1 /* 2 * Copyright (C) 1984-2019 Mark Nudelman 3 * 4 * You may distribute under the terms of either the GNU General Public 5 * License or the Less License, as specified in the README file. 6 * 7 * For more information, see the README file. 8 */ 9 10 11 /* 12 * lesskey [-o output] [input] 13 * 14 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 15 * 16 * Make a .less file. 17 * If no input file is specified, standard input is used. 18 * If no output file is specified, $HOME/.less is used. 19 * 20 * The .less file is used to specify (to "less") user-defined 21 * key bindings. Basically any sequence of 1 to MAX_CMDLEN 22 * keystrokes may be bound to an existing less function. 23 * 24 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 25 * 26 * The input file is an ascii file consisting of a 27 * sequence of lines of the form: 28 * string <whitespace> action [chars] <newline> 29 * 30 * "string" is a sequence of command characters which form 31 * the new user-defined command. The command 32 * characters may be: 33 * 1. The actual character itself. 34 * 2. A character preceded by ^ to specify a 35 * control character (e.g. ^X means control-X). 36 * 3. A backslash followed by one to three octal digits 37 * to specify a character by its octal value. 38 * 4. A backslash followed by b, e, n, r or t 39 * to specify \b, ESC, \n, \r or \t, respectively. 40 * 5. Any character (other than those mentioned above) preceded 41 * by a \ to specify the character itself (characters which 42 * must be preceded by \ include ^, \, and whitespace. 43 * "action" is the name of a "less" action, from the table below. 44 * "chars" is an optional sequence of characters which is treated 45 * as keyboard input after the command is executed. 46 * 47 * Blank lines and lines which start with # are ignored, 48 * except for the special control lines: 49 * #command Signals the beginning of the command 50 * keys section. 51 * #line-edit Signals the beginning of the line-editing 52 * keys section. 53 * #env Signals the beginning of the environment 54 * variable section. 55 * #stop Stops command parsing in less; 56 * causes all default keys to be disabled. 57 * 58 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 59 * 60 * The output file is a non-ascii file, consisting of a header, 61 * one or more sections, and a trailer. 62 * Each section begins with a section header, a section length word 63 * and the section data. Normally there are three sections: 64 * CMD_SECTION Definition of command keys. 65 * EDIT_SECTION Definition of editing keys. 66 * END_SECTION A special section header, with no 67 * length word or section data. 68 * 69 * Section data consists of zero or more byte sequences of the form: 70 * string <0> <action> 71 * or 72 * string <0> <action|A_EXTRA> chars <0> 73 * 74 * "string" is the command string. 75 * "<0>" is one null byte. 76 * "<action>" is one byte containing the action code (the A_xxx value). 77 * If action is ORed with A_EXTRA, the action byte is followed 78 * by the null-terminated "chars" string. 