58 pid_t childpid;  variable
65 	if (0 < childpid) {  in cleanup()
68 		if (kill(childpid, 0) == 0 || errno == ESRCH) {  in cleanup()
71 			(void)kill(childpid, 15);  in cleanup()
74 			if (waitpid(childpid, &status, WNOHANG) < 0) {  in cleanup()
76 					 "waitpid(%d, ...) failed", childpid);  in cleanup()
88 void parent(int masterfd, int childpid)  in parent()  argument
148 	while (waitpid(childpid, &status, WNOHANG) < 0 && errno != ESRCH) ;  in parent()
213 	pid_t childpid;  in main()  local
230 	childpid = fork();  in main()
231 	if (childpid == -1)  in main()
233 	else if (childpid == 0)  in main()
236 		parent(masterfd, childpid);  in main()