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
|
#ifdef __VMS
#include "links.h"
#define __NEW_STARLET 1
#include <starlet.h>
#include <iodef.h>
#include <ssdef.h>
#include <stsdef.h>
#include <descrip.h>
#include <dvidef.h>
#include <ttdef.h>
#include <tt2def.h>
#include <lib$routines.h>
#include <libdef.h>
#include <libclidef.h>
#if defined(HAVE_OPENSSL) && !defined(OPENSSL_NO_SHA) && !defined(OPENSSL_NO_SHA1)
#include <openssl/sha.h>
#define USE_SHA
#endif
#ifdef __VAX
struct _iosb {
unsigned short iosb$w_status;
unsigned short iosb$w_bcnt;
unsigned iosb$l_dev_depend;
};
struct _generic_64 {
unsigned gen64$l_longword[2];
};
struct _va_range {
void *va_range$ps_start_va;
void *va_range$ps_end_va;
};
#else
#include <iosbdef.h>
#include <gen64def.h>
#include <vadef.h>
#include <va_rangedef.h>
#endif
#include <pthread.h>
#include <tis.h>
#ifdef HAVE_SYS_IOCTL_H
#include <sys/ioctl.h>
#endif
struct tt_mode {
unsigned char class;
unsigned char mode;
unsigned short width;
unsigned basic;
unsigned extended;
};
#ifndef OPENVMS_64BIT
#define va_range _va_range
#define links_expreg sys$expreg
#define links_cretva sys$cretva
#define links_deltva sys$deltva
#else
struct va_range {
void *va_range$ps_start_va;
void *va_range$ps_end_va;
};
static int links_expreg(size_t pagelets, struct va_range *retadr, unsigned ignore_mode, char ignore_reg)
{
__int64 region_int = VA$C_P2;
struct _generic_64 region;
unsigned __int64 len;
int vms_ret;
memcpy(®ion, ®ion_int, 8);
vms_ret = sys$expreg_64(®ion, pagelets << 9, 0, 0, &retadr->va_range$ps_start_va, &len);
retadr->va_range$ps_end_va = (unsigned char *)retadr->va_range$ps_start_va + len - 1;
return vms_ret;
}
static int links_cretva(struct va_range *creadr, struct va_range *retadr, unsigned int ignore_mode)
{
__int64 region_int = VA$C_P2;
struct _generic_64 region;
unsigned __int64 len;
int vms_ret;
memcpy(®ion, ®ion_int, 8);
vms_ret = sys$cretva_64(®ion, creadr->va_range$ps_start_va, (unsigned char *)creadr->va_range$ps_end_va - (unsigned char *)creadr->va_range$ps_start_va + 1, 0, 0, &retadr->va_range$ps_start_va, &len);
retadr->va_range$ps_end_va = (unsigned char *)retadr->va_range$ps_start_va + len - 1;
return vms_ret;
}
static int links_deltva(struct va_range *deladr, struct va_range *retadr, unsigned int ignore_mode)
{
__int64 region_int = VA$C_P2;
struct _generic_64 region;
unsigned __int64 len;
int vms_ret;
memcpy(®ion, ®ion_int, 8);
vms_ret = sys$deltva_64(®ion, deladr->va_range$ps_start_va, (unsigned char *)deladr->va_range$ps_end_va - (unsigned char *)deladr->va_range$ps_start_va + 1, 0, &retadr->va_range$ps_start_va, &len);
retadr->va_range$ps_end_va = (unsigned char *)retadr->va_range$ps_start_va + len - 1;
return vms_ret;
}
#endif
/* reimplement pipes because sockets + select have too big latency */
#define VMS_VIRTUAL_PIPE
/* use a special thread for select processing (if not defined, sockets
are polled with a dynamic timer) */
#define VMS_SELECT_THREAD
#define VIRTUAL_PIPE_SIZE 512
#define GETTIMEOFDAY_POOL 256
/*#define TEST_WAKE_BUG*/
/*#define TRACE_PIPES*/
#undef read
#undef write
#undef pipe
#undef close
#undef select
#if !defined(VMS_VIRTUAL_PIPE) && defined(VMS_SELECT_THREAD)
#undef VMS_SELECT_THREAD
#endif
static void vms_fatal_exit(char *m, ...)
