1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513
|
/****************************************************************************
* *
* T E R M I N A L S *
* *
* C Implementation File *
* *
* Copyright (C) 2008-2013, AdaCore *
* *
* GNAT is free software; you can redistribute it and/or modify it under *
* terms of the GNU General Public License as published by the Free Soft- *
* ware Foundation; either version 2, or (at your option) any later ver- *
* sion. GNAT is distributed in the hope that it will be useful, but WITH- *
* OUT 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 distributed with GNAT; see file COPYING. If not, write *
* to the Free Software Foundation, 51 Franklin Street, Fifth Floor, *
* Boston, MA 02110-1301, USA. *
* *
* As a special exception, if you link this file with other files to *
* produce an executable, this file does not by itself cause the resulting *
* executable to be covered by the GNU General Public License. This except- *
* ion does not however invalidate any other reasons why the executable *
* file might be covered by the GNU Public License. *
* *
* GNAT was originally developed by the GNAT team at New York University. *
* Extensive contributions were provided by Ada Core Technologies Inc. *
* *
****************************************************************************/
#ifndef WIN32
/* First defined some macro to identify easily some systems */
#if defined (__FreeBSD__) \
|| defined (__OpenBSD__) \
|| defined (__NetBSD__) \
|| defined (__FreeBSD_kernel__) \
|| defined (__DragonFly__)
# define FREEBSD
#endif
#if defined (__alpha__) && defined (__osf__)
# define OSF1
#endif
#if defined (__mips) && defined (__sgi)
# define IRIX
#endif
/* Include every system header we need */
#define _GNU_SOURCE
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
/* On some system termio is either absent or including it will disable termios
(HP-UX) */
#if ! defined (__hpux__) && ! defined (FREEBSD) && ! defined (__APPLE__) && ! defined (__GNU__)
# include <termio.h>
#endif
#include <sys/ioctl.h>
#include <termios.h>
#include <fcntl.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#if defined (sun)
# include <sys/stropts.h>
#endif
#if defined (FREEBSD) || defined (sun)
# include <sys/signal.h>
#endif
#if defined (__hpux__)
# include <sys/termio.h>
# include <sys/stropts.h>
#endif
#define CDISABLE _POSIX_VDISABLE
/* On HP-UX and Sun system, there is a bzero function but with a different
signature. Use memset instead */
#if defined (__hpux__) || defined (sun) || defined (_AIX)
# define bzero(s,n) memset (s,0,n)
#endif
/* POSIX does not specify how to open the master side of a terminal.Several
methods are available (system specific):
1- using a cloning device (USE_CLONE_DEVICE)
2- getpt (USE_GETPT)
3- openpty (USE_OPENPTY)
4- _getpty (USE_GETPTY)
When using the cloning device method, the macro USE_CLONE_DEVICE should
contains a full path to the adequate device.
When a new system is about to be supported, one of the previous macro should
be set otherwise allocate_pty_desc will return an error
*/
/* Configurable part */
#if defined (__APPLE__) || defined (FREEBSD)
#define USE_OPENPTY
#elif defined (IRIX)
#define USE_GETPTY
#elif defined (linux)
#define USE_GETPT
#elif defined (sun)
#define USE_CLONE_DEVICE "/dev/ptmx"
#elif defined (_AIX)
#define USE_CLONE_DEVICE "/dev/ptc"
#elif defined (OSF1)
/* On Tru64, the systems offers various interfaces to open a terminal:
- /dev/ptmx: this the system V driver (stream based),
- /dev/ptmx_bsd: the non stream based clone device,
- the openpty function which use BSD interface.
Using directly /dev/ptmx_bsd on Tru64 5.1B seems to consume all the
available slave ptys (why ?). When using openpty it seems that the function
handles the creation of entries in /dev/pts when necessary and so avoid this
starvation issue. The pty man entry suggests also to use openpty.
*/
#define USE_OPENPTY
#elif defined (__hpux__)
/* On HP-UX we use the streamed version. Using the non streamed version is not
recommanded (through "/dev/ptym/clone"). Indeed it seems that there are
issues to detect process terminations. */
#define USE_CLONE_DEVICE "/dev/ptmx"
#endif
/* structure that holds information about the terminal used and the process
connected on the slave side */
typedef struct pty_desc_struct {
int master_fd; /* fd of the master side if the terminal */
int slave_fd; /* fd of the slave side */
char slave_name[32]; /* filename of the slave side */
int child_pid; /* PID of the child process connected to the slave side
of the terminal */
} pty_desc;
/* allocate_pty_desc - allocate a pseudo terminal
*
* PARAMETERS
* out desc returned pointer to a pty_desc structure containing information
* about the opened pseudo terminal
* RETURN VALUE
* -1 if failed
* 0 if ok
* COMMENTS
* If the function is successful we should have at least the master side fd
* and the slave side filename. On some system, the slave side will also be
* opened. If this is not the case the slave side will be open once we are in
* the child process (note that opening the slave side at this stage will
* failed...).
