bootparams/bootparamd.tproj/bootparamd.c

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25 /*
  26  * BOOTPARAMS server
  27  * Copyright 1998, Apple Computer Inc.  Unpublished.
  28  *
  29  * Written by Marc Majka
  30  */
  31
  32 #include <stdio.h>
  33 #include <string.h>
  34 #include <syslog.h>
  35 #include <rpc/rpc.h>
  36 #include <rpc/pmap_clnt.h>
  37 #include "bootparam_prot.h"
  38 #include <sys/types.h>
  39 #include <sys/socket.h>
  40 #include <netdb.h>
  41 #include <unistd.h>
  42 #include <stdlib.h>
  43 #include <netinet/in.h>
  44 #include <arpa/inet.h>
  45
  46 int debug = 0;
  47 char *progname;
  48
  49 unsigned long route_addr;
  50 char domain_name[MAXHOSTNAMELEN];
  51
  52 int _rpcsvcdirty;
  53 extern void bootparamprog_1();
  54
  55 extern int getdomainname(char*, int);
  56
  57 void
  58 usage(void)
  59 {
  60         fprintf(stderr, "usage: %s [-d] [-r router]\n", progname);
  61         exit(1);
  62 }
  63
  64 int
  65 main(int argc, char *argv[])
  66 {
  67         SVCXPRT *transp;
  68         int i;
  69         struct hostent *h;
  70         char str[256];
  71         FILE *fp;
  72
  73         progname = strrchr(argv[0],'/');
  74         if (progname) progname++;
  75         else progname = argv[0];
  76
  77         route_addr = 0;
  78
  79         for (i = 1; i < argc; i++)
  80         {
  81                 if (!strcmp(argv[i], "-d"))
  82                 {
  83                         debug = 1;
  84                 }
  85                 else if (!strcmp(argv[i], "-r"))
  86                 {
  87                         i++;
  88                         if (i >= argc) usage();
  89
  90                         route_addr = inet_addr(argv[i]);
  91                         if (route_addr == -1)
  92                         {
  93                                 h = gethostbyname(argv[i]);
  94                                 if (h == NULL)
  95                                 {
  96                                         fprintf(stderr, "%s: Can't find host %s\n",
  97                                                 progname, argv[i]);
  98                                         exit(1);
  99                                 }
 100
 101                                 bcopy(h->h_addr, (char *)&route_addr, sizeof(route_addr));
 102                         }
 103                 }
 104                 else usage();
 105         }
 106
 107         if (route_addr == 0)
 108         {
 109                 fp = popen("/usr/sbin/netstat -r -n", "r");
 110                 while (NULL != fgets(str, 256, fp))
 111                 {
 112                         if (strncmp(str, "default ", 8)) continue;
 113                         if (!strncmp(str + 17, "link", 4)) continue;
 114                         route_addr = inet_addr(str+17);
 115                         break;
 116                 }
 117                 pclose(fp);
 118         }
 119
 120         domain_name[0] = '\0';
 121         if (getdomainname(domain_name, sizeof(domain_name)) != 0)
 122             domain_name[0] = '\0';
 123
 124         if (debug == 0) daemon(0,0);
 125
 126         openlog(progname, 0, LOG_DAEMON);
 127         pmap_unset(BOOTPARAMPROG, BOOTPARAMVERS);
 128
 129         transp = svcudp_create(RPC_ANYSOCK);
 130         if (transp == NULL)
 131         {
 132                 syslog(LOG_ERR, "Can't create udp service.");
 133                 exit(1);
 134         }
 135
 136         if (!svc_register(transp, BOOTPARAMPROG, BOOTPARAMVERS, bootparamprog_1, IPPROTO_UDP))
 137         {
 138                 syslog(LOG_ERR, "Can't register service.");
 139                 exit(1);
 140         }
 141
 142         svc_run();
 143
 144         syslog(LOG_ERR, "svc_run returned");
 145         exit(1);
 146 }
 147
 148