| 1 | /* |
| 2 | * Copyright (c) 1983 The Regents of the University of California. |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms are permitted |
| 6 | * provided that the above copyright notice and this paragraph are |
| 7 | * duplicated in all such forms and that any documentation, |
| 8 | * advertising materials, and other materials related to such |
| 9 | * distribution and use acknowledge that the software was developed |
| 10 | * by the University of California, Berkeley. The name of the |
| 11 | * University may not be used to endorse or promote products derived |
| 12 | * from this software without specific prior written permission. |
| 13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR |
| 14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED |
| 15 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
| 16 | */ |
| 17 | |
| 18 | #ifndef lint |
| 19 | static char sccsid[] = "@(#)cmds.c 5.10 (Berkeley) %G%"; |
| 20 | #endif /* not lint */ |
| 21 | |
| 22 | #include "tip.h" |
| 23 | #include "pathnames.h" |
| 24 | |
| 25 | /* |
| 26 | * tip |
| 27 | * |
| 28 | * miscellaneous commands |
| 29 | */ |
| 30 | |
| 31 | int quant[] = { 60, 60, 24 }; |
| 32 | |
| 33 | char null = '\0'; |
| 34 | char *sep[] = { "second", "minute", "hour" }; |
| 35 | static char *argv[10]; /* argument vector for take and put */ |
| 36 | |
| 37 | int timeout(); /* timeout function called on alarm */ |
| 38 | int stopsnd(); /* SIGINT handler during file transfers */ |
| 39 | int intprompt(); /* used in handling SIG_INT during prompt */ |
| 40 | int intcopy(); /* interrupt routine for file transfers */ |
| 41 | |
| 42 | /* |
| 43 | * FTP - remote ==> local |
| 44 | * get a file from the remote host |
| 45 | */ |
| 46 | getfl(c) |
| 47 | char c; |
| 48 | { |
| 49 | char buf[256], *cp, *expand(); |
| 50 | |
| 51 | putchar(c); |
| 52 | /* |
| 53 | * get the UNIX receiving file's name |
| 54 | */ |
| 55 | if (prompt("Local file name? ", copyname)) |
| 56 | return; |
| 57 | cp = expand(copyname); |
| 58 | if ((sfd = creat(cp, 0666)) < 0) { |
| 59 | printf("\r\n%s: cannot creat\r\n", copyname); |
| 60 | return; |
| 61 | } |
| 62 | |
| 63 | /* |
| 64 | * collect parameters |
| 65 | */ |
| 66 | if (prompt("List command for remote system? ", buf)) { |
| 67 | unlink(copyname); |
| 68 | return; |
| 69 | } |
| 70 | transfer(buf, sfd, value(EOFREAD)); |
| 71 | } |
| 72 | |
| 73 | /* |
| 74 | * Cu-like take command |
| 75 | */ |
| 76 | cu_take(cc) |
| 77 | char cc; |
| 78 | { |
| 79 | int fd, argc; |
| 80 | char line[BUFSIZ], *expand(), *cp; |
| 81 | |
| 82 | if (prompt("[take] ", copyname)) |
| 83 | return; |
| 84 | if ((argc = args(copyname, argv)) < 1 || argc > 2) { |
| 85 | printf("usage: <take> from [to]\r\n"); |
| 86 | return; |
| 87 | } |
| 88 | if (argc == 1) |
| 89 | argv[1] = argv[0]; |
| 90 | cp = expand(argv[1]); |
| 91 | if ((fd = creat(cp, 0666)) < 0) { |
| 92 | printf("\r\n%s: cannot create\r\n", argv[1]); |
| 93 | return; |
| 94 | } |
