maint: update copyright

[gnulib.git] / lib / fwriting.c

diff --git a/lib/fwriting.c b/lib/fwriting.c
index 2ad0d6c..bf13278 100644 (file)
--- a/lib/fwriting.c
+++ b/lib/fwriting.c
@@ -1,5 +1,5 @@
 /* Retrieve information about a FILE stream.
-   Copyright (C) 2007-2008 Free Software Foundation, Inc.
+   Copyright (C) 2007-2014 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -19,29 +19,44 @@
 /* Specification.  */
 #include "fwriting.h"
 
+#include "stdio-impl.h"
+
 bool
 fwriting (FILE *fp)
 {
   /* Most systems provide FILE as a struct and the necessary bitmask in
      <stdio.h>, because they need it for implementing getc() and putc() as
      fast macros.  */
-#if defined _IO_ferror_unlocked     /* GNU libc, BeOS */
+#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
   return (fp->_flags & (_IO_NO_READS | _IO_CURRENTLY_PUTTING)) != 0;
-#elif defined __sferror             /* FreeBSD, NetBSD, OpenBSD, MacOS X, Cygwin */
-  return (fp->_flags & __SWR) != 0;
+#elif defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin */
+  return (fp_->_flags & __SWR) != 0;
 #elif defined __EMX__               /* emx+gcc */
   return (fp->_flags & _IOWRT) != 0;
-#elif defined _IOERR                /* AIX, HP-UX, IRIX, OSF/1, Solaris, OpenServer, mingw */
-# if defined _SCO_DS                /* OpenServer */
-#  define _flag __flag
-# endif
+#elif defined __minix               /* Minix */
+  return (fp->_flags & _IOWRITING) != 0;
+#elif defined _IOERR                /* AIX, HP-UX, IRIX, OSF/1, Solaris, OpenServer, mingw, NonStop Kernel */
   return (fp->_flag & _IOWRT) != 0;
 #elif defined __UCLIBC__            /* uClibc */
   return (fp->__modeflags & __FLAG_WRITING) != 0;
 #elif defined __QNX__               /* QNX */
   return ((fp->_Mode & 0x1 /* _MOPENR */) == 0
-         || (fp->_Mode & 0x2000 /* _MWRITE */) != 0);
+          || (fp->_Mode & 0x2000 /* _MWRITE */) != 0);
+#elif defined __MINT__              /* Atari FreeMiNT */
+  if (!fp->__mode.__read)
+    return 1;
+  if (!fp->__mode.__write)
+    return 0;
+# ifdef _IO_CURRENTLY_PUTTING /* Flag added on 2009-02-28 */
+  return (fp->__flags & _IO_CURRENTLY_PUTTING) != 0;
+# else
+  return (fp->__buffer < fp->__put_limit /*|| fp->__bufp == fp->__get_limit ??*/);
+# endif
+#elif defined EPLAN9                /* Plan9 */
+  if (fp->state == 0 /* CLOSED */ || fp->state == 3 /* RD */)
+    return 0;
+  return (fp->state == 4 /* WR */ && (fp->bufl == 0 || fp->wp < fp->rp));
 #else
- #error "Please port gnulib fwriting.c to your platform!"
+# error "Please port gnulib fwriting.c to your platform!"
 #endif
 }