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git://sourceware.org/git/newlib-cygwin.git
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0751f22675
Implement basic wide char stdio functionality, based on FreeBSD.
* libc/include/stdio.h (__SORD): Define.
(__SWID): Define.
* libc/include/wchar.h: Add declarations for new wide char functions.
(getwc): Define as macro.
(getwchar): Ditto.
(putwc): Ditto.
(putwchar): Ditto.
* libc/include/sys/reent.h (struct __sFILE): Add _mbstate member.
(struct __sFILE64): Ditto.
* libc/stdio/Makefile.am (ELIX_4_SOURCES): Add fgetwc.c, fgetws.c,
fputwc.c, fputws.c, fwide.c, getwc.c, getwchar.c, putwc.c, putwchar.c
and ungetwc.c.
(CHEWOUT_FILES): Add fgetwc.def, fgetws.def, fputwc.def, fputws.def,
fwide.def, getwc.def, getwchar.def, putwc.def, putwchar.def and
ungetwc.def.
Add header dependency rules for the new files.
* libc/stdio/Makefile.in: Regenerate.
* libc/stdio/fgetwc.c: New file, implementing fgetwc and _fgetwc_r.
* libc/stdio/fgetws.c: New file, implementing fgetws and _fgetws_r.
* libc/stdio/findfp.c (std): Initialize FILE's _mbstate member.
(__sfmoreglue): Ditto.
* libc/stdio/fputs.c (_fputs_r): Set stream orientation.
* libc/stdio/fputwc.c: New file, implementing fputwc and _fputwc_r.
* libc/stdio/fputws.c: New file, implementing fputws and _fputws_r.
* libc/stdio/fread.c (_fread_r): Set stream orientation.
* libc/stdio/freopen.c (_freopen_r): Reset stream orientation. Reset
_mbstate.
* libc/stdio/fseek.c (_fseek_r): Reset _mbstate.
* libc/stdio/fwide.c: New file, implementing fwide and _fwide_r.
* libc/stdio/fwrite.c (_fwrite_r): Set stream orientation.
* libc/stdio/getwc.c: New file, implementing getwc and _getwc_r.
* libc/stdio/getwchar.c: New file, implementing getwchar and
_getwchar_r.
* libc/stdio/local.h (ORIENT): New macro.
* libc/stdio/puts.c (_puts_r): Set stream orientation.
* libc/stdio/putwc.c: New file, implementing putwc and _putwc_r.
* libc/stdio/putwchar.c: New file, implementing putwchar and
_putwchar_r.
* libc/stdio/refill.c (__srefill_r): Set stream orientation.
* libc/stdio/stdio.tex: Add documentation for new functions.
* libc/stdio/ungetc.c (_ungetc_r): Set stream orientation.
* libc/stdio/ungetwc.c: New file, implementing ungetwc and _ungetwc_r.
* libc/stdio/vfscanf.c (__SVFSCANF_R): Set stream orientation.
* libc/stdio/wbuf.c (__swbuf_r): Ditto.
129 lines
2.9 KiB
C
129 lines
2.9 KiB
C
/*
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms are permitted
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* provided that the above copyright notice and this paragraph are
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* duplicated in all such forms and that any documentation,
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* advertising materials, and other materials related to such
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* distribution and use acknowledge that the software was developed
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* by the University of California, Berkeley. The name of the
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* University may not be used to endorse or promote products derived
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* from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*/
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/* No user fns here. Pesch 15apr92. */
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#include <_ansi.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#include "local.h"
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static int
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_DEFUN(lflush, (fp),
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FILE *fp)
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{
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if ((fp->_flags & (__SLBF | __SWR)) == (__SLBF | __SWR))
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return fflush (fp);
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return 0;
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}
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/*
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* Refill a stdio buffer.
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* Return EOF on eof or error, 0 otherwise.
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*/
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int
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_DEFUN(__srefill_r, (ptr, fp),
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struct _reent * ptr _AND
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register FILE * fp)
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{
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/* make sure stdio is set up */
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CHECK_INIT (ptr, fp);
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ORIENT (fp, -1);
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fp->_r = 0; /* largely a convenience for callers */
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#ifndef __CYGWIN__
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/* SysV does not make this test; take it out for compatibility */
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if (fp->_flags & __SEOF)
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return EOF;
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#endif
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/* if not already reading, have to be reading and writing */
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if ((fp->_flags & __SRD) == 0)
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{
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if ((fp->_flags & __SRW) == 0)
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{
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ptr->_errno = EBADF;
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fp->_flags |= __SERR;
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return EOF;
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}
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/* switch to reading */
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if (fp->_flags & __SWR)
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{
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if (_fflush_r (ptr, fp))
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return EOF;
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fp->_flags &= ~__SWR;
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fp->_w = 0;
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fp->_lbfsize = 0;
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}
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fp->_flags |= __SRD;
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}
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else
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{
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/*
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* We were reading. If there is an ungetc buffer,
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* we must have been reading from that. Drop it,
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* restoring the previous buffer (if any). If there
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* is anything in that buffer, return.
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*/
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if (HASUB (fp))
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{
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FREEUB (ptr, fp);
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if ((fp->_r = fp->_ur) != 0)
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{
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fp->_p = fp->_up;
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return 0;
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}
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}
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}
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if (fp->_bf._base == NULL)
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__smakebuf_r (ptr, fp);
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/*
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* Before reading from a line buffered or unbuffered file,
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* flush all line buffered output files, per the ANSI C
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* standard.
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*/
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if (fp->_flags & (__SLBF | __SNBF))
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_CAST_VOID _fwalk (_GLOBAL_REENT, lflush);
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fp->_p = fp->_bf._base;
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fp->_r = fp->_read (ptr, fp->_cookie, (char *) fp->_p, fp->_bf._size);
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#ifndef __CYGWIN__
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if (fp->_r <= 0)
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#else
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if (fp->_r > 0)
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fp->_flags &= ~__SEOF;
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else
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#endif
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{
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if (fp->_r == 0)
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fp->_flags |= __SEOF;
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else
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{
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fp->_r = 0;
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fp->_flags |= __SERR;
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}
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return EOF;
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}
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return 0;
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}
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