1: static char sccsid[] = "@(#)pwtable.c 2.6"; /* SCCS id keyword */ 2: #include <stdio.h> 3: #include <signal.h> 4: 5: /* 6: * create password tables 7: */ 8: 9: main () { 10: signal (SIGHUP,SIG_IGN); 11: signal (SIGINT,SIG_IGN); 12: signal (SIGQUIT,SIG_IGN); 13: signal (SIGTERM,SIG_IGN); 14: if (pwlock("w")) { 15: printf("Temp file busy\n"); 16: exit(-1); 17: } 18: pwunlock(); 19: }