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-rw-r--r--c/src/exec/librpc/src/rpc/clnt_unix.c635
1 files changed, 0 insertions, 635 deletions
diff --git a/c/src/exec/librpc/src/rpc/clnt_unix.c b/c/src/exec/librpc/src/rpc/clnt_unix.c
deleted file mode 100644
index 0cfe988595..0000000000
--- a/c/src/exec/librpc/src/rpc/clnt_unix.c
+++ /dev/null
@@ -1,635 +0,0 @@
-/*
- * 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(LIBC_SCCS) && !defined(lint)
-/*static char *sccsid = "from: @(#)clnt_unix.c 1.37 87/10/05 Copyr 1984 Sun Micro";*/
-/*static char *sccsid = "from: @(#)clnt_unix.c 2.2 88/08/01 4.0 RPCSRC";*/
-static char *rcsid = "$FreeBSD: src/lib/libc/rpc/clnt_unix.c,v 1.5 2000/01/27 23:06:37 jasone Exp $";
-#endif
-
-/*
- * clnt_unix.c, Implements a AF_UNIX based, client side RPC.
- *
- * Copyright (C) 1984, Sun Microsystems, Inc.
- *
- * AF_UNIX based RPC supports 'batched calls'.
- * A sequence of calls may be batched-up in a send buffer. The rpc call
- * return immediately to the client even though the call was not necessarily
- * sent. The batching occurs if the results' xdr routine is NULL (0) AND
- * the rpc timeout value is zero (see clnt.h, rpc).
- *
- * Clients should NOT casually batch calls that in fact return results; that is,
- * the server side should be aware that a call is batched and not produce any
- * return message. Batched calls that produce many result messages can
- * deadlock (netlock) the client and the server....
- *
- * Now go hang yourself.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <rpc/rpc.h>
-#include <sys/uio.h>
-#include <sys/socket.h>
-#include <sys/un.h>
-#include <netdb.h>
-#include <errno.h>
-#include <rpc/pmap_clnt.h>
-
-#define MCALL_MSG_SIZE 24
-
-static int readunix();
-static int writeunix();
-
-static enum clnt_stat clntunix_call();
-static void clntunix_abort();
-static void clntunix_geterr();
-static bool_t clntunix_freeres();
-static bool_t clntunix_control();
-static void clntunix_destroy();
-
-static struct clnt_ops unix_ops = {
- clntunix_call,
- clntunix_abort,
- clntunix_geterr,
- clntunix_freeres,
- clntunix_destroy,
- clntunix_control
-};
-
-struct ct_data {
- int ct_sock;
- bool_t ct_closeit;
- struct timeval ct_wait;
- bool_t ct_waitset; /* wait set by clnt_control? */
- struct sockaddr_un ct_addr;
- struct rpc_err ct_error;
- char ct_mcall[MCALL_MSG_SIZE]; /* marshalled callmsg */
- u_int ct_mpos; /* pos after marshal */
- XDR ct_xdrs;
-};
-
-/*
- * Create a client handle for a unix/ip connection.
- * If *sockp<0, *sockp is set to a newly created TCP socket and it is
- * connected to raddr. If *sockp non-negative then
- * raddr is ignored. The rpc/unix package does buffering
- * similar to stdio, so the client must pick send and receive buffer sizes,];
- * 0 => use the default.
- * If raddr->sin_port is 0, then a binder on the remote machine is
- * consulted for the right port number.
- * NB: *sockp is copied into a private area.
- * NB: It is the clients responsibility to close *sockp.
- * NB: The rpch->cl_auth is set null authentication. Caller may wish to set this
- * something more useful.
