/* An fseeko() function that, together with fflush(), is POSIX compliant.
- Copyright (C) 2007-2009 Free Software Foundation, Inc.
+ Copyright (C) 2007-2010 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
if ((fp->_flags & __SL64) == 0)
{
/* Cygwin 1.5.0 through 1.5.24 failed to open stdin in 64-bit
- mode; but has an fseeko that requires 64-bit mode. */
+ mode; but has an fseeko that requires 64-bit mode. */
FILE *tmp = fopen ("/dev/null", "r");
if (!tmp)
- return -1;
+ return -1;
fp->_flags |= __SL64;
fp->_seek64 = tmp->_seek64;
fclose (tmp);
if (fp_->_p == fp_->_bf._base
&& fp_->_r == 0
&& fp_->_w == ((fp_->_flags & (__SLBF | __SNBF | __SRD)) == 0 /* fully buffered and not currently reading? */
- ? fp_->_bf._size
- : 0)
+ ? fp_->_bf._size
+ : 0)
&& fp_ub._base == NULL)
#elif defined __EMX__ /* emx+gcc */
if (fp->_ptr == fp->_buffer
if (((fp->__modeflags & __FLAG_WRITING) == 0
|| fp->__bufpos == fp->__bufstart)
&& ((fp->__modeflags & (__FLAG_READONLY | __FLAG_READING)) == 0
- || fp->__bufpos == fp->__bufread))
+ || 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 */
#endif
{
/* 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. */
+ 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);
+ 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 */
- fp_->_flags &= ~__SOFF;
+ fp_->_flags &= ~__SOFF;
#endif
- return -1;
- }
+ return -1;
+ }
#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 */
+# if defined __CYGWIN__
+ /* fp_->_offset is typed as an integer. */
fp_->_offset = pos;
+# else
+ /* fp_->_offset is an fpos_t. */
+ {
+ /* Use a union, since on NetBSD, the compilation flags
+ determine whether fpos_t is typedef'd to off_t or a struct
+ containing a single off_t member. */
+ union
+ {
+ fpos_t f;
+ off_t o;
+ } u;
+ u.o = pos;
+ fp_->_offset = u.f;
+ }
+# endif
fp_->_flags |= __SOFF;
fp_->_flags &= ~__SEOF;
#elif defined __EMX__ /* emx+gcc */
fp->_flags &= ~_IOEOF;
#elif defined _IOERR /* AIX, HP-UX, IRIX, OSF/1, Solaris, OpenServer, mingw */
fp->_flag &= ~_IOEOF;
+#elif defined __MINT__ /* Atari FreeMiNT */
+ fp->__offset = pos;
+ fp->__eof = 0;
#endif
/* If we were not requested to position beyond end of file, we're
- done. */
+ done. */
if (!(whence == SEEK_END && offset > 0))
- return 0;
+ return 0;
}
return fseeko (fp, offset, whence);
}