main.c revision 181143
1/* 2 3This code is not copyright, and is placed in the public domain. Feel free to 4use and modify. Please send modifications and/or suggestions + bug fixes to 5 6 Klas Heggemann <klas@nada.kth.se> 7 8*/ 9 10#ifndef lint 11static const char rcsid[] = 12 "$FreeBSD: head/usr.sbin/bootparamd/bootparamd/main.c 181143 2008-08-02 00:10:02Z cognet $"; 13#endif /* not lint */ 14 15#include <ctype.h> 16#include <err.h> 17#include <netdb.h> 18#include <stdio.h> 19#include <stdlib.h> 20#include <string.h> 21#include <syslog.h> 22#include <unistd.h> 23#include <rpc/rpc.h> 24#include <rpc/pmap_clnt.h> 25#include <sys/ioctl.h> 26#include <sys/socket.h> 27#include <sys/stat.h> 28#include <sys/types.h> 29#include <netinet/in.h> 30#include <arpa/inet.h> 31#include "bootparam_prot.h" 32 33int debug = 0; 34int dolog = 0; 35in_addr_t route_addr = -1; 36struct sockaddr_in my_addr; 37char *bootpfile = "/etc/bootparams"; 38 39extern void bootparamprog_1(); 40static void usage(void); 41 42int 43main(argc, argv) 44int argc; 45char **argv; 46{ 47 SVCXPRT *transp; 48 struct hostent *he; 49 struct stat buf; 50 int c; 51 52 while ((c = getopt(argc, argv,"dsr:f:")) != -1) 53 switch (c) { 54 case 'd': 55 debug = 1; 56 break; 57 case 'r': 58 if (isdigit((unsigned char)*optarg)) { 59 route_addr = inet_addr(optarg); 60 break; 61 } else { 62 he = gethostbyname(optarg); 63 if (he) { 64 bcopy(he->h_addr, (char *)&route_addr, sizeof(route_addr)); 65 break; 66 } else { 67 errx(1, "no such host %s", optarg); 68 } 69 } 70 case 'f': 71 bootpfile = optarg; 72 break; 73 case 's': 74 dolog = 1; 75#ifndef LOG_DAEMON 76 openlog("bootparamd", 0 , 0); 77#else 78 openlog("bootparamd", 0 , LOG_DAEMON); 79 setlogmask(LOG_UPTO(LOG_NOTICE)); 80#endif 81 break; 82 default: 83 usage(); 84 } 85 86 if ( stat(bootpfile, &buf ) ) 87 err(1, "%s", bootpfile); 88 89 if (route_addr == -1) { 90 get_myaddress(&my_addr); 91 bcopy(&my_addr.sin_addr.s_addr, &route_addr, sizeof (route_addr)); 92 } 93 94 if (!debug) { 95 if (daemon(0,0)) 96 err(1, "fork"); 97 } 98 99 100 (void)pmap_unset(BOOTPARAMPROG, BOOTPARAMVERS); 101 102 transp = svcudp_create(RPC_ANYSOCK); 103 if (transp == NULL) 104 errx(1, "cannot create udp service"); 105 if (!svc_register(transp, BOOTPARAMPROG, BOOTPARAMVERS, bootparamprog_1, IPPROTO_UDP)) 106 errx(1, "unable to register (BOOTPARAMPROG, BOOTPARAMVERS, udp)"); 107 108 svc_run(); 109 errx(1, "svc_run returned"); 110} 111 112static void 113usage() 114{ 115 fprintf(stderr, 116 "usage: bootparamd [-d] [-s] [-r router] [-f bootparmsfile]\n"); 117 exit(1); 118} 119