| 95 | sprintf(line, "cat %s;echo \01", argv[0]); |
| 96 | transfer(line, fd, "\01"); |
| 97 | } |
| 98 | |
| 99 | static jmp_buf intbuf; |
| 100 | /* |
| 101 | * Bulk transfer routine -- |
| 102 | * used by getfl(), cu_take(), and pipefile() |
| 103 | */ |
| 104 | transfer(buf, fd, eofchars) |
| 105 | char *buf, *eofchars; |
| 106 | { |
| 107 | register int ct; |
| 108 | char c, buffer[BUFSIZ]; |
| 109 | register char *p = buffer; |
| 110 | register int cnt, eof; |
| 111 | time_t start; |
| 112 | int (*f)(); |
| 113 | |
| 114 | pwrite(FD, buf, size(buf)); |
| 115 | quit = 0; |
| 116 | kill(pid, SIGIOT); |
| 117 | read(repdes[0], (char *)&ccc, 1); /* Wait until read process stops */ |
| 118 | |
| 119 | /* |
| 120 | * finish command |
| 121 | */ |
| 122 | pwrite(FD, "\r", 1); |
| 123 | do |
| 124 | read(FD, &c, 1); |
| 125 | while ((c&0177) != '\n'); |
| 126 | ioctl(0, TIOCSETC, &defchars); |
| 127 | |
| 128 | (void) setjmp(intbuf); |
| 129 | f = signal(SIGINT, intcopy); |
| 130 | start = time(0); |
| 131 | for (ct = 0; !quit;) { |
| 132 | eof = read(FD, &c, 1) <= 0; |
| 133 | c &= 0177; |
| 134 | if (quit) |
| 135 | continue; |
| 136 | if (eof || any(c, eofchars)) |
| 137 | break; |
| 138 | if (c == 0) |
| 139 | continue; /* ignore nulls */ |
| 140 | if (c == '\r') |
| 141 | continue; |
| 142 | *p++ = c; |
| 143 | |
| 144 | if (c == '\n' && boolean(value(VERBOSE))) |
| 145 | printf("\r%d", ++ct); |
| 146 | if ((cnt = (p-buffer)) == number(value(FRAMESIZE))) { |
| 147 | if (write(fd, buffer, cnt) != cnt) { |
| 148 | printf("\r\nwrite error\r\n"); |
| 149 | quit = 1; |
| 150 | } |
| 151 | p = buffer; |
| 152 | } |
| 153 | } |
| 154 | if (cnt = (p-buffer)) |
| 155 | if (write(fd, buffer, cnt) != cnt) |
| 156 | printf("\r\nwrite error\r\n"); |
| 157 | |
| 158 | if (boolean(value(VERBOSE))) |
| 159 | prtime(" lines transferred in ", time(0)-start); |
| 160 | ioctl(0, TIOCSETC, &tchars); |
| 161 | write(fildes[1], (char *)&ccc, 1); |
| 162 | signal(SIGINT, f); |
| 163 | close(fd); |
| 164 | } |
| 165 | |
| 166 | /* |
| 167 | * FTP - remote ==> local process |
| 168 | * send remote input to local process via pipe |
| 169 | */ |
| 170 | pipefile() |
| 171 | { |
| 172 | int cpid, pdes[2]; |
| 173 | char buf[256]; |
| 174 | int status, p; |
| 175 | extern int errno; |
| 176 | |
| 177 | if (prompt("Local command? ", buf)) |
| 178 | return; |
| 179 | |
| 180 | if (pipe(pdes)) { |
| 181 | printf("can't establish pipe\r\n"); |
| 182 | return; |
| 183 | } |
| 184 | |
| 185 | if ((cpid = fork()) < 0) { |
| 186 | printf("can't fork!\r\n"); |
| 187 | return; |
| 188 | } else if (cpid) { |
| 189 | if (prompt("List command for remote system? ", buf)) { |
| 190 | close(pdes[0]), close(pdes[1]); |
| 191 | kill (cpid, SIGKILL); |
| 192 | } else { |
| 193 | close(pdes[0]); |
| 194 | signal(SIGPIPE, intcopy); |
| 195 | transfer(buf, pdes[1], value(EOFREAD)); |
| 196 | signal(SIGPIPE, SIG_DFL); |
| 197 | while ((p = wait(&status)) > 0 && p != cpid) |
| 198 | ; |
