usr.sbin/bootparamd/bootparamd/main.c

   1 /*
   2
   3 This code is not copyright, and is placed in the public domain. Feel free to
   4 use and modify. Please send modifications and/or suggestions + bug fixes to
   5
   6         Klas Heggemann <klas@nada.kth.se>
   7
   8 */
   9
  10 /*
  11  * $FreeBSD: src/usr.sbin/bootparamd/bootparamd/main.c,v 1.9 1999/08/28 01:15:39 peter Exp $
  12  * $DragonFly: src/usr.sbin/bootparamd/bootparamd/main.c,v 1.5 2004/12/18 22:48:02 swildner Exp $
  13  */
  14 #include <ctype.h>
  15 #include <err.h>
  16 #include <netdb.h>
  17 #include <stdio.h>
  18 #include <stdlib.h>
  19 #include <string.h>
  20 #include <syslog.h>
  21 #include <unistd.h>
  22 #include <rpc/rpc.h>
  23 #include <rpc/pmap_clnt.h>
  24 #include <sys/ioctl.h>
  25 #include <sys/socket.h>
  26 #include <sys/stat.h>
  27 #include <sys/types.h>
  28 #include <netinet/in.h>
  29 #include <arpa/inet.h>
  30 #include "bootparam_prot.h"
  31
  32 int debug = 0;
  33 int dolog = 0;
  34 unsigned long route_addr = -1;
  35 struct sockaddr_in my_addr;
  36 char *bootpfile = "/etc/bootparams";
  37
  38 extern  void bootparamprog_1();
  39 static void usage(void);
  40
  41 int
  42 main(int argc, char **argv)
  43 {
  44         SVCXPRT *transp;
  45         int i;
  46         struct hostent *he;
  47         struct stat buf;
  48         char c;
  49
  50         while ((c = getopt(argc, argv,"dsr:f:")) != -1)
  51           switch (c) {
  52           case 'd':
  53             debug = 1;
  54             break;
  55           case 'r':
  56               if ( isdigit( *optarg)) {
  57                 route_addr = inet_addr(optarg);
  58                 break;
  59               } else {
  60                 he = gethostbyname(optarg);
  61                 if (he) {
  62                    bcopy(he->h_addr, (char *)&route_addr, sizeof(route_addr));
  63                    break;
  64                 } else {
  65                    errx(1, "no such host %s", argv[i]);
  66                 }
  67               }
  68           case 'f':
  69             bootpfile = optarg;
  70             break;
  71           case 's':
  72             dolog = 1;
  73 #ifndef LOG_DAEMON
  74             openlog("bootparamd", 0 , 0);
  75 #else
  76             openlog("bootparamd", 0 , LOG_DAEMON);
  77             setlogmask(LOG_UPTO(LOG_NOTICE));
  78 #endif
  79             break;
  80           default:
  81             usage();
  82           }
  83
  84         if ( stat(bootpfile, &buf ) )
  85           err(1, "%s", bootpfile);
  86
  87         if (route_addr == -1) {
  88           get_myaddress(&my_addr);
  89           bcopy(&my_addr.sin_addr.s_addr, &route_addr, sizeof (route_addr));
  90         }
  91
  92         if (!debug) {
  93           if (daemon(0,0))
  94             err(1, "fork");
  95         }
  96
  97
  98         pmap_unset(BOOTPARAMPROG, BOOTPARAMVERS);
  99
 100         transp = svcudp_create(RPC_ANYSOCK);
 101         if (transp == NULL)
 102                 errx(1, "cannot create udp service");
 103         if (!svc_register(transp, BOOTPARAMPROG, BOOTPARAMVERS, bootparamprog_1, IPPROTO_UDP))
 104                 errx(1, "unable to register (BOOTPARAMPROG, BOOTPARAMVERS, udp)");
 105
 106         svc_run();
 107         errx(1, "svc_run returned");
 108 }
 109
 110 static void
 111 usage(void)
 112 {
 113         fprintf(stderr,
 114                 "usage: bootparamd [-d] [-s] [-r router] [-f bootparmsfile]\n");
 115         exit(1);
 116 }