makemandb.c revision 1.49
1 /* $NetBSD: makemandb.c,v 1.49 2017/04/29 16:49:51 abhinav Exp $ */ 2 /* 3 * Copyright (c) 2011 Abhinav Upadhyay <er.abhinav.upadhyay (at) gmail.com> 4 * Copyright (c) 2011 Kristaps Dzonsons <kristaps (at) bsd.lv> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #include <sys/cdefs.h> 20 __RCSID("$NetBSD: makemandb.c,v 1.49 2017/04/29 16:49:51 abhinav Exp $"); 21 22 #include <sys/stat.h> 23 #include <sys/types.h> 24 25 #include <assert.h> 26 #include <dirent.h> 27 #include <err.h> 28 #include <archive.h> 29 #include <libgen.h> 30 #include <md5.h> 31 #include <stdio.h> 32 #include <stdlib.h> 33 #include <string.h> 34 #include <unistd.h> 35 #include <util.h> 36 37 #include "apropos-utils.h" 38 #include "dist/man.h" 39 #include "dist/mandoc.h" 40 #include "dist/mdoc.h" 41 #include "dist/roff.h" 42 43 #define BUFLEN 1024 44 #define MDOC 0 //If the page is of mdoc(7) type 45 #define MAN 1 //If the page is of man(7) type 46 47 /* 48 * A data structure for holding section specific data. 49 */ 50 typedef struct secbuff { 51 char *data; 52 size_t buflen; //Total length of buffer allocated initially 53 size_t offset; // Current offset in the buffer. 54 } secbuff; 55 56 typedef struct makemandb_flags { 57 int optimize; 58 int limit; // limit the indexing to only NAME section 59 int recreate; // Database was created from scratch 60 int verbosity; // 0: quiet, 1: default, 2: verbose 61 } makemandb_flags; 62 63 typedef struct roff_mandb_rec { 64 /* Fields for mandb table */ 65 char *name; // for storing the name of the man page 66 char *name_desc; // for storing the one line description (.Nd) 67 secbuff desc; // for storing the DESCRIPTION section 68 secbuff lib; // for the LIBRARY section 69 secbuff return_vals; // RETURN VALUES 70 secbuff env; // ENVIRONMENT 71 secbuff files; // FILES 72 secbuff exit_status; // EXIT STATUS 73 secbuff diagnostics; // DIAGNOSTICS 74 secbuff errors; // ERRORS 75 char *section; 76 77 int xr_found; // To track whether a .Xr was seen when parsing a section 78 79 /* Fields for mandb_meta table */ 80 char *md5_hash; 81 dev_t device; 82 ino_t inode; 83 time_t mtime; 84 85 /* Fields for mandb_links table */ 86 char *machine; 87 char *links; //all the links to a page in a space separated form 88 char *file_path; 89 90 /* Non-db fields */ 91 int page_type; //Indicates the type of page: mdoc or man 92 } mandb_rec; 93 94 typedef void (*proff_nf)(const struct roff_node *n, mandb_rec *); 95 96 static void append(secbuff *sbuff, const char *src); 97 static void init_secbuffs(mandb_rec *); 98 static void free_secbuffs(mandb_rec *); 99 static int check_md5(const char *, sqlite3 *, const char *, char **, void *, size_t); 100 static void cleanup(mandb_rec *); 101 static void set_section(const struct roff_man *, mandb_rec *); 102 static void set_machine(const struct roff_man *, mandb_rec *); 103 static int insert_into_db(sqlite3 *, mandb_rec *); 104 static void begin_parse(const char *, struct mparse *, mandb_rec *, 105 const void *, size_t len); 106 static void proff_node(const struct roff_node *, mandb_rec *, const proff_nf *); 107 static void pmdoc_Nm(const struct roff_node *, mandb_rec *); 108 static void pmdoc_Nd(const struct roff_node *, mandb_rec *); 109 static void pmdoc_Sh(const struct roff_node *, mandb_rec *); 110 static void mdoc_parse_Sh(const struct roff_node *, mandb_rec *); 111 static void pmdoc_Xr(const struct roff_node *, mandb_rec *); 112 static void pmdoc_Pp(const struct roff_node *, mandb_rec *); 113 static void pmdoc_macro_handler(const struct roff_node *, mandb_rec *, int); 114 static void pman_parse_node(const struct roff_node *, secbuff *); 115 static void pman_parse_name(const struct roff_node *, mandb_rec *); 116 static void pman_sh(const struct roff_node *, mandb_rec *); 117 static void pman_block(const struct roff_node *, mandb_rec *); 118 static void traversedir(const char *, const char *, sqlite3 *, struct mparse *); 119 static void mdoc_parse_section(enum roff_sec, const char *, mandb_rec *); 120 static void man_parse_section(enum man_sec, const struct roff_node *, mandb_rec *); 121 static void build_file_cache(sqlite3 *, const char *, const char *, 122 struct stat *); 123 static void update_db(sqlite3 *, struct mparse *, mandb_rec *); 124 __dead static void usage(void); 125 static void optimize(sqlite3 *); 126 static char *parse_escape(const char *); 127 static void replace_hyph(char *); 128 static makemandb_flags mflags = { .verbosity = 1 }; 129 130 static const proff_nf mdocs[MDOC_MAX + 1] = { 131 NULL, /* Ap */ 132 NULL, /* Dd */ 133 NULL, /* Dt */ 134 NULL, /* Os */ 135 136 pmdoc_Sh, /* Sh */ 137 NULL, /* Ss */ 138 pmdoc_Pp, /* Pp */ 139 NULL, /* D1 */ 140 141 NULL, /* Dl */ 142 NULL, /* Bd */ 143 NULL, /* Ed */ 144 NULL, /* Bl */ 145 146 NULL, /* El */ 147 NULL, /* It */ 148 NULL, /* Ad */ 149 NULL, /* An */ 150 151 NULL, /* Ar */ 152 NULL, /* Cd */ 153 NULL, /* Cm */ 154 NULL, /* Dv */ 155 156 NULL, /* Er */ 157 NULL, /* Ev */ 158 NULL, /* Ex */ 159 NULL, /* Fa */ 160 161 NULL, /* Fd */ 162 NULL, /* Fl */ 163 NULL, /* Fn */ 164 NULL, /* Ft */ 165 166 NULL, /* Ic */ 167 NULL, /* In */ 168 NULL, /* Li */ 169 pmdoc_Nd, /* Nd */ 170 171 pmdoc_Nm, /* Nm */ 172 NULL, /* Op */ 173 NULL, /* Ot */ 174 NULL, /* Pa */ 175 176 NULL, /* Rv */ 177 NULL, /* St */ 178 NULL, /* Va */ 179 NULL, /* Vt */ 180 181 pmdoc_Xr, /* Xr */ 182 NULL, /* %A */ 183 NULL, /* %B */ 184 NULL, /* %D */ 185 186 NULL, /* %I */ 187 NULL, /* %J */ 188 NULL, /* %N */ 189 NULL, /* %O */ 190 191 NULL, /* %P */ 192 NULL, /* %R */ 193 NULL, /* %T */ 194 NULL, /* %V */ 195 196 NULL, /* Ac */ 197 NULL, /* Ao */ 198 NULL, /* Aq */ 199 NULL, /* At */ 200 201 NULL, /* Bc */ 202 NULL, /* Bf */ 203 NULL, /* Bo */ 204 NULL, /* Bq */ 205 206 NULL, /* Bsx */ 207 NULL, /* Bx */ 208 NULL, /* Db */ 209 NULL, /* Dc */ 210 211 NULL, /* Do */ 212 NULL, /* Dq */ 213 NULL, /* Ec */ 214 NULL, /* Ef */ 215 216 NULL, /* Em */ 217 NULL, /* Eo */ 218 NULL, /* Fx */ 219 NULL, /* Ms */ 220 221 NULL, /* No */ 222 NULL, /* Ns */ 223 NULL, /* Nx */ 224 NULL, /* Ox */ 225 226 NULL, /* Pc */ 227 NULL, /* Pf */ 228 NULL, /* Po */ 229 NULL, /* Pq */ 230 231 NULL, /* Qc */ 232 NULL, /* Ql */ 233 NULL, /* Qo */ 234 NULL, /* Qq */ 235 236 NULL, /* Re */ 237 NULL, /* Rs */ 238 NULL, /* Sc */ 239 NULL, /* So */ 240 241 NULL, /* Sq */ 242 NULL, /* Sm */ 243 NULL, /* Sx */ 244 NULL, /* Sy */ 245 246 NULL, /* Tn */ 247 NULL, /* Ux */ 248 NULL, /* Xc */ 249 NULL, /* Xo */ 250 251 NULL, /* Fo */ 252 NULL, /* Fc */ 253 NULL, /* Oo */ 254 NULL, /* Oc */ 255 256 NULL, /* Bk */ 257 NULL, /* Ek */ 258 NULL, /* Bt */ 259 NULL, /* Hf */ 260 261 NULL, /* Fr */ 262 NULL, /* Ud */ 263 NULL, /* Lb */ 264 NULL, /* Lp */ 265 266 NULL, /* Lk */ 267 NULL, /* Mt */ 268 NULL, /* Brq */ 269 NULL, /* Bro */ 270 271 NULL, /* Brc */ 272 NULL, /* %C */ 273 NULL, /* Es */ 274 NULL, /* En */ 275 276 NULL, /* Dx */ 277 NULL, /* %Q */ 278 NULL, /* br */ 279 NULL, /* sp */ 280 281 NULL, /* %U */ 282 NULL, /* Ta */ 283 NULL, /* ll */ 284 NULL, /* text */ 285 }; 286 287 static const proff_nf mans[MAN_MAX] = { 288 NULL, //br 289 NULL, //TH 290 pman_sh, //SH 291 NULL, //SS 292 NULL, //TP 293 NULL, //LP 294 NULL, //PP 295 NULL, //P 296 NULL, //IP 297 NULL, //HP 298 NULL, //SM 299 