- */
-CLIENT *
-clntunix_create(raddr, prog, vers, sockp, sendsz, recvsz)
- struct sockaddr_un *raddr;
- u_long prog;
- u_long vers;
- register int *sockp;
- u_int sendsz;
- u_int recvsz;
-{
- CLIENT *h;
- register struct ct_data *ct = NULL;
- struct timeval now;
- struct rpc_msg call_msg;
- static u_int32_t disrupt;
- int len;
-
- if (disrupt == 0)
- disrupt = (u_int32_t)(long)raddr;
-
- h = (CLIENT *)mem_alloc(sizeof(*h));
- if (h == NULL) {
- (void)fprintf(stderr, "clntunix_create: out of memory\n");
- rpc_createerr.cf_stat = RPC_SYSTEMERROR;
- rpc_createerr.cf_error.re_errno = errno;
- goto fooy;
- }
- ct = (struct ct_data *)mem_alloc(sizeof(*ct));
- if (ct == NULL) {
- (void)fprintf(stderr, "clntunix_create: out of memory\n");
- rpc_createerr.cf_stat = RPC_SYSTEMERROR;
- rpc_createerr.cf_error.re_errno = errno;
- goto fooy;
- }
-
- /*
- * If no socket given, open one
- */
- if (*sockp < 0) {
- *sockp = socket(AF_UNIX, SOCK_STREAM, 0);
- len = strlen(raddr->sun_path) + sizeof(raddr->sun_family) +
- sizeof(raddr->sun_len) + 1;
- raddr->sun_len = len;
- if ((*sockp < 0)
- || (connect(*sockp, (struct sockaddr *)raddr, len) < 0)) {
- rpc_createerr.cf_stat = RPC_SYSTEMERROR;
- rpc_createerr.cf_error.re_errno = errno;
- if (*sockp != -1)
- (void)_RPC_close(*sockp);
- goto fooy;
- }
- ct->ct_closeit = TRUE;
- } else {
- ct->ct_closeit = FALSE;
- }
-
- /*
- * Set up private data struct
- */
- ct->ct_sock = *sockp;
- ct->ct_wait.tv_usec = 0;
- ct->ct_waitset = FALSE;
- ct->ct_addr = *raddr;
-
- /*
- * Initialize call message
- */
- (void)gettimeofday(&now, (struct timezone *)0);
- call_msg.rm_xid = (++disrupt) ^ 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 = prog;
- call_msg.rm_call.cb_vers = vers;
-
- /*
- * pre-serialize the static part of the call msg and stash it away
- */
- xdrmem_create(&(ct->ct_xdrs), ct->ct_mcall, MCALL_MSG_SIZE,
- XDR_ENCODE);
- if (! xdr_callhdr(&(ct->ct_xdrs), &call_msg)) {
- if (ct->ct_closeit) {
- (void)_RPC_close(*sockp);
- }
- goto fooy;
- }
- ct->ct_mpos = XDR_GETPOS(&(ct->ct_xdrs));
- XDR_DESTROY(&(ct->ct_xdrs));
-
- /*
- * Create a client handle which uses xdrrec for serialization
- * and authnone for authentication.
- */
- xdrrec_create(&(ct->ct_xdrs), sendsz, recvsz,
- (caddr_t)ct, readunix, writeunix);
- h->cl_ops = &unix_ops;
- h->cl_private = (caddr_t) ct;
- h->cl_auth = authnone_create();
- return (h);
-
-fooy:
- /*
- * Something goofed, free stuff and barf
- */
- if (ct)
- mem_free((caddr_t)ct, sizeof(struct ct_data));
- if (h)
- mem_free((caddr_t)h, sizeof(CLIENT));
- return ((CLIENT *)NULL);
-}
-
-static enum clnt_stat
-clntunix_call(h, proc, xdr_args, args_ptr, xdr_results, results_ptr, timeout)
- register CLIENT *h;
- u_long proc;
- xdrproc_t xdr_args;
- caddr_t args_ptr;
- xdrproc_t xdr_results;
- caddr_t results_ptr;
- struct timeval timeout;
-{
- register struct ct_data *ct = (struct ct_data *) h->cl_private;
- register XDR *xdrs = &(ct->ct_xdrs);
- struct rpc_msg reply_msg;
- u_long x_id;
- u_int32_t *msg_x_id = (u_int32_t *)(ct->ct_mcall); /* yuk */
- register bool_t shipnow;
- int refreshes = 2;
-
- if (!ct->ct_waitset) {
- ct->ct_wait = timeout;
- }
-
- shipnow =
- (xdr_results == (xdrproc_t)0 && timeout.tv_sec == 0
- && timeout.tv_usec == 0) ? FALSE : TRUE;
-
-call_again:
- xdrs->x_op = XDR_ENCODE;
- ct->ct_error.re_status = RPC_SUCCESS;