79 * 80 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 81 */ 82 83 #include "less.h" 84 #include "lesskey.h" 85 #include "cmd.h" 86 87 struct cmdname 88 { 89 char *cn_name; 90 int cn_action; 91 }; 92 93 struct cmdname cmdnames[] = 94 { 95 { "back-bracket", A_B_BRACKET }, 96 { "back-line", A_B_LINE }, 97 { "back-line-force", A_BF_LINE }, 98 { "back-screen", A_B_SCREEN }, 99 { "back-scroll", A_B_SCROLL }, 100 { "back-search", A_B_SEARCH }, 101 { "back-window", A_B_WINDOW }, 102 { "clear-mark", A_CLRMARK }, 103 { "debug", A_DEBUG }, 104 { "digit", A_DIGIT }, 105 { "display-flag", A_DISP_OPTION }, 106 { "display-option", A_DISP_OPTION }, 107 { "end", A_GOEND }, 108 { "end-scroll", A_RRSHIFT }, 109 { "examine", A_EXAMINE }, 110 { "filter", A_FILTER }, 111 { "first-cmd", A_FIRSTCMD }, 112 { "firstcmd", A_FIRSTCMD }, 113 { "flush-repaint", A_FREPAINT }, 114 { "forw-bracket", A_F_BRACKET }, 115 { "forw-forever", A_F_FOREVER }, 116 { "forw-until-hilite", A_F_UNTIL_HILITE }, 117 { "forw-line", A_F_LINE }, 118 { "forw-line-force", A_FF_LINE }, 119 { "forw-screen", A_F_SCREEN }, 120 { "forw-screen-force", A_FF_SCREEN }, 121 { "forw-scroll", A_F_SCROLL }, 122 { "forw-search", A_F_SEARCH }, 123 { "forw-window", A_F_WINDOW }, 124 { "goto-end", A_GOEND }, 125 { "goto-end-buffered", A_GOEND_BUF }, 126 { "goto-line", A_GOLINE }, 127 { "goto-mark", A_GOMARK }, 128 { "help", A_HELP }, 129 { "index-file", A_INDEX_FILE }, 130 { "invalid", A_UINVALID }, 131 { "left-scroll", A_LSHIFT }, 132 { "next-file", A_NEXT_FILE }, 133 { "next-tag", A_NEXT_TAG }, 134 { "noaction", A_NOACTION }, 135 { "no-scroll", A_LLSHIFT }, 136 { "percent", A_PERCENT }, 137 { "pipe", A_PIPE }, 138 { "prev-file", A_PREV_FILE }, 139 { "prev-tag", A_PREV_TAG }, 140 { "quit", A_QUIT }, 141 { "remove-file", A_REMOVE_FILE }, 142 { "repaint", A_REPAINT }, 143 { "repaint-flush", A_FREPAINT }, 144 { "repeat-search", A_AGAIN_SEARCH }, 145 { "repeat-search-all", A_T_AGAIN_SEARCH }, 146 { "reverse-search", A_REVERSE_SEARCH }, 147 { "reverse-search-all", A_T_REVERSE_SEARCH }, 148 { "right-scroll", A_RSHIFT }, 149 { "set-mark", A_SETMARK }, 150 { "set-mark-bottom", A_SETMARKBOT }, 151 { "shell", A_SHELL }, 152 { "status", A_STAT }, 153 { "toggle-flag", A_OPT_TOGGLE }, 154 { "toggle-option", A_OPT_TOGGLE }, 155 { "undo-hilite", A_UNDO_SEARCH }, 156 { "version", A_VERSION }, 157 { "visual", A_VISUAL }, 158 { NULL, 0 } 159 }; 160 161 struct cmdname editnames[] = 162 { 163 { "back-complete", EC_B_COMPLETE }, 164 { "backspace", EC_BACKSPACE }, 165 { "delete", EC_DELETE }, 166 { "down", EC_DOWN }, 167 { "end", EC_END }, 168 { "expand", EC_EXPAND }, 169 { "forw-complete", EC_F_COMPLETE }, 170 { "home", EC_HOME }, 171 { "insert", EC_INSERT }, 172 { "invalid", EC_UINVALID }, 173 { "kill-line", EC_LINEKILL }, 174 { "abort", EC_ABORT }, 175 { "left", EC_LEFT }, 176 { "literal", EC_LITERAL }, 177 { "right", EC_RIGHT }, 178 { "up", EC_UP }, 179 { "word-backspace", EC_W_BACKSPACE }, 180 { "word-delete", EC_W_DELETE }, 181 { "word-left", EC_W_LEFT }, 182 { "word-right", EC_W_RIGHT }, 183 { NULL, 0 } 184 }; 185 186 struct table 187 { 188 struct cmdname *names; 189 char *pbuffer; 190 char buffer[MAX_USERCMD]; 191 }; 192 193 struct table cmdtable; 194 struct table edittable; 195 struct table vartable; 196 struct table *currtable = &cmdtable; 197 198 char fileheader[] = { 199 C0_LESSKEY_MAGIC, 200 C1_LESSKEY_MAGIC, 201 C2_LESSKEY_MAGIC, 202 C3_LESSKEY_MAGIC 203 }; 204 char filetrailer[] = { 205 C0_END_LESSKEY_MAGIC, 206 C1_END_LESSKEY_MAGIC, 207 C2_END_LESSKEY_MAGIC 208 }; 