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Diffstat (limited to 'Xtranstli.c')
| -rw-r--r-- | Xtranstli.c | 1494 |
1 files changed, 1494 insertions, 0 deletions
diff --git a/Xtranstli.c b/Xtranstli.c new file mode 100644 index 0000000..b7daf70 --- /dev/null +++ b/Xtranstli.c @@ -0,0 +1,1494 @@ +/* $Xorg: Xtranstli.c,v 1.4 2001/02/09 02:04:07 xorgcvs Exp $ */ +/* + +Copyright 1993, 1994, 1998 The Open Group + +Permission to use, copy, modify, distribute, and sell this software and its +documentation for any purpose is hereby granted without fee, provided that +the above copyright notice appear in all copies and that both that +copyright notice and this permission notice appear in supporting +documentation. + +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 OPEN GROUP 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 Open Group 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 Open Group. + +*/ + +/* Copyright 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. + */ + +#include <sys/un.h> +#include <stropts.h> +#include <poll.h> +#include <tiuser.h> + +#include <netdir.h> +#include <netconfig.h> + + +/* + * This is the TLI implementation of the X Transport service layer + */ + +typedef struct _TLItrans2dev { + char *transname; + char *protofamily; + char *devcotsname; + char *devcltsname; + int family; +} TLItrans2dev; + +static TLItrans2dev TLItrans2devtab[] = { + {"inet","inet","/dev/tcp","/dev/udp",AF_INET}, + {"tcp","inet","/dev/tcp","/dev/udp",AF_INET}, + {"tli","loopback","/dev/ticots","/dev/ticlts",AF_UNIX}, +}; + +#define NUMTLIFAMILIES (sizeof(TLItrans2devtab)/sizeof(TLItrans2dev)) + +/* + * The local TLI connection, is a form of a local connection, so use a + * sockaddr_un for the address so that it will be treated just like the other + * local transports such as UNIX domain sockets, pts, and named. + */ + +#if defined(X11_t) +#define TLINODENAME "TLI:xserver" +#endif + +#if defined(XIM_t) +#define TLINODENAME "TLI:xim" +#endif + +#if defined(FS_t) || defined(FONT_t) +#define TLINODENAME "TLI:fontserver" +#endif + +#if defined(ICE_t) +#define TLINODENAME "TLI:ICE" +#endif + +#if defined(TEST_t) +#define TLINODENAME "TLI:test" +#endif + +#ifndef PORTBUFSIZE +#ifdef TRANS_SERVER +#define PORTBUFSIZE 64 +#else +#ifdef TRANS_CLIENT +#define PORTBUFSIZE 64 +#endif +#endif +#endif + + +/* + * These are some utility function used by the real interface function below. + */ + +static int +TRANS(TLISelectFamily)(family) + +char *family; + +{ + int i; + + PRMSG(3,"TRANS(TLISelectFamily)(%s)\n", family, 0,0 ); + + for(i=0;i<NUMTLIFAMILIES;i++) + { + if( !strcmp(family,TLItrans2devtab[i].transname) ) + return i; + } + return -1; +} + + +/* + * This function gets the local address of the transport and stores it in the + * XtransConnInfo structure for the connection. + */ + +static int +TRANS(TLIGetAddr)(ciptr) + +XtransConnInfo ciptr; + +{ + Xtransaddr sockname; + struct netbuf netbuf; + + PRMSG(3,"TRANS(TLIGetAddr)(%x)\n", ciptr, 0,0 ); + + netbuf.buf=(char *)&sockname; + netbuf.len=sizeof(sockname); + netbuf.maxlen=sizeof(sockname); + + if( t_getname(ciptr->fd,&netbuf,LOCALNAME) < 0 ) + { + PRMSG(1,"TRANS(TLIGetAddr): t_getname(LOCALNAME) failed: %d\n", + errno, 0,0 ); + return -1; + } + + PRMSG(4,"TRANS(TLIGetAddr): got family %d len %d\n", + ((struct sockaddr *) &sockname)->sa_family ,netbuf.len, 0 ); + + /* + * Everything looks good: fill in the XtransConnInfo structure. + */ + + if( ciptr->addr ) + free(ciptr->addr); + + if( (ciptr->addr=(char *)malloc(netbuf.len)) == NULL ) + { + PRMSG(1, "TRANS(TLIGetAddr): Can't allocate space for the addr\n", + 0,0,0); + return -1; + } + + ciptr->family=((struct sockaddr *) &sockname)->sa_family; + ciptr->addrlen=netbuf.len; + memcpy(ciptr->addr,&sockname,ciptr->addrlen); + + return 0; +} + + +/* + * This function gets the