{
va_list l;
va_start(l, m);
fprintf(stderr, "\n");
vfprintf(stderr, cast_const_char m, l);
fprintf(stderr, "%c\n", (unsigned char)7);
fflush(stderr);
va_end(l);
exit(RET_FATAL);
}
void portable_sleep(unsigned msec)
{
struct timespec tv;
int rs;
tv.tv_sec = msec / 1000;
tv.tv_nsec = msec % 1000 * 1000000;
if (!msec) tv.tv_nsec = 1;
rs = pthread_delay_np(&tv);
if (rs && rs != EINTR)
vms_fatal_exit("pthread_delay_np failed: %d", rs);
}
static $DESCRIPTOR (output_channel_desc, "SYS$OUTPUT:");
void get_terminal_size(int *x, int *y)
{
int ret;
int x_code = DVI$_DEVBUFSIZ;
int y_code = DVI$_TT_PAGE;
unsigned long result;
*x = 80;
*y = 24;
ret = lib$getdvi(&x_code, 0, &output_channel_desc, &result, 0, 0);
if ($VMS_STATUS_SUCCESS(ret) && result) *x = result;
ret = lib$getdvi(&y_code, 0, &output_channel_desc, &result, 0, 0);
if ($VMS_STATUS_SUCCESS(ret) && result) *y = result;
}
static $DESCRIPTOR (display_desc, "DECW$DISPLAY");
int is_xterm(void)
{
static int xt = -1;
if (xt == -1) {
xt = $VMS_STATUS_SUCCESS(lib$get_logical(&display_desc, NULL, NULL, NULL, NULL, NULL, NULL, NULL));
}
return xt;
}
void get_path_to_exe(void)
{
path_to_exe = cast_uchar "links";
}
static int io_raw = -1;
static int input_handle = -1;
static $DESCRIPTOR (input_channel_desc, "SYS$INPUT:");
static unsigned short input_channel;
static pthread_mutex_t io_mutex;
static pthread_mutex_t cancel_mutex;
static volatile struct timeval gettimeofday_pool[GETTIMEOFDAY_POOL];
static volatile unsigned gettimeofday_clock = 0;
#define INPUT_BUFFER_SIZE 16
static void vms_input_thread(void *n, int h)
{
unsigned char buffer[INPUT_BUFFER_SIZE];
int buffer_start = 0;
int buffer_end = 0;
unsigned ef;
int vms_ret;
#ifndef VMS_VIRTUAL_PIPE
/* VMS is buggy - if high priority thread blocks in write,
no low priority threads have a chance to run.
So, as a workaround, we set the socket nonblocking. */
set_nonblock(h);
#endif
vms_ret = lib$get_ef(&ef);
if (!$VMS_STATUS_SUCCESS(vms_ret))
vms_fatal_exit("lib$get_ef failed: %d", vms_ret);
while (1) {
int ret;
int count;
struct _iosb iosb;
ret = pthread_mutex_lock(&cancel_mutex);
if (ret)
vms_fatal_exit("pthread_mutex_lock failed: %d", ret);
ret = pthread_mutex_unlock(&cancel_mutex);
if (ret)
vms_fatal_exit("pthread_mutex_unlock failed: %d", ret);
ret = pthread_mutex_lock(&io_mutex);
if (ret)
vms_fatal_exit("pthread_mutex_lock failed: %d", ret);
vms_ret = sys$clref(ef);
if (!$VMS_STATUS_SUCCESS(vms_ret))
vms_fatal_exit("sys$clref failed: %d", vms_ret);
vms_ret = sys$qio(ef, input_channel, IO$_READVBLK | IO$M_NOECHO | IO$M_NOFILTR, &iosb, tis_io_complete, 0, buffer + buffer_end, 1, 0, 0, 0, 0);
if ($VMS_STATUS_SUCCESS(vms_ret)) {
if (!iosb.iosb$w_status) {
if (buffer_start != buffer_end) {
hard_write(h, buffer + buffer_start, buffer_end - buffer_start);
buffer_start = buffer_end;
}
}
vms_ret = tis_synch(ef, &iosb);
}
ret = pthread_mutex_unlock(&io_mutex);
if (ret)
vms_fatal_exit("pthread_mutex_unlock failed: %d", ret);
if (vms_ret == SS$_CANCEL ||
vms_ret == SS$_ABORT)
continue;
if (!$VMS_STATUS_SUCCESS(vms_ret))
vms_fatal_exit("sys$qio failed: %d", vms_ret);
if (!$VMS_STATUS_SUCCESS(iosb.iosb$w_status) &&
iosb.iosb$w_status != SS$_PARTESCAPE &&
iosb.iosb$w_status != SS$_DATAOVERUN &&
iosb.iosb$w_status != SS$_CANCEL &&
iosb.iosb$w_status != SS$_ABORT)
vms_fatal_exit("IO$_READVBLK failed: %d, %d", (int)iosb.iosb$w_status, (int)iosb.iosb$w_bcnt);
count = iosb.iosb$w_bcnt + (iosb.iosb$l_dev_depend >> 16);
if (count == 1) {
buffer_end++;
if (buffer_start) {
memmove(buffer, buffer + buffer_start, buffer_end - buffer_start);
buffer_end -= buffer_start;
buffer_start = 0;
}
if (buffer_end == INPUT_BUFFER_SIZE) {
hard_write(h, buffer + buffer_start, buffer_end - buffer_start);
buffer_start = buffer_end = 0;
}
}
}
}
static void tty_passthru_mode(int enable)
{
struct _iosb iosb;
struct tt_mode mode;
int ret;
ret = sys$qiow(0, input_channel, IO$_SENSEMODE, &iosb, 0, 0, &mode, sizeof(mode), 0, 0, 0, 0);
if (!$VMS_STATUS_SUCCESS(ret)) {
error("IO$_SENSEMODE failed: %d", ret);
return;
}
if (enable) mode.extended |= TT2$M_PASTHRU;
else mode.extended &= ~TT2$M_PASTHRU;
ret = sys$qiow(0, input_channel, IO$_SETMODE, &iosb, 0, 0, &mode, sizeof(mode), 0, 0, 0, 0);
