Mercurial > vim
annotate src/pty.c @ 14363:dcae605ebd07
Added tag v8.1.0196 for changeset 74470fae51f904407c2942159550e3ee3fb31f48
| author | Christian Brabandt <cb@256bit.org> |
|---|---|
| date | Thu, 19 Jul 2018 04:15:05 +0200 |
| parents | 8412df1479a3 |
| children | 27b9a84395b5 |
| rev | line source |
|---|---|
|
10042
4aead6a9b7a9
commit https://github.com/vim/vim/commit/edf3f97ae2af024708ebb4ac614227327033ca47
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parents:
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diff
changeset
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1 /* vi:set ts=8 sts=4 sw=4 noet: |
| 7 | 2 * |
| 3 * VIM - Vi IMproved by Bram Moolenaar | |
| 4 * | |
| 5 * Do ":help uganda" in Vim to read copying and usage conditions. | |
| 6 * Do ":help credits" in Vim to see a list of people who contributed. | |
| 7 * See README.txt for an overview of the Vim source code. | |
| 8 */ | |
| 9 /* | |
| 10 * The stuff in this file mostly comes from the "screen" program. | |
| 11 * Included with permission from Juergen Weigert. | |
| 12 * Copied from "pty.c". "putenv.c" was used for putenv() in misc2.c. | |
| 13 * | |
| 14 * It has been modified to work better with Vim. | |
| 15 * The parts that are not used in Vim have been deleted. | |
| 16 * See the "screen" sources for the complete stuff. | |
| 3282 | 17 * |
| 18 * This specific version is distibuted under the Vim license (attribution by | |
| 19 * Juergen Weigert), the GPL applies to the original version, see the | |
| 20 * copyright notice below. | |
| 7 | 21 */ |
| 22 | |
| 23 /* Copyright (c) 1993 | |
| 24 * Juergen Weigert (jnweiger@immd4.informatik.uni-erlangen.de) | |
| 25 * Michael Schroeder (mlschroe@immd4.informatik.uni-erlangen.de) | |
| 26 * Copyright (c) 1987 Oliver Laumann | |
| 27 * | |
| 28 * This program is free software; you can redistribute it and/or modify | |
| 29 * it under the terms of the GNU General Public License as published by | |
| 30 * the Free Software Foundation; either version 2, or (at your option) | |
| 31 * any later version. | |
| 32 * | |
| 33 * This program is distributed in the hope that it will be useful, | |
| 34 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 35 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 36 * GNU General Public License for more details. | |
| 37 * | |
| 38 * You should have received a copy of the GNU General Public License | |
| 39 * along with this program (see the file COPYING); if not, write to the | |
| 40 * Free Software Foundation, Inc., | |
| 41 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA | |
| 42 */ | |
| 43 | |
| 44 #include "vim.h" | |
| 45 | |
|
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patch 8.0.0751: OpenPTY missing with some combination of features
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46 #if defined(FEAT_GUI) || defined(FEAT_JOB_CHANNEL) |
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patch 8.0.0750: OpenPTY missing in non-GUI build
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47 |
| 7 | 48 #include <signal.h> |
| 49 | |
| 50 #ifdef __CYGWIN32__ | |
| 51 # include <sys/termios.h> | |
| 52 #endif | |
| 53 | |
| 1030 | 54 #ifdef HAVE_SYS_IOCTL_H |
| 7 | 55 # include <sys/ioctl.h> |
| 56 #endif | |
| 57 | |
| 58 #if HAVE_STROPTS_H | |
| 59 #include <sys/types.h> | |
| 60 #ifdef sinix | |
| 61 #define buf_T __system_buf_t__ | |
| 62 #endif | |
| 63 #include <stropts.h> | |
| 64 #ifdef sinix | |
| 65 #undef buf_T | |
| 66 #endif | |
|
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commit https://github.com/vim/vim/commit/a899e6ecc4523c7e411eaf6fbaa4197d70f6f39e