209 char cmdsection[1] = { CMD_SECTION }; 210 char editsection[1] = { EDIT_SECTION }; 211 char varsection[1] = { VAR_SECTION }; 212 char endsection[1] = { END_SECTION }; 213 214 char *infile = NULL; 215 char *outfile = NULL ; 216 217 int linenum; 218 int errors; 219 220 extern char version[]; 221 222 void 223 usage(VOID_PARAM) 224 { 225 fprintf(stderr, "usage: lesskey [-o output] [input]\n"); 226 exit(1); 227 } 228 229 char * 230 mkpathname(dirname, filename) 231 char *dirname; 232 char *filename; 233 { 234 char *pathname; 235 236 pathname = calloc(strlen(dirname) + strlen(filename) + 2, sizeof(char)); 237 strcpy(pathname, dirname); 238 strcat(pathname, PATHNAME_SEP); 239 strcat(pathname, filename); 240 return (pathname); 241 } 242 243 /* 244 * Figure out the name of a default file (in the user's HOME directory). 245 */ 246 char * 247 homefile(filename) 248 char *filename; 249 { 250 char *p; 251 char *pathname; 252 253 if ((p = getenv("HOME")) != NULL && *p != '\0') 254 pathname = mkpathname(p, filename); 255 #if OS2 256 else if ((p = getenv("INIT")) != NULL && *p != '\0') 257 pathname = mkpathname(p, filename); 258 #endif 259 else 260 { 261 fprintf(stderr, "cannot find $HOME - using current directory\n"); 262 pathname = mkpathname(".", filename); 263 } 264 return (pathname); 265 } 266 267 /* 268 * Parse command line arguments. 269 */ 270 void 271 parse_args(argc, argv) 272 int argc; 273 char **argv; 274 { 275 char *arg; 276 277 outfile = NULL; 278 while (--argc > 0) 279 { 280 arg = *++argv; 281 if (arg[0] != '-') 282 /* Arg does not start with "-"; it's not an option. */ 283 break; 284 if (arg[1] == '\0') 285 /* "-" means standard input. */ 286 break; 287 if (arg[1] == '-' && arg[2] == '\0') 288 { 289 /* "--" means end of options. */ 290 argc--; 291 argv++; 292 break; 293 } 294 switch (arg[1]) 295 { 296 case '-': 297 if (strncmp(arg, "--output", 8) == 0) 298 { 299 if (arg[8] == '\0') 300 outfile = &arg[8]; 301 else if (arg[8] == '=') 302 outfile = &arg[9]; 303 else 304 usage(); 305 goto opt_o; 306 } 307 if (strcmp(arg, "--version") == 0) 308 { 309 goto opt_V; 310 } 311 usage(); 312 break; 313 case 'o': 314 outfile = &argv[0][2]; 315 opt_o: 316 if (*outfile == '\0') 317 { 318 if (--argc <= 0) 319 usage(); 320 outfile = *(++argv); 321 } 322 break; 323 case 'V': 324 opt_V: 325 printf("lesskey version %s\n", version); 326 exit(0); 327 default: 328 usage(); 329 } 330 } 331 if (argc > 1) 332 usage(); 333 /* 334 * Open the input file, or use DEF_LESSKEYINFILE if none specified. 335 */ 336 if (argc > 0) 337 infile = *argv; 338 else 339 infile = homefile(DEF_LESSKEYINFILE); 340 } 341 342 /* 343 * Initialize data structures. 344 */ 345 void 346 init_tables(VOID_PARAM) 347 { 348 cmdtable.names = cmdnames; 349 cmdtable.pbuffer = cmdtable.buffer; 350 351 edittable.names = editnames; 352 edittable.pbuffer = edittable.buffer; 353 354 vartable.names = NULL; 355 vartable.pbuffer = vartable.buffer; 356 } 357 358 /* 359 * Parse one character of a string. 360 */ 361 char * 362 tstr(pp, xlate) 363 char **pp; 364 int xlate; 365 { 366 char *p; 367 char ch; 368 int i; 369 static char buf[10]; 370 static char tstr_control_k[] = 371 { SK_SPECIAL_KEY, SK_CONTROL_K, 6, 1, 1, 1, '\0' }; 372 373 p = *pp; 374 switch (*p) 375 { 376 case '\\': 377 ++p; 378 switch (*p) 379 { 380 case '0': case '1': case '2': case '3': 381 case '4': case '5': case '6': case '7': 382 /* 383 * Parse an octal number. 