- x_id = ntohl(--(*msg_x_id));
- if ((! XDR_PUTBYTES(xdrs, ct->ct_mcall, ct->ct_mpos)) ||
- (! XDR_PUTLONG(xdrs, (long *)&proc)) ||
- (! AUTH_MARSHALL(h->cl_auth, xdrs)) ||
- (! (*xdr_args)(xdrs, args_ptr))) {
- if (ct->ct_error.re_status == RPC_SUCCESS)
- ct->ct_error.re_status = RPC_CANTENCODEARGS;
- (void)xdrrec_endofrecord(xdrs, TRUE);
- return (ct->ct_error.re_status);
- }
- if (! xdrrec_endofrecord(xdrs, shipnow))
- return (ct->ct_error.re_status = RPC_CANTSEND);
- if (! shipnow)
- return (RPC_SUCCESS);
- /*
- * Hack to provide rpc-based message passing
- */
- if (timeout.tv_sec == 0 && timeout.tv_usec == 0) {
- return(ct->ct_error.re_status = RPC_TIMEDOUT);
- }
-
-
- /*
- * Keep receiving until we get a valid transaction id
- */
- xdrs->x_op = XDR_DECODE;
- while (TRUE) {
- reply_msg.acpted_rply.ar_verf = _null_auth;
- reply_msg.acpted_rply.ar_results.where = NULL;
- reply_msg.acpted_rply.ar_results.proc = xdr_void;
- if (! xdrrec_skiprecord(xdrs))
- return (ct->ct_error.re_status);
- /* now decode and validate the response header */
- if (! xdr_replymsg(xdrs, &reply_msg)) {
- if (ct->ct_error.re_status == RPC_SUCCESS)
- continue;
- return (ct->ct_error.re_status);
- }
- if (reply_msg.rm_xid == x_id)
- break;
- }
-
- /*
- * process header
- */
- _seterr_reply(&reply_msg, &(ct->ct_error));
- if (ct->ct_error.re_status == RPC_SUCCESS) {
- if (! AUTH_VALIDATE(h->cl_auth, &reply_msg.acpted_rply.ar_verf)) {
- ct->ct_error.re_status = RPC_AUTHERROR;
- ct->ct_error.re_why = AUTH_INVALIDRESP;
- } else if (! (*xdr_results)(xdrs, results_ptr)) {
- if (ct->ct_error.re_status == RPC_SUCCESS)
- ct->ct_error.re_status = RPC_CANTDECODERES;
- }
- /* free verifier ... */
- 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 (refreshes-- && AUTH_REFRESH(h->cl_auth))
- goto call_again;
- } /* end of unsuccessful completion */
- return (ct->ct_error.re_status);
-}
-
-static void
-clntunix_geterr(h, errp)
- CLIENT *h;
- struct rpc_err *errp;
-{
- register struct ct_data *ct =
- (struct ct_data *) h->cl_private;
-
- *errp = ct->ct_error;
-}
-
-static bool_t
-clntunix_freeres(cl, xdr_res, res_ptr)
- CLIENT *cl;
- xdrproc_t xdr_res;
- caddr_t res_ptr;
-{
- register struct ct_data *ct = (struct ct_data *)cl->cl_private;
- register XDR *xdrs = &(ct->ct_xdrs);
-
- xdrs->x_op = XDR_FREE;
- return ((*xdr_res)(xdrs, res_ptr));
-}
-
-static void
-clntunix_abort()
-{
-}
-
-
-static bool_t
-clntunix_control(cl, request, info)
- CLIENT *cl;
- int request;
- char *info;
-{
- register struct ct_data *ct = (struct ct_data *)cl->cl_private;
- register struct timeval *tv;
- int len;
-
- switch (request) {
- case CLSET_FD_CLOSE:
- ct->ct_closeit = TRUE;
- break;
- case CLSET_FD_NCLOSE:
- ct->ct_closeit = FALSE;
- break;
- case CLSET_TIMEOUT:
- if (info == NULL)
- return(FALSE);
- tv = (struct timeval *)info;
- ct->ct_wait.tv_sec = tv->tv_sec;
- ct->ct_wait.tv_usec = tv->tv_usec;
- ct->ct_waitset = TRUE;
- break;
- case CLGET_TIMEOUT:
- if (info == NULL)
- return(FALSE);
- *(struct timeval *)info = ct->ct_wait;
- break;
- case CLGET_SERVER_ADDR:
- if (info == NULL)
- return(FALSE);
- *(struct sockaddr_un *)info = ct->ct_addr;
- break;
- case CLGET_FD:
- if (info == NULL)
- return(FALSE);
- *(int *)info = ct->ct_sock;
- break;
- case CLGET_XID:
- /*
- * use the knowledge that xid is the
- * first element in the call structure *.