if (!$VMS_STATUS_SUCCESS(ret)) {
error("IO$_SETMODE failed: %d", ret);
return;
}
}
int setraw(int ctl, int save)
{
int ret;
if (io_raw > 0)
return 0;
do_signal(SIGINT, SIG_IGN);
ret = sys$assign(&input_channel_desc, &input_channel, 0, NULL);
if (!$VMS_STATUS_SUCCESS(ret))
vms_fatal_exit("sys$assign failed: %d", ret);
io_raw = 1;
tty_passthru_mode(1);
ret = pthread_mutex_unlock(&io_mutex);
if (ret)
vms_fatal_exit("pthread_mutex_unlock failed: %d", ret);
return 0;
}
void setcooked(int ctl)
{
int ret;
if (io_raw <= 0)
return;
ret = pthread_mutex_lock(&cancel_mutex);
if (ret)
vms_fatal_exit("pthread_mutex_lock failed: %d", ret);
clear_events(input_handle, 1);
while ((ret = pthread_mutex_trylock(&io_mutex))) {
if (ret != EBUSY)
vms_fatal_exit("pthread_mutex_trylock failed: %d", ret);
ret = sys$cancel(input_channel);
if (!$VMS_STATUS_SUCCESS(ret))
vms_fatal_exit("sys$cancel failed: %d", ret);
clear_events(input_handle, 1);
portable_sleep(0);
}
ret = pthread_mutex_unlock(&cancel_mutex);
if (ret)
vms_fatal_exit("pthread_mutex_unlock failed: %d", ret);
tty_passthru_mode(0);
io_raw = 0;
ret = sys$dassgn(input_channel);
if (!$VMS_STATUS_SUCCESS(ret))
vms_fatal_exit("sys$dassgn failed: %d", ret);
}
int get_input_handle(void)
{
int ret;
if (input_handle >= 0)
return input_handle;
ret = pthread_mutex_init(&io_mutex, NULL);
if (ret)
vms_fatal_exit("pthread_mutex_init failed: %d", ret);
ret = pthread_mutex_init(&cancel_mutex, NULL);
if (ret)
vms_fatal_exit("pthread_mutex_init failed: %d", ret);
ret = pthread_mutex_lock(&io_mutex);
if (ret)
vms_fatal_exit("pthread_mutex_lock failed: %d", ret);
vms_thread_high_priority = 1;
input_handle = start_thread(vms_input_thread, NULL, 0, 0);
if (input_handle == -1)
vms_fatal_exit("unable to start keyboard thread");
vms_thread_high_priority = 0;
return input_handle;
}
#if defined(GRDRV_X)
static int x11_ef = -1;
static int x11_pipe = -1;
static void vms_x11_thread(void *n, int h)
{
int ret;
set_nonblock(h);
while (1) {
ret = sys$clref(x11_ef);
if (!$VMS_STATUS_SUCCESS(ret))
vms_fatal_exit("sys$clref failed: %d", ret);
EINTRLOOP(ret, (int)vms_write(h, "", 1));
ret = sys$waitfr(x11_ef);
if (!$VMS_STATUS_SUCCESS(ret))
vms_fatal_exit("sys$waitfr failed: %d", ret);
}
}
int vms_x11_fd(int ef)
{
if (x11_pipe >= 0) {
if (ef != x11_ef) vms_fatal_exit("requesting multiple event flags: %d, %d", x11_ef, ef);
return x11_pipe;
}
x11_ef = ef;
x11_pipe = start_thread(vms_x11_thread, NULL, 0, 0);
if (x11_pipe == -1)
vms_fatal_exit("unable to start Xwindow event thread");
set_nonblock(x11_pipe);
return x11_pipe;
}
#endif
#if !defined(VMS_VIRTUAL_PIPE) || defined(VMS_SELECT_THREAD)
static int vms_socketpair(int *fd)
{
#if defined(HAVE_SOCKETPAIR)
int r;
EINTRLOOP(r, socketpair(AF_INET, SOCK_STREAM, 0, fd));
return r;
#else
#define PIPE_RETRIES 10
int rs;
int s1, s2, s3;
socklen_t l;
struct sockaddr_in sa1, sa2;
int retry_count = 0;
again:
s1 = c_socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
if (s1 < 0)
goto err0;
s2 = c_socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
if (s2 < 0)
goto err1;
memset(&sa1, 0, sizeof(sa1));
sa1.sin_family = AF_INET;
sa1.sin_port = htons(0);
sa1.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
EINTRLOOP(rs, bind(s1, (struct sockaddr *)&sa1, sizeof(sa1)));
if (rs)
goto err2;
l = sizeof(sa2);
EINTRLOOP(rs, getsockname(s1, (struct sockaddr *)&sa1, &l));
if (rs)
goto err2;
EINTRLOOP(rs, listen(s1, 1));
if (rs)
goto err2;
EINTRLOOP(rs, connect(s2, (struct sockaddr *)&sa1, sizeof(sa1)));
if (rs)
goto err2;
l = sizeof(sa1);
EINTRLOOP(rs, getsockname(s2, (struct sockaddr *)&sa1, &l));
if (rs)
goto err2;
l = sizeof(sa2);
s3 = c_accept(s1, (struct sockaddr *)&sa2, &l);
if (s3 < 0)
goto err2;
if (sa1.sin_addr.s_addr != sa2.sin_addr.s_addr ||
sa1.sin_port != sa2.sin_port) {
errno = EINVAL;
goto err2;
}
EINTRLOOP(rs, close(s1));
fd[0] = s2;
fd[1] = s3;
return 0;
err2:
EINTRLOOP(rs, close(s2));
err1:
EINTRLOOP(rs, close(s1));
err0:
if (++retry_count > PIPE_RETRIES) return -1;
portable_sleep(100);
goto again;
#endif
}
#endif
#ifdef VMS_VIRTUAL_PIPE
static pthread_mutex_t pipe_mutex;
static pthread_cond_t pipe_cond;
static void pipe_lock(void)
{
int ret;
ret = pthread_mutex_lock(&pipe_mutex);
if (ret)
