libc: enable sprintf FORTIFY_SOURCE under clang
clang doesn't support __builtin_va_arg_pack(), so we have
to use #define instead.
Change-Id: I2ee75e6267d60cdf997fee6b9b0547bf68f062a1
diff --git a/libc/include/stdio.h b/libc/include/stdio.h
index 511bcd2..42c6d34 100644
--- a/libc/include/stdio.h
+++ b/libc/include/stdio.h
@@ -450,10 +450,11 @@
__END_DECLS
#endif /* _GNU_SOURCE */
-#if defined(__BIONIC_FORTIFY) && !defined(__clang__)
+#if defined(__BIONIC_FORTIFY)
__BEGIN_DECLS
+#if !defined(__clang__)
__BIONIC_FORTIFY_INLINE
__printflike(3, 0)
int vsnprintf(char *dest, size_t size, const char *format, __va_list ap)
@@ -475,7 +476,11 @@
return __builtin___snprintf_chk(str, size, 0,
__bos(str), format, __builtin_va_arg_pack());
}
+#endif /* !defined(__clang__) */
+#if defined(__clang__)
+#define sprintf(dest, ...) __builtin___sprintf_chk(dest, 0, __bos(dest), __VA_ARGS__)
+#else
__BIONIC_FORTIFY_INLINE
__printflike(2, 3)
int sprintf(char *dest, const char *format, ...)
@@ -483,7 +488,9 @@
return __builtin___sprintf_chk(dest, 0,
__bos(dest), format, __builtin_va_arg_pack());
}
+#endif
+#if !defined(__clang__)
extern char *__fgets_real(char *, int, FILE *)
__asm__(__USER_LABEL_PREFIX__ "fgets");
__errordecl(__fgets_too_big_error, "fgets called with size bigger than buffer");
@@ -521,8 +528,10 @@
return __fgets_chk(dest, size, stream, bos);
}
+#endif /* !defined(__clang__) */
+
__END_DECLS
-#endif /* defined(__BIONIC_FORTIFY) && !defined(__clang__) */
+#endif /* defined(__BIONIC_FORTIFY) */
#endif /* _STDIO_H_ */