*/
extern char* ptsname (int);
static int
allocate_pty_desc (pty_desc **desc) {
pty_desc *result;
int status = 0;
int slave_fd = -1;
int master_fd = -1;
char *slave_name = NULL;
#ifdef USE_GETPT
master_fd = getpt ();
#elif defined (USE_OPENPTY)
status = openpty (&master_fd, &slave_fd, NULL, NULL, NULL);
#elif defined (USE_GETPTY)
slave_name = _getpty (&master_fd, O_RDWR | O_NDELAY, 0600, 0);
if (slave_name == NULL) status = -1;
#elif defined (USE_CLONE_DEVICE)
master_fd = open (USE_CLONE_DEVICE, O_RDWR | O_NONBLOCK, 0);
#else
printf ("[error]: terminal support is not configured\n");
return -1;
#endif
/* at this stage we should have the master side fd and status should be 0 */
if (status != 0 || master_fd < 0)
{
/* If this is not the case close all opened files and return -1 */
printf ("[error]: cannot allocate master side of the pty\n");
if (master_fd >= 0) close (master_fd);
if (slave_fd >= 0) close (slave_fd);
*desc = NULL;
return -1;
}
/* retrieve the file name of the slave side if necessary */
if (slave_name == NULL) slave_name = (char *) ptsname (master_fd);
/* Now we should have slave file name */
if (slave_name == NULL)
{
/* If not the case close any opened file and return - 1 */
printf ("[error]: cannot allocate slave side of the pty\n");
if (master_fd >= 0) close (master_fd);
if (slave_fd >= 0) close (slave_fd);
*desc = NULL;
return -1;
}
/* grant access to the slave side */
grantpt (master_fd);
/* unlock the terminal */
unlockpt (master_fd);
/* set desc and return 0 */
result = malloc (sizeof (pty_desc));
result->master_fd = master_fd;
result->slave_fd = slave_fd;
/* the string returned by ptsname or _getpty is a static allocated string. So
we should make a copy */
strncpy (result->slave_name, slave_name, sizeof (result->slave_name));
result->slave_name[sizeof (result->slave_name) - 1] = '\0';
result->child_pid = -1;
*desc=result;
return 0;
}
/* some utility macro that make the code of child_setup_tty easier to read */
#define __enable(a, b) ((a) |= (b))
#define __disable(a, b) ((a) &= ~(b))
/* some properties do not exist on all systems. Set their value to 0 in that
case */
#ifndef IUCLC
#define IUCLC 0
#endif
#ifndef OLCUC
#define OLCUC 0
#endif
#ifndef NLDLY
#define NLDLY 0
#define CRDLY 0
#define TABDLY 0
#define BSDLY 0
#define VTDLY 0
#define FFDLY 0
#endif
/* child_setup_tty - set terminal properties
*
* PARAMETERS
* file descriptor of the slave side of the terminal
*
* RETURN VALUE
* 0 if success, any other value if failed.
*
* COMMENTS
* None
*/
static int
child_setup_tty (int fd)
{
struct termios s;
int status;
/* ensure that s is filled with 0 */
bzero (&s, sizeof (&s));
/* Get the current terminal settings */
status = tcgetattr (fd, &s);
if (status != 0) return -1;
/* Adjust input modes */
__disable (s.c_iflag, IUCLC); /* don't transform to lower case */
__disable (s.c_iflag, ISTRIP); /* don't delete 8th bit */
/* Adjust output modes */
__enable (s.c_oflag, OPOST); /* enable postprocessing */
__disable (s.c_oflag, ONLCR); /* don't map LF to CR-LF */
__disable (s.c_oflag, NLDLY|CRDLY|TABDLY|BSDLY|VTDLY|FFDLY);
/* disable delays */
__disable (s.c_oflag, OLCUC); /* don't transform to upper case */
/* Adjust control modes */
s.c_cflag = (s.c_cflag & ~CSIZE) | CS8; /* Don't strip 8th bit */
/* Adjust local modes */
__disable (s.c_lflag, ECHO); /* disable echo */
__enable (s.c_lflag, ISIG); /* enable signals */
__enable (s.c_lflag, ICANON); /* erase/kill/eof processing */
/* Adjust control characters */
/* IMPORTANT: we need to ensure that Ctrl-C will trigger an interrupt signal
otherwise send_signal_via_characters will fail */
s.c_cc[VEOF] = 04; /* insure that EOF is Control-D */
s.c_cc[VERASE] = CDISABLE; /* disable erase processing */
s.c_cc[VKILL] = CDISABLE; /* disable kill processing */
s.c_cc[VQUIT] = 28; /* Control-\ */
s.c_cc[VINTR] = 03; /* Control-C */
s.c_cc[VEOL] = CDISABLE;
s.c_cc[VSUSP] = 26; /* Control-Z */
/* push our changes */
status = tcsetattr (fd, TCSADRAIN, &s);
return status;
}
/* setup_communication - interface to the external world. Should be called
* before forking. On Unixes this function only call allocate_pty_desc.
* The Windows implementation (in different part of this file) is very
* different.