vms_fatal_exit("pthread_mutex_lock failed: %d", ret);
}
static void pipe_unlock(void)
{
int ret;
ret = pthread_mutex_unlock(&pipe_mutex);
if (ret)
vms_fatal_exit("pthread_unmutex_lock failed: %d", ret);
}
static void pipe_unlock_wait_cond(pthread_cond_t *cond)
{
int ret;
ret = pthread_cond_wait(cond, &pipe_mutex);
if (ret && ret != EINTR)
vms_fatal_exit("pthread_cond_wait failed: %d", ret);
}
static void pipe_unlock_wait(void)
{
pipe_unlock_wait_cond(&pipe_cond);
}
static int pipe_unlock_wait_time(struct timespec *ts)
{
int ret;
ret = pthread_cond_timedwait(&pipe_cond, &pipe_mutex, ts);
if (ret && ret != EINTR && ret != ETIMEDOUT)
vms_fatal_exit("pthread_cond_timedwait failed: %d", ret);
return ret == ETIMEDOUT;
}
static void pipe_wake_cond(pthread_cond_t *cond)
{
int ret;
ret = pthread_cond_broadcast(cond);
if (ret)
vms_fatal_exit("pthread_cond_broadcast failed: %d", ret);
}
static void pipe_wake(void)
{
pipe_wake_cond(&pipe_cond);
}
#include "vpipe.inc"
static void get_abstime(time_t sec, unsigned usec, struct timespec *ts)
{
#if 0
int ret;
struct timespec exp;
exp.tv_sec = sec;
exp.tv_nsec = usec * 1000;
ret = pthread_get_expiration_np(&exp, ts);
if (ret)
vms_fatal_exit("pthread_get_expiration_np failed: %d", ret);
#else
int ret;
struct timeval tv;
ret = gettimeofday(&tv, NULL);
if (ret)
vms_fatal_exit("gettimeofday failed: %d", errno);
tv.tv_sec += sec;
tv.tv_usec += usec;
if (tv.tv_usec >= 1000000) {
tv.tv_usec -= 1000000;
tv.tv_sec++;
}
{
unsigned c = gettimeofday_clock;
if (c >= GETTIMEOFDAY_POOL) c = 0;
gettimeofday_clock = c;
gettimeofday_pool[c].tv_sec = (unsigned long)gettimeofday_pool[c].tv_sec * 11 + (unsigned long)tv.tv_sec;
gettimeofday_pool[c].tv_usec = (unsigned long)gettimeofday_pool[c].tv_usec * 11 + (unsigned long)tv.tv_usec;
}
ts->tv_sec = tv.tv_sec;
ts->tv_nsec = tv.tv_usec * 1000;
#endif
}
static int check_fd(int fd, int what)
{
fd_set fds;
struct timeval tv = {0, 0};
int rs;
FD_ZERO(&fds);
FD_SET(fd, &fds);
EINTRLOOP(rs, select(fd + 1,
what == 0 ? &fds : NULL,
what == 1 ? &fds : NULL,
what == 2 ? &fds : NULL,
&tv));
if (rs < 0) vms_fatal_exit("select for %d/%d write failed: %d", fd, what, errno);
return rs;
}
#ifdef VMS_SELECT_THREAD
static pthread_cond_t select_cond;
static int select_thread_signal[2];
static int select_set_max;
static fd_set select_set_read;
static fd_set select_set_write;
static fd_set select_set_exception;
static fd_set add_set_read;
static fd_set add_set_write;
static fd_set add_set_exception;
static fd_set remove_set;
static fd_set rs, ws, es;
static void add_to_thread_set(int fd, fd_set *s)
{
FD_SET(fd, s);
if (fd >= select_set_max)
select_set_max = fd + 1;
}
static void vms_select_thread(void *p, int n)
{
int should_wake = 0;
pipe_lock();
FD_ZERO(&rs);
FD_ZERO(&ws);
FD_ZERO(&es);
while (1) {
int i;
int r;
int need_select = 0;
int new_max = 0;
for (i = 0; i < select_set_max; i++) {
int set;
if (FD_ISSET(i, &add_set_read)) {
FD_CLR(i, &add_set_read);
FD_SET(i, &select_set_read);
}
if (FD_ISSET(i, &add_set_write)) {
FD_CLR(i, &add_set_write);
FD_SET(i, &select_set_write);
}
if (FD_ISSET(i, &add_set_exception)) {
FD_CLR(i, &add_set_exception);
FD_SET(i, &select_set_exception);
}
if (FD_ISSET(i, &remove_set)) {
FD_CLR(i, &remove_set);
#ifndef TEST_WAKE_BUG
FD_CLR(i, &select_set_read);
FD_CLR(i, &select_set_write);
FD_CLR(i, &select_set_exception);
#endif
should_wake = 1;
}
set = 0;
if (FD_ISSET(i, &select_set_read)) {
set = 1;
FD_SET(i, &rs);
}
if (FD_ISSET(i, &select_set_write)) {
set = 1;
FD_SET(i, &ws);
}
if (FD_ISSET(i, &select_set_exception)) {
set = 1;
FD_SET(i, &es);
}
if (set && i >= new_max)
new_max = i + 1;
if (set && i != select_thread_signal[0])
need_select = 1;
}
select_set_max = new_max;
if (!need_select) {
if (should_wake) {
pipe_wake();
should_wake = 0;
}
pipe_unlock_wait_cond(&select_cond);
clear_events(select_thread_signal[0], 0);
} else {
pipe_unlock();
if (should_wake) {
#ifdef TEST_WAKE_BUG
fprintf(stderr, "wake 1. ");
#endif
pipe_wake();
#ifdef TEST_WAKE_BUG
fprintf(stderr, "wake 2. ");
#endif
should_wake = 0;
}
/* It is needed to sleep here with pthread_yield_np() or
portable_sleep(0), otherwise some bug in decthreads
is triggered and the main thread isn't woken up.
