888 lines
26 KiB
C
888 lines
26 KiB
C
/* $XFree86: xc/lib/xtrans/Xtransos2.c,v 3.9tsi Exp $ */
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/*
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* (c) Copyright 1996 by Sebastien Marineau and Holger Veit
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* <marineau@genie.uottawa.ca>
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* <Holger.Veit@gmd.de>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* HOLGER VEIT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
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* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Except as contained in this notice, the name of Sebastien Marineau or Holger Veit shall not be
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* used in advertising or otherwise to promote the sale, use or other dealings
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* in this Software without prior written authorization from Holger Veit or Sebastien Marineau.
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*
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*/
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/* Implementation of the OS/2 local pipe transport layer */
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#define INCL_DOSNMPIPES
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#define INCL_DOSPROCESS
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#define INCL_DOSERRORS
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#define INCL_DOSFILEMGR
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#undef BYTE
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#undef BOOL
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#include <os2.h>
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#ifdef XSERV_t
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extern HEV hPipeSem;
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BOOL init_server_pipes();
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#endif
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/*************************************************************************
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* Independent Layer
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*************************************************************************/
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#ifdef TRANS_CLIENT
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static XtransConnInfo
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TRANS(Os2OpenClient)(Xtransport *thistrans, char *protocol,
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char *host, char *port)
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{
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APIRET rc;
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HFILE hfd,hServer;
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ULONG action,byteWritten,State;
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char pipename[256],clientname[256];
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char server_string[256];
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struct sockaddr *addr_name;
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unsigned char pipe_len;
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XtransConnInfo ciptr;
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static int unique_id=0;
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int i,namelen,try;
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PRMSG(2,"Os2OpenClient(%s,%s,%s)\n",protocol,host,port);
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/* test, whether the host is really local, i.e. either
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* "os2" or "local"
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*/
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if (strcmp(protocol,"os2") && strcmp(protocol,"local")) {
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PRMSG (1,
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"Os2OpenClient: Cannot connect to non-local host %s\n",
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host, 0, 0);
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return NULL;
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}
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/* make the pipename */
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if (port && *port ) {
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if( *port == '/' ) { /* A full pathname */
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(void) sprintf(pipename, "\\PIPE\\X\\%s,", port);
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} else {
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(void) sprintf(pipename, "%s%s", "\\PIPE\\X\\xf86.", port);
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}
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} else {
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(void) sprintf(pipename, "\\PIPE\\X\\xfree86"); }
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PRMSG(5, "Os2OpenClient: Creating pipe %s\n",pipename, 0,0 );
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/* make a connection entry */
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if( (ciptr=(XtransConnInfo)xcalloc(1,sizeof(struct _XtransConnInfo))) == NULL ) {
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PRMSG(1,"Os2OpenClient: calloc(1,%d) failed\n",