*
* PARAMETERS
* out desc returned pointer to a pty_desc structure
* RETURN VALUE
* 0 if success, -1 otherwise
*/
int gvd_setup_communication (pty_desc** desc) {
return allocate_pty_desc (desc);
}
/* gvd_setup_parent_communication - interface to the external world. Should
* be called after forking in the parent process
*
* PARAMETERS
* out in_fd
out out_fd
out err_fd fds corresponding to the parent side of the
terminal
in pid_out child process pid
* RETRUN VALUE
* 0
*/
int
gvd_setup_parent_communication
(pty_desc *desc,
int* in_fd, /* input */
int* out_fd, /* output */
int* err_fd, /* error */
int* pid_out)
{
*in_fd = desc->master_fd;
*out_fd= desc->master_fd;
*err_fd= desc->master_fd;
desc->child_pid = *pid_out;
return 0;
}
/* gvd_setup_winsize - Sets up the size of the terminal
* This lets the process know the size of the terminal
*/
void gvd_setup_winsize (pty_desc *desc, int rows, int columns) {
#ifdef TIOCGWINSZ
struct winsize s;
s.ws_row = (unsigned short)rows;
s.ws_col = (unsigned short)columns;
s.ws_xpixel = 0;
s.ws_ypixel = 0;
ioctl (desc->master_fd, TIOCSWINSZ, &s);
#ifdef SIGWINCH
if (desc->child_pid > 0) {
/* Let the process know about the change in size */
kill (desc->child_pid, SIGWINCH);
}
#endif
#endif
}
/* gvd_setup_child_communication - interface to external world. Should be
* called after forking in the child process. On Unixes, this function
* first adjust the line setting, set standard output, input and error and
* then spawn the program.
*
* PARAMETERS
* desc a pty_desc structure containing the pty parameters
* new_argv argv of the program to be spawned
* RETURN VALUE
* this function should not return
*/
int
gvd_setup_child_communication (pty_desc *desc, char **new_argv,
int Use_Pipes) {
int status;
int pid = getpid ();
setsid ();
/* open the slave side of the terminal if necessary */
if (desc->slave_fd == -1)
#if defined (_AIX)
/* On AIX, if the slave process is not opened with O_NDELAY or O_NONBLOCK
then we might have some processes hanging on I/O system calls. Not sure
we can do that for all platforms so do it only on AIX for the moment.
On AIX O_NONBLOCK and O_NDELAY have slightly different meanings. When
reading on the slave fd, in case there is no data available, if O_NDELAY
is set then 0 is returned. If O_NON_BLOCK is -1 is returned. It seems
that interactive programs such as GDB prefer the O_NDELAY behavior.
We chose O_NONBLOCK because it allows us to make the distinction
between a true EOF and an EOF returned because there is no data
available to be read. */
desc->slave_fd = open (desc->slave_name, O_RDWR | O_NONBLOCK, 0);
#else
desc->slave_fd = open (desc->slave_name, O_RDWR, 0);
#endif
#if defined (sun) || defined (__hpux__)
/* On systems such as Solaris we are using stream. We need to push the right
"modules" in order to get the expected terminal behaviors. Otherwise
functionalities such as termios are not available. */
ioctl (desc->slave_fd, I_PUSH, "ptem");
ioctl (desc->slave_fd, I_PUSH, "ldterm");
ioctl (desc->slave_fd, I_PUSH, "ttcompat");
#endif
#ifdef TIOCSCTTY
/* make the tty the controling terminal */
status = ioctl (desc->slave_fd, TIOCSCTTY, 0);
#endif
/* adjust tty settings */
child_setup_tty (desc->slave_fd);
gvd_setup_winsize (desc, 24, 80); /* To prevent errors in some shells */
/* stdin, stdout and stderr should be now our tty */
dup2 (desc->slave_fd, 0);
dup2 (desc->slave_fd, 1);
dup2 (desc->slave_fd, 2);
if (desc->slave_fd > 2) close (desc->slave_fd);
/* adjust process group settings */
status = setpgid (pid, pid);
status = tcsetpgrp (0, pid);
/* launch the program */
execvp (new_argv[0], new_argv);
/* return the pid */
return pid;
}
/* send_signal_via_characters - Send a characters that will trigger a signal
* in the child process.
*
* PARAMETERS
* desc a pty_desc structure containing terminal information
* int a signal number
* RETURN VALUE
* None
*/
static void
send_signal_via_characters
(pty_desc *desc,
int signal_number)
{
char ctrl_c = 03;
char ctrl_backslash = 28;
char ctrl_Z = 26;
switch (signal_number)
{
case SIGINT:
write (desc->master_fd, &ctrl_c, 1); return;
case SIGQUIT:
write (desc->master_fd, &ctrl_backslash, 1); return;
case SIGTSTP:
write (desc->master_fd, &ctrl_Z, 1); return;
}
}
/* gvd_interrupt_process - interrupt the child process
*
* PARAMETERS
* desc a pty_desc structure
*/
int
gvd_interrupt_process (pty_desc *desc)
{
send_signal_via_characters (desc, SIGINT);
return 0;
}
/* gvd_interrupt_pid - interrupt a process group
*
* PARAMETERS
* pid pid of the process to interrupt
*/
int
gvd_interrupt_pid (int pid)
{
kill (-pid, SIGINT);
return 0;
}
/* gvd_terminate_process - kill a child process
*
* PARAMETERS
* desc pty_desc structure
*/
int gvd_terminate_process (pty_desc *desc) {
return kill (desc->child_pid, SIGKILL);
}
/* gvd_waitpid - wait for the child proces to die
*
* PARAMETERS
* desc pty_desc structure
* RETURN VALUE
* exit status of the child process
*/
int
gvd_waitpid (pty_desc *desc)
{
int status = 0;
waitpid (desc->child_pid, &status, 0);
return WEXITSTATUS (status);
}
/* gvd_tty_supported - Are tty supported ?
