BSD 4_1_snap release

[unix-history] / usr / src / cmd / berknet / netstart.c

# include "defs.h"
/* sccs id variable */
static char *netstart_sid = "@(#)netstart.c     1.2";

/*
* this is a simple program to start up the net daemon,
* and when it fails, restart it
* 
*/
static int daemon = 32767;              /* a nice safe process number */
main(argc,argv)
 char **argv; {
       int r,killit(),pid;
       while((pid = fork()) == -1)sleep(2);
       if(pid != 0)exit(EX_OK);
       submit(getpid());
       signal(SIGQUIT,SIG_IGN);
       signal(SIGHUP,SIG_IGN);
       signal(SIGINT,SIG_IGN);
       signal(SIGTERM,killit);
       /* will set remote */
       parseargs(argc,argv);
       addtolog(remote,"Netstart started, process id #%d\n",getpid());
       for(;;){
               while((daemon=fork()) == -1)sleep(2);
               if(daemon == 0){
                       argv[0] = "netdaemon";
                       argv[argc] = 0;
                       execv(NETDAEMON,argv);
                       exit(EX_UNAVAILABLE);
                       }
               wait(&r);
               addtolog(remote,"Net daemon exit code %d, low byte 0%o\n",
                       (r>>8), (r&0377));
               sleep(100);             /* avoid looping too fast */
               }
       }
killit(){
       kill(daemon,SIGTERM);           /* send terminate */
       sleep(2);                       /* wait till cleanup */
       kill(daemon,SIGKILL);           /* kill in case too */
       exit(EX_OK);
       }
/* add to allow netstart.c to load */
initseqno(){};