bootparams/bootparamd.tproj/bootparamd.c

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  25  * Copyright 1998, Apple Computer Inc.  Unpublished.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