| 199 | } |
| 200 | } else { |
| 201 | register int f; |
| 202 | |
| 203 | dup2(pdes[0], 0); |
| 204 | close(pdes[0]); |
| 205 | for (f = 3; f < 20; f++) |
| 206 | close(f); |
| 207 | execute(buf); |
| 208 | printf("can't execl!\r\n"); |
| 209 | exit(0); |
| 210 | } |
| 211 | } |
| 212 | |
| 213 | /* |
| 214 | * Interrupt service routine for FTP |
| 215 | */ |
| 216 | stopsnd() |
| 217 | { |
| 218 | |
| 219 | stop = 1; |
| 220 | signal(SIGINT, SIG_IGN); |
| 221 | } |
| 222 | |
| 223 | /* |
| 224 | * FTP - local ==> remote |
| 225 | * send local file to remote host |
| 226 | * terminate transmission with pseudo EOF sequence |
| 227 | */ |
| 228 | sendfile(cc) |
| 229 | char cc; |
| 230 | { |
| 231 | FILE *fd; |
| 232 | char *fnamex; |
| 233 | char *expand(); |
| 234 | |
| 235 | putchar(cc); |
| 236 | /* |
| 237 | * get file name |
| 238 | */ |
| 239 | if (prompt("Local file name? ", fname)) |
| 240 | return; |
| 241 | |
| 242 | /* |
| 243 | * look up file |
| 244 | */ |
| 245 | fnamex = expand(fname); |
| 246 | if ((fd = fopen(fnamex, "r")) == NULL) { |
| 247 | printf("%s: cannot open\r\n", fname); |
| 248 | return; |
| 249 | } |
| 250 | transmit(fd, value(EOFWRITE), NULL); |
| 251 | if (!boolean(value(ECHOCHECK))) { |
| 252 | struct sgttyb buf; |
| 253 | |
| 254 | ioctl(FD, TIOCGETP, &buf); /* this does a */ |
| 255 | ioctl(FD, TIOCSETP, &buf); /* wflushtty */ |
| 256 | } |
| 257 | } |
| 258 | |
| 259 | /* |
| 260 | * Bulk transfer routine to remote host -- |
| 261 | * used by sendfile() and cu_put() |
| 262 | */ |
| 263 | transmit(fd, eofchars, command) |
| 264 | FILE *fd; |
| 265 | char *eofchars, *command; |
| 266 | { |
| 267 | char *pc, lastc; |
| 268 | int c, ccount, lcount; |
| 269 | time_t start_t, stop_t; |
| 270 | int (*f)(); |
| 271 | |
| 272 | kill(pid, SIGIOT); /* put TIPOUT into a wait state */ |
| 273 | stop = 0; |
| 274 | f = signal(SIGINT, stopsnd); |
| 275 | ioctl(0, TIOCSETC, &defchars); |
| 276 | read(repdes[0], (char *)&ccc, 1); |
| 277 | if (command != NULL) { |
| 278 | for (pc = command; *pc; pc++) |
| 279 | send(*pc); |
| 280 | if (boolean(value(ECHOCHECK))) |
| 281 | read(FD, (char *)&c, 1); /* trailing \n */ |
| 282 | else { |
| 283 | struct sgttyb buf; |
| 284 | |
| 285 | ioctl(FD, TIOCGETP, &buf); /* this does a */ |
| 286 | ioctl(FD, TIOCSETP, &buf); /* wflushtty */ |
| 287 | sleep(5); /* wait for remote stty to take effect */ |
| 288 | } |
| 289 | } |
| 290 | lcount = 0; |
| 291 | lastc = '\0'; |
| 292 | start_t = time(0); |
| 293 | while (1) { |
| 294 | ccount = 0; |
| 295 | do { |
| 296 | c = getc(fd); |
| 297 | if (stop) |
| 298 | goto out; |
| 299 | if (c == EOF) |
| 300 | goto out; |
| 301 | if (c == 0177 && !boolean(value(RAWFTP))) |
| 302 | continue; |
| 303 | lastc = c; |
| 304 | if (c < 040) { |
| 305 | if (c == '\n') { |
| 306 | if (!boolean(value(RAWFTP))) |
| 307 | c = '\r'; |
| 308 | } |
| 309 | else if (c == '\t') { |
| 310 | if (!boolean(value(RAWFTP))) { |
| 311 | if (boolean(value(TABEXPAND))) { |