- * This will get the xid of the PREVIOUS call
- */
- if (info == NULL)
- return(FALSE);
- *(u_long *)info = ntohl(*(u_long *)ct->ct_mcall);
- break;
- case CLSET_XID:
- /* This will set the xid of the NEXT call */
- if (info == NULL)
- return(FALSE);
- *(u_long *)ct->ct_mcall = htonl(*(u_long *)info - 1);
- /* decrement by 1 as clntunix_call() increments once */
- case CLGET_VERS:
- /*
- * This RELIES on the information that, in the call body,
- * the version number field is the fifth field from the
- * begining of the RPC header. MUST be changed if the
- * call_struct is changed
- */
- if (info == NULL)
- return(FALSE);
- *(u_long *)info = ntohl(*(u_long *)(ct->ct_mcall +
- 4 * BYTES_PER_XDR_UNIT));
- break;
- case CLSET_VERS:
- if (info == NULL)
- return(FALSE);
- *(u_long *)(ct->ct_mcall + 4 * BYTES_PER_XDR_UNIT)
- = htonl(*(u_long *)info);
- break;
- case CLGET_PROG:
- /*
- * This RELIES on the information that, in the call body,
- * the program number field is the field from the
- * begining of the RPC header. MUST be changed if the
- * call_struct is changed
- */
- if (info == NULL)
- return(FALSE);
- *(u_long *)info = ntohl(*(u_long *)(ct->ct_mcall +
- 3 * BYTES_PER_XDR_UNIT));
- break;
- case CLSET_PROG:
- if (info == NULL)
- return(FALSE);
- *(u_long *)(ct->ct_mcall + 3 * BYTES_PER_XDR_UNIT)
- = htonl(*(u_long *)info);
- break;
- case CLGET_LOCAL_ADDR:
- len = sizeof(struct sockaddr);
- if (getsockname(ct->ct_sock, (struct sockaddr *)info, &len) <0)
- return(FALSE);
- break;
- case CLGET_RETRY_TIMEOUT:
- case CLSET_RETRY_TIMEOUT:
- case CLGET_SVC_ADDR:
- case CLSET_SVC_ADDR:
- case CLSET_PUSH_TIMOD:
- case CLSET_POP_TIMOD:
- default:
- return (FALSE);
- }
- return (TRUE);
-}
-
-
-static void
-clntunix_destroy(h)
- CLIENT *h;
-{
- register struct ct_data *ct =
- (struct ct_data *) h->cl_private;
-
- if (ct->ct_closeit) {
- (void)_RPC_close(ct->ct_sock);
- }
- XDR_DESTROY(&(ct->ct_xdrs));
- mem_free((caddr_t)ct, sizeof(struct ct_data));
- mem_free((caddr_t)h, sizeof(CLIENT));
-}
-
-/*
- * read() and write() are replaced with recvmsg()/sendmsg() so that
- * we can pass ancillary control data. In this case, the data constists
- * of credential information which the kernel will fill in for us.
- * XXX: This code is specific to FreeBSD and will not work on other
- * platforms without the requisite kernel modifications.
