mirror of
https://github.com/vim/vim.git
synced 2025-09-30 04:44:14 -04:00
updated for version 7.0001
This commit is contained in:
Bram Moolenaar
425
src/pty.c
Normal file
425
src/pty.c
Normal file
@@ -0,0 +1,425 @@
|
||||
/* vi:set ts=8 sts=4 sw=4:
|
||||
*
|
||||
* VIM - Vi IMproved by Bram Moolenaar
|
||||
*
|
||||
* Do ":help uganda" in Vim to read copying and usage conditions.
|
||||
* Do ":help credits" in Vim to see a list of people who contributed.
|
||||
* See README.txt for an overview of the Vim source code.
|
||||
*/
|
||||
/*
|
||||
* The stuff in this file mostly comes from the "screen" program.
|
||||
* Included with permission from Juergen Weigert.
|
||||
* Copied from "pty.c". "putenv.c" was used for putenv() in misc2.c.
|
||||
*
|
||||
* It has been modified to work better with Vim.
|
||||
* The parts that are not used in Vim have been deleted.
|
||||
* See the "screen" sources for the complete stuff.
|
||||
*/
|
||||
|
||||
/* Copyright (c) 1993
|
||||
* Juergen Weigert (jnweiger@immd4.informatik.uni-erlangen.de)
|
||||
* Michael Schroeder (mlschroe@immd4.informatik.uni-erlangen.de)
|
||||
* Copyright (c) 1987 Oliver Laumann
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2, or (at your option)
|
||||
* any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program (see the file COPYING); if not, write to the
|
||||
* Free Software Foundation, Inc.,
|
||||
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
|
||||
*/
|
||||
|
||||
/* RCS_ID("$Id$ FAU") */
|
||||
|
||||
#include "vim.h"
|
||||
|
||||
#ifdef HAVE_FCNTL_H
|
||||
# include <fcntl.h>
|
||||
#endif
|
||||
|
||||
#include <signal.h>
|
||||
|
||||
#ifdef __CYGWIN32__
|
||||
# include <sys/termios.h>
|
||||
#endif
|
||||
|
||||
#if HAVE_SYS_IOCTL_H
|
||||
# include <sys/ioctl.h>
|
||||
#endif
|
||||
|
||||
#if HAVE_STROPTS_H
|
||||
#include <sys/types.h>
|
||||
#ifdef sinix
|
||||
#define buf_T __system_buf_t__
|
||||
#endif
|
||||
#include <stropts.h>
|
||||
#ifdef sinix
|
||||
#undef buf_T
|
||||
#endif
|
||||
# ifdef sun
|
||||
# include <sys/conf.h>
|
||||
# endif
|
||||
#endif
|
||||
|
||||
#if HAVE_UNISTD_H
|
||||
# include <unistd.h>
|
||||
#endif
|
||||
|
||||
#if HAVE_TERMIO_H
|
||||
# include <termio.h>
|
||||
#else
|
||||
# if HAVE_TERMIOS_H
|
||||
# include <termios.h>
|
||||
# endif
|
||||
#endif
|
||||
|
||||
#if HAVE_SYS_STREAM_H
|
||||
# include <sys/stream.h>
|
||||
#endif
|
||||
|
||||
#if HAVE_SYS_PTEM_H
|
||||
# include <sys/ptem.h>
|
||||
#endif
|
||||
|
||||
#if !defined(sun) && !defined(VMS) && !defined(MACOS)
|
||||
# include <sys/ioctl.h>
|
||||
#endif
|
||||
|
||||
#if defined(sun) && defined(LOCKPTY) && !defined(TIOCEXCL)
|
||||
# include <sys/ttold.h>
|
||||
#endif
|
||||
|
||||