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sizeof(struct _XtransConnInfo),0,0 );
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return NULL;
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}
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/* open the pipe. Try ten times before giving up at 500ms intervals*/
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try = 0;
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do {
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rc = DosOpen(pipename,&hServer, &action, 0,
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FILE_NORMAL, FILE_OPEN,
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OPEN_ACCESS_WRITEONLY | OPEN_SHARE_DENYWRITE,
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(PEAOP2)NULL);
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if(rc == 0) break;
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if (try >=10) {
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PRMSG(1,"Os2OpenClient: Open server pipe %s failed, rc=%d\n",
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pipename,rc,0 );
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PRMSG(1,"\tProbable causes: either the XServer is not running, or has not started properly,\n",
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0,0,0 );
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PRMSG(1,"\tor the DISPLAY variable is set incorrectly.\n",
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0,0,0 );
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xfree(ciptr);
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return NULL;
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}
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try ++;
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DosSleep(500);
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} while (rc != 0);
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/* OK, now we are talking to the server. Generate a unique pipe name and pass it to
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* the server. Make the pipe and wait for server to connect */
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sprintf(clientname,"\\PIPE\\X\\%d.%d",getpid(),unique_id++);
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rc = DosCreateNPipe (clientname, &hfd,
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NP_NOINHERIT | NP_ACCESS_DUPLEX,
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1 | NP_NOWAIT | NP_TYPE_BYTE | NP_READMODE_BYTE,
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16384, 16384, 0);
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if (rc != 0){
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PRMSG(1, "Os2OpenClient: Unable to create pipe %s\n", pipename,0,0 );
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DosClose(hfd);
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pipe_len=0;
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DosWrite(hServer,&pipe_len,1,&byteWritten);
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DosClose(hServer);
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xfree(ciptr);
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return(NULL);
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}
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/* Connect to the pipe. */
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rc = DosConnectNPipe (hfd);
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if (rc != 0 && rc != ERROR_PIPE_NOT_CONNECTED)
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{
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PRMSG(1, "Os2OpenClient: Unable to connect to pipe %s\n", pipename,0,0 );
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DosClose (hfd);
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DosClose(hServer);
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xfree(ciptr);
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return (NULL);
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}
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/* Now write name to server on hServer */
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server_string[0]=(char) strlen(clientname)+1;
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strcpy(&server_string[1],clientname);
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rc = DosWrite(hServer,server_string,(ULONG)server_string[0]+1,&byteWritten);
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if(rc != 0){ /* Could not write to server pipe? */
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PRMSG(1, "Os2OpenClient: Error writing to server pipe, handle=%d, rc=%d, w=%d\n",
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hServer,rc,byteWritten );
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DosClose(hServer);
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DosClose(hfd);
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xfree(ciptr);
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return(NULL);
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}
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PRMSG (5, "Os2OpenCLient: Wrote pipename %s to server; len %d written %d \n",
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&server_string[1],server_string[0]+1,byteWritten);
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/* The server will respond by opening the pipe. Wait for that for 30 secs */
