]> git.sesse.net Git - rdpsrv/blobdiff - Xserver/lib/xtrans/Xtranslcl.c
Import X server from vnc-3.3.7.
[rdpsrv] / Xserver / lib / xtrans / Xtranslcl.c
diff --git a/Xserver/lib/xtrans/Xtranslcl.c b/Xserver/lib/xtrans/Xtranslcl.c
new file mode 100644 (file)
index 0000000..7a0c5b5
--- /dev/null
@@ -0,0 +1,2666 @@
+/* $XConsortium: Xtranslcl.c /main/27 1996/09/28 16:50:14 rws $ */
+/* $XFree86: xc/lib/xtrans/Xtranslcl.c,v 3.21.2.3 1998/02/01 16:04:34 robin Exp $ */
+/*
+
+Copyright (c) 1993, 1994  X Consortium
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of the X Consortium shall
+not be used in advertising or otherwise to promote the sale, use or
+other dealings in this Software without prior written authorization
+from the X Consortium.
+
+*/
+
+/* Copyright (c) 1993, 1994 NCR Corporation - Dayton, Ohio, USA
+ *
+ * All Rights Reserved
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose and without fee is hereby granted, provided
+ * that the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name NCR not be used in advertising
+ * or publicity pertaining to distribution of the software without specific,
+ * written prior permission.  NCR makes no representations about the
+ * suitability of this software for any purpose.  It is provided "as is"
+ * without express or implied warranty.
+ *
+ * NCR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
+ * NO EVENT SHALL NCR BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+ * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+ * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ *
+ * The connection code/ideas in lib/X and server/os for SVR4/Intel 
+ * environments was contributed by the following companies/groups:
+ *
+ *     MetroLink Inc
+ *     NCR
+ *     Pittsburgh Powercomputing Corporation (PPc)/Quarterdeck Office Systems
+ *     SGCS
+ *     Unix System Laboratories (USL) / Novell
+ *     XFree86
+ *
+ * The goal is to have common connection code among all SVR4/Intel vendors.
+ *
+ * ALL THE ABOVE COMPANIES DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS 
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, 
+ * IN NO EVENT SHALL THESE COMPANIES * BE LIABLE FOR ANY SPECIAL, INDIRECT 
+ * OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS 
+ * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE 
+ * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE 
+ * OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <errno.h>
+#include <ctype.h>
+#include <sys/signal.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#ifdef SVR4
+#include <sys/filio.h>
+#endif
+#include <sys/stropts.h>
+#include <sys/wait.h>
+
+/*
+ * The local transports should be treated the same as a UNIX domain socket
+ * wrt authentication, etc. Because of this, we will use struct sockaddr_un
+ * for the address format. This will simplify the code in other places like
+ * The X Server.
+ */
+
+#include <sys/socket.h>
+#ifndef X_NO_SYS_UN
+#include <sys/un.h>
+#endif
+
+#if defined(ISC) && !defined(_POSIX_SOURCE)
+typedef unsigned short  mode_t;
+/* POSIX needed for mode_t define in sys/types.h */
+#endif
+
+/*
+ * These functions actually implement the local connection mechanisms.
+ */
+
+/* Type Not Supported */
+
+static int
+TRANS(OpenFail)(ciptr, port)
+
+XtransConnInfo ciptr;
+char           *port;
+
+{
+    return -1;
+}
+
+#ifdef TRANS_REOPEN
+
+static int
+TRANS(ReopenFail)(ciptr, fd, port)
+
+XtransConnInfo ciptr;
+int            fd;
+char           *port;
+
+{
+    return 0;
+}
+
+#endif /* TRANS_REOPEN */
+
+
+\f
+static int
+TRANS(FillAddrInfo)(ciptr, sun_path, peer_sun_path)
+
+XtransConnInfo ciptr;
+char           *sun_path;
+char           *peer_sun_path;
+
+{
+    struct sockaddr_un *sunaddr;
+    struct sockaddr_un *p_sunaddr;
+
+    ciptr->family = AF_UNIX;
+    ciptr->addrlen = sizeof (struct sockaddr_un);
+
+    if ((sunaddr = (struct sockaddr_un *) xalloc (ciptr->addrlen)) == NULL)
+    {
+       PRMSG(1,"FillAddrInfo: failed to allocate memory for addr\n",
+                                                                       0,0,0);
+       return 0;
+    }
+
+    sunaddr->sun_family = AF_UNIX;
+
+    strcpy (sunaddr->sun_path, sun_path);
+#if defined(BSD44SOCKETS) && !defined(Lynx)
+    sunaddr->sun_len = strlen (sunaddr->sun_path);
+#endif
+
+    ciptr->addr = (char *) sunaddr;
+
+    ciptr->peeraddrlen = sizeof (struct sockaddr_un);
+
+    if ((p_sunaddr = (struct sockaddr_un *) xalloc (
+       ciptr->peeraddrlen)) == NULL)
+    {
+       PRMSG(1,
+          "FillAddrInfo: failed to allocate memory for peer addr\n",
+                                                                       0,0,0);
+       xfree ((char *) sunaddr);
+       ciptr->addr = NULL;
+
+       return 0;
+    }
+
+    p_sunaddr->sun_family = AF_UNIX;
+
+    strcpy (p_sunaddr->sun_path, peer_sun_path);
+#if defined(BSD44SOCKETS) && !defined(Lynx)
+    p_sunaddr->sun_len = strlen (p_sunaddr->sun_path);
+#endif
+
+    ciptr->peeraddr = (char *) p_sunaddr;
+
+    return 1;
+}
+
+
+\f
+/* PTS */
+
+#if defined(SYSV) && !defined(sco) && !defined(SCO) && !defined(ISC)
+#define SIGNAL_T int
+#else
+#define SIGNAL_T void
+#endif /* SYSV */
+
+typedef SIGNAL_T (*PFV)();
+
+extern PFV signal();
+
+extern char *ptsname(
+#if NeedFunctionPrototypes
+    int
+#endif
+);
+
+static void _dummy(sig)
+
+int sig;
+
+{
+}
+
+#define X_STREAMS_DIR  "/dev/X"
+#define DEV_PTMX       "/dev/ptmx"
+#define DEV_SPX                "/dev/spx"
+
+#if defined(X11_t)
+
+#define PTSNODENAME "/dev/X/server."
+#define NAMEDNODENAME "/dev/X/Nserver."
+
+/*
+ * ISC and SCO are only defined for X11 since they are there for
+ * backwards binary compatability only.
+ */
+
+#define X_ISC_DIR      "/dev/X/ISCCONN"
+#define ISCDEVNODENAME "/dev/X/ISCCONN/X%s"
+#define ISCTMPNODENAME "/tmp/.X11-unix/X%s"
+#define SCORNODENAME   "/dev/X%1sR"
+#define SCOSNODENAME   "/dev/X%1sS"
+#endif
+#if defined(XIM_t)
+#define PTSNODENAME    "/dev/X/XIM."
+#define NAMEDNODENAME  "/dev/X/NXIM."
+#endif
+#if defined(FS_t) || defined (FONT_t)
+/*
+ * USL has already defined something here. We need to check with them
+ * and see if their choice is usable here.
+ */
+#define PTSNODENAME    "/dev/X/fontserver."
+#define NAMEDNODENAME  "/dev/X/Nfontserver."
+#endif
+#if defined(ICE_t)
+#define PTSNODENAME    "/dev/X/ICE."
+#define NAMEDNODENAME  "/dev/X/NICE."
+#endif
+#if defined(TEST_t)
+#define PTSNODENAME    "/dev/X/transtest."
+#define NAMEDNODENAME  "/dev/X/Ntranstest."
+#endif
+
+
+\f
+#ifdef TRANS_CLIENT
+
+static int
+TRANS(PTSOpenClient)(ciptr, port)
+
+XtransConnInfo ciptr;
+char           *port;
+
+{
+    int                        fd,server,exitval,alarm_time,ret;
+    char               server_path[64];
+    char               *slave, namelen;
+    char               buf[20]; /* MAX_PATH_LEN?? */
+    PFV                        savef;
+
+    PRMSG(2,"PTSOpenClient(%s)\n", port, 0,0 );
+
+#if !defined(PTSNODENAME)
+    PRMSG(1,"PTSOpenClient: Protocol is not supported by a pts connection\n", 0,0,0);
+    return -1;
+#else
+    if (port && *port ) {
+       if( *port == '/' ) { /* A full pathname */
+               (void) sprintf(server_path, "%s", port);
+           } else {
+               (void) sprintf(server_path, "%s%s", PTSNODENAME, port);
+           }
+    } else {
+       (void) sprintf(server_path, "%s%d", PTSNODENAME, getpid());
+    }
+
+
+    /*
+     * Open the node the on which the server is listening.
+     */
+
+    if ((server = open (server_path, O_RDWR)) < 0) {
+       PRMSG(1,"PTSOpenClient: failed to open %s\n", server_path, 0,0);
+       return -1;
+    }
+
+
+    /*
+     * Open the streams based pipe that will be this connection.
+     */
+
+    if ((fd = open("/dev/ptmx", O_RDWR)) < 0) {
+       PRMSG(1,"PTSOpenClient: failed to open /dev/ptmx\n", 0,0,0);
+       return -1;
+    }
+
+    (void) grantpt(fd);
+    (void) unlockpt(fd);
+
+    slave = ptsname(fd); /* get name */
+
+    if( slave == NULL ) {
+       PRMSG(1,"PTSOpenClient: failed to get ptsname()\n", 0,0,0);
+       close(fd);
+       close(server);
+       return -1;
+    }
+
+    /*
+     * This is neccesary for the case where a program is setuid to non-root.
+     * grantpt() calls /usr/lib/pt_chmod which is set-uid root. This program will
+     * set the owner of the pt device incorrectly if the uid is not restored
+     * before it is called. The problem is that once it gets restored, it
+     * cannot be changed back to its original condition, hence the fork().