| 312 | send(' '); |
| 313 | while ((++ccount % 8) != 0) |
| 314 | send(' '); |
| 315 | continue; |
| 316 | } |
| 317 | } |
| 318 | } else |
| 319 | if (!boolean(value(RAWFTP))) |
| 320 | continue; |
| 321 | } |
| 322 | send(c); |
| 323 | } while (c != '\r' && !boolean(value(RAWFTP))); |
| 324 | if (boolean(value(VERBOSE))) |
| 325 | printf("\r%d", ++lcount); |
| 326 | if (boolean(value(ECHOCHECK))) { |
| 327 | timedout = 0; |
| 328 | alarm(value(ETIMEOUT)); |
| 329 | do { /* wait for prompt */ |
| 330 | read(FD, (char *)&c, 1); |
| 331 | if (timedout || stop) { |
| 332 | if (timedout) |
| 333 | printf("\r\ntimed out at eol\r\n"); |
| 334 | alarm(0); |
| 335 | goto out; |
| 336 | } |
| 337 | } while ((c&0177) != character(value(PROMPT))); |
| 338 | alarm(0); |
| 339 | } |
| 340 | } |
| 341 | out: |
| 342 | if (lastc != '\n' && !boolean(value(RAWFTP))) |
| 343 | send('\r'); |
| 344 | for (pc = eofchars; *pc; pc++) |
| 345 | send(*pc); |
| 346 | stop_t = time(0); |
| 347 | fclose(fd); |
| 348 | signal(SIGINT, f); |
| 349 | if (boolean(value(VERBOSE))) |
| 350 | if (boolean(value(RAWFTP))) |
| 351 | prtime(" chars transferred in ", stop_t-start_t); |
| 352 | else |
| 353 | prtime(" lines transferred in ", stop_t-start_t); |
| 354 | write(fildes[1], (char *)&ccc, 1); |
| 355 | ioctl(0, TIOCSETC, &tchars); |
| 356 | } |
| 357 | |
| 358 | /* |
| 359 | * Cu-like put command |
| 360 | */ |
| 361 | cu_put(cc) |
| 362 | char cc; |
| 363 | { |
| 364 | FILE *fd; |
| 365 | char line[BUFSIZ]; |
| 366 | int argc; |
| 367 | char *expand(); |
| 368 | char *copynamex; |
| 369 | |
| 370 | if (prompt("[put] ", copyname)) |
| 371 | return; |
| 372 | if ((argc = args(copyname, argv)) < 1 || argc > 2) { |
| 373 | printf("usage: <put> from [to]\r\n"); |
| 374 | return; |
| 375 | } |
| 376 | if (argc == 1) |
| 377 | argv[1] = argv[0]; |
| 378 | copynamex = expand(argv[0]); |
| 379 | if ((fd = fopen(copynamex, "r")) == NULL) { |
| 380 | printf("%s: cannot open\r\n", copynamex); |
| 381 | return; |
| 382 | } |
| 383 | if (boolean(value(ECHOCHECK))) |
| 384 | sprintf(line, "cat>%s\r", argv[1]); |
| 385 | else |
| 386 | sprintf(line, "stty -echo;cat>%s;stty echo\r", argv[1]); |
| 387 | transmit(fd, "\04", line); |
| 388 | } |
| 389 | |
| 390 | /* |
| 391 | * FTP - send single character |
| 392 | * wait for echo & handle timeout |
| 393 | */ |
| 394 | send(c) |
| 395 | char c; |
| 396 | { |
| 397 | char cc; |
| 398 | int retry = 0; |
| 399 | |
| 400 | cc = c; |
| 401 | pwrite(FD, &cc, 1); |
| 402 | #ifdef notdef |
| 403 | if (number(value(CDELAY)) > 0 && c != '\r') |
| 404 | nap(number(value(CDELAY))); |
| 405 | #endif |
| 406 | if (!boolean(value(ECHOCHECK))) { |
| 407 | #ifdef notdef |
| 408 | if (number(value(LDELAY)) > 0 && c == '\r') |
| 409 | nap(number(value(LDELAY))); |
| 410 | #endif |
| 411 | return; |
| 412 | } |
| 413 | tryagain: |
| 414 | timedout = 0; |
| 415 | alarm(value(ETIMEOUT)); |
| 416 | read(FD, &cc, 1); |
| 417 | alarm(0); |
