@@ -205,12 +205,8 @@ unsigned short int crc_16_tab[] = { /* CRC polynomial 0xA001 */

 0x8201, 0x42C0, 0x4380, 0x8341, 0x4100, 0x81C1, 0x8081, 0x4040,

 };

-unsigned short crcitt_string( char *s, int len )

-{

-	register unsigned short ccitt;

-	

-	ccitt = 0xFFFF;

-

+unsigned short crcitt_string_ex( char *s, int len, register unsigned short ccitt) {

+	ccitt = ~ccitt;

 	while( len ) {

 		ccitt = UPDCIT(*s, ccitt);

 		s++; len--;

@@ -218,6 +214,11 @@ unsigned short crcitt_string( char *s, int len )

 	return ~ccitt;

 }

+unsigned short crcitt_string( char *s, int len )

+{

+	return crcitt_string_ex(s, len, 0);

+}

+

 void crcitt_string_array( char *dst, str src[], int size )

 {

 	register int i;

@@ -11,6 +11,8 @@ extern unsigned long int crc_32_tab[];

 extern unsigned short int ccitt_tab[];

 extern unsigned short int crc_16_tab[];

+

+unsigned short crcitt_string_ex( char *s, int len, register unsigned short ccitt);

 unsigned short crcitt_string( char *s, int len );

 void crcitt_string_array( char *dst, str src[], int size );