remote address of the socket and stores it in the + * XtransConnInfo structure for the connection. + */ + +static int +TRANS(TLIGetPeerAddr)(ciptr) + +XtransConnInfo ciptr; + +{ + Xtransaddr sockname; + struct netbuf netbuf; + + PRMSG(3,"TRANS(TLIGetPeerAddr)(%x)\n", ciptr, 0,0 ); + + netbuf.buf=(char *)&sockname; + netbuf.len=sizeof(sockname); + netbuf.maxlen=sizeof(sockname); + + if( t_getname(ciptr->fd,&netbuf,REMOTENAME) < 0 ) + { + PRMSG(1,"TRANS(TLIGetPeerAddr): t_getname(REMOTENAME) failed: %d\n", + errno, 0,0 ); + return -1; + } + + PRMSG(4,"TRANS(TLIGetPeerAddr): got family %d len %d\n", + ((struct sockaddr *) &sockname)->sa_family ,netbuf.len, 0 ); + + /* + * Everything looks good: fill in the XtransConnInfo structure. + */ + + if( ciptr->peeraddr ) + free(ciptr->peeraddr); + + if( (ciptr->peeraddr=(char *)malloc(netbuf.len)) == NULL ) + { + PRMSG(1, + "TRANS(TLIGetPeerAddr): Can't allocate space for the addr\n", + 0,0,0); + return -1; + } + + ciptr->peeraddrlen=netbuf.len; + memcpy(ciptr->peeraddr,&sockname,ciptr->peeraddrlen); + + return 0; +} + + +/* + * This function will establish a local name for the transport. This function + * do extra work for the local tli connection. It must create a sockaddr_un + * format address so that it will look like an AF_UNIX connection to the + * higher layer. + * + * This function will only be called by the OPENC?TSClient() functions since + * the local address is set up in the CreateListner() for the server ends. + */ + +static int +TRANS(TLITLIBindLocal)(fd,family,port) + +int fd; +int family; +char *port; + +{ + struct sockaddr_un *sunaddr=NULL; + struct t_bind *req=NULL; + + PRMSG(2, "TRANS(TLITLIBindLocal)(%d,%d,%s)\n", fd, family, port); + + if( family == AF_UNIX ) + { + if( (req=(struct t_bind *)t_alloc(fd,T_BIND,T_OPT|T_UDATA)) == NULL ) + { + PRMSG(1, + "TRANS(TLITLIBindLocal)() failed to allocate a t_bind\n", + 0,0,0 ); + return -1; + } + + if( (sunaddr=(struct sockaddr_un *) + malloc(sizeof(struct sockaddr_un))) == NULL ) + { + PRMSG(1, + "TRANS(TLITLIBindLocal): failed to allocate a sockaddr_un\n", + 0,0,0 ); + t_free((char *)req,T_BIND); + return -1; + } + + sunaddr->sun_family=AF_UNIX; + +#ifdef nuke + if( *port == '/' ) { /* A full pathname */ + (void) strcpy(sunaddr->sun_path, port); + } else { + (void) sprintf(sunaddr->sun_path,"%s%s", TLINODENAME, port ); + } +#endif /*NUKE*/ + + (void) sprintf(sunaddr->sun_path,"%s%d", + TLINODENAME, getpid()^time(NULL) ); + + PRMSG(4, "TRANS(TLITLIBindLocal): binding to %s\n", + sunaddr->sun_path, 0,0); + + req->addr.buf=(char *)sunaddr; + req->addr.len=sizeof(*sunaddr); + req->addr.maxlen=sizeof(*sunaddr); + } + + if( t_bind(fd, req, NULL) < 0 ) + { + PRMSG(1, + "TRANS(TLIBindLocal): Unable to bind TLI device to %s\n", + port, 0,0 ); + if (sunaddr) + free((char *) sunaddr); + if (req) + t_free((char *)req,T_BIND); + return -1; + } + return 0; +} + +static XtransConnInfo +TRANS(TLIOpen)(device) + +char *device; + +{ + XtransConnInfo ciptr; + + PRMSG(3,"TRANS(TLIOpen)(%s)\n", device, 0,0 ); + + if( (ciptr=(XtransConnInfo)calloc(1,sizeof(struct _XtransConnInfo))) == NULL ) + { + PRMSG(1, "TRANS(TLIOpen): calloc failed\n", 0,0,0 ); + return NULL; + } + + if( (ciptr->fd=t_open( device, O_RDWR, NULL )) < 0 ) + { + PRMSG(1, "TRANS(TLIOpen): t_open failed for %s\n", device, 0,0 ); + free(ciptr); + return NULL; + } + + return ciptr; +} + + +#ifdef TRANS_REOPEN + +static XtransConnInfo +TRANS(TLIReopen)(device, fd, port) + +char *device; +int fd; +char *port; + +{ + XtransConnInfo ciptr; + + PRMSG(3,"TRANS(TLIReopen)(%s,%d, %s)\n", device, fd, port ); + + if (t_sync (fd) < 0) + { + PRMSG(1, "TRANS(TLIReopen): t_sync failed\n", 0,0,0 ); + return NULL; + } + + if( (ciptr=(XtransConnInfo)calloc(1,sizeof(struct _XtransConnInfo))) == NULL ) + { + PRMSG(1, "TRANS(TLIReopen): calloc failed\n", 0,0,0 ); + return