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i=0;
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DosSleep(50); /* Give it time to catch up but minimize race condition*/
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rc = DosConnectNPipe(hfd);
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while((rc == ERROR_PIPE_NOT_CONNECTED)&&(i++<60)) {
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DosSleep(500);
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rc = DosConnectNPipe(hfd);
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}
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if(rc != 0){ /* Server has not responded! */
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PRMSG(1, "Os2OpenClient: Timeout on wait for server response, handle=%d, rc=%d\n",hServer,rc,0 );
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PRMSG(1, "\tProbable cause: the XServer has exited or crashed while the connection was being established\n",0,0,0 );
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PRMSG(1, "\tor the XServer is too busy to respond.\n",0,0,0 );
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DosClose(hServer);
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DosClose(hfd);
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xfree(ciptr);
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return(NULL);
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}
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/* OK, the server has connected! Fill-in the info and return */
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DosClose(hServer);
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/* Last check: make sure client is connected! */
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rc = DosQueryNPHState(hfd,&State);
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if(rc != 0){ /* Client is not connected! */
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PRMSG(1, "Os2OpenClient: Client pipe does not appear connected. rc=%d, h=%d\n",rc,hfd,0 );
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PRMSG(1, "\tProbable cause: the XServer has just exited.\n",0,0,0 );
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DosClose(hfd);
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xfree(ciptr);
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return(NULL);
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}
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namelen=sizeof(struct sockaddr);
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if ((ciptr->addr = (char *) xalloc (namelen)) == NULL)
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{
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PRMSG (1, "Os2OpenClient: Can't allocate space for the addr\n",
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0, 0, 0);
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DosClose(hfd);
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xfree(ciptr);
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return(NULL);
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}
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ciptr->addrlen = namelen;
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((struct sockaddr *)ciptr->addr)->sa_family = AF_UNIX;
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strcpy(((struct sockaddr *)ciptr->addr)->sa_data, "local");
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if ((ciptr->peeraddr = (char *) xalloc (namelen)) == NULL)
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{
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PRMSG (1, "Os2OpenCLient: Can't allocate space for the addr\n",
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0, 0, 0);
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DosClose(hfd);
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xfree(ciptr->addr);
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xfree(ciptr);
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return(NULL);
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}
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ciptr->peeraddrlen = namelen;
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((struct sockaddr *)ciptr->peeraddr)->sa_family = AF_UNIX;
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strcpy (((struct sockaddr *)ciptr->peeraddr)->sa_data,"local");
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PRMSG (5, "Os2OpenCLient: Filled in struct: len %d %d name %s\n",
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ciptr->addrlen,ciptr->peeraddrlen,((struct sockaddr *)ciptr->peeraddr)->sa_data);
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ciptr->index=hfd;
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ciptr->family=AF_UNIX;
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if((ciptr->fd=_imphandle(hfd))<0){
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PRMSG(1, "Os2OpenClient: Could not import the pipe handle into EMX\n",0,0,0 );
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PRMSG(1, "\tProbable cause: EMX has run out of free file handles.\n",0,0,0 );
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DosClose(hfd);
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xfree(ciptr->addr);
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xfree(ciptr->peeraddr);
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xfree(ciptr);
