newlib-cygwin/newlib/libc/stdio/viscanf.c

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/*-
* Code created by modifying iscanf.c which has following copyright.
*
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that the above copyright notice and this paragraph are
* duplicated in all such forms and that any documentation,
* advertising materials, and other materials related to such
* distribution and use acknowledge that the software was developed
* by the University of California, Berkeley. The name of the
* University may not be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
/*
FUNCTION
<<viscanf>>, <<vfiscanf>>, <<vsiscanf>>---format argument list
INDEX
viscanf
INDEX
_viscanf_r
INDEX
vfiscanf
INDEX
_vfiscanf_r
INDEX
vsiscanf
INDEX
_vsiscanf_r
ANSI_SYNOPSIS
#include <stdio.h>
#include <stdarg.h>
int viscanf(const char *<[fmt]>, va_list <[list]>);
int vfiscanf(FILE *<[fp]>, const char *<[fmt]>, va_list <[list]>);
int vsiscanf(const char *<[str]>, const char *<[fmt]>, va_list <[list]>);
int _viscanf_r(struct _reent *<[reent]>, const char *<[fmt]>,
va_list <[list]>);
int _vfiscanf_r(struct _reent *<[reent]>, FILE *<[fp]>, const char *<[fmt]>,
va_list <[list]>);
int _vsiscanf_r(struct _reent *<[reent]>, const char *<[str]>,
const char *<[fmt]>, va_list <[list]>);
TRAD_SYNOPSIS
#include <stdio.h>
#include <varargs.h>
int viscanf( <[fmt]>, <[ist]>)
char *<[fmt]>;
va_list <[list]>;
int vfiscanf( <[fp]>, <[fmt]>, <[list]>)
FILE *<[fp]>;
char *<[fmt]>;
va_list <[list]>;
int vsiscanf( <[str]>, <[fmt]>, <[list]>)
char *<[str]>;
char *<[fmt]>;
va_list <[list]>;
int _viscanf_r( <[reent]>, <[fmt]>, <[ist]>)
struct _reent *<[reent]>;
char *<[fmt]>;
va_list <[list]>;
int _vfiscanf_r( <[reent]>, <[fp]>, <[fmt]>, <[list]>)
struct _reent *<[reent]>;
FILE *<[fp]>;
char *<[fmt]>;
va_list <[list]>;
int _vsiscanf_r( <[reent]>, <[str]>, <[fmt]>, <[list]>)
struct _reent *<[reent]>;
char *<[str]>;
char *<[fmt]>;
va_list <[list]>;
DESCRIPTION
<<viscanf>>, <<vfiscanf>>, and <<vsiscanf>> are (respectively) variants
of <<iscanf>>, <<fiscanf>>, and <<siscanf>>. They differ only in
allowing their caller to pass the variable argument list as a
<<va_list>> object (initialized by <<va_start>>) rather than
directly accepting a variable number of arguments.
RETURNS
The return values are consistent with the corresponding functions:
<<viscanf>> returns the number of input fields successfully scanned,
converted, and stored; the return value does not include scanned
fields which were not stored.
If <<viscanf>> attempts to read at end-of-file, the return value
is <<EOF>>.
If no fields were stored, the return value is <<0>>.
The routines <<_viscanf_r>>, <<_vfiscanf_f>>, and <<_vsiscanf_r>> are
reentrant versions which take an additional first parameter which points to the
reentrancy structure.
PORTABILITY
These are newlib extensions.
Supporting OS subroutines required:
*/
#include <_ansi.h>
#include <reent.h>
#include <stdio.h>
#ifdef _HAVE_STDC
#include <stdarg.h>
#else
#include <varargs.h>
#endif
#include "local.h"
#ifndef _REENT_ONLY
int
_DEFUN(viscanf, (fmt, ap),
_CONST char *fmt _AND
va_list ap)
{
2005-02-07 Antony King <antony.king@st.com> * 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.
2005-02-08 09:33:19 +08:00
_REENT_SMALL_CHECK_INIT (_REENT);
return __svfiscanf_r (_REENT, _stdin_r (_REENT), fmt, ap);
}
#endif /* !_REENT_ONLY */
int
_DEFUN(_viscanf_r, (ptr, fmt, ap),
struct _reent *ptr _AND
_CONST char *fmt _AND
va_list ap)
{
2005-02-07 Antony King <antony.king@st.com> * 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.
2005-02-08 09:33:19 +08:00
_REENT_SMALL_CHECK_INIT (ptr);
return __svfiscanf_r (ptr, _stdin_r (ptr), fmt, ap);
}