*
* RETURN VALUE
* always 1 on Unix systems
*/
int
gvd_tty_supported (void)
{
return 1;
}
/* gvd_free_process - free a pty_desc structure
*
* PARAMETERS
* in out desc: a pty desc structure
*/
void
gvd_free_process (pty_desc** desc)
{
free (*desc);
*desc = NULL;
}
/* gvd_send_header - dummy function. this interface is only used on Windows */
void
gvd_send_header (pty_desc* desc, char header[5], int size, int *ret)
{
*ret = 0;
}
/* gvd_reset_tty - reset line setting
*
* PARAMETERS
* desc: a pty_desc structure
*/
void
gvd_reset_tty (pty_desc* desc)
{
child_setup_tty (desc->master_fd);
}
/* gvd_new_tty - allocate a new terminal
*
* RETURN VALUE
* a pty_desc structure
*/
pty_desc *
gvd_new_tty (void)
{
int status;
pty_desc* desc;
status = allocate_pty_desc (&desc);
child_setup_tty (desc->master_fd);
return desc;
}
/* gvd_close_tty - close a terminal
*
* PARAMETERS
* desc a pty_desc strucure
*/
void gvd_close_tty (pty_desc* desc) {
if (desc->master_fd >= 0) close (desc->master_fd);
if (desc->slave_fd >= 0) close (desc->slave_fd);
}
/* gvd_tty_name - return slave side device name
*
* PARAMETERS
* desc a pty_desc strucure
* RETURN VALUE
* a string
*/
char *
gvd_tty_name (pty_desc* desc) {
return desc->slave_name;
}
/* gvd_tty_name - return master side fd
*
* PARAMETERS
* desc a pty_desc strucure
* RETURN VALUE
* a fd
*/
int
gvd_tty_fd (pty_desc* desc) {
return desc->master_fd;
}
#else /* WIN32 */
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <windows.h>
#define MAXPATHLEN 1024
#define NILP(x) ((x) == 0)
#define Qnil 0
#define report_file_error(x, y) fprintf (stderr, "Error: %s\n", x);
#define INTEGERP(x) 1
#define XINT(x) x
struct GVD_Process {
int pid; /* Number of this process */
PROCESS_INFORMATION procinfo;
HANDLE w_infd, w_outfd;
HANDLE w_forkin, w_forkout;
BOOL usePipe;
};
/* Control whether create_child cause the process to inherit GPS'
error mode setting. The default is 1, to minimize the possibility of
subprocesses blocking when accessing unmounted drives. */
static int Vw32_start_process_inherit_error_mode = 1;
/* Control whether spawnve quotes arguments as necessary to ensure
correct parsing by child process. Because not all uses of spawnve
are careful about constructing argv arrays, we make this behaviour
conditional (off by default, since a similar operation is already done
in g-expect.adb by calling Normalize_Argument). */
static int Vw32_quote_process_args = 0;
static DWORD AbsoluteSeek(HANDLE, DWORD);
static VOID ReadBytes(HANDLE, LPVOID, DWORD);
#define XFER_BUFFER_SIZE 2048
/* This tell if the executable we're about to launch uses a GUI interface. */
/* if we can't determine it, we will return true */
static int
is_gui_app (char *exe)
{
HANDLE hImage;
DWORD bytes;
DWORD iSection;
DWORD SectionOffset;
DWORD CoffHeaderOffset;
DWORD MoreDosHeader[16];
CHAR *file;
size_t nlen;
ULONG ntSignature;
IMAGE_DOS_HEADER image_dos_header;
IMAGE_FILE_HEADER image_file_header;
IMAGE_OPTIONAL_HEADER image_optional_header;
IMAGE_SECTION_HEADER image_section_header;
/*
* Open the reference file.
*/
nlen = strlen (exe);
file = exe;
if (nlen > 2) {
if (exe[0] == '"') {
/* remove quotes */
nlen -= 2;
file = malloc ((nlen + 1) * sizeof (char));
memcpy (file, &exe[1], nlen);
file [nlen] = '\0';
}
}
hImage = CreateFile(file,
GENERIC_READ,
FILE_SHARE_READ,
NULL,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
NULL);
if (file != exe) {
free (file);
}
if (INVALID_HANDLE_VALUE == hImage)
{
report_file_error ("Could not open exe: ", Qnil);
report_file_error (exe, Qnil);
report_file_error ("\n", Qnil);
CloseHandle (hImage);
return -1;
}
/*
* Read the MS-DOS image header.
*/
ReadBytes(hImage, &image_dos_header, sizeof(IMAGE_DOS_HEADER));
if (IMAGE_DOS_SIGNATURE != image_dos_header.e_magic)
{
report_file_error("Sorry, I do not understand this file.\n", Qnil);
CloseHandle (hImage);
return -1;
}
/*
* Read more MS-DOS header. */
ReadBytes(hImage, MoreDosHeader, sizeof(MoreDosHeader));
/*
* Get actual COFF header.
