RCS_ID_C="$Id: rpcinfo.c,v 3.6 1994/05/02 19:52:55 jraja Exp $"; /* * rpcinfo.c -- ping a particular rpc program or dump the portmapper */ #include "rpcinfo_rev.h" static const char version[] = VERSTAG " Copyright © 1994 AmiTCP/IP Group, \n" "Helsinki University of Technology, Finland.\n" "Copyright © 1990 The Regents of the University of California.\n" "All rights reserved.\n"; /****** netutil.doc/rpcinfo ************************************************* NAME rpcinfo - report RPC information SYNOPSIS `rpcinfo -p [ host ]' `rpcinfo [ -n portnum ] -u host program [ version ]' `rpcinfo [ -n portnum ] -t host program [ version ]' `rpcinfo -b program version' `rpcinfo -d program version' DESCRIPTION `rpcinfo' makes an RPC call to an RPC server and reports what it finds. OPTIONS `-p' Probe the portmapper on host, and print a list of all registered RPC programs. If host is not specified, it defaults to the value returned by `gethostname()'. `-u' Make an RPC call to procedure 0 of program on the specified host using UDP, and report whether a response was received. `-t' Make an RPC call to procedure 0 of program on the specified host using TCP, and report whether a response was received. `-n' Use `portnum' as the port number for the `-t' and `-u' options instead of the port number given by the portmapper. `-b' Make an RPC broadcast to procedure 0 of the specified program and version using UDP and report all hosts that respond. `-d' Delete registration for the RPC service of the specified program and version. This option can be exercised only by the superuser. The program argument can be either a name or a number. If a version is specified, `rpcinfo' attempts to call that version of the specified program. Otherwise, rpcinfo attempts to find all the registered version numbers for the specified program by calling version 0 (which is presumed not to exist; if it does exist, rpcinfo attempts to obtain this information by calling an extremely high version number instead) and attempts to call each registered version. *Note:* the version number is required for -b and -d options. EXAMPLES To show all of the RPC services registered on the local machine use: example% rpcinfo -p To show all of the RPC services registered on the machine named klaxon use: example% rpcinfo -p klaxon To show all machines on the local net that are running the Yellow Pages service use: example% rpcinfo -b ypserv 'version' | uniq where '`version'' is the current Yellow Pages version obtained from the results of the `-p' switch above. To delete the registration for version 1 of the `walld' service use: example% rpcinfo -d walld 1 SEE ALSO AmiTCP:db/rpc, netutil.doc/portmap ***************************************************************************** * */ /* * @(#)rpcinfo.c 2.2 88/08/11 4.0 RPCSRC * @(#)rpcinfo.c 1.22 87/08/12 SMI"; * * Copyright (C) 1986, Sun Microsystems, Inc. */ #include #include #include #include #include #include #include #include #include #include #include #ifdef AMITCP #define close CloseSocket #endif #define MAXHOSTLEN 256 #define MIN_VERS ((u_long) 0) #define MAX_VERS ((u_long) 4294967295L) static void udpping(u_short portflag, int argc, char **argv); static void tcpping(u_short portflag, int argc, char **argv); static int pstatus(CLIENT *client, u_long prognum, u_long vers); static void pmapdump(int argc, char **argv); static bool_t reply_proc(void *res, struct sockaddr_in *who); static void brdcst(int argc, char **argv); static void deletereg( int argc, char **argv ) ; static void usage(void); static u_long getprognum(char *arg); static u_long getvers(char *arg); static void get_inet_address(struct sockaddr_in *addr, char *host); /* * Functions to be performed. */ #define NONE 0 /* no function */ #define PMAPDUMP 1 /* dump portmapper registrations */ #define TCPPING 2 /* ping TCP service */ #define UDPPING 3 /* ping UDP service */ #define BRDCST 4 /* ping broadcast UDP service */ #define DELETES 5 /* delete registration for the service */ int main(int argc, char **argv) { register int c; extern char *optarg; extern