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Annotation of 3BSD/cmd/net/netstart.c, revision 1.1.1.1

1.1       root        1: # include <stdio.h>
                      2: # include "mach.h"
                      3: # include "Paths.h"
                      4: /*
                      5:  * this is a simple program to start up the net daemon,
                      6:  * and when it fails, restart it
                      7:  * 
                      8:  * 
                      9:  */
                     10: static int daemon = 32767;             /* a nice safe process number */
                     11: main(argc,argv)
                     12:   char **argv; {
                     13:        char *s,mchTo;
                     14:        int r,killit(),pid;
                     15:        while((pid = fork()) == -1)sleep(2);
                     16:        if(pid != 0)exit(0);
                     17:        submit(getpid());
                     18:        signal(SIGQUIT,SIG_IGN);
                     19:        signal(SIGHUP,SIG_IGN);
                     20:        signal(SIGINT,SIG_IGN);
                     21:        signal(SIGTRM,killit);
                     22:        s = argc == 1 ? 0 : argv[1];
                     23:        mchTo = argc == 1 ? 'a' : lookup(s);
                     24:        for(;;){
                     25:                while((daemon=fork()) == -1)sleep(2);
                     26:                if(daemon == 0){
                     27:                        execl(NETDAEMON,"netdaemon",s,0);
                     28:                        exit(1);
                     29:                        }
                     30:                wait(&r);
                     31:                addtolog(mchTo,"Net daemon exit code %d, low byte %o\n",
                     32:                        (r>>8), (r&0377));
                     33:                sleep(100);             /* avoid looping too fast */
                     34:                }
                     35:        }
                     36: killit(){
                     37:        kill(daemon,SIGTRM);            /* send terminate */
                     38:        sleep(2);                       /* wait till cleanup */
                     39:        kill(daemon,SIGKIL);            /* kill in case too */
                     40:        exit(0);
                     41:        }

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