#ifdef ISC
|
||||
# include <sys/tty.h>
|
||||
# include <sys/sioctl.h>
|
||||
# include <sys/pty.h>
|
||||
#endif
|
||||
|
||||
#ifdef sgi
|
||||
# include <sys/sysmacros.h>
|
||||
#endif
|
||||
|
||||
#if defined(_INCLUDE_HPUX_SOURCE) && !defined(hpux)
|
||||
# define hpux
|
||||
#endif
|
||||
|
||||
/*
|
||||
* if no PTYRANGE[01] is in the config file, we pick a default
|
||||
*/
|
||||
#ifndef PTYRANGE0
|
||||
# define PTYRANGE0 "qprs"
|
||||
#endif
|
||||
#ifndef PTYRANGE1
|
||||
# define PTYRANGE1 "0123456789abcdef"
|
||||
#endif
|
||||
|
||||
/* SVR4 pseudo ttys don't seem to work with SCO-5 */
|
||||
#ifdef M_UNIX
|
||||
# undef HAVE_SVR4_PTYS
|
||||
#endif
|
||||
|
||||
static void initmaster __ARGS((int));
|
||||
|
||||
/*
|
||||
* Open all ptys with O_NOCTTY, just to be on the safe side
|
||||
* (RISCos mips breaks otherwise)
|
||||
*/
|
||||
#ifndef O_NOCTTY
|
||||
# define O_NOCTTY 0
|
||||
#endif
|
||||
|
||||
static void
|
||||
initmaster(f)
|
||||
int f;
|
||||
{
|
||||
#ifndef VMS
|
||||
# ifdef POSIX
|
||||
tcflush(f, TCIOFLUSH);
|
||||
# else
|
||||
# ifdef TIOCFLUSH
|
||||
(void)ioctl(f, TIOCFLUSH, (char *) 0);
|
||||
# endif
|
||||
# endif
|
||||
# ifdef LOCKPTY
|
||||
(void)ioctl(f, TIOCEXCL, (char *) 0);
|
||||
# endif
|
||||
#endif
|
||||
}
|
||||
|
||||
/*
|
||||
* This causes a hang on some systems, but is required for a properly working
|
||||
* pty on others. Needs to be tuned...
|
||||
*/
|
||||
int
|
||||
SetupSlavePTY(fd)
|
||||
int fd;
|
||||
{
|
||||
if (fd < 0)
|
||||
return 0;
|
||||
#if defined(I_PUSH) && defined(HAVE_SVR4_PTYS) && !defined(sgi) && !defined(linux) && !defined(__osf__) && !defined(M_UNIX)
|
||||
# if defined(HAVE_SYS_PTEM_H) || defined(hpux)
|
||||
if (ioctl(fd, I_PUSH, "ptem") != 0)
|
||||
return -1;
|
||||
# endif
|
||||
if (ioctl(fd, I_PUSH, "ldterm") != 0)
|
||||
return -1;
|
||||
# ifdef sun
|
||||
if (ioctl(fd, I_PUSH, "ttcompat") != 0)
|
||||
return -1;
|
||||
# endif
|
||||
#endif
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
#if defined(OSX) && !defined(PTY_DONE)
|
||||
#define PTY_DONE
|
||||
int
|
||||
OpenPTY(ttyn)
|
||||
char **ttyn;
|
||||
{
|
||||
int f;
|
||||
static char TtyName[32];
|
||||
|
||||
if ((f = open_controlling_pty(TtyName)) < 0)
|
||||
return -1;
|
||||
initmaster(f);
|
||||
*ttyn = TtyName;
|
||||
return f;
|
||||
}
|
||||
#endif
|
||||
|
||||
#if (defined(sequent) || defined(_SEQUENT_)) && defined(HAVE_GETPSEUDOTTY) \
|
||||
&& !defined(PTY_DONE)
|
||||
#define PTY_DONE
|
||||
int
|
||||
OpenPTY(ttyn)
|
||||
char **ttyn;
|
||||
{
|
||||
char *m, *s;
|
||||
int f;
|
||||
/* used for opening a new pty-pair: */
|
||||
static char PtyName[32];
|
||||
static char TtyName[32];
|
||||
|
||||
