The programs with Fig. and pp. info are the one discussed in class:

dgclibcast1.c
dgclimcast5.c
dgclimcast6.c
main.c : 		Fig. 19.14, pp. 508 
recv.c : 		Fig. 19.15, pp. 510
send.c : 		Fig. 19.16, pp. 510
udpcli01.c
udpcli05.c
udpcli06.c