+     */
+
+    if( !fork()) {
+       uid_t       saved_euid;
+
+       saved_euid = geteuid();
+       setuid( getuid() ); /** sets the euid to the actual/real uid **/
+       if( chown( slave, saved_euid, -1 ) < 0 ) {
+               exit( 1 );
+               }
+
+       exit( 0 );
+    }
+
+    wait( &exitval );
+
+    if (chmod(slave, 0666) < 0) {
+       close(fd);
+       close(server);
+       PRMSG(1,"PTSOpenClient: Cannot chmod %s\n", slave, 0,0);
+       return(-1);
+    }
+
+    /*
+     * write slave name to server
+     */
+
+    namelen = strlen(slave);
+    buf[0] = namelen;
+    (void) sprintf(&buf[1], slave);
+    (void) write(server, buf, namelen+1);
+    (void) close(server);
+
+    /*
+     * wait for server to respond
+     */
+
+    savef = signal(SIGALRM, _dummy);
+    alarm_time = alarm (30); /* CONNECT_TIMEOUT */
+
+    ret = read(fd, buf, 1);
+
+    (void) alarm(alarm_time);
+    (void) signal(SIGALRM, savef);
+
+    if (ret != 1) {
+       PRMSG(1,
+       "PTSOpenClient: failed to get acknoledgement from server\n",
+                                                                       0,0,0);
+       (void) close(fd);
+       fd = -1;
+    }
+
+    /*
+     * Everything looks good: fill in the XtransConnInfo structure.
+     */
+
+    if (TRANS(FillAddrInfo) (ciptr, slave, server_path) == 0)
+    {
+       PRMSG(1,"PTSOpenClient: failed to fill in addr info\n",
+                                                               0,0,0);
+       close(fd);
+       return -1;
+    }
+
+    return(fd);
+
+#endif /* !PTSNODENAME */
+}
+
+#endif /* TRANS_CLIENT */
+
+
+#ifdef TRANS_SERVER
+
+static int
+TRANS(PTSOpenServer)(ciptr, port)
+
+XtransConnInfo ciptr;
+char           *port;
+
+{
+    int fd, server;
+    char server_path[64], *slave;
+
+    PRMSG(2,"PTSOpenServer(%s)\n", port, 0,0 );
+
+#if !defined(PTSNODENAME)
+    PRMSG(1,"PTSOpenServer: Protocol is not supported by a pts connection\n", 0,0,0);
+    return -1;
+#else
+    if (port && *port ) {
+       if( *port == '/' ) { /* A full pathname */
+               (void) sprintf(server_path, "%s", port);
+           } else {
+               (void) sprintf(server_path, "%s%s", PTSNODENAME, port);
+           }
+    } else {
+       (void) sprintf(server_path, "%s%d", PTSNODENAME, getpid());
+    }
+
+    mkdir(X_STREAMS_DIR, 0777);
+    chmod(X_STREAMS_DIR, 0777);
+
+    if( (fd=open(server_path, O_RDWR)) >= 0 ) {
+#if 0
+       /*
+        * This doesn't prevent the server from starting up, and doesn't
+        * prevent clients from trying to connect to the in-use PTS (which
+        * is often in use by something other than another server).
+        */
+       PRMSG(1, "PTSOpenServer: A server is already running on port %s\n", port, 0,0 );
+       PRMSG(1, "PTSOpenServer: Remove %s if this is incorrect.\n", server_path, 0,0 );
+       close(fd);
+       return(-1);
+#else
+       /* Just remove the old path (which is what happens with UNIXCONN) */
+       ;
+#endif
+    }
+
+    unlink(server_path);
+
+    if( (fd=open(DEV_PTMX, O_RDWR)) < 0) {
+       PRMSG(1, "PTSOpenServer: Unable to open %s\n", DEV_PTMX, 0,0 );
+       return(-1);
+    }
+
+    grantpt(fd);
+    unlockpt(fd);
+
+    if( (slave=ptsname(fd)) == NULL) {
+       PRMSG(1, "PTSOpenServer: Unable to get slave device name\n", 0,0,0 );
+       close(fd);
+       return(-1);
+    }
+
+    if( link(slave,server_path) < 0 ) {
+       PRMSG(1, "PTSOpenServer: Unable to link %s to %s\n", slave, server_path,0 );
+       close(fd);
+       return(-1);
+    }
+
+    if( chmod(server_path, 0666) < 0 ) {
+       PRMSG(1, "PTSOpenServer: Unable to chmod %s to 0666\n", server_path,0,0 );
+       close(fd);
+       return(-1);
+    }
+
+    if( (server=open(server_path, O_RDWR)) < 0 ) {
+       PRMSG(1, "PTSOpenServer: Unable to open server device %s\n", server_path,0,0 );
+       close(fd);
+       return(-1);
+    }
+
+    close(server);
+
+    /*
+     * Everything looks good: fill in the XtransConnInfo structure.
+     */
+
+    if (TRANS(FillAddrInfo) (ciptr, server_path, server_path) == 0)
+    {
+       PRMSG(1,"PTSOpenServer: failed to fill in addr info\n",
+                                                               0,0,0);
+       close(fd);
+       return -1;
+    }
+
+    return fd;
+
+#endif /* !PTSNODENAME */
+}
+
+static int
+TRANS(PTSAccept)(ciptr, newciptr, status)
+
+XtransConnInfo ciptr;
+XtransConnInfo newciptr;
+int            *status;
+
+{
+    int                        newfd;
+    int                        in;
+    unsigned char      length;
+    char               buf[256];
+    struct sockaddr_un *sunaddr;
+
+    PRMSG(2,"PTSAccept(%x->%d)\n",ciptr,ciptr->fd,0);
+
+    if( (in=read(ciptr->fd,&length,1)) <= 0 ){
+       if( !in ) {
+               PRMSG(2,
+               "PTSAccept: Incoming connection closed\n",0,0,0);
+               }
+       else {
+               PRMSG(1,
+       "PTSAccept: Error reading incoming connection. errno=%d \n",
+                                                               errno,0,0);
+               }
+       *status = TRANS_ACCEPT_MISC_ERROR;
+       return -1;
+    }
+
+    if( (in=read(ciptr->fd,buf,length)) <= 0 ){
+       if( !in ) {
+               PRMSG(2,
+               "PTSAccept: Incoming connection closed\n",0,0,0);
+               }
+       else {
+               PRMSG(1,
+"PTSAccept: Error reading device name for new connection. errno=%d \n",
+                                                               errno,0,0);
+               }
+       *status = TRANS_ACCEPT_MISC_ERROR;
+       return -1;
+    }
+
+    buf[length] = '\0';
+
+    if( (newfd=open(buf,O_RDWR)) < 0 ) {
+       PRMSG(1, "PTSAccept: Failed to open %s\n",buf,0,0);
+       *status = TRANS_ACCEPT_MISC_ERROR;
+       return -1;
+    }
+
+    write(newfd,"1",1);
+
+    /*
+     * Everything looks good: fill in the XtransConnInfo structure.
+     */
+
+    newciptr->addrlen=ciptr->addrlen;
+    if( (newciptr->addr=(char *)xalloc(newciptr->addrlen)) == NULL ) {
+       PRMSG(1,"PTSAccept: failed to allocate memory for peer addr\n",
+                                                                       0,0,0);
+       close(newfd);
+       *status = TRANS_ACCEPT_BAD_MALLOC;
+       return -1;
+    }
+
+    memcpy(newciptr->addr,ciptr->addr,newciptr->addrlen);
+
+    newciptr->peeraddrlen=sizeof(struct sockaddr_un);
+    if( (sunaddr=(struct sockaddr_un *)xalloc(newciptr->peeraddrlen)) == NULL ) {
+       PRMSG(1,"PTSAccept: failed to allocate memory for peer addr\n",
+                                                                       0,0,0);
+       xfree(newciptr->addr);
+       close(newfd);
+       *status = TRANS_ACCEPT_BAD_MALLOC;
+       return -1;
+    }
+
+    sunaddr->sun_family=AF_UNIX;
+    strcpy(sunaddr->sun_path,buf);
+#if defined(BSD44SOCKETS) && !defined(Lynx)
+    sunaddr->sun_len=strlen(sunaddr->sun_path);
+#endif
+
+    newciptr->peeraddr=(char *)sunaddr;
+
+    *status = 0;
+
+    return newfd;
+}
+
+#endif /* TRANS_SERVER */
+
+\f
+#ifdef SVR4
+
+/* NAMED */
+
+#ifdef TRANS_CLIENT
+
+static int
+TRANS(NAMEDOpenClient)(ciptr, port)
+
+XtransConnInfo ciptr;
+char           *port;
+
+{
+    int                        fd;
+    char               server_path[64];
+    struct stat                filestat;
+    extern int         isastream();
+
+    PRMSG(2,"NAMEDOpenClient(%s)\n", port, 0,0 );
+
+#if !defined(NAMEDNODENAME)
+    PRMSG(1,"NAMEDOpenClient: Protocol is not supported by a NAMED connection\n", 0,0,0);
+    return -1;
+#else
+    if ( port && *port ) {
+       if( *port == '/' ) { /* A full pathname */
+               (void) sprintf(server_path, "%s", port);
+           } else {
+               (void) sprintf(server_path, "%s%s", NAMEDNODENAME, port);
+           }
+    } else {
+       (void) sprintf(server_path, "%s%d", NAMEDNODENAME, getpid());
+    }
+
+    if (stat(server_path, &filestat) < 0 ) {
+       PRMSG(1,"NAMEDOpenClient: No device %s for NAMED connection\n", server_path, 0,0 );
+       return -1;
+    }
+
+    if ((filestat.st_mode & S_IFMT) != S_IFIFO) {
+       PRMSG(1,"NAMEDOpenClient: Device %s is not a FIFO\n", server_path, 0,0 );
+       /* Is this really a failure? */
+       return -1;
+    }
+
+    if ((fd = open(server_path, O_RDWR)) < 0) {
+       PRMSG(1,"NAMEDOpenClient: Cannot open %s for NAMED connection\n", server_path, 0,0 );
+       return -1;
+    }
+
+    if (isastream(fd) <= 0) {
+       PRMSG(1,"NAMEDOpenClient: %s is not a streams device\n", server_path, 0,0 );
+       (void) close(fd);
+       return -1;
+    }
+
+    /*
+     * Everything looks good: fill in the XtransConnInfo structure.
