| 1 | /* |
| 2 | * Sun RPC is a product of Sun Microsystems, Inc. and is provided for |
| 3 | * unrestricted use provided that this legend is included on all tape |
| 4 | * media and as a part of the software program in whole or part. Users |
| 5 | * may copy or modify Sun RPC without charge, but are not authorized |
| 6 | * to license or distribute it to anyone else except as part of a product or |
| 7 | * program developed by the user. |
| 8 | * |
| 9 | * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE |
| 10 | * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR |
| 11 | * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. |
| 12 | * |
| 13 | * Sun RPC is provided with no support and without any obligation on the |
| 14 | * part of Sun Microsystems, Inc. to assist in its use, correction, |
| 15 | * modification or enhancement. |
| 16 | * |
| 17 | * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE |
| 18 | * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC |
| 19 | * OR ANY PART THEREOF. |
| 20 | * |
| 21 | * In no event will Sun Microsystems, Inc. be liable for any lost revenue |
| 22 | * or profits or other special, indirect and consequential damages, even if |
| 23 | * Sun has been advised of the possibility of such damages. |
| 24 | * |
| 25 | * Sun Microsystems, Inc. |
| 26 | * 2550 Garcia Avenue |
| 27 | * Mountain View, California 94043 |
| 28 | */ |
| 29 | #ifndef lint |
| 30 | static char sccsid[] = "@(#)pmap_clnt.c 1.4 85/04/08 Copyr 1984 Sun Micro"; |
| 31 | #endif |
| 32 | |
| 33 | /* |
| 34 | * pmap_clnt.c |
| 35 | * Client interface to pmap rpc service. |
| 36 | * |
| 37 | * Copyright (C) 1984, Sun Microsystems, Inc. |
| 38 | */ |
| 39 | |
| 40 | #include "types.h" |
| 41 | #include <netinet/in.h> |
| 42 | #include "xdr.h" |
| 43 | #include "auth.h" |
| 44 | #include "clnt.h" |
| 45 | #include "rpc_msg.h" |
| 46 | #include "pmap_prot.h" |
| 47 | #include "pmap_clnt.h" |
| 48 | #include <sys/socket.h> |
| 49 | #include <sys/time.h> |
| 50 | #include <stdio.h> |
| 51 | #include <net/if.h> |
| 52 | #include <sys/ioctl.h> |
| 53 | #include <arpa/inet.h> |
| 54 | #define NAMELEN 255 |
| 55 | |
| 56 | static struct timeval timeout = { 5, 0 }; |
| 57 | static struct timeval tottimeout = { 60, 0 }; |
| 58 | static struct sockaddr_in myaddress; |
| 59 | |
| 60 | void clnt_perror(); |
| 61 | |
| 62 | |
| 63 | /* |
| 64 | * Set a mapping between program,version and port. |
| 65 | * Calls the pmap service remotely to do the mapping. |
| 66 | */ |
| 67 | bool_t |
| 68 | pmap_set(program, version, protocol, port) |
| 69 | u_long program; |
| 70 | u_long version; |
| 71 | u_long protocol; |
| 72 | u_short port; |
| 73 | { |
| 74 | struct sockaddr_in myaddress; |
| 75 | int socket = -1; |
| 76 | register CLIENT *client; |
| 77 | struct pmap parms; |
| 78 | bool_t rslt; |
| 79 | |
| 80 | get_myaddress(&myaddress); |
| 81 | client = clntudp_create(&myaddress, PMAPPROG, PMAPVERS, |
| 82 | timeout, &socket); |
| 83 | if (client == (CLIENT *)NULL) |
| 84 | return (FALSE); |
| 85 | parms.pm_prog = program; |
| 86 | parms.pm_vers = version; |
| 87 | parms.pm_prot = protocol; |
| 88 | parms.pm_port = port; |
| 89 | if (CLNT_CALL(client, PMAPPROC_SET, xdr_pmap, &parms, xdr_bool, &rslt, |
| 90 | tottimeout) != RPC_SUCCESS) { |
| 91 | clnt_perror(client, "Cannot register service"); |
| 92 | return (FALSE); |
| 93 | } |
| 94 | CLNT_DESTROY(client); |
| 95 | (void)close(socket); |
| 96 | return (rslt); |
| 97 | } |
| 98 | |
| 99 | /* |
| 100 | * Remove the mapping between program,version and port. |
| 101 | * Calls the pmap service remotely to do the un-mapping. |
| 102 | */ |
| 103 | bool_t |
| 104 | pmap_unset(program, version) |
| 105 | u_long program; |
| 106 | u_long version; |
| 107 | { |
| 108 | struct sockaddr_in myaddress; |
| 109 | int socket = -1; |
| 110 | register CLIENT *client; |
| 111 | struct pmap parms; |
| 112 | bool_t rslt; |
| 113 | |
| 114 | get_myaddress(&myaddress); |
| 115 | client = clntudp_create(&myaddress, PMAPPROG, PMAPVERS, |
| 116 | timeout, &socket); |
| 117 | if (client == (CLIENT *)NULL) |
| 118 | return (FALSE); |
| 119 | parms.pm_prog = program; |
| 120 | parms.pm_vers = version; |
| 121 | parms.pm_port = parms.pm_prot = 0; |
| 122 | CLNT_CALL(client, PMAPPROC_UNSET, xdr_pmap, &parms, xdr_bool, &rslt, |
| 123 | tottimeout); |
| 124 | CLNT_DESTROY(client); |
| 125 | (void)close(socket); |
| 126 | return (rslt); |
| 127 | } |
| 128 | |
| 129 | /* |
| 130 | * don't use gethostbyname, which would invoke yellow pages |
| 131 | */ |
| 132 | get_myaddress(addr) |
| 133 | struct sockaddr_in *addr; |
| 134 | { |
| 135 | int s; |
| 136 | char buf[BUFSIZ]; |
| 137 | struct ifconf ifc; |
| 138 | struct ifreq ifreq, *ifr; |
| 139 | int len; |
| 140 | |
| 141 | if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { |
| 142 | perror("get_myaddress: socket"); |
| 143 | exit(1); |
| 144 | } |
| 145 | ifc.ifc_len = sizeof (buf); |
| 146 | ifc.ifc_buf = buf; |
| 147 | if (ioctl(s, SIOCGIFCONF, (char *)&ifc) < 0) { |
| 148 | perror("get_myaddress: ioctl (get interface configuration)"); |
| 149 | exit(1); |
| 150 | } |
| 151 | ifr = ifc.ifc_req; |
| 152 | for (len = ifc.ifc_len; len; len -= sizeof ifreq) { |
| 153 | ifreq = *ifr; |
| 154 | if (ioctl(s, SIOCGIFFLAGS, (char *)&ifreq) < 0) { |
| 155 | perror("get_myaddress: ioctl"); |
| 156 | exit(1); |
| 157 | } |
| 158 | if ((ifreq.ifr_flags & IFF_UP) && |
| 159 | ifr->ifr_addr.sa_family == AF_INET) { |
| 160 | *addr = *((struct sockaddr_in *)&ifr->ifr_addr); |
| 161 | addr->sin_port = htons(PMAPPORT); |
| 162 | break; |
| 163 | } |
| 164 | ifr++; |
| 165 | } |
| 166 | close(s); |
| 167 | } |