if ((f = getpseudotty(&s, &m)) < 0)
|
||||
return -1;
|
||||
#ifdef _SEQUENT_
|
||||
fvhangup(s);
|
||||
#endif
|
||||
strncpy(PtyName, m, sizeof(PtyName));
|
||||
strncpy(TtyName, s, sizeof(TtyName));
|
||||
initmaster(f);
|
||||
*ttyn = TtyName;
|
||||
return f;
|
||||
}
|
||||
#endif
|
||||
|
||||
#if defined(__sgi) && !defined(PTY_DONE)
|
||||
#define PTY_DONE
|
||||
int
|
||||
OpenPTY(ttyn)
|
||||
char **ttyn;
|
||||
{
|
||||
int f;
|
||||
char *name;
|
||||
RETSIGTYPE (*sigcld)__ARGS(SIGPROTOARG);
|
||||
|
||||
/*
|
||||
* SIGCHLD set to SIG_DFL for _getpty() because it may fork() and
|
||||
* exec() /usr/adm/mkpts
|
||||
*/
|
||||
sigcld = signal(SIGCHLD, SIG_DFL);
|
||||
name = _getpty(&f, O_RDWR | O_NONBLOCK | O_EXTRA, 0600, 0);
|
||||
signal(SIGCHLD, sigcld);
|
||||
|
||||
if (name == 0)
|
||||
return -1;
|
||||
initmaster(f);
|
||||
*ttyn = name;
|
||||
return f;
|
||||
}
|
||||
#endif
|
||||
|
||||
#if defined(MIPS) && defined(HAVE_DEV_PTC) && !defined(PTY_DONE)
|
||||
#define PTY_DONE
|
||||
int
|
||||
OpenPTY(ttyn)
|
||||
char **ttyn;
|
||||
{
|
||||
int f;
|
||||
struct stat buf;
|
||||
/* used for opening a new pty-pair: */
|
||||
static char TtyName[32];
|
||||
|
||||
if ((f = open("/dev/ptc", O_RDWR | O_NOCTTY | O_NONBLOCK | O_EXTRA, 0)) < 0)
|
||||
return -1;
|
||||
if (mch_fstat(f, &buf) < 0)
|
||||
{
|
||||
close(f);
|
||||
return -1;
|
||||
}
|
||||
sprintf(TtyName, "/dev/ttyq%d", minor(buf.st_rdev));
|
||||
initmaster(f);
|
||||
*ttyn = TtyName;
|
||||
return f;
|
||||
}
|
||||
#endif
|
||||
|
||||
#if defined(HAVE_SVR4_PTYS) && !defined(PTY_DONE) && !defined(hpux)
|
||||
|
||||
/* NOTE: Even though HPUX can have /dev/ptmx, the code below doesn't work! */
|
||||
#define PTY_DONE
|
||||
int
|
||||
OpenPTY(ttyn)
|
||||
char **ttyn;
|
||||
{
|
||||
int f;
|
||||
char *m, *ptsname();
|
||||
int unlockpt __ARGS((int)), grantpt __ARGS((int));
|
||||
RETSIGTYPE (*sigcld)__ARGS(SIGPROTOARG);
|
||||
/* used for opening a new pty-pair: */
|
||||
static char TtyName[32];
|
||||
|
||||
if ((f = open("/dev/ptmx", O_RDWR | O_NOCTTY | O_EXTRA, 0)) == -1)
|
||||
return -1;
|
||||
|
||||
/*
|
||||
* SIGCHLD set to SIG_DFL for grantpt() because it fork()s and
|
||||
* exec()s pt_chmod
|
||||
*/
|
||||
sigcld = signal(SIGCHLD, SIG_DFL);
|
||||
if ((m = ptsname(f)) == NULL || grantpt(f) || unlockpt(f))
|
||||
{
|
||||
signal(SIGCHLD, sigcld);
|
||||
close(f);
|
||||
return -1;
|
||||
}
|
||||
signal(SIGCHLD, sigcld);
|
||||
strncpy(TtyName, m, sizeof(TtyName));
|
||||
initmaster(f);
|
||||
*ttyn = TtyName;
|
||||
return f;
|
||||
}
|
||||
#endif
|
||||
|
||||
#if defined(_AIX) && defined(HAVE_DEV_PTC) && !defined(PTY_DONE)
|
||||
#define PTY_DONE
|
||||
|
||||
#ifdef _IBMR2
|
||||
int aixhack = -1;
|