| 418 | if (timedout) { |
| 419 | printf("\r\ntimeout error (%s)\r\n", ctrl(c)); |
| 420 | if (retry++ > 3) |
| 421 | return; |
| 422 | pwrite(FD, &null, 1); /* poke it */ |
| 423 | goto tryagain; |
| 424 | } |
| 425 | } |
| 426 | |
| 427 | timeout() |
| 428 | { |
| 429 | signal(SIGALRM, timeout); |
| 430 | timedout = 1; |
| 431 | } |
| 432 | |
| 433 | /* |
| 434 | * Stolen from consh() -- puts a remote file on the output of a local command. |
| 435 | * Identical to consh() except for where stdout goes. |
| 436 | */ |
| 437 | pipeout(c) |
| 438 | { |
| 439 | char buf[256]; |
| 440 | int cpid, status, p; |
| 441 | time_t start; |
| 442 | |
| 443 | putchar(c); |
| 444 | if (prompt("Local command? ", buf)) |
| 445 | return; |
| 446 | kill(pid, SIGIOT); /* put TIPOUT into a wait state */ |
| 447 | signal(SIGINT, SIG_IGN); |
| 448 | signal(SIGQUIT, SIG_IGN); |
| 449 | ioctl(0, TIOCSETC, &defchars); |
| 450 | read(repdes[0], (char *)&ccc, 1); |
| 451 | /* |
| 452 | * Set up file descriptors in the child and |
| 453 | * let it go... |
| 454 | */ |
| 455 | if ((cpid = fork()) < 0) |
| 456 | printf("can't fork!\r\n"); |
| 457 | else if (cpid) { |
| 458 | start = time(0); |
| 459 | while ((p = wait(&status)) > 0 && p != cpid) |
| 460 | ; |
| 461 | } else { |
| 462 | register int i; |
| 463 | |
| 464 | dup2(FD, 1); |
| 465 | for (i = 3; i < 20; i++) |
| 466 | close(i); |
| 467 | signal(SIGINT, SIG_DFL); |
| 468 | signal(SIGQUIT, SIG_DFL); |
| 469 | execute(buf); |
| 470 | printf("can't find `%s'\r\n", buf); |
| 471 | exit(0); |
| 472 | } |
| 473 | if (boolean(value(VERBOSE))) |
| 474 | prtime("away for ", time(0)-start); |
| 475 | write(fildes[1], (char *)&ccc, 1); |
| 476 | ioctl(0, TIOCSETC, &tchars); |
| 477 | signal(SIGINT, SIG_DFL); |
| 478 | signal(SIGQUIT, SIG_DFL); |
| 479 | } |
| 480 | |
| 481 | #ifdef CONNECT |
| 482 | /* |
| 483 | * Fork a program with: |
| 484 | * 0 <-> local tty in |
| 485 | * 1 <-> local tty out |
| 486 | * 2 <-> local tty out |
| 487 | * 3 <-> remote tty in |
| 488 | * 4 <-> remote tty out |
| 489 | */ |
| 490 | consh(c) |
| 491 | { |
| 492 | char buf[256]; |
| 493 | int cpid, status, p; |
| 494 | time_t start; |
| 495 | |
| 496 | putchar(c); |
| 497 | if (prompt("Local command? ", buf)) |
| 498 | return; |
| 499 | kill(pid, SIGIOT); /* put TIPOUT into a wait state */ |
| 500 | signal(SIGINT, SIG_IGN); |
| 501 | signal(SIGQUIT, SIG_IGN); |
| 502 | ioctl(0, TIOCSETC, &defchars); |
| 503 | read(repdes[0], (char *)&ccc, 1); |
| 504 | /* |
| 505 | * Set up file descriptors in the child and |
| 506 | * let it go... |
| 507 | */ |
| 508 | if ((cpid = fork()) < 0) |
| 509 | printf("can't fork!\r\n"); |
| 510 | else if (cpid) { |
| 511 | start = time(0); |
| 512 | while ((p = wait(&status)) > 0 && p != cpid) |
| 513 | ; |
| 514 | } else { |
| 515 | register int i; |
| 516 | |
| 517 | dup2(FD, 3); |
| 518 | dup2(3, 4); |
| 519 | for (i = 5; i < 20; i++) |
| 520 | close(i); |
| 521 | signal(SIGINT, SIG_DFL); |
