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doc: Improve wording in relocatable-maint.texi.
[gnulib.git]
/
lib
/
fwritable.c
diff --git
a/lib/fwritable.c
b/lib/fwritable.c
index
691ddc5
..
0b53927
100644
(file)
--- a/
lib/fwritable.c
+++ b/
lib/fwritable.c
@@
-1,5
+1,5
@@
/* Retrieve information about a FILE stream.
/* Retrieve information about a FILE stream.
- Copyright (C) 2007-20
08
Free Software Foundation, Inc.
+ Copyright (C) 2007-20
13
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
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
@@
-21,23
+21,43
@@
#include "stdio-impl.h"
#include "stdio-impl.h"
+#if defined EPLAN9 /* Plan9 */
+# include <fcntl.h>
+#endif
+
bool
fwritable (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. */
bool
fwritable (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_f
error_unlocked || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS
, Linux libc5 */
+#if defined _IO_f
trylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku
, Linux libc5 */
return (fp->_flags & _IO_NO_WRITES) == 0;
return (fp->_flags & _IO_NO_WRITES) == 0;
-#elif defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, MacOS X, Cygwin */
+#elif defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac
OS X, Cygwin */
return (fp_->_flags & (__SRW | __SWR)) != 0;
#elif defined __EMX__ /* emx+gcc */
return (fp->_flags & (_IORW | _IOWRT)) != 0;
return (fp_->_flags & (__SRW | __SWR)) != 0;
#elif defined __EMX__ /* emx+gcc */
return (fp->_flags & (_IORW | _IOWRT)) != 0;
-#elif defined _IOERR /* AIX, HP-UX, IRIX, OSF/1, Solaris, OpenServer, mingw */
+#elif defined __minix /* Minix */
+ return (fp->_flags & _IOWRITE) != 0;
+#elif defined _IOERR /* AIX, HP-UX, IRIX, OSF/1, Solaris, OpenServer, mingw, NonStop Kernel */
return (fp->_flag & (_IORW | _IOWRT)) != 0;
#elif defined __QNX__ /* QNX */
return (fp->_Mode & 0x2 /* _MOPENW */) != 0;
return (fp->_flag & (_IORW | _IOWRT)) != 0;
#elif defined __QNX__ /* QNX */
return (fp->_Mode & 0x2 /* _MOPENW */) != 0;
+#elif defined __MINT__ /* Atari FreeMiNT */
+ return fp->__mode.__write;
+#elif defined EPLAN9 /* Plan9 */
+ int fd = fp->fd;
+ if (fd >= 0)
+ {
+ int flags = fcntl (fd, F_GETFL, NULL);
+ if (flags >= 0)
+ {
+ flags &= O_ACCMODE;
+ return (flags == O_WRONLY || flags == O_RDWR);
+ }
+ }
+ return 0;
#else
#else
-
#
error "Please port gnulib fwritable.c to your platform! Look at the definition of fopen, fdopen on your system, then report this to bug-gnulib."
+
#
error "Please port gnulib fwritable.c to your platform! Look at the definition of fopen, fdopen on your system, then report this to bug-gnulib."
#endif
}
#endif
}