*/
CoffHeaderOffset = AbsoluteSeek(hImage, image_dos_header.e_lfanew) +
sizeof(ULONG);
if (CoffHeaderOffset < 0) {
CloseHandle (hImage);
return -1;
}
ReadBytes (hImage, &ntSignature, sizeof(ULONG));
if (IMAGE_NT_SIGNATURE != ntSignature)
{
report_file_error ("Missing NT signature. Unknown file type.\n", Qnil);
CloseHandle (hImage);
return -1;
}
SectionOffset = CoffHeaderOffset + IMAGE_SIZEOF_FILE_HEADER +
IMAGE_SIZEOF_NT_OPTIONAL_HEADER;
ReadBytes(hImage, &image_file_header, IMAGE_SIZEOF_FILE_HEADER);
/*
* Read optional header.
*/
ReadBytes(hImage,
&image_optional_header,
IMAGE_SIZEOF_NT_OPTIONAL_HEADER);
CloseHandle (hImage);
switch (image_optional_header.Subsystem)
{
case IMAGE_SUBSYSTEM_UNKNOWN:
return 1;
break;
case IMAGE_SUBSYSTEM_NATIVE:
return 1;
break;
case IMAGE_SUBSYSTEM_WINDOWS_GUI:
return 1;
break;
case IMAGE_SUBSYSTEM_WINDOWS_CUI:
return 0;
break;
case IMAGE_SUBSYSTEM_OS2_CUI:
return 0;
break;
case IMAGE_SUBSYSTEM_POSIX_CUI:
return 0;
break;
default:
/* Unknown, return GUI app to be preservative: if yes, it will be
correctly launched, if no, it will be launched, and a console will
be also displayed, which is not a big deal */
return 1;
break;
}
}
static DWORD
AbsoluteSeek (HANDLE hFile, DWORD offset)
{
DWORD newOffset;
newOffset = SetFilePointer (hFile, offset, NULL, FILE_BEGIN);
if (newOffset == 0xFFFFFFFF)
return -1;
else
return newOffset;
}
static VOID
ReadBytes (HANDLE hFile, LPVOID buffer, DWORD size)
{
DWORD bytes;
if (!ReadFile(hFile, buffer, size, &bytes, NULL))
{
size = 0;
return;
}
else if (size != bytes)
{
return;
}
}
static int
nt_spawnve (char *exe, char **argv, char *env, struct GVD_Process *process)
{
STARTUPINFO start;
SECURITY_ATTRIBUTES sec_attrs;
SECURITY_DESCRIPTOR sec_desc;
DWORD flags;
char dir[ MAXPATHLEN ];
int pid;
int is_gui, use_cmd;
char *cmdline, *parg, **targ;
int do_quoting = 0;
char escape_char;
int arglen;
/* we have to do some conjuring here to put argv and envp into the
form CreateProcess wants... argv needs to be a space separated/null
terminated list of parameters, and envp is a null
separated/double-null terminated list of parameters.
Additionally, zero-length args and args containing whitespace or
quote chars need to be wrapped in double quotes - for this to work,
embedded quotes need to be escaped as well. The aim is to ensure
the child process reconstructs the argv array we start with
exactly, so we treat quotes at the beginning and end of arguments
as embedded quotes.
Note that using backslash to escape embedded quotes requires
additional special handling if an embedded quote is already
preceeded by backslash, or if an arg requiring quoting ends with
backslash. In such cases, the run of escape characters needs to be
doubled. For consistency, we apply this special handling as long
as the escape character is not quote.
Since we have no idea how large argv and envp are likely to be we
figure out list lengths on the fly and allocate them. */
if (!NILP (Vw32_quote_process_args))
{
do_quoting = 1;
/* Override escape char by binding w32-quote-process-args to
desired character, or use t for auto-selection. */
if (INTEGERP (Vw32_quote_process_args))
escape_char = XINT (Vw32_quote_process_args);
else
escape_char = '\\';
}
/* do argv... */
arglen = 0;
targ = argv;
while (*targ)
{
char *p = *targ;
int need_quotes = 0;
int escape_char_run = 0;
if (*p == 0)
need_quotes = 1;
for ( ; *p; p++)
{
if (*p == '"')
{
/* allow for embedded quotes to be escaped */
arglen++;
need_quotes = 1;
/* handle the case where the embedded quote is already escaped */
if (escape_char_run > 0)
{
/* To preserve the arg exactly, we need to double the
preceding escape characters (plus adding one to
escape the quote character itself). */
arglen += escape_char_run;
}
}
else if (*p == ' ' || *p == '\t')
{
need_quotes = 1;
}
if (*p == escape_char && escape_char != '"')
escape_char_run++;
else
escape_char_run = 0;
}
if (need_quotes)
{
arglen += 2;
/* handle the case where the arg ends with an escape char - we
must not let the enclosing quote be escaped. */
if (escape_char_run > 0)
arglen += escape_char_run;
}
arglen += strlen (*targ) + 1;
targ++;
}
is_gui = is_gui_app (argv[0]);
use_cmd = FALSE;
if (is_gui == -1) {
/* could not determine application type. Try launching with "cmd /c" */