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return(NULL);
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}
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PRMSG(5, "Os2OpenClient: pipe handle %d EMX handle %d\n",ciptr->index,ciptr->fd,0 );
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fcntl(ciptr->fd,F_SETFL,O_NDELAY);
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fcntl(ciptr->fd,F_SETFD,FD_CLOEXEC);
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return ciptr;
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}
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#endif /* TRANS_CLIENT */
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#ifdef TRANS_SERVER
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static XtransConnInfo
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TRANS(Os2OpenServer)(Xtransport *thistrans, char *protocol,
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char *host, char *port)
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{
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APIRET rc;
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HFILE hfd;
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ULONG action;
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char pipename[256];
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struct sockaddr *addr_name;
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XtransConnInfo ciptr;
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int namelen;
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#ifdef XSERV_t
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if (! init_server_pipes()) return(NULL);
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#endif
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PRMSG(2,"Os2OpenServer(%s,%s,%s)\n",protocol,host,port);
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if( (ciptr=(XtransConnInfo)xcalloc(1,sizeof(struct _XtransConnInfo))) == NULL )
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{
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PRMSG(1,"Os2OpenServer: xcalloc(1,%d) failed\n",
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sizeof(struct _XtransConnInfo),0,0 );
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return NULL;
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}
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if (port && *port ) {
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if( *port == '/' ) { /* A full pathname */
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(void) sprintf(pipename, "\\PIPE\\X\\%s", port);
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} else {
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(void) sprintf(pipename, "%s%s", "\\PIPE\\X\\xf86.", port);
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}
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} else {
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(void) sprintf(pipename, "\\PIPE\\X\\xfree86");
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}
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PRMSG(5, "Os2OpenServer: Creating pipe %s\n",pipename, 0,0 );
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rc = DosCreateNPipe (pipename, &hfd,
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NP_NOINHERIT | NP_ACCESS_INBOUND,
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1 | NP_NOWAIT | NP_TYPE_BYTE | NP_READMODE_BYTE,
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0, 8192, 0);
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if (rc != 0){
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PRMSG(1, "Os2OpenServer: Unable to create pipe %s, rc=%d\n", pipename,rc,0 );
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PRMSG(1, "\tProbable cause: there is already another XServer running on display :%s\n",port,0,0 );
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DosClose(hfd);
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xfree(ciptr);
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return(NULL);
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}
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/* Connect to the pipe. */
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rc = DosConnectNPipe (hfd);
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if (rc != 0 && rc != ERROR_PIPE_NOT_CONNECTED)
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{
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PRMSG(1, "Os2OpenServer: Unable to connect to pipe %s\n", pipename,0,0 );
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DosClose (hfd);
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xfree(ciptr);
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return (NULL);
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}
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/* Pipe is now connected and waiting for client connect */
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/*** Put in info ***/
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namelen=sizeof(struct sockaddr);
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if ((ciptr->addr = (char *) xalloc (namelen)) == NULL)
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{
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PRMSG (1, "Os2OpenServer: Can't allocate space for the addr\n",
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0, 0, 0);
