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-rw-r--r--lib/fpurge.c137
1 files changed, 0 insertions, 137 deletions
diff --git a/lib/fpurge.c b/lib/fpurge.c
deleted file mode 100644
index 5c53ee763..000000000
--- a/lib/fpurge.c
+++ /dev/null
@@ -1,137 +0,0 @@
-/* Flushing buffers of a FILE stream.
- Copyright (C) 2007-2011 Free Software Foundation, Inc.
-
- This program is free software: you can redistribute it and/or modify
- it under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>. */
-
-#include <config.h>
-
-/* Specification. */
-#include <stdio.h>
-
-#if HAVE___FPURGE /* glibc >= 2.2, Haiku, Solaris >= 7 */
-# include <stdio_ext.h>
-#endif
-#include <stdlib.h>
-
-#include "stdio-impl.h"
-
-int
-fpurge (FILE *fp)
-{
-#if HAVE___FPURGE /* glibc >= 2.2, Haiku, Solaris >= 7 */
-
- __fpurge (fp);
- /* The __fpurge function does not have a return value. */
- return 0;
-
-#elif HAVE_FPURGE /* FreeBSD, NetBSD, OpenBSD, DragonFly, MacOS X, Cygwin 1.7 */
-
- /* Call the system's fpurge function. */
-# undef fpurge
-# if !HAVE_DECL_FPURGE
- extern int fpurge (FILE *);
-# endif
- int result = fpurge (fp);
-# if defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, MacOS X, Cygwin */
- if (result == 0)
- /* Correct the invariants that fpurge broke.
- <stdio.h> on BSD systems says:
- "The following always hold: if _flags & __SRD, _w is 0."
- If this invariant is not fulfilled and the stream is read-write but
- currently reading, subsequent putc or fputc calls will write directly
- into the buffer, although they shouldn't be allowed to. */
- if ((fp_->_flags & __SRD) != 0)
- fp_->_w = 0;
-# endif
- return result;
-
-#else
-
- /* 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_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
- fp->_IO_read_end = fp->_IO_read_ptr;
- fp->_IO_write_ptr = fp->_IO_write_base;
- /* Avoid memory leak when there is an active ungetc buffer. */
- if (fp->_IO_save_base != NULL)
- {
- free (fp->_IO_save_base);
- fp->_IO_save_base = NULL;
- }
- return 0;
-# elif defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, MacOS X, Cygwin */
- 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);
- /* Avoid memory leak when there is an active ungetc buffer. */
- if (fp_ub._base != NULL)
- {
- if (fp_ub._base != fp_->_ubuf)
- free (fp_ub._base);
- fp_ub._base = NULL;
- }
- return 0;
-# elif defined __EMX__ /* emx+gcc */
- fp->_ptr = fp->_buffer;
- fp->_rcount = 0;
- fp->_wcount = 0;
- fp->_ungetc_count = 0;
- return 0;
-# elif defined _IOERR /* AIX, HP-UX, IRIX, OSF/1, Solaris, OpenServer, mingw, NonStop Kernel */
- fp->_ptr = fp->_base;
- if (fp->_ptr != NULL)
- fp->_cnt = 0;
- return 0;
-# elif defined __UCLIBC__ /* uClibc */
-# ifdef __STDIO_BUFFERS
- if (fp->__modeflags & __FLAG_WRITING)
- fp->__bufpos = fp->__bufstart;
- else if (fp->__modeflags & (__FLAG_READONLY | __FLAG_READING))
- fp->__bufpos = fp->__bufread;
-# endif
- return 0;
-# elif defined __QNX__ /* QNX */
- fp->_Rback = fp->_Back + sizeof (fp->_Back);
- fp->_Rsave = NULL;
- if (fp->_Mode & 0x2000 /* _MWRITE */)
- /* fp->_Buf <= fp->_Next <= fp->_Wend */
- fp->_Next = fp->_Buf;
- else
- /* fp->_Buf <= fp->_Next <= fp->_Rend */
- fp->_Rend = fp->_Next;
- return 0;
-# elif defined __MINT__ /* Atari FreeMiNT */
- if (fp->__pushed_back)
- {
- fp->__bufp = fp->__pushback_bufp;
- fp->__pushed_back = 0;
- }
- /* Preserve the current file position. */
- if (fp->__target != -1)
- fp->__target += fp->__bufp - fp->__buffer;
- fp->__bufp = fp->__buffer;
- /* Nothing in the buffer, next getc is nontrivial. */
- fp->__get_limit = fp->__bufp;
- /* Nothing in the buffer, next putc is nontrivial. */
- fp->__put_limit = fp->__buffer;
- return 0;
-# else
-# error "Please port gnulib fpurge.c to your platform! Look at the definitions of fflush, setvbuf and ungetc on your system, then report this to bug-gnulib."
-# endif
-
-#endif
-}