NULL; + } + + ciptr->fd = fd; + + return ciptr; +} + +#endif /* TRANS_REOPEN */ + + +static int +TRANS(TLIAddrToNetbuf)(tlifamily, host, port, netbufp) + +int tlifamily; +char *host; +char *port; +struct netbuf *netbufp; + +{ + struct netconfig *netconfigp; + struct nd_hostserv nd_hostserv; + struct nd_addrlist *nd_addrlistp = NULL; + void *handlep; + long lport; + + PRMSG(3,"TRANS(TLIAddrToNetbuf)(%d,%s,%s)\n", tlifamily, host, port ); + + if( (handlep=setnetconfig()) == NULL ) + return -1; + + lport = strtol (port, (char**)NULL, 10); + if (lport < 1024 || lport > USHRT_MAX) + return -1; + + nd_hostserv.h_host = host; + if( port && *port ) { + nd_hostserv.h_serv = port; + } else { + nd_hostserv.h_serv = NULL; + } + + while( (netconfigp=getnetconfig(handlep)) != NULL ) + { + if( strcmp(netconfigp->nc_protofmly, + TLItrans2devtab[tlifamily].protofamily) != 0 ) + continue; + PRMSG(5,"Trying to resolve %s.%s for %s\n", + host, port, TLItrans2devtab[tlifamily].protofamily ); + if( netdir_getbyname(netconfigp,&nd_hostserv, &nd_addrlistp) == 0 ) + { + /* we have at least one address to use */ + + PRMSG(5, "found address for %s.%s\n", host, port, 0 ); + PRMSG(5, "%s\n",taddr2uaddr(netconfigp,nd_addrlistp->n_addrs), + 0,0 ); + + memcpy(netbufp->buf,nd_addrlistp->n_addrs->buf, + nd_addrlistp->n_addrs->len); + netbufp->len=nd_addrlistp->n_addrs->len; + endnetconfig(handlep); + return 0; + } + } + endnetconfig(handlep); + + return -1; +} + +/* + * These functions are the interface supplied in the Xtransport structure + */ + +#ifdef TRANS_CLIENT + +static XtransConnInfo +TRANS(TLIOpenCOTSClient)(thistrans, protocol, host, port) + +Xtransport *thistrans; +char *protocol; +char *host; +char *port; + +{ + XtransConnInfo ciptr; + int i; + + PRMSG(2,"TRANS(TLIOpenCOTSClient)(%s,%s,%s)\n", protocol, host, port ); + + if( (i=TRANS(TLISelectFamily)(thistrans->TransName)) < 0 ) + { + PRMSG(1,"TRANS(TLIOpenCOTSClient): Unable to determine device for %s\n", + thistrans->TransName, 0,0 ); + return NULL; + } + + if( (ciptr=TRANS(TLIOpen)(TLItrans2devtab[i].devcotsname)) == NULL ) + { + PRMSG(1,"TRANS(TLIOpenCOTSClient): Unable to open device for %s\n", + thistrans->TransName, 0,0 ); + return NULL; + } + + if( TRANS(TLITLIBindLocal)(ciptr->fd,TLItrans2devtab[i].family,port) < 0 ) + { + PRMSG(1, + "TRANS(TLIOpenCOTSClient): TRANS(TLITLIBindLocal)() failed: %d\n", + errno, 0,0 ); + t_close(ciptr->fd); + free(ciptr); + return NULL; + } + + if( TRANS(TLIGetAddr)(ciptr) < 0 ) + { + PRMSG(1, + "TRANS(TLIOpenCOTSClient): TRANS(TLIGetAddr)() failed: %d\n", + errno, 0,0 ); + t_close(ciptr->fd); + free(ciptr); + return NULL; + } + + /* Save the TLIFamily for later use in TLIAddrToNetbuf() lookups */ + ciptr->index = i; + + return ciptr; +} + +#endif /* TRANS_CLIENT */ + + +#ifdef TRANS_SERVER + +static XtransConnInfo +TRANS(TLIOpenCOTSServer)(thistrans, protocol, host, port) + +Xtransport *thistrans; +char *protocol; +char *host; +char *port; + +{ + XtransConnInfo ciptr; + int i; + + PRMSG(2,"TRANS(TLIOpenCOTSServer)(%s,%s,%s)\n", protocol, host, port ); + + if( (i=TRANS(TLISelectFamily)(thistrans->TransName)) < 0 ) + { + PRMSG(1, + "TRANS(TLIOpenCOTSServer): Unable to determine device for %s\n", + thistrans->TransName, 0,0 ); + return NULL; + } + + if( (ciptr=TRANS(TLIOpen)(TLItrans2devtab[i].devcotsname)) == NULL ) + { + PRMSG(1, + "TRANS(TLIOpenCOTSServer): Unable to open device for %s\n", + thistrans->TransName, 0,0 ); + return NULL; + } + + /* Set the family type */ + + ciptr->family = TLItrans2devtab[i].family; + + + /* Save the TLIFamily for later use in TLIAddrToNetbuf() lookups */ + + ciptr->index = i; + + return ciptr; +} + +#endif /* TRANS_SERVER */ + + +#ifdef TRANS_CLIENT + +static XtransConnInfo +TRANS(TLIOpenCLTSClient)(thistrans, protocol, host, port) + +Xtransport *thistrans; +char *protocol; +char *host; +char *port; + +{ + XtransConnInfo ciptr; + int i; + + PRMSG(2,"TRANS(TLIOpenCLTSClient)(%s,%s,%s)\n", protocol, host, port ); + + if( (i=TRANS(TLISelectFamily)(thistrans->TransName)) < 0 ) + { + PRMSG(1, + "TRANS(TLIOpenCLTSClient): Unable to determine device for %s\n", + thistrans->TransName, 0,0 ); + return NULL; + } + + if( (ciptr=TRANS(TLIOpen)(TLItrans2devtab[i].devcltsname)) == NULL ) + { + PRMSG(1, + "TRANS(TLIOpenCLTSClient): Unable to open device for %s\n", + thistrans->TransName, 0,0 ); + return NULL; + } + + if( TRANS(TLITLIBindLocal)(ciptr->fd,TLItrans2devtab[i].family,port) < 0 ) + { + PRMSG(1, + "TRANS(TLIOpenCLTSClient): TRANS(TLITLIBindLocal)() failed: %d\n", + errno, 0,0 ); + t_close(ciptr->fd); + free(ciptr); + return NULL; + } + + if( TRANS(TLIGetAddr)(ciptr) < 0 ) + { + PRMSG(1, + "TRANS(TLIOpenCLTSClient): TRANS(TLIGetPeerAddr)() failed: %d\n", + errno, 0,0 ); + t_close(ciptr->fd); + free(ciptr); + return NULL; + } + + return ciptr; +} + +#endif /* TRANS_CLIENT */ + + +#ifdef TRANS_SERVER + +static XtransConnInfo +TRANS(TLIOpenCLTSServer)(thistrans, protocol, host, port) + +Xtransport *thistrans; +char *protocol; +char *host; +char *port; + +{ + XtransConnInfo ciptr; + int i; + + PRMSG(2,"TRANS(TLIOpenCLTSServer)(%s,%s,%s)\n", protocol, host, port ); + + if( (i=TRANS(TLISelectFamily)(thistrans->TransName)) < 0 ) + { + PRMSG(1, + "TRANS(TLIOpenCLTSServer): Unable to determine device for %s\n", + thistrans->TransName, 0,0 ); + return NULL; + } + + if( (ciptr=TRANS(TLIOpen)(TLItrans2devtab[i].devcltsname)) == NULL ) + { + PRMSG(1, + "TRANS(TLIOpenCLTSServer): Unable to open device for %s\n", + thistrans->TransName, 0,0 ); + return NULL; + } + + return ciptr; +} + +#endif /* TRANS_SERVER */ + + +#ifdef TRANS_REOPEN + +static XtransConnInfo +TRANS(TLIReopenCOTSServer)(thistrans, fd, port) + +Xtransport *thistrans; +int fd; +char *port; + +{ + XtransConnInfo ciptr; + int i; + + PRMSG(2,"TRANS(TLIReopenCOTSServer)(%d, %s)\n", fd, port, 0 ); + + if( (i=TRANS(TLISelectFamily)(thistrans->TransName)) < 0 ) + { + PRMSG(1, + "TRANS(TLIReopenCOTSServer): Unable to determine device for %s\n", + thistrans->TransName, 0,0 ); + return NULL; + } + + if( (ciptr=TRANS(TLIReopen)( + TLItrans2devtab[i].devcotsname, fd, port)) == NULL ) + { + PRMSG(1, + "TRANS(TLIReopenCOTSServer): Unable to open device for %s\n", + thistrans->TransName, 0,0 ); + return NULL; + } + + /* Save the TLIFamily for later use in TLIAddrToNetbuf() lookups */ + + ciptr->index = i; + + return ciptr; +} + + +static XtransConnInfo +TRANS(TLIReopenCLTSServer)(thistrans, fd, port) + +Xtransport *thistrans; +int fd; +char *port; + +{ + XtransConnInfo ciptr; + int i; + + PRMSG(2,"TRANS(TLIReopenCLTSServer)(%d, %s)\n", fd, port, 0 ); + + if( (i=TRANS(TLISelectFamily)(thistrans->TransName)) < 0 ) + { + PRMSG(1, + "TRANS(TLIReopenCLTSServer): Unable to determine device for %s\n", + thistrans->TransName, 0,0 ); + return NULL; + } + + if( (ciptr=TRANS(TLIReopen)( + TLItrans2devtab[i].devcltsname, fd, port)) == NULL ) + { + PRMSG(1, + "TRANS(TLIReopenCLTSServer): Unable to open device for %s\n", + thistrans->TransName, 0,0 ); + return NULL; + } + + ciptr->index = i; + + return ciptr; +} + +#endif /* TRANS_REOPEN */ + + +static +TRANS(TLISetOption)(ciptr, option, arg) + +XtransConnInfo ciptr; +int option; +int arg; + +{ + PRMSG(2,"TRANS(TLISetOption)(%d,%d,%d)\n", ciptr->fd, option, arg ); + + return -1; +} + + +#ifdef TRANS_SERVER + +static +TRANS(TLICreateListener)(ciptr, req) + +XtransConnInfo ciptr; +struct t_bind *req; + +{ + struct t_bind *ret; + + PRMSG(2,"TRANS(TLICreateListener)(%x->%d,%x)\n", ciptr, ciptr->fd, req ); + + if( (ret=(struct t_bind *)t_alloc(ciptr->fd,T_BIND,T_ALL)) == NULL ) + { + PRMSG(1, "TRANS(TLICreateListener): failed to allocate a t_bind\n", + 0,0,0 ); + t_free((char *)req,T_BIND); + return