tis_io_complete apparently seems to fix the bug too,
so we do a dummy syscall that calls tis_io_complete
as an AST */
{
struct _generic_64 priv;
memset(&priv, 0, sizeof priv);
sys$check_privilegew(0, &priv, NULL, 0, NULL, NULL, tis_io_complete, 0);
}
/*tis_io_complete();*/
/*fprintf(stderr, "time1 %d. ", get_time());
pthread_yield_np();
portable_sleep(0);
fprintf(stderr, "time2 %d. ", get_time());*/
#ifdef TEST_WAKE_BUG
fprintf(stderr, "wake 3. ");
#endif
EINTRLOOP(r, select(select_set_max, &rs, &ws, &es, NULL));
#ifdef TEST_WAKE_BUG
fprintf(stderr, "wake 4. ");
#endif
if (r < 0)
vms_fatal_exit("select in thread failed: %d", errno);
pipe_lock();
for (i = 0; i < select_set_max; i++) {
if (i == select_thread_signal[0]) {
if (FD_ISSET(i, &rs))
clear_events(i, 0);
continue;
}
if (FD_ISSET(i, &rs)) {
FD_CLR(i, &rs);
FD_CLR(i, &select_set_read);
should_wake = 1;
}
if (FD_ISSET(i, &ws)) {
FD_CLR(i, &ws);
FD_CLR(i, &select_set_write);
should_wake = 1;
}
if (FD_ISSET(i, &es)) {
FD_CLR(i, &es);
FD_CLR(i, &select_set_exception);
should_wake = 1;
}
}
}
}
}
static void select_thread_wake(void)
{
int r;
EINTRLOOP(r, (int)write(select_thread_signal[1], "", 1));
pipe_wake_cond(&select_cond);
}
#endif
#ifndef VMS_SELECT_THREAD
#ifdef __VAX
#define MIN_WAIT_TIME 10000
#else
#define MIN_WAIT_TIME 900
#endif
#define MAX_WAIT_TIME 999999
static unsigned wait_time = MIN_WAIT_TIME;
static void increase_dynamic_time(void)
{
wait_time += (wait_time / 2);
if (wait_time > MAX_WAIT_TIME) wait_time = MAX_WAIT_TIME;
}
static void decrease_dynamic_time(void)
{
wait_time /= 2;
if (wait_time > MIN_WAIT_TIME) wait_time = MIN_WAIT_TIME;
}
#endif
int vms_select(int n, fd_set *rs, fd_set *ws, fd_set *es, struct timeval *t)
{
struct timespec ts;
int i;
int last_pass = 0;
int ret_cnt = 0;
int dynamic_wait;
#ifndef VMS_SELECT_THREAD
int dynamically_waited = 0;
#endif
/*if (!rs && !ws && !es)
return select(0, NULL, NULL, NULL, t);*/
if (t) {
if (!t->tv_sec && !t->tv_usec) {
last_pass = 1;
} else {
get_abstime(t->tv_sec, t->tv_usec, &ts);
}
}
pipe_lock();
test_again:
dynamic_wait = 0;
for (i = 0; i < n; i++) {
int ts = 0;
if (rs && FD_ISSET(i, rs)) {
int signaled = 0;
if (pipe_desc[i]) {
signaled |= vpipe_may_read(i);
} else {
#ifdef VMS_SELECT_THREAD
if (FD_ISSET(i, &select_set_read)) dynamic_wait |= 1;
else
#endif
if (check_fd(i, 0)) signaled = 1;
else {
#ifdef VMS_SELECT_THREAD
add_to_thread_set(i, &add_set_read);
#endif
dynamic_wait |= 3;
}
}
if (!last_pass) {
if (signaled) {
clear_inactive(rs, i);
clear_inactive(ws, i);
clear_inactive(es, i);
last_pass = 1;
}
} else {
if (!signaled) FD_CLR(i, rs);
}
ts |= signaled;
}
if (ws && FD_ISSET(i, ws)) {
int signaled = 0;
if (pipe_desc[i]) {
signaled |= vpipe_may_write(i);
} else {
#ifdef VMS_SELECT_THREAD
if (FD_ISSET(i, &select_set_write)) dynamic_wait |= 1;
else
#endif
if (check_fd(i, 1)) signaled = 1;
else {
#ifdef VMS_SELECT_THREAD
add_to_thread_set(i, &add_set_write);
#endif
dynamic_wait |= 3;
}
}
if (!last_pass) {
if (signaled) {
clear_inactive(rs, i + 1);
clear_inactive(ws, i);
clear_inactive(es, i);
last_pass = 1;
}
} else {
if (!signaled) FD_CLR(i, ws);
}
ts |= signaled;
}
if (es && FD_ISSET(i, es)) {
int signaled = 0;
if (pipe_desc[i]) {
} else {
#ifdef VMS_SELECT_THREAD
if (FD_ISSET(i, &select_set_exception)) dynamic_wait |= 1;
else
#endif
if (check_fd(i, 2)) signaled = 1;
else {
#ifdef VMS_SELECT_THREAD
add_to_thread_set(i, &add_set_exception);
dynamic_wait |= 3;
#endif
}
}
if (!last_pass) {
if (signaled) {
clear_inactive(rs, i + 1);
clear_inactive(ws, i + 1);