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parents:
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67 # ifdef SUN_SYSTEM |
| 7 | 68 # include <sys/conf.h> |
| 69 # endif | |
| 70 #endif | |
| 71 | |
| 1030 | 72 #ifdef HAVE_UNISTD_H |
| 7 | 73 # include <unistd.h> |
| 74 #endif | |
| 75 | |
| 76 #if HAVE_TERMIO_H | |
| 77 # include <termio.h> | |
| 78 #else | |
| 1030 | 79 # ifdef HAVE_TERMIOS_H |
| 7 | 80 # include <termios.h> |
| 81 # endif | |
| 82 #endif | |
| 83 | |
| 84 #if HAVE_SYS_STREAM_H | |
| 85 # include <sys/stream.h> | |
| 86 #endif | |
| 87 | |
| 88 #if HAVE_SYS_PTEM_H | |
| 89 # include <sys/ptem.h> | |
| 90 #endif | |
| 91 | |
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patch 8.0.1236: Mac features are confusing
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92 #if !defined(SUN_SYSTEM) && !defined(VMS) |
| 7 | 93 # include <sys/ioctl.h> |
| 94 #endif | |
| 95 | |
|
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commit https://github.com/vim/vim/commit/a899e6ecc4523c7e411eaf6fbaa4197d70f6f39e
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96 #if defined(SUN_SYSTEM) && defined(LOCKPTY) && !defined(TIOCEXCL) |
| 7 | 97 # include <sys/ttold.h> |
| 98 #endif | |
| 99 | |
| 100 #ifdef ISC | |
| 101 # include <sys/tty.h> | |
| 102 # include <sys/sioctl.h> | |
| 103 # include <sys/pty.h> | |
| 104 #endif | |
| 105 | |
| 106 #ifdef sgi | |
| 107 # include <sys/sysmacros.h> | |
| 108 #endif | |
| 109 | |
| 110 #if defined(_INCLUDE_HPUX_SOURCE) && !defined(hpux) | |
| 111 # define hpux | |
| 112 #endif | |
| 113 | |
| 114 /* | |
| 115 * if no PTYRANGE[01] is in the config file, we pick a default | |
| 116 */ | |
| 117 #ifndef PTYRANGE0 | |
| 118 # define PTYRANGE0 "qprs" | |
| 119 #endif | |
| 120 #ifndef PTYRANGE1 | |
| 121 # define PTYRANGE1 "0123456789abcdef" | |
| 122 #endif | |
| 123 | |
| 124 /* SVR4 pseudo ttys don't seem to work with SCO-5 */ | |
| 125 #ifdef M_UNIX | |
| 126 # undef HAVE_SVR4_PTYS | |
| 127 #endif | |
| 128 | |
|
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commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
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129 static void initmaster(int); |
| 7 | 130 |
| 131 /* | |
| 2834 | 132 * Open all ptys with O_NOCTTY, just to be on the safe side. |
| 7 | 133 */ |
| 134 #ifndef O_NOCTTY | |
| 135 # define O_NOCTTY 0 | |
| 136 #endif | |
| 137 | |
| 138 static void | |
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c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
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139 initmaster(int f UNUSED) |
| 7 | 140 { |
| 141 #ifndef VMS | |
| 142 # ifdef POSIX | |
| 143 tcflush(f, TCIOFLUSH); | |
| 144 # else | |
| 145 # ifdef TIOCFLUSH | |
| 146 (void)ioctl(f, TIOCFLUSH, (char *) 0); | |
| 147 # endif | |
| 148 # endif | |
| 149 # ifdef LOCKPTY | |
| 150 (void)ioctl(f, TIOCEXCL, (char *) 0); | |
| 151 # endif | |
| 152 #endif | |
| 153 } | |
| 154 | |
| 155 /* | |
| 156 * This causes a hang on some systems, but is required for a properly working | |
| 157 * pty on others. Needs to be tuned... | |
| 158 */ | |
| 159 int | |
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commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
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160 SetupSlavePTY(int fd) |
| 7 | 161 { |
| 162 if (fd < 0) | |
| 163 return 0; | |
| 164 #if defined(I_PUSH) && defined(HAVE_SVR4_PTYS) && !defined(sgi) && !defined(linux) && !defined(__osf__) && !defined(M_UNIX) | |
| 165 # if defined(HAVE_SYS_PTEM_H) || defined(hpux) | |
| 166 if (ioctl(fd, I_PUSH, "ptem") != 0) | |
| 167 return -1; | |