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DosClose(hfd);
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xfree(ciptr);
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return(NULL);
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}
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ciptr->addrlen = namelen;
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((struct sockaddr *)ciptr->addr)->sa_family = AF_UNIX;
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strcpy (((struct sockaddr *)ciptr->addr)->sa_data, "local");
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if ((ciptr->peeraddr = (char *) xalloc (namelen)) == NULL)
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{
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PRMSG (1, "Os2OpenServer: Can't allocate space for the addr\n",
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0, 0, 0);
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DosClose(hfd);
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xfree(ciptr->addr);
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xfree(ciptr);
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return(NULL);
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}
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ciptr->peeraddrlen = namelen;
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((struct sockaddr *)ciptr->peeraddr)->sa_family = AF_UNIX;
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strcpy(((struct sockaddr *)ciptr->peeraddr)->sa_data,"local");
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PRMSG (5, "Os2OpenServer: Filled in struct: len %d %d name %s\n",
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ciptr->addrlen,ciptr->peeraddrlen,((struct sockaddr *)ciptr->peeraddr)->sa_data);
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ciptr->index=hfd; /* Save this for later use in this unused member of struct */
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ciptr->flags=1; /* Listener */
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ciptr->family=AF_UNIX;
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if((ciptr->fd=_imphandle(hfd))<0){
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DosClose(hfd);
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xfree(ciptr->addr);
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xfree(ciptr->peeraddr);
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xfree(ciptr);
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return(NULL);
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}
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PRMSG(5, "Os2OpenServer: Pipe handle %d EMX handle %d",ciptr->index,ciptr->fd,0 );
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#ifdef XSERV_t
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/* Attach the pipe sem to the pipe. Use handle index as key */
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rc = DosSetNPipeSem(ciptr->fd, (HSEM)hPipeSem, ciptr->fd);
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if (rc){
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PRMSG(1, "Os2OpenCOTSServer: Could not attach sem %d to pipe %d, rc=%d\n",
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hPipeSem,ciptr->fd,rc);
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DosClose(ciptr->fd);
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xfree(ciptr->addr);
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xfree(ciptr->peeraddr);
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xfree(ciptr);
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return(NULL);
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}
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#endif
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fcntl(ciptr->fd,F_SETFL,O_NDELAY);
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fcntl(ciptr->fd,F_SETFD,FD_CLOEXEC);
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return(ciptr);
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}
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#endif /* TRANS_SERVER */
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#ifdef TRANS_CLIENT
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static XtransConnInfo
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TRANS(Os2OpenCLTSClient)(Xtransport *thistrans, char *protocol,
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char *host, char *port)
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{
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PRMSG(2,"Os2OpenCLTSClient(%s,%s,%s)\n",protocol,host,port);
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return TRANS(Os2OpenClient)(thistrans, protocol, host, port);
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}
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#endif /* TRANS_CLIENT */
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#ifdef TRANS_CLIENT
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static XtransConnInfo
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TRANS(Os2OpenCOTSClient)(Xtransport *thistrans, char *protocol,
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char *host, char *port)
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{
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PRMSG(2,"Os2OpenCOTSClient(%s,%s,%s)\n",protocol,host,port);
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return TRANS(Os2OpenClient)(thistrans, protocol, host, port);
