| /* 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 |
| */ |
| |
| #include "vim.h" |
| |
| #include <signal.h> |
| |
| #ifdef __CYGWIN32__ |
| # include <sys/termios.h> |
| #endif |
| |
| #ifdef 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 |
| |
| #ifdef HAVE_UNISTD_H |
| # include <unistd.h> |
| #endif |
| |
| #if HAVE_TERMIO_H |
| # include <termio.h> |
| #else |
| # ifdef 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. |
| */ |
| #ifndef O_NOCTTY |
| # define O_NOCTTY 0 |
| #endif |
| |
| static void |
| initmaster(f) |
| int f UNUSED; |
| { |
| #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 |
| vim_strncpy((char_u *)PtyName, (char_u *)m, sizeof(PtyName) - 1); |
| vim_strncpy((char_u *)TtyName, (char_u *)s, sizeof(TtyName) - 1); |
| 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) && !defined(MACOS_X) |
| |
| /* NOTE: Even though HPUX can have /dev/ptmx, the code below doesn't work! |
| * Same for Mac OS X Leopard. */ |
| #define PTY_DONE |
| int |
| OpenPTY(ttyn) |
| char **ttyn; |
| { |
| int f; |
| char *m; |
| char *(ptsname __ARGS((int))); |
| int unlockpt __ARGS((int)); |
| 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); |
| vim_strncpy((char_u *)TtyName, (char_u *)m, sizeof(TtyName) - 1); |
| 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; |
| vim_strncpy((char_u *)TtyName, (char_u *)ttyname(f), sizeof(TtyName) - 1); |
| if (geteuid() != ROOT_UID && 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() != ROOT_UID && 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 |