||||
#endif
|
||||
|
||||
int
|
||||
OpenPTY(ttyn)
|
||||
char **ttyn;
|
||||
{
|
||||
int f;
|
||||
/* used for opening a new pty-pair: */
|
||||
static char TtyName[32];
|
||||
|
||||
/* a dumb looking loop replaced by mycrofts code: */
|
||||
if ((f = open("/dev/ptc", O_RDWR | O_NOCTTY | O_EXTRA)) < 0)
|
||||
return -1;
|
||||
strncpy(TtyName, ttyname(f), sizeof(TtyName));
|
||||
if (geteuid() && mch_access(TtyName, R_OK | W_OK))
|
||||
{
|
||||
close(f);
|
||||
return -1;
|
||||
}
|
||||
initmaster(f);
|
||||
# ifdef _IBMR2
|
||||
if (aixhack >= 0)
|
||||
close(aixhack);
|
||||
if ((aixhack = open(TtyName, O_RDWR | O_NOCTTY | O_EXTRA, 0)) < 0)
|
||||
{
|
||||
close(f);
|
||||
return -1;
|
||||
}
|
||||
# endif
|
||||
*ttyn = TtyName;
|
||||
return f;
|
||||
}
|
||||
#endif
|
||||
|
||||
#ifndef PTY_DONE
|
||||
|
||||
# ifdef hpux
|
||||
static char PtyProto[] = "/dev/ptym/ptyXY";
|
||||
static char TtyProto[] = "/dev/pty/ttyXY";
|
||||
# else
|
||||
# ifdef __BEOS__
|
||||
static char PtyProto[] = "/dev/pt/XY";
|
||||
static char TtyProto[] = "/dev/tt/XY";
|
||||
# else
|
||||
static char PtyProto[] = "/dev/ptyXY";
|
||||
static char TtyProto[] = "/dev/ttyXY";
|
||||
# endif
|
||||
# endif
|
||||
|
||||
int
|
||||
OpenPTY(ttyn)
|
||||
char **ttyn;
|
||||
{
|
||||
char *p, *q, *l, *d;
|
||||
int f;
|
||||
/* used for opening a new pty-pair: */
|
||||
static char PtyName[32];
|
||||
static char TtyName[32];
|
||||
|
||||
strcpy(PtyName, PtyProto);
|
||||
strcpy(TtyName, TtyProto);
|
||||
for (p = PtyName; *p != 'X'; p++)
|
||||
;
|
||||
for (q = TtyName; *q != 'X'; q++)
|
||||
;
|
||||
for (l = PTYRANGE0; (*p = *l) != '\0'; l++)
|
||||
{
|
||||
for (d = PTYRANGE1; (p[1] = *d) != '\0'; d++)
|
||||
{
|
||||
#if !defined(MACOS) || defined(USE_CARBONIZED)
|
||||
if ((f = open(PtyName, O_RDWR | O_NOCTTY | O_EXTRA, 0)) == -1)
|
||||
#else
|
||||
if ((f = open(PtyName, O_RDWR | O_NOCTTY | O_EXTRA)) == -1)
|
||||
#endif
|
||||
continue;
|
||||
q[0] = *l;
|
||||
q[1] = *d;
|
||||
#ifndef MACOS
|
||||
if (geteuid() && mch_access(TtyName, R_OK | W_OK))
|
||||
{
|
||||
close(f);
|
||||
continue;
|
||||
}
|
||||
#endif
|
||||
#if defined(sun) && defined(TIOCGPGRP) && !defined(SUNOS3)
|
||||
/* Hack to ensure that the slave side of the pty is
|
||||
* unused. May not work in anything other than SunOS4.1
|
||||
*/
|
||||
{
|
||||
int pgrp;
|
||||
|
||||
/* tcgetpgrp does not work (uses TIOCGETPGRP)! */
|
||||
if (ioctl(f, TIOCGPGRP, (char *)&pgrp) != -1 || errno != EIO)
|
||||
{
|
||||
close(f);
|
||||
continue;
|
||||
}
|
||||
}
|
||||
#endif
|
||||
initmaster(f);
|
||||
*ttyn = TtyName;
|
||||
return f;
|
||||
}
|
||||
}
|
||||
return -1;
|
||||
}
|
||||
#endif
|
||||
Reference in New Issue
Block a user