| 522 | signal(SIGQUIT, SIG_DFL); |
| 523 | execute(buf); |
| 524 | printf("can't find `%s'\r\n", buf); |
| 525 | exit(0); |
| 526 | } |
| 527 | if (boolean(value(VERBOSE))) |
| 528 | prtime("away for ", time(0)-start); |
| 529 | write(fildes[1], (char *)&ccc, 1); |
| 530 | ioctl(0, TIOCSETC, &tchars); |
| 531 | signal(SIGINT, SIG_DFL); |
| 532 | signal(SIGQUIT, SIG_DFL); |
| 533 | } |
| 534 | #endif |
| 535 | |
| 536 | /* |
| 537 | * Escape to local shell |
| 538 | */ |
| 539 | shell() |
| 540 | { |
| 541 | int shpid, status; |
| 542 | extern char **environ; |
| 543 | char *cp; |
| 544 | |
| 545 | printf("[sh]\r\n"); |
| 546 | signal(SIGINT, SIG_IGN); |
| 547 | signal(SIGQUIT, SIG_IGN); |
| 548 | unraw(); |
| 549 | if (shpid = fork()) { |
| 550 | while (shpid != wait(&status)); |
| 551 | raw(); |
| 552 | printf("\r\n!\r\n"); |
| 553 | signal(SIGINT, SIG_DFL); |
| 554 | signal(SIGQUIT, SIG_DFL); |
| 555 | return; |
| 556 | } else { |
| 557 | signal(SIGQUIT, SIG_DFL); |
| 558 | signal(SIGINT, SIG_DFL); |
| 559 | if ((cp = rindex(value(SHELL), '/')) == NULL) |
| 560 | cp = value(SHELL); |
| 561 | else |
| 562 | cp++; |
| 563 | shell_uid(); |
| 564 | execl(value(SHELL), cp, 0); |
| 565 | printf("\r\ncan't execl!\r\n"); |
| 566 | exit(1); |
| 567 | } |
| 568 | } |
| 569 | |
| 570 | /* |
| 571 | * TIPIN portion of scripting |
| 572 | * initiate the conversation with TIPOUT |
| 573 | */ |
| 574 | setscript() |
| 575 | { |
| 576 | char c; |
| 577 | /* |
| 578 | * enable TIPOUT side for dialogue |
| 579 | */ |
| 580 | kill(pid, SIGEMT); |
| 581 | if (boolean(value(SCRIPT))) |
| 582 | write(fildes[1], value(RECORD), size(value(RECORD))); |
| 583 | write(fildes[1], "\n", 1); |
| 584 | /* |
| 585 | * wait for TIPOUT to finish |
| 586 | */ |
| 587 | read(repdes[0], &c, 1); |
| 588 | if (c == 'n') |
| 589 | printf("can't create %s\r\n", value(RECORD)); |
| 590 | } |
| 591 | |
| 592 | /* |
| 593 | * Change current working directory of |
| 594 | * local portion of tip |
| 595 | */ |
| 596 | chdirectory() |
| 597 | { |
| 598 | char dirname[80]; |
| 599 | register char *cp = dirname; |
| 600 | |
| 601 | if (prompt("[cd] ", dirname)) { |
| 602 | if (stoprompt) |
| 603 | return; |
| 604 | cp = value(HOME); |
| 605 | } |
| 606 | if (chdir(cp) < 0) |
| 607 | printf("%s: bad directory\r\n", cp); |
| 608 | printf("!\r\n"); |
| 609 | } |
| 610 | |
| 611 | abort(msg) |
| 612 | char *msg; |
| 613 | { |
| 614 | |
| 615 | kill(pid, SIGTERM); |
| 616 | disconnect(msg); |
| 617 | if (msg != NOSTR) |
| 618 | printf("\r\n%s", msg); |
| 619 | printf("\r\n[EOT]\r\n"); |
| 620 | daemon_uid(); |
| 621 | (void)uu_unlock(uucplock); |
| 622 | unraw(); |
| 623 | exit(0); |
| 624 | } |
| 625 | |
| 626 | finish() |
| 627 | { |
| 628 | char *dismsg; |
| 629 | |
| 630 | if ((dismsg = value(DISCONNECT)) != NOSTR) { |
| 631 | write(FD, dismsg, strlen(dismsg)); |
| 632 | sleep(5); |
| 633 | } |
| 634 | abort(NOSTR); |
| 635 | } |
| 636 | |
| 637 | intcopy() |
| 638 | { |
| 639 | |
| 640 | raw(); |