+     */
+
+    if (TRANS(FillAddrInfo) (ciptr, server_path, server_path) == 0)
+    {
+       PRMSG(1,"NAMEDOpenClient: failed to fill in addr info\n",
+                                                               0,0,0);
+       close(fd);
+       return -1;
+    }
+
+    return(fd);
+
+#endif /* !NAMEDNODENAME */
+}
+
+#endif /* TRANS_CLIENT */
+
+
+#ifdef TRANS_SERVER
+
+static int
+TRANS(NAMEDOpenServer)(ciptr, port)
+
+XtransConnInfo ciptr;
+char           *port;
+
+{
+    int                        fd, pipefd[2];
+    char               server_path[64];
+    struct stat                sbuf;
+
+    PRMSG(2,"NAMEDOpenServer(%s)\n", port, 0,0 );
+
+#if !defined(NAMEDNODENAME)
+    PRMSG(1,"NAMEDOpenServer: Protocol is not supported by a NAMED connection\n", 0,0,0);
+    return -1;
+#else
+    if ( port && *port ) {
+       if( *port == '/' ) { /* A full pathname */
+           (void) sprintf(server_path, "%s", port);
+       } else {
+           (void) sprintf(server_path, "%s%s", NAMEDNODENAME, port);
+       }
+    } else {
+       (void) sprintf(server_path, "%s%d", NAMEDNODENAME, getpid());
+    }
+
+    mkdir(X_STREAMS_DIR, 0777);
+    chmod(X_STREAMS_DIR, 0777);
+
+    if(stat(server_path, &sbuf) != 0) {
+       if (errno == ENOENT) {
+           if ((fd = creat(server_path, (mode_t)0666)) == -1) {
+               PRMSG(1, "NAMEDOpenServer: Can't open %s\n", server_path, 0,0 );
+               return(-1);
+           }
+           close(fd);
+           if (chmod(server_path, (mode_t)0666) < 0) {
+               PRMSG(1, "NAMEDOpenServer: Can't open %s\n", server_path, 0,0 );
+               return(-1);
+           }
+       } else {
+           PRMSG(1, "NAMEDOpenServer: stat on %s failed\n", server_path, 0,0 );
+           return(-1);
+       }
+    }
+
+    if( pipe(pipefd) != 0) {
+       PRMSG(1, "NAMEDOpenServer: pipe() failed, errno=%d\n",errno, 0,0 );
+       return(-1);
+    }
+
+    if( ioctl(pipefd[0], I_PUSH, "connld") != 0) {
+       PRMSG(1, "NAMEDOpenServer: ioctl(I_PUSH,\"connld\") failed, errno=%d\n",errno, 0,0 );
+       close(pipefd[0]);
+       close(pipefd[1]);
+       return(-1);
+    }
+
+    if( fattach(pipefd[0], server_path) != 0) {
+       PRMSG(1, "NAMEDOpenServer: fattach(%s) failed, errno=%d\n", server_path,errno, 0 );
+       close(pipefd[0]);
+       close(pipefd[1]);
+       return(-1);
+    }
+
+    /*
+     * Everything looks good: fill in the XtransConnInfo structure.
+     */
+
+    if (TRANS(FillAddrInfo) (ciptr, server_path, server_path) == 0)
+    {
+       PRMSG(1,"NAMEDOpenServer: failed to fill in addr info\n",
+                                                               0,0,0);
+       close(fd);
+       return -1;
+    }
+
+    return(pipefd[1]);
+
+#endif /* !NAMEDNODENAME */
+}
+
+static int
+TRANS(NAMEDAccept)(ciptr, newciptr, status)
+
+XtransConnInfo ciptr;
+XtransConnInfo newciptr;
+int            *status;
+
+{
+    struct strrecvfd str;
+
+    PRMSG(2,"NAMEDAccept(%x->%d)\n", ciptr, ciptr->fd, 0 );
+
+    if( ioctl(ciptr->fd, I_RECVFD, &str ) < 0 ) {
+       PRMSG(1, "NAMEDAccept: ioctl(I_RECVFD) failed, errno=%d\n", errno, 0,0 );
+       *status = TRANS_ACCEPT_MISC_ERROR;
+       return(-1);
+    }
+
+    /*
+     * Everything looks good: fill in the XtransConnInfo structure.
+     */
+
+    newciptr->addrlen=ciptr->addrlen;
+    if( (newciptr->addr=(char *)xalloc(newciptr->addrlen)) == NULL ) {
+       PRMSG(1,
+             "NAMEDAccept: failed to allocate memory for peer addr\n",
+                                                                       0,0,0);
+       close(str.fd);
+       *status = TRANS_ACCEPT_BAD_MALLOC;
+       return -1;
+    }
+
+    memcpy(newciptr->addr,ciptr->addr,newciptr->addrlen);
+
+    newciptr->peeraddrlen=newciptr->addrlen;
+    if( (newciptr->peeraddr=(char *)xalloc(newciptr->peeraddrlen)) == NULL ) {
+       PRMSG(1,
+       "NAMEDAccept: failed to allocate memory for peer addr\n",
+                                                                       0,0,0);
+       xfree(newciptr->addr);
+       close(str.fd);
+       *status = TRANS_ACCEPT_BAD_MALLOC;
+       return -1;
+    }
+
+    memcpy(newciptr->peeraddr,newciptr->addr,newciptr->peeraddrlen);
+
+    *status = 0;
+
+    return str.fd;
+}
+
+#endif /* TRANS_SERVER */
+
+#endif /* SVR4 */
+
+
+\f
+/*
+ * connect_spipe is used by both the SCO and ISC connection types.
+ */
+static int
+connect_spipe(fd1, fd2)
+
+int    fd1, fd2;
+
+{
+    long temp;
+    struct strfdinsert sbuf;
+
+    sbuf.databuf.maxlen = -1;
+    sbuf.databuf.len = -1;
+    sbuf.databuf.buf = NULL;
+    sbuf.ctlbuf.maxlen = sizeof(long);
+    sbuf.ctlbuf.len = sizeof(long);
+    sbuf.ctlbuf.buf = (caddr_t)&temp;
+    sbuf.offset = 0;
+    sbuf.fildes = fd2;
+    sbuf.flags = 0;
+
+    if( ioctl(fd1, I_FDINSERT, &sbuf) < 0 )
+       return(-1);
+
+    return(0);
+}
+
+/*
+ * connect_spipe is used by both the SCO and ISC connection types.
+ */
+
+static int
+named_spipe(fd, path)
+
+int    fd;
+char   *path;
+
+{
+    int oldUmask, ret;
+    struct stat sbuf;
+
+    oldUmask = umask(0);
+
+    (void) fstat(fd, &sbuf);
+    ret = mknod(path, 0020666, sbuf.st_rdev);
+
+    umask(oldUmask);
+
+    if (ret < 0) {
+       ret = -1;
+    } else {
+       ret = fd;
+    }
+    
+    return(ret);
+}
+
+\f
+/* ISC */
+
+#ifdef TRANS_CLIENT
+
+static int
+TRANS(ISCOpenClient)(ciptr, port)
+
+XtransConnInfo ciptr;
+char           *port;
+
+{
+    int                fd,fds,server;
+    char       server_path[64];
+    char       server_dev_path[64];
+    struct     strfdinsert buf;
+    long       temp;
+    mode_t     spmode;
+    struct stat        filestat;
+    
+    PRMSG(2,"ISCOpenClient(%s)\n", port, 0,0 );
+    
+#if !defined(ISCDEVNODENAME)
+    PRMSG(1,"ISCOpenClient: Protocol is not supported by a ISC connection\n", 0,0,0);
+    return -1;
+#else
+    (void) sprintf(server_path, ISCTMPNODENAME, port);
+    (void) sprintf(server_dev_path, ISCDEVNODENAME, port);
+
+    fd = fds = server = -1;
+
+    if (stat(DEV_SPX, &filestat) == -1) {
+       PRMSG(1, "ISCOpenClient: stat(%s) failed, errno=%d\n", DEV_SPX, errno, 0 );
+       return(-1);
+    }
+
+    spmode = (filestat.st_mode & S_IFMT);
+
+    if (stat(server_path, &filestat) != -1) {
+       if ((filestat.st_mode & S_IFMT) == spmode) {
+           if ((server = open(server_path, O_RDWR)) < 0) {
+               PRMSG(1,"ISCOpenClient: failed to open %s\n",
+                     server_path, 0,0 );
+           }
+       }
+    }
+    
+    if (server < 0) {
+       /* try the alternate path */
+       if (stat(server_dev_path, &filestat) != -1) {
+           if ((filestat.st_mode & S_IFMT) == spmode) {
+               if ((server = open(server_dev_path, O_RDWR)) < 0) {
+                   PRMSG(1,"ISCOpenClient: failed to open %s\n",
+                         server_dev_path, 0,0 );
+               }
+           }
+       }
+    }
+    
+    if (server < 0) {
+       PRMSG(1,"ISCOpenClient: can't open either device %s or %s\n",
+             server_path, server_dev_path, 0 );
+       return -1;
+    }
+
+    if ((fds = open(DEV_SPX, O_RDWR)) < 0 ||
+       (fd  = open(DEV_SPX, O_RDWR)) < 0) {
+       /* Failed to open all of the devices */
+       PRMSG(1,"ISCOpenClient: can't open %s\n", DEV_SPX, 0,0 );
+       (void) close(server);
+       if (fds != -1)
+           (void) close(fds);
+       if (fd != -1)
+           (void) close(fd);
+       return -1;
+    }
+
+    /* make a STREAMS-pipe */
+
+    buf.databuf.maxlen = -1;
+    buf.databuf.len = -1;
+    buf.databuf.buf = NULL;
+    buf.ctlbuf.maxlen = sizeof(long);
+    buf.ctlbuf.len = sizeof(long);
+    buf.ctlbuf.buf = (caddr_t)&temp;
+    buf.offset = 0;
+    buf.fildes = fd;
+    buf.flags = 0;
+    
+    if (ioctl(fds, I_FDINSERT, &buf) < 0 ||
+       ioctl(server, I_SENDFD, fds) < 0) {
+       PRMSG(1,"ISCOpenClient: ioctl(I_FDINSERT or I_SENDFD) failed\n",
+                                                               0,0,0 );
+       (void) close(server);
+       (void) close(fds);
+       (void) close(fd);
+       return -1;
+    }
+
+    /*
+     * Everything looks good: fill in the XtransConnInfo structure.
