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DtTerm: Add pts driver support.

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Liang Chang 2021-04-20 08:46:54 +08:00 committed by Jon Trulson
parent 49adbfb25d
commit 82d4a8bb68
2 changed files with 108 additions and 0 deletions
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4
cde/lib/DtTerm/TermPrim/Imakefile
View file

@ -77,6 +77,9 @@ OBJS = \
#include <Library.tmpl>
#if defined(HasPtsDriver) && HasPtsDriver
LinkFile(TermPrimGetPty.c,TermPrimGetPty-pts.c)
#else
/* These should be cleaned up. Test SVR4Architecture? */
#ifdef AlphaArchitecture
LinkFile(TermPrimGetPty.c,TermPrimGetPty-bsd.c)
@ -105,6 +108,7 @@ LinkFile(TermPrimGetPty.c,TermPrimGetPty-svr4.c)
#ifdef BSDArchitecture
LinkFile(TermPrimGetPty.c,TermPrimGetPty-bsd.c)
#endif
#endif
SubdirLibraryRule($(OBJS))

104
cde/lib/DtTerm/TermPrim/TermPrimGetPty-pts.c Normal file
View file

@ -0,0 +1,104 @@
/*
* CDE - Common Desktop Environment
*
* Copyright (c) 1993-2012, The Open Group. All rights reserved.
*
* These libraries and programs are free software; you can
* redistribute them and/or modify them under the terms of the GNU
* Lesser General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* These libraries and programs are distributed in the hope that
* they will be useful, but WITHOUT ANY WARRANTY; without even the
* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with these libraries and programs; if not, write
* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
* Floor, Boston, MA 02110-1301 USA
*/
/* *
* (c) Copyright 1993, 1994 Hewlett-Packard Company *
* (c) Copyright 1993, 1994 International Business Machines Corp. *
* (c) Copyright 1993, 1994 Sun Microsystems, Inc. *
* (c) Copyright 1993, 1994 Novell, Inc. *
*/
#ifndef _XOPEN_SOURCE
#define _XOPEN_SOURCE 600
#endif
#include "TermPrim.h"
#include "TermPrimDebug.h"
#include "TermHeader.h"
#include <errno.h>
#include <fcntl.h>
#include <stdlib.h>
int
_DtTermPrimGetPty(char **ptySlave, char **ptyMaster)
{
char *c;
int ptyFd;
*ptyMaster = NULL;
if (isDebugFSet('p', 10)) {
#ifdef BBA
#pragma BBA_IGNORE
#endif /*BBA*/
return(-1);
}
if ((ptyFd = posix_openpt(O_RDWR)) >= 0) {
/* use grantpt to prevent other processes from grabbing the tty that
* goes with the pty master we have opened. It is a mandatory step
* in the SVR4 pty-tty initialization. Note that /dev must be
* mounted read/write...
*/
Debug('T', timeStamp("_DtTermPrimGetPty() calling grantpt()"));
if (grantpt(ptyFd) == -1) {
(void) perror("grantpt");
(void) close(ptyFd);
return(-1);
}
/* Unlock the pty master/slave pair so the slave can be opened later */
Debug('T', timeStamp("_DtTermPrimGetPty() calling unlockpt()"));
if (unlockpt(ptyFd) == -1) {
(void) perror("unlockpt");
(void) close(ptyFd);
return(-1);
}
Debug('T', timeStamp("_DtTermPrimGetPty() unlockpt() finished"));
/* get the pty slave name... */
if (c = ptsname(ptyFd)) {
*ptySlave = malloc(strlen(c) + 1);
(void) strcpy(*ptySlave, c);
return(ptyFd);
} else {
/* ptsname on the pty master failed. This should not happen!... */
(void) perror("ptsname");
(void) close(ptyFd);
}
} else {
(void) perror("posix_openpt");
}
return(-1);
}
/* dummy functions */
void _DtTermPrimReleasePty(char *ptySlave) {}
void _DtTermPrimPtyCleanup(void) {}
int
_DtTermPrimSetupPty(char *ptySlave, int ptyFd)
{
return(0);
}