X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Ffbufmode.c;h=1a324320668cd6745197e4fd125319e27673a569;hb=cd56634a4a8179fd5a4419fbb3e27211b042ab1c;hp=15b7ca07405a2ac97cc9370438921e5f3466cd51;hpb=57fdfd3f8ec62b105c53bcdf6f127c35c7fe7391;p=gnulib.git

diff --git a/lib/fbufmode.c b/lib/fbufmode.c
index 15b7ca074..1a3243206 100644
--- a/lib/fbufmode.c
+++ b/lib/fbufmode.c
@@ -1,5 +1,5 @@
 /* Retrieve information about a FILE stream.
-   Copyright (C) 2007 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
@@ -23,13 +23,15 @@
 # include <stdio_ext.h>
 #endif
 
+#include "stdio-impl.h"
+
 int
 fbufmode (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 */
 # if HAVE___FLBF                    /* glibc >= 2.2 */
   if (__flbf (fp))
     return _IOLBF;
@@ -40,13 +42,17 @@ fbufmode (FILE *fp)
   if (fp->_flags & _IO_UNBUFFERED)
     return _IONBF;
   return _IOFBF;
-#elif defined __sferror             /* FreeBSD, NetBSD, OpenBSD, MacOS X, Cygwin */
-  if (fp->_flags & __SLBF)
+#elif defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin */
+  if (fp_->_flags & __SLBF)
     return _IOLBF;
-  if (fp->_flags & __SNBF)
+  if (fp_->_flags & __SNBF)
     return _IONBF;
   return _IOFBF;
-#elif defined _IOERR                /* AIX, HP-UX, IRIX, OSF/1, Solaris, mingw */
+#elif defined __EMX__               /* emx+gcc */
+  return fp->_flags & (_IOLBF | _IONBF | _IOFBF);
+#elif defined __minix               /* Minix */
+  return fp->_flags & (_IOLBF | _IONBF | _IOFBF);
+#elif defined _IOERR                /* AIX, HP-UX, IRIX, OSF/1, Solaris, OpenServer, mingw, NonStop Kernel */
 # if HAVE___FLBF                    /* Solaris >= 7 */
   if (__flbf (fp))
     return _IOLBF;
@@ -54,20 +60,9 @@ fbufmode (FILE *fp)
   if (fp->_flag & _IOLBF)
     return _IOLBF;
 # endif
-# if defined __sun && defined _LP64 /* Solaris/{SPARC,AMD64} 64-bit */
-#  define fp_ ((struct { unsigned char *_ptr; \
-			 unsigned char *_base; \
-			 unsigned char *_end; \
-			 long _cnt; \
-			 int _file; \
-			 unsigned int _flag; \
-		       } *) fp)
-  return fp_->_flag & (_IONBF | _IOFBF);
-# else
-  if (fp->_flag & _IONBF)
+  if (fp_->_flag & _IONBF)
     return _IONBF;
   return _IOFBF;
-# endif
 #elif defined __UCLIBC__            /* uClibc */
   if (fp->__modeflags & __FLAG_LBF)
     return _IOLBF;
@@ -75,12 +70,26 @@ fbufmode (FILE *fp)
     return _IONBF;
   return _IOFBF;
 #elif defined __QNX__               /* QNX */
-  if (fp->_Mode & _MLBF)
+  if (fp->_Mode & 0x400 /* _MLBF */)
     return _IOLBF;
-  if (fp->_Mode & _MNBF)
+  if (fp->_Mode & 0x800 /* _MNBF */)
     return _IONBF;
   return _IOFBF;
+#elif defined __MINT__              /* Atari FreeMiNT */
+  if (fp->__linebuf)
+    return _IOLBF;
+  return (fp->__bufsize > 0 ? _IOFBF : _IONBF);
+#elif HAVE___FLBF && HAVE___FBUFSIZE /* musl libc */
+  if (__flbf (fp))
+    return _IOLBF;
+  return (__fbufsize (fp) > 0 ? _IOFBF : _IONBF);
+#elif defined EPLAN9                /* Plan9 */
+  if (fp->flags & 2 /* LINEBUF */)
+    return _IOLBF;
+  if (fp->bufl)
+    return _IOFBF;
+  return _IONBF;
 #else
- #error "Please port gnulib fbufmode.c to your platform! Look at the setvbuf implementation."
+# error "Please port gnulib fbufmode.c to your platform! Look at the setvbuf implementation."
 #endif
 }