+     */
+    
+    if (TRANS(FillAddrInfo) (ciptr, server_path, server_path) == 0)
+    {
+       PRMSG(1,"ISCOpenClient: failed to fill in addr info\n",
+                                                               0,0,0);
+       close(fd);
+       return -1;
+    }
+
+    return (fd);
+
+#endif /* !ISCDEVNODENAME */
+}
+
+#endif /* TRANS_CLIENT */
+
+
+#ifdef TRANS_SERVER
+
+static int
+TRANS(ISCOpenServer)(ciptr, port)
+
+XtransConnInfo ciptr;
+char           *port;
+
+{
+    int        fd = -1,fds = -1;
+    char       server_path[64],server_unix_path[64];
+    
+    PRMSG(2,"ISCOpenServer(%s)\n", port, 0,0 );
+    
+#if !defined(ISCDEVNODENAME)
+    PRMSG(1,"ISCOpenServer: Protocol is not supported by a ISC connection\n", 0,0,0);
+    return -1;
+#else
+    (void) sprintf(server_path, ISCDEVNODENAME, port);
+    (void) sprintf(server_unix_path, ISCTMPNODENAME, port);
+    
+    mkdir(X_STREAMS_DIR, 0777); /* "/dev/X" */
+    chmod(X_STREAMS_DIR, 0777);
+    mkdir(X_ISC_DIR, 0777); /* "/dev/X/ISCCONN" */
+    chmod(X_ISC_DIR, 0777);
+    
+    unlink(server_path);
+    
+    if( ((fds=open(DEV_SPX, O_RDWR)) < 0) ||
+       ((fd =open(DEV_SPX, O_RDWR)) < 0)) {
+       PRMSG(1,"ISCOpenServer: failed to open %s\n", DEV_SPX, 0,0 );
+       return -1;
+    }
+    
+    if( (connect_spipe(fds, fd) < 0) ||
+       (named_spipe(fds, server_path) < 0)) {
+       PRMSG(1,"ISCOpenServer: failed connect pipes\n", 0,0,0 );
+       close(fd);
+       close(fds);
+       return -1;
+    }
+    
+#if !defined(UNIXCONN)
+    /*
+     * If the UNIX Domain socket transport is not being used, then link this
+     * device to the path /tmp/.X11-unix/X path.
+     */
+#define X_UNIX_DIR     "/tmp/.X11-unix"
+    
+    if (!mkdir(X_UNIX_DIR, 01777))
+       chmod(X_UNIX_DIR, 01777);
+    
+    unlink(server_unix_path);
+    
+#ifdef SVR4
+    /* we prefer symbolic links because hard links can't cross file systems */
+    if( symlink(server_path, server_unix_path) < 0 )
+       PRMSG(1,"ISCOpenServer: failed to link %s to %s\n",
+             server_path, server_unix_path, 0 );
+    /*
+     * Don't make this failure fatal since the listener 
+     * is already established, and this just for compatability
+     */
+#else
+#ifdef ISC40
+    /* catch SIGSYS on symlink for ISC40 compiled binaries running on ISC30 */
+    signal(SIGSYS,_dummy);
+#endif
+    if( link(server_path, server_unix_path) < 0 )
+#ifdef ISC40
+      if( symlink(server_path, server_unix_path) < 0 )
+#endif
+       PRMSG(1,"ISCOpenServer: failed to link %s to %s\n",
+             server_path, server_unix_path, 0 );
+    /*
+     * Don't make this failure fatal since the listener 
+     * is already established, and this just for compatability
+     */
+#endif /* SVR4 */
+#endif /* !UNIXCONN */
+    
+    /*
+     * Everything looks good: fill in the XtransConnInfo structure.
+     */
+    
+    if (TRANS(FillAddrInfo) (ciptr, server_path, server_path) == 0)
+    {
+       PRMSG(1,"ISCOpenServer: failed to fill in addr info\n",
+                                                               0,0,0);
+       close(fd);
+       return -1;
+    }
+
+    return fd;
+
+#endif /* !ISCDEVNODENAME */
+}
+
+static int
+TRANS(ISCAccept)(ciptr, newciptr, status)
+
+XtransConnInfo ciptr;
+XtransConnInfo newciptr;
+int            *status;
+
+{
+    struct strrecvfd str;
+    
+    PRMSG(2,"ISCAccept(%d)\n", ciptr->fd, 0,0 );
+    
+    while (ioctl(ciptr->fd, I_RECVFD, &str) < 0) {
+       if (errno != EAGAIN) {
+           PRMSG(1,"ISCAccept: Can't read fildes", 0,0,0 );
+           *status = TRANS_ACCEPT_MISC_ERROR;
+           return(-1);
+       }
+    }
+    
+    /*
+     * Everything looks good: fill in the XtransConnInfo structure.
+     */
+    
+    newciptr->addrlen=ciptr->addrlen;
+    if( (newciptr->addr=(char *)xalloc(newciptr->addrlen)) == NULL ) {
+       PRMSG(1,
+             "ISCAccept: failed to allocate memory for peer addr\n",
+             0,0,0);
+       close(str.fd);
+       *status = TRANS_ACCEPT_BAD_MALLOC;
+       return -1;
+    }
+    
+    memcpy(newciptr->addr,ciptr->addr,newciptr->addrlen);
+    
+    newciptr->peeraddrlen=newciptr->addrlen;
+    if( (newciptr->peeraddr=(char *)xalloc(newciptr->peeraddrlen)) == NULL ) {
+       PRMSG(1,
+             "ISCAccept: failed to allocate memory for peer addr\n",
+             0,0,0);
+       xfree(newciptr->addr);
+       close(str.fd);
+       *status = TRANS_ACCEPT_BAD_MALLOC;
+       return -1;
+    }
+    
+    memcpy(newciptr->peeraddr,newciptr->addr,newciptr->peeraddrlen);
+    
+    *status = 0;
+
+    return(str.fd);
+}
+
+#endif /* TRANS_SERVER */
+
+
+\f
+
+/* SCO */
+
+#ifdef TRANS_CLIENT
+
+static int
+TRANS(SCOOpenClient)(ciptr, port)
+
+XtransConnInfo ciptr;
+char           *port;
+
+{
+    int                        fd, server, fl, ret;
+    char               server_path[64];
+    struct strbuf      ctlbuf;
+    unsigned long      alarm_time;
+    void               (*savef)();
+    long               temp;
+    extern int getmsg(), putmsg();
+    
+    PRMSG(2,"SCOOpenClient(%s)\n", port, 0,0 );
+    
+#if !defined(SCORNODENAME)
+    PRMSG(1,"SCOOpenClient: Protocol is not supported by a SCO connection\n", 0,0,0);
+    return -1;
+#else
+    (void) sprintf(server_path, SCORNODENAME, port);
+    
+    if ((server = open(server_path, O_RDWR)) < 0) {
+       PRMSG(1,"SCOOpenClient: failed to open %s\n", server_path, 0,0 );
+       return -1;
+    }
+    
+    if ((fd = open(DEV_SPX, O_RDWR)) < 0) {
+       PRMSG(1,"SCOOpenClient: failed to open %s\n", DEV_SPX, 0,0 );
+       close(server);
+       return -1;
+    }
+    
+    (void) write(server, &server, 1);
+    ctlbuf.len = 0;
+    ctlbuf.maxlen = sizeof(long);
+    ctlbuf.buf = (caddr_t)&temp;
+    fl = 0;
+    
+    savef = signal(SIGALRM, _dummy);
+    alarm_time = alarm(10);
+    
+    ret = getmsg(server, &ctlbuf, 0, &fl);
+    
+    (void) alarm(alarm_time);
+    (void) signal(SIGALRM, savef);
+    
+    if (ret < 0) {
+       PRMSG(1,"SCOOpenClient: error from getmsg\n", 0,0,0 );
+       close(fd);
+       close(server);
+       return -1;
+    }
+    
+    /* The msg we got via getmsg is the result of an
+     * I_FDINSERT, so if we do a putmsg with whatever
+     * we recieved, we're doing another I_FDINSERT ...
+     */
+    (void) putmsg(fd, &ctlbuf, 0, 0);
+    (void) fcntl(fd,F_SETFL,fcntl(fd,F_GETFL,0)|O_NDELAY);
+    
+    (void) close(server);
+    
+    /*
+     * Everything looks good: fill in the XtransConnInfo structure.
+     */
+    
+    if (TRANS(FillAddrInfo) (ciptr, server_path, server_path) == 0)
+    {
+       PRMSG(1,"SCOOpenClient: failed to fill addr info\n",
+             0,0,0);
+       close(fd);
+       return -1;
+    }
+    
+    return(fd);
+
+#endif  /* !SCORNODENAME */
+}
+
+#endif /* TRANS_CLIENT */
+
+
+#ifdef TRANS_SERVER
+
+static int
+TRANS(SCOOpenServer)(ciptr, port)
+
+XtransConnInfo ciptr;
+char           *port;
+
+{
+    char               serverR_path[64];
+    char               serverS_path[64];
+    int        fdr = -1;
+    int        fds = -1;
+    
+    PRMSG(2,"SCOOpenServer(%s)\n", port, 0,0 );
+    
+#if !defined(SCORNODENAME)
+    PRMSG(1,"SCOOpenServer: Protocol is not supported by a SCO connection\n", 0,0,0);
+    return -1;
+#else
+    (void) sprintf(serverR_path, SCORNODENAME, port);
+    (void) sprintf(serverS_path, SCOSNODENAME, port);
+    
+    unlink(serverR_path);
+    unlink(serverS_path);
+    
+    if ((fds = open(DEV_SPX, O_RDWR)) < 0 ||
+       (fdr = open(DEV_SPX, O_RDWR)) < 0 ) {
+       PRMSG(2,"SCOOpenServer: failed to open %s\n", DEV_SPX, 0,0 );
+       return -1;
+    }
+    
+    if (connect_spipe(fds, fdr) != -1 &&
+       named_spipe(fds, serverS_path) != -1 &&
+       named_spipe(fdr, serverR_path) != -1) {
+       PRMSG(2,"SCOOpenServer: connect pipes\n", 0,0,0 );
+       } else {
+       PRMSG(2,"SCOOpenServer: failed to connect pipes\n", 0,0,0 );
+       close(fds);
+       close(fdr);
+       return -1;
+    }
+    
+    /*
+     * Everything looks good: fill in the XtransConnInfo structure.
+     */
+    
+    if (TRANS(FillAddrInfo) (ciptr, serverS_path, serverR_path) == 0)
+    {
+       PRMSG(1,"SCOOpenServer: failed to fill in addr info\n",
+             0,0,0);
+       close(fds);
+       close(fdr);
+       return -1;
+    }
+    
+    return(fds);
+
+#endif /* !SCORNODENAME */
+}
+
+static int
+TRANS(SCOAccept)(ciptr, newciptr, status)
+
+XtransConnInfo ciptr;
+XtransConnInfo newciptr;
+int            *status;
+
+{
+    char       c;
+    int        fd;
+    
+    PRMSG(2,"SCOAccept(%d)\n", ciptr->fd, 0,0 );
+    
+    if (read(ciptr->fd, &c, 1) < 0) {
+       PRMSG(1,"SCOAccept: can't read from client",0,0,0);
+       *status = TRANS_ACCEPT_MISC_ERROR;
+       return(-1);
+    }
+    
+    if( (fd = open(DEV_SPX, O_RDWR)) < 0 ) {
+       PRMSG(1,"SCOAccept: can't open \"%s\"",DEV_SPX, 0,0 );
+       *status = TRANS_ACCEPT_MISC_ERROR;
+       return(-1);
+    }
+    
+    if (connect_spipe(ciptr->fd, fd) < 0) {
+       PRMSG(1,"SCOAccept: can't connect pipes", 0,0,0 );
+       (void) close(fd);
+       *status = TRANS_ACCEPT_MISC_ERROR;
+       return(-1);
+    }
+    
+    /*
+     * Everything looks good: fill in the XtransConnInfo structure.
