Created new subject_crc() function that replaces the old remove_re() function.

src/sbbs3/sbbs.h

@@ -778,7 +778,7 @@ extern "C" {
 	DLLEXPORT ushort	DLLCALL crc16(char *str);
 	DLLEXPORT BOOL		DLLCALL validattr(char a);
 	DLLEXPORT size_t	DLLCALL strip_invalid_attr(char *str);
-
+	DLLEXPORT ushort	DLLCALL subject_crc(char *subj);
 
 	/* date_str.c */
 	DLLEXPORT char *	DLLCALL zonestr(short zone);
@@ -904,9 +904,6 @@ BOOL 	md(char *path);
 	int 	eprintf(char *fmt, ...);	/* event log */
 	int 	lputs(char *);				/* telnet log */
 
-	/* qwk.cpp */
-	void	remove_re(char *str);
-
 	/* ver.cpp */
 	char*	socklib_version(char* str);
 

src/sbbs3/str_util.c

@@ -448,3 +448,18 @@ size_t DLLCALL strip_invalid_attr(char *strin)
 	strcpy(strin,str);
 	return(a);
 }
+
+ushort DLLCALL subject_crc(char *subj)
+{
+	char str[512];
+
+	while(!strnicmp(subj,"RE:",3)) {
+		subj+=3;
+		while(*subj==SP)
+			subj++; 
+	}
+
+	SAFECOPY(str,subj);
+	strlwr(str);
+	return(crc16(str));
+}