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}
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#endif /* TRANS_CLIENT */
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#ifdef TRANS_SERVER
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static XtransConnInfo
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TRANS(Os2OpenCLTSServer)(Xtransport *thistrans, char *protocol,
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char *host, char *port)
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{
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PRMSG(2,"Os2OpenCLTSServer(%s,%s,%s)\n",protocol,host,port);
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return TRANS(Os2OpenServer)(thistrans, protocol, host, port);
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}
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#endif /* TRANS_SERVER */
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#ifdef TRANS_SERVER
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static XtransConnInfo
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TRANS(Os2OpenCOTSServer)(Xtransport *thistrans, char *protocol,
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char *host, char *port)
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{
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PRMSG(2,"Os2OpenCOTSServer(%s,%s,%s)\n",protocol,host,port);
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return TRANS(Os2OpenServer)(thistrans, protocol, host, port);
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}
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#endif /* TRANS_SERVER */
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#ifdef TRANS_REOPEN
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static XtransConnInfo
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TRANS(Os2ReopenCOTSServer)(Xtransport *thistrans, int fd, char *port)
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{
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XtransConnInfo ciptr;
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char addr_name[256];
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int namelen;
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PRMSG(2,"Os2ReopenCOTSServer(%d,%s)\n", fd, port, 0);
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if( (ciptr=(XtransConnInfo)xcalloc(1,sizeof(struct _XtransConnInfo))) == NULL )
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{
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PRMSG(1,"Os2ReopenCOTSServer: xcalloc(1,%d) failed\n",
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sizeof(struct _XtransConnInfo),0,0 );
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return NULL;
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}
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strcpy(addr_name,"local");
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namelen=sizeof(addr_name);
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if ((ciptr->addr = (char *) xalloc (namelen)) == NULL)
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{
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PRMSG (1, "Os2ReopenCOTSServer: Can't allocate space for the addr\n",
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0, 0, 0);
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xfree(ciptr);
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return(NULL);
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}
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ciptr->addrlen = namelen;
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memcpy (ciptr->addr, addr_name, ciptr->addrlen);
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if ((ciptr->peeraddr = (char *) xalloc (namelen)) == NULL)
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{
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PRMSG (1, "Os2ReopenCOTSServer: Can't allocate space for the addr\n",
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0, 0, 0);
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xfree(ciptr);
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return(NULL);
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}
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ciptr->peeraddrlen = namelen;
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memcpy (ciptr->peeraddr,addr_name, ciptr->addrlen);
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ciptr->fd = fd;
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ciptr->family=AF_UNIX;
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ciptr->flags=1;
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PRMSG(1,"Os2ReopenCOTSServer: Filled-in info for handle %d on port %s.\n", fd, port, 0);
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return(ciptr);
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}
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static XtransConnInfo
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TRANS(Os2ReopenCLTSServer)(Xtransport *thistrans, int fd, char *port)
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{
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PRMSG(2,"Os2ReopenCLTSServer(%d,%s)\n", fd, port, 0);
|
|
return TRANS(Os2ReopenCOTSServer)(thistrans, fd, port);
|
|
}
|
|
#endif
|
|
|
|
static
|
|
TRANS(Os2SetOption)(XtransConnInfo ciptr, int option, int arg)
|
|
{
|
|