+     */
+    
+    newciptr->addrlen=ciptr->addrlen;
+    if( (newciptr->addr=(char *)xalloc(newciptr->addrlen)) == NULL ) {
+       PRMSG(1,
+             "SCOAccept: failed to allocate memory for peer addr\n",
+             0,0,0);
+       close(fd);
+       *status = TRANS_ACCEPT_BAD_MALLOC;
+       return -1;
+    }
+    
+    memcpy(newciptr->addr,ciptr->addr,newciptr->addrlen);
+    
+    newciptr->peeraddrlen=newciptr->addrlen;
+    if( (newciptr->peeraddr=(char *)xalloc(newciptr->peeraddrlen)) == NULL ) {
+       PRMSG(1,
+             "SCOAccept: failed to allocate memory for peer addr\n",
+             0,0,0);
+       xfree(newciptr->addr);
+       close(fd);
+       *status = TRANS_ACCEPT_BAD_MALLOC;
+       return -1;
+    }
+    
+    memcpy(newciptr->peeraddr,newciptr->addr,newciptr->peeraddrlen);
+    
+    *status = 0;
+
+    return(fd);
+}
+
+#endif /* TRANS_SERVER */
+
+
+\f
+#ifdef TRANS_REOPEN
+
+static int
+TRANS(PTSReopenServer)(ciptr, fd, port)
+
+XtransConnInfo ciptr;
+int            fd;
+char           *port;
+{
+    char server_path[64];
+
+    PRMSG(2,"PTSReopenServer(%d,%s)\n", fd, port, 0 );
+
+#if !defined(PTSNODENAME)
+    PRMSG(1,"PTSReopenServer: Protocol is not supported by a pts connection\n", 0,0,0);
+    return 0;
+#else
+    if (port && *port ) {
+       if( *port == '/' ) { /* A full pathname */
+               (void) sprintf(server_path, "%s", port);
+           } else {
+               (void) sprintf(server_path, "%s%s", PTSNODENAME, port);
+           }
+    } else {
+       (void) sprintf(server_path, "%s%d", PTSNODENAME, getpid());
+    }
+
+    if (TRANS(FillAddrInfo) (ciptr, server_path, server_path) == 0)
+    {
+       PRMSG(1,"PTSReopenServer: failed to fill in addr info\n",
+                                                               0,0,0);
+       return 0;
+    }
+
+    return 1;
+
+#endif /* !PTSNODENAME */
+}
+
+
+static int
+TRANS(NAMEDReopenServer)(ciptr, fd, port)
+
+XtransConnInfo ciptr;
+int            fd;
+char           *port;
+
+{
+    char server_path[64];
+
+    PRMSG(2,"NAMEDReopenServer(%s)\n", port, 0,0 );
+
+#if !defined(NAMEDNODENAME)
+    PRMSG(1,"NAMEDReopenServer: Protocol is not supported by a NAMED connection\n", 0,0,0);
+    return 0;
+#else
+    if ( port && *port ) {
+       if( *port == '/' ) { /* A full pathname */
+           (void) sprintf(server_path, "%s", port);
+       } else {
+           (void) sprintf(server_path, "%s%s", NAMEDNODENAME, port);
+       }
+    } else {
+       (void) sprintf(server_path, "%s%d", NAMEDNODENAME, getpid());
+    }
+
+    if (TRANS(FillAddrInfo) (ciptr, server_path, server_path) == 0)
+    {
+       PRMSG(1,"NAMEDReopenServer: failed to fill in addr info\n",
+                                                               0,0,0);
+       return 0;
+    }
+
+    return 1;
+
+#endif /* !NAMEDNODENAME */
+}
+
+
+static int
+TRANS(ISCReopenServer)(ciptr, fd, port)
+
+XtransConnInfo ciptr;
+int            fd;
+char           *port;
+
+{
+    char server_path[64],server_unix_path[64];
+    
+    PRMSG(2,"ISCReopenServer(%s)\n", port, 0,0 );
+    
+#if !defined(ISCDEVNODENAME)
+    PRMSG(1,"ISCReopenServer: Protocol is not supported by a ISC connection\n", 0,0,0);
+    return 0;
+#else
+    (void) sprintf(server_path, ISCDEVNODENAME, port);
+    (void) sprintf(server_unix_path, ISCTMPNODENAME, port);
+
+    if (TRANS(FillAddrInfo) (ciptr, server_path, server_path) == 0)
+    {
+       PRMSG(1,"ISCReopenServer: failed to fill in addr info\n",
+                                                               0,0,0);
+       return 0;
+    }
+    
+    return 1;
+
+#endif /* !ISCDEVNODENAME */
+}
+
+
+static int
+TRANS(SCOReopenServer)(ciptr, fd, port)
+
+XtransConnInfo ciptr;
+int            fd;
+char           *port;
+
+{
+    char               serverR_path[64];
+    char               serverS_path[64];
+    
+    PRMSG(2,"SCOReopenServer(%s)\n", port, 0,0 );
+    
+#if !defined(SCORNODENAME)
+    PRMSG(1,"SCOReopenServer: Protocol is not supported by a SCO connection\n", 0,0,0);
+    return 0;
+#else
+    (void) sprintf(serverR_path, SCORNODENAME, port);
+    (void) sprintf(serverS_path, SCOSNODENAME, port);
+    
+    if (TRANS(FillAddrInfo) (ciptr, serverS_path, serverR_path) == 0)
+    {
+       PRMSG(1,"SCOReopenServer: failed to fill in addr info\n",
+             0,0,0);
+       return 0;
+    }
+    
+    return 1;
+
+#endif /* SCORNODENAME */
+}
+
+#endif /* TRANS_REOPEN */
+
+
+\f
+/*
+ * This table contains all of the entry points for the different local
+ * connection mechanisms.
+ */
+
+typedef struct _LOCALtrans2dev {
+    char       *transname;
+
+#ifdef TRANS_CLIENT
+
+    int        (*devcotsopenclient)(
+#if NeedFunctionPrototypes
+       XtransConnInfo, char * /*port*/
+#endif
+);
+
+#endif /* TRANS_CLIENT */
+
+#ifdef TRANS_SERVER
+
+    int        (*devcotsopenserver)(
+#if NeedFunctionPrototypes
+       XtransConnInfo, char * /*port*/
+#endif
+);
+
+#endif /* TRANS_SERVER */
+
+#ifdef TRANS_CLIENT
+
+    int        (*devcltsopenclient)(
+#if NeedFunctionPrototypes
+       XtransConnInfo, char * /*port*/
+#endif
+);
+
+#endif /* TRANS_CLIENT */
+
+#ifdef TRANS_SERVER
+
+    int        (*devcltsopenserver)(
+#if NeedFunctionPrototypes
+       XtransConnInfo, char * /*port*/
+#endif
+);
+
+#endif /* TRANS_SERVER */
+
+#ifdef TRANS_REOPEN
+
+    int        (*devcotsreopenserver)(
+#if NeedFunctionPrototypes
+       XtransConnInfo,
+       int,    /* fd */
+       char *  /* port */
+#endif
+);
+
+    int        (*devcltsreopenserver)(
+#if NeedFunctionPrototypes
+       XtransConnInfo,
+       int,    /* fd */
+       char *  /* port */
+#endif
+);
+
+#endif /* TRANS_REOPEN */
+
+#ifdef TRANS_SERVER
+
+    int        (*devaccept)(
+#if NeedFunctionPrototypes
+       XtransConnInfo, XtransConnInfo, int *
+#endif
+
+);
+
+#endif /* TRANS_SERVER */
+
+} LOCALtrans2dev;
+
+static LOCALtrans2dev LOCALtrans2devtab[] = {
+{"",
+#ifdef TRANS_CLIENT
+     TRANS(PTSOpenClient),
+#endif /* TRANS_CLIENT */
+#ifdef TRANS_SERVER
+     TRANS(PTSOpenServer),
+#endif /* TRANS_SERVER */
+#ifdef TRANS_CLIENT
+     TRANS(OpenFail),
+#endif /* TRANS_CLIENT */
+#ifdef TRANS_SERVER
+     TRANS(OpenFail),
+#endif /* TRANS_SERVER */
+#ifdef TRANS_REOPEN
+     TRANS(PTSReopenServer),
+     TRANS(ReopenFail),
+#endif
+#ifdef TRANS_SERVER
+     TRANS(PTSAccept)
+#endif /* TRANS_SERVER */
+},
+
+{"local",
+#ifdef TRANS_CLIENT
+     TRANS(PTSOpenClient),
+#endif /* TRANS_CLIENT */
+#ifdef TRANS_SERVER
+     TRANS(PTSOpenServer),
+#endif /* TRANS_SERVER */
+#ifdef TRANS_CLIENT
+     TRANS(OpenFail),
+#endif /* TRANS_CLIENT */
+#ifdef TRANS_SERVER
+     TRANS(OpenFail),
+#endif /* TRANS_SERVER */
+#ifdef TRANS_REOPEN
+     TRANS(PTSReopenServer),
+     TRANS(ReopenFail),
+#endif
+#ifdef TRANS_SERVER
+     TRANS(PTSAccept)
+#endif /* TRANS_SERVER */
+},
+
+{"pts",
+#ifdef TRANS_CLIENT
+     TRANS(PTSOpenClient),
+#endif /* TRANS_CLIENT */
+#ifdef TRANS_SERVER
+     TRANS(PTSOpenServer),
+#endif /* TRANS_SERVER */
+#ifdef TRANS_CLIENT
+     TRANS(OpenFail),
+#endif /* TRANS_CLIENT */
+#ifdef TRANS_SERVER
+     TRANS(OpenFail),
+#endif /* TRANS_SERVER */
+#ifdef TRANS_REOPEN
+     TRANS(PTSReopenServer),
+     TRANS(ReopenFail),
+#endif
+#ifdef TRANS_SERVER
+     TRANS(PTSAccept)
+#endif /* TRANS_SERVER */
+},
+
+#ifdef SVR4
+{"named",
+#ifdef TRANS_CLIENT
+     TRANS(NAMEDOpenClient),
+#endif /* TRANS_CLIENT */
+#ifdef TRANS_SERVER