| 641 | quit = 1; |
| 642 | longjmp(intbuf, 1); |
| 643 | } |
| 644 | |
| 645 | execute(s) |
| 646 | char *s; |
| 647 | { |
| 648 | register char *cp; |
| 649 | |
| 650 | if ((cp = rindex(value(SHELL), '/')) == NULL) |
| 651 | cp = value(SHELL); |
| 652 | else |
| 653 | cp++; |
| 654 | shell_uid(); |
| 655 | execl(value(SHELL), cp, "-c", s, 0); |
| 656 | } |
| 657 | |
| 658 | args(buf, a) |
| 659 | char *buf, *a[]; |
| 660 | { |
| 661 | register char *p = buf, *start; |
| 662 | register char **parg = a; |
| 663 | register int n = 0; |
| 664 | |
| 665 | do { |
| 666 | while (*p && (*p == ' ' || *p == '\t')) |
| 667 | p++; |
| 668 | start = p; |
| 669 | if (*p) |
| 670 | *parg = p; |
| 671 | while (*p && (*p != ' ' && *p != '\t')) |
| 672 | p++; |
| 673 | if (p != start) |
| 674 | parg++, n++; |
| 675 | if (*p) |
| 676 | *p++ = '\0'; |
| 677 | } while (*p); |
| 678 | |
| 679 | return(n); |
| 680 | } |
| 681 | |
| 682 | prtime(s, a) |
| 683 | char *s; |
| 684 | time_t a; |
| 685 | { |
| 686 | register i; |
| 687 | int nums[3]; |
| 688 | |
| 689 | for (i = 0; i < 3; i++) { |
| 690 | nums[i] = (int)(a % quant[i]); |
| 691 | a /= quant[i]; |
| 692 | } |
| 693 | printf("%s", s); |
| 694 | while (--i >= 0) |
| 695 | if (nums[i] || i == 0 && nums[1] == 0 && nums[2] == 0) |
| 696 | printf("%d %s%c ", nums[i], sep[i], |
| 697 | nums[i] == 1 ? '\0' : 's'); |
| 698 | printf("\r\n!\r\n"); |
| 699 | } |
| 700 | |
| 701 | variable() |
| 702 | { |
| 703 | char buf[256]; |
| 704 | |
| 705 | if (prompt("[set] ", buf)) |
| 706 | return; |
| 707 | vlex(buf); |
| 708 | if (vtable[BEAUTIFY].v_access&CHANGED) { |
| 709 | vtable[BEAUTIFY].v_access &= ~CHANGED; |
| 710 | kill(pid, SIGSYS); |
| 711 | } |
| 712 | if (vtable[SCRIPT].v_access&CHANGED) { |
| 713 | vtable[SCRIPT].v_access &= ~CHANGED; |
| 714 | setscript(); |
| 715 | /* |
| 716 | * So that "set record=blah script" doesn't |
| 717 | * cause two transactions to occur. |
| 718 | */ |
| 719 | if (vtable[RECORD].v_access&CHANGED) |
| 720 | vtable[RECORD].v_access &= ~CHANGED; |
| 721 | } |
| 722 | if (vtable[RECORD].v_access&CHANGED) { |
| 723 | vtable[RECORD].v_access &= ~CHANGED; |
| 724 | if (boolean(value(SCRIPT))) |
| 725 | setscript(); |
| 726 | } |
| 727 | if (vtable[TAND].v_access&CHANGED) { |
| 728 | vtable[TAND].v_access &= ~CHANGED; |
| 729 | if (boolean(value(TAND))) |
| 730 | tandem("on"); |
| 731 | else |
| 732 | tandem("off"); |
| 733 | } |
| 734 | if (vtable[LECHO].v_access&CHANGED) { |
| 735 | vtable[LECHO].v_access &= ~CHANGED; |
| 736 | HD = boolean(value(LECHO)); |
| 737 | } |
| 738 | if (vtable[PARITY].v_access&CHANGED) { |
| 739 | vtable[PARITY].v_access &= ~CHANGED; |
| 740 | setparity(); |
| 741 | } |
| 742 | } |
| 743 | |
| 744 | /* |
| 745 | * Turn tandem mode on or off for remote tty. |
| 746 | */ |
| 747 | tandem(option) |
| 748 | char *option; |
| 749 | { |
| 750 | struct sgttyb rmtty; |
| 751 | |
| 752 | ioctl(FD, TIOCGETP, &rmtty); |
| 753 | if (strcmp(option,"on") == 0) { |
