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Diffstat (limited to 'lib/librpc/rpc/clnt_udp.c')
-rw-r--r--lib/librpc/rpc/clnt_udp.c442
1 files changed, 0 insertions, 442 deletions
diff --git a/lib/librpc/rpc/clnt_udp.c b/lib/librpc/rpc/clnt_udp.c
deleted file mode 100644
index 815cbb4..0000000
--- a/lib/librpc/rpc/clnt_udp.c
+++ /dev/null
@@ -1,442 +0,0 @@
-/* @(#)clnt_udp.c 2.2 88/08/01 4.0 RPCSRC */
-/*
- * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
- * unrestricted use provided that this legend is included on all tape
- * media and as a part of the software program in whole or part. Users
- * may copy or modify Sun RPC without charge, but are not authorized
- * to license or distribute it to anyone else except as part of a product or
- * program developed by the user.
- *
- * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
- * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
- *
- * Sun RPC is provided with no support and without any obligation on the
- * part of Sun Microsystems, Inc. to assist in its use, correction,
- * modification or enhancement.
- *
- * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
- * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
- * OR ANY PART THEREOF.
- *
- * In no event will Sun Microsystems, Inc. be liable for any lost revenue
- * or profits or other special, indirect and consequential damages, even if
- * Sun has been advised of the possibility of such damages.
- *
- * Sun Microsystems, Inc.
- * 2550 Garcia Avenue
- * Mountain View, California 94043
- */
-#if !defined(lint) && defined(SCCSIDS)
-static char sccsid[] = "@(#)clnt_udp.c 1.39 87/08/11 Copyr 1984 Sun Micro";
-#endif
-
-/*
- * clnt_udp.c, Implements a UDP/IP based, client side RPC.
- *
- * Copyright (C) 1984, Sun Microsystems, Inc.
- */
-
-#include <stdio.h>
-#include <rpc/rpc.h>
-#include <sys/socket.h>
-#include <sys/ioctl.h>
-#include <netdb.h>
-#include <errno.h>
-#include <rpc/pmap_clnt.h>
-
-extern int errno;
-
-/*
- * UDP bases client side rpc operations
- */
-static enum clnt_stat clntudp_call();
-static void clntudp_abort();
-static void clntudp_geterr();
-static bool_t clntudp_freeres();
-static bool_t clntudp_control();
-static void clntudp_destroy();
-
-static struct clnt_ops udp_ops = {
- clntudp_call,
- clntudp_abort,
- clntudp_geterr,
- clntudp_freeres,
- clntudp_destroy,
- clntudp_control
-};
-
-/*
- * Private data kept per client handle
- */
-struct cu_data {
- int cu_sock;
- bool_t cu_closeit;
- struct sockaddr_in cu_raddr;
- int cu_rlen;
- struct timeval cu_wait;
- struct timeval cu_total;
- struct rpc_err cu_error;
- XDR cu_outxdrs;
- u_int cu_xdrpos;
- u_int cu_sendsz;
- char *cu_outbuf;
- u_int cu_recvsz;
- char cu_inbuf[1];
-};
-
-/*
- * Create a UDP based client handle.
- * If *sockp<0, *sockp is set to a newly created UPD socket.
- * If raddr->sin_port is 0 a binder on the remote machine
- * is consulted for the correct port number.
- * NB: It is the clients responsibility to close *sockp.
- * NB: The rpch->cl_auth is initialized to null authentication.
- * Caller may wish to set this something more useful.
- *
- * wait is the amount of time used between retransmitting a call if
- * no response has been heard; retransmition occurs until the actual
- * rpc call times out.
- *
- * sendsz and recvsz are the maximum allowable packet sizes that can be
- * sent and received.