384 */ 385 ch = 0; 386 i = 0; 387 do 388 ch = 8*ch + (*p - '0'); 389 while (*++p >= '0' && *p <= '7' && ++i < 3); 390 *pp = p; 391 if (xlate && ch == CONTROL('K')) 392 return tstr_control_k; 393 buf[0] = ch; 394 buf[1] = '\0'; 395 return (buf); 396 case 'b': 397 *pp = p+1; 398 return ("\b"); 399 case 'e': 400 *pp = p+1; 401 buf[0] = ESC; 402 buf[1] = '\0'; 403 return (buf); 404 case 'n': 405 *pp = p+1; 406 return ("\n"); 407 case 'r': 408 *pp = p+1; 409 return ("\r"); 410 case 't': 411 *pp = p+1; 412 return ("\t"); 413 case 'k': 414 if (xlate) 415 { 416 switch (*++p) 417 { 418 case 'u': ch = SK_UP_ARROW; break; 419 case 'd': ch = SK_DOWN_ARROW; break; 420 case 'r': ch = SK_RIGHT_ARROW; break; 421 case 'l': ch = SK_LEFT_ARROW; break; 422 case 'U': ch = SK_PAGE_UP; break; 423 case 'D': ch = SK_PAGE_DOWN; break; 424 case 'h': ch = SK_HOME; break; 425 case 'e': ch = SK_END; break; 426 case 'x': ch = SK_DELETE; break; 427 default: 428 error("illegal char after \\k", NULL_PARG); 429 *pp = p+1; 430 return (""); 431 } 432 *pp = p+1; 433 buf[0] = SK_SPECIAL_KEY; 434 buf[1] = ch; 435 buf[2] = 6; 436 buf[3] = 1; 437 buf[4] = 1; 438 buf[5] = 1; 439 buf[6] = '\0'; 440 return (buf); 441 } 442 /* FALLTHRU */ 443 default: 444 /* 445 * Backslash followed by any other char 446 * just means that char. 447 */ 448 *pp = p+1; 449 buf[0] = *p; 450 buf[1] = '\0'; 451 if (xlate && buf[0] == CONTROL('K')) 452 return tstr_control_k; 453 return (buf); 454 } 455 case '^': 456 /* 457 * Caret means CONTROL. 458 */ 459 *pp = p+2; 460 buf[0] = CONTROL(p[1]); 461 buf[1] = '\0'; 462 if (buf[0] == CONTROL('K')) 463 return tstr_control_k; 464 return (buf); 465 } 466 *pp = p+1; 467 buf[0] = *p; 468 buf[1] = '\0'; 469 if (xlate && buf[0] == CONTROL('K')) 470 return tstr_control_k; 471 return (buf); 472 } 473 474 /* 475 * Skip leading spaces in a string. 476 */ 477 public char * 478 skipsp(s) 479 char *s; 480 { 481 while (*s == ' ' || *s == '\t') 482 s++; 483 return (s); 484 } 485 486 /* 487 * Skip non-space characters in a string. 488 */ 489 public char * 490 skipnsp(s) 491 char *s; 492 { 493 while (*s != '\0' && *s != ' ' && *s != '\t') 494 s++; 495 return (s); 496 } 497 498 /* 499 * Clean up an input line: 500 * strip off the trailing newline & any trailing # comment. 501 */ 502 char * 503 clean_line(s) 504 char *s; 505 { 506 int i; 507 508 s = skipsp(s); 509 for (i = 0; s[i] != '\n' && s[i] != '\r' && s[i] != '\0'; i++) 510 if (s[i] == '#' && (i == 0 || s[i-1] != '\\')) 511 break; 512 s[i] = '\0'; 513 return (s); 514 } 515 516 /* 517 * Add a byte to the output command table. 518 */ 519 void 520 add_cmd_char(c) 521 int c; 522 { 523 if (currtable->pbuffer >= currtable->buffer + MAX_USERCMD) 524 { 525 error("too many commands", NULL_PARG); 526 exit(1); 527 } 528 *(currtable->pbuffer)++ = c; 529 } 530 531 /* 532 * Add a string to the output command table. 