int optind; int errflg; int function; u_short portnum; function = NONE; portnum = 0; errflg = 0; while ((c = getopt(argc, argv, "ptubdn:")) != EOF) { switch (c) { case 'p': if (function != NONE) errflg = 1; else function = PMAPDUMP; break; case 't': if (function != NONE) errflg = 1; else function = TCPPING; break; case 'u': if (function != NONE) errflg = 1; else function = UDPPING; break; case 'b': if (function != NONE) errflg = 1; else function = BRDCST; break; case 'n': portnum = (u_short) atoi(optarg); /* hope we don't get bogus # */ break; case 'd': if (function != NONE) errflg = 1; else function = DELETES; break; case '?': errflg = 1; } } if (errflg || function == NONE) { usage(); return (1); } switch (function) { case PMAPDUMP: if (portnum != 0) { usage(); return (1); } pmapdump(argc - optind, argv + optind); break; case UDPPING: udpping(portnum, argc - optind, argv + optind); break; case TCPPING: tcpping(portnum, argc - optind, argv + optind); break; case BRDCST: if (portnum != 0) { usage(); return (1); } brdcst(argc - optind, argv + optind); break; case DELETES: deletereg(argc - optind, argv + optind); break; } return (0); } static void udpping(u_short portnum, int argc, char **argv) { struct timeval to; struct sockaddr_in addr; enum clnt_stat rpc_stat; CLIENT *client; u_long prognum, vers, minvers, maxvers; int sock = RPC_ANYSOCK; struct rpc_err rpcerr; int failure; if (argc < 2 || argc > 3) { usage(); exit(1); } prognum = getprognum(argv[1]); get_inet_address(&addr, argv[0]); /* Open the socket here so it will survive calls to clnt_destroy */ sock = socket( AF_INET, SOCK_DGRAM, IPPROTO_UDP); if (sock < 0) { perror("rpcinfo: socket"); exit(1); } failure = 0; if (argc == 2) { /* * A call to version 0 should fail with a program/version * mismatch, and give us the range of versions supported. */ addr.sin_port = htons(portnum); to.tv_sec = 5; to.tv_usec = 0; if ((client = clntudp_create(&addr, prognum, (u_long)0, to, &sock)) == NULL) { clnt_pcreateerror("rpcinfo"); printf("program %lu is not available\n", prognum); exit(1); } to.tv_sec = 10; to.tv_usec = 0; rpc_stat = clnt_call(client, NULLPROC, xdr_void, (char *)NULL, xdr_void, (char *)NULL, to); if (rpc_stat == RPC_PROGVERSMISMATCH) { clnt_geterr(client, &rpcerr); minvers = rpcerr.re_vers.low; maxvers = rpcerr.re_vers.high; } else if (rpc_stat == RPC_SUCCESS) { /* * Oh dear, it DOES support version 0. * Let's try version MAX_VERS. */ addr.sin_port = htons(portnum); to.tv_sec = 5; to.tv_usec = 0; if ((client = clntudp_create(&addr, prognum, MAX_VERS, to, &sock)) == NULL) { clnt_pcreateerror("rpcinfo"); printf("program %lu version %lu is not available\n", prognum, MAX_VERS); exit(1); } to.tv_sec = 10; to.tv_usec = 0; rpc_stat = clnt_call(client, NULLPROC, xdr_void, (char *)NULL, xdr_void, (char *)NULL, to); if (rpc_stat == RPC_PROGVERSMISMATCH) { clnt_geterr(client, &rpcerr); minvers = rpcerr.re_vers.low; maxvers = rpcerr.re_vers.high; } else if (rpc_stat == RPC_SUCCESS) { /* * It also supports version MAX_VERS. * Looks like we have a wise guy. * OK, we give them information on all * 4 billion versions they support... */ minvers = 0; maxvers = MAX_VERS; } else { (void) pstatus(client, prognum, MAX_VERS); exit(1); } } else { (void) pstatus(client, prognum, (u_long)0); exit(1); } clnt_destroy(client); for (vers = minvers; vers <= maxvers; vers++) { addr.sin_port = htons(portnum); to.tv_sec = 5; to.tv_usec = 0; if ((client = clntudp_create(&addr, prognum, vers, to, &sock)) == NULL) { clnt_pcreateerror("rpcinfo"); printf("program %lu version %lu is not available\n", prognum, vers); exit(1); } to.tv_sec = 10; to.tv_usec = 0; rpc_stat = clnt_call(client, NULLPROC, xdr_void, (char *)NULL, xdr_void, (char *)NULL, to); if (pstatus(client, prognum, vers) < 0) failure = 1; clnt_destroy(client); } } else { vers = getvers(argv[2]); addr.sin_port = htons(portnum); to.tv_sec = 5; to.tv_usec = 0; if ((client = clntudp_create(&addr, prognum, vers, to, &sock)) == NULL) { clnt_pcreateerror("rpcinfo"); printf("program %lu version %lu is not