- */
-CLIENT *
-clntudp_bufcreate(raddr, program, version, wait, sockp, sendsz, recvsz)
- struct sockaddr_in *raddr;
- u_long program;
- u_long version;
- struct timeval wait;
- register int *sockp;
- u_int sendsz;
- u_int recvsz;
-{
- CLIENT *cl;
- register struct cu_data *cu;
- struct timeval now;
- struct rpc_msg call_msg;
-
- cl = (CLIENT *)mem_alloc(sizeof(CLIENT));
- if (cl == NULL) {
- (void) fprintf(stderr, "clntudp_create: out of memory\n");
- rpc_createerr.cf_stat = RPC_SYSTEMERROR;
- rpc_createerr.cf_error.re_errno = errno;
- goto fooy;
- }
- sendsz = ((sendsz + 3) / 4) * 4;
- recvsz = ((recvsz + 3) / 4) * 4;
- cu = (struct cu_data *)mem_alloc(sizeof(*cu) + sendsz + recvsz);
- if (cu == NULL) {
- (void) fprintf(stderr, "clntudp_create: out of memory\n");
- rpc_createerr.cf_stat = RPC_SYSTEMERROR;
- rpc_createerr.cf_error.re_errno = errno;
- goto fooy;
- }
- cu->cu_outbuf = &cu->cu_inbuf[recvsz];
-
- (void)gettimeofday(&now, (struct timezone *)0);
- if (raddr->sin_port == 0) {
- u_short port;
- if ((port =
- pmap_getport(raddr, program, version, IPPROTO_UDP)) == 0) {
- goto fooy;
- }
- raddr->sin_port = htons(port);
- }
- cl->cl_ops = &udp_ops;
- cl->cl_private = (caddr_t)cu;
- cu->cu_raddr = *raddr;
- cu->cu_rlen = sizeof (cu->cu_raddr);
- cu->cu_wait = wait;
- cu->cu_total.tv_sec = -1;
- cu->cu_total.tv_usec = -1;
- cu->cu_sendsz = sendsz;
- cu->cu_recvsz = recvsz;
- call_msg.rm_xid = getpid() ^ now.tv_sec ^ now.tv_usec;
- call_msg.rm_direction = CALL;
- call_msg.rm_call.cb_rpcvers = RPC_MSG_VERSION;
- call_msg.rm_call.cb_prog = program;
- call_msg.rm_call.cb_vers = version;
- xdrmem_create(&(cu->cu_outxdrs), cu->cu_outbuf,
- sendsz, XDR_ENCODE);
- if (! xdr_callhdr(&(cu->cu_outxdrs), &call_msg)) {
- goto fooy;
- }
- cu->cu_xdrpos = XDR_GETPOS(&(cu->cu_outxdrs));
- if (*sockp < 0) {
- int dontblock = 1;
-
- *sockp = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
- if (*sockp < 0) {
- rpc_createerr.cf_stat = RPC_SYSTEMERROR;
- rpc_createerr.cf_error.re_errno = errno;
- goto fooy;
- }
- /* attempt to bind to prov port */
- (void)bindresvport(*sockp, (struct sockaddr_in *)0);
- /* the sockets rpc controls are non-blocking */
- (void)ioctl(*sockp, FIONBIO, (char *) &dontblock);
- cu->cu_closeit = TRUE;
- } else {
- cu->cu_closeit = FALSE;
- }
- cu->cu_sock = *sockp;
- cl->cl_auth = authnone_create();
- return (cl);
-fooy:
- if (cu)
- mem_free((caddr_t)cu, sizeof(*cu) + sendsz + recvsz);
- if (cl)
- mem_free((caddr_t)cl, sizeof(CLIENT));
- return ((CLIENT *)NULL);
-}
-
-CLIENT *
-clntudp_create(raddr, program, version, wait, sockp)
- struct sockaddr_in *raddr;
- u_long program;
- u_long version;
- struct timeval wait;
- register int *sockp;
-{
-
- return(clntudp_bufcreate(raddr, program, version, wait, sockp,
- UDPMSGSIZE, UDPMSGSIZE));
-}
-
-static enum clnt_stat
-clntudp_call(cl, proc, xargs, argsp, xresults, resultsp, utimeout)
