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e5e148d15b
* libc/include/stdio.h[_REENT_SMALL]: Do not allow macros
for clearerr, feof, or fileno.
* libc/include/sys/reent.h[_REENT_SMALL](struct _reent): Change
the dummy std stream scheme to use pointers to const external
fake files, one for each standard stream.
* libc/stdio/local.h (CHECK_INIT): Change to take a file pointer
argument. For _REENT_SMALL, reset the file pointer if it
matches one of the fake std stream pointers.
* libc/stdio/clearerr.c: Fix CHECK_INIT macro to add file pointer
argument.
* libc/stdio/fclose.c: Ditto.
* libc/stdio/feof.c: Ditto.
* libc/stdio/ferror.c: Ditto.
* libc/stdio/fflush.c: Ditto.
* libc/stdio/fgetc.c: Ditto.
* libc/stdio/fgets.c: Ditto.
* libc/stdio/fileno.c: Ditto.
* libc/stdio/findfp.c: Ditto.
* libc/stdio/fputc.c: Ditto.
* libc/stdio/fputs.c: Ditto.
* libc/stdio/fread.c: Ditto.
* libc/stdio/freopen.c: Ditto.
* libc/stdio/fseek.c: Ditto.
* libc/stdio/ftell.c: Ditto.
* libc/stdio/fwrite.c: Ditto.
* libc/stdio/getc.c: Ditto.
* libc/stdio/getdelim.c: Ditto.
* libc/stdio/putc.c: Ditto.
* libc/stdio/refill.c: Ditto.
* libc/stdio/setvbuf.c: Ditto.
* libc/stdio/ungetc.c: Ditto.
* libc/stdio/vfprintf.c: Ditto.
* libc/stdio/vfscanf.c: Ditto.
* libc/stdio/wbuf.c: Ditto.: Ditto.
* libc/stdio/wsetup.c: Ditto.
* libc/stdio64/freopen64.c: Ditto.
* libc/stdio64/fseeko64.c: Ditto.
* libc/stdio64/ftello64.c: Ditto.
* libc/machine/powerpc/vfprintf.c: Ditto.
* libc/machine/powerpc/vfscanf.c: Ditto.
110 lines
2.9 KiB
C
110 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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/*
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FUNCTION
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<<fputc>>---write a character on a stream or file
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INDEX
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fputc
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INDEX
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_fputc_r
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ANSI_SYNOPSIS
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#include <stdio.h>
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int fputc(int <[ch]>, FILE *<[fp]>);
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#include <stdio.h>
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int _fputc_r(struct _rent *<[ptr]>, int <[ch]>, FILE *<[fp]>);
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TRAD_SYNOPSIS
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#include <stdio.h>
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int fputc(<[ch]>, <[fp]>)
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int <[ch]>;
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FILE *<[fp]>;
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#include <stdio.h>
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int _fputc_r(<[ptr]>, <[ch]>, <[fp]>)
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struct _reent *<[ptr]>;
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int <[ch]>;
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FILE *<[fp]>;
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DESCRIPTION
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<<fputc>> converts the argument <[ch]> from an <<int>> to an
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<<unsigned char>>, then writes it to the file or stream identified by
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<[fp]>.
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If the file was opened with append mode (or if the stream cannot
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support positioning), then the new character goes at the end of the
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file or stream. Otherwise, the new character is written at the
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current value of the position indicator, and the position indicator
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oadvances by one.
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For a macro version of this function, see <<putc>>.
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The <<_fputc_r>> function is simply a reentrant version of <<fputc>>
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that takes an additional reentrant structure argument: <[ptr]>.
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RETURNS
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If successful, <<fputc>> returns its argument <[ch]>. If an error
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intervenes, the result is <<EOF>>. You can use `<<ferror(<[fp]>)>>' to
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query for errors.
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PORTABILITY
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<<fputc>> is required by ANSI C.
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Supporting OS subroutines required: <<close>>, <<fstat>>, <<isatty>>,
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<<lseek>>, <<read>>, <<sbrk>>, <<write>>.
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*/
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#include <_ansi.h>
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#include <stdio.h>
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#include "local.h"
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int
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_DEFUN(_fputc_r, (ptr, ch, file),
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struct _reent *ptr _AND
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int ch _AND
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FILE * file)
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{
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int result;
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CHECK_INIT(ptr, file);
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_flockfile (file);
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result = _putc_r (ptr, ch, file);
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_funlockfile (file);
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return result;
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}
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#ifndef _REENT_ONLY
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int
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_DEFUN(fputc, (ch, file),
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int ch _AND
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FILE * file)
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{
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#if !defined(__OPTIMIZE_SIZE__) && !defined(PREFER_SIZE_OVER_SPEED)
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int result;
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CHECK_INIT(_REENT, file);
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_flockfile (file);
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result = _putc_r (_REENT, ch, file);
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_funlockfile (file);
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return result;
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#else
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return _fputc_r (_REENT, ch, file);
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#endif
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}
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#endif /* !_REENT_ONLY */
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