available\n", prognum, vers); exit(1); } to.tv_sec = 10; to.tv_usec = 0; rpc_stat = clnt_call(client, 0, xdr_void, (char *)NULL, xdr_void, (char *)NULL, to); if (pstatus(client, prognum, vers) < 0) failure = 1; } (void) close(sock); /* Close it up again */ if (failure) exit(1); } static void tcpping(u_short portnum, int argc, char **argv) { struct timeval to; struct sockaddr_in addr; enum clnt_stat rpc_stat; CLIENT *client; u_long prognum, vers, minvers, maxvers; int sock = RPC_ANYSOCK; struct rpc_err rpcerr; int failure; if (argc < 2 || argc > 3) { usage(); exit(1); } prognum = getprognum(argv[1]); get_inet_address(&addr, argv[0]); failure = 0; if (argc == 2) { /* * A call to version 0 should fail with a program/version * mismatch, and give us the range of versions supported. */ addr.sin_port = htons(portnum); if ((client = clnttcp_create(&addr, prognum, MIN_VERS, &sock, 0, 0)) == NULL) { clnt_pcreateerror("rpcinfo"); printf("program %lu is not available\n", prognum); exit(1); } to.tv_sec = 10; to.tv_usec = 0; rpc_stat = clnt_call(client, NULLPROC, xdr_void, (char *)NULL, xdr_void, (char *)NULL, to); if (rpc_stat == RPC_PROGVERSMISMATCH) { clnt_geterr(client, &rpcerr); minvers = rpcerr.re_vers.low; maxvers = rpcerr.re_vers.high; } else if (rpc_stat == RPC_SUCCESS) { /* * Oh dear, it DOES support version 0. * Let's try version MAX_VERS. */ addr.sin_port = htons(portnum); if ((client = clnttcp_create(&addr, prognum, MAX_VERS, &sock, 0, 0)) == NULL) { clnt_pcreateerror("rpcinfo"); printf("program %lu version %lu is not available\n", prognum, MAX_VERS); exit(1); } to.tv_sec = 10; to.tv_usec = 0; rpc_stat = clnt_call(client, NULLPROC, xdr_void, (char *)NULL, xdr_void, (char *)NULL, to); if (rpc_stat == RPC_PROGVERSMISMATCH) { clnt_geterr(client, &rpcerr); minvers = rpcerr.re_vers.low; maxvers = rpcerr.re_vers.high; } else if (rpc_stat == RPC_SUCCESS) { /* * It also supports version MAX_VERS. * Looks like we have a wise guy. * OK, we give them information on all * 4 billion versions they support... */ minvers = 0; maxvers = MAX_VERS; } else { (void) pstatus(client, prognum, MAX_VERS); exit(1); } } else { (void) pstatus(client, prognum, MIN_VERS); exit(1); } clnt_destroy(client); (void) close(sock); sock = RPC_ANYSOCK; /* Re-initialize it for later */ for (vers = minvers; vers <= maxvers; vers++) { addr.sin_port = htons(portnum); if ((client = clnttcp_create(&addr, prognum, vers, &sock, 0, 0)) == NULL) { clnt_pcreateerror("rpcinfo"); printf("program %lu version %lu is not available\n", prognum, vers); exit(1); } to.tv_usec = 0; to.tv_sec = 10; rpc_stat = clnt_call(client, 0, xdr_void, (char *)NULL, xdr_void, (char *)NULL, to); if (pstatus(client, prognum, vers) < 0) failure = 1; clnt_destroy(client); (void) close(sock); sock = RPC_ANYSOCK; } } else { vers = getvers(argv[2]); addr.sin_port = htons(portnum); if ((client = clnttcp_create(&addr, prognum, vers, &sock, 0, 0)) == NULL) { clnt_pcreateerror("rpcinfo"); printf("program %lu version %lu is not available\n", prognum, vers); exit(1); } to.tv_usec = 0; to.tv_sec = 10; rpc_stat = clnt_call(client, 0, xdr_void, (char *)NULL, xdr_void, (char *)NULL, to); if (pstatus(client, prognum, vers) < 0) failure = 1; } if (failure) exit(1); } /* * This routine should take a pointer to an "rpc_err" structure, rather than * a pointer to a CLIENT structure, but "clnt_perror" takes a pointer to * a CLIENT structure rather than a pointer to an "rpc_err" structure. * As such, we have to keep the CLIENT structure around in order to print * a good error message. */ static int pstatus(register CLIENT *client, u_long prognum, u_long vers) { struct rpc_err rpcerr; clnt_geterr(client, &rpcerr); if (rpcerr.re_status != RPC_SUCCESS) { clnt_perror(client, "rpcinfo"); printf("program %lu version %lu is not available\n", prognum, vers); return (-1); } else { printf("program %lu version %lu ready and waiting\n", prognum, vers); return (0); } } static void pmapdump(int argc, char **argv) { struct sockaddr_in server_addr; register struct hostent *hp; struct pmaplist *head = NULL; int socket = RPC_ANYSOCK; struct timeval minutetimeout; register CLIENT *client; struct rpcent *rpc; if (argc > 1) { usage(); exit(1); } if (argc == 1) get_inet_address(&server_addr, argv[0]); else { bzero((char *)&server_addr, sizeof server_addr); server_addr.sin_family = AF_INET; if ((hp = gethostbyname("localhost")) != NULL) bcopy(hp->h_addr, (caddr_t)&server_addr.sin_addr, hp->h_length); else server_addr.sin_addr.s_addr = inet_addr("0.0.0.0"); } minutetimeout.tv_sec = 60; minutetimeout.tv_usec = 0; server_addr.sin_port = htons(PMAPPORT); if ((client = clnttcp_create(&server_addr, PMAPPROG, PMAPVERS, &socket, 50, 500)) == NULL) { clnt_pcreateerror("rpcinfo: can't contact portmapper"); exit(1); } if (clnt_call(client, PMAPPROC_DUMP, xdr_void, NULL, xdr_pmaplist, &head, minutetimeout) != RPC_SUCCESS) { fprintf(stderr, "rpcinfo: can't contact portmapper: "); clnt_perror(client, "rpcinfo"); exit(1); } if (head == NULL) { printf("No remote programs registered.\n"); } else { printf(" program vers proto port\n"); for (; head != NULL; head = head->pml_next) { printf("%10ld%5ld", head->pml_map.pm_prog, head->pml_map.pm_vers); if (head->pml_map.pm_prot == IPPROTO_UDP) printf("%6s", "udp"); else if (head->pml_map.pm_prot == IPPROTO_TCP) printf("%6s", "tcp"); else printf("%6ld", head->pml_map.pm_prot); printf("%7ld", head->pml_map.pm_port); rpc = getrpcbynumber(head->pml_map.pm_prog); if (rpc) printf(" %s\n", rpc->r_name); else printf("\n"); } } } /* * reply_proc collects replies from the broadcast. * to get a unique list of responses the output of rpcinfo should * be piped through sort(1) and then uniq(1). */ /*ARGSUSED*/ static bool_t reply_proc(void *res, struct sockaddr_in *who) /* res - Nothing comes back */ /* who - Who sent us the reply */ { register struct hostent *hp; hp = gethostbyaddr((char *) &who->sin_addr, sizeof who->sin_addr, AF_INET); printf("%s %s\n", inet_ntoa(who->sin_addr), (hp == NULL) ? "(unknown)" : hp->h_name); return(FALSE); } static void brdcst(int argc, char **argv) { enum clnt_stat rpc_stat; u_long prognum, vers; if (argc != 2) { usage(); exit(1); } prognum = getprognum(argv[0]); vers = getvers(argv[1]); rpc_stat = clnt_broadcast(prognum, vers, NULLPROC, xdr_void, (char *)NULL, xdr_void, (char *)NULL, reply_proc); if ((rpc_stat != RPC_SUCCESS) && (rpc_stat != RPC_TIMEDOUT)) { fprintf(stderr, "rpcinfo: broadcast failed: %s\n", clnt_sperrno(rpc_stat)); exit(1); } exit(0); } static void deletereg(int argc, char **argv) { u_long prog_num, version_num ; if (argc != 2) { usage() ; exit(1) ; } if (getuid()) { /* This command allowed only to root */ fprintf(stderr, "Sorry. You are not root\n") ; exit(1) ; } prog_num = getprognum(argv[0]); version_num = getvers(argv[1]); if ((pmap_unset(prog_num, version_num)) == 0) { fprintf(stderr, "rpcinfo: Could not delete registration for prog %s version %s\n", argv[0], argv[1]) ; exit(1) ; } } static void usage(void) { fprintf(stderr, "Usage: rpcinfo [ -n portnum ] -u host prognum [ versnum ]\n"); fprintf(stderr, " rpcinfo [ -n portnum ] -t host prognum [ versnum ]\n"); fprintf(stderr, " rpcinfo -p [ host ]\n"); fprintf(stderr, " rpcinfo -b prognum versnum\n"); fprintf(stderr, " rpcinfo -d prognum versnum\n") ; } static u_long getprognum(char *arg) { register struct rpcent *rpc; register u_long prognum; if (isalpha(*arg)) { rpc = getrpcbyname(arg); if (rpc == NULL) { fprintf(stderr, "rpcinfo: %s is unknown service\n", arg); exit(1); } prognum = rpc->r_number; } else { prognum = (u_long) atoi(arg); } return (prognum); } static u_long getvers(char *arg) { register u_long vers; vers = (int) atoi(arg); return (vers); } static void get_inet_address(struct sockaddr_in *addr, char *host) { register struct hostent *hp; bzero((char *)addr, sizeof *addr); addr->sin_addr.s_addr = (u_long) inet_addr(host); if (addr->sin_addr.s_addr == -1 || addr->sin_addr.s_addr == 0) { if ((hp = gethostbyname(host)) == NULL) { fprintf(stderr, "rpcinfo: %s is unknown host\n", host); exit(1); } bcopy(hp->h_addr, (char *)&addr->sin_addr, hp->h_length); } addr->sin_family = AF_INET; }