is_gui = FALSE;
arglen += 7;
use_cmd = TRUE;
}
cmdline = (char*)malloc (arglen + 1);
targ = argv;
parg = cmdline;
if (use_cmd == TRUE) {
strcpy (parg, "cmd /c ");
parg += 7;
}
while (*targ)
{
char * p = *targ;
int need_quotes = 0;
if (*p == 0)
need_quotes = 1;
if (do_quoting)
{
for ( ; *p; p++)
if (*p == ' ' || *p == '\t' || *p == '"')
need_quotes = 1;
}
if (need_quotes)
{
int escape_char_run = 0;
char * first;
char * last;
p = *targ;
first = p;
last = p + strlen (p) - 1;
*parg++ = '"';
for ( ; *p; p++)
{
if (*p == '"')
{
/* double preceding escape chars if any */
while (escape_char_run > 0)
{
*parg++ = escape_char;
escape_char_run--;
}
/* escape all quote chars, even at beginning or end */
*parg++ = escape_char;
}
*parg++ = *p;
if (*p == escape_char && escape_char != '"')
escape_char_run++;
else
escape_char_run = 0;
}
/* double escape chars before enclosing quote */
while (escape_char_run > 0)
{
*parg++ = escape_char;
escape_char_run--;
}
*parg++ = '"';
}
else
{
strcpy (parg, *targ);
parg += strlen (*targ);
}
*parg++ = ' ';
targ++;
}
*--parg = '\0';
memset (&start, 0, sizeof (start));
start.cb = sizeof (start);
if (process->usePipe == TRUE) {
start.dwFlags = STARTF_USESTDHANDLES;
start.hStdInput = process->w_forkin;
start.hStdOutput = process->w_forkout;
/* child's stderr is always redirected to outfd */
start.hStdError = process->w_forkout;
} else {
start.dwFlags = STARTF_USESTDHANDLES;
/* We only need to redirect stderr/stdout here. Stdin will be forced to
the spawned process console by explaunch */
start.hStdInput = NULL;
start.hStdOutput = process->w_forkout;
start.hStdError = process->w_forkout;
}
/* Explicitly specify no security */
if (!InitializeSecurityDescriptor (&sec_desc, SECURITY_DESCRIPTOR_REVISION))
goto EH_Fail;
if (!SetSecurityDescriptorDacl (&sec_desc, TRUE, NULL, FALSE))
goto EH_Fail;
sec_attrs.nLength = sizeof (sec_attrs);
sec_attrs.lpSecurityDescriptor = &sec_desc;
sec_attrs.bInheritHandle = FALSE;
/* creating a new console allow easier close. Do not use
CREATE_NEW_PROCESS_GROUP as this results in disabling Ctrl+C */
flags = CREATE_NEW_CONSOLE;
if (NILP (Vw32_start_process_inherit_error_mode))
flags |= CREATE_DEFAULT_ERROR_MODE;
/* if app is not a gui application, hide the console */
if (is_gui == FALSE) {
start.dwFlags |= STARTF_USESHOWWINDOW;
start.wShowWindow = SW_HIDE;
}
/* Set initial directory to null character to use current directory */
if (!CreateProcess (NULL, cmdline, &sec_attrs, NULL, TRUE,
flags, env, NULL, &start, &process->procinfo))
goto EH_Fail;
pid = (int) process->procinfo.hProcess;
process->pid=pid;
return pid;
EH_Fail:
return -1;
}
/***********************
** gvd_send_header ()
***********************/
#define EXP_SLAVE_CREATE 'c'
#define EXP_SLAVE_KEY 'k'
#define EXP_SLAVE_MOUSE 'm'
#define EXP_SLAVE_WRITE 'w'
#define EXP_SLAVE_KILL 'x'
#define EXP_KILL_TERMINATE 0x1
#define EXP_KILL_CTRL_C 0x2
#define EXP_KILL_CTRL_BREAK 0x4
void
gvd_send_header (struct GVD_Process* p, char header[5], int size, int *ret)
{
if (p->usePipe == FALSE) {
header[0] = EXP_SLAVE_WRITE;
header[1] = size & 0xff;
header[2] = (size & 0xff00) >> 8;
header[3] = (size & 0xff0000) >> 16;
header[4] = (size & 0xff000000) >> 24;
*ret = 1;
} else {
*ret = 0;
}
}
/********************************
** gvd_setup_communication ()
********************************/
int
gvd_setup_communication (struct GVD_Process** process_out) /* output param */
{
struct GVD_Process* process;
process = (struct GVD_Process*)malloc (sizeof (struct GVD_Process));
ZeroMemory (process, sizeof (struct GVD_Process));
*process_out = process;
return 0;
}
#define EXP_PIPE_BASENAME "\\\\.\\pipe\\ExpectPipe"
int
gvd_setup_child_communication (struct GVD_Process* process, char** argv,
int Use_Pipes)
{
int cpid;
HANDLE parent;
SECURITY_ATTRIBUTES sec_attrs;
char slavePath [MAX_PATH];
char **nargv;
int argc;
int i;
char pipeNameIn[100];
HANDLE hSlaveInDrv = NULL; /* Handle to communicate with slave driver */
parent = GetCurrentProcess ();
/* Set inheritance for the pipe handles */
sec_attrs.nLength = sizeof (SECURITY_ATTRIBUTES);
sec_attrs.bInheritHandle = TRUE;
sec_attrs.lpSecurityDescriptor = NULL;
if (Use_Pipes) {
/* Create in and out pipes */
if (!CreatePipe (&process->w_forkin, &process->w_infd, &sec_attrs, 0))