PRMSG(2,"Os2SetOption(%d,%d,%d)\n",ciptr->fd,option,arg);
|
|
return -1;
|
|
}
|
|
|
|
#ifdef TRANS_SERVER
|
|
|
|
static
|
|
TRANS(Os2CreateListener)(XtransConnInfo ciptr, char *port, unsigned int flags)
|
|
{
|
|
PRMSG(2,"Os2CreateListener(%x->%d,%s)\n",ciptr,ciptr->fd,port);
|
|
return 0;
|
|
}
|
|
|
|
static XtransConnInfo
|
|
TRANS(Os2Accept)(XtransConnInfo ciptr, int *status)
|
|
{
|
|
XtransConnInfo newciptr;
|
|
HFILE hClient;
|
|
unsigned char length;
|
|
ULONG action;
|
|
char clientname[256];
|
|
struct sockaddr *addr_name;
|
|
int in,namelen;
|
|
APIRET rc;
|
|
|
|
|
|
PRMSG(2,"Os2Accept(%x->%d)\n", ciptr, ciptr->fd,0);
|
|
if( (newciptr=(XtransConnInfo)xcalloc(1,sizeof(struct _XtransConnInfo)))==NULL )
|
|
{
|
|
PRMSG(1,"Os2Accept: xcalloc(1,%d) failed\n",
|
|
sizeof(struct _XtransConnInfo),0,0 );
|
|
*status = TRANS_ACCEPT_BAD_MALLOC;
|
|
return NULL;
|
|
}
|
|
|
|
/* Read in length of client pipe name. If fails, then reset server pipe */
|
|
if((in=read(ciptr->fd,&length,1))<=0){
|
|
PRMSG(2,"Os2Accept: Error reading incoming connection, in=%d, error=%d\n",
|
|
in,errno,0 );
|
|
*status = TRANS_ACCEPT_MISC_ERROR;
|
|
xfree(newciptr);
|
|
rc = DosDisConnectNPipe(ciptr->fd);
|
|
rc = DosConnectNPipe (ciptr->fd);
|
|
if (rc != 0 && rc != ERROR_PIPE_NOT_CONNECTED)
|
|
{
|
|
PRMSG(1, "Os2Accept: Unable to reconnect server pipe %d\n", ciptr->fd,0,0 );
|
|
}
|
|
return NULL;
|
|
}
|
|
PRMSG(5, "Os2Accept: Bytes to read for name: %d\n",length,0,0 );
|
|
|
|
|
|
/* Check length for valid length ?? */
|
|
|
|
/* Now read in length bytes from pipe for client pipe name */
|
|
if((in=read(ciptr->fd,clientname,length))<=0){
|
|
PRMSG(2,"Os2Accept: Error reading incoming connection, in=%d, error=%d\n",
|
|
in,errno,0 );
|
|
*status = TRANS_ACCEPT_MISC_ERROR;
|
|
xfree(newciptr);
|
|
rc = DosDisConnectNPipe(ciptr->fd);
|
|
rc = DosConnectNPipe (ciptr->fd);
|
|
if (rc != 0 && rc != ERROR_PIPE_NOT_CONNECTED)
|
|
{
|
|
PRMSG(1, "Os2Accept: Unable to reconnect server pipe %d\n", ciptr->fd,0,0 );
|
|
}
|
|
return NULL;
|
|
}
|
|
clientname[length]='\0';
|
|
PRMSG(5, "Os2Accept: Server name %s length %d\n",clientname,length,0 );
|
|
|
|
|
|
/* Now we have the client pipe name. Open it with DosOpen */
|
|
|
|
rc = DosOpen(clientname,&hClient, &action, 0,
|
|
FILE_NORMAL, FILE_OPEN,
|
|
OPEN_FLAGS_NOINHERIT | OPEN_ACCESS_READWRITE | OPEN_SHARE_DENYREADWRITE,
|
|
(PEAOP2)NULL);
|
|
|
|
PRMSG(5, "Os2Accept: Open pipe %s, handle = %d, rc=%d\n",clientname,hClient,rc );
|
|
|
|
if (rc) {
|
|
PRMSG(1,"Os2Accept: Open pipe %s to client failed, rc=%d\n",
|
|
clientname,rc,0 );
|
|
PRMSG(1, "\tProbable cause: the client has exited or timed-out.\n",0,0,0 );
|
|
xfree(newciptr);
|
|
rc = DosDisConnectNPipe(ciptr->fd);
|
|
rc = DosConnectNPipe (ciptr->fd);
|
|
if (rc != 0 && rc != ERROR_PIPE_NOT_CONNECTED)
|
|
{
|
|
PRMSG(1, "Os2Accept: Unable to reconnect server pipe %d\n", ciptr->fd,0,0 );
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
rc = DosSetNPHState (hClient, NP_NOWAIT | NP_READMODE_BYTE);
|
|
if (rc != 0)
|
|
{
|
|
PRMSG(1,"Os2Accept: Could not set pipe %s to non-blocking mode, rc=%d\n",
|
|
hClient,rc,0 );
|
|
xfree(newciptr);
|
|
rc = DosDisConnectNPipe(ciptr->fd);
|
|
rc = DosConnectNPipe (ciptr->fd);
|
|
if (rc != 0 && rc != ERROR_PIPE_NOT_CONNECTED)
|
|
{
|
|
PRMSG(1, "Os2Accept: Unable to reconnect server pipe %d\n", ciptr->fd,0,0 );
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/* OK, we seem to be well connected to client. Now disconnect server pipe and put again in listen */
|
|
|
|
rc = DosDisConnectNPipe(ciptr->fd);
|
|
rc = DosConnectNPipe (ciptr->fd);
|
|
PRMSG(5, "Os2Accept: Reconnecting server pipe %d, rc = %d\n",ciptr->fd,rc,0 );
|
|
|
|
if (rc != 0 && rc != ERROR_PIPE_NOT_CONNECTED)
|
|
{
|
|
PRMSG(1, "Os2Accept: Unable to reconnect server pipe %d\n", ciptr->fd,0,0 );
|
|
} /* Consider this non-fatal for present connection */
|
|
|
|
/* And finally fill-in info in newciptr */
|
|
|
|
namelen=sizeof(struct sockaddr);
|
|
if ((newciptr->addr = (char *) xalloc (namelen)) == NULL)
|
|
{
|
|
PRMSG (1, "Os2Accept: Can't allocate space for the addr\n",
|
|
0, 0, 0);
|
|
DosClose(hClient);
|
|
xfree(newciptr);
|
|
return(NULL);
|
|
}
|
|
|
|
newciptr->addrlen = namelen;
|
|
((struct sockaddr *)newciptr->addr)->sa_family = AF_UNIX;
|
|
strcpy (((struct sockaddr *)newciptr->addr)->sa_data, "local");
|
|
|
|
if ((newciptr->peeraddr = (char *) xalloc (namelen)) == NULL)
|
|
{
|
|
PRMSG (1, "Os2Accept: Can't allocate space for the addr\n",
|
|
0, 0, 0);
|
|
DosClose(hClient);
|
|
xfree(ciptr->addr);
|
|
xfree(newciptr);
|
|
return(NULL);
|
|
}
|
|
|
|
newciptr->peeraddrlen = namelen;
|
|
((struct sockaddr *)newciptr->peeraddr)->sa_family = AF_UNIX;
|
|
strcpy (((struct sockaddr *)newciptr->peeraddr)->sa_data, "local");
|
|
|
|
PRMSG (5, "Os2Accept: Filled in struct: len %d %d name %s\n",
|
|
newciptr->addrlen,newciptr->peeraddrlen,newciptr->peeraddr);
|
|
|
|
|
|
newciptr->index=hClient;
|
|
newciptr->family=AF_UNIX;
|
|
if((newciptr->fd=_imphandle(hClient))<0){
|
|
PRMSG(1,"Os2Accept: Could not import pipe %d into EMX, errno=%d\n",
|
|
hClient,errno,0 );
|
|
PRMSG(1, "\tProbable cause: EMX has run out of file handles.\n",0,0,0 );
|
|
DosClose(hClient);
|
|
xfree(newciptr->addr);
|
|
xfree(newciptr->peeraddr);
|
|
xfree(newciptr);
|
|
return(NULL);
|
|
}
|
|
PRMSG(5, "Os2Accept: Pipe handle %d EMX handle %d",newciptr->index,newciptr->fd,0 );
|
|
|
|
#ifdef XSERV_t
|
|
