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add _mbsnbcpy_s to msvcrt (imported from wine)

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svn path=/trunk/; revision=39014
This commit is contained in:
Christoph von Wittich 2009-01-22 14:41:57 +00:00
parent bcccb1d084
commit 969279fc8a
3 changed files with 67 additions and 0 deletions
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2
reactos/dll/win32/msvcrt/msvcrt.def
View file

@ -847,4 +847,6 @@ EXPORTS
wprintf @841
wscanf @842
_mbsnbcpy_s
_swprintf=swprintf

1
reactos/include/crt/mbstring.h
View file

@ -75,6 +75,7 @@ extern "C" {
_CRTIMP size_t __cdecl _mbsnbcnt(const unsigned char *_Str,size_t _MaxCount);
_CRTIMP size_t __cdecl _mbsnbcnt_l(const unsigned char *_Str,size_t _MaxCount,_locale_t _Locale);
_CRTIMP unsigned char *__cdecl _mbsnbcpy(unsigned char *_Dest,const unsigned char *_Source,size_t _Count);
_CRTIMP int __cdecl _mbsnbcpy_s(unsigned char* dst, size_t size, const unsigned char* src, size_t n);
_CRTIMP unsigned char *__cdecl _mbsnbcpy_l(unsigned char *_Dest,const unsigned char *_Source,size_t _Count,_locale_t _Locale);
_CRTIMP int __cdecl _mbsnbicmp(const unsigned char *_Str1,const unsigned char *_Str2,size_t _MaxCount);
_CRTIMP int __cdecl _mbsnbicmp_l(const unsigned char *_Str1,const unsigned char *_Str2,size_t _MaxCount,_locale_t _Locale);

64
reactos/lib/sdk/crt/mbstring/mbsncpy.c
View file

@ -10,6 +10,7 @@
*
*/
#include <precomp.h>
#include <mbstring.h>
extern int g_mbcp_is_multibyte;
@ -91,3 +92,66 @@ unsigned char * _mbsnbcpy(unsigned char *dst, const unsigned char *src, size_t n
while (n--) *dst++ = 0;
return ret;
}
/*
* Unlike _mbsnbcpy this function does not pad the rest of the dest
* string with 0
*/
int CDECL _mbsnbcpy_s(unsigned char* dst, size_t size, const unsigned char* src, size_t n)
{
size_t pos = 0;
if(!dst || size == 0)
return EINVAL;
if(!src)
{
dst[0] = '\0';
return EINVAL;
}
if(!n)
return 0;
if(g_mbcp_is_multibyte)
{
int is_lead = 0;
while (*src && n)
{
if(pos == size)
{
dst[0] = '\0';
return ERANGE;
}
is_lead = (!is_lead && _ismbblead(*src));
n--;
dst[pos++] = *src++;
}
if (is_lead) /* if string ends with a lead, remove it */
dst[pos - 1] = 0;
}
else
{
while (n)
{
n--;
if(pos == size)
{
dst[0] = '\0';
return ERANGE;
}
if(!(*src)) break;
dst[pos++] = *src++;
}
}
if(pos < size)
dst[pos] = '\0';
else
{
dst[0] = '\0';
return ERANGE;
}
return 0;
}