+     TRANS(NAMEDOpenServer),
+#endif /* TRANS_SERVER */
+#ifdef TRANS_CLIENT
+     TRANS(OpenFail),
+#endif /* TRANS_CLIENT */
+#ifdef TRANS_SERVER
+     TRANS(OpenFail),
+#endif /* TRANS_SERVER */
+#ifdef TRANS_REOPEN
+     TRANS(NAMEDReopenServer),
+     TRANS(ReopenFail),
+#endif
+#ifdef TRANS_SERVER
+     TRANS(NAMEDAccept)
+#endif /* TRANS_SERVER */
+},
+#endif /* SVR4 */
+
+{"isc",
+#ifdef TRANS_CLIENT
+     TRANS(ISCOpenClient),
+#endif /* TRANS_CLIENT */
+#ifdef TRANS_SERVER
+     TRANS(ISCOpenServer),
+#endif /* TRANS_SERVER */
+#ifdef TRANS_CLIENT
+     TRANS(OpenFail),
+#endif /* TRANS_CLIENT */
+#ifdef TRANS_SERVER
+     TRANS(OpenFail),
+#endif /* TRANS_SERVER */
+#ifdef TRANS_REOPEN
+     TRANS(ISCReopenServer),
+     TRANS(ReopenFail),
+#endif
+#ifdef TRANS_SERVER
+     TRANS(ISCAccept)
+#endif /* TRANS_SERVER */
+},
+
+{"sco",
+#ifdef TRANS_CLIENT
+     TRANS(SCOOpenClient),
+#endif /* TRANS_CLIENT */
+#ifdef TRANS_SERVER
+     TRANS(SCOOpenServer),
+#endif /* TRANS_SERVER */
+#ifdef TRANS_CLIENT
+     TRANS(OpenFail),
+#endif /* TRANS_CLIENT */
+#ifdef TRANS_SERVER
+     TRANS(OpenFail),
+#endif /* TRANS_SERVER */
+#ifdef TRANS_REOPEN
+     TRANS(SCOReopenServer),
+     TRANS(ReopenFail),
+#endif
+#ifdef TRANS_SERVER
+     TRANS(SCOAccept)
+#endif /* TRANS_SERVER */
+},
+};
+
+#define NUMTRANSPORTS  (sizeof(LOCALtrans2devtab)/sizeof(LOCALtrans2dev))
+    
+static char    *XLOCAL=NULL;
+static char    *workingXLOCAL=NULL;
+static char    *freeXLOCAL=NULL;
+
+static void
+TRANS(LocalInitTransports)(protocol)
+
+char *protocol;
+
+{
+    PRMSG(3,"LocalInitTransports(%s)\n", protocol, 0,0 );
+    
+    if( strcmp(protocol,"local") && strcmp(protocol,"LOCAL") )
+    {
+       workingXLOCAL=freeXLOCAL=(char *)xalloc (strlen (protocol) + 1);
+       if (workingXLOCAL)
+           strcpy (workingXLOCAL, protocol);
+    }
+    else {
+       XLOCAL=(char *)getenv("XLOCAL");
+       if(XLOCAL==NULL)
+           XLOCAL="UNIX:PTS:NAMED:ISC:SCO";
+       workingXLOCAL=freeXLOCAL=(char *)xalloc (strlen (XLOCAL) + 1);
+       if (workingXLOCAL)
+           strcpy (workingXLOCAL, XLOCAL);
+    }
+}
+
+static void
+TRANS(LocalEndTransports)()
+
+{
+    PRMSG(3,"LocalEndTransports()\n", 0,0,0 );
+    xfree(freeXLOCAL);
+}
+
+static LOCALtrans2dev *
+TRANS(LocalGetNextTransport)()
+
+{
+    int        i,j;
+    char       *typetocheck;
+#define TYPEBUFSIZE    32
+    char       typebuf[TYPEBUFSIZE];
+    PRMSG(3,"LocalGetNextTransport()\n", 0,0,0 );
+    
+    while(1)
+    {
+       if( workingXLOCAL == NULL || *workingXLOCAL == '\0' )
+           return NULL;
+       
+       typetocheck=workingXLOCAL;
+       workingXLOCAL=strchr(workingXLOCAL,':');
+       if(workingXLOCAL && *workingXLOCAL)
+           *workingXLOCAL++='\0';
+       
+       for(i=0;i<NUMTRANSPORTS;i++)
+       {
+           /*
+            * This is equivilent to a case insensitive strcmp(),
+            * but should be more portable.
+            */
+           strncpy(typebuf,typetocheck,TYPEBUFSIZE);
+           for(j=0;j<TYPEBUFSIZE;j++)
+               if (isupper(typebuf[j]))
+                   typebuf[j]=tolower(typebuf[j]);
+           
+           /* Now, see if they match */
+           if(!strcmp(LOCALtrans2devtab[i].transname,typebuf))
+               return &LOCALtrans2devtab[i];
+       }
+    }
+    /*NOTREACHED*/
+    return NULL;
+}
+
+#ifdef TRANS_CLIENT
+
+#ifdef NEED_UTSNAME
+#include <sys/utsname.h>
+#endif
+
+/*
+ * Make sure 'host' is really local.
+ */
+
+static int
+HostReallyLocal (host)
+
+char *host;
+
+{
+    /*
+     * The 'host' passed to this function may have been generated
+     * by either uname() or gethostname().  We try both if possible.
+     */
+
+#ifdef NEED_UTSNAME
+    struct utsname name;
+#endif
+    char buf[256];
+
+#ifdef NEED_UTSNAME
+    if (uname (&name) >= 0 && strcmp (host, name.nodename) == 0)
+       return (1);
+#endif
+
+    buf[0] = '\0';
+    (void) gethostname (buf, 256);
+    buf[255] = '\0';
+
+    if (strcmp (host, buf) == 0)
+       return (1);
+
+    return (0);
+}
+
+
+static XtransConnInfo
+TRANS(LocalOpenClient)(type, protocol, host, port)
+
+int  type;
+char *protocol;
+char *host;
+char *port;
+
+{
+    int        fd = -1;
+    LOCALtrans2dev *transptr;
+    XtransConnInfo ciptr;
+    int index;
+
+    PRMSG(3,"LocalOpenClient()\n", 0,0,0 );
+    
+    /*
+     * Make sure 'host' is really local.  If not, we return failure.
+     * The reason we make this check is because a process may advertise
+     * a "local" address for which it can accept connections, but if a
+     * process on a remote machine tries to connect to this address,
+     * we know for sure it will fail.
+     */
+
+    if (strcmp (host, "unix") != 0 && !HostReallyLocal (host))
+    {
+       PRMSG (1,
+          "LocalOpenClient: Cannot connect to non-local host %s\n",
+              host, 0, 0);
+       return NULL;
+    }
+
+
+#if defined(X11_t)
+    /*
+     * X has a well known port, that is transport dependant. It is easier
+     * to handle it here, than try and come up with a transport independent
+     * representation that can be passed in and resolved the usual way.
+     *
+     * The port that is passed here is really a string containing the idisplay
+     * from ConnectDisplay(). Since that is what we want for the local transports,
+     * we don't have to do anything special.
+     */
+#endif /* X11_t */
+    
+    if( (ciptr=(XtransConnInfo)xcalloc(1,sizeof(struct _XtransConnInfo))) == NULL )
+    {
+       PRMSG(1,"LocalOpenClient: calloc(1,%d) failed\n",
+             sizeof(struct _XtransConnInfo),0,0 );
+       return NULL;
+    }
+    
+    ciptr->fd = -1;
+    
+    TRANS(LocalInitTransports)(protocol);
+    
+    index = 0;
+    for(transptr=TRANS(LocalGetNextTransport)();
+       transptr!=NULL;transptr=TRANS(LocalGetNextTransport)(), index++)
+    {
+       switch( type )
+       {
+       case XTRANS_OPEN_COTS_CLIENT:
+           ciptr->fd=transptr->devcotsopenclient(ciptr,port);
+           break;
+       case XTRANS_OPEN_CLTS_CLIENT:
+           ciptr->fd=transptr->devcltsopenclient(ciptr,port);
+           break;
+       case XTRANS_OPEN_COTS_SERVER:
+       case XTRANS_OPEN_CLTS_SERVER:
+           PRMSG(1,
+                 "LocalOpenClient: Should not be opening a server with this function\n",
+                 0,0,0);
+           break;
+       default:
+           PRMSG(1,
+                 "LocalOpenClient: Unknown Open type %d\n",
+                 type, 0,0 );
+       }
+       if( ciptr->fd >= 0 )
+           break;
+    }
+    
+    TRANS(LocalEndTransports)();
+    
+    if( ciptr->fd < 0 )
+    {
+       xfree(ciptr);
+       return NULL;
+    }
+    
+    ciptr->priv=(char *)transptr;
+    ciptr->index = index;
+    
+    return ciptr;
+}
+
+#endif /* TRANS_CLIENT */
+
+
+#ifdef TRANS_SERVER
+
+static XtransConnInfo
+TRANS(LocalOpenServer)(type, protocol, host, port)
+
+int  type;
+char *protocol;
+char *host;
+char *port;
+
+{
+    int        i,fd = -1;
+    XtransConnInfo ciptr;
+    
+    PRMSG(2,"LocalOpenServer(%d,%s,%s)\n", type, protocol, port);
+    
+#if defined(X11_t)
+    /*
+     * For X11, the port will be in the format xserverN where N is the
+     * display number. All of the local connections just need to know
+     * the display number because they don't do any name resolution on
+     * the port. This just truncates port to the display portion.