NULL, //SB 300 NULL, //BI 301 NULL, //IB 302 NULL, //BR 303 NULL, //RB 304 NULL, //R 305 pman_block, //B 306 NULL, //I 307 NULL, //IR 308 NULL, //RI 309 NULL, //sp 310 NULL, //nf 311 NULL, //fi 312 NULL, //RE 313 NULL, //RS 314 NULL, //DT 315 NULL, //UC 316 NULL, //PD 317 NULL, //AT 318 NULL, //in 319 NULL, //ft 320 NULL, //OP 321 NULL, //EX 322 NULL, //EE 323 NULL, //UR 324 NULL, //UE 325 NULL, //ll 326 }; 327 328 329 int 330 main(int argc, char *argv[]) 331 { 332 FILE *file; 333 const char *sqlstr, *manconf = NULL; 334 char *line, *command, *parent; 335 char *errmsg; 336 int ch; 337 struct mparse *mp; 338 sqlite3 *db; 339 ssize_t len; 340 size_t linesize; 341 struct roff_mandb_rec rec; 342 343 while ((ch = getopt(argc, argv, "C:floQqv")) != -1) { 344 switch (ch) { 345 case 'C': 346 manconf = optarg; 347 break; 348 case 'f': 349 mflags.recreate = 1; 350 break; 351 case 'l': 352 mflags.limit = 1; 353 break; 354 case 'o': 355 mflags.optimize = 1; 356 break; 357 case 'Q': 358 mflags.verbosity = 0; 359 break; 360 case 'q': 361 mflags.verbosity = 1; 362 break; 363 case 'v': 364 mflags.verbosity = 2; 365 break; 366 default: 367 usage(); 368 } 369 } 370 371 memset(&rec, 0, sizeof(rec)); 372 373 init_secbuffs(&rec); 374 mchars_alloc(); 375 mp = mparse_alloc(0, MANDOCLEVEL_BADARG, NULL, NULL); 376 377 if (manconf) { 378 char *arg; 379 size_t command_len = shquote(manconf, NULL, 0) + 1; 380 arg = emalloc(command_len); 381 shquote(manconf, arg, command_len); 382 easprintf(&command, "man -p -C %s", arg); 383 free(arg); 384 } else { 385 command = estrdup("man -p"); 386 manconf = MANCONF; 387 } 388 389 if (mflags.recreate) { 390 char *dbp = get_dbpath(manconf); 391 /* No error here, it will fail in init_db in the same call */ 392 if (dbp != NULL) 393 remove(dbp); 394 } 395 396 if ((db = init_db(MANDB_CREATE, manconf)) == NULL) 397 exit(EXIT_FAILURE); 398 399 sqlite3_exec(db, "PRAGMA synchronous = 0", NULL, NULL, &errmsg); 400 if (errmsg != NULL) { 401 warnx("%s", errmsg); 402 free(errmsg); 403 close_db(db); 404 exit(EXIT_FAILURE); 405 } 406 407 sqlite3_exec(db, "ATTACH DATABASE \':memory:\' AS metadb", NULL, NULL, 408 &errmsg); 409 if (errmsg != NULL) { 410 warnx("%s", errmsg); 411 free(errmsg); 412 close_db(db); 413 exit(EXIT_FAILURE); 414 } 415 416 417 /* Call man -p to get the list of man page dirs */ 418 if ((file = popen(command, "r")) == NULL) { 419 close_db(db); 420 err(EXIT_FAILURE, "fopen failed"); 421 } 422 free(command); 423 424 /* Begin the transaction for indexing the pages */ 425 sqlite3_exec(db, "BEGIN", NULL, NULL, &errmsg); 426 if (errmsg != NULL) { 427 warnx("%s", errmsg); 428 free(errmsg); 429 close_db(db); 430 exit(EXIT_FAILURE); 431 } 432 433 sqlstr = "CREATE TABLE metadb.file_cache(device, inode, mtime, parent," 434 " file PRIMARY KEY);" 435 "CREATE UNIQUE INDEX metadb.index_file_cache_dev" 436 " ON file_cache (device, inode)"; 437 438 sqlite3_exec(db, sqlstr, NULL, NULL, &errmsg); 439 if (errmsg != NULL) { 440 warnx("%s", errmsg); 441 free(errmsg); 442 close_db(db); 443 exit(EXIT_FAILURE); 444 } 445 446 if (mflags.verbosity) 447 printf("Building temporary file cache\n"); 448 line = NULL; 449 linesize = 0; 450 while ((len = getline(&line, &linesize, file)) != -1) { 451 /* Replace the new line character at the end of string with '\0' */ 452 line[len - 1] = '\0'; 453 parent = estrdup(line); 454 char *pdir = estrdup(dirname(parent)); 455 free(parent); 456 /* Traverse the man page directories and parse the pages */ 457 traversedir(pdir, line, db, mp); 458 free(pdir); 459 } 460 free(line); 461 462 if (pclose(file) == -1) { 463 close_db(db); 464 cleanup(&rec); 465 free_secbuffs(&rec); 466 err(EXIT_FAILURE, "pclose error"); 467 } 468 469 if (mflags.verbosity) 470 printf("Performing index update\n"); 471 update_db(db, mp, &rec); 472 mparse_free(mp); 473 mchars_free(); 474 free_secbuffs(&rec); 475 476 /* Commit the transaction */ 477 sqlite3_exec(db, "COMMIT", NULL, NULL, &errmsg); 478 if (errmsg != NULL) { 479 warnx("%s", errmsg); 480 free(errmsg); 481 close_db(db); 482 exit(EXIT_FAILURE); 483 } 484 485 if (mflags.optimize) 486 optimize(db); 487 488 close_db(db); 489 return 0; 490 } 491 492 /* 493 * traversedir -- 494 * Traverses the given directory recursively and passes all the man page files 495 * in the way to build_file_cache() 496 */ 497 static void 498 traversedir(const char *parent, const char *file, sqlite3 *db, 499 struct mparse *mp) 500 { 501 struct stat sb; 502 struct dirent *dirp; 503 DIR *dp; 504 char *buf; 505 506 if (stat(file, &sb) < 0) { 507 if (mflags.verbosity) 508 warn("stat failed: %s", file); 509 return; 510 } 511 512 /* If it is a directory, traverse it recursively */ 513 if (S_ISDIR(sb.st_mode)) { 514 if ((dp = opendir(file)) == NULL) { 515 if (mflags.verbosity) 516 warn("opendir error: %s", file); 517 return; 518 } 519 520 while ((dirp = readdir(dp)) != NULL) { 521 /* Avoid . and .. entries in a directory */ 522 if (strncmp(dirp->d_name, ".", 1)) { 523 easprintf(&buf, "%s/%s", file, dirp->d_name); 524 traversedir(parent, buf, db, mp); 525 free(buf); 526 } 527 } 528 closedir(dp); 529 return; 530 } 531 532 if (!S_ISREG(sb.st_mode)) 533 return; 534 535 if (sb.st_size == 0) { 536 if (mflags.verbosity) 537 warnx("Empty file: %s", file); 538 return; 539 } 540 build_file_cache(db, parent, file, &sb); 541 } 542 543 /* build_file_cache -- 544 * This function generates an md5 hash of the file passed as its 2nd parameter 545 * and stores it in a temporary table file_cache along with the full file path. 546 * This is done to support incremental updation of the database. 547 * The temporary table file_cache is dropped thereafter in the function 548 * update_db(), once the database has been updated. 549 */ 550 static void 551 build_file_cache(sqlite3 *db, const char *parent, const char *file, 552 struct stat *sb) 553 { 554 const char *sqlstr; 555 sqlite3_stmt *stmt = NULL; 556 int rc, idx; 557 assert(file != NULL); 558 dev_t device_cache = sb->st_dev; 559 ino_t inode_cache = sb->st_ino; 560 time_t mtime_cache = sb->st_mtime; 561 562 sqlstr = "INSERT INTO metadb.file_cache VALUES (:device, :inode," 563 " :mtime, :parent, :file)"; 564 rc = sqlite3_prepare_v2(db, sqlstr, -1, &stmt, NULL); 565 if (rc != SQLITE_OK) { 566 if (mflags.verbosity) 567 warnx("%s", sqlite3_errmsg(db)); 568 return; 569 } 570 571 idx = sqlite3_bind_parameter_index(stmt, ":device"); 572 rc = sqlite3_bind_int64(stmt, idx, device_cache); 573 if (rc != SQLITE_OK) { 574 if (mflags.verbosity) 575 warnx("%s", sqlite3_errmsg(db)); 576 sqlite3_finalize(stmt); 577 return; 578 } 579 580 idx = sqlite3_bind_parameter_index(stmt, ":inode"); 581 rc = sqlite3_bind_int64(stmt, idx, inode_cache); 582 if (rc != SQLITE_OK) { 583 if (mflags.verbosity) 584 warnx("%s", sqlite3_errmsg(db)); 585 sqlite3_finalize(stmt); 586 return; 587 } 588 589 idx = sqlite3_bind_parameter_index(stmt, ":mtime"); 590 rc = sqlite3_bind_int64(stmt, idx, mtime_cache); 591 if (rc != SQLITE_OK) { 592 if (mflags.verbosity) 593 warnx("%s", sqlite3_errmsg(db)); 594 sqlite3_finalize(stmt); 595 return; 596 } 597 598 idx = sqlite3_bind_parameter_index(stmt, ":parent"); 599 rc = sqlite3_bind_text(stmt, idx, parent, -1, NULL); 600 if (rc != SQLITE_OK) { 601 if (mflags.verbosity) 602 warnx("%s", sqlite3_errmsg(db)); 