Mercurial > vim
view src/pty.c @ 15636:6f1c7e9a6393 v8.1.0826
patch 8.1.0826: too many #ifdefs
commit https://github.com/vim/vim/commit/29ddebef4038d2d2b3bc9d8d3b0109f4046d6fbf
Author: Bram Moolenaar <Bram@vim.org>
Date: Sat Jan 26 17:28:26 2019 +0100
patch 8.1.0826: too many #ifdefs
Problem: Too many #ifdefs.
Solution: Graduate FEAT_VIRTUALEDIT. Adds about 10Kbyte to the code.
author | Bram Moolenaar <Bram@vim.org> |
---|---|
date | Sat, 26 Jan 2019 17:30:15 +0100 |
parents | d4a6d575e910 |
children | c1dca26a6949 |
line wrap: on
line source
/* vi:set ts=8 sts=4 sw=4 noet: * * 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. * * This specific version is distibuted under the Vim license (attribution by * Juergen Weigert), the GPL applies to the original version, see the * copyright notice below. */ /* 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" #if defined(FEAT_GUI) || defined(FEAT_JOB_CHANNEL) #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_SYSTEM # include <sys/conf.h> # if defined(HAVE_SYS_PTMS_H) && defined(HAVE_SVR4_PTYS) # include <sys/ptms.h> # endif # 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_SYSTEM) && !defined(VMS) # include <sys/ioctl.h> #endif #if defined(SUN_SYSTEM) && 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 /* * Open all ptys with O_NOCTTY, just to be on the safe side. */ #ifndef O_NOCTTY # define O_NOCTTY 0 #endif static void initmaster(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 setup_slavepty(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_SYSTEM if (ioctl(fd, I_PUSH, "ttcompat") != 0) return -1; # endif #endif return 0; } #if defined(OSX) && !defined(PTY_DONE) #define PTY_DONE int mch_openpty(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 mch_openpty(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 mch_openpty(char **ttyn) { int f; char *name; RETSIGTYPE (*sigcld) 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 mch_openpty(char **ttyn) { int f; stat_T 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) && !defined(MAC_OS_X_VERSION_10_6)) /* NOTE: Even though HPUX can have /dev/ptmx, the code below doesn't work! * Same for Mac OS X Leopard (10.5). */ #define PTY_DONE int mch_openpty(char **ttyn) { int f; char *m; char *(ptsname(int)); int unlockpt(int); int grantpt(int); RETSIGTYPE (*sigcld) 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 mch_openpty(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 mch_openpty(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 ((f = open(PtyName, O_RDWR | O_NOCTTY | O_EXTRA, 0)) == -1) continue; q[0] = *l; q[1] = *d; if (geteuid() != ROOT_UID && mch_access(TtyName, R_OK | W_OK)) { close(f); continue; } #if defined(SUN_SYSTEM) && 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 /* * Call isatty(fd), except for SunOS where it's done differently. */ int mch_isatty(int fd) { # if defined(I_STR) && defined(HAVE_SYS_PTMS_H) && defined(HAVE_SVR4_PTYS) \ && defined(SUN_SYSTEM) // On SunOS, isatty() for /dev/ptmx returns false or sometimes can hang up // in the inner ioctl(), and therefore first determine whether "fd" is a // master device. struct strioctl istr; istr.ic_cmd = ISPTM; istr.ic_timout = 0; istr.ic_dp = NULL; istr.ic_len = 0; if (ioctl(fd, I_STR, &istr) == 0) // Trick: return 2 in order to advice the caller that "fd" is a master // device. cf. src/os_unix.c:get_tty_fd() return 2; # endif return isatty(fd); } #endif /* FEAT_GUI || FEAT_JOB_CHANNEL */