TRANS_CREATE_LISTENER_FAILED; + } + + if( t_bind(ciptr->fd, req, ret) < 0 ) + { + PRMSG(1, "TRANS(TLICreateListener): t_bind failed\n", 0,0,0 ); + t_free((char *)req,T_BIND); + t_free((char *)ret,T_BIND); + return TRANS_CREATE_LISTENER_FAILED; + } + + if( memcmp(req->addr.buf,ret->addr.buf,req->addr.len) != 0 ) + { + PRMSG(1, "TRANS(TLICreateListener): unable to bind to %x\n", + req, 0,0 ); + t_free((char *)req,T_BIND); + t_free((char *)ret,T_BIND); + return TRANS_ADDR_IN_USE; + } + + /* + * Everything looks good: fill in the XtransConnInfo structure. + */ + + if( (ciptr->addr=(char *)malloc(ret->addr.len)) == NULL ) + { + PRMSG(1, + "TRANS(TLICreateListener): Unable to allocate space for the address\n", + 0,0,0 ); + t_free((char *)req,T_BIND); + t_free((char *)ret, T_BIND); + return TRANS_CREATE_LISTENER_FAILED; + } + + ciptr->addrlen=ret->addr.len; + memcpy(ciptr->addr,ret->addr.buf,ret->addr.len); + + t_free((char *)req,T_BIND); + t_free((char *)ret, T_BIND); + + return 0; +} + + +static +TRANS(TLIINETCreateListener)(ciptr, port) + +XtransConnInfo ciptr; +char *port; + +{ + char portbuf[PORTBUFSIZE]; + struct t_bind *req; + struct sockaddr_in *sinaddr; + long tmpport; + + PRMSG(2,"TRANS(TLIINETCreateListener)(%x->%d,%s)\n", ciptr, + ciptr->fd, port ? port : "NULL" ); + +#ifdef X11_t + /* + * X has a well known port, that is transport dependent. 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(). + */ + + if (is_numeric (port)) + { + tmpport = X_TCP_PORT + strtol (port, (char**)NULL, 10); + sprintf(portbuf,"%u", tmpport); + port = portbuf; + } +#endif + + if( (req=(struct t_bind *)t_alloc(ciptr->fd,T_BIND,T_ALL)) == NULL ) + { + PRMSG(1, + "TRANS(TLIINETCreateListener): failed to allocate a t_bind\n", + 0,0,0 ); + return TRANS_CREATE_LISTENER_FAILED; + } + + if( port && *port ) { + if(TRANS(TLIAddrToNetbuf)(ciptr->index,HOST_SELF,port,&(req->addr)) < 0) + { + PRMSG(1, + "TRANS(TLIINETCreateListener): can't resolve name:HOST_SELF.%s\n", + port, 0,0 ); + t_free((char *)req,T_BIND); + return TRANS_CREATE_LISTENER_FAILED; + } + } else { + sinaddr=(struct sockaddr_in *) req->addr.buf; + sinaddr->sin_family=AF_INET; + sinaddr->sin_port=htons(0); + sinaddr->sin_addr.s_addr=0; + } + + /* Set the qlen */ + + req->qlen=1; + + return TRANS(TLICreateListener)(ciptr, req); +} + + +static +TRANS(TLITLICreateListener)(ciptr, port) + +XtransConnInfo ciptr; +char *port; + +{ + struct t_bind *req; + struct sockaddr_un *sunaddr; + int ret_value; + + PRMSG(2,"TRANS(TLITLICreateListener)(%x->%d,%s)\n", ciptr, ciptr->fd, + port ? port : "NULL"); + + if( (req=(struct t_bind *)t_alloc(ciptr->fd,T_BIND,T_OPT|T_UDATA)) == NULL ) + { + PRMSG(1, + "TRANS(TLITLICreateListener): failed to allocate a t_bind\n", + 0,0,0 ); + return TRANS_CREATE_LISTENER_FAILED; + } + + if( (sunaddr=(struct sockaddr_un *) + malloc(sizeof(struct sockaddr_un))) == NULL ) + { + PRMSG(1, + "TRANS(TLITLICreateListener): failed to allocate a sockaddr_un\n", + 0,0,0 ); + t_free((char *)req,T_BIND); + return TRANS_CREATE_LISTENER_FAILED; + } + + sunaddr->sun_family=AF_UNIX; + if( port && *port ) { + if( *port == '/' ) { /* A full pathname */ + (void) strcpy(sunaddr->sun_path, port); + } else { + (void) sprintf(sunaddr->sun_path,"%s%s", TLINODENAME, port ); + } + } else { + (void) sprintf(sunaddr->sun_path,"%s%d", TLINODENAME, getpid()); + } + + req->addr.buf=(char *)sunaddr; + req->addr.len=sizeof(*sunaddr); + req->addr.maxlen=sizeof(*sunaddr); + + /* Set the qlen */ + + req->qlen=1; + + ret_value = TRANS(TLICreateListener)(ciptr, req); + + free((char *) sunaddr); + + return ret_value; +} + + +static XtransConnInfo +TRANS(TLIAccept)(ciptr, status) + +XtransConnInfo ciptr; +int *status; + +{ + struct t_call *call; + XtransConnInfo newciptr; + int i; + + PRMSG(2,"TRANS(TLIAccept)(%x->%d)\n", ciptr, ciptr->fd, 0 ); + + if( (call=(struct t_call *)t_alloc(ciptr->fd,T_CALL,T_ALL)) == NULL ) + { + PRMSG(1, "TRANS(TLIAccept)() failed to allocate a t_call\n", 0,0,0 ); + *status = TRANS_ACCEPT_BAD_MALLOC; + return NULL; + } + + if( t_listen(ciptr->fd,call) < 0 ) + { + extern char *t_errlist[]; + extern int t_errno; + PRMSG(1, "TRANS(TLIAccept)() t_listen() failed\n", 0,0,0 ); + PRMSG(1, "%s\n", t_errlist[t_errno], 0,0 ); + t_free((char *)call,T_CALL); + *status = TRANS_ACCEPT_MISC_ERROR; + return NULL; + } + + /* + * Now we need to set up the new endpoint for the incoming connection. + */ + + i=ciptr->index; /* Makes the next line more readable */ + + if( (newciptr=TRANS(TLIOpen)(TLItrans2devtab[i].devcotsname)) == NULL ) + { + PRMSG(1, "TRANS(TLIAccept)() failed to open a new endpoint\n", 0,0,0 ); + t_free((char *)call,T_CALL); + *status = TRANS_ACCEPT_MISC_ERROR; + return NULL; + } + + if( TRANS(TLITLIBindLocal)(newciptr->fd,TLItrans2devtab[i].family,"") < 0 ) + { + PRMSG(1, + "TRANS(TLIAccept): TRANS(TLITLIBindLocal)() failed: %d\n", + errno, 0,0 ); + t_free((char *)call,T_CALL); + t_close(newciptr->fd); + free(newciptr); + *status = TRANS_ACCEPT_MISC_ERROR; + return NULL; + } + + + if( t_accept(ciptr->fd,newciptr->fd,call) < 0 ) + { + extern char *t_errlist[]; + extern int t_errno; + PRMSG(1, "TRANS(TLIAccept)() t_accept() failed\n", 0,0,0 ); + PRMSG(1, "%s\n", t_errlist[t_errno], 0,0 ); + t_free((char *)call,T_CALL); + t_close(newciptr->fd); + free(newciptr); + *status = TRANS_ACCEPT_FAILED; + return NULL; + } + + t_free((char *)call,T_CALL); + + if( TRANS(TLIGetAddr)(newciptr) < 0 ) + { + PRMSG(1, + "TRANS(TLIAccept): TRANS(TLIGetAddr)() failed: %d\n", + errno, 0,0 ); + t_close(newciptr->fd); + free(newciptr); + *status = TRANS_ACCEPT_MISC_ERROR; + return NULL; + } + + if( TRANS(TLIGetPeerAddr)(newciptr) < 0 ) + { + PRMSG(1, + "TRANS(TLIAccept): TRANS(TLIGetPeerAddr)() failed: %d\n", + errno, 0,0 ); + t_close(newciptr->fd); + free(newciptr->addr); + free(newciptr); + *status = TRANS_ACCEPT_MISC_ERROR; + return NULL; + } + + if( ioctl(newciptr->fd, I_POP,"timod") < 0 ) + { + PRMSG(1, "TRANS(TLIAccept)() ioctl(I_POP, \"timod\") failed %d\n", + errno,0,0 ); + t_close(newciptr->fd); + free(newciptr->addr); + free(newciptr); + *status = TRANS_ACCEPT_MISC_ERROR; + return NULL; + } + + if( ioctl(newciptr->fd, I_PUSH,"tirdwr") < 0 ) + { + PRMSG(1, "TRANS(TLIAccept)() ioctl(I_PUSH,\"tirdwr\") failed %d\n", + errno,0,0 ); + t_close(newciptr->fd); + free(newciptr->addr); + free(newciptr); + *status = TRANS_ACCEPT_MISC_ERROR; + return NULL; + } + + *status = 0; + + return newciptr; +} + +#endif /* TRANS_SERVER */ + + +#ifdef TRANS_CLIENT + +static +TRANS(TLIConnect)(ciptr, sndcall ) + +XtransConnInfo ciptr; +struct t_call *sndcall; + +{ + PRMSG(2, "TRANS(TLIConnect)(%x->%d,%x)\n", ciptr, ciptr->fd, sndcall); + + if( t_connect(ciptr->fd,sndcall,NULL) < 0 ) + { + extern char *t_errlist[]; + extern int t_errno; + PRMSG(1, "TRANS(TLIConnect)() t_connect() failed\n", 0,0,0 ); + PRMSG(1, "%s\n", t_errlist[t_errno], 0,0 ); + t_free((char *)sndcall,T_CALL); + if (t_errno == TLOOK && t_look(ciptr->fd) == T_DISCONNECT) + { + t_rcvdis(ciptr->fd,NULL); + return TRANS_TRY_CONNECT_AGAIN; + } + else + return TRANS_CONNECT_FAILED; + } + + t_free((char *)sndcall,T_CALL); + + /* + * Sync up the address fields of ciptr. + */ + + if( TRANS(TLIGetAddr)(ciptr) < 0 ) + { + PRMSG(1, + "TRANS(TLIConnect): TRANS(TLIGetAddr)() failed: %d\n", + errno, 0,0 ); + return TRANS_CONNECT_FAILED; + } + + if( TRANS(TLIGetPeerAddr)(ciptr) < 0 ) + { + PRMSG(1, + "TRANS(TLIConnect): TRANS(TLIGetPeerAddr)() failed: %d\n", + errno, 0,0 ); + return TRANS_CONNECT_FAILED; + } + + if( ioctl(ciptr->fd, I_POP,"timod") < 0 ) + { + PRMSG(1, "TRANS(TLIConnect)() ioctl(I_POP,\"timod\") failed %d\n", + errno,0,0 ); + return TRANS_CONNECT_FAILED; + } + + if( ioctl(ciptr->fd, I_PUSH,"tirdwr") < 0 ) + { + PRMSG(1, "TRANS(TLIConnect)() ioctl(I_PUSH,\"tirdwr\") failed %d\n", + errno,0,0 ); + return TRANS_CONNECT_FAILED; + } + + return 0; +} + + +static +TRANS(TLIINETConnect)(ciptr, host, port) + +XtransConnInfo ciptr; +char *host; +char *port; + +{ + char portbuf[PORTBUFSIZE]; + struct t_call *sndcall; + long tmpport; + + PRMSG(2, "TRANS(TLIINETConnect)(%s,%s)\n", host, port, 0); + +#ifdef 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(). + */ + + if (is_numeric (port)) + { + tmpport = X_TCP_PORT + strtol (port, (char**)NULL, 10); + sprintf(portbuf,"%u", tmpport ); + port = portbuf; + } +#endif + + if( (sndcall=(struct t_call *)t_alloc(ciptr->fd,T_CALL,T_ALL)) == NULL ) + { + PRMSG(1, "TRANS(TLIINETConnect)() failed to allocate a t_call\n", 0,0,0 ); + return TRANS_CONNECT_FAILED; + } + + if( TRANS(TLIAddrToNetbuf)(ciptr->index, host, port, &(sndcall->addr) ) < 0 ) + { + PRMSG(1, "TRANS(TLIINETConnect)() unable to resolve name:%s.%s\n", + host, port, 0 ); + t_free((char *)sndcall,T_CALL); + return TRANS_CONNECT_FAILED; + } + + return TRANS(TLIConnect)(ciptr, sndcall ); +} + + +static +TRANS(TLITLIConnect)(ciptr, host, port) + +XtransConnInfo ciptr; +char *host; +char *port; + +{ + struct t_call *sndcall; + struct sockaddr_un *sunaddr; + int ret_value; + + PRMSG(2, "TRANS(TLITLIConnect)(%s,%s)\n", host, port, 0); + + if( (sndcall=(struct t_call *)t_alloc(ciptr->fd,T_CALL,T_OPT|T_UDATA)) == NULL ) + { + PRMSG(1, "TRANS(TLITLIConnect)() failed to allocate a t_call\n", 0,0,0 ); + return TRANS_CONNECT_FAILED; + } + + if( (sunaddr=(struct sockaddr_un *) + malloc(sizeof(struct sockaddr_un))) == NULL ) + { + PRMSG(1, + "TRANS(TLITLIConnect): failed to allocate a sockaddr_un\n", + 0,0,0 ); + t_free((char *)sndcall,T_CALL); + return TRANS_CONNECT_FAILED; + } + + sunaddr->sun_family=AF_UNIX; + if( *port == '/' || + strncmp (port, TLINODENAME, strlen (TLINODENAME)) == 0) { + /* Use the port as is */ + (void) strcpy(sunaddr->sun_path, port); + } else { + (void) sprintf(sunaddr->sun_path,"%s%s", TLINODENAME, port ); + } + + sndcall->addr.buf=(char *)sunaddr; + sndcall->addr.len=sizeof(*sunaddr); + sndcall->addr.maxlen=sizeof(*sunaddr); + + ret_value = TRANS(TLIConnect)(ciptr, sndcall ); + + free((char *) sunaddr); + + return ret_value; +} + +#endif /* TRANS_CLIENT */ + + +static +TRANS(TLIBytesReadable)(ciptr, pend) + +XtransConnInfo ciptr; +BytesReadable_t *pend; + +{ + int ret; + struct pollfd filedes; + + PRMSG(2, "TRANS(TLIByteReadable)(%x->%d,%x)\n", ciptr, ciptr->fd, pend ); + + /* + * This function should detect hangup conditions. Use poll to check + * if no data is present. On SVR4, the M_HANGUP message sits on the + * streams head, and ioctl(N_READ) keeps returning 0 because there is + * no data available. The hangup goes undetected, and the client hangs. + */ + + ret=ioctl(ciptr->fd, I_NREAD, (char *)pend); + + if( ret != 0 ) + return ret; /* Data present or error */ + + + /* Zero data, or POLLHUP message */ + + filedes.fd=ciptr->fd; + filedes.events=POLLIN; + + ret=poll(&filedes, 1, 0); + + if( ret == 0 ) { + *pend=0; + return 0; /* Really, no data */ + } + + if( ret < 0 ) + return -1; /* just pass back the error */ + + if( filedes.revents & (POLLHUP|POLLERR) ) /* check for hangup */ + return -1; + + /* Should only get here if data arrived after the first ioctl() */ + return ioctl(ciptr->fd, I_NREAD, (char *)pend); +} + + +static +TRANS(TLIRead)(ciptr, buf, size) + +XtransConnInfo ciptr; +char *buf; +int size; + +{ + PRMSG(2, "TRANS(TLIRead)(%d,%x,%d)\n", ciptr->fd, buf, size ); + + return read(ciptr->fd,buf,size); +} + + +static +TRANS(TLIWrite)(ciptr, buf, size) + +XtransConnInfo ciptr; +char *buf; +int size; + +{ + PRMSG(2, "TRANS(TLIWrite)(%d,%x,%d)\n", ciptr->fd, buf, size ); + + return write(ciptr->fd,buf,size); +} + + +static +TRANS(TLIReadv)(ciptr, buf, size) + +XtransConnInfo