+     */
+#endif /* X11_t */
+    
+    if( (ciptr=(XtransConnInfo)xcalloc(1,sizeof(struct _XtransConnInfo))) == NULL )
+    {
+       PRMSG(1,"LocalOpenServer: calloc(1,%d) failed\n",
+             sizeof(struct _XtransConnInfo),0,0 );
+       return NULL;
+    }
+    
+    for(i=1;i<NUMTRANSPORTS;i++)
+    {
+       if( strcmp(protocol,LOCALtrans2devtab[i].transname) != 0 )
+           continue;
+       switch( type )
+       {
+       case XTRANS_OPEN_COTS_CLIENT:
+       case XTRANS_OPEN_CLTS_CLIENT:
+           PRMSG(1,
+                 "LocalOpenServer: Should not be opening a client with this function\n",
+                 0,0,0);
+           break;
+       case XTRANS_OPEN_COTS_SERVER:
+           ciptr->fd=LOCALtrans2devtab[i].devcotsopenserver(ciptr,port);
+           break;
+       case XTRANS_OPEN_CLTS_SERVER:
+           ciptr->fd=LOCALtrans2devtab[i].devcltsopenserver(ciptr,port);
+           break;
+       default:
+           PRMSG(1,"LocalOpenServer: Unknown Open type %d\n",
+                 type ,0,0);
+       }
+       if( ciptr->fd >= 0 ) {
+           ciptr->priv=(char *)&LOCALtrans2devtab[i];
+           ciptr->index=i;
+           ciptr->flags=1;
+           return ciptr;
+       }
+    }
+    
+    xfree(ciptr);
+    return NULL;
+}
+
+#endif /* TRANS_SERVER */
+
+
+#ifdef TRANS_REOPEN
+
+static XtransConnInfo
+TRANS(LocalReopenServer)(type, index, fd, port)
+
+int  type;
+int  index;
+int  fd;
+char *port;
+
+{
+    XtransConnInfo ciptr;
+    int stat;
+    
+    PRMSG(2,"LocalReopenServer(%d,%d,%d)\n", type, index, fd);
+    
+    if( (ciptr=(XtransConnInfo)xcalloc(1,sizeof(struct _XtransConnInfo))) == NULL )
+    {
+       PRMSG(1,"LocalReopenServer: calloc(1,%d) failed\n",
+             sizeof(struct _XtransConnInfo),0,0 );
+       return NULL;
+    }
+    
+    ciptr->fd = fd;
+
+    switch( type )
+    {
+    case XTRANS_OPEN_COTS_SERVER:
+       stat = LOCALtrans2devtab[index].devcotsreopenserver(ciptr,fd,port);
+       break;
+    case XTRANS_OPEN_CLTS_SERVER:
+       stat = LOCALtrans2devtab[index].devcltsreopenserver(ciptr,fd,port);
+       break;
+    default:
+       PRMSG(1,"LocalReopenServer: Unknown Open type %d\n",
+         type ,0,0);
+    }
+
+    if( stat > 0 ) {
+       ciptr->priv=(char *)&LOCALtrans2devtab[index];
+       ciptr->index=index;
+       ciptr->flags=1;
+       return ciptr;
+    }
+    
+    xfree(ciptr);
+    return NULL;
+}
+
+#endif /* TRANS_REOPEN */
+
+
+\f
+/*
+ * This is the Local implementation of the X Transport service layer
+ */
+
+#ifdef TRANS_CLIENT
+
+static XtransConnInfo
+TRANS(LocalOpenCOTSClient)(thistrans, protocol, host, port)
+
+Xtransport *thistrans;
+char *protocol;
+char *host;
+char *port;
+
+{
+    PRMSG(2,"LocalOpenCOTSClient(%s,%s,%s)\n",protocol,host,port);
+    
+    return TRANS(LocalOpenClient)(XTRANS_OPEN_COTS_CLIENT, protocol, host, port);
+}
+
+#endif /* TRANS_CLIENT */
+
+
+#ifdef TRANS_SERVER
+
+static XtransConnInfo
+TRANS(LocalOpenCOTSServer)(thistrans, protocol, host, port)
+
+Xtransport *thistrans;
+char *protocol;
+char *host;
+char *port;
+
+{
+    char *typetocheck = NULL;
+    int found = 0;
+    char typebuf[TYPEBUFSIZE];
+
+    PRMSG(2,"LocalOpenCOTSServer(%s,%s,%s)\n",protocol,host,port);
+
+    /* Check if this local type is in the XLOCAL list */
+    TRANS(LocalInitTransports)("local");
+    typetocheck = workingXLOCAL;
+    while (typetocheck && !found) {
+       int j;
+
+       workingXLOCAL = strchr(workingXLOCAL, ':');
+       if (workingXLOCAL && *workingXLOCAL)
+           *workingXLOCAL++ = '\0';
+       strncpy(typebuf, typetocheck, TYPEBUFSIZE);
+       for (j = 0; j < TYPEBUFSIZE; j++)
+           if (isupper(typebuf[j]))
+               typebuf[j] = tolower(typebuf[j]);
+       if (!strcmp(thistrans->TransName, typebuf))
+           found = 1;
+       typetocheck = workingXLOCAL;
+    }
+    TRANS(LocalEndTransports)();
+    
+    if (!found) {
+       PRMSG(3,"LocalOpenCOTSServer: disabling %s\n",thistrans->TransName,0,0);
+       thistrans->flags |= TRANS_DISABLED;
+       return NULL;
+    }
+
+    return TRANS(LocalOpenServer)(XTRANS_OPEN_COTS_SERVER, protocol, host, port);
+}
+
+#endif /* TRANS_SERVER */
+
+
+#ifdef TRANS_CLIENT
+
+static XtransConnInfo
+TRANS(LocalOpenCLTSClient)(thistrans, protocol, host, port)
+
+Xtransport *thistrans;
+char *protocol;
+char *host;
+char *port;
+
+{
+    PRMSG(2,"LocalOpenCLTSClient(%s,%s,%s)\n",protocol,host,port);
+    
+    return TRANS(LocalOpenClient)(XTRANS_OPEN_CLTS_CLIENT, protocol, host, port);
+}
+
+#endif /* TRANS_CLIENT */
+
+
+#ifdef TRANS_SERVER
+
+static XtransConnInfo
+TRANS(LocalOpenCLTSServer)(thistrans, protocol, host, port)
+
+Xtransport *thistrans;
+char *protocol;
+char *host;
+char *port;
+
+{
+    PRMSG(2,"LocalOpenCLTSServer(%s,%s,%s)\n",protocol,host,port);
+    
+    return TRANS(LocalOpenServer)(XTRANS_OPEN_CLTS_SERVER, protocol, host, port);
+}
+
+#endif /* TRANS_SERVER */
+
+
+#ifdef TRANS_REOPEN
+
+static XtransConnInfo
+TRANS(LocalReopenCOTSServer)(thistrans, fd, port)
+
+Xtransport *thistrans;
+int       fd;
+char      *port;
+
+{
+    int index;
+
+    PRMSG(2,"LocalReopenCOTSServer(%d,%s)\n", fd, port, 0);
+    
+    for(index=1;index<NUMTRANSPORTS;index++)
+    {
+       if( strcmp(thistrans->TransName,
+           LOCALtrans2devtab[index].transname) == 0 )
+           break;
+    }
+    
+    if (index >= NUMTRANSPORTS)
+    {
+       return (NULL);
+    }
+
+    return TRANS(LocalReopenServer)(XTRANS_OPEN_COTS_SERVER,
+       index, fd, port);
+}
+
+static XtransConnInfo
+TRANS(LocalReopenCLTSServer)(thistrans, fd, port)
+
+Xtransport *thistrans;
+int       fd;
+char      *port;
+
+{
+    int index;
+
+    PRMSG(2,"LocalReopenCLTSServer(%d,%s)\n", fd, port, 0);
+    
+    for(index=1;index<NUMTRANSPORTS;index++)
+    {
+       if( strcmp(thistrans->TransName,
+           LOCALtrans2devtab[index].transname) == 0 )
+           break;
+    }
+    
+    if (index >= NUMTRANSPORTS)
+    {
+       return (NULL);
+    }
+
+    return TRANS(LocalReopenServer)(XTRANS_OPEN_CLTS_SERVER,
+       index, fd, port);
+}
+
+#endif /* TRANS_REOPEN */
+
+
+
+static
+TRANS(LocalSetOption)(ciptr, option, arg)
+
+XtransConnInfo ciptr;
+int option;
+int arg;
+
+{
+    PRMSG(2,"LocalSetOption(%d,%d,%d)\n",ciptr->fd,option,arg);
+    
+    return -1;
+}
+
+
+#ifdef TRANS_SERVER
+
+static
+TRANS(LocalCreateListener)(ciptr, port)
+
+XtransConnInfo ciptr;
+char *port;
+
+{
+    PRMSG(2,"LocalCreateListener(%x->%d,%s)\n",ciptr,ciptr->fd,port);
+    
+    return 0;
+}
+
+static XtransConnInfo
+TRANS(LocalAccept)(ciptr, status)
+
+XtransConnInfo ciptr;
+int           *status;
+
+{
+    XtransConnInfo     newciptr;
+    LOCALtrans2dev     *transptr;
+    
+    PRMSG(2,"LocalAccept(%x->%d)\n", ciptr, ciptr->fd,0);
+    
+    transptr=(LOCALtrans2dev *)ciptr->priv;
+    
+    if( (newciptr=(XtransConnInfo)xcalloc(1,sizeof(struct _XtransConnInfo)))==NULL )
+    {
+       PRMSG(1,"LocalAccept: calloc(1,%d) failed\n",
+             sizeof(struct _XtransConnInfo),0,0 );
+       *status = TRANS_ACCEPT_BAD_MALLOC;
+       return NULL;
+    }
+    
+    newciptr->fd=transptr->devaccept(ciptr,newciptr,status);
+    
+    if( newciptr->fd < 0 )
+    {
+       xfree(newciptr);
+       return NULL;
+    }
+    
+    newciptr->priv=(char *)transptr;
+    newciptr->index = ciptr->index;
+    
+    *status = 0;
+
+    return newciptr;
+}
+
+#endif /* TRANS_SERVER */
+
+
+#ifdef TRANS_CLIENT
+
+static
+TRANS(LocalConnect)(ciptr, host, port)
+
+XtransConnInfo ciptr;
+char *host;
+char *port;
+
+{
+    PRMSG(2,"LocalConnect(%x->%d,%s)\n", ciptr, ciptr->fd, port);
+    
+    return 0;
+}
+
+#endif /* TRANS_CLIENT */
+
+
+static int
+TRANS(LocalBytesReadable)(ciptr, pend )
+
+XtransConnInfo ciptr;
+BytesReadable_t *pend;
+
+{
+    PRMSG(2,"LocalBytesReadable(%x->%d,%x)\n", ciptr, ciptr->fd, pend);
+
+#if defined(ISC) || defined(SCO)
+    return ioctl(ciptr->fd, I_NREAD, (char *)pend);
+#else
+    return ioctl(ciptr->fd, FIONREAD, (char *)pend);
+#endif
+}
+
+static int
+TRANS(LocalRead)(ciptr, buf, size)
+
+XtransConnInfo ciptr;
+char *buf;
+int size;
+
+{
+    PRMSG(2,"LocalRead(%d,%x,%d)\n", ciptr->fd, buf, size );
+    
+    return read(ciptr->fd,buf,size);
+}
+
+static int
+TRANS(LocalWrite)(ciptr, buf, size)
+
+XtransConnInfo ciptr;
+char *buf;
+int size;
+
+{
+    PRMSG(2,"LocalWrite(%d,%x,%d)\n", ciptr->fd, buf, size );
+    
+    return write(ciptr->fd,buf,size);
+}
+
+static int
+TRANS(LocalReadv)(ciptr, buf, size)
+
+XtransConnInfo         ciptr;
+struct iovec   *buf;
+int            size;
+
+{
+    PRMSG(2,"LocalReadv(%d,%x,%d)\n", ciptr->fd, buf, size );
+    
+    return READV(ciptr,buf,size);
+}
+
+static int
+TRANS(LocalWritev)(ciptr, buf, size)
+
+XtransConnInfo         ciptr;
+struct iovec   *buf;
+int            size;
+
+{
+    PRMSG(2,"LocalWritev(%d,%x,%d)\n", ciptr->fd, buf, size );
+    
+    return WRITEV(ciptr,buf,size);
+}
+
+static int
+TRANS(LocalDisconnect)(ciptr)
+
+XtransConnInfo ciptr;
+
+{
+    PRMSG(2,"LocalDisconnect(%x->%d)\n", ciptr, ciptr->fd, 0);
+    
+    return 0;
+}
+
+static int
+TRANS(LocalClose)(ciptr)
+
+XtransConnInfo ciptr;
+
+{
+    struct sockaddr_un      *sockname=(struct sockaddr_un *) ciptr->addr;
+    char    path[200]; /* > sizeof sun_path +1 */
+    int        ret;
+    
+    PRMSG(2,"LocalClose(%x->%d)\n", ciptr, ciptr->fd ,0);
+    
+    ret=close(ciptr->fd);
+    
+    if(ciptr->flags
+       && sockname
+       && sockname->sun_family == AF_UNIX
+       && sockname->sun_path[0] )
+    {
+       strncpy(path,sockname->sun_path,
+               ciptr->addrlen-sizeof(sockname->sun_family));
+       unlink(path);
+    }
+    
+    return ret;
+}
+
+static int
+TRANS(LocalCloseForCloning)(ciptr)
+
+XtransConnInfo ciptr;
+
+{
+    int ret;
+
+    PRMSG(2,"LocalCloseForCloning(%x->%d)\n", ciptr, ciptr->fd ,0);
+    
+    /* Don't unlink path */
+
+    ret=close(ciptr->fd);
+    
+    return ret;
+}
+
+
+/*
+ * MakeAllCOTSServerListeners() will go through the entire Xtransports[]
+ * array defined in Xtrans.c and try to OpenCOTSServer() for each entry.
