1 files changed, 41 insertions, 0 deletions
diff --git a/newlib/libc/include/stdio_ext.h b/newlib/libc/include/stdio_ext.h
index fcfb662a0..a830c8815 100644
--- a/newlib/libc/include/stdio_ext.h
+++ b/newlib/libc/include/stdio_ext.h
@@ -17,6 +17,47 @@ _BEGIN_STD_C
 
 void	 _EXFUN(__fpurge,(FILE *));
 
+/* TODO:
+
+   void _flushlbf (void);
+   int __fsetlocking (FILE *__fp, int __type);
+*/
+
+#ifdef  __GNUC__
+
+_ELIDABLE_INLINE inline size_t
+__fbufsize (FILE *__fp) { return (size_t) __fp->_bf._size; }
+
+_ELIDABLE_INLINE inline int
+__freading (FILE *__fp) { return (__fp->_flags & __SRD) != 0; }
+
+_ELIDABLE_INLINE inline int
+__fwriting (FILE *__fp) { return (__fp->_flags & __SWR) != 0; }
+
+_ELIDABLE_INLINE inline int
+__freadable (FILE *__fp) { return (__fp->_flags & (__SRD | __SRW)) != 0; }
+
+_ELIDABLE_INLINE inline int
+__fwriteable (FILE *__fp) { return (__fp->_flags & (__SWR | __SRW)) != 0; }
+
+_ELIDABLE_INLINE inline int
+__flbf (FILE *__fp) { return (__fp->_flags & __SLBF) != 0; }
+
+_ELIDABLE_INLINE inline size_t
+__fpending (FILE *__fp) { return __fp->_p - __fp->_bf._base; }
+
+#else
+
+#define __fbufsize(__fp) ((size_t) (__fp)->_bf._size)
+#define __freading(__fp) (((__fp)->_flags & __SRD) != 0)
+#define __fwriting(__fp) (((__fp)->_flags & __SWR) != 0)
+#define __freadable(__fp) (((__fp)->_flags & (__SRD | __SRW)) != 0)
+#define __fwriteable(__fp) (((__fp)->_flags & (__SWR | __SRW)) != 0)
+#define __flbf(__fp) (((__fp)->_flags & __SLBF) != 0)
+#define __fpending(__fp) ((size_t) ((__fp)->_p - (__fp)->_bf._base))
+
+#endif /* __GNUC__ */
+
 _END_STD_C
 
 #endif /* _STDIO_EXT_H_ */