ciptr; +struct iovec *buf; +int size; + +{ + PRMSG(2, "TRANS(TLIReadv)(%d,%x,%d)\n", ciptr->fd, buf, size ); + + return READV(ciptr,buf,size); +} + + +static +TRANS(TLIWritev)(ciptr, buf, size) + +XtransConnInfo ciptr; +struct iovec *buf; +int size; + +{ + PRMSG(2, "TRANS(TLIWritev)(%d,%x,%d)\n", ciptr->fd, buf, size ); + + return WRITEV(ciptr,buf,size); +} + + +static +TRANS(TLIDisconnect)(ciptr) + +XtransConnInfo ciptr; + +{ + PRMSG(2, "TRANS(TLIDisconnect)(%x->%d)\n", ciptr, ciptr->fd, 0 ); + + /* + * Restore the TLI modules so that the connection can be properly shutdown. + * This avoids the situation where a connection goes into the TIME_WAIT + * state, and the address remains unavailable for a while. + */ + ioctl(ciptr->fd, I_POP,"tirdwr"); + ioctl(ciptr->fd, I_PUSH,"timod"); + + t_snddis(ciptr->fd,NULL); + + return 0; +} + + +static +TRANS(TLIClose)(ciptr) + +XtransConnInfo ciptr; + +{ + PRMSG(2, "TRANS(TLIClose)(%x->%d)\n", ciptr, ciptr->fd, 0 ); + + t_unbind(ciptr->fd); + + return (t_close(ciptr->fd)); +} + + +static +TRANS(TLICloseForCloning)(ciptr) + +XtransConnInfo ciptr; + +{ + /* + * Don't unbind. + */ + + PRMSG(2, "TRANS(TLICloseForCloning)(%x->%d)\n", ciptr, ciptr->fd, 0 ); + + return (t_close(ciptr->fd)); +} + + +Xtransport TRANS(TLITCPFuncs) = { + /* TLI Interface */ + "tcp", + 0, +#ifdef TRANS_CLIENT + TRANS(TLIOpenCOTSClient), +#endif /* TRANS_CLIENT */ +#ifdef TRANS_SERVER + TRANS(TLIOpenCOTSServer), +#endif /* TRANS_SERVER */ +#ifdef TRANS_CLIENT + TRANS(TLIOpenCLTSClient), +#endif /* TRANS_CLIENT */ +#ifdef TRANS_SERVER + TRANS(TLIOpenCLTSServer), +#endif /* TRANS_SERVER */ +#ifdef TRANS_REOPEN + TRANS(TLIReopenCOTSServer), + TRANS(TLIReopenCLTSServer), +#endif + TRANS(TLISetOption), +#ifdef TRANS_SERVER + TRANS(TLIINETCreateListener), + NULL, /* ResetListener */ + TRANS(TLIAccept), +#endif /* TRANS_SERVER */ +#ifdef TRANS_CLIENT + TRANS(TLIINETConnect), +#endif /* TRANS_CLIENT */ + TRANS(TLIBytesReadable), + TRANS(TLIRead), + TRANS(TLIWrite), + TRANS(TLIReadv), + TRANS(TLIWritev), + TRANS(TLIDisconnect), + TRANS(TLIClose), + TRANS(TLICloseForCloning), +}; + +Xtransport TRANS(TLIINETFuncs) = { + /* TLI Interface */ + "inet", + TRANS_ALIAS, +#ifdef TRANS_CLIENT + TRANS(TLIOpenCOTSClient), +#endif /* TRANS_CLIENT */ +#ifdef TRANS_SERVER + TRANS(TLIOpenCOTSServer), +#endif /* TRANS_SERVER */ +#ifdef TRANS_CLIENT + TRANS(TLIOpenCLTSClient), +#endif /* TRANS_CLIENT */ +#ifdef TRANS_SERVER + TRANS(TLIOpenCLTSServer), +#endif /* TRANS_SERVER */ +#ifdef TRANS_REOPEN + TRANS(TLIReopenCOTSServer), + TRANS(TLIReopenCLTSServer), +#endif + TRANS(TLISetOption), +#ifdef TRANS_SERVER + TRANS(TLIINETCreateListener), + NULL, /* ResetListener */ + TRANS(TLIAccept), +#endif /* TRANS_SERVER */ +#ifdef TRANS_CLIENT + TRANS(TLIINETConnect), +#endif /* TRANS_CLIENT */ + TRANS(TLIBytesReadable), + TRANS(TLIRead), + TRANS(TLIWrite), + TRANS(TLIReadv), + TRANS(TLIWritev), + TRANS(TLIDisconnect), + TRANS(TLIClose), + TRANS(TLICloseForCloning), +}; + +Xtransport TRANS(TLITLIFuncs) = { + /* TLI Interface */ + "tli", + 0, +#ifdef TRANS_CLIENT + TRANS(TLIOpenCOTSClient), +#endif /* TRANS_CLIENT */ +#ifdef TRANS_SERVER + TRANS(TLIOpenCOTSServer), +#endif /* TRANS_SERVER */ +#ifdef TRANS_CLIENT + TRANS(TLIOpenCLTSClient), +#endif /* TRANS_CLIENT */ +#ifdef TRANS_SERVER + TRANS(TLIOpenCLTSServer), +#endif /* TRANS_SERVER */ +#ifdef TRANS_REOPEN + TRANS(TLIReopenCOTSServer), + TRANS(TLIReopenCLTSServer), +#endif + TRANS(TLISetOption), +#ifdef TRANS_SERVER + TRANS(TLITLICreateListener), + NULL, /* ResetListener */ + TRANS(TLIAccept), +#endif /* TRANS_SERVER */ +#ifdef TRANS_CLIENT + TRANS(TLITLIConnect), +#endif /* TRANS_CLIENT */ + TRANS(TLIBytesReadable), + TRANS(TLIRead), + TRANS(TLIWrite), + TRANS(TLIReadv), + TRANS(TLIWritev), + TRANS(TLIDisconnect), + TRANS(TLIClose), + TRANS(TLICloseForCloning), +}; |