- */
-struct cmessage {
- struct cmsghdr cmsg;
- struct cmsgcred cmcred;
-};
-
-static int __msgread(sock, buf, cnt)
- int sock;
- void *buf;
- size_t cnt;
-{
- struct iovec iov[1];
- struct msghdr msg;
- struct cmessage cm;
-
- bzero((char *)&cm, sizeof(cm));
- iov[0].iov_base = buf;
- iov[0].iov_len = cnt;
-
- msg.msg_iov = iov;
- msg.msg_iovlen = 1;
- msg.msg_name = NULL;
- msg.msg_namelen = 0;
- msg.msg_control = (caddr_t)&cm;
- msg.msg_controllen = sizeof(struct cmessage);
- msg.msg_flags = 0;
-
- return(recvmsg(sock, &msg, 0));
-}
-
-static int __msgwrite(sock, buf, cnt)
- int sock;
- void *buf;
- size_t cnt;
-{
- struct iovec iov[1];
- struct msghdr msg;
- struct cmessage cm;
-
- bzero((char *)&cm, sizeof(cm));
- iov[0].iov_base = buf;
- iov[0].iov_len = cnt;
-
- cm.cmsg.cmsg_type = SCM_CREDS;
- cm.cmsg.cmsg_level = SOL_SOCKET;
- cm.cmsg.cmsg_len = sizeof(struct cmessage);
-
- msg.msg_iov = iov;
- msg.msg_iovlen = 1;
- msg.msg_name = NULL;
- msg.msg_namelen = 0;
- msg.msg_control = (caddr_t)&cm;
- msg.msg_controllen = sizeof(struct cmessage);
- msg.msg_flags = 0;
-
- return(sendmsg(sock, &msg, 0));
-}
-
-/*
- * Interface between xdr serializer and unix connection.
- * Behaves like the system calls, read & write, but keeps some error state
- * around for the rpc level.
- */
-static int
-readunix(ct, buf, len)
- register struct ct_data *ct;
- caddr_t buf;
- register int len;
-{
- fd_set *fds, readfds;
- struct timeval start, after, duration, delta, tmp, tv;
- int r, save_errno;
-
- if (len == 0)
- return (0);
-
- if (ct->ct_sock + 1 > FD_SETSIZE) {
- int bytes = howmany(ct->ct_sock + 1, NFDBITS) * sizeof(fd_mask);
- fds = (fd_set *)malloc(bytes);
- if (fds == NULL)
- return (-1);
- memset(fds, 0, bytes);
- } else {
- fds = &readfds;
- FD_ZERO(fds);
- }
-
- gettimeofday(&start, NULL);
- delta = ct->ct_wait;
- while (TRUE) {
- /* XXX we know the other bits are still clear */
- FD_SET(ct->ct_sock, fds);
- tv = delta; /* in case select writes back */
- r = select(ct->ct_sock+1, fds, NULL, NULL, &tv);
- save_errno = errno;
-
- gettimeofday(&after, NULL);
- timersub(&start, &after, &duration);
- timersub(&delta, &duration, &tmp);
- delta = tmp;
- if (delta.tv_sec < 0 || !timerisset(&delta))
- r = 0;
-
- switch (r) {
- case 0:
- if (fds != &readfds)
- free(fds);
- ct->ct_error.re_status = RPC_TIMEDOUT;
- return (-1);
-
- case -1:
- if (errno == EINTR)
- continue;
- if (fds != &readfds)
- free(fds);
- ct->ct_error.re_status = RPC_CANTRECV;
- ct->ct_error.re_errno = save_errno;
- return (-1);
- }
- break;
- }
- switch (len = __msgread(ct->ct_sock, buf, len)) {
-
- case 0:
- /* premature eof */
- ct->ct_error.re_errno = ECONNRESET;
- ct->ct_error.re_status = RPC_CANTRECV;
- len = -1; /* it's really an error */
- break;
-
- case -1:
- ct->ct_error.re_errno = errno;
- ct->ct_error.re_status = RPC_CANTRECV;
- break;
- }
- return (len);
-}
-
-static int
-writeunix(ct, buf, len)
- struct ct_data *ct;
- caddr_t buf;
- int len;
-{
- register int i, cnt;
-
- for (cnt = len; cnt > 0; cnt -= i, buf += i) {
- if ((i = __msgwrite(ct->ct_sock, buf, cnt)) == -1) {
- ct->ct_error.re_errno = errno;
- ct->ct_error.re_status = RPC_CANTSEND;
- return (-1);
- }
- }
- return (len);
-}