603 sqlite3_finalize(stmt); 604 return; 605 } 606 607 idx = sqlite3_bind_parameter_index(stmt, ":file"); 608 rc = sqlite3_bind_text(stmt, idx, file, -1, NULL); 609 if (rc != SQLITE_OK) { 610 if (mflags.verbosity) 611 warnx("%s", sqlite3_errmsg(db)); 612 sqlite3_finalize(stmt); 613 return; 614 } 615 616 sqlite3_step(stmt); 617 sqlite3_finalize(stmt); 618 } 619 620 static void 621 update_existing_entry(sqlite3 *db, const char *file, const char *hash, 622 mandb_rec *rec, int *new_count, int *link_count, int *err_count) 623 { 624 int update_count, rc, idx; 625 const char *inner_sqlstr; 626 sqlite3_stmt *inner_stmt; 627 628 update_count = sqlite3_total_changes(db); 629 inner_sqlstr = "UPDATE mandb_meta SET device = :device," 630 " inode = :inode, mtime = :mtime WHERE" 631 " md5_hash = :md5 AND file = :file AND" 632 " (device <> :device2 OR inode <> " 633 " :inode2 OR mtime <> :mtime2)"; 634 rc = sqlite3_prepare_v2(db, inner_sqlstr, -1, &inner_stmt, NULL); 635 if (rc != SQLITE_OK) { 636 if (mflags.verbosity) 637 warnx("%s", sqlite3_errmsg(db)); 638 return; 639 } 640 idx = sqlite3_bind_parameter_index(inner_stmt, ":device"); 641 sqlite3_bind_int64(inner_stmt, idx, rec->device); 642 idx = sqlite3_bind_parameter_index(inner_stmt, ":inode"); 643 sqlite3_bind_int64(inner_stmt, idx, rec->inode); 644 idx = sqlite3_bind_parameter_index(inner_stmt, ":mtime"); 645 sqlite3_bind_int64(inner_stmt, idx, rec->mtime); 646 idx = sqlite3_bind_parameter_index(inner_stmt, ":md5"); 647 sqlite3_bind_text(inner_stmt, idx, hash, -1, NULL); 648 idx = sqlite3_bind_parameter_index(inner_stmt, ":file"); 649 sqlite3_bind_text(inner_stmt, idx, file, -1, NULL); 650 idx = sqlite3_bind_parameter_index(inner_stmt, ":device2"); 651 sqlite3_bind_int64(inner_stmt, idx, rec->device); 652 idx = sqlite3_bind_parameter_index(inner_stmt, ":inode2"); 653 sqlite3_bind_int64(inner_stmt, idx, rec->inode); 654 idx = sqlite3_bind_parameter_index(inner_stmt, ":mtime2"); 655 sqlite3_bind_int64(inner_stmt, idx, rec->mtime); 656 657 rc = sqlite3_step(inner_stmt); 658 if (rc == SQLITE_DONE) { 659 /* Check if an update has been performed. */ 660 if (update_count != sqlite3_total_changes(db)) { 661 if (mflags.verbosity == 2) 662 printf("Updated %s\n", file); 663 (*new_count)++; 664 } else { 665 /* Otherwise it was a hardlink. */ 666 (*link_count)++; 667 } 668 } else { 669 if (mflags.verbosity == 2) 670 warnx("Could not update the meta data for %s", file); 671 (*err_count)++; 672 } 673 sqlite3_finalize(inner_stmt); 674 } 675 676 /* read_and_decompress -- 677 * Reads the given file into memory. If it is compressed, decompress 678 * it before returning to the caller. 679 */ 680 static int 681 read_and_decompress(const char *file, void **bufp, size_t *len) 682 { 683 size_t off; 684 ssize_t r; 685 struct archive *a; 686 struct archive_entry *ae; 687 char *buf; 688 689 if ((a = archive_read_new()) == NULL) 690 errx(EXIT_FAILURE, "memory allocation failed"); 691 692 *bufp = NULL; 693 if (archive_read_support_filter_all(a) != ARCHIVE_OK || 694 archive_read_support_format_raw(a) != ARCHIVE_OK || 695 archive_read_open_filename(a, file, 65536) != ARCHIVE_OK || 696 archive_read_next_header(a, &ae) != ARCHIVE_OK) 697 goto archive_error; 698 *len = 65536; 699 buf = emalloc(*len); 700 off = 0; 701 for (;;) { 702 r = archive_read_data(a, buf + off, *len - off); 703 if (r == ARCHIVE_OK) { 704 archive_read_free(a); 705 *bufp = buf; 706 *len = off; 707 return 0; 708 } 709 if (r <= 0) { 710 free(buf); 711 break; 712 } 713 off += r; 714 if (off == *len) { 715 *len *= 2; 716 if (*len < off) { 717 if (mflags.verbosity) 718 warnx("File too large: %s", file); 719 free(buf); 720 archive_read_free(a); 721 return -1; 722 } 723 buf = erealloc(buf, *len); 724 } 725 } 726 727 archive_error: 728 warnx("Error while reading `%s': %s", file, archive_error_string(a)); 729 archive_read_free(a); 730 return -1; 731 } 732 733 /* update_db -- 734 * Does an incremental updation of the database by checking the file_cache. 735 * It parses and adds the pages which are present in file_cache, 736 * but not in the database. 737 * It also removes the pages which are present in the databse, 738 * but not in the file_cache. 739 */ 740 static void 741 update_db(sqlite3 *db, struct mparse *mp, mandb_rec *rec) 742 { 743 const char *sqlstr; 744 sqlite3_stmt *stmt = NULL; 745 char *file; 746 char *parent; 747 char *errmsg = NULL; 748 char *md5sum; 749 void *buf; 750 size_t buflen; 751 struct sql_row { 752 struct sql_row *next; 753 dev_t device; 754 ino_t inode; 755 time_t mtime; 756 char *parent; 757 char *file; 758 } *rows, *row; 759 int new_count = 0; /* Counter for newly indexed/updated pages */ 760 int total_count = 0; /* Counter for total number of pages */ 761 int err_count = 0; /* Counter for number of failed pages */ 762 int link_count = 0; /* Counter for number of hard/sym links */ 763 int md5_status; 764 int rc; 765 766 sqlstr = "SELECT device, inode, mtime, parent, file" 767 " FROM metadb.file_cache fc" 768 " WHERE NOT EXISTS(SELECT 1 FROM mandb_meta WHERE" 769 " device = fc.device AND inode = fc.inode AND " 770 " mtime = fc.mtime AND file = fc.file)"; 771 772 rc = sqlite3_prepare_v2(db, sqlstr, -1, &stmt, NULL); 773 if (rc != SQLITE_OK) { 774 if (mflags.verbosity) 775 warnx("%s", sqlite3_errmsg(db)); 776 close_db(db); 777 errx(EXIT_FAILURE, "Could not query file cache"); 778 } 779 780 buf = NULL; 781 rows = NULL; 782 while (sqlite3_step(stmt) == SQLITE_ROW) { 783 row = emalloc(sizeof(struct sql_row)); 784 row->device = sqlite3_column_int64(stmt, 0); 785 row->inode = sqlite3_column_int64(stmt, 1); 786 row->mtime = sqlite3_column_int64(stmt, 2); 787 row->parent = estrdup((const char *) sqlite3_column_text(stmt, 3)); 788 row->file = estrdup((const char *) sqlite3_column_text(stmt, 4)); 789 row->next = rows; 790 rows = row; 791 total_count++; 792 } 793 sqlite3_finalize(stmt); 794 795 for ( ; rows != NULL; free(parent), free(file), free(buf)) { 796 row = rows; 797 rows = rows->next; 798 799 rec->device = row->device; 800 rec->inode = row->inode; 801 rec->mtime = row->mtime; 802 parent = row->parent; 803 file = row->file; 804 free(row); 805 806 if (read_and_decompress(file, &buf, &buflen)) { 807 err_count++; 808 continue; 809 } 810 md5_status = check_md5(file, db, "mandb_meta", &md5sum, buf, 811 buflen); 812 assert(md5sum != NULL); 813 if (md5_status == -1) { 814 if (mflags.verbosity) 815 warnx("An error occurred in checking md5 value" 816 " for file %s", file); 817 err_count++; 818 continue; 819 } 820 821 if (md5_status == 0) { 822 /* 823 * The MD5 hash is already present in the database, 824 * so simply update the metadata. 825 */ 826 update_existing_entry(db, file, md5sum, rec, 827 &new_count, &link_count, &err_count); 828 free(md5sum); 829 continue; 830 } 831 832 if (md5_status == 1) { 833 /* 834 * The MD5 hash was not present in the database. 835 * This means is either a new file or an updated file. 836 * We should go ahead with parsing. 837 */ 838 if (chdir(parent) == -1) { 839 if (mflags.verbosity) 840 warn("chdir failed for `%s', could " 841 "not index `%s'", parent, file); 842 err_count++; 843 free(md5sum); 844 continue; 845 } 846 847 if (mflags.verbosity == 2) 848 printf("Parsing: %s\n", file); 849 rec->md5_hash = md5sum; 850 rec->file_path = estrdup(file); 851 // file_path is freed by insert_into_db itself. 