bootparams/bootparamd.tproj/bootparamd.c

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * "Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
   7  * Reserved.  This file contains Original Code and/or Modifications of
   8  * Original Code as defined in and that are subject to the Apple Public
   9  * Source License Version 1.0 (the 'License').  You may not use this file
  10  * except in compliance with the License.  Please obtain a copy of the
  11  * License at http://www.apple.com/publicsource and read it before using
  12  * this file.
  13  *
  14  * The Original Code and all software distributed under the License are
  15  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  16  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  17  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  19  * License for the specific language governing rights and limitations
  20  * under the License."
  21  *
  22  * @APPLE_LICENSE_HEADER_END@
  23  */
  24 /*
  25  * BOOTPARAMS server
  26  * Copyright 1998, Apple Computer Inc.  Unpublished.
  27  *
  28  * Written by Marc Majka
  29  */
  30
  31 #include <stdio.h>
  32 #include <string.h>
  33 #include <syslog.h>
  34 #include <rpc/rpc.h>
  35 #include <rpc/pmap_clnt.h>
  36 #include "bootparam_prot.h"
  37 #include <sys/types.h>
  38 #include <sys/socket.h>
  39 #include <netdb.h>
  40 #include <unistd.h>
  41 #include <stdlib.h>
  42 #include <netinet/in.h>
  43 #include <arpa/inet.h>
  44
  45 int debug = 0;
  46 char *progname;
  47
  48 unsigned long route_addr;
  49 char domain_name[MAXHOSTNAMELEN];
  50
  51 int _rpcsvcdirty;
  52 extern void bootparamprog_1();
  53
  54 extern int getdomainname(char*, int);
  55
  56 void
  57 usage(void)
  58 {
  59         fprintf(stderr, "usage: %s [-d] [-r router]\n", progname);
  60         exit(1);
  61 }
  62
  63 int
  64 main(int argc, char *argv[])
  65 {
  66         SVCXPRT *transp;
  67         int i;
  68         struct hostent *h;
  69         char str[256];
  70         FILE *fp;
  71
  72         progname = strrchr(argv[0],'/');
  73         if (progname) progname++;
  74         else progname = argv[0];
  75
  76         route_addr = 0;
  77
  78         for (i = 1; i < argc; i++)
  79         {
  80                 if (!strcmp(argv[i], "-d"))
  81                 {
  82                         debug = 1;
  83                 }
  84                 else if (!strcmp(argv[i], "-r"))
  85                 {
  86                         i++;
  87                         if (i >= argc) usage();
  88
  89                         route_addr = inet_addr(argv[i]);
  90                         if (route_addr == -1)
  91                         {
  92                                 h = gethostbyname(argv[i]);
  93                                 if (h == NULL)
  94                                 {
  95                                         fprintf(stderr, "%s: Can't find host %s\n",
  96                                                 progname, argv[i]);
  97                                         exit(1);
  98                                 }
  99
 100                                 bcopy(h->h_addr, (char *)&route_addr, sizeof(route_addr));
 101                         }
 102                 }
 103                 else usage();
 104         }
 105
 106         if (route_addr == 0)
 107         {
 108                 fp = popen("/usr/sbin/netstat -r -n", "r");
 109                 while (NULL != fgets(str, 256, fp))
 110                 {
 111                         if (strncmp(str, "default ", 8)) continue;
 112                         if (!strncmp(str + 17, "link", 4)) continue;
 113                         route_addr = inet_addr(str+17);
 114                         break;
 115                 }
 116                 pclose(fp);
 117         }
 118
 119         domain_name[0] = '\0';
 120         if (getdomainname(domain_name, sizeof(domain_name)) != 0)
 121             domain_name[0] = '\0';
 122
 123         if (debug == 0) daemon(0,0);
 124
 125         openlog(progname, 0, LOG_DAEMON);
 126         pmap_unset(BOOTPARAMPROG, BOOTPARAMVERS);
 127
 128         transp = svcudp_create(RPC_ANYSOCK);
 129         if (transp == NULL)
 130         {
 131                 syslog(LOG_ERR, "Can't create udp service.");
 132                 exit(1);
 133         }
 134
 135         if (!svc_register(transp, BOOTPARAMPROG, BOOTPARAMVERS, bootparamprog_1, IPPROTO_UDP))
 136         {
 137                 syslog(LOG_ERR, "Can't register service.");
 138                 exit(1);
 139         }
 140
 141         svc_run();
 142
 143         syslog(LOG_ERR, "svc_run returned");
 144         exit(1);
 145 }
 146
 147