makemandb.c revision 1.20
1 /* $NetBSD: makemandb.c,v 1.20 2013/11/13 18:46:33 wiz 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 1.20 2013/11/13 18:46:33 wiz Exp $"); 21 22 #include <sys/stat.h> 23 #include <sys/types.h> 24 25 #include <assert.h> 26 #include <ctype.h> 27 #include <dirent.h> 28 #include <err.h> 29 #include <archive.h> 30 #include <libgen.h> 31 #include <md5.h> 32 #include <stdio.h> 33 #include <stdlib.h> 34 #include <string.h> 35 #include <unistd.h> 36 #include <util.h> 37 38 #include "apropos-utils.h" 39 #include "dist/man.h" 40 #include "dist/mandoc.h" 41 #include "dist/mdoc.h" 42 #include "sqlite3.h" 43 44 #define BUFLEN 1024 45 #define MDOC 0 //If the page is of mdoc(7) type 46 #define MAN 1 //If the page is of man(7) type 47 48 /* 49 * A data structure for holding section specific data. 50 */ 51 typedef struct secbuff { 52 char *data; 53 size_t buflen; //Total length of buffer allocated initially 54 size_t offset; // Current offset in the buffer. 55 } secbuff; 56 57 typedef struct makemandb_flags { 58 int optimize; 59 int limit; // limit the indexing to only NAME section 60 int recreate; // Database was created from scratch 61 int verbosity; // 0: quiet, 1: default, 2: verbose 62 } makemandb_flags; 63 64 typedef struct mandb_rec { 65 /* Fields for mandb table */ 66 char *name; // for storing the name of the man page 67 char *name_desc; // for storing the one line description (.Nd) 68 secbuff desc; // for storing the DESCRIPTION section 69 secbuff lib; // for the LIBRARY section 70 secbuff return_vals; // RETURN VALUES 71 secbuff env; // ENVIRONMENT 72 secbuff files; // FILES 73 secbuff exit_status; // EXIT STATUS 74 secbuff diagnostics; // DIAGNOSTICS 75 secbuff errors; // ERRORS 76 char section[2]; 77 78 int xr_found; 79 80 /* Fields for mandb_meta table */ 81 char *md5_hash; 82 dev_t device; 83 ino_t inode; 84 time_t mtime; 85 86 /* Fields for mandb_links table */ 87 char *machine; 88 char *links; //all the links to a page in a space separated form 89 char *file_path; 90 91 /* Non-db fields */ 92 int page_type; //Indicates the type of page: mdoc or man 93 } mandb_rec; 94 95 static void append(secbuff *sbuff, const char *src); 96 static void init_secbuffs(mandb_rec *); 97 static void free_secbuffs(mandb_rec *); 98 static int check_md5(const char *, sqlite3 *, const char *, char **, void *, size_t); 99 static void cleanup(mandb_rec *); 100 static void set_section(const struct mdoc *, const struct man *, mandb_rec *); 101 static void set_machine(const struct mdoc *, mandb_rec *); 102 static int insert_into_db(sqlite3 *, mandb_rec *); 103 static void begin_parse(const char *, struct mparse *, mandb_rec *, 104 const void *, size_t len); 105 static void pmdoc_node(const struct mdoc_node *, mandb_rec *); 106 static void pmdoc_Nm(const struct mdoc_node *, mandb_rec *); 107 static void pmdoc_Nd(const struct mdoc_node *, mandb_rec *); 108 static void pmdoc_Sh(const struct mdoc_node *, mandb_rec *); 109 static void pmdoc_Xr(const struct mdoc_node *, mandb_rec *); 110 static void pmdoc_Pp(const struct mdoc_node *, mandb_rec *); 111 static void pmdoc_macro_handler(const struct mdoc_node *, mandb_rec *, 112 enum mdoct); 113 static void pman_node(const struct man_node *n, mandb_rec *); 114 static void pman_parse_node(const struct man_node *, secbuff *); 115 static void pman_parse_name(const struct man_node *, mandb_rec *); 116 static void pman_sh(const struct man_node *, mandb_rec *); 117 static void pman_block(const struct man_node *, mandb_rec *); 118 static void traversedir(const char *, const char *, sqlite3 *, struct mparse *); 119 static void mdoc_parse_section(enum mdoc_sec, const char *, mandb_rec *); 120 static void man_parse_section(enum man_sec, const struct man_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 makemandb_flags mflags = { .verbosity = 1 }; 128 129 typedef void (*pman_nf)(const struct man_node *n, mandb_rec *); 130 typedef void (*pmdoc_nf)(const struct mdoc_node *n, mandb_rec *); 131 static const pmdoc_nf mdocs[MDOC_MAX] = { 132 NULL, /* Ap */ 133 NULL, /* Dd */ 134 NULL, /* Dt */ 135 NULL, /* Os */ 136 pmdoc_Sh, /* Sh */ 137 NULL, /* Ss */ 138 pmdoc_Pp, /* Pp */ 139 NULL, /* D1 */ 140 NULL, /* Dl */ 141 NULL, /* Bd */ 142 NULL, /* Ed */ 143 NULL, /* Bl */ 144 NULL, /* El */ 145 NULL, /* It */ 146 NULL, /* Ad */ 147 NULL, /* An */ 148 NULL, /* Ar */ 149 NULL, /* Cd */ 150 NULL, /* Cm */ 151 NULL, /* Dv */ 152 NULL, /* Er */ 153 NULL, /* Ev */ 154 NULL, /* Ex */ 155 NULL, /* Fa */ 156 NULL, /* Fd */ 157 NULL, /* Fl */ 158 NULL, /* Fn */ 159 NULL, /* Ft */ 160 NULL, /* Ic */ 161 NULL, /* In */ 162 NULL, /* Li */ 163 pmdoc_Nd, /* Nd */ 164 pmdoc_Nm, /* Nm */ 165 NULL, /* Op */ 166 NULL, /* Ot */ 167 NULL, /* Pa */ 168 NULL, /* Rv */ 169 NULL, /* St */ 170 NULL, /* Va */ 171 NULL, /* Vt */ 172 pmdoc_Xr, /* Xr */ 173 NULL, /* %A */ 174 NULL, /* %B */ 175 NULL, /* %D */ 176 NULL, /* %I */ 177 NULL, /* %J */ 178 NULL, /* %N */ 179 NULL, /* %O */ 180 NULL, /* %P */ 181 NULL, /* %R */ 182 NULL, /* %T */ 183 NULL, /* %V */ 184 NULL, /* Ac */ 185 NULL, /* Ao */ 186 NULL, /* Aq */ 187 NULL, /* At */ 188 NULL, /* Bc */ 189 NULL, /* Bf */ 190 NULL, /* Bo */ 191 NULL, /* Bq */ 192 NULL, /* Bsx */ 193 NULL, /* Bx */ 194 NULL, /* Db */ 195 NULL, /* Dc */ 196 NULL, /* Do */ 197 NULL, /* Dq */ 198 NULL, /* Ec */ 199 NULL, /* Ef */ 200 NULL, /* Em */ 201 NULL, /* Eo */ 202 NULL, /* Fx */ 203 NULL, /* Ms */ 204 NULL, /* No */ 205 NULL, /* Ns */ 206 NULL, /* Nx */ 207 NULL, /* Ox */ 208 NULL, /* Pc */ 209 NULL, /* Pf */ 210 NULL, /* Po */ 211 NULL, /* Pq */ 212 NULL, /* Qc */ 213 NULL, /* Ql */ 214 NULL, /* Qo */ 215 NULL, /* Qq */ 216 NULL, /* Re */ 217 NULL, /* Rs */ 218 NULL, /* Sc */ 219 NULL, /* So */ 220 NULL, /* Sq */ 221 NULL, /* Sm */ 222 NULL, /* Sx */ 223 NULL, /* Sy */ 224 NULL, /* Tn */ 225 NULL, /* Ux */ 226 NULL, /* Xc */ 227 NULL, /* Xo */ 228 NULL, /* Fo */ 229 NULL, /* Fc */ 230 NULL, /* Oo */ 231 NULL, /* Oc */ 232 NULL, /* Bk */ 233 NULL, /* Ek */ 234 NULL, /* Bt */ 235 NULL, /* Hf */ 236 NULL, /* Fr */ 237 NULL, /* Ud */ 238 NULL, /* Lb */ 239 NULL, /* Lp */ 240 NULL, /* Lk */ 241 