Define DEFFILEMODE and friends

Define the macros ACCESSPERMS, ALLPERMS and DEFFILEMODE.
These macros originates from BSD but has been available in glibc
for quite some time.

Change-Id: I429cd30aa4e73f53b153ee7740070cebba166c57

libc/include/sys/stat.h

@@ -112,6 +112,13 @@ struct stat {
 #define  st_mtimensec  st_mtime_nsec
 #define  st_ctimensec  st_ctime_nsec
 
+#ifdef __USE_BSD
+/* Permission macros provided by glibc for compatibility with BSDs. */
+#define ACCESSPERMS (S_IRWXU | S_IRWXG | S_IRWXO) /* 0777 */
+#define ALLPERMS    (S_ISUID | S_ISGID | S_ISVTX | S_IRWXU | S_IRWXG | S_IRWXO) /* 07777 */
+#define DEFFILEMODE (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH) /* 0666 */
+#endif
+
 extern int    chmod(const char *, mode_t);
 extern int    fchmod(int, mode_t);
 extern int    mkdir(const char *, mode_t);

libc/stdio/fopen.c

@@ -31,6 +31,8 @@
  * SUCH DAMAGE.
  */
 
+#define __USE_BSD
+
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>

libc/stdio/freopen.c

@@ -31,6 +31,8 @@
  * SUCH DAMAGE.
  */
 
+#define __USE_BSD
+
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>

libc/stdio/local.h

@@ -35,10 +35,6 @@
 #include "wcio.h"
 #include "fileext.h"
 
-#ifndef DEFFILEMODE
-#define DEFFILEMODE  (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)
-#endif
-
 
 /*
  * Information local to this implementation of stdio,