852 begin_parse(file, mp, rec, buf, buflen); 853 if (insert_into_db(db, rec) < 0) { 854 if (mflags.verbosity) 855 warnx("Error in indexing `%s'", file); 856 err_count++; 857 } else { 858 new_count++; 859 } 860 } 861 } 862 863 if (mflags.verbosity == 2) { 864 printf("Number of new or updated pages encountered: %d\n" 865 "Number of hard links found: %d\n" 866 "Number of pages that were successfully" 867 " indexed or updated: %d\n" 868 "Number of pages that could not be indexed" 869 " due to errors: %d\n", 870 total_count - link_count, link_count, new_count, err_count); 871 } 872 873 if (mflags.recreate) 874 return; 875 876 if (mflags.verbosity == 2) 877 printf("Deleting stale index entries\n"); 878 879 sqlstr = "DELETE FROM mandb_meta WHERE file NOT IN" 880 " (SELECT file FROM metadb.file_cache);" 881 "DELETE FROM mandb_links WHERE md5_hash NOT IN" 882 " (SELECT md5_hash from mandb_meta);" 883 "DROP TABLE metadb.file_cache;" 884 "DELETE FROM mandb WHERE rowid NOT IN" 885 " (SELECT id FROM mandb_meta);"; 886 887 sqlite3_exec(db, sqlstr, NULL, NULL, &errmsg); 888 if (errmsg != NULL) { 889 warnx("Removing old entries failed: %s", errmsg); 890 warnx("Please rebuild database from scratch with -f."); 891 free(errmsg); 892 return; 893 } 894 } 895 896 /* 897 * begin_parse -- 898 * parses the man page using libmandoc 899 */ 900 static void 901 begin_parse(const char *file, struct mparse *mp, mandb_rec *rec, 902 const void *buf, size_t len) 903 { 904 struct roff_man *roff; 905 mparse_reset(mp); 906 907 rec->xr_found = 0; 908 909 if (mparse_readmem(mp, buf, len, file) >= MANDOCLEVEL_BADARG) { 910 /* Printing this warning at verbosity level 2 911 * because some packages from pkgsrc might trigger several 912 * of such warnings. 913 */ 914 if (mflags.verbosity == 2) 915 warnx("%s: Parse failure", file); 916 return; 917 } 918 919 mparse_result(mp, &roff, NULL); 920 if (roff == NULL) { 921 if (mflags.verbosity == 2) 922 warnx("Not a roff(7) page"); 923 return; 924 } 925 926 if (roff->macroset == MACROSET_MDOC) { 927 mdoc_validate(roff); 928 rec->page_type = MDOC; 929 proff_node(roff->first->child, rec, mdocs); 930 } else if (roff->macroset == MACROSET_MAN) { 931 man_validate(roff); 932 rec->page_type = MAN; 933 proff_node(roff->first->child, rec, mans); 934 } else 935 warnx("Unknown macroset %d", roff->macroset); 936 set_machine(roff, rec); 937 set_section(roff, rec); 938 } 939 940 /* 941 * set_section -- 942 * Extracts the section number and normalizes it to only the numeric part 943 * (Which should be the first character of the string). 944 */ 945 static void 946 set_section(const struct roff_man *rm, mandb_rec *rec) 947 { 948 if (!rm) 949 return; 950 const struct roff_meta *rm_meta = &rm->meta; 951 const char *s = rm_meta->msec == NULL ? "?" : rm_meta->msec; 952 easprintf(&rec->section, "%s", s); 953 if (rec->section[0] == '?' && mflags.verbosity == 2) 954 warnx("%s: Missing section number", rec->file_path); 955 } 956 957 /* 958 * get_machine -- 959 * Extracts the machine architecture information if available. 960 */ 961 static void 962 set_machine(const struct roff_man *rm, mandb_rec *rec) 963 { 964 if (rm == NULL) 965 return; 966 const struct roff_meta *rm_meta = &rm->meta; 967 if (rm_meta->arch) 968 rec->machine = estrdup(rm_meta->arch); 969 } 970 971 /* 972 * pmdoc_Nm -- 973 * Extracts the Name of the manual page from the .Nm macro 974 */ 975 static void 976 pmdoc_Nm(const struct roff_node *n, mandb_rec *rec) 977 { 978 if (n->sec != SEC_NAME) 979 return; 980 981 for (n = n->child; n; n = n->next) { 982 if (n->type == ROFFT_TEXT) { 983 char *escaped_name = parse_escape(n->string); 984 concat(&rec->name, escaped_name); 985 free(escaped_name); 986 } 987 } 988 } 989 990 /* 991 * pmdoc_Nd -- 992 * Extracts the one line description of the man page from the .Nd macro 993 */ 994 static void 995 pmdoc_Nd(const struct roff_node *n, mandb_rec *rec) 996 { 997 if (n->type == ROFFT_BODY) 998 deroff(&rec->name_desc, n); 999 if (rec->name_desc) 1000 replace_hyph(rec->name_desc); 1001 1002 } 1003 1004 /* 1005 * pmdoc_macro_handler-- 1006 * This function is a single point of handling all the special macros that we 1007 * want to handle especially. For example the .Xr macro for properly parsing 1008 * the referenced page name along with the section number, or the .Pp macro 1009 * for adding a new line whenever we encounter it. 1010 */ 1011 static void 1012 pmdoc_macro_handler(const struct roff_node *n, mandb_rec *rec, int doct) 1013 { 1014 const struct roff_node *sn; 1015 assert(n); 1016 1017 switch (doct) { 1018 /* Parse the man page references. 1019 * Basically the .Xr macros are used like: 1020 * .Xr ls 1 1021 * and formatted like this: 1022 * ls(1) 1023 * Prepare a buffer to format the data like the above example and call 1024 * pmdoc_parse_section to append it. 1025 */ 1026 case MDOC_Xr: 1027 n = n->child; 1028 while (n->type != ROFFT_TEXT && n->next) 1029 n = n->next; 1030 1031 if (n && n->type != ROFFT_TEXT) 1032 return; 1033 sn = n; 1034 if (n->next) 1035 n = n->next; 1036 1037 while (n->type != ROFFT_TEXT && n->next) 1038 n = n->next; 1039 1040 if (n && n->type == ROFFT_TEXT) { 1041 char *buf; 1042 easprintf(&buf, "%s(%s)", sn->string, n->string); 1043 mdoc_parse_section(n->sec, buf, rec); 1044 free(buf); 1045 } 1046 1047 break; 1048 1049 /* Parse the .Pp macro to add a new line */ 1050 case MDOC_Pp: 1051 if (n->type == ROFFT_TEXT) 1052 mdoc_parse_section(n->sec, "\n", rec); 1053 break; 1054 default: 1055 break; 1056 } 1057 1058 } 1059 1060 /* 1061 * pmdoc_Xr, pmdoc_Pp-- 1062 * Empty stubs. 1063 * The parser calls these functions each time it encounters 1064 * a .Xr or .Pp macro. We are parsing all the data from 1065 * the pmdoc_Sh function, so don't do anything here. 1066 * (See if else blocks in pmdoc_Sh.) 1067 */ 1068 static void 1069 pmdoc_Xr(const struct roff_node *n, mandb_rec *rec) 1070 { 1071 } 1072 1073 static void 1074 pmdoc_Pp(const struct roff_node *n, mandb_rec *rec) 1075 { 1076 } 1077 1078 /* 1079 * pmdoc_Sh -- 1080 * Called when a .Sh macro is encountered and tries to parse its body 1081 */ 1082 static void 1083 pmdoc_Sh(const struct roff_node *n, mandb_rec *rec) 1084 { 1085 if (n == NULL) 1086 return; 1087 1088 switch (n->sec) { 1089 case SEC_NAME: 1090 case SEC_SYNOPSIS: 1091 case SEC_EXAMPLES: 1092 case SEC_STANDARDS: 1093 case SEC_HISTORY: 1094 case SEC_AUTHORS: 1095 case SEC_BUGS: 1096 /* 1097 * We don't care about text from these sections 1098 */ 1099 return; 1100 default: 1101 break; 1102 } 1103 1104 if (n->type == ROFFT_BLOCK) 1105 mdoc_parse_Sh(n->body, rec); 1106 } 1107 1108 /* 1109 * Called from pmdoc_Sh to parse body of a .Sh macro. It calls 1110 * mdoc_parse_section to append the data to the section specific buffer. 1111 * The .Xr macro needs special handling, thus the separate if branch for it. 1112 */ 1113 static void 1114 mdoc_parse_Sh(const struct roff_node *n, mandb_rec *rec) 1115 { 1116 if (n == NULL || (n->type != ROFFT_TEXT && n->tok == MDOC_MAX)) 1117 return; 1118 int xr_found = 0; 1119 1120 if (n->type == ROFFT_TEXT) { 1121 mdoc_parse_section(n->sec, n->string, rec); 1122 } else if (mdocs[n->tok] == pmdoc_Xr) { 1123 /* 1124 * When encountering other inline macros, 1125 * call pmdoc_macro_handler. 