NULL, /* Mt */ 242 NULL, /* Brq */ 243 NULL, /* Bro */ 244 NULL, /* Brc */ 245 NULL, /* %C */ 246 NULL, /* Es */ 247 NULL, /* En */ 248 NULL, /* Dx */ 249 NULL, /* %Q */ 250 NULL, /* br */ 251 NULL, /* sp */ 252 NULL, /* %U */ 253 NULL, /* Ta */ 254 }; 255 256 static const pman_nf mans[MAN_MAX] = { 257 NULL, //br 258 NULL, //TH 259 pman_sh, //SH 260 NULL, //SS 261 NULL, //TP 262 NULL, //LP 263 NULL, //PP 264 NULL, //P 265 NULL, //IP 266 NULL, //HP 267 NULL, //SM 268 NULL, //SB 269 NULL, //BI 270 NULL, //IB 271 NULL, //BR 272 NULL, //RB 273 NULL, //R 274 pman_block, //B 275 NULL, //I 276 NULL, //IR 277 NULL, //RI 278 NULL, //na 279 NULL, //sp 280 NULL, //nf 281 NULL, //fi 282 NULL, //RE 283 NULL, //RS 284 NULL, //DT 285 NULL, //UC 286 NULL, //PD 287 NULL, //AT 288 NULL, //in 289 NULL, //ft 290 }; 291 292 293 int 294 main(int argc, char *argv[]) 295 { 296 FILE *file; 297 const char *sqlstr, *manconf = NULL; 298 char *line, *command, *parent; 299 char *errmsg; 300 int ch; 301 struct mparse *mp; 302 sqlite3 *db; 303 ssize_t len; 304 size_t linesize; 305 struct mandb_rec rec; 306 307 while ((ch = getopt(argc, argv, "C:floQqv")) != -1) { 308 switch (ch) { 309 case 'C': 310 manconf = optarg; 311 break; 312 case 'f': 313 mflags.recreate = 1; 314 break; 315 case 'l': 316 mflags.limit = 1; 317 break; 318 case 'o': 319 mflags.optimize = 1; 320 break; 321 case 'Q': 322 mflags.verbosity = 0; 323 break; 324 case 'q': 325 mflags.verbosity = 1; 326 break; 327 case 'v': 328 mflags.verbosity = 2; 329 break; 330 default: 331 usage(); 332 } 333 } 334 335 memset(&rec, 0, sizeof(rec)); 336 337 init_secbuffs(&rec); 338 mp = mparse_alloc(MPARSE_AUTO, MANDOCLEVEL_FATAL, NULL, NULL); 339 340 if (manconf) { 341 char *arg; 342 size_t command_len = shquote(manconf, NULL, 0) + 1; 343 arg = emalloc(command_len); 344 shquote(manconf, arg, command_len); 345 easprintf(&command, "man -p -C %s", arg); 346 free(arg); 347 } else { 348 command = estrdup("man -p"); 349 manconf = MANCONF; 350 } 351 352 if (mflags.recreate) { 353 char *dbp = get_dbpath(manconf); 354 /* No error here, it will fail in init_db in the same call */ 355 if (dbp != NULL) 356 remove(dbp); 357 } 358 359 if ((db = init_db(MANDB_CREATE, manconf)) == NULL) 360 exit(EXIT_FAILURE); 361 362 sqlite3_exec(db, "PRAGMA synchronous = 0", NULL, NULL, &errmsg); 363 if (errmsg != NULL) { 364 warnx("%s", errmsg); 365 free(errmsg); 366 close_db(db); 367 exit(EXIT_FAILURE); 368 } 369 370 sqlite3_exec(db, "ATTACH DATABASE \':memory:\' AS metadb", NULL, NULL, 371 &errmsg); 372 if (errmsg != NULL) { 373 warnx("%s", errmsg); 374 free(errmsg); 375 close_db(db); 376 exit(EXIT_FAILURE); 377 } 378 379 380 /* Call man -p to get the list of man page dirs */ 381 if ((file = popen(command, "r")) == NULL) { 382 close_db(db); 383 err(EXIT_FAILURE, "fopen failed"); 384 } 385 free(command); 386 387 /* Begin the transaction for indexing the pages */ 388 sqlite3_exec(db, "BEGIN", NULL, NULL, &errmsg); 389 if (errmsg != NULL) { 390 warnx("%s", errmsg); 391 free(errmsg); 392 exit(EXIT_FAILURE); 393 } 394 395 sqlstr = "CREATE TABLE metadb.file_cache(device, inode, mtime, parent," 396 " file PRIMARY KEY);" 397 "CREATE UNIQUE INDEX metadb.index_file_cache_dev" 398 " ON file_cache (device, inode)"; 399 400 sqlite3_exec(db, sqlstr, NULL, NULL, &errmsg); 401 if (errmsg != NULL) { 402 warnx("%s", errmsg); 403 free(errmsg); 404 close_db(db); 405 exit(EXIT_FAILURE); 406 } 407 408 if (mflags.verbosity) 409 printf("Building temporary file cache\n"); 410 line = NULL; 411 linesize = 0; 412 while ((len = getline(&line, &linesize, file)) != -1) { 413 /* Replace the new line character at the end of string with '\0' */ 414 line[len - 1] = '\0'; 415 parent = estrdup(line); 416 char *pdir = estrdup(dirname(parent)); 417 free(parent); 418 /* Traverse the man page directories and parse the pages */ 419 traversedir(pdir, line, db, mp); 420 free(pdir); 421 } 422 free(line); 423 424 if (pclose(file) == -1) { 425 close_db(db); 426 cleanup(&rec); 427 free_secbuffs(&rec); 428 err(EXIT_FAILURE, "pclose error"); 429 } 430 431 if (mflags.verbosity) 432 printf("Performing index update\n"); 433 update_db(db, mp, &rec); 434 mparse_free(mp); 435 free_secbuffs(&rec); 436 437 /* Commit the transaction */ 438 sqlite3_exec(db, "COMMIT", NULL, NULL, &errmsg); 439 if (errmsg != NULL) { 440 warnx("%s", errmsg); 441 free(errmsg); 442 exit(EXIT_FAILURE); 443 } 444 445 if (mflags.optimize) 446 optimize(db); 447 448 close_db(db); 449 return 0; 450 } 451 452 /* 453 * traversedir -- 454 * Traverses the given directory recursively and passes all the man page files 455 * in the way to build_file_cache() 456 */ 457 static void 458 traversedir(const char *parent, const char *file, sqlite3 *db, 459 struct mparse *mp) 460 { 461 struct stat sb; 462 struct dirent *dirp; 463 DIR *dp; 464 char *buf; 465 466 if (stat(file, &sb) < 0) { 467 if (mflags.verbosity) 468 warn("stat failed: %s", file); 469 return; 470 } 471 472 /* If it is a directory, traverse it recursively */ 473 if (S_ISDIR(sb.st_mode)) { 474 if ((dp = opendir(file)) == NULL) { 475 if (mflags.verbosity) 476 warn("opendir error: %s", file); 477 return; 478 } 479 480 while ((dirp = readdir(dp)) != NULL) { 481 /* Avoid . and .. entries in a directory */ 482 if (strncmp(dirp->d_name, ".", 1)) { 483 easprintf(&buf, "%s/%s", file, dirp->d_name); 484 traversedir(parent, buf, db, mp); 485 free(buf); 486 } 487 } 488 closedir(dp); 489 } 490 491 if (!S_ISREG(sb.st_mode) && !S_ISLNK(sb.st_mode)) 492 return; 493 494 if (sb.st_size == 0) { 495 if (mflags.verbosity) 496 warnx("Empty file: %s", file); 497 return; 498 } 499 build_file_cache(db, parent, file, &sb); 500 } 501 502 /* build_file_cache -- 503 * This function generates an md5 hash of the file passed as it's 2nd parameter 504 * and stores it in a temporary table file_cache along with the full file path. 505 * This is done to support incremental updation of the database. 506 * The temporary table file_cache is dropped thereafter in the function 507 * update_db(), once the database has been updated. 