- register CLIENT *cl; /* client handle */
- u_long proc; /* procedure number */
- xdrproc_t xargs; /* xdr routine for args */
- caddr_t argsp; /* pointer to args */
- xdrproc_t xresults; /* xdr routine for results */
- caddr_t resultsp; /* pointer to results */
- struct timeval utimeout; /* seconds to wait before giving up */
-{
- register struct cu_data *cu = (struct cu_data *)cl->cl_private;
- register XDR *xdrs;
- register int outlen;
- register int inlen;
- int fromlen;
-#ifdef FD_SETSIZE
- fd_set readfds;
- fd_set mask;
-#else
- int readfds;
- register int mask;
-#endif /* def FD_SETSIZE */
- struct sockaddr_in from;
- struct rpc_msg reply_msg;
- XDR reply_xdrs;
- struct timeval time_waited;
- bool_t ok;
- int nrefreshes = 2; /* number of times to refresh cred */
- struct timeval timeout;
-
- if (cu->cu_total.tv_usec == -1) {
- timeout = utimeout; /* use supplied timeout */
- } else {
- timeout = cu->cu_total; /* use default timeout */
- }
-
- time_waited.tv_sec = 0;
- time_waited.tv_usec = 0;
-call_again:
- xdrs = &(cu->cu_outxdrs);
- xdrs->x_op = XDR_ENCODE;
- XDR_SETPOS(xdrs, cu->cu_xdrpos);
- /*
- * the transaction is the first thing in the out buffer
- */
- (*(u_short *)(cu->cu_outbuf))++;
- if ((! XDR_PUTLONG(xdrs, (long *)&proc)) ||
- (! AUTH_MARSHALL(cl->cl_auth, xdrs)) ||
- (! (*xargs)(xdrs, argsp)))
- return (cu->cu_error.re_status = RPC_CANTENCODEARGS);
- outlen = (int)XDR_GETPOS(xdrs);
-
-send_again:
- if (sendto(cu->cu_sock, cu->cu_outbuf, outlen, 0,
- (struct sockaddr *)&(cu->cu_raddr), cu->cu_rlen)
- != outlen) {
- cu->cu_error.re_errno = errno;
- return (cu->cu_error.re_status = RPC_CANTSEND);
- }
-
- /*
- * Hack to provide rpc-based message passing
- */
- if (timeout.tv_sec == 0 && timeout.tv_usec == 0) {
- return (cu->cu_error.re_status = RPC_TIMEDOUT);
- }
- /*
- * sub-optimal code appears here because we have
- * some clock time to spare while the packets are in flight.
- * (We assume that this is actually only executed once.)
- */
- reply_msg.acpted_rply.ar_verf = _null_auth;
- reply_msg.acpted_rply.ar_results.where = resultsp;
- reply_msg.acpted_rply.ar_results.proc = xresults;
-#ifdef FD_SETSIZE
- FD_ZERO(&mask);
- FD_SET(cu->cu_sock, &mask);
-#else
- mask = 1 << cu->cu_sock;
-#endif /* def FD_SETSIZE */
- for (;;) {
- readfds = mask;
- switch (select(_rpc_dtablesize(), &readfds, (int *)NULL,
- (int *)NULL, &(cu->cu_wait))) {
-
- case 0:
- time_waited.tv_sec += cu->cu_wait.tv_sec;
- time_waited.tv_usec += cu->cu_wait.tv_usec;
- while (time_waited.tv_usec >= 1000000) {
- time_waited.tv_sec++;
- time_waited.tv_usec -= 1000000;
- }
- if ((time_waited.tv_sec < timeout.tv_sec) ||
- ((time_waited.tv_sec == timeout.tv_sec) &&
- (time_waited.tv_usec < timeout.tv_usec)))
- goto send_again;
- return (cu->cu_error.re_status = RPC_TIMEDOUT);
-
- /*
- * buggy in other cases because time_waited is not being
- * updated.