report_file_error ("Creation of child's IN handle", Qnil);
if (!CreatePipe (&process->w_outfd, &process->w_forkout, &sec_attrs, 0))
report_file_error ("Creation of child's OUT handle", Qnil);
/* Do not inherit the parent's side of the pipes */
SetHandleInformation (&process->w_infd, HANDLE_FLAG_INHERIT, 0);
SetHandleInformation (&process->w_outfd, HANDLE_FLAG_INHERIT, 0);
/* use native argv */
nargv = argv;
process->usePipe = TRUE;
} else {
static int pipeNameId = 0;
process->w_infd = NULL;
/* We create a named pipe for Input, as we handle input by sending special
commands to the explaunch process, that uses it to feed the actual input
of the process */
sprintf(pipeNameIn, "%sIn%08x_%08x", EXP_PIPE_BASENAME,
GetCurrentProcessId(), pipeNameId);
pipeNameId++;
hSlaveInDrv = CreateNamedPipe(pipeNameIn,
PIPE_ACCESS_OUTBOUND,
PIPE_TYPE_BYTE | PIPE_WAIT, 1, 8192, 8192,
20000, NULL);
if (hSlaveInDrv == NULL) goto end;
if (!CreatePipe (&process->w_outfd, &process->w_forkout, &sec_attrs, 0))
report_file_error ("Creation of child's OUT handle", Qnil);
if (SearchPath (NULL, "explaunch.exe", NULL,
MAX_PATH, slavePath, NULL) == 0) goto end;
for (argc=0; argv[argc] != NULL; argc++) ;
nargv = (char **) malloc (sizeof (char*) * (argc + 3));
nargv[0] = slavePath;
nargv[1] = pipeNameIn;
for (i = 0; i <= argc; i++) nargv[i + 2] = argv[i];
process->usePipe = FALSE;
}
/* Spawn the child. */
cpid = nt_spawnve (nargv[0], nargv, NULL, process);
/* close the duplicated handles passed to the child */
CloseHandle (process->w_forkout);
if (process->usePipe == TRUE) {
CloseHandle (process->w_forkin);
} else {
UCHAR buf[8]; /* enough space for child status info */
DWORD count;
BOOL bRet;
DWORD dwRet;
/*
* Wait for connection with the slave driver
*/
bRet = ConnectNamedPipe(hSlaveInDrv, NULL);
if (bRet == FALSE) {
dwRet = GetLastError();
if (dwRet == ERROR_PIPE_CONNECTED) {
;
} else {
goto end;
}
}
process->w_infd = hSlaveInDrv;
/*
* wait for slave driver to initialize before allowing user to send to it
*/
bRet = ReadFile(process->w_outfd, buf, 8, &count, NULL);
if (bRet == FALSE) {
cpid = -1;
}
dwRet = buf[0] | (buf[1] << 8) | (buf[2] << 16) | (buf[3] << 24);
if (dwRet != 0) {
cpid = -1;
}
cpid = buf[4] | (buf[5] << 8) | (buf[6] << 16) | (buf[7] << 24);
process->pid = cpid;
}
if (cpid == -1)
/* An error occurred while trying to spawn the process. */
report_file_error ("Spawning child process", Qnil);
return cpid;
end:
if (hSlaveInDrv != NULL)
CloseHandle (hSlaveInDrv);
return -1;
}
int
gvd_setup_parent_communication
(struct GVD_Process* process, int* in, int* out, int* err, int* pid)
{
*in = _open_osfhandle ((long) process->w_infd, 0);
*out = _open_osfhandle ((long) process->w_outfd, 0);
/* child's stderr is always redirected to outfd */
*err = *out;
*pid = process->pid;
}
typedef struct _child_process
{
HWND hwnd;
PROCESS_INFORMATION *procinfo;
} child_process;
/* The major and minor versions of NT. */
static int w32_major_version;
static int w32_minor_version;
/* Distinguish between Windows NT and Windows 95. */
static enum {OS_UNKNOWN, OS_WIN95, OS_NT} os_subtype = OS_UNKNOWN;
/* Cache information describing the NT system for later use. */
static void
cache_system_info (void)
{
union
{
struct info
{
char major;
char minor;
short platform;
} info;
DWORD data;
} version;
/* Cache the version of the operating system. */
version.data = GetVersion ();
w32_major_version = version.info.major;
w32_minor_version = version.info.minor;
if (version.info.platform & 0x8000)
os_subtype = OS_WIN95;
else
os_subtype = OS_NT;
}
static BOOL CALLBACK
find_child_console (HWND hwnd, child_process * cp)
{
DWORD thread_id;
DWORD process_id;
thread_id = GetWindowThreadProcessId (hwnd, &process_id);
if (process_id == cp->procinfo->dwProcessId)
{
char window_class[32];
GetClassName (hwnd, window_class, sizeof (window_class));
if (strcmp (window_class,
(os_subtype == OS_WIN95)
? "tty"
: "ConsoleWindowClass") == 0)
{
cp->hwnd = hwnd;
return FALSE;
}
}
/* keep looking */
return TRUE;
}
int
gvd_interrupt_process (struct GVD_Process* p)
{
char buf[2];
DWORD written;
BOOL bret;
if (p->usePipe == TRUE) {
bret = FALSE;
} else {
buf[0] = EXP_SLAVE_KILL;
buf[1] = EXP_KILL_CTRL_C;
bret = WriteFile (p->w_infd, buf, 2, &written, NULL);
}
if (bret == FALSE) {