508 */ 509 static void 510 build_file_cache(sqlite3 *db, const char *parent, const char *file, 511 struct stat *sb) 512 { 513 const char *sqlstr; 514 sqlite3_stmt *stmt = NULL; 515 int rc, idx; 516 assert(file != NULL); 517 dev_t device_cache = sb->st_dev; 518 ino_t inode_cache = sb->st_ino; 519 time_t mtime_cache = sb->st_mtime; 520 521 sqlstr = "INSERT INTO metadb.file_cache VALUES (:device, :inode," 522 " :mtime, :parent, :file)"; 523 rc = sqlite3_prepare_v2(db, sqlstr, -1, &stmt, NULL); 524 if (rc != SQLITE_OK) { 525 if (mflags.verbosity) 526 warnx("%s", sqlite3_errmsg(db)); 527 return; 528 } 529 530 idx = sqlite3_bind_parameter_index(stmt, ":device"); 531 rc = sqlite3_bind_int64(stmt, idx, device_cache); 532 if (rc != SQLITE_OK) { 533 if (mflags.verbosity) 534 warnx("%s", sqlite3_errmsg(db)); 535 sqlite3_finalize(stmt); 536 return; 537 } 538 539 idx = sqlite3_bind_parameter_index(stmt, ":inode"); 540 rc = sqlite3_bind_int64(stmt, idx, inode_cache); 541 if (rc != SQLITE_OK) { 542 if (mflags.verbosity) 543 warnx("%s", sqlite3_errmsg(db)); 544 sqlite3_finalize(stmt); 545 return; 546 } 547 548 idx = sqlite3_bind_parameter_index(stmt, ":mtime"); 549 rc = sqlite3_bind_int64(stmt, idx, mtime_cache); 550 if (rc != SQLITE_OK) { 551 if (mflags.verbosity) 552 warnx("%s", sqlite3_errmsg(db)); 553 sqlite3_finalize(stmt); 554 return; 555 } 556 557 idx = sqlite3_bind_parameter_index(stmt, ":parent"); 558 rc = sqlite3_bind_text(stmt, idx, parent, -1, NULL); 559 if (rc != SQLITE_OK) { 560 if (mflags.verbosity) 561 warnx("%s", sqlite3_errmsg(db)); 562 sqlite3_finalize(stmt); 563 return; 564 } 565 566 idx = sqlite3_bind_parameter_index(stmt, ":file"); 567 rc = sqlite3_bind_text(stmt, idx, file, -1, NULL); 568 if (rc != SQLITE_OK) { 569 if (mflags.verbosity) 570 warnx("%s", sqlite3_errmsg(db)); 571 sqlite3_finalize(stmt); 572 return; 573 } 574 575 sqlite3_step(stmt); 576 sqlite3_finalize(stmt); 577 } 578 579 static void 580 update_existing_entry(sqlite3 *db, const char *file, const char *hash, 581 mandb_rec *rec, int *new_count, int *link_count, int *err_count) 582 { 583 int update_count, rc, idx; 584 const char *inner_sqlstr; 585 sqlite3_stmt *inner_stmt; 586 587 update_count = sqlite3_total_changes(db); 588 inner_sqlstr = "UPDATE mandb_meta SET device = :device," 589 " inode = :inode, mtime = :mtime WHERE" 590 " md5_hash = :md5 AND file = :file AND" 591 " (device <> :device2 OR inode <> " 592 " :inode2 OR mtime <> :mtime2)"; 593 rc = sqlite3_prepare_v2(db, inner_sqlstr, -1, &inner_stmt, NULL); 594 if (rc != SQLITE_OK) { 595 if (mflags.verbosity) 596 warnx("%s", sqlite3_errmsg(db)); 597 return; 598 } 599 idx = sqlite3_bind_parameter_index(inner_stmt, ":device"); 600 sqlite3_bind_int64(inner_stmt, idx, rec->device); 601 idx = sqlite3_bind_parameter_index(inner_stmt, ":inode"); 602 sqlite3_bind_int64(inner_stmt, idx, rec->inode); 603 idx = sqlite3_bind_parameter_index(inner_stmt, ":mtime"); 604 sqlite3_bind_int64(inner_stmt, idx, rec->mtime); 605 idx = sqlite3_bind_parameter_index(inner_stmt, ":md5"); 606 sqlite3_bind_text(inner_stmt, idx, hash, -1, NULL); 607 idx = sqlite3_bind_parameter_index(inner_stmt, ":file"); 608 sqlite3_bind_text(inner_stmt, idx, file, -1, NULL); 609 idx = sqlite3_bind_parameter_index(inner_stmt, ":device2"); 610 sqlite3_bind_int64(inner_stmt, idx, rec->device); 611 idx = sqlite3_bind_parameter_index(inner_stmt, ":inode2"); 612 sqlite3_bind_int64(inner_stmt, idx, rec->inode); 613 idx = sqlite3_bind_parameter_index(inner_stmt, ":mtime2"); 614 sqlite3_bind_int64(inner_stmt, idx, rec->mtime); 615 616 rc = sqlite3_step(inner_stmt); 617 if (rc == SQLITE_DONE) { 618 /* Check if an update has been performed. */ 619 if (update_count != sqlite3_total_changes(db)) { 620 if (mflags.verbosity == 2) 621 printf("Updated %s\n", file); 622 (*new_count)++; 623 } else { 624 /* Otherwise it was a hardlink. */ 625 (*link_count)++; 626 } 627 } else { 628 if (mflags.verbosity == 2) 629 warnx("Could not update the meta data for %s", file); 630 (*err_count)++; 631 } 632 sqlite3_finalize(inner_stmt); 633 } 634 635 /* read_and_decompress -- 636 * Reads the given file into memory. If it is compressed, decompres 637 * it before returning to the caller. 638 */ 639 static int 640 read_and_decompress(const char *file, void **buf, size_t *len) 641 { 642 size_t off; 643 ssize_t r; 644 struct archive *a; 645 struct archive_entry *ae; 646 647 if ((a = archive_read_new()) == NULL) 648 errx(EXIT_FAILURE, "memory allocation failed"); 649 650 if (archive_read_support_compression_all(a) != ARCHIVE_OK || 651 archive_read_support_format_raw(a) != ARCHIVE_OK || 652 archive_read_open_filename(a, file, 65536) != ARCHIVE_OK || 653 archive_read_next_header(a, &ae) != ARCHIVE_OK) 654 goto archive_error; 655 *len = 65536; 656 *buf = emalloc(*len); 657 off = 0; 658 for (;;) { 659 r = archive_read_data(a, (char *)*buf + off, *len - off); 660 if (r == ARCHIVE_OK) { 661 archive_read_close(a); 662 *len = off; 663 return 0; 664 } 665 if (r <= 0) { 666 free(*buf); 667 break; 668 } 669 off += r; 670 if (off == *len) { 671 *len *= 2; 672 if (*len < off) { 673 if (mflags.verbosity) 674 warnx("File too large: %s", file); 675 free(*buf); 676 archive_read_close(a); 677 return -1; 678 } 679 *buf = erealloc(*buf, *len); 680 } 681 } 682 683 archive_error: 684 warnx("Error while reading `%s': %s", file, archive_error_string(a)); 685 archive_read_close(a); 686 return -1; 687 } 688 689 /* update_db -- 690 * Does an incremental updation of the database by checking the file_cache. 691 * It parses and adds the pages which are present in file_cache, 692 * but not in the database. 693 * It also removes the pages which are present in the databse, 694 * but not in the file_cache. 