/* An fseeko() function that, together with fflush(), is POSIX compliant.
- Copyright (C) 2007-2008 Free Software Foundation, Inc.
+ Copyright (C) 2007-2009 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
&& ((fp->__modeflags & (__FLAG_READONLY | __FLAG_READING)) == 0
|| fp->__bufpos == fp->__bufread))
#elif defined __QNX__ /* QNX */
- if ((fp->_Mode & _MWRITE ? fp->_Next == fp->_Buf : fp->_Next == fp->_Rend)
+ if ((fp->_Mode & 0x2000 /* _MWRITE */ ? fp->_Next == fp->_Buf : fp->_Next == fp->_Rend)
&& fp->_Rback == fp->_Back + sizeof (fp->_Back)
&& fp->_Rsave == NULL)
+#elif defined __MINT__ /* Atari FreeMiNT */
+ if (fp->__bufp == fp->__buffer
+ && fp->__get_limit == fp->__bufp
+ && fp->__put_limit == fp->__bufp
+ && !fp->__pushed_back)
#else
#error "Please port gnulib fseeko.c to your platform! Look at the code in fpurge.c, then report this to bug-gnulib."
#endif
{
- off_t pos = lseek (fileno (fp), offset, whence);
+ /* We get here when an fflush() call immediately preceded this one. We
+ know there are no buffers.
+ POSIX requires us to modify the file descriptor's position.
+ But we cannot position beyond end of file here. */
+ off_t pos =
+ lseek (fileno (fp),
+ whence == SEEK_END && offset > 0 ? 0 : offset,
+ whence);
if (pos == -1)
{
#if defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, MacOS X, Cygwin */
#endif
return -1;
}
- else
- {
-#if defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, MacOS X, Cygwin */
- fp_->_offset = pos;
- fp_->_flags |= __SOFF;
- fp_->_flags &= ~__SEOF;
+
+#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
+ fp->_flags &= ~_IO_EOF_SEEN;
+#elif defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, MacOS X, Cygwin */
+ fp_->_offset = pos;
+ fp_->_flags |= __SOFF;
+ fp_->_flags &= ~__SEOF;
#elif defined __EMX__ /* emx+gcc */
- fp->_flags &= ~_IOEOF;
+ fp->_flags &= ~_IOEOF;
#elif defined _IOERR /* AIX, HP-UX, IRIX, OSF/1, Solaris, OpenServer, mingw */
- fp->_flag &= ~_IOEOF;
+ fp->_flag &= ~_IOEOF;
+#elif defined __MINT__ /* Atari FreeMiNT */
+ fp->__offset = pos;
+ fp->__eof = 0;
#endif
- return 0;
- }
+ /* If we were not requested to position beyond end of file, we're
+ done. */
+ if (!(whence == SEEK_END && offset > 0))
+ return 0;
}
- else
- return fseeko (fp, offset, whence);
+ return fseeko (fp, offset, whence);
}