Multiple class entry who list

I want to add three fields to the class area of the who list..
Here's the code i've tried:

strcpy( char_name, wch->name );
if (wch->classtwo != -1 && wch->classthree != -1)
sprintf( class_text, "%s%2d %s|%s|%s", NOT_AUTHED(wch) ? "N" : " ", wch->level,
class_table[wch->class]->who_name, class_table[wch->classtwo]->who_name,
class_table[wch->classthree]->who_name );

else if (wch->classtwo != -1 && wch->classthree == -1)
sprintf( class_text, "%s%2d %s|%s|%s", NOT_AUTHED(wch) ? "N" : " ", wch->level,
class_table[wch->class]->who_name, class_table[wch->classtwo]->who_name,
class_table[wch->classthree]->who_name );

else if (wch->classtwo == -1 && wch->classthree == -1)
sprintf( class_text, "%s%2d %s|%s|%s", NOT_AUTHED(wch) ? "N" : " ", wch->level,
class_table[wch->class]->who_name );

class = class_text;



But all that does is crash when the first or second ones come out true

Got it working.. if anyone needs to know how to list multiple classes for something like multiclass or something just ask and i'll post it