695 */ 696 static void 697 update_db(sqlite3 *db, struct mparse *mp, mandb_rec *rec) 698 { 699 const char *sqlstr; 700 sqlite3_stmt *stmt = NULL; 701 const char *file; 702 const char *parent; 703 char *errmsg = NULL; 704 char *md5sum; 705 void *buf; 706 size_t buflen; 707 int new_count = 0; /* Counter for newly indexed/updated pages */ 708 int total_count = 0; /* Counter for total number of pages */ 709 int err_count = 0; /* Counter for number of failed pages */ 710 int link_count = 0; /* Counter for number of hard/sym links */ 711 int md5_status; 712 int rc; 713 714 sqlstr = "SELECT device, inode, mtime, parent, file" 715 " FROM metadb.file_cache fc" 716 " WHERE NOT EXISTS(SELECT 1 FROM mandb_meta WHERE" 717 " device = fc.device AND inode = fc.inode AND " 718 " mtime = fc.mtime AND file = fc.file)"; 719 720 rc = sqlite3_prepare_v2(db, sqlstr, -1, &stmt, NULL); 721 if (rc != SQLITE_OK) { 722 if (mflags.verbosity) 723 warnx("%s", sqlite3_errmsg(db)); 724 close_db(db); 725 errx(EXIT_FAILURE, "Could not query file cache"); 726 } 727 728 buf = NULL; 729 while (sqlite3_step(stmt) == SQLITE_ROW) { 730 free(buf); 731 total_count++; 732 rec->device = sqlite3_column_int64(stmt, 0); 733 rec->inode = sqlite3_column_int64(stmt, 1); 734 rec->mtime = sqlite3_column_int64(stmt, 2); 735 parent = (const char *) sqlite3_column_text(stmt, 3); 736 file = (const char *) sqlite3_column_text(stmt, 4); 737 if (read_and_decompress(file, &buf, &buflen)) { 738 err_count++; 739 buf = NULL; 740 continue; 741 } 742 md5_status = check_md5(file, db, "mandb_meta", &md5sum, buf, buflen); 743 assert(md5sum != NULL); 744 if (md5_status == -1) { 745 if (mflags.verbosity) 746 warnx("An error occurred in checking md5 value" 747 " for file %s", file); 748 err_count++; 749 continue; 750 } 751 752 if (md5_status == 0) { 753 /* 754 * The MD5 hash is already present in the database, 755 * so simply update the metadata, ignoring symlinks. 756 */ 757 struct stat sb; 758 stat(file, &sb); 759 if (S_ISLNK(sb.st_mode)) { 760 free(md5sum); 761 link_count++; 762 continue; 763 } 764 update_existing_entry(db, file, md5sum, rec, 765 &new_count, &link_count, &err_count); 766 free(md5sum); 767 continue; 768 } 769 770 if (md5_status == 1) { 771 /* 772 * The MD5 hash was not present in the database. 773 * This means is either a new file or an updated file. 774 * We should go ahead with parsing. 775 */ 776 if (mflags.verbosity == 2) 777 printf("Parsing: %s\n", file); 778 rec->md5_hash = md5sum; 779 rec->file_path = estrdup(file); 780 // file_path is freed by insert_into_db itself. 781 chdir(parent); 782 begin_parse(file, mp, rec, buf, buflen); 783 if (insert_into_db(db, rec) < 0) { 784 if (mflags.verbosity) 785 warnx("Error in indexing %s", file); 786 err_count++; 787 } else { 788 new_count++; 789 } 790 } 791 } 792 free(buf); 793 794 sqlite3_finalize(stmt); 795 796 if (mflags.verbosity == 2) { 797 printf("Total Number of new or updated pages encountered = %d\n" 798 "Total number of (hard or symbolic) links found = %d\n" 799 "Total number of pages that were successfully" 800 " indexed/updated = %d\n" 801 "Total number of pages that could not be indexed" 802 " due to errors = %d\n", 803 total_count - link_count, link_count, new_count, err_count); 804 } 805 806 if (mflags.recreate) 807 return; 808 809 if (mflags.verbosity == 2) 810 printf("Deleting stale index entries\n"); 811 812 sqlstr = "DELETE FROM mandb_meta WHERE file NOT IN" 813 " (SELECT file FROM metadb.file_cache);" 814 "DELETE FROM mandb_links WHERE md5_hash NOT IN" 815 " (SELECT md5_hash from mandb_meta);" 816 "DROP TABLE metadb.file_cache;" 817 "DELETE FROM mandb WHERE rowid NOT IN" 818 " (SELECT id FROM mandb_meta);"; 819 820 sqlite3_exec(db, sqlstr, NULL, NULL, &errmsg); 821 if (errmsg != NULL) { 822 warnx("Removing old entries failed: %s", errmsg); 823 warnx("Please rebuild database from scratch with -f."); 824 free(errmsg); 825 return; 826 } 827 } 828 829 /* 830 * begin_parse -- 831 * parses the man page using libmandoc 832 */ 833 static void 834 begin_parse(const char *file, struct mparse *mp, mandb_rec *rec, 835 const void *buf, size_t len) 836 { 837 struct mdoc *mdoc; 838 struct man *man; 839 mparse_reset(mp); 840 841 rec->xr_found = 0; 842 843 if (mparse_readmem(mp, buf, len, file) >= MANDOCLEVEL_FATAL) { 844 /* Printing this warning at verbosity level 2 845 * because some packages from pkgsrc might trigger several 846 * of such warnings. 847 */ 848 if (mflags.verbosity == 2) 849 warnx("%s: Parse failure", file); 850 return; 851 } 852 853 mparse_result(mp, &mdoc, &man); 854 if (mdoc == NULL && man == NULL) { 855 if (mflags.verbosity == 2) 856 warnx("Not a man(7) or mdoc(7) page"); 857 return; 858 } 859 860 set_machine(mdoc, rec); 861 set_section(mdoc, man, rec); 862 if (mdoc) { 863 rec->page_type = MDOC; 864 pmdoc_node(mdoc_node(mdoc), rec); 865 } else { 866 rec->page_type = MAN; 867 pman_node(man_node(man), rec); 868 } 869 } 870 871 /* 872 * set_section -- 873 * Extracts the section number and normalizes it to only the numeric part 874 * (Which should be the first character of the string). 875 */ 876 static void 877 set_section(const struct mdoc *md, const struct man *m, mandb_rec *rec) 878 { 879 if (md) { 880 const struct mdoc_meta *md_meta = mdoc_meta(md); 881 rec->section[0] = md_meta->msec[0]; 882 } else if (m) { 883 const struct man_meta *m_meta = man_meta(m); 884 rec->section[0] = m_meta->msec[0]; 885 } 886 } 887 888 /* 889 * get_machine -- 890 * Extracts the machine architecture information if available. 891 */ 892 static void 893 set_machine(const struct mdoc *md, mandb_rec *rec) 894 { 895 if (md == NULL) 896 return; 897 const struct mdoc_meta *md_meta = mdoc_meta(md); 898 if (md_meta->arch) 899 rec->machine = estrdup(md_meta->arch); 900 } 901 902 static void 903 pmdoc_node(const struct mdoc_node *n, mandb_rec *rec) 904 { 905 906 if (n == NULL) 907 return; 908 909 switch (n->type) { 910 case (MDOC_BODY): 911 /* FALLTHROUGH */ 912 case (MDOC_TAIL): 913 /* FALLTHROUGH */ 914 case (MDOC_ELEM): 915 if (mdocs[n->tok] == NULL) 916 break; 917 (*mdocs[n->tok])(n, rec); 918 break; 919 default: 920 break; 921 } 922 923 pmdoc_node(n->child, rec); 924 pmdoc_node(n->next, rec); 925 } 926 927 /* 928 * pmdoc_Nm -- 929 * Extracts the Name of the manual page from the .Nm macro 930 */ 931 static void 932 pmdoc_Nm(const struct mdoc_node *n, mandb_rec *rec) 933 { 934 if (n->sec != SEC_NAME) 935 return; 936 937 for (n = n->child; n; n = n->next) { 938 if (n->type == MDOC_TEXT) { 939 concat(&rec->name, n->string); 940 } 941 } 942 } 943 944 /* 945 * pmdoc_Nd -- 946 * Extracts the one line description of the man page from the .Nd macro 947 */ 948 static void 949 pmdoc_Nd(const struct mdoc_node *n, mandb_rec *rec) 950 { 951 /* 952 * A static variable for keeping track of whether a Xr macro was seen 953 * previously. 