| 168 # endif | |
| 169 if (ioctl(fd, I_PUSH, "ldterm") != 0) | |
| 170 return -1; | |
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commit https://github.com/vim/vim/commit/a899e6ecc4523c7e411eaf6fbaa4197d70f6f39e
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171 # ifdef SUN_SYSTEM |
| 7 | 172 if (ioctl(fd, I_PUSH, "ttcompat") != 0) |
| 173 return -1; | |
| 174 # endif | |
| 175 #endif | |
| 176 return 0; | |
| 177 } | |
| 178 | |
| 179 | |
| 180 #if defined(OSX) && !defined(PTY_DONE) | |
| 181 #define PTY_DONE | |
| 182 int | |
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commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
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183 OpenPTY(char **ttyn) |
| 7 | 184 { |
| 185 int f; | |
| 186 static char TtyName[32]; | |
| 187 | |
| 188 if ((f = open_controlling_pty(TtyName)) < 0) | |
| 189 return -1; | |
| 190 initmaster(f); | |
| 191 *ttyn = TtyName; | |
| 192 return f; | |
| 193 } | |
| 194 #endif | |
| 195 | |
| 196 #if (defined(sequent) || defined(_SEQUENT_)) && defined(HAVE_GETPSEUDOTTY) \ | |
| 197 && !defined(PTY_DONE) | |
| 198 #define PTY_DONE | |
| 199 int | |
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commit https://github.com/vim/vim/commit/d14e00ea67afbaa8cb4a7e6b1eb306da6a2d5adb
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200 OpenPTY(char **ttyn) |
| 7 | 201 { |
| 202 char *m, *s; | |
| 203 int f; | |
| 204 /* used for opening a new pty-pair: */ | |
| 205 static char PtyName[32]; | |
| 206 static char TtyName[32]; | |
| 207 | |
| 208 if ((f = getpseudotty(&s, &m)) < 0) | |
| 209 return -1; | |
| 210 #ifdef _SEQUENT_ | |
| 211 fvhangup(s); | |
| 212 #endif | |
| 2760 | 213 vim_strncpy((char_u *)PtyName, (char_u *)m, sizeof(PtyName) - 1); |
| 214 vim_strncpy((char_u *)TtyName, (char_u *)s, sizeof(TtyName) - 1); | |
| 7 | 215 initmaster(f); |
| 216 *ttyn = TtyName; | |
| 217 return f; | |
| 218 } | |
| 219 #endif | |
| 220 | |
| 221 #if defined(__sgi) && !defined(PTY_DONE) | |
| 222 #define PTY_DONE | |
| 223 int | |
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commit https://github.com/vim/vim/commit/d14e00ea67afbaa8cb4a7e6b1eb306da6a2d5adb
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224 OpenPTY(char **ttyn) |
| 7 | 225 { |
| 226 int f; | |
| 227 char *name; | |
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commit https://github.com/vim/vim/commit/d99df423c559d85c17779b3685426c489554908c
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228 RETSIGTYPE (*sigcld) SIGPROTOARG; |
| 7 | 229 |
| 230 /* | |
| 231 * SIGCHLD set to SIG_DFL for _getpty() because it may fork() and | |
| 232 * exec() /usr/adm/mkpts | |
| 233 */ | |
| 234 sigcld = signal(SIGCHLD, SIG_DFL); | |
| 235 name = _getpty(&f, O_RDWR | O_NONBLOCK | O_EXTRA, 0600, 0); | |
| 236 signal(SIGCHLD, sigcld); | |
| 237 | |
| 238 if (name == 0) | |
| 239 return -1; | |
| 240 initmaster(f); | |
| 241 *ttyn = name; | |
| 242 return f; | |
| 243 } | |
| 244 #endif | |
| 245 | |
| 246 #if defined(MIPS) && defined(HAVE_DEV_PTC) && !defined(PTY_DONE) | |
| 247 #define PTY_DONE | |
| 248 int | |
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commit https://github.com/vim/vim/commit/d14e00ea67afbaa8cb4a7e6b1eb306da6a2d5adb
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249 OpenPTY(char **ttyn) |
| 7 | 250 { |
| 251 int f; | |
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commit https://github.com/vim/vim/commit/8767f52fbfd4f053ce00a978227c95f1d7d323fe
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252 stat_T buf; |
| 7 | 253 /* used for opening a new pty-pair: */ |