1126 */ 1127 pmdoc_macro_handler(n, rec, MDOC_Xr); 1128 xr_found = 1; 1129 } else if (mdocs[n->tok] == pmdoc_Pp) { 1130 pmdoc_macro_handler(n, rec, MDOC_Pp); 1131 } 1132 1133 /* 1134 * If an Xr macro was encountered then the child node has 1135 * already been explored by pmdoc_macro_handler. 1136 */ 1137 if (xr_found == 0) 1138 mdoc_parse_Sh(n->child, rec); 1139 mdoc_parse_Sh(n->next, rec); 1140 } 1141 1142 /* 1143 * mdoc_parse_section-- 1144 * Utility function for parsing sections of the mdoc type pages. 1145 * Takes two params: 1146 * 1. sec is an enum which indicates the section in which we are present 1147 * 2. string is the string which we need to append to the secbuff for this 1148 * particular section. 1149 * The function appends string to the global section buffer and returns. 1150 */ 1151 static void 1152 mdoc_parse_section(enum roff_sec sec, const char *string, mandb_rec *rec) 1153 { 1154 /* 1155 * If the user specified the 'l' flag, then parse and store only the 1156 * NAME section. Ignore the rest. 1157 */ 1158 if (mflags.limit) 1159 return; 1160 1161 switch (sec) { 1162 case SEC_LIBRARY: 1163 append(&rec->lib, string); 1164 break; 1165 case SEC_RETURN_VALUES: 1166 append(&rec->return_vals, string); 1167 break; 1168 case SEC_ENVIRONMENT: 1169 append(&rec->env, string); 1170 break; 1171 case SEC_FILES: 1172 append(&rec->files, string); 1173 break; 1174 case SEC_EXIT_STATUS: 1175 append(&rec->exit_status, string); 1176 break; 1177 case SEC_DIAGNOSTICS: 1178 append(&rec->diagnostics, string); 1179 break; 1180 case SEC_ERRORS: 1181 append(&rec->errors, string); 1182 break; 1183 default: 1184 append(&rec->desc, string); 1185 break; 1186 } 1187 } 1188 1189 static void 1190 proff_node(const struct roff_node *n, mandb_rec *rec, const proff_nf *func) 1191 { 1192 if (n == NULL) 1193 return; 1194 1195 switch (n->type) { 1196 case (ROFFT_BODY): 1197 /* FALLTHROUGH */ 1198 case (ROFFT_BLOCK): 1199 /* FALLTHROUGH */ 1200 case (ROFFT_ELEM): 1201 if (func[n->tok] != NULL) 1202 (*func[n->tok])(n, rec); 1203 break; 1204 default: 1205 break; 1206 } 1207 1208 proff_node(n->child, rec, func); 1209 proff_node(n->next, rec, func); 1210 } 1211 1212 /* 1213 * pman_parse_name -- 1214 * Parses the NAME section and puts the complete content in the name_desc 1215 * variable. 1216 */ 1217 static void 1218 pman_parse_name(const struct roff_node *n, mandb_rec *rec) 1219 { 1220 if (n == NULL) 1221 return; 1222 1223 if (n->type == ROFFT_TEXT) { 1224 char *tmp = parse_escape(n->string); 1225 concat(&rec->name_desc, tmp); 1226 free(tmp); 1227 } 1228 1229 if (n->child) 1230 pman_parse_name(n->child, rec); 1231 1232 if(n->next) 1233 pman_parse_name(n->next, rec); 1234 } 1235 1236 /* 1237 * A stub function to be able to parse the macros like .B embedded inside 1238 * a section. 1239 */ 1240 static void 1241 pman_block(const struct roff_node *n, mandb_rec *rec) 1242 { 1243 } 1244 1245 /* 1246 * pman_sh -- 1247 * This function does one of the two things: 1248 * 1. If the present section is NAME, then it will: 1249 * (a) Extract the name of the page (in case of multiple comma separated 1250 * names, it will pick up the first one). 1251 * (b) Build a space spearated list of all the symlinks/hardlinks to 1252 * this page and store in the buffer 'links'. These are extracted from 1253 * the comma separated list of names in the NAME section as well. 1254 * (c) Move on to the one line description section, which is after the list 1255 * of names in the NAME section. 1256 * 2. Otherwise, it will check the section name and call the man_parse_section 1257 * function, passing the enum corresponding to that section. 1258 */ 1259 static void 1260 pman_sh(const struct roff_node *n, mandb_rec *rec) 1261 { 1262 static const struct { 1263 enum man_sec section; 1264 const char *header; 1265 } mapping[] = { 1266 { MANSEC_DESCRIPTION, "DESCRIPTION" }, 1267 { MANSEC_SYNOPSIS, "SYNOPSIS" }, 1268 { MANSEC_LIBRARY, "LIBRARY" }, 1269 { MANSEC_ERRORS, "ERRORS" }, 1270 { MANSEC_FILES, "FILES" }, 1271 { MANSEC_RETURN_VALUES, "RETURN VALUE" }, 1272 { MANSEC_RETURN_VALUES, "RETURN VALUES" }, 1273 { MANSEC_EXIT_STATUS, "EXIT STATUS" }, 1274 { MANSEC_EXAMPLES, "EXAMPLES" }, 1275 { MANSEC_EXAMPLES, "EXAMPLE" }, 1276 { MANSEC_STANDARDS, "STANDARDS" }, 1277 { MANSEC_HISTORY, "HISTORY" }, 1278 { MANSEC_BUGS, "BUGS" }, 1279 { MANSEC_AUTHORS, "AUTHORS" }, 1280 { MANSEC_COPYRIGHT, "COPYRIGHT" }, 1281 }; 1282 const struct roff_node *head; 1283 char *name_desc; 1284 size_t sz; 1285 size_t i; 1286 1287 if ((head = n->parent->head) == NULL || (head = head->child) == NULL || 1288 head->type != ROFFT_TEXT) 1289 return; 1290 1291 /* 1292 * Check if this section should be extracted and 1293 * where it should be stored. Handled the trival cases first. 1294 */ 1295 for (i = 0; i < sizeof(mapping) / sizeof(mapping[0]); ++i) { 1296 if (strcmp(head->string, mapping[i].header) == 0) { 1297 man_parse_section(mapping[i].section, n, rec); 1298 return; 1299 } 1300 } 1301 1302 if (strcmp(head->string, "NAME") == 0) { 1303 /* 1304 * We are in the NAME section. 1305 * pman_parse_name will put the complete content in name_desc. 1306 */ 1307 pman_parse_name(n, rec); 1308 1309 name_desc = rec->name_desc; 1310 if (name_desc == NULL) 1311 return; 1312 1313 /* Remove any leading spaces. */ 1314 while (name_desc[0] == ' ') 1315 name_desc++; 1316 1317 /* If the line begins with a "\&", avoid those */ 1318 if (name_desc[0] == '\\' && name_desc[1] == '&') 1319 name_desc += 2; 1320 1321 /* Now name_desc should be left with a comma-space 1322 * separated list of names and the one line description 1323 * of the page: 1324 * "a, b, c \- sample description" 1325 * Take out the first name, before the first comma 1326 * (or space) and store it in rec->name. 1327 * If the page has aliases then they should be 1328 * in the form of a comma separated list. 1329 * Keep looping while there is a comma in name_desc, 1330 * extract the alias name and store in rec->links. 1331 * When there are no more commas left, break out. 1332 */ 1333 int has_alias = 0; // Any more aliases left? 1334 while (*name_desc) { 1335 /* Remove any leading spaces or hyphens. */ 1336 if (name_desc[0] == ' ' || name_desc[0] == '-') { 1337 name_desc++; 1338 continue; 1339 } 1340 sz = strcspn(name_desc, ", "); 1341 1342 /* Extract the first term and store it in rec->name. */ 1343 if (rec->name == NULL) { 1344 if (name_desc[sz] == ',') 1345 has_alias = 1; 1346 rec->name = estrndup(name_desc, sz); 1347 /* XXX This would only happen with a poorly 1348 * written man page, maybe warn? */ 1349 if (name_desc[sz] == '\0') 1350 break; 1351 name_desc += sz + 1; 1352 continue; 1353 } 1354 1355 /* 1356 * Once rec->name is set, rest of the names 1357 * are to be treated as links or aliases. 