954 */ 955 char *buf = NULL; 956 char *temp; 957 958 if (n == NULL) 959 return; 960 961 if (n->type == MDOC_TEXT) { 962 if (rec->xr_found && n->next) { 963 /* 964 * An Xr macro was seen previously, so parse this 965 * and the next node. 966 */ 967 temp = estrdup(n->string); 968 n = n->next; 969 easprintf(&buf, "%s(%s)", temp, n->string); 970 concat(&rec->name_desc, buf); 971 free(buf); 972 free(temp); 973 } else { 974 concat(&rec->name_desc, n->string); 975 } 976 rec->xr_found = 0; 977 } else if (mdocs[n->tok] == pmdoc_Xr) { 978 /* Remember that we have encountered an Xr macro */ 979 rec->xr_found = 1; 980 } 981 982 if (n->child) 983 pmdoc_Nd(n->child, rec); 984 985 if(n->next) 986 pmdoc_Nd(n->next, rec); 987 } 988 989 /* 990 * pmdoc_macro_handler-- 991 * This function is a single point of handling all the special macros that we 992 * want to handle especially. For example the .Xr macro for properly parsing 993 * the referenced page name along with the section number, or the .Pp macro 994 * for adding a new line whenever we encounter it. 995 */ 996 static void 997 pmdoc_macro_handler(const struct mdoc_node *n, mandb_rec *rec, enum mdoct doct) 998 { 999 const struct mdoc_node *sn; 1000 assert(n); 1001 1002 switch (doct) { 1003 /* Parse the man page references. 1004 * Basically the .Xr macros are used like: 1005 * .Xr ls 1 1006 * and formatted like this: 1007 * ls(1) 1008 * Prepare a buffer to format the data like the above example and call 1009 * pmdoc_parse_section to append it. 1010 */ 1011 case MDOC_Xr: 1012 n = n->child; 1013 while (n->type != MDOC_TEXT && n->next) 1014 n = n->next; 1015 1016 if (n && n->type != MDOC_TEXT) 1017 return; 1018 sn = n; 1019 if (n->next) 1020 n = n->next; 1021 1022 while (n->type != MDOC_TEXT && n->next) 1023 n = n->next; 1024 1025 if (n && n->type == MDOC_TEXT) { 1026 size_t len = strlen(sn->string); 1027 char *buf = emalloc(len + 4); 1028 memcpy(buf, sn->string, len); 1029 buf[len] = '('; 1030 buf[len + 1] = n->string[0]; 1031 buf[len + 2] = ')'; 1032 buf[len + 3] = 0; 1033 mdoc_parse_section(n->sec, buf, rec); 1034 free(buf); 1035 } 1036 1037 break; 1038 1039 /* Parse the .Pp macro to add a new line */ 1040 case MDOC_Pp: 1041 if (n->type == MDOC_TEXT) 1042 mdoc_parse_section(n->sec, "\n", rec); 1043 break; 1044 default: 1045 break; 1046 } 1047 1048 } 1049 1050 /* 1051 * pmdoc_Xr, pmdoc_Pp-- 1052 * Empty stubs. 1053 * The parser calls these functions each time it encounters 1054 * a .Xr or .Pp macro. We are parsing all the data from 1055 * the pmdoc_Sh function, so don't do anything here. 1056 * (See if else blocks in pmdoc_Sh.) 1057 */ 1058 static void 1059 pmdoc_Xr(const struct mdoc_node *n, mandb_rec *rec) 1060 { 1061 } 1062 1063 static void 1064 pmdoc_Pp(const struct mdoc_node *n, mandb_rec *rec) 1065 { 1066 } 1067 1068 /* 1069 * pmdoc_Sh -- 1070 * Called when a .Sh macro is encountered and loops through its body, calling 1071 * mdoc_parse_section to append the data to the section specific buffer. 1072 * Two special macros which may occur inside the body of Sh are .Nm and .Xr and 1073 * they need special handling, thus the separate if branches for them. 1074 */ 1075 static void 1076 pmdoc_Sh(const struct mdoc_node *n, mandb_rec *rec) 1077 { 1078 if (n == NULL) 1079 return; 1080 int xr_found = 0; 1081 1082 if (n->type == MDOC_TEXT) { 1083 mdoc_parse_section(n->sec, n->string, rec); 1084 } else if (mdocs[n->tok] == pmdoc_Nm && rec->name != NULL) { 1085 /* 1086 * When encountering a .Nm macro, substitute it 1087 * with its previously cached value of the argument. 1088 */ 1089 mdoc_parse_section(n->sec, rec->name, rec); 1090 } else if (mdocs[n->tok] == pmdoc_Xr) { 1091 /* 1092 * When encountering other inline macros, 1093 * call pmdoc_macro_handler. 1094 */ 1095 pmdoc_macro_handler(n, rec, MDOC_Xr); 1096 xr_found = 1; 1097 } else if (mdocs[n->tok] == pmdoc_Pp) { 1098 pmdoc_macro_handler(n, rec, MDOC_Pp); 1099 } 1100 1101 /* 1102 * If an Xr macro was encountered then the child node has 1103 * already been explored by pmdoc_macro_handler. 1104 */ 1105 if (xr_found == 0) 1106 pmdoc_Sh(n->child, rec); 1107 pmdoc_Sh(n->next, rec); 1108 } 1109 1110 /* 1111 * mdoc_parse_section-- 1112 * Utility function for parsing sections of the mdoc type pages. 1113 * Takes two params: 1114 * 1. sec is an enum which indicates the section in which we are present 1115 * 2. string is the string which we need to append to the secbuff for this 1116 * particular section. 1117 * The function appends string to the global section buffer and returns. 1118 */ 1119 static void 1120 mdoc_parse_section(enum mdoc_sec sec, const char *string, mandb_rec *rec) 1121 { 1122 /* 1123 * If the user specified the 'l' flag, then parse and store only the 1124 * NAME section. Ignore the rest. 1125 */ 1126 if (mflags.limit) 1127 return; 1128 1129 switch (sec) { 1130 case SEC_LIBRARY: 1131 append(&rec->lib, string); 1132 break; 1133 case SEC_RETURN_VALUES: 1134 append(&rec->return_vals, string); 1135 break; 1136 case SEC_ENVIRONMENT: 1137 append(&rec->env, string); 1138 break; 1139 case SEC_FILES: 1140 append(&rec->files, string); 1141 break; 1142 case SEC_EXIT_STATUS: 1143 append(&rec->exit_status, string); 1144 break; 1145 case SEC_DIAGNOSTICS: 1146 append(&rec->diagnostics, string); 1147 break; 1148 case SEC_ERRORS: 1149 append(&rec->errors, string); 1150 break; 1151 case SEC_NAME: 1152 case SEC_SYNOPSIS: 1153 case SEC_EXAMPLES: 1154 case SEC_STANDARDS: 1155 case SEC_HISTORY: 1156 case SEC_AUTHORS: 1157 case SEC_BUGS: 1158 break; 1159 default: 1160 append(&rec->desc, string); 1161 break; 1162 } 1163 } 1164 1165 static void 1166 pman_node(const struct man_node *n, mandb_rec *rec) 1167 { 1168 if (n == NULL) 1169 return; 1170 1171 switch (n->type) { 1172 case (MAN_BODY): 1173 /* FALLTHROUGH */ 1174 case (MAN_TAIL): 1175 /* FALLTHROUGH */ 1176 case (MAN_BLOCK): 1177 /* FALLTHROUGH */ 1178 case (MAN_ELEM): 1179 if (mans[n->tok] != NULL) 1180 (*mans[n->tok])(n, rec); 1181 break; 1182 default: 1183 break; 1184 } 1185 1186 pman_node(n->child, rec); 1187 pman_node(n->next, rec); 1188 } 1189 1190 /* 1191 * pman_parse_name -- 1192 * Parses the NAME section and puts the complete content in the name_desc 1193 * variable. 