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 1.14 2008/08/02 00:10:02 cognet Exp $
  12  * $DragonFly: src/usr.sbin/bootparamd/bootparamd/main.c,v 1.6 2008/09/19 18:48:33 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 in_addr_t 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         struct hostent *he;
  46         struct stat buf;
  47         int c;
  48
  49         while ((c = getopt(argc, argv,"dsr:f:")) != -1)
  50           switch (c) {
  51           case 'd':
  52             debug = 1;
  53             break;
  54           case 'r':
  55               if (isdigit((unsigned char)*optarg)) {
  56                 route_addr = inet_addr(optarg);
  57                 break;
  58               } else {
  59                 he = gethostbyname(optarg);
  60                 if (he) {
  61                    bcopy(he->h_addr, (char *)&route_addr, sizeof(route_addr));
  62                    break;
  63                 } else {
  64                    errx(1, "no such host %s", optarg);
  65                 }
  66               }
  67           case 'f':
  68             bootpfile = optarg;
  69             break;
  70           case 's':
  71             dolog = 1;
  72 #ifndef LOG_DAEMON
  73             openlog("bootparamd", 0 , 0);
  74 #else
  75             openlog("bootparamd", 0 , LOG_DAEMON);
  76             setlogmask(LOG_UPTO(LOG_NOTICE));
  77 #endif
  78             break;
  79           default:
  80             usage();
  81           }
  82
  83         if ( stat(bootpfile, &buf ) )
  84           err(1, "%s", bootpfile);
  85
  86         if (route_addr == -1) {
  87           get_myaddress(&my_addr);
  88           bcopy(&my_addr.sin_addr.s_addr, &route_addr, sizeof (route_addr));
  89         }
  90
  91         if (!debug) {
  92           if (daemon(0,0))
  93             err(1, "fork");
  94         }
  95
  96
  97         pmap_unset(BOOTPARAMPROG, BOOTPARAMVERS);
  98
  99         transp = svcudp_create(RPC_ANYSOCK);
 100         if (transp == NULL)
 101                 errx(1, "cannot create udp service");
 102         if (!svc_register(transp, BOOTPARAMPROG, BOOTPARAMVERS, bootparamprog_1, IPPROTO_UDP))
 103                 errx(1, "unable to register (BOOTPARAMPROG, BOOTPARAMVERS, udp)");
 104
 105         svc_run();
 106         errx(1, "svc_run returned");
 107 }
 108
 109 static void
 110 usage(void)
 111 {
 112         fprintf(stderr,
 113                 "usage: bootparamd [-d] [-s] [-r router] [-f bootparmsfile]\n");
 114         exit(1);
 115 }