533 */ 534 void 535 add_cmd_str(s) 536 char *s; 537 { 538 for ( ; *s != '\0'; s++) 539 add_cmd_char(*s); 540 } 541 542 /* 543 * See if we have a special "control" line. 544 */ 545 int 546 control_line(s) 547 char *s; 548 { 549 #define PREFIX(str,pat) (strncmp(str,pat,strlen(pat)) == 0) 550 551 if (PREFIX(s, "#line-edit")) 552 { 553 currtable = &edittable; 554 return (1); 555 } 556 if (PREFIX(s, "#command")) 557 { 558 currtable = &cmdtable; 559 return (1); 560 } 561 if (PREFIX(s, "#env")) 562 { 563 currtable = &vartable; 564 return (1); 565 } 566 if (PREFIX(s, "#stop")) 567 { 568 add_cmd_char('\0'); 569 add_cmd_char(A_END_LIST); 570 return (1); 571 } 572 return (0); 573 } 574 575 /* 576 * Output some bytes. 577 */ 578 void 579 fputbytes(fd, buf, len) 580 FILE *fd; 581 char *buf; 582 int len; 583 { 584 while (len-- > 0) 585 { 586 fwrite(buf, sizeof(char), 1, fd); 587 buf++; 588 } 589 } 590 591 /* 592 * Output an integer, in special KRADIX form. 593 */ 594 void 595 fputint(fd, val) 596 FILE *fd; 597 unsigned int val; 598 { 599 char c; 600 601 if (val >= KRADIX*KRADIX) 602 { 603 fprintf(stderr, "error: integer too big (%d > %d)\n", 604 val, KRADIX*KRADIX); 605 exit(1); 606 } 607 c = val % KRADIX; 608 fwrite(&c, sizeof(char), 1, fd); 609 c = val / KRADIX; 610 fwrite(&c, sizeof(char), 1, fd); 611 } 612 613 /* 614 * Find an action, given the name of the action. 615 */ 616 int 617 findaction(actname) 618 char *actname; 619 { 620 int i; 621 622 for (i = 0; currtable->names[i].cn_name != NULL; i++) 623 if (strcmp(currtable->names[i].cn_name, actname) == 0) 624 return (currtable->names[i].cn_action); 625 error("unknown action", NULL_PARG); 626 return (A_INVALID); 627 } 628 629 void 630 error(s, parg) 631 char *s; 632 PARG *parg; 633 { 634 fprintf(stderr, "line %d: %s\n", linenum, s); 635 errors++; 636 (void) parg; 637 } 638 639 640 void 641 parse_cmdline(p) 642 char *p; 643 { 644 int cmdlen; 645 char *actname; 646 int action; 647 char *s; 648 char c; 649 650 /* 651 * Parse the command string and store it in the current table. 652 */ 653 cmdlen = 0; 654 do 655 { 656 s = tstr(&p, 1); 657 cmdlen += (int) strlen(s); 658 if (cmdlen > MAX_CMDLEN) 659 error("command too long", NULL_PARG); 660 else 661 add_cmd_str(s); 662 } while (*p != ' ' && *p != '\t' && *p != '\0'); 663 /* 664 * Terminate the command string with a null byte. 665 */ 666 add_cmd_char('\0'); 667 668 /* 669 * Skip white space between the command string 670 * and the action name. 671 * Terminate the action name with a null byte. 672 */ 673 p = skipsp(p); 674 if (*p == '\0') 675 { 676 error("missing action", NULL_PARG); 677 return; 678 } 679 actname = p; 680 p = skipnsp(p); 681 c = *p; 682 *p = '\0'; 683 684 /* 685 * Parse the action name and store it in the current table. 686 */ 687 action = findaction(actname); 688 689 /* 690 * See if an extra string follows the action name. 691 */ 692 *p = c; 693 p = skipsp(p); 694 if (*p == '\0') 695 { 696 add_cmd_char(action); 697 } else 698 { 699 /* 700 * OR the special value A_EXTRA into the action byte. 701 * Put the extra string after the action byte. 702 */ 703 add_cmd_char(action | A_EXTRA); 704 while (*p != '\0') 705 add_cmd_str(tstr(&p, 0)); 706 add_cmd_char('\0'); 707 } 708 } 709 710 void 711 parse_varline(p) 712 char *p; 713 { 714 char *s; 715 716 do 717 { 718 s = tstr(&p, 0); 719 add_cmd_str(s); 720 } while (*p != ' ' && *p != '\t' && *p != '=' && *p != '\0'); 721 /* 722 * Terminate the variable name with a null byte. 723 */ 724 add_cmd_char('\0'); 725 726 p = skipsp(p); 727 if (*p++ != '=') 728 { 729 error("missing =", NULL_PARG); 730 return; 731 } 732 733 add_cmd_char(EV_OK|A_EXTRA); 734 735 p = skipsp(p); 736 while (*p != '\0') 737 { 738 s = tstr(&p, 0); 739 add_cmd_str(s); 740 } 741 add_cmd_char('\0'); 742 } 743 744 /* 745 * Parse a line from the lesskey file. 746 */ 747 void 748 parse_line(line) 749 char *line; 750 { 751 char *p; 752 753 /* 754 * See if it is a control line. 755 */ 756 if (control_line(line)) 757 return; 758 /* 759 * Skip leading white space. 