1358 */ 1359 if (rec->name && has_alias) { 1360 if (name_desc[sz] != ',') { 1361 /* No more commas left --> no more 1362 * aliases to take out */ 1363 has_alias = 0; 1364 } 1365 concat2(&rec->links, name_desc, sz); 1366 /* XXX This would only happen with a poorly 1367 * written man page, maybe warn? */ 1368 if (name_desc[sz] == '\0') 1369 break; 1370 name_desc += sz + 1; 1371 continue; 1372 } 1373 break; 1374 } 1375 1376 /* Parse any escape sequences that might be there */ 1377 char *temp = parse_escape(name_desc); 1378 free(rec->name_desc); 1379 rec->name_desc = temp; 1380 temp = parse_escape(rec->name); 1381 free(rec->name); 1382 rec->name = temp; 1383 return; 1384 } 1385 1386 /* The RETURN VALUE section might be specified in multiple ways */ 1387 if (strcmp(head->string, "RETURN") == 0 && 1388 head->next != NULL && head->next->type == ROFFT_TEXT && 1389 (strcmp(head->next->string, "VALUE") == 0 || 1390 strcmp(head->next->string, "VALUES") == 0)) { 1391 man_parse_section(MANSEC_RETURN_VALUES, n, rec); 1392 return; 1393 } 1394 1395 /* 1396 * EXIT STATUS section can also be specified all on one line or on two 1397 * separate lines. 1398 */ 1399 if (strcmp(head->string, "EXIT") == 0 && 1400 head->next != NULL && head->next->type == ROFFT_TEXT && 1401 strcmp(head->next->string, "STATUS") == 0) { 1402 man_parse_section(MANSEC_EXIT_STATUS, n, rec); 1403 return; 1404 } 1405 1406 /* Store the rest of the content in desc. */ 1407 man_parse_section(MANSEC_NONE, n, rec); 1408 } 1409 1410 /* 1411 * pman_parse_node -- 1412 * Generic function to iterate through a node. Usually called from 1413 * man_parse_section to parse a particular section of the man page. 1414 */ 1415 static void 1416 pman_parse_node(const struct roff_node *n, secbuff *s) 1417 { 1418 if (n == NULL) 1419 return; 1420 1421 if (n->type == ROFFT_TEXT) 1422 append(s, n->string); 1423 1424 pman_parse_node(n->child, s); 1425 pman_parse_node(n->next, s); 1426 } 1427 1428 /* 1429 * man_parse_section -- 1430 * Takes two parameters: 1431 * sec: Tells which section we are present in 1432 * n: Is the present node of the AST. 1433 * Depending on the section, we call pman_parse_node to parse that section and 1434 * concatenate the content from that section into the buffer for that section. 1435 */ 1436 static void 1437 man_parse_section(enum man_sec sec, const struct roff_node *n, mandb_rec *rec) 1438 { 1439 /* 1440 * If the user sepecified the 'l' flag then just parse 1441 * the NAME section, ignore the rest. 1442 */ 1443 if (mflags.limit) 1444 return; 1445 1446 switch (sec) { 1447 case MANSEC_LIBRARY: 1448 pman_parse_node(n, &rec->lib); 1449 break; 1450 case MANSEC_RETURN_VALUES: 1451 pman_parse_node(n, &rec->return_vals); 1452 break; 1453 case MANSEC_ENVIRONMENT: 1454 pman_parse_node(n, &rec->env); 1455 break; 1456 case MANSEC_FILES: 1457 pman_parse_node(n, &rec->files); 1458 break; 1459 case MANSEC_EXIT_STATUS: 1460 pman_parse_node(n, &rec->exit_status); 1461 break; 1462 case MANSEC_DIAGNOSTICS: 1463 pman_parse_node(n, &rec->diagnostics); 1464 break; 1465 case MANSEC_ERRORS: 1466 pman_parse_node(n, &rec->errors); 1467 break; 1468 case MANSEC_NAME: 1469 case MANSEC_SYNOPSIS: 1470 case MANSEC_EXAMPLES: 1471 case MANSEC_STANDARDS: 1472 case MANSEC_HISTORY: 1473 case MANSEC_BUGS: 1474 case MANSEC_AUTHORS: 1475 case MANSEC_COPYRIGHT: 1476 break; 1477 default: 1478 pman_parse_node(n, &rec->desc); 1479 break; 1480 } 1481 1482 } 1483 1484 /* 1485 * insert_into_db -- 1486 * Inserts the parsed data of the man page in the Sqlite databse. 1487 * If any of the values is NULL, then we cleanup and return -1 indicating 1488 * an error. 1489 * Otherwise, store the data in the database and return 0. 1490 */ 1491 static int 1492 insert_into_db(sqlite3 *db, mandb_rec *rec) 1493 { 1494 int rc = 0; 1495 int idx = -1; 1496 const char *sqlstr = NULL; 1497 sqlite3_stmt *stmt = NULL; 1498 char *ln = NULL; 1499 char *errmsg = NULL; 1500 long int mandb_rowid; 1501 1502 /* 1503 * At the very minimum we want to make sure that we store 1504 * the following data: 1505 * Name, one line description, and the MD5 hash 1506 */ 1507 if (rec->name == NULL || rec->name_desc == NULL || 1508 rec->md5_hash == NULL) { 1509 cleanup(rec); 1510 return -1; 1511 } 1512 1513 /* Write null byte at the end of all the sec_buffs */ 1514 rec->desc.data[rec->desc.offset] = 0; 1515 rec->lib.data[rec->lib.offset] = 0; 1516 rec->env.data[rec->env.offset] = 0; 1517 rec->return_vals.data[rec->return_vals.offset] = 0; 1518 rec->exit_status.data[rec->exit_status.offset] = 0; 1519 rec->files.data[rec->files.offset] = 0; 1520 rec->diagnostics.data[rec->diagnostics.offset] = 0; 1521 rec->errors.data[rec->errors.offset] = 0; 1522 1523 /* 1524 * In case of a mdoc page: (sorry, no better place to put this code) 1525 * parse the comma separated list of names of man pages, 1526 * the first name will be stored in the mandb table, rest will be 1527 * treated as links and put in the mandb_links table. 1528 */ 1529 if (rec->page_type == MDOC) { 1530 char *tmp; 1531 rec->links = estrdup(rec->name); 1532 free(rec->name); 1533 size_t sz = strcspn(rec->links, " \0"); 1534 rec->name = emalloc(sz + 1); 1535 memcpy(rec->name, rec->links, sz); 1536 if(rec->name[sz - 1] == ',') 1537 rec->name[sz - 1] = 0; 1538 else 1539 rec->name[sz] = 0; 1540 while (rec->links[sz] == ' ') 1541 ++sz; 1542 tmp = estrdup(rec->links + sz); 1543 free(rec->links); 1544 rec->links = tmp; 1545 } 1546 1547 /*------------------------ Populate the mandb table---------------------------*/ 1548 sqlstr = "INSERT INTO mandb VALUES (:section, :name, :name_desc, :desc," 1549 " :lib, :return_vals, :env, :files, :exit_status," 1550 " :diagnostics, :errors, :md5_hash, :machine)"; 1551 1552 rc = sqlite3_prepare_v2(db, sqlstr, -1, &stmt, NULL); 1553 if (rc != SQLITE_OK) 1554 goto Out; 1555 1556 idx = sqlite3_bind_parameter_index(stmt, ":name"); 1557 rc = sqlite3_bind_text(stmt, idx, rec->name, -1, NULL); 1558 if (rc != SQLITE_OK) { 1559 sqlite3_finalize(stmt); 1560 goto Out; 1561 } 1562 1563 idx = sqlite3_bind_parameter_index(stmt, ":section"); 1564 rc = sqlite3_bind_text(stmt, idx, rec->section, -1, NULL); 1565 if (rc != SQLITE_OK) { 1566 sqlite3_finalize(stmt); 1567 goto Out; 1568 } 1569 1570 idx = sqlite3_bind_parameter_index(stmt, ":name_desc"); 1571 rc = sqlite3_bind_text(stmt, idx, rec->name_desc, -1, NULL); 1572 if (rc != SQLITE_OK) { 1573 sqlite3_finalize(stmt); 1574 goto Out; 1575 } 1576 1577 idx = sqlite3_bind_parameter_index(stmt, ":desc"); 1578 rc = sqlite3_bind_text(stmt, idx, rec->desc.data, 1579 rec->desc.offset + 1, NULL); 1580 if (rc != SQLITE_OK) { 1581 sqlite3_finalize(stmt); 1582 goto Out; 1583 } 1584 1585 idx = sqlite3_bind_parameter_index(stmt, ":lib"); 1586 rc = sqlite3_bind_text(stmt, idx, rec->lib.data, 1587 rec->lib.offset + 1, NULL); 1588 if (rc != SQLITE_OK) { 1589 sqlite3_finalize(stmt); 1590 goto Out; 1591 } 1592 1593 idx = sqlite3_bind_parameter_index(stmt, ":return_vals"); 1594 rc = sqlite3_bind_text(stmt, idx, rec->return_vals.data, 1595 rec->return_vals.offset + 1, NULL); 1596 if (rc != SQLITE_OK) { 1597 sqlite3_finalize(stmt); 1598 goto Out; 1599 } 1600 1601 idx = sqlite3_bind_parameter_index(stmt, ":env"); 1602 rc = sqlite3_bind_text(stmt, idx, rec->env.data, 1603 rec->env.offset + 1, NULL); 1604 if (rc != SQLITE_OK) { 1605 sqlite3_finalize(stmt); 1606 goto Out; 1607 } 1608 1609 idx = sqlite3_bind_parameter_index(stmt, ":files"); 1610 rc = sqlite3_bind_text(stmt, idx, rec->files.data, 1611 rec->files.offset + 1, NULL); 1612 if (rc != SQLITE_OK) { 1613 sqlite3_finalize(stmt); 1614 goto Out; 1615 } 1616 1617 idx = sqlite3_bind_parameter_index(stmt, ":exit_status"); 1618 rc = sqlite3_bind_text(stmt, idx, rec->exit_status.data, 