return gvd_interrupt_pid (p->procinfo.dwProcessId);
}
return 0;
}
int
gvd_interrupt_pid (int pid)
{
volatile child_process cp;
int rc = 0;
cp.procinfo = (LPPROCESS_INFORMATION) malloc (sizeof (PROCESS_INFORMATION));
cp.procinfo->dwProcessId = pid;
if (os_subtype == OS_UNKNOWN)
cache_system_info ();
/* Try to locate console window for process. */
EnumWindows ((WNDENUMPROC) find_child_console, (LPARAM) &cp);
if (cp.hwnd)
{
BYTE control_scan_code = (BYTE) MapVirtualKey (VK_CONTROL, 0);
/* Retrieve Ctrl-C scancode */
BYTE vk_break_code = 'C';
BYTE break_scan_code = (BYTE) MapVirtualKey (vk_break_code, 0);
HWND foreground_window;
foreground_window = GetForegroundWindow ();
if (foreground_window)
{
/* NT 5.0, and apparently also Windows 98, will not allow
a Window to be set to foreground directly without the
user's involvement. The workaround is to attach
ourselves to the thread that owns the foreground
window, since that is the only thread that can set the
foreground window. */
DWORD foreground_thread, child_thread;
foreground_thread =
GetWindowThreadProcessId (foreground_window, NULL);
if (foreground_thread == GetCurrentThreadId ()
|| !AttachThreadInput (GetCurrentThreadId (),
foreground_thread, TRUE))
foreground_thread = 0;
child_thread = GetWindowThreadProcessId (cp.hwnd, NULL);
if (child_thread == GetCurrentThreadId ()
|| !AttachThreadInput (GetCurrentThreadId (),
child_thread, TRUE))
child_thread = 0;
/* Set the foreground window to the child. */
if (SetForegroundWindow (cp.hwnd))
{
/* Generate keystrokes as if user had typed Ctrl-Break or
Ctrl-C. */
keybd_event (VK_CONTROL, control_scan_code, 0, 0);
keybd_event (vk_break_code, break_scan_code,
(vk_break_code == 'C' ? 0 : KEYEVENTF_EXTENDEDKEY), 0);
keybd_event (vk_break_code, break_scan_code,
(vk_break_code == 'C' ? 0 : KEYEVENTF_EXTENDEDKEY)
| KEYEVENTF_KEYUP, 0);
keybd_event (VK_CONTROL, control_scan_code, KEYEVENTF_KEYUP, 0);
/* Sleep for a bit to give time for the main frame to respond
to focus change events. */
Sleep (100);
SetForegroundWindow (foreground_window);
}
/* Detach from the foreground and child threads now that
the foreground switching is over. */
if (foreground_thread)
AttachThreadInput (GetCurrentThreadId (), foreground_thread, FALSE);
if (child_thread)
AttachThreadInput (GetCurrentThreadId (), child_thread, FALSE);
}
}
/* Ctrl-Break is NT equivalent of SIGINT. */
else if (!GenerateConsoleCtrlEvent
(CTRL_BREAK_EVENT, cp.procinfo->dwProcessId))
{
errno = EINVAL;
rc = -1;
}
free (cp.procinfo);
return rc;
}
/* kill a process, as this implementation use CreateProcess on Win32 we need
to use Win32 TerminateProcess API */
int
gvd_terminate_process (struct GVD_Process* p)
{
char buf[2];
DWORD written;
BOOL bret;
if (p->usePipe == TRUE) {
bret = FALSE;
} else {
buf[0] = EXP_SLAVE_KILL;
buf[1] = EXP_KILL_TERMINATE;
bret = WriteFile (p->w_infd, buf, 2, &written, NULL);
}
if (bret == FALSE) {
if (!TerminateProcess (p->procinfo.hProcess, 1))
return -1;
else
return 0;
} else
return 0;
}
/* wait for process pid to terminate and return the process status. This
implementation is different from the adaint.c one for Windows as it uses
the Win32 API instead of the C one. */
int
gvd_waitpid (struct GVD_Process* p)
{
DWORD exitcode;
DWORD res;
HANDLE proc_hand = p->procinfo.hProcess;
res = WaitForSingleObject (proc_hand, 0);
GetExitCodeProcess (proc_hand, &exitcode);
CloseHandle (p->procinfo.hThread);
CloseHandle (p->procinfo.hProcess);
/* No need to close the handles: they were closed on the ada side */
return (int) exitcode;
}
/********************************
** gvd_free_process ()
********************************/
void
gvd_free_process (struct GVD_Process** process)
{
free (*process);
*process = NULL;
}
/* TTY handling */
typedef struct {
int tty_fd; /* descriptor for the tty */
char tty_name[24]; /* Name of TTY device */
} TTY_Handle;
int
gvd_tty_supported (void)
{
return 0;
}
/* Return the tty name associated with p */
char *
gvd_tty_name (TTY_Handle* t)
{
return t->tty_name;
}
int
gvd_tty_fd (TTY_Handle* t)
{
return t->tty_fd;
}
TTY_Handle*
gvd_new_tty (void)
{
return (TTY_Handle*)0;
}
void
gvd_reset_tty (TTY_Handle* t)
{
return;
}
void
gvd_close_tty (TTY_Handle* t)
{
free (t);
}
void
gvd_setup_winsize (void *desc, int rows, int columns)
{
}
#endif /* WIN32 */
|