen_warn_missing(const char *, int, int, ...) __MINGW_ASM_CRT_CALL(_sopen)
+ __attribute__((__warning__("_sopen(..._O_CREAT...): missing argument")));
+
+__mingw_bos_extern_ovr
+int _sopen(const char * __filename, int __flags, int __share, ...)
+{
+ if (__builtin_va_arg_pack_len() > 1)
+ return __mingw_call__sopen_warn_toomany(__filename, __flags, __share, __builtin_va_arg_pack());
+ if (__builtin_va_arg_pack_len() < 1 && __builtin_constant_p(__flags) && (__flags & _O_CREAT))
+ return __mingw_call__sopen_warn_missing(__filename, __flags, __share, 0);
+ if (__builtin_va_arg_pack_len() < 1)
+ return __mingw_call__sopen(__filename, __flags, __share, 0);
+ return __mingw_call__sopen(__filename, __flags, __share, __builtin_va_arg_pack());
+}
+
+_CRTIMP int __cdecl __mingw_call__wopen(const wchar_t *, int, ...) __MINGW_ASM_CRT_CALL(_wopen);
+_CRTIMP int __cdecl __mingw_call__wopen_warn_toomany(const wchar_t *, int, ...) __MINGW_ASM_CRT_CALL(_wopen)
+ __attribute__((__warning__("_wopen(): too many arguments")));
+_CRTIMP int __cdecl __mingw_call__wopen_warn_missing(const wchar_t *, int, ...) __MINGW_ASM_CRT_CALL(_wopen)
+ __attribute__((__warning__("_wopen(..._O_CREAT...): missing argument")));
+
+__mingw_bos_extern_ovr
+int _wopen(const wchar_t * __filename, int __flags, ...)
+{
+ if (__builtin_va_arg_pack_len() > 1)
+ return __mingw_call__wopen_warn_toomany(__filename, __flags, __builtin_va_arg_pack());
+ if (__builtin_va_arg_pack_len() < 1 && __builtin_constant_p(__flags) && (__flags & _O_CREAT))
+ return __mingw_call__wopen_warn_missing(__filename, __flags, 0);
+ if (__builtin_va_arg_pack_len() < 1)
+ return __mingw_call__wopen(__filename, __flags, 0);
+ return __mingw_call__wopen(__filename, __flags, __builtin_va_arg_pack());
+}
+
+_CRTIMP int __cdecl __mingw_call__wsopen(const wchar_t *, int, int, ...) __MINGW_ASM_CRT_CALL(_wsopen);
+_CRTIMP int __cdecl __mingw_call__wsopen_warn_toomany(const wchar_t *, int, int, ...) __MINGW_ASM_CRT_CALL(_wsopen)
+ __attribute__((__warning__("_wsopen(): too many arguments")));
+_CRTIMP int __cdecl __mingw_call__wsopen_warn_missing(const wchar_t *, int, int, ...) __MINGW_ASM_CRT_CALL(_wsopen)
+ __attribute__((__warning__("_wsopen(..._O_CREAT...): missing argument")));
+
+__mingw_bos_extern_ovr
+int _wsopen(const wchar_t * __filename, int __flags, int __share, ...)
+{
+ if (__builtin_va_arg_pack_len() > 1)
+ return __mingw_call__wsopen_warn_toomany(__filename, __flags, __share, __builtin_va_arg_pack());
+ if (__builtin_va_arg_pack_len() < 1 && __builtin_constant_p(__flags) && (__flags & _O_CREAT))
+ return __mingw_call__wsopen_warn_missing(__filename, __flags, __share, 0);
+ if (__builtin_va_arg_pack_len() < 1)
+ return __mingw_call__wsopen(__filename, __flags, __share, 0);
+ return __mingw_call__wsopen(__filename, __flags, __share, __builtin_va_arg_pack());
+}
+
+#ifndef NO_OLDNAMES
+__mingw_bos_extern_ovr
+int open(const char * __filename, int __flags, ...)
+{
+ return _open(__filename, __flags, __builtin_va_arg_pack());
+}
+
+__mingw_bos_extern_ovr
+int sopen(const char * __filename, int __flags, int __share, ...)
+{
+ return _sopen(__filename, __flags, __share, __builtin_va_arg_pack());
+}
+#endif
+
+#endif /* __MINGW_FORTIFY_VA_ARG */
#endif /* __MINGW_FORTIFY_LEVEL > 0 */
#ifdef __cplusplus
