1 files changed, 64 insertions, 0 deletions

diff --git a/private/crt32/mbstring/mbsbtype.c b/private/crt32/mbstring/mbsbtype.c
new file mode 100644
index 000000000..cd87b273a
--- /dev/null
+++ b/private/crt32/mbstring/mbsbtype.c
@@ -0,0 +1,64 @@
+/*** 
+*mbsbtype.c - Return type of byte within a string (MBCS)
+*
+*	Copyright (c) 1985-1992, Microsoft Corporation.  All rights reserved.
+*
+*Purpose:
+*	Return type of byte within a string (MBCS)
+*
+*Revision History:
+*	11-19-92  KRS	Ported from 16-bit sources.
+*
+*******************************************************************************/
+
+#ifdef _MBCS
+#include <cruntime.h>
+#include <mbdata.h>
+#include <mbstring.h>
+#include <mbctype.h>
+
+#define _MBBTYPE(p,c)	_mbbtype(p,c)
+
+/***
+* _mbsbtype - Return type of byte within a string
+*
+*Purpose:
+*	Test byte within a string for MBCS char type.
+*	This function requires the start of the string because
+*	context must be taken into account.
+*
+*Entry:
+*	const unsigned char *string = pointer to string
+*	size_t len = position of the char in string
+*
+*Exit:
+*	returns one of the following values:
+*
+*	_MBC_LEAD      = if 1st byte of MBCS char
+*	_MBC_TRAIL     = if 2nd byte of MBCS char
+*	_MBC_SINGLE    = valid single byte char
+*
+*	_MBC_ILLEGAL   = if illegal char
+*
+*Exceptions:
+*	returns _MBC_ILLEGAL if len is bigger than string length
+*
+*******************************************************************************/
+
+int _CRTAPI1 _mbsbtype( string, len )
+const unsigned char *string;
+size_t len;
+{
+	int chartype = _MBC_ILLEGAL;
+
+	do {
+                if (*string == '\0')
+			return(_MBC_ILLEGAL);
+
+		chartype = _MBBTYPE(*string++, chartype);
+
+	}  while (len--);
+
+	return(chartype);
+}
+#endif	/* _MBCS */