- */
- case -1:
- if (errno == EINTR)
- continue;
- cu->cu_error.re_errno = errno;
- return (cu->cu_error.re_status = RPC_CANTRECV);
- }
- do {
- fromlen = sizeof(struct sockaddr);
- inlen = recvfrom(cu->cu_sock, cu->cu_inbuf,
- (int) cu->cu_recvsz, 0,
- (struct sockaddr *)&from, &fromlen);
- } while (inlen < 0 && errno == EINTR);
- if (inlen < 0) {
- if (errno == EWOULDBLOCK)
- continue;
- cu->cu_error.re_errno = errno;
- return (cu->cu_error.re_status = RPC_CANTRECV);
- }
- if (inlen < sizeof(u_long))
- continue;
- /* see if reply transaction id matches sent id */
- if (*((u_long *)(cu->cu_inbuf)) != *((u_long *)(cu->cu_outbuf)))
- continue;
- /* we now assume we have the proper reply */
- break;
- }
-
- /*
- * now decode and validate the response
- */
- xdrmem_create(&reply_xdrs, cu->cu_inbuf, (u_int)inlen, XDR_DECODE);
- ok = xdr_replymsg(&reply_xdrs, &reply_msg);
- /* XDR_DESTROY(&reply_xdrs); save a few cycles on noop destroy */
- if (ok) {
- _seterr_reply(&reply_msg, &(cu->cu_error));
- if (cu->cu_error.re_status == RPC_SUCCESS) {
- if (! AUTH_VALIDATE(cl->cl_auth,
- &reply_msg.acpted_rply.ar_verf)) {
- cu->cu_error.re_status = RPC_AUTHERROR;
- cu->cu_error.re_why = AUTH_INVALIDRESP;
- }
- if (reply_msg.acpted_rply.ar_verf.oa_base != NULL) {
- xdrs->x_op = XDR_FREE;
- (void)xdr_opaque_auth(xdrs,
- &(reply_msg.acpted_rply.ar_verf));
- }
- } /* end successful completion */
- else {
- /* maybe our credentials need to be refreshed ... */
- if (nrefreshes > 0 && AUTH_REFRESH(cl->cl_auth)) {
- nrefreshes--;
- goto call_again;
- }
- } /* end of unsuccessful completion */
- } /* end of valid reply message */
- else {
- cu->cu_error.re_status = RPC_CANTDECODERES;
- }
- return (cu->cu_error.re_status);
-}
-
-static void
-clntudp_geterr(cl, errp)
- CLIENT *cl;
- struct rpc_err *errp;
-{
- register struct cu_data *cu = (struct cu_data *)cl->cl_private;
-
- *errp = cu->cu_error;
-}
-
-
-static bool_t
-clntudp_freeres(cl, xdr_res, res_ptr)
- CLIENT *cl;
- xdrproc_t xdr_res;
- caddr_t res_ptr;
-{
- register struct cu_data *cu = (struct cu_data *)cl->cl_private;
- register XDR *xdrs = &(cu->cu_outxdrs);
-
- xdrs->x_op = XDR_FREE;
- return ((*xdr_res)(xdrs, res_ptr));
-}
-
-static void
-clntudp_abort(/*h*/)
- /*CLIENT *h;*/
-{
-}
-
-static bool_t
-clntudp_control(cl, request, info)
- CLIENT *cl;
- int request;
- char *info;
-{
- register struct cu_data *cu = (struct cu_data *)cl->cl_private;
-
- switch (request) {
- case CLSET_TIMEOUT:
- cu->cu_total = *(struct timeval *)info;
- break;
- case CLGET_TIMEOUT:
- *(struct timeval *)info = cu->cu_total;
- break;
- case CLSET_RETRY_TIMEOUT:
- cu->cu_wait = *(struct timeval *)info;
- break;
- case CLGET_RETRY_TIMEOUT:
- *(struct timeval *)info = cu->cu_wait;
- break;
- case CLGET_SERVER_ADDR:
- *(struct sockaddr_in *)info = cu->cu_raddr;
- break;
- default:
- return (FALSE);
- }
- return (TRUE);
-}
-
-static void
-clntudp_destroy(cl)
- CLIENT *cl;
-{
- register struct cu_data *cu = (struct cu_data *)cl->cl_private;
-
- if (cu->cu_closeit) {
- (void)close(cu->cu_sock);
- }
- XDR_DESTROY(&(cu->cu_outxdrs));
- mem_free((caddr_t)cu, (sizeof(*cu) + cu->cu_sendsz + cu->cu_recvsz));
- mem_free((caddr_t)cl, sizeof(CLIENT));
-}
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