| 254 static char TtyName[32]; | |
| 255 | |
| 256 if ((f = open("/dev/ptc", O_RDWR | O_NOCTTY | O_NONBLOCK | O_EXTRA, 0)) < 0) | |
| 257 return -1; | |
| 258 if (mch_fstat(f, &buf) < 0) | |
| 259 { | |
| 260 close(f); | |
| 261 return -1; | |
| 262 } | |
| 263 sprintf(TtyName, "/dev/ttyq%d", minor(buf.st_rdev)); | |
| 264 initmaster(f); | |
| 265 *ttyn = TtyName; | |
| 266 return f; | |
| 267 } | |
| 268 #endif | |
| 269 | |
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patch 8.0.1166: :terminal doesn't work on Mac High Sierra
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270 #if defined(HAVE_SVR4_PTYS) && !defined(PTY_DONE) && !defined(hpux) \ |
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patch 8.0.1550: various small problems in source files
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271 && !(defined(MACOS_X) && !defined(MAC_OS_X_VERSION_10_6)) |
| 7 | 272 |
| 1703 | 273 /* NOTE: Even though HPUX can have /dev/ptmx, the code below doesn't work! |
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patch 8.0.1166: :terminal doesn't work on Mac High Sierra
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274 * Same for Mac OS X Leopard (10.5). */ |
| 7 | 275 #define PTY_DONE |
| 276 int | |
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commit https://github.com/vim/vim/commit/d14e00ea67afbaa8cb4a7e6b1eb306da6a2d5adb
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277 OpenPTY(char **ttyn) |
| 7 | 278 { |
| 279 int f; | |
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Fix for compiler warning about function prototype in pty.c.
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280 char *m; |
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commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
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281 char *(ptsname(int)); |
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commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
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282 int unlockpt(int); |
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0b6c37dd858d
commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
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283 int grantpt(int); |
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0b6c37dd858d
commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
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284 RETSIGTYPE (*sigcld) SIGPROTOARG; |
| 7 | 285 /* used for opening a new pty-pair: */ |
| 286 static char TtyName[32]; | |
| 287 | |
| 288 if ((f = open("/dev/ptmx", O_RDWR | O_NOCTTY | O_EXTRA, 0)) == -1) | |
| 289 return -1; | |
| 290 | |
| 291 /* | |
| 292 * SIGCHLD set to SIG_DFL for grantpt() because it fork()s and | |
| 293 * exec()s pt_chmod | |
| 294 */ | |
| 295 sigcld = signal(SIGCHLD, SIG_DFL); | |
| 296 if ((m = ptsname(f)) == NULL || grantpt(f) || unlockpt(f)) | |
| 297 { | |
| 298 signal(SIGCHLD, sigcld); | |
| 299 close(f); | |
| 300 return -1; | |
| 301 } | |
| 302 signal(SIGCHLD, sigcld); | |
| 2760 | 303 vim_strncpy((char_u *)TtyName, (char_u *)m, sizeof(TtyName) - 1); |
| 7 | 304 initmaster(f); |
| 305 *ttyn = TtyName; | |
| 306 return f; | |
| 307 } | |
| 308 #endif | |
| 309 | |
| 310 #if defined(_AIX) && defined(HAVE_DEV_PTC) && !defined(PTY_DONE) | |
| 311 #define PTY_DONE | |
| 312 | |
| 313 #ifdef _IBMR2 | |
| 314 int aixhack = -1; | |
| 315 #endif | |
| 316 | |
| 317 int | |
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commit https://github.com/vim/vim/commit/d14e00ea67afbaa8cb4a7e6b1eb306da6a2d5adb
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318 OpenPTY(char **ttyn) |