1619 rec->exit_status.offset + 1, NULL); 1620 if (rc != SQLITE_OK) { 1621 sqlite3_finalize(stmt); 1622 goto Out; 1623 } 1624 1625 idx = sqlite3_bind_parameter_index(stmt, ":diagnostics"); 1626 rc = sqlite3_bind_text(stmt, idx, rec->diagnostics.data, 1627 rec->diagnostics.offset + 1, NULL); 1628 if (rc != SQLITE_OK) { 1629 sqlite3_finalize(stmt); 1630 goto Out; 1631 } 1632 1633 idx = sqlite3_bind_parameter_index(stmt, ":errors"); 1634 rc = sqlite3_bind_text(stmt, idx, rec->errors.data, 1635 rec->errors.offset + 1, NULL); 1636 if (rc != SQLITE_OK) { 1637 sqlite3_finalize(stmt); 1638 goto Out; 1639 } 1640 1641 idx = sqlite3_bind_parameter_index(stmt, ":md5_hash"); 1642 rc = sqlite3_bind_text(stmt, idx, rec->md5_hash, -1, NULL); 1643 if (rc != SQLITE_OK) { 1644 sqlite3_finalize(stmt); 1645 goto Out; 1646 } 1647 1648 idx = sqlite3_bind_parameter_index(stmt, ":machine"); 1649 if (rec->machine) 1650 rc = sqlite3_bind_text(stmt, idx, rec->machine, -1, NULL); 1651 else 1652 rc = sqlite3_bind_null(stmt, idx); 1653 if (rc != SQLITE_OK) { 1654 sqlite3_finalize(stmt); 1655 goto Out; 1656 } 1657 1658 rc = sqlite3_step(stmt); 1659 if (rc != SQLITE_DONE) { 1660 sqlite3_finalize(stmt); 1661 goto Out; 1662 } 1663 1664 sqlite3_finalize(stmt); 1665 1666 /* Get the row id of the last inserted row */ 1667 mandb_rowid = sqlite3_last_insert_rowid(db); 1668 1669 /*------------------------Populate the mandb_meta table-----------------------*/ 1670 sqlstr = "INSERT INTO mandb_meta VALUES (:device, :inode, :mtime," 1671 " :file, :md5_hash, :id)"; 1672 rc = sqlite3_prepare_v2(db, sqlstr, -1, &stmt, NULL); 1673 if (rc != SQLITE_OK) 1674 goto Out; 1675 1676 idx = sqlite3_bind_parameter_index(stmt, ":device"); 1677 rc = sqlite3_bind_int64(stmt, idx, rec->device); 1678 if (rc != SQLITE_OK) { 1679 sqlite3_finalize(stmt); 1680 goto Out; 1681 } 1682 1683 idx = sqlite3_bind_parameter_index(stmt, ":inode"); 1684 rc = sqlite3_bind_int64(stmt, idx, rec->inode); 1685 if (rc != SQLITE_OK) { 1686 sqlite3_finalize(stmt); 1687 goto Out; 1688 } 1689 1690 idx = sqlite3_bind_parameter_index(stmt, ":mtime"); 1691 rc = sqlite3_bind_int64(stmt, idx, rec->mtime); 1692 if (rc != SQLITE_OK) { 1693 sqlite3_finalize(stmt); 1694 goto Out; 1695 } 1696 1697 idx = sqlite3_bind_parameter_index(stmt, ":file"); 1698 rc = sqlite3_bind_text(stmt, idx, rec->file_path, -1, NULL); 1699 if (rc != SQLITE_OK) { 1700 sqlite3_finalize(stmt); 1701 goto Out; 1702 } 1703 1704 idx = sqlite3_bind_parameter_index(stmt, ":md5_hash"); 1705 rc = sqlite3_bind_text(stmt, idx, rec->md5_hash, -1, NULL); 1706 if (rc != SQLITE_OK) { 1707 sqlite3_finalize(stmt); 1708 goto Out; 1709 } 1710 1711 idx = sqlite3_bind_parameter_index(stmt, ":id"); 1712 rc = sqlite3_bind_int64(stmt, idx, mandb_rowid); 1713 if (rc != SQLITE_OK) { 1714 sqlite3_finalize(stmt); 1715 goto Out; 1716 } 1717 1718 rc = sqlite3_step(stmt); 1719 sqlite3_finalize(stmt); 1720 if (rc == SQLITE_CONSTRAINT_UNIQUE) { 1721 /* The *most* probable reason for reaching here is that 1722 * the UNIQUE contraint on the file column of the mandb_meta 1723 * table was violated. 1724 * This can happen when a file was updated/modified. 1725 * To fix this we need to do two things: 1726 * 1. Delete the row for the older version of this file 1727 * from mandb table. 1728 * 2. Run an UPDATE query to update the row for this file 1729 * in the mandb_meta table. 1730 */ 1731 warnx("Trying to update index for %s", rec->file_path); 1732 char *sql = sqlite3_mprintf("DELETE FROM mandb " 1733 "WHERE rowid = (SELECT id" 1734 " FROM mandb_meta" 1735 " WHERE file = %Q)", 1736 rec->file_path); 1737 sqlite3_exec(db, sql, NULL, NULL, &errmsg); 1738 sqlite3_free(sql); 1739 if (errmsg != NULL) { 1740 if (mflags.verbosity) 1741 warnx("%s", errmsg); 1742 free(errmsg); 1743 } 1744 sqlstr = "UPDATE mandb_meta SET device = :device," 1745 " inode = :inode, mtime = :mtime, id = :id," 1746 " md5_hash = :md5 WHERE file = :file"; 1747 rc = sqlite3_prepare_v2(db, sqlstr, -1, &stmt, NULL); 1748 if (rc != SQLITE_OK) { 1749 if (mflags.verbosity) 1750 warnx("Update failed with error: %s", 1751 sqlite3_errmsg(db)); 1752 close_db(db); 1753 cleanup(rec); 1754 errx(EXIT_FAILURE, 1755 "Consider running makemandb with -f option"); 1756 } 1757 1758 idx = sqlite3_bind_parameter_index(stmt, ":device"); 1759 sqlite3_bind_int64(stmt, idx, rec->device); 1760 idx = sqlite3_bind_parameter_index(stmt, ":inode"); 1761 sqlite3_bind_int64(stmt, idx, rec->inode); 1762 idx = sqlite3_bind_parameter_index(stmt, ":mtime"); 1763 sqlite3_bind_int64(stmt, idx, rec->mtime); 1764 idx = sqlite3_bind_parameter_index(stmt, ":id"); 1765 sqlite3_bind_int64(stmt, idx, mandb_rowid); 1766 idx = sqlite3_bind_parameter_index(stmt, ":md5"); 1767 sqlite3_bind_text(stmt, idx, rec->md5_hash, -1, NULL); 1768 idx = sqlite3_bind_parameter_index(stmt, ":file"); 1769 sqlite3_bind_text(stmt, idx, rec->file_path, -1, NULL); 1770 rc = sqlite3_step(stmt); 1771 sqlite3_finalize(stmt); 1772 1773 if (rc != SQLITE_DONE) { 1774 if (mflags.verbosity) 1775 warnx("%s", sqlite3_errmsg(db)); 1776 close_db(db); 1777 cleanup(rec); 1778 errx(EXIT_FAILURE, 1779 "Consider running makemandb with -f option"); 1780 } 1781 } else if (rc != SQLITE_DONE) { 1782 /* Otherwise make this error fatal */ 1783 warnx("Failed at %s\n%s", rec->file_path, sqlite3_errmsg(db)); 1784 cleanup(rec); 1785 close_db(db); 1786 exit(EXIT_FAILURE); 1787 } 1788 1789 /*------------------------ Populate the mandb_links table---------------------*/ 1790 char *str = NULL; 1791 char *links; 1792 if (rec->links && strlen(rec->links)) { 1793 links = rec->links; 1794 for(ln = strtok(links, " "); ln; ln = strtok(NULL, " ")) { 1795 if (ln[0] == ',') 1796 ln++; 1797 if(ln[strlen(ln) - 1] == ',') 1798 ln[strlen(ln) - 1] = 0; 1799 1800 str = sqlite3_mprintf("INSERT INTO mandb_links" 1801 " VALUES (%Q, %Q, %Q, %Q, %Q)", 1802 ln, rec->name, rec->section, 1803 rec->machine, rec->md5_hash); 1804 sqlite3_exec(db, str, NULL, NULL, &errmsg); 1805 sqlite3_free(str); 1806 if (errmsg != NULL) { 1807 warnx("%s", errmsg); 1808 cleanup(rec); 1809 free(errmsg); 1810 return -1; 1811 } 1812 } 1813 } 1814 1815 cleanup(rec); 1816 return 0; 1817 1818 Out: 1819 if (mflags.verbosity) 1820 warnx("%s", sqlite3_errmsg(db)); 1821 cleanup(rec); 1822 return -1; 1823 } 1824 1825 /* 1826 * check_md5-- 1827 * Generates the md5 hash of the file and checks if it already doesn't exist 1828 * in the table (passed as the 3rd parameter). 1829 * This function is being used to avoid hardlinks. 1830 * On successful completion it will also set the value of the fourth parameter 1831 * to the md5 hash of the file (computed previously). It is the responsibility 1832 * of the caller to free this buffer. 1833 * Return values: 1834 * -1: If an error occurs somewhere and sets the md5 return buffer to NULL. 1835 * 0: If the md5 hash does not exist in the table. 1836 * 1: If the hash exists in the database. 