55 #define NIL ((TABLE_ENTRY *)0)  macro
70 static TABLE_ENTRY *table = NIL;
86 	for (ptr = table; ptr != NIL; ptr = next) {  in find_match()
124 	for (ptr = table; ptr != NIL; ptr = next) {  in find_request()
160 	if (ptr == NIL) {  in insert_table()
167 	if (ptr->next != NIL)  in insert_table()
169 	ptr->last = NIL;  in insert_table()
198 	for (ptr = table; ptr != NIL; ptr = ptr->next) {  in delete_invite()
204 	if (ptr != NIL) {  in delete_invite()
222 	else if (ptr->last != NIL)  in delete()
224 	if (ptr->next != NIL)  in delete()