clear_inactive(es, i);
last_pass = 1;
}
} else {
if (!signaled) FD_CLR(i, es);
}
ts |= signaled;
}
if (last_pass) ret_cnt += ts;
}
if (!last_pass) {
#ifndef VMS_SELECT_THREAD
if (dynamic_wait) {
struct timespec ts2;
if (dynamically_waited)
increase_dynamic_time();
/*fprintf(stderr, "wait time: %d\n", wait_time);*/
get_abstime(0, wait_time, &ts2);
if (t &&
(ts2.tv_sec > ts.tv_sec ||
(ts2.tv_sec == ts.tv_sec && ts2.tv_nsec > ts.tv_nsec)))
goto full_wait;
dynamically_waited = pipe_unlock_wait_time(&ts2);
goto test_again;
}
#else
if (dynamic_wait & 2)
select_thread_wake();
#endif
#ifndef VMS_SELECT_THREAD
dynamically_waited = 0;
#endif
if (!t) {
pipe_unlock_wait();
goto test_again;
} else {
full_wait:
if (pipe_unlock_wait_time(&ts))
last_pass = 1;
goto test_again;
}
}
#ifndef VMS_SELECT_THREAD
if (dynamically_waited)
decrease_dynamic_time();
#endif
pipe_unlock();
return ret_cnt;
}
#else
int vms_select(int n, fd_set *rs, fd_set *ws, fd_set *es, struct timeval *t)
{
return select(n, rs, ws, es, t);
}
#endif
int vms_close(int fd)
{
#ifdef VMS_VIRTUAL_PIPE
int r = vpipe_close(fd);
if (r != -2) return r;
#ifdef VMS_SELECT_THREAD
pipe_lock();
while (1) {
FD_CLR(fd, &add_set_read);
FD_CLR(fd, &add_set_write);
FD_CLR(fd, &add_set_exception);
if (!(FD_ISSET(fd, &select_set_read) ||
FD_ISSET(fd, &select_set_write) ||
FD_ISSET(fd, &select_set_exception)))
break;
add_to_thread_set(fd, &remove_set);
#ifdef TEST_WAKE_BUG
fprintf(stderr, "close 1. ");
#endif
select_thread_wake();
#ifdef TEST_WAKE_BUG
fprintf(stderr, "close 2. ");
#endif
pipe_unlock_wait();
#ifdef TEST_WAKE_BUG
fprintf(stderr, "close 3. ");
#endif
}
pipe_unlock();
#endif
#endif
return close(fd);
}
int vms_pipe(int fd[2])
{
#ifdef VMS_VIRTUAL_PIPE
return vpipe_create(fd);
#else
return vms_socketpair(fd);
#endif
}
void set_nonblock(int fd)
{
#ifdef VMS_VIRTUAL_PIPE
if (get_virtual_pipe(fd)) {
pipe_flags[fd] |= VIRTUAL_PIPE_FLAG_NONBLOCK;
pipe_unlock();
pipe_wake();
} else
#endif
{
int rs;
int on = 1;
EINTRLOOP(rs, ioctl(fd, FIONBIO, &on));
}
}
#define BOUNCE_BUFFER_SIZE 64
int vms_read(int fd, void *buf, size_t size)
{
#ifdef VMS_VIRTUAL_PIPE
int r = vpipe_read(fd, buf, size);
if (r != -2) return r;
#endif
#ifdef OPENVMS_64BIT
if ((my_uintptr_t)buf + size >= 0x80000000U) {
int r;
unsigned char static_buffer[BOUNCE_BUFFER_SIZE];
unsigned char *bounce_buffer = NULL;
if (size > BOUNCE_BUFFER_SIZE)
bounce_buffer = _malloc32(size);
if (!bounce_buffer) {
bounce_buffer = static_buffer;
if (size > BOUNCE_BUFFER_SIZE) size = BOUNCE_BUFFER_SIZE;
}
r = read(fd, bounce_buffer, size);
if (r > 0) memcpy(buf, bounce_buffer, r);
if (bounce_buffer != static_buffer)
free(bounce_buffer);
return r;
}
#endif
return read(fd, buf, size);
}
int vms_write(int fd, const void *buf, size_t size)
{
#ifdef VMS_VIRTUAL_PIPE
int r = vpipe_write(fd, buf, size);
if (r != -2) return r;
#endif
#ifdef OPENVMS_64BIT
if ((my_uintptr_t)buf + size >= 0x80000000U) {
int r;
unsigned char static_buffer[BOUNCE_BUFFER_SIZE];
unsigned char *bounce_buffer = NULL;
if (size > BOUNCE_BUFFER_SIZE)
bounce_buffer = _malloc32(size);
if (!bounce_buffer) {
bounce_buffer = static_buffer;
if (size > BOUNCE_BUFFER_SIZE) size = BOUNCE_BUFFER_SIZE;
}
memcpy(bounce_buffer, buf, size);
r = write(fd, bounce_buffer, size);
if (bounce_buffer != static_buffer)
free(bounce_buffer);
return r;
}
#endif
return write(fd, buf, size);
}
#ifdef VMS_ADVANCED_HEAP
struct region {
unsigned char *start;
size_t len;
int allocated;
};
static struct region *regions = NULL;
static int n_used_regions = 0;
static int n_allocated_regions = 0;