1837 */ 1838 static int 1839 check_md5(const char *file, sqlite3 *db, const char *table, char **md5sum, 1840 void *buf, size_t buflen) 1841 { 1842 int rc = 0; 1843 int idx = -1; 1844 char *sqlstr = NULL; 1845 sqlite3_stmt *stmt = NULL; 1846 1847 assert(file != NULL); 1848 *md5sum = MD5Data(buf, buflen, NULL); 1849 if (*md5sum == NULL) { 1850 if (mflags.verbosity) 1851 warn("md5 failed: %s", file); 1852 return -1; 1853 } 1854 1855 easprintf(&sqlstr, "SELECT * FROM %s WHERE md5_hash = :md5_hash", 1856 table); 1857 rc = sqlite3_prepare_v2(db, sqlstr, -1, &stmt, NULL); 1858 if (rc != SQLITE_OK) { 1859 free(sqlstr); 1860 free(*md5sum); 1861 *md5sum = NULL; 1862 return -1; 1863 } 1864 1865 idx = sqlite3_bind_parameter_index(stmt, ":md5_hash"); 1866 rc = sqlite3_bind_text(stmt, idx, *md5sum, -1, NULL); 1867 if (rc != SQLITE_OK) { 1868 if (mflags.verbosity) 1869 warnx("%s", sqlite3_errmsg(db)); 1870 sqlite3_finalize(stmt); 1871 free(sqlstr); 1872 free(*md5sum); 1873 *md5sum = NULL; 1874 return -1; 1875 } 1876 1877 if (sqlite3_step(stmt) == SQLITE_ROW) { 1878 sqlite3_finalize(stmt); 1879 free(sqlstr); 1880 return 0; 1881 } 1882 1883 sqlite3_finalize(stmt); 1884 free(sqlstr); 1885 return 1; 1886 } 1887 1888 /* Optimize the index for faster search */ 1889 static void 1890 optimize(sqlite3 *db) 1891 { 1892 const char *sqlstr; 1893 char *errmsg = NULL; 1894 1895 if (mflags.verbosity == 2) 1896 printf("Optimizing the database index\n"); 1897 sqlstr = "INSERT INTO mandb(mandb) VALUES (\'optimize\');" 1898 "VACUUM"; 1899 sqlite3_exec(db, sqlstr, NULL, NULL, &errmsg); 1900 if (errmsg != NULL) { 1901 if (mflags.verbosity) 1902 warnx("%s", errmsg); 1903 free(errmsg); 1904 return; 1905 } 1906 } 1907 1908 /* 1909 * cleanup -- 1910 * cleans up the global buffers 1911 */ 1912 static void 1913 cleanup(mandb_rec *rec) 1914 { 1915 rec->desc.offset = 0; 1916 rec->lib.offset = 0; 1917 rec->return_vals.offset = 0; 1918 rec->env.offset = 0; 1919 rec->exit_status.offset = 0; 1920 rec->diagnostics.offset = 0; 1921 rec->errors.offset = 0; 1922 rec->files.offset = 0; 1923 1924 free(rec->machine); 1925 rec->machine = NULL; 1926 1927 free(rec->links); 1928 rec->links = NULL; 1929 1930 free(rec->file_path); 1931 rec->file_path = NULL; 1932 1933 free(rec->name); 1934 rec->name = NULL; 1935 1936 free(rec->name_desc); 1937 rec->name_desc = NULL; 1938 1939 free(rec->md5_hash); 1940 rec->md5_hash = NULL; 1941 1942 free(rec->section); 1943 rec->section = NULL; 1944 } 1945 1946 /* 1947 * init_secbuffs-- 1948 * Sets the value of buflen for all the sec_buff field of rec. And then 1949 * allocate memory to each sec_buff member of rec. 1950 */ 1951 static void 1952 init_secbuffs(mandb_rec *rec) 1953 { 1954 /* 1955 * Some sec_buff might need more memory, for example desc, 1956 * which stores the data of the DESCRIPTION section, 1957 * while some might need very small amount of memory. 1958 * Therefore explicitly setting the value of buflen field for 1959 * each sec_buff. 1960 */ 1961 rec->desc.buflen = 10 * BUFLEN; 1962 rec->desc.data = emalloc(rec->desc.buflen); 1963 rec->desc.offset = 0; 1964 1965 rec->lib.buflen = BUFLEN / 2; 1966 rec->lib.data = emalloc(rec->lib.buflen); 1967 rec->lib.offset = 0; 1968 1969 rec->return_vals.buflen = BUFLEN; 1970 rec->return_vals.data = emalloc(rec->return_vals.buflen); 1971 rec->return_vals.offset = 0; 1972 1973 rec->exit_status.buflen = BUFLEN; 1974 rec->exit_status.data = emalloc(rec->exit_status.buflen); 1975 rec->exit_status.offset = 0; 1976 1977 rec->env.buflen = BUFLEN; 1978 rec->env.data = emalloc(rec->env.buflen); 1979 rec->env.offset = 0; 1980 1981 rec->files.buflen = BUFLEN; 1982 rec->files.data = emalloc(rec->files.buflen); 1983 rec->files.offset = 0; 1984 1985 rec->diagnostics.buflen = BUFLEN; 1986 rec->diagnostics.data = emalloc(rec->diagnostics.buflen); 1987 rec->diagnostics.offset = 0; 1988 1989 rec->errors.buflen = BUFLEN; 1990 rec->errors.data = emalloc(rec->errors.buflen); 1991 rec->errors.offset = 0; 1992 } 1993 1994 /* 1995 * free_secbuffs-- 1996 * This function should be called at the end, when all the pages have been 1997 * parsed. 1998 * It frees the memory allocated to sec_buffs by init_secbuffs in the starting. 1999 */ 2000 static void 2001 free_secbuffs(mandb_rec *rec) 2002 { 2003 free(rec->desc.data); 2004 free(rec->lib.data); 2005 free(rec->return_vals.data); 2006 free(rec->exit_status.data); 2007 free(rec->env.data); 2008 free(rec->files.data); 2009 free(rec->diagnostics.data); 2010 free(rec->errors.data); 2011 } 2012 2013 static void 2014 replace_hyph(char *str) 2015 { 2016 char *iter = str; 2017 while ((iter = strchr(iter, ASCII_HYPH)) != NULL) 2018 *iter = '-'; 2019 2020 iter = str; 2021 while ((iter = strchr(iter, ASCII_NBRSP)) != NULL) 2022 *iter = '-'; 2023 } 2024 2025 static char * 2026 parse_escape(const char *str) 2027 { 2028 const char *backslash, *last_backslash; 2029 char *result, *iter; 2030 size_t len; 2031 2032 assert(str); 2033 2034 last_backslash = str; 2035 backslash = strchr(str, '\\'); 2036 if (backslash == NULL) { 2037 result = estrdup(str); 2038 replace_hyph(result); 2039 return result; 2040 } 2041 2042 result = emalloc(strlen(str) + 1); 2043 iter = result; 2044 2045 do { 2046 len = backslash - last_backslash; 2047 memcpy(iter, last_backslash, len); 2048 iter += len; 2049 if (backslash[1] == '-' || backslash[1] == ' ') { 2050 *iter++ = backslash[1]; 2051 last_backslash = backslash + 2; 2052 backslash = strchr(last_backslash, '\\'); 2053 } else { 2054 ++backslash; 2055 mandoc_escape(&backslash, NULL, NULL); 2056 last_backslash = backslash; 2057 if (backslash == NULL) 2058 break; 2059 backslash = strchr(last_backslash, '\\'); 2060 } 2061 } while (backslash != NULL); 2062 if (last_backslash != NULL) 2063 strcpy(iter, last_backslash); 2064 2065 replace_hyph(result); 2066 return result; 2067 } 2068 2069 /* 2070 * append-- 2071 * Concatenates a space and src at the end of sbuff->data (much like concat in 2072 * apropos-utils.c). 2073 * Rather than reallocating space for writing data, it uses the value of the 2074 * offset field of sec_buff to write new data at the free space left in the 2075 * buffer. 2076 * In case the size of the data to be appended exceeds the number of bytes left 2077 * in the buffer, it reallocates buflen number of bytes and then continues. 2078 * Value of offset field should be adjusted as new data is written. 2079 * 2080 * NOTE: This function does not write the null byte at the end of the buffers, 2081 * write a null byte at the position pointed to by offset before inserting data 2082 * in the db. 2083 */ 2084 static void 2085 append(secbuff *sbuff, const char *src) 2086 { 2087 short flag = 0; 2088 size_t srclen, newlen; 2089 char *temp; 2090 2091 assert(src != NULL); 2092 temp = parse_escape(src); 2093 srclen = strlen(temp); 2094 2095 if (sbuff->data == NULL) { 2096 sbuff->data = emalloc(sbuff->buflen); 2097 sbuff->offset = 0; 2098 } 2099 2100 newlen = sbuff->offset + srclen + 2; 2101 if (newlen >= sbuff->buflen) { 2102 while (sbuff->buflen < newlen) 2103 sbuff->buflen += sbuff->buflen; 2104 sbuff->data = erealloc(sbuff->data, sbuff->buflen); 2105 flag = 1; 2106 } 2107 2108 /* Append a space at the end of the buffer. */ 2109 if (sbuff->offset || flag) 2110 sbuff->data[sbuff->offset++] = ' '; 2111 /* Now, copy src at the end of the buffer. */ 2112 memcpy(sbuff->data + sbuff->offset, temp, srclen); 2113 sbuff->offset += srclen; 2114 free(temp); 2115 } 2116 2117 static void 2118 usage(void) 2119 { 2120 fprintf(stderr, "Usage: %s [-floQqv] [-C path]\n", getprogname()); 2121 exit(1); 2122 } 2123
Indexes created Mon Sep 29 21:09:56 GMT 2025