1194 */ 1195 static void 1196 pman_parse_name(const struct man_node *n, mandb_rec *rec) 1197 { 1198 if (n == NULL) 1199 return; 1200 1201 if (n->type == MAN_TEXT) { 1202 char *tmp = parse_escape(n->string); 1203 concat(&rec->name_desc, tmp); 1204 free(tmp); 1205 } 1206 1207 if (n->child) 1208 pman_parse_name(n->child, rec); 1209 1210 if(n->next) 1211 pman_parse_name(n->next, rec); 1212 } 1213 1214 /* 1215 * A stub function to be able to parse the macros like .B embedded inside 1216 * a section. 1217 */ 1218 static void 1219 pman_block(const struct man_node *n, mandb_rec *rec) 1220 { 1221 } 1222 1223 /* 1224 * pman_sh -- 1225 * This function does one of the two things: 1226 * 1. If the present section is NAME, then it will: 1227 * (a) Extract the name of the page (in case of multiple comma separated 1228 * names, it will pick up the first one). 1229 * (b) Build a space spearated list of all the symlinks/hardlinks to 1230 * this page and store in the buffer 'links'. These are extracted from 1231 * the comma separated list of names in the NAME section as well. 1232 * (c) Move on to the one line description section, which is after the list 1233 * of names in the NAME section. 1234 * 2. Otherwise, it will check the section name and call the man_parse_section 1235 * function, passing the enum corresponding that section. 1236 */ 1237 static void 1238 pman_sh(const struct man_node *n, mandb_rec *rec) 1239 { 1240 static const struct { 1241 enum man_sec section; 1242 const char *header; 1243 } mapping[] = { 1244 { MANSEC_DESCRIPTION, "DESCRIPTION" }, 1245 { MANSEC_SYNOPSIS, "SYNOPSIS" }, 1246 { MANSEC_LIBRARY, "LIBRARY" }, 1247 { MANSEC_ERRORS, "ERRORS" }, 1248 { MANSEC_FILES, "FILES" }, 1249 { MANSEC_RETURN_VALUES, "RETURN VALUE" }, 1250 { MANSEC_RETURN_VALUES, "RETURN VALUES" }, 1251 { MANSEC_EXIT_STATUS, "EXIT STATUS" }, 1252 { MANSEC_EXAMPLES, "EXAMPLES" }, 1253 { MANSEC_EXAMPLES, "EXAMPLE" }, 1254 { MANSEC_STANDARDS, "STANDARDS" }, 1255 { MANSEC_HISTORY, "HISTORY" }, 1256 { MANSEC_BUGS, "BUGS" }, 1257 { MANSEC_AUTHORS, "AUTHORS" }, 1258 { MANSEC_COPYRIGHT, "COPYRIGHT" }, 1259 }; 1260 const struct man_node *head; 1261 char *name_desc; 1262 int sz; 1263 size_t i; 1264 1265 if ((head = n->parent->head) == NULL || (head = head->child) == NULL || 1266 head->type != MAN_TEXT) 1267 return; 1268 1269 /* 1270 * Check if this section should be extracted and 1271 * where it should be stored. Handled the trival cases first. 1272 */ 1273 for (i = 0; i < sizeof(mapping) / sizeof(mapping[0]); ++i) { 1274 if (strcmp(head->string, mapping[i].header) == 0) { 1275 man_parse_section(mapping[i].section, n, rec); 1276 return; 1277 } 1278 } 1279 1280 if (strcmp(head->string, "NAME") == 0) { 1281 /* 1282 * We are in the NAME section. 1283 * pman_parse_name will put the complete content in name_desc. 1284 */ 1285 pman_parse_name(n, rec); 1286 1287 name_desc = rec->name_desc; 1288 if (name_desc == NULL) 1289 return; 1290 1291 /* Remove any leading spaces. */ 1292 while (name_desc[0] == ' ') 1293 name_desc++; 1294 1295 /* If the line begins with a "\&", avoid those */ 1296 if (name_desc[0] == '\\' && name_desc[1] == '&') 1297 name_desc += 2; 1298 1299 /* Now name_desc should be left with a comma-space 1300 * separated list of names and the one line description 1301 * of the page: 1302 * "a, b, c \- sample description" 1303 * Take out the first name, before the first comma 1304 * (or space) and store it in rec->name. 1305 * If the page has aliases then they should be 1306 * in the form of a comma separated list. 1307 * Keep looping while there is a comma in name_desc, 1308 * extract the alias name and store in rec->links. 1309 * When there are no more commas left, break out. 1310 */ 1311 int has_alias = 0; // Any more aliases left? 1312 while (*name_desc) { 1313 /* Remove any leading spaces or hyphens. */ 1314 if (name_desc[0] == ' ' || name_desc[0] =='-') { 1315 name_desc++; 1316 continue; 1317 } 1318 sz = strcspn(name_desc, ", "); 1319 1320 /* Extract the first term and store it in rec->name. */ 1321 if (rec->name == NULL) { 1322 if (name_desc[sz] == ',') 1323 has_alias = 1; 1324 name_desc[sz] = 0; 1325 rec->name = emalloc(sz + 1); 1326 memcpy(rec->name, name_desc, sz + 1); 1327 name_desc += sz + 1; 1328 continue; 1329 } 1330 1331 /* 1332 * Once rec->name is set, rest of the names 1333 * are to be treated as links or aliases. 1334 */ 1335 if (rec->name && has_alias) { 1336 if (name_desc[sz] != ',') { 1337 /* No more commas left --> 1338 * no more aliases to take out 1339 */ 1340 has_alias = 0; 1341 } 1342 name_desc[sz] = 0; 1343 concat2(&rec->links, name_desc, sz); 1344 name_desc += sz + 1; 1345 continue; 1346 } 1347 break; 1348 } 1349 1350 /* Parse any escape sequences that might be there */ 1351 char *temp = parse_escape(name_desc); 1352 free(rec->name_desc); 1353 rec->name_desc = temp; 1354 temp = parse_escape(rec->name); 1355 free(rec->name); 1356 rec->name = temp; 1357 return; 1358 } 1359 1360 /* The RETURN VALUE section might be specified in multiple ways */ 1361 if (strcmp(head->string, "RETURN") == 0 && 1362 head->next != NULL && head->next->type == MAN_TEXT && 1363 (strcmp(head->next->string, "VALUE") == 0 || 1364 strcmp(head->next->string, "VALUES") == 0)) { 1365 man_parse_section(MANSEC_RETURN_VALUES, n, rec); 1366 return; 1367 } 1368 1369 /* 1370 * EXIT STATUS section can also be specified all on one line or on two 1371 * separate lines. 