static unsigned char *max_expreg = NULL;
static int expand_regions(void)
{
struct region *regs;
if (n_used_regions < n_allocated_regions)
return 0;
if (n_allocated_regions >= MAXINT / 2 / sizeof(struct region))
return -1;
regs = realloc(regions, (n_allocated_regions + 1) * sizeof(struct region));
if (!regs)
return -1;
regions = regs;
n_allocated_regions++;
return 0;
}
void *virtual_alloc(size_t len)
{
int i;
struct va_range expr, cre_range;
int vms_ret;
search_again:
for (i = 0; i < n_used_regions; i++) {
if (regions[i].allocated)
continue;
if (regions[i].len < len)
continue;
if (regions[i].len == len) {
regions[i].allocated = 1;
goto ret_st;
}
if (expand_regions())
return NULL;
memmove(®ions[i + 1], ®ions[i], (n_used_regions - i) * sizeof(struct region));
n_used_regions++;
regions[i].len = len;
regions[i].allocated = 1;
regions[i + 1].start = regions[i].start + len;
regions[i + 1].len -= len;
ret_st:
cre_range.va_range$ps_start_va = regions[i].start;
cre_range.va_range$ps_end_va = regions[i].start + len - 1;
vms_ret = links_cretva(&cre_range, &expr, 0);
if (vms_ret != SS$_NORMAL) {
/*fprintf(stderr, "cretva failed\n");*/
regions[i].allocated = 0;
return NULL;
}
/*fprintf(stderr, "allocated: %p,%p ; %p,%p\n", cre_range.va_range$ps_start_va, cre_range.va_range$ps_end_va, expr.va_range$ps_start_va, expr.va_range$ps_end_va);*/
/*fprintf(stderr, "found existing (%d)\n", n_used_regions);*/
/*memset(regions[i].start, 0, regions[i].len);*/
return regions[i].start;
}
if (expand_regions())
return NULL;
vms_ret = links_expreg(len >> 9, &expr, 0, 0);
if (vms_ret != SS$_NORMAL) {
return NULL;
}
/*fprintf(stderr, "expreg (%p,%p %p) (%d)\n", expr.va_range$ps_start_va, expr.va_range$ps_end_va, (void *)len, n_used_regions);*/
max_expreg = expr.va_range$ps_end_va;
regions[n_used_regions].start = expr.va_range$ps_start_va;
regions[n_used_regions].len = (unsigned char *)expr.va_range$ps_end_va - (unsigned char *)expr.va_range$ps_start_va + 1;
regions[n_used_regions].allocated = 1;
n_used_regions++;
if (len != regions[n_used_regions - 1].len) {
/*fprintf(stderr, "size mismatch\n");*/
regions[n_used_regions - 1].allocated = 0;
return NULL;
}
return expr.va_range$ps_start_va;
}
void virtual_free(void *ptr, size_t len)
{
int i;
struct va_range del_range, del_ret;
int vms_ret;
for (i = 0; i < n_used_regions; i++) {
if (!regions[i].allocated)
continue;
if (regions[i].start == ptr && regions[i].len == len)
goto found;
}
vms_fatal_exit("alloaction %p, %p not found", ptr, (void *)len);
found:
/*fprintf(stderr, "dealloc (%d - %p,%p) (%d)\n", i, ptr, (void *)len, n_used_regions);*/
regions[i].allocated = 0;
if (i < n_used_regions - 1 && !regions[i + 1].allocated && regions[i].start + regions[i].len == regions[i + 1].start) {
regions[i].len += regions[i + 1].len;
memmove(®ions[i + 1], ®ions[i + 2], (n_used_regions - i - 2) * sizeof(struct region));
n_used_regions--;
/*fprintf(stderr, "front merge\n");*/
}
if (i && !regions[i - 1].allocated && regions[i - 1].start + regions[i - 1].len == regions[i].start) {
regions[i - 1].len += regions[i].len;
memmove(®ions[i], ®ions[i + 1], (n_used_regions - 1 - i) * sizeof(struct region));
n_used_regions--;
/*fprintf(stderr, "back merge\n");*/
}
del_range.va_range$ps_start_va = ptr;
del_range.va_range$ps_end_va = (unsigned char *)ptr + (len - 1);
if (del_range.va_range$ps_end_va == max_expreg) {
del_range.va_range$ps_end_va = (unsigned char *)del_range.va_range$ps_end_va - page_size;
memset((unsigned char *)del_range.va_range$ps_end_va + 1, 0, page_size);
}