| 754 | rmtty.sg_flags |= TANDEM; |
| 755 | arg.sg_flags |= TANDEM; |
| 756 | } else { |
| 757 | rmtty.sg_flags &= ~TANDEM; |
| 758 | arg.sg_flags &= ~TANDEM; |
| 759 | } |
| 760 | ioctl(FD, TIOCSETP, &rmtty); |
| 761 | ioctl(0, TIOCSETP, &arg); |
| 762 | } |
| 763 | |
| 764 | /* |
| 765 | * Send a break. |
| 766 | */ |
| 767 | genbrk() |
| 768 | { |
| 769 | |
| 770 | ioctl(FD, TIOCSBRK, NULL); |
| 771 | sleep(1); |
| 772 | ioctl(FD, TIOCCBRK, NULL); |
| 773 | } |
| 774 | |
| 775 | /* |
| 776 | * Suspend tip |
| 777 | */ |
| 778 | suspend(c) |
| 779 | char c; |
| 780 | { |
| 781 | |
| 782 | unraw(); |
| 783 | kill(c == CTRL('y') ? getpid() : 0, SIGTSTP); |
| 784 | raw(); |
| 785 | } |
| 786 | |
| 787 | /* |
| 788 | * expand a file name if it includes shell meta characters |
| 789 | */ |
| 790 | |
| 791 | char * |
| 792 | expand(name) |
| 793 | char name[]; |
| 794 | { |
| 795 | static char xname[BUFSIZ]; |
| 796 | char cmdbuf[BUFSIZ]; |
| 797 | register int pid, l, rc; |
| 798 | register char *cp, *Shell; |
| 799 | int s, pivec[2], (*sigint)(); |
| 800 | |
| 801 | if (!anyof(name, "~{[*?$`'\"\\")) |
| 802 | return(name); |
| 803 | /* sigint = signal(SIGINT, SIG_IGN); */ |
| 804 | if (pipe(pivec) < 0) { |
| 805 | perror("pipe"); |
| 806 | /* signal(SIGINT, sigint) */ |
| 807 | return(name); |
| 808 | } |
| 809 | sprintf(cmdbuf, "echo %s", name); |
| 810 | if ((pid = vfork()) == 0) { |
| 811 | Shell = value(SHELL); |
| 812 | if (Shell == NOSTR) |
| 813 | Shell = _PATH_BSHELL; |
| 814 | close(pivec[0]); |
| 815 | close(1); |
| 816 | dup(pivec[1]); |
| 817 | close(pivec[1]); |
| 818 | close(2); |
| 819 | shell_uid(); |
| 820 | execl(Shell, Shell, "-c", cmdbuf, 0); |
| 821 | _exit(1); |
| 822 | } |
| 823 | if (pid == -1) { |
| 824 | perror("fork"); |
| 825 | close(pivec[0]); |
| 826 | close(pivec[1]); |
| 827 | return(NOSTR); |
| 828 | } |
| 829 | close(pivec[1]); |
| 830 | l = read(pivec[0], xname, BUFSIZ); |
| 831 | close(pivec[0]); |
| 832 | while (wait(&s) != pid); |
| 833 | ; |
| 834 | s &= 0377; |
| 835 | if (s != 0 && s != SIGPIPE) { |
| 836 | fprintf(stderr, "\"Echo\" failed\n"); |
| 837 | return(NOSTR); |
| 838 | } |
| 839 | if (l < 0) { |
| 840 | perror("read"); |
| 841 | return(NOSTR); |
| 842 | } |
| 843 | if (l == 0) { |
| 844 | fprintf(stderr, "\"%s\": No match\n", name); |
| 845 | return(NOSTR); |
| 846 | } |
| 847 | if (l == BUFSIZ) { |
| 848 | fprintf(stderr, "Buffer overflow expanding \"%s\"\n", name); |
| 849 | return(NOSTR); |
| 850 | } |
| 851 | xname[l] = 0; |
| 852 | for (cp = &xname[l-1]; *cp == '\n' && cp > xname; cp--) |
| 853 | ; |
| 854 | *++cp = '\0'; |
| 855 | return(xname); |
| 856 | } |
| 857 | |
| 858 | /* |
| 859 | * Are any of the characters in the two strings the same? |
| 860 | */ |
| 861 | |
| 862 | anyof(s1, s2) |
| 863 | register char *s1, *s2; |
| 864 | { |
| 865 | register int c; |
| 866 | |
| 867 | while (c = *s1++) |
| 868 | if (any(c, s2)) |
| 869 | return(1); |
| 870 | return(0); |
| 871 | } |