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/***
*mbsncpy.c - Copy one string to another, n chars only (MBCS)
*
* Copyright (c) 1985-1993, Microsoft Corporation. All rights reserved.
*
*Purpose:
* Copy one string to another, n chars only (MBCS)
*
*Revision History:
* 11-19-92 KRS Ported from 16-bit sources.
* 08-03-93 KRS Fix logic bug.
*
*******************************************************************************/
#ifdef _MBCS
#include <cruntime.h>
#include <mbdata.h>
#include <mbctype.h>
#include <mbstring.h>
/***
* _mbsncpy - Copy one string to another, n chars only (MBCS)
*
*Purpose:
* Copies exactly cnt character from src to dst. If strlen(src) < cnt, the
* remaining character are padded with null bytes. If strlen >= cnt, no
* terminating null byte is added. 2-byte MBCS characters are handled
* correctly.
*
*Entry:
* unsigned char *dst = destination for copy
* unsigned char *src = source for copy
* int cnt = number of characters to copy
*
*Exit:
* returns dst = destination of copy
*
*Exceptions:
*
*******************************************************************************/
unsigned char * _CRTAPI1 _mbsncpy(dst, src, cnt)
unsigned char *dst;
const unsigned char *src;
size_t cnt;
{
unsigned char *start = dst;
while (cnt) {
cnt--;
if (_ISLEADBYTE(*src)) {
*dst++ = *src++;
if ((*dst++ = *src++) == '\0') {
dst[-2] = '\0';
break;
}
}
else
if ((*dst++ = *src++) == '\0')
break;
}
/* pad with nulls as needed */
while (cnt--)
*dst++ = '\0';
return start;
}
#endif /* _MBCS */
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