760 * Replace the final newline with a null byte. 761 * Ignore blank lines and comments. 762 */ 763 p = clean_line(line); 764 if (*p == '\0') 765 return; 766 767 if (currtable == &vartable) 768 parse_varline(p); 769 else 770 parse_cmdline(p); 771 } 772 773 int 774 main(argc, argv) 775 int argc; 776 char *argv[]; 777 { 778 FILE *desc; 779 FILE *out; 780 char line[1024]; 781 782 #ifdef WIN32 783 if (getenv("HOME") == NULL) 784 { 785 /* 786 * If there is no HOME environment variable, 787 * try the concatenation of HOMEDRIVE + HOMEPATH. 788 */ 789 char *drive = getenv("HOMEDRIVE"); 790 char *path = getenv("HOMEPATH"); 791 if (drive != NULL && path != NULL) 792 { 793 char *env = (char *) calloc(strlen(drive) + 794 strlen(path) + 6, sizeof(char)); 795 strcpy(env, "HOME="); 796 strcat(env, drive); 797 strcat(env, path); 798 putenv(env); 799 } 800 } 801 #endif /* WIN32 */ 802 803 /* 804 * Process command line arguments. 805 */ 806 parse_args(argc, argv); 807 init_tables(); 808 809 /* 810 * Open the input file. 811 */ 812 if (strcmp(infile, "-") == 0) 813 desc = stdin; 814 else if ((desc = fopen(infile, "r")) == NULL) 815 { 816 #if HAVE_PERROR 817 perror(infile); 818 #else 819 fprintf(stderr, "Cannot open %s\n", infile); 820 #endif 821 usage(); 822 } 823 824 /* 825 * Read and parse the input file, one line at a time. 826 */ 827 errors = 0; 828 linenum = 0; 829 while (fgets(line, sizeof(line), desc) != NULL) 830 { 831 ++linenum; 832 parse_line(line); 833 } 834 835 /* 836 * Write the output file. 837 * If no output file was specified, use "$HOME/.less" 838 */ 839 if (errors > 0) 840 { 841 fprintf(stderr, "%d errors; no output produced\n", errors); 842 exit(1); 843 } 844 845 if (outfile == NULL) 846 outfile = getenv("LESSKEY"); 847 if (outfile == NULL) 848 outfile = homefile(LESSKEYFILE); 849 if ((out = fopen(outfile, "wb")) == NULL) 850 { 851 #if HAVE_PERROR 852 perror(outfile); 853 #else 854 fprintf(stderr, "Cannot open %s\n", outfile); 855 #endif 856 exit(1); 857 } 858 859 /* File header */ 860 fputbytes(out, fileheader, sizeof(fileheader)); 861 862 /* Command key section */ 863 fputbytes(out, cmdsection, sizeof(cmdsection)); 864 fputint(out, cmdtable.pbuffer - cmdtable.buffer); 865 fputbytes(out, (char *)cmdtable.buffer, cmdtable.pbuffer-cmdtable.buffer); 866 /* Edit key section */ 867 fputbytes(out, editsection, sizeof(editsection)); 868 fputint(out, edittable.pbuffer - edittable.buffer); 869 fputbytes(out, (char *)edittable.buffer, edittable.pbuffer-edittable.buffer); 870 871 /* Environment variable section */ 872 fputbytes(out, varsection, sizeof(varsection)); 873 fputint(out, vartable.pbuffer - vartable.buffer); 874 fputbytes(out, (char *)vartable.buffer, vartable.pbuffer-vartable.buffer); 875 876 /* File trailer */ 877 fputbytes(out, endsection, sizeof(endsection)); 878 fputbytes(out, filetrailer, sizeof(filetrailer)); 879 return (0); 880 } 881