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1159e0fd94
* libc/stdio/clearerr.c (clearerr): Ensure CHECK_INIT() is
called before _flockfile to prevent lock object use before
initialisation. _REENT_SMALL_CHECK_INIT() and CHECK_INIT()
take a struct _reent * instead of a FILE *.
* libc/stdio/fclose.c (_fclose_r): Ditto.
* libc/stdio/feof.c (feof): Ditto.
* libc/stdio/ferror.c (ferror): Ditto.
* libc/stdio/fflush.c (fflush): Ditto.
* libc/stdio/fgetc.c (fgetc): Ditto.
* libc/stdio/fgets.c (fgets): Ditto.
* libc/stdio/fileno.c (fileno): Ditto.
* libc/stdio/fputc.c (fputc): Ditto.
* libc/stdio/fputs.c (fputs): Ditto.
* libc/stdio/fread.c (fread): Ditto.
* libc/stdio/freopen.c (_freopen_r): Ditto.
* libc/stdio/fseek.c (_fseek_r): Ditto.
* libc/stdio/ftell.c (_ftell_r): Ditto.
* libc/stdio/fwrite.c (fwrite): Ditto.
* libc/stdio/getc.c (getc): Ditto.
* libc/stdio/getdelim.c (__getdelim): Ditto.
* libc/stdio/putc.c (putc): Ditto.
* libc/stdio/setvbuf.c (setvbuf): Ditto.
* libc/stdio/ungetc.c (_ungetc_r): Ditto.
* libc/stdio/vfprintf.c (_VFPRINTF_R): Ditto.
* libc/stdio64/freopen64.c (_freopen64_r): Ditto.
* libc/stdio64/fseeko64.c (_fseeko64_r): Ditto.
* libc/stdio64/ftello64.c (_ftello64_r): Ditto.
* libc/stdio/local.h (CHECK_INIT): Argument is now a struct
_reent * instead of a FILE * and so replace incorrect use of
_REENT with argument.
* libc/sys/arm/syscalls.c (CHECK_INIT): Ditto.
* libc/stdio/getchar.c (getchar): _REENT_SMALL_CHECK_INIT() and
CHECK_INIT() take a struct _reent * instead of a FILE *.
* libc/stdio/iprintf.c (iprintf, _iprintf_r): Ditto.
* libc/stdio/iscanf.c (iscanf, _iscanf_r): Ditto.
* libc/stdio/perror.c (perror): Ditto.
* libc/stdio/printf.c (printf, _printf_r): Ditto.
* libc/stdio/putchar.c (putchar): Ditto.
* libc/stdio/puts.c (puts): Ditto.
* libc/stdio/refill.c (__srefill): Ditto.
* libc/stdio/scanf.c (scanf, _scanf_r): Ditto.
* libc/stdio/vfscanf.c (VFSCANF, _VFSCANF_R): Ditto.
* libc/stdio/viprintf.c (viprintf, _viprintf_r): Ditto.
* libc/stdio/viscanf.c (viscanf, _viscanf_r): Ditto.
* libc/stdio/vprintf.c (vprintf, _vprintf_r): Ditto.
* libc/stdio/vscanf.c (vscanf, _vscanf_r): Ditto.
* libc/stdio/wbuf.c (__swbuf): Ditto.
* libc/stdio/wsetup.c (__swsetup): Ditto.
* libc/stdlib/mallocr.c (malloc_stats): Ditto.
* libc/stdlib/mstats.c (_mstats_r): Ditto.
* libc/include/sys/reent.h (_REENT_SMALL_CHECK_INIT): Ditto.
* libc/machine/powerpc/vfscanf.c (vfscanf): Ditto.
* libc/stdio/fgetpos.c (_fgetpos_r): Removed unnecessary calls
to _flockfile and _funlockfile; rely on locking in _ftell_r.
* libc/stdio64/fgetpos64.c (_fgetpos64_r): Ditto (_ftello64_r).
* libc/machine/powerpc/vfprintf.c (__sbprintf): Removed unnecessary
initialision of _data field in FILE structure.
* libc/machine/powerpc/vfprintf.c (VFPRINTF): Added CHECK_INIT() call.
113 lines
3.0 KiB
C
113 lines
3.0 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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<<fwrite>>---write array elements
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INDEX
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fwrite
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ANSI_SYNOPSIS
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#include <stdio.h>
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size_t fwrite(const void *<[buf]>, size_t <[size]>,
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size_t <[count]>, FILE *<[fp]>);
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TRAD_SYNOPSIS
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#include <stdio.h>
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size_t fwrite(<[buf]>, <[size]>, <[count]>, <[fp]>)
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char *<[buf]>;
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size_t <[size]>;
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size_t <[count]>;
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FILE *<[fp]>;
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DESCRIPTION
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<<fwrite>> attempts to copy, starting from the memory location
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<[buf]>, <[count]> elements (each of size <[size]>) into the file or
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stream identified by <[fp]>. <<fwrite>> may copy fewer elements than
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<[count]> if an error intervenes.
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<<fwrite>> also advances the file position indicator (if any) for
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<[fp]> by the number of @emph{characters} actually written.
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RETURNS
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If <<fwrite>> succeeds in writing all the elements you specify, the
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result is the same as the argument <[count]>. In any event, the
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result is the number of complete elements that <<fwrite>> copied to
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the file.
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PORTABILITY
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ANSI C requires <<fwrite>>.
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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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#if defined(LIBC_SCCS) && !defined(lint)
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static char sccsid[] = "%W% (Berkeley) %G%";
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#endif /* LIBC_SCCS and not lint */
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#include <_ansi.h>
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#include <stdio.h>
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#include <string.h>
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#if 0
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#include <sys/stdc.h>
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#endif
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#include "local.h"
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#if 1
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#include "fvwrite.h"
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#endif
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/*
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* Write `count' objects (each size `size') from memory to the given file.
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* Return the number of whole objects written.
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*/
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size_t
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_DEFUN(fwrite, (buf, size, count, fp),
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_CONST _PTR buf _AND
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size_t size _AND
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size_t count _AND
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FILE * fp)
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{
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size_t n;
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struct __suio uio;
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struct __siov iov;
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iov.iov_base = buf;
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uio.uio_resid = iov.iov_len = n = count * size;
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uio.uio_iov = &iov;
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uio.uio_iovcnt = 1;
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/*
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* The usual case is success (__sfvwrite returns 0);
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* skip the divide if this happens, since divides are
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* generally slow and since this occurs whenever size==0.
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*/
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CHECK_INIT(_REENT);
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_flockfile (fp);
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if (__sfvwrite (fp, &uio) == 0)
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{
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_funlockfile (fp);
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return count;
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}
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_funlockfile (fp);
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return (n - uio.uio_resid) / size;
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}
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