if (del_range.va_range$ps_start_va <= del_range.va_range$ps_end_va) {
vms_ret = links_deltva(&del_range, &del_ret, 0);
if (vms_ret != SS$_NORMAL)
vms_fatal_exit("deltva failed: %d", vms_ret);
}
}
#endif
void init_os(void)
{
#if !defined(__VAX) && defined(__FEATURE_MODE_INIT_STATE) && defined(__FEATURE_MODE_CURVAL)
if (decc$feature_get("DECC$EFS_CHARSET", __FEATURE_MODE_INIT_STATE) < 1)
decc$feature_set("DECC$EFS_CHARSET", __FEATURE_MODE_CURVAL, 1);
#endif
#if defined(OPENVMS_64BIT)
{
int i;
char **new_argv = malloc((g_argc + 1) * sizeof(char *));
if (!new_argv) vms_fatal_exit("can't allocate argv");
for (i = 0; i <= g_argc; i++)
new_argv[i] = (char *)(my_intptr_t)(((unsigned *)g_argv)[i]);
g_argv = new_argv;
}
#endif
#ifdef VMS_VIRTUAL_PIPE
{
int ret;
ret = pthread_mutex_init(&pipe_mutex, NULL);
if (ret)
vms_fatal_exit("pthread_mutex_init failed: %d", ret);
ret = pthread_cond_init(&pipe_cond, NULL);
if (ret)
vms_fatal_exit("pthread_cond_init failed: %d", ret);
#ifdef VMS_SELECT_THREAD
ret = pthread_cond_init(&select_cond, NULL);
if (ret)
vms_fatal_exit("pthread_cond_init failed: %d", ret);
ret = vms_socketpair(select_thread_signal);
if (ret)
vms_fatal_exit("can't create select thread socket");
set_nonblock(select_thread_signal[0]);
set_nonblock(select_thread_signal[1]);
select_set_max = 0;
FD_ZERO(&select_set_read);
FD_ZERO(&select_set_write);
FD_ZERO(&select_set_exception);
FD_ZERO(&add_set_read);
FD_ZERO(&add_set_write);
FD_ZERO(&add_set_exception);
FD_ZERO(&remove_set);
add_to_thread_set(select_thread_signal[0], &select_set_read);
select_set_max = select_thread_signal[0] + 1;
vms_thread_high_priority = -1;
ret = start_thread(vms_select_thread, NULL, 0, 0);
if (ret == -1)
vms_fatal_exit("unable to start select thread");
vms_thread_high_priority = 0;
#endif
}
#endif
}
void os_seed_random(unsigned char **pool, int *pool_size)
{
struct history_item *hi;
struct list_head *lhi;
DIR *dir;
int n, h;
*pool = init_str();
*pool_size = 0;
/*
* This is not very secure, but I don't know a better way.
*/
add_bytes_to_str(pool, pool_size, (unsigned char *)(void *)&gettimeofday_pool, sizeof gettimeofday_pool);
#ifdef USE_SHA
/*
* Make sure that even if the transformation is reversible (due to
* poor randomness on OpenVMS), the adversary won't be able to find
* any URLs in the history.
*/
n = 0;
foreach(struct history_item, hi, lhi, goto_url_history.items) {
SHA_CTX ctx;
unsigned char result[SHA_DIGEST_LENGTH];
unsigned char sum;
int i;
SHA1_Init(&ctx);
SHA1_Update(&ctx, hi->str, strlen(cast_const_char hi->str));
SHA1_Final(result, &ctx);
sum = 0;
for (i = 0; i < SHA_DIGEST_LENGTH; i++) {
sum += result[i] + (result[i] >> 4);
}
add_chr_to_str(pool, pool_size, sum & 0xf);
if (++n >= 64)
break;
}
#endif
dir = c_opendir(cast_uchar "/SYS$LOGIN");
if (dir) {
for (n = 0; n < 256; n++) {
struct dirent *de;
unsigned char *path;
struct stat st;
ENULLLOOP(de, (void *)readdir(dir));
if (!de)
break;
path = stracpy(cast_uchar "/SYS$LOGIN/");
add_to_strn(&path, cast_uchar de->d_name);
if (!stat(cast_const_char path, &st)) {
add_bytes_to_str(pool, pool_size, (unsigned char *)&st.st_ctime, (int)sizeof st.st_ctime);
}
mem_free(path);
}
closedir(dir);
}
h = c_open(cast_uchar "/SYS$LOGIN/SSH2/RANDOM_SEED", O_RDONLY);
if (h == -1)
h = c_open(cast_uchar "/SYS$LOGIN/SSH/RANDOM_SEED", O_RDONLY);
if (h != -1) {
unsigned char buffer[512];
int r;
r = hard_read(h, buffer, (int)sizeof buffer);
if (r >= 0)
add_bytes_to_str(pool, pool_size, buffer, r);
EINTRLOOP(r, close(h));
}
}
void terminate_osdep(void)
{
}
#else
typedef int vms_c_no_empty_unit;
#endif
|