| 7 | 319 { |
| 320 int f; | |
| 321 /* used for opening a new pty-pair: */ | |
| 322 static char TtyName[32]; | |
| 323 | |
| 324 /* a dumb looking loop replaced by mycrofts code: */ | |
| 325 if ((f = open("/dev/ptc", O_RDWR | O_NOCTTY | O_EXTRA)) < 0) | |
| 326 return -1; | |
| 2760 | 327 vim_strncpy((char_u *)TtyName, (char_u *)ttyname(f), sizeof(TtyName) - 1); |
| 1076 | 328 if (geteuid() != ROOT_UID && mch_access(TtyName, R_OK | W_OK)) |
| 7 | 329 { |
| 330 close(f); | |
| 331 return -1; | |
| 332 } | |
| 333 initmaster(f); | |
| 334 # ifdef _IBMR2 | |
| 335 if (aixhack >= 0) | |
| 336 close(aixhack); | |
| 337 if ((aixhack = open(TtyName, O_RDWR | O_NOCTTY | O_EXTRA, 0)) < 0) | |
| 338 { | |
| 339 close(f); | |
| 340 return -1; | |
| 341 } | |
| 342 # endif | |
| 343 *ttyn = TtyName; | |
| 344 return f; | |
| 345 } | |
| 346 #endif | |
| 347 | |
| 348 #ifndef PTY_DONE | |
| 349 | |
| 350 # ifdef hpux | |
| 351 static char PtyProto[] = "/dev/ptym/ptyXY"; | |
| 352 static char TtyProto[] = "/dev/pty/ttyXY"; | |
| 353 # else | |
| 354 # ifdef __BEOS__ | |
| 355 static char PtyProto[] = "/dev/pt/XY"; | |
| 356 static char TtyProto[] = "/dev/tt/XY"; | |
| 357 # else | |
| 358 static char PtyProto[] = "/dev/ptyXY"; | |
| 359 static char TtyProto[] = "/dev/ttyXY"; | |
| 360 # endif | |
| 361 # endif | |
| 362 | |
| 363 int | |
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commit https://github.com/vim/vim/commit/d14e00ea67afbaa8cb4a7e6b1eb306da6a2d5adb
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changeset
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364 OpenPTY(char **ttyn) |
| 7 | 365 { |
| 366 char *p, *q, *l, *d; | |
| 367 int f; | |
| 368 /* used for opening a new pty-pair: */ | |
| 369 static char PtyName[32]; | |
| 370 static char TtyName[32]; | |
| 371 | |
| 372 strcpy(PtyName, PtyProto); | |
| 373 strcpy(TtyName, TtyProto); | |
| 374 for (p = PtyName; *p != 'X'; p++) | |
| 375 ; | |
| 376 for (q = TtyName; *q != 'X'; q++) | |
| 377 ; | |
| 378 for (l = PTYRANGE0; (*p = *l) != '\0'; l++) | |
| 379 { | |
| 380 for (d = PTYRANGE1; (p[1] = *d) != '\0'; d++) | |
| 381 { | |
| 382 if ((f = open(PtyName, O_RDWR | O_NOCTTY | O_EXTRA, 0)) == -1) | |
| 383 continue; | |
| 384 q[0] = *l; | |
| 385 q[1] = *d; | |
| 1076 | 386 if (geteuid() != ROOT_UID && mch_access(TtyName, R_OK | W_OK)) |
| 7 | 387 { |
| 388 close(f); | |
| 389 continue; | |
| 390 } | |
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commit https://github.com/vim/vim/commit/a899e6ecc4523c7e411eaf6fbaa4197d70f6f39e
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diff
changeset
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391 #if defined(SUN_SYSTEM) && defined(TIOCGPGRP) && !defined(SUNOS3) |
| 7 | 392 /* Hack to ensure that the slave side of the pty is |
| 393 * unused. May not work in anything other than SunOS4.1 | |
| 394 */ | |
| 395 { | |
| 396 int pgrp; | |
| 397 | |
| 398 /* tcgetpgrp does not work (uses TIOCGETPGRP)! */ | |
| 399 if (ioctl(f, TIOCGPGRP, (char *)&pgrp) != -1 || errno != EIO) | |
| 400 { | |
| 401 close(f); | |
| 402 continue; | |
| 403 } | |
| 404 } | |
| 405 #endif | |
| 406 initmaster(f); | |
| 407 *ttyn = TtyName; | |
| 408 return f; | |
| 409 } | |
| 410 } | |
| 411 return -1; | |
| 412 } | |
| 413 #endif | |
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patch 8.0.0750: OpenPTY missing in non-GUI build
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414 |
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patch 8.0.0750: OpenPTY missing in non-GUI build
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415 #endif /* FEAT_GUI || FEAT_TERMINAL */ |