/*****************************************************************************/
/*  SPRINTF.C v7.4.24                                                        */
/*                                                                           */
/* Copyright (c) 1995-2018 Texas Instruments Incorporated                    */
/* http://www.ti.com/                                                        */
/*                                                                           */
/*  Redistribution and  use in source  and binary forms, with  or without    */
/*  modification,  are permitted provided  that the  following conditions    */
/*  are met:                                                                 */
/*                                                                           */
/*     Redistributions  of source  code must  retain the  above copyright    */
/*     notice, this list of conditions and the following disclaimer.         */
/*                                                                           */
/*     Redistributions in binary form  must reproduce the above copyright    */
/*     notice, this  list of conditions  and the following  disclaimer in    */
/*     the  documentation  and/or   other  materials  provided  with  the    */
/*     distribution.                                                         */
/*                                                                           */
/*     Neither the  name of Texas Instruments Incorporated  nor the names    */
/*     of its  contributors may  be used to  endorse or  promote products    */
/*     derived  from   this  software  without   specific  prior  written    */
/*     permission.                                                           */
/*                                                                           */
/*  THIS SOFTWARE  IS PROVIDED BY THE COPYRIGHT  HOLDERS AND CONTRIBUTORS    */
/*  "AS IS"  AND ANY  EXPRESS OR IMPLIED  WARRANTIES, INCLUDING,  BUT NOT    */
/*  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR    */
/*  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT    */
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/*  SPECIAL,  EXEMPLARY,  OR CONSEQUENTIAL  DAMAGES  (INCLUDING, BUT  NOT    */
/*  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,    */
/*  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY    */
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/*  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE    */
/*  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.     */
/*                                                                           */
/*****************************************************************************/

/*****************************************************************************/
/* Functions:                                                                */
/*    SPRINTF  -  Copy formatted output to a string                          */
/*    _OUTC    -  Put a character in a string                                */
/*    _OUTS    -  Append a string to another string                          */
/*****************************************************************************/
#include <stdio.h>
#include <format.h>
#include <stdarg.h>
#include <string.h>

extern _CODE_ACCESS int _printfi(char **_format, va_list _ap, void *_op,
		                 int (*_outc)(char, void *), 
				 int (*_outs)(char *, void *,int));

static int _outc(char c, void *_op);
static int _outs(char *s, void *_op, int len);

/*****************************************************************************/
/* SPRINTF  -  Copy formatted output to a string                             */
/*                                                                           */
/*    This function passes a format string and an argument list to           */
/*    _PRINTFI, and writes the result string to the string _STRING.          */
/*                                                                           */
/*****************************************************************************/
_CODE_ACCESS int sprintf(char *_string, const char *_format, ...)
{
    va_list _ap;
    int   rval;
    char *fptr = (char *)_format;
    char *out_end = _string;

    va_start(_ap, _format);
    rval = _printfi(&fptr, _ap, (void *)&out_end, _outc, _outs);
    va_end(_ap);
    
    *out_end = '\0';

    return (rval);
}

/*****************************************************************************/
/* _OUTC -  Put a character in a string                                      */
/*****************************************************************************/
static int _outc(char c, void *_op)
{
    return *(*((char **)_op))++ = c;
}

/*****************************************************************************/
/* _OUTS -  Append a string to another string                                */
/*****************************************************************************/
static int _outs(char *s, void *_op, int len)
{
    memcpy(*((char **)_op), s, len);
    *((char **)_op) += len;
    return len;
}