/* Attach the pipe sem to the pipe. Use handle index as key */
|
|
rc = DosSetNPipeSem(newciptr->fd, (HSEM)hPipeSem, newciptr->fd);
|
|
if (rc){
|
|
PRMSG(1, "Os2OpenCOTSServer: Could not attach sem %d to pipe %d, rc=%d\n",
|
|
hPipeSem,newciptr->fd,rc);
|
|
DosClose(newciptr->fd);
|
|
xfree(newciptr->addr);
|
|
xfree(newciptr->peeraddr);
|
|
xfree(newciptr);
|
|
return(NULL);
|
|
}
|
|
#endif
|
|
|
|
fcntl(ciptr->fd,F_SETFL,O_NDELAY);
|
|
fcntl(ciptr->fd,F_SETFD,FD_CLOEXEC);
|
|
*status=0;
|
|
return newciptr;
|
|
}
|
|
|
|
#endif /* TRANS_SERVER */
|
|
|
|
#ifdef TRANS_CLIENT
|
|
|
|
static
|
|
TRANS(Os2Connect)(XtransConnInfo ciptr, char *host, char *port)
|
|
{
|
|
PRMSG(2,"Os2Connect(%x->%d,%s)\n", ciptr, ciptr->fd, port);
|
|
return 0;
|
|
}
|
|
|
|
#endif /* TRANS_CLIENT */
|
|
|
|
static int
|
|
TRANS(Os2BytesReadable)(XtransConnInfo ciptr, BytesReadable_t *pend )
|
|
{
|
|
ULONG rc, state, nread;
|
|
AVAILDATA avail;
|
|
char buffer;
|
|
|
|
PRMSG(2,"Os2BytesReadable(%x->%d,%x)\n", ciptr, ciptr->fd, pend);
|
|
|
|
rc = DosPeekNPipe (ciptr->fd, &buffer, 0, &nread, &avail, &state);
|
|
if (rc != 0)
|
|
{
|
|
errno = EPIPE;
|
|
*pend = 0;
|
|
return -1;
|
|
}
|
|
if (state == NP_STATE_CLOSING)
|
|
{
|
|
errno = EPIPE;
|
|
*pend = 0;
|
|
return -1;
|
|
}
|
|
errno = 0;
|
|
*pend = avail.cbpipe;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
TRANS(Os2Read)(XtransConnInfo ciptr, char *buf, int size)
|
|
{
|
|
int ret;
|
|
APIRET rc;
|
|
ULONG ulRead;
|
|
PRMSG(2,"Os2Read(%d,%x,%d)\n", ciptr->fd, buf, size );
|
|
errno = 0;
|
|
rc = DosRead(ciptr->fd, buf, size, &ulRead);
|
|
if (rc == 0){
|
|
ret = ulRead;
|
|
}
|
|
else if ((rc == 232) || (rc == 231)){
|
|
errno = EAGAIN;
|
|
ret = -1;
|
|
}
|
|
else if (rc == 6){
|
|
errno = EBADF;
|
|
ret = -1;
|
|
}
|
|
else if ((rc == 109) || (rc == 230) || (rc == 233)){
|
|
errno = EPIPE;
|
|
ret = -1;
|
|
}
|
|
else {
|
|
PRMSG(2,"Os2Read: Unknown return code from DosRead, fd %d rc=%d\n", ciptr->fd,rc,0 );
|
|
errno = EINVAL;
|
|
ret = -1;
|
|
}
|
|
return (ret);
|
|
}
|
|
|
|
static int
|
|
TRANS(Os2Write)(XtransConnInfo ciptr, char *buf, int size)
|
|
{
|
|
int ret;
|
|
APIRET rc;
|
|
ULONG nWritten;
|
|
PRMSG(2,"Os2Write(%d,%x,%d)\n", ciptr->fd, buf, size );
|
|
rc = DosWrite(ciptr->fd, buf, size, &nWritten);
|
|
if (rc == 0){
|
|
ret = nWritten;
|
|
if(nWritten == 0) {
|
|
errno=EAGAIN;
|
|
ret = -1;
|
|
}
|
|
}
|
|
else if ((rc == 39) || (rc == 112)){
|
|
errno = EAGAIN;
|
|
ret = -1;
|
|
}
|
|
else if ((rc == 109) || (rc == 230) || (rc == 233)){
|
|
errno = EPIPE;
|
|
ret = -1;
|
|
}
|
|
else if (rc == 6){
|
|
errno=EBADF;
|
|
ret = -1;
|
|
}
|
|
else {
|
|
PRMSG(2,"(Os2Write)Unknown return code from DosWrite, fd %d rc=%d\n", ciptr->fd,rc,0 );
|
|
errno = EINVAL;
|
|
ret = -1;
|
|
}
|
|
return (ret);
|
|
}
|
|
|
|
static int
|
|
TRANS(Os2Readv)(XtransConnInfo ciptr, struct iovec *buf, int size)
|
|
{
|
|
int ret;
|
|
PRMSG(2,"Os2Readv(%d,%x,%d)\n", ciptr->fd, buf, size );
|
|
ret = READV(ciptr,buf,size);
|
|
if ((ret <0) && (errno == EINVAL)) errno = EPIPE;
|
|
return (ret);
|
|
}
|
|
|
|
static int
|
|
TRANS(Os2Writev)(XtransConnInfo ciptr, struct iovec *buf, int size)
|
|
{
|
|
int ret;
|
|
PRMSG(2,"Os2Writev(%d,%x,%d)\n", ciptr->fd, buf, size );
|
|
ret = WRITEV(ciptr,buf,size);
|
|
if ((ret <0) && (errno == EINVAL)) errno = EPIPE;
|
|
if ((ret <0) && (errno == ENOSPC)) errno = EAGAIN;
|
|
return (ret);
|
|
}
|
|
|
|
static int
|
|
TRANS(Os2Disconnect)(XtransConnInfo ciptr)
|
|
{
|
|
PRMSG(2,"Os2Disconnect(%x->%d)\n", ciptr, ciptr->fd, 0);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
TRANS(Os2Close)(XtransConnInfo ciptr)
|
|
{
|
|
int ret;
|
|
PRMSG(2,"Os2Close(%x->%d)\n", ciptr, ciptr->fd ,0);
|
|
ret=close(ciptr->fd);
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
TRANS(Os2CloseForCloning)(XtransConnInfo ciptr)
|
|
{
|
|
int ret;
|
|
|
|
PRMSG(2,"Os2CloseForCloning(%x->%d)\n", ciptr, ciptr->fd ,0);
|
|
ret=close(ciptr->fd);
|
|
return ret;
|
|
}
|
|
|
|
|
|
Xtransport TRANS(OS2LocalFuncs) = {
|
|
/* Local Interface */
|
|
"local",
|
|
TRANS_LOCAL,
|
|
#ifdef TRANS_CLIENT
|
|
TRANS(Os2OpenCOTSClient),
|
|
#endif /* TRANS_CLIENT */
|
|
#ifdef TRANS_SERVER
|
|
NULL,
|
|
TRANS(Os2OpenCOTSServer),
|
|
#endif /* TRANS_SERVER */
|
|
#ifdef TRANS_CLIENT
|
|
TRANS(Os2OpenCLTSClient),
|
|
#endif /* TRANS_CLIENT */
|
|
#ifdef TRANS_SERVER
|
|
TRANS(Os2OpenCLTSServer),
|
|
#endif /* TRANS_SERVER */
|
|
#ifdef TRANS_REOPEN
|
|
TRANS(Os2ReopenCOTSServer),
|
|
TRANS(Os2ReopenCLTSServer),
|
|
#endif
|
|
TRANS(Os2SetOption),
|
|
#ifdef TRANS_SERVER
|
|
TRANS(Os2CreateListener),
|
|
NULL, /* ResetListener */
|
|
TRANS(Os2Accept),
|
|
#endif /* TRANS_SERVER */
|
|
#ifdef TRANS_CLIENT
|
|
TRANS(Os2Connect),
|
|
#endif /* TRANS_CLIENT */
|
|
TRANS(Os2BytesReadable),
|
|
TRANS(Os2Read),
|
|
TRANS(Os2Write),
|
|
TRANS(Os2Readv),
|
|
TRANS(Os2Writev),
|
|
TRANS(Os2Disconnect),
|
|
TRANS(Os2Close),
|
|
TRANS(Os2CloseForCloning),
|
|
};
|
|
|
|
#ifdef XSERV_t
|
|
/* This function is used in the server to initialize the semaphore used with pipes */
|
|
|
|
BOOL init_server_pipes()
|
|
{
|
|
static BOOL first_time=TRUE;
|
|
ULONG rc;
|
|
|
|
if(first_time){
|
|
rc = DosCreateEventSem(NULL, &hPipeSem,DC_SEM_SHARED,FALSE);
|
|
if (rc){
|
|
PRMSG(1,"Os2OpenListener (init_server_pipes): Could not create pipe semaphore, rc=%d\n",
|
|
rc,0,0);
|
|
return(FALSE);
|
|
}
|
|
first_time=FALSE;
|
|
}
|
|
return(TRUE);
|
|
}
|
|
#endif /* XSERV_t */
|