+ * We will add duplicate entries to that table so that the OpenCOTSServer()
+ * function will get called once for each type of local transport. 
+ *
+ * The TransName is in lowercase, so it will never match during a normal
+ * call to SelectTransport() in Xtrans.c.
+ */
+
+Xtransport     TRANS(LocalFuncs) = {
+       /* Local Interface */
+       "local",
+       TRANS_ALIAS | TRANS_LOCAL,
+#ifdef TRANS_CLIENT
+       TRANS(LocalOpenCOTSClient),
+#endif /* TRANS_CLIENT */
+#ifdef TRANS_SERVER
+       TRANS(LocalOpenCOTSServer),
+#endif /* TRANS_SERVER */
+#ifdef TRANS_CLIENT
+       TRANS(LocalOpenCLTSClient),
+#endif /* TRANS_CLIENT */
+#ifdef TRANS_SERVER
+       TRANS(LocalOpenCLTSServer),
+#endif /* TRANS_SERVER */
+#ifdef TRANS_REOPEN
+       TRANS(LocalReopenCOTSServer),
+       TRANS(LocalReopenCLTSServer),
+#endif
+       TRANS(LocalSetOption),
+#ifdef TRANS_SERVER
+       TRANS(LocalCreateListener),
+       NULL,                                   /* ResetListener */
+       TRANS(LocalAccept),
+#endif /* TRANS_SERVER */
+#ifdef TRANS_CLIENT
+       TRANS(LocalConnect),
+#endif /* TRANS_CLIENT */
+       TRANS(LocalBytesReadable),
+       TRANS(LocalRead),
+       TRANS(LocalWrite),
+       TRANS(LocalReadv),
+       TRANS(LocalWritev),
+       TRANS(LocalDisconnect),
+       TRANS(LocalClose),
+       TRANS(LocalCloseForCloning),
+};
+
+Xtransport     TRANS(PTSFuncs) = {
+       /* Local Interface */
+       "pts",
+       TRANS_LOCAL,
+#ifdef TRANS_CLIENT
+       TRANS(LocalOpenCOTSClient),
+#endif /* TRANS_CLIENT */
+#ifdef TRANS_SERVER
+       TRANS(LocalOpenCOTSServer),
+#endif /* TRANS_SERVER */
+#ifdef TRANS_CLIENT
+       TRANS(LocalOpenCLTSClient),
+#endif /* TRANS_CLIENT */
+#ifdef TRANS_SERVER
+       TRANS(LocalOpenCLTSServer),
+#endif /* TRANS_SERVER */
+#ifdef TRANS_REOPEN
+       TRANS(LocalReopenCOTSServer),
+       TRANS(LocalReopenCLTSServer),
+#endif
+       TRANS(LocalSetOption),
+#ifdef TRANS_SERVER
+       TRANS(LocalCreateListener),
+       NULL,                                   /* ResetListener */
+       TRANS(LocalAccept),
+#endif /* TRANS_SERVER */
+#ifdef TRANS_CLIENT
+       TRANS(LocalConnect),
+#endif /* TRANS_CLIENT */
+       TRANS(LocalBytesReadable),
+       TRANS(LocalRead),
+       TRANS(LocalWrite),
+       TRANS(LocalReadv),
+       TRANS(LocalWritev),
+       TRANS(LocalDisconnect),
+       TRANS(LocalClose),
+       TRANS(LocalCloseForCloning),
+};
+
+Xtransport     TRANS(NAMEDFuncs) = {
+       /* Local Interface */
+       "named",
+       TRANS_LOCAL,
+#ifdef TRANS_CLIENT
+       TRANS(LocalOpenCOTSClient),
+#endif /* TRANS_CLIENT */
+#ifdef TRANS_SERVER
+       TRANS(LocalOpenCOTSServer),
+#endif /* TRANS_SERVER */
+#ifdef TRANS_CLIENT
+       TRANS(LocalOpenCLTSClient),
+#endif /* TRANS_CLIENT */
+#ifdef TRANS_SERVER
+       TRANS(LocalOpenCLTSServer),
+#endif /* TRANS_SERVER */
+#ifdef TRANS_REOPEN
+       TRANS(LocalReopenCOTSServer),
+       TRANS(LocalReopenCLTSServer),
+#endif
+       TRANS(LocalSetOption),
+#ifdef TRANS_SERVER
+       TRANS(LocalCreateListener),
+       NULL,                                   /* ResetListener */
+       TRANS(LocalAccept),
+#endif /* TRANS_SERVER */
+#ifdef TRANS_CLIENT
+       TRANS(LocalConnect),
+#endif /* TRANS_CLIENT */
+       TRANS(LocalBytesReadable),
+       TRANS(LocalRead),
+       TRANS(LocalWrite),
+       TRANS(LocalReadv),
+       TRANS(LocalWritev),
+       TRANS(LocalDisconnect),
+       TRANS(LocalClose),
+       TRANS(LocalCloseForCloning),
+};
+
+Xtransport     TRANS(ISCFuncs) = {
+       /* Local Interface */
+       "isc",
+       TRANS_LOCAL,
+#ifdef TRANS_CLIENT
+       TRANS(LocalOpenCOTSClient),
+#endif /* TRANS_CLIENT */
+#ifdef TRANS_SERVER
+       TRANS(LocalOpenCOTSServer),
+#endif /* TRANS_SERVER */
+#ifdef TRANS_CLIENT
+       TRANS(LocalOpenCLTSClient),
+#endif /* TRANS_CLIENT */
+#ifdef TRANS_SERVER
+       TRANS(LocalOpenCLTSServer),
+#endif /* TRANS_SERVER */
+#ifdef TRANS_REOPEN
+       TRANS(LocalReopenCOTSServer),
+       TRANS(LocalReopenCLTSServer),
+#endif
+       TRANS(LocalSetOption),
+#ifdef TRANS_SERVER
+       TRANS(LocalCreateListener),
+       NULL,                                   /* ResetListener */
+       TRANS(LocalAccept),
+#endif /* TRANS_SERVER */
+#ifdef TRANS_CLIENT
+       TRANS(LocalConnect),
+#endif /* TRANS_CLIENT */
+       TRANS(LocalBytesReadable),
+       TRANS(LocalRead),
+       TRANS(LocalWrite),
+       TRANS(LocalReadv),
+       TRANS(LocalWritev),
+       TRANS(LocalDisconnect),
+       TRANS(LocalClose),
+       TRANS(LocalCloseForCloning),
+};
+Xtransport     TRANS(SCOFuncs) = {
+       /* Local Interface */
+       "sco",
+       TRANS_LOCAL,
+#ifdef TRANS_CLIENT
+       TRANS(LocalOpenCOTSClient),
+#endif /* TRANS_CLIENT */
+#ifdef TRANS_SERVER
+       TRANS(LocalOpenCOTSServer),
+#endif /* TRANS_SERVER */
+#ifdef TRANS_CLIENT
+       TRANS(LocalOpenCLTSClient),
+#endif /* TRANS_CLIENT */
+#ifdef TRANS_SERVER
+       TRANS(LocalOpenCLTSServer),
+#endif /* TRANS_SERVER */
+#ifdef TRANS_REOPEN
+       TRANS(LocalReopenCOTSServer),
+       TRANS(LocalReopenCLTSServer),
+#endif
+       TRANS(LocalSetOption),
+#ifdef TRANS_SERVER
+       TRANS(LocalCreateListener),
+       NULL,                                   /* ResetListener */
+       TRANS(LocalAccept),
+#endif /* TRANS_SERVER */
+#ifdef TRANS_CLIENT
+       TRANS(LocalConnect),
+#endif /* TRANS_CLIENT */
+       TRANS(LocalBytesReadable),
+       TRANS(LocalRead),
+       TRANS(LocalWrite),
+       TRANS(LocalReadv),
+       TRANS(LocalWritev),
+       TRANS(LocalDisconnect),
+       TRANS(LocalClose),
+       TRANS(LocalCloseForCloning),
+};