1372 */ 1373 if (strcmp(head->string, "EXIT") == 0 && 1374 head->next != NULL && head->next->type == MAN_TEXT && 1375 strcmp(head->next->string, "STATUS") == 0) { 1376 man_parse_section(MANSEC_EXIT_STATUS, n, rec); 1377 return; 1378 } 1379 1380 /* Store the rest of the content in desc. */ 1381 man_parse_section(MANSEC_NONE, n, rec); 1382 } 1383 1384 /* 1385 * pman_parse_node -- 1386 * Generic function to iterate through a node. Usually called from 1387 * man_parse_section to parse a particular section of the man page. 1388 */ 1389 static void 1390 pman_parse_node(const struct man_node *n, secbuff *s) 1391 { 1392 if (n == NULL) 1393 return; 1394 1395 if (n->type == MAN_TEXT) 1396 append(s, n->string); 1397 1398 pman_parse_node(n->child, s); 1399 pman_parse_node(n->next, s); 1400 } 1401 1402 /* 1403 * man_parse_section -- 1404 * Takes two parameters: 1405 * sec: Tells which section we are present in 1406 * n: Is the present node of the AST. 1407 * Depending on the section, we call pman_parse_node to parse that section and 1408 * concatenate the content from that section into the buffer for that section. 1409 */ 1410 static void 1411 man_parse_section(enum man_sec sec, const struct man_node *n, mandb_rec *rec) 1412 { 1413 /* 1414 * If the user sepecified the 'l' flag then just parse 1415 * the NAME section, ignore the rest. 1416 */ 1417 if (mflags.limit) 1418 return; 1419 1420 switch (sec) { 1421 case MANSEC_LIBRARY: 1422 pman_parse_node(n, &rec->lib); 1423 break; 1424 case MANSEC_RETURN_VALUES: 1425 pman_parse_node(n, &rec->return_vals); 1426 break; 1427 case MANSEC_ENVIRONMENT: 1428 pman_parse_node(n, &rec->env); 1429 break; 1430 case MANSEC_FILES: 1431 pman_parse_node(n, &rec->files); 1432 break; 1433 case MANSEC_EXIT_STATUS: 1434 pman_parse_node(n, &rec->exit_status); 1435 break; 1436 case MANSEC_DIAGNOSTICS: 1437 pman_parse_node(n, &rec->diagnostics); 1438 break; 1439 case MANSEC_ERRORS: 1440 pman_parse_node(n, &rec->errors); 1441 break; 1442 case MANSEC_NAME: 1443 case MANSEC_SYNOPSIS: 1444 case MANSEC_EXAMPLES: 1445 case MANSEC_STANDARDS: 1446 case MANSEC_HISTORY: 1447 case MANSEC_BUGS: 1448 case MANSEC_AUTHORS: 1449 case MANSEC_COPYRIGHT: 1450 break; 1451 default: 1452 pman_parse_node(n, &rec->desc); 1453 break; 1454 } 1455 1456 } 1457 1458 /* 1459 * insert_into_db -- 1460 * Inserts the parsed data of the man page in the Sqlite databse. 1461 * If any of the values is NULL, then we cleanup and return -1 indicating 1462 * an error. 1463 * Otherwise, store the data in the database and return 0. 1464 */ 1465 static int 1466 insert_into_db(sqlite3 *db, mandb_rec *rec) 1467 { 1468 int rc = 0; 1469 int idx = -1; 1470 const char *sqlstr = NULL; 1471 sqlite3_stmt *stmt = NULL; 1472 char *ln = NULL; 1473 char *errmsg = NULL; 1474 long int mandb_rowid; 1475 1476 /* 1477 * At the very minimum we want to make sure that we store 1478 * the following data: 1479 * Name, one line description, and the MD5 hash 1480 */ 1481 if (rec->name == NULL || rec->name_desc == NULL || 1482 rec->md5_hash == NULL) { 1483 cleanup(rec); 1484 return -1; 1485 } 1486 1487 /* Write null byte at the end of all the sec_buffs */ 1488 rec->desc.data[rec->desc.offset] = 0; 1489 rec->lib.data[rec->lib.offset] = 0; 1490 rec->env.data[rec->env.offset] = 0; 1491 rec->return_vals.data[rec->return_vals.offset] = 0; 1492 rec->exit_status.data[rec->exit_status.offset] = 0; 1493 rec->files.data[rec->files.offset] = 0; 1494 rec->diagnostics.data[rec->diagnostics.offset] = 0; 1495 rec->errors.data[rec->errors.offset] = 0; 1496 1497 /* 1498 * In case of a mdoc page: (sorry, no better place to put this code) 1499 * parse the comma separated list of names of man pages, 1500 * the first name will be stored in the mandb table, rest will be 1501 * treated as links and put in the mandb_links table. 1502 */ 1503 if (rec->page_type == MDOC) { 1504 char *tmp; 1505 rec->links = estrdup(rec->name); 1506 free(rec->name); 1507 int sz = strcspn(rec->links, " \0"); 1508 rec->name = emalloc(sz + 1); 1509 memcpy(rec->name, rec->links, sz); 1510 if(rec->name[sz - 1] == ',') 1511 rec->name[sz - 1] = 0; 1512 else 1513 rec->name[sz] = 0; 1514 while (rec->links[sz] == ' ') 1515 ++sz; 1516 tmp = estrdup(rec->links + sz); 1517 free(rec->links); 1518 rec->links = tmp; 1519 } 1520 1521 /*------------------------ Populate the mandb table---------------------------*/ 1522 sqlstr = "INSERT INTO mandb VALUES (:section, :name, :name_desc, :desc," 1523 " :lib, :return_vals, :env, :files, :exit_status," 1524 " :diagnostics, :errors, :md5_hash, :machine)"; 1525 1526 rc = sqlite3_prepare_v2(db, sqlstr, -1, &stmt, NULL); 1527 if (rc != SQLITE_OK) 1528 goto Out; 1529 1530 idx = sqlite3_bind_parameter_index(stmt, ":name"); 1531 rc = sqlite3_bind_text(stmt, idx, rec->name, -1, NULL); 1532 if (rc != SQLITE_OK) { 1533 sqlite3_finalize(stmt); 1534 goto Out; 1535 } 1536 1537 idx = sqlite3_bind_parameter_index(stmt, ":section"); 1538 rc = sqlite3_bind_text(stmt, idx, rec->section, -1, NULL); 1539 if (rc != SQLITE_OK) { 1540 sqlite3_finalize(stmt); 1541 goto Out; 1542 } 1543 1544 idx = sqlite3_bind_parameter_index(stmt, ":name_desc"); 1545 rc = sqlite3_bind_text(stmt, idx, rec->name_desc, -1, NULL); 1546 if (rc != SQLITE_OK) { 1547 sqlite3_finalize(stmt); 1548 goto Out; 1549 } 1550 1551 idx = sqlite3_bind_parameter_index(stmt, ":desc"); 1552 rc = sqlite3_bind_text(stmt, idx, rec->desc.data, 1553 rec->desc.offset + 1, NULL); 1554 if (rc != SQLITE_OK) { 1555 sqlite3_finalize(stmt); 1556 goto Out; 1557 } 1558 1559 idx = sqlite3_bind_parameter_index(stmt, ":lib"); 1560 rc = sqlite3_bind_text(stmt, idx, rec->lib.data, rec->lib.offset + 1, NULL); 1561 if (rc != SQLITE_OK) { 1562 sqlite3_finalize(stmt); 1563 goto Out; 1564 } 1565 1566 idx = sqlite3_bind_parameter_index(stmt, ":return_vals"); 1567 rc = sqlite3_bind_text(stmt, idx, rec->return_vals.data, 1568 rec->return_vals.offset + 1, NULL); 1569 if (rc != SQLITE_OK) { 1570 sqlite3_finalize(stmt); 1571 goto Out; 1572 } 1573 1574 idx = sqlite3_bind_parameter_index(stmt, ":env"); 1575 rc = sqlite3_bind_text(stmt, idx, rec->env.data, rec->env.offset + 1, NULL); 1576 if (rc != SQLITE_OK) { 1577 sqlite3_finalize(stmt); 1578 goto Out; 1579 } 1580 1581 idx = sqlite3_bind_parameter_index(stmt, ":files"); 1582 rc = sqlite3_bind_text(stmt, idx, rec->files.data, 1583 rec->files.offset + 1, NULL); 1584 if (rc != SQLITE_OK) { 1585 sqlite3_finalize(stmt); 1586 goto Out; 1587 } 1588 1589 idx = sqlite3_bind_parameter_index(stmt, ":exit_status"); 1590 rc = sqlite3_bind_text(stmt, idx, rec->exit_status.data, 1591 rec->exit_status.offset + 1, NULL); 1592 if (rc != SQLITE_OK) { 1593 sqlite3_finalize(stmt); 1594 goto Out; 1595 } 1596 1597 idx = sqlite3_bind_parameter_index(stmt, ":diagnostics"); 1598 rc = sqlite3_bind_text(stmt, idx, rec->diagnostics.data, 1599 rec->diagnostics.offset + 1, NULL); 1600 if (rc != SQLITE_OK) { 1601 sqlite3_finalize(stmt); 1602 goto Out; 1603 } 1604 1605 idx = sqlite3_bind_parameter_index(stmt, ":errors"); 1606 rc = sqlite3_bind_text(stmt, idx, rec->errors.data, 1607 rec->errors.offset + 1, NULL); 1608 if (rc != SQLITE_OK) { 1609 sqlite3_finalize(stmt); 1610 goto Out; 1611 } 1612 1613 idx = sqlite3_bind_parameter_index(stmt, ":md5_hash"); 1614 rc = sqlite3_bind_text(stmt, idx, rec->md5_hash, -1, NULL); 1615 if (rc != SQLITE_OK) { 1616 sqlite3_finalize(stmt); 1617 goto Out; 1618 } 1619 1620 idx = sqlite3_bind_parameter_index(stmt, ":machine"); 1621 if (rec->machine) 1622 rc = sqlite3_bind_text(stmt, idx, rec->machine, -1, NULL); 1623 else 1624 rc = sqlite3_bind_null(stmt, idx); 1625 if (rc != SQLITE_OK) { 1626 sqlite3_finalize(stmt); 1627 goto Out; 1628 } 1629 1630 rc = sqlite3_step(stmt); 1631 if (rc != SQLITE_DONE) { 1632 sqlite3_finalize(stmt); 1633 goto Out; 1634 } 1635 1636 sqlite3_finalize(stmt); 1637 1638 /* Get the row id of the last inserted row */ 1639 mandb_rowid = sqlite3_last_insert_rowid(db); 1640 1641 /*------------------------Populate the mandb_meta table-----------------------*/ 1642 sqlstr = "INSERT INTO mandb_meta VALUES (:device, :inode, :mtime," 1643 " :file, :md5_hash, :id)"; 1644 rc = sqlite3_prepare_v2(db, sqlstr, -1, &stmt, NULL); 1645 if (rc != SQLITE_OK) 1646 goto Out; 1647 1648 idx = sqlite3_bind_parameter_index(stmt, ":device"); 1649 rc = sqlite3_bind_int64(stmt, idx, rec->device); 1650 if (rc != SQLITE_OK) { 1651 sqlite3_finalize(stmt); 1652 goto Out; 1653 } 1654 1655 idx = sqlite3_bind_parameter_index(stmt, ":inode"); 1656 rc = sqlite3_bind_int64(stmt, idx, rec->inode); 1657 if (rc != SQLITE_OK) { 1658 sqlite3_finalize(stmt); 1659 goto Out; 1660 } 1661 1662 idx = sqlite3_bind_parameter_index(stmt, ":mtime"); 1663 rc = sqlite3_bind_int64(stmt, idx, rec->mtime); 1664 if (rc != SQLITE_OK) { 1665 sqlite3_finalize(stmt); 1666 goto Out; 1667 } 1668 1669 idx = sqlite3_bind_parameter_index(stmt, ":file"); 1670 rc = sqlite3_bind_text(stmt, idx, rec->file_path, -1, NULL); 1671 if (rc != SQLITE_OK) { 1672 sqlite3_finalize(stmt); 1673 goto Out; 1674 } 1675 1676 idx = sqlite3_bind_parameter_index(stmt, ":md5_hash"); 1677 rc = sqlite3_bind_text(stmt, idx, rec->md5_hash, -1, NULL); 1678 if (rc != SQLITE_OK) { 1679 sqlite3_finalize(stmt); 1680 goto Out; 1681 } 1682 1683 idx = sqlite3_bind_parameter_index(stmt, ":id"); 1684 rc = sqlite3_bind_int64(stmt, idx, mandb_rowid); 1685 if (rc != SQLITE_OK) { 1686 sqlite3_finalize(stmt); 1687 goto Out; 1688 } 1689 1690 rc = sqlite3_step(stmt); 1691 sqlite3_finalize(stmt); 1692 if (rc == SQLITE_CONSTRAINT) { 1693 /* The *most* probable reason for reaching here is that 1694 * the UNIQUE contraint on the file column of the mandb_meta 1695 * table was violated. 1696 * This can happen when a file was updated/modified. 1697 * To fix this we need to do two things: 1698 * 1. Delete the row for the older version of this file 1699 * from mandb table. 1700 * 2. Run an UPDATE query to update the row for this file 1701 * in the mandb_meta table. 1702 */ 1703 warnx("Trying to update index for %s", rec->file_path); 1704 char *sql = sqlite3_mprintf("DELETE FROM mandb " 1705 "WHERE rowid = (SELECT id" 1706 " FROM mandb_meta" 1707 " WHERE file = %Q)", 1708 rec->file_path); 1709 sqlite3_exec(db, sql, NULL, NULL, &errmsg); 1710 sqlite3_free(sql); 1711 if (errmsg != NULL) { 1712 if (mflags.verbosity) 1713 warnx("%s", errmsg); 1714 free(errmsg); 1715 } 1716 sqlstr = "UPDATE mandb_meta SET device = :device," 1717 " inode = :inode, mtime = :mtime, id = :id," 1718 " md5_hash = :md5 WHERE file = :file"; 1719 rc = sqlite3_prepare_v2(db, sqlstr, -1, &stmt, NULL); 1720 if (rc != SQLITE_OK) { 1721 if (mflags.verbosity) 1722 warnx("Update failed with error: %s", 1723 sqlite3_errmsg(db)); 1724 close_db(db); 1725 cleanup(rec); 1726 errx(EXIT_FAILURE, 1727 "Consider running makemandb with -f option"); 1728 } 1729 1730 idx = sqlite3_bind_parameter_index(stmt, ":device"); 1731 sqlite3_bind_int64(stmt, idx, rec->device); 1732 idx = sqlite3_bind_parameter_index(stmt, ":inode"); 1733 sqlite3_bind_int64(stmt, idx, rec->inode); 1734 idx = sqlite3_bind_parameter_index(stmt, ":mtime"); 1735 sqlite3_bind_int64(stmt, idx, rec->mtime); 1736 idx = sqlite3_bind_parameter_index(stmt, ":id"); 1737 sqlite3_bind_int64(stmt, idx, mandb_rowid); 1738 idx = sqlite3_bind_parameter_index(stmt, ":md5"); 1739 sqlite3_bind_text(stmt, idx, rec->md5_hash, -1, NULL); 1740 idx = sqlite3_bind_parameter_index(stmt, ":file"); 1741 sqlite3_bind_text(stmt, idx, rec->file_path, -1, NULL); 1742 rc = sqlite3_step(stmt); 1743 sqlite3_finalize(stmt); 1744 1745 if (rc != SQLITE_DONE) { 1746 if (mflags.verbosity) 1747 warnx("%s", sqlite3_errmsg(db)); 1748 close_db(db); 1749 cleanup(rec); 1750 errx(EXIT_FAILURE, 1751 "Consider running makemandb with -f option"); 1752 } 1753 } else if (rc != SQLITE_DONE) { 1754 /* Otherwise make this error fatal */ 1755 warnx("Failed at %s\n%s", rec->file_path, sqlite3_errmsg(db)); 1756 cleanup(rec); 1757 close_db(db); 1758 exit(EXIT_FAILURE); 1759 } 1760 1761 /*------------------------ Populate the mandb_links table---------------------*/ 1762 char *str = NULL; 1763 char *links; 1764 if (rec->links && strlen(rec->links)) { 1765 links = rec->links; 1766 for(ln = strtok(links, " "); ln; ln = strtok(NULL, " ")) { 1767 if (ln[0] == ',') 1768 ln++; 1769 if(ln[strlen(ln) - 1] == ',') 1770 ln[strlen(ln) - 1] = 0; 1771 1772 str = sqlite3_mprintf("INSERT INTO mandb_links" 1773 " VALUES (%Q, %Q, %Q, %Q, %Q)", 1774 ln, rec->name, rec->section, 1775 rec->machine, rec->md5_hash); 1776 sqlite3_exec(db, str, NULL, NULL, &errmsg); 1777 sqlite3_free(str); 1778 if (errmsg != NULL) { 1779 warnx("%s", errmsg); 1780 cleanup(rec); 1781 free(errmsg); 1782 return -1; 1783 } 1784 } 1785 } 1786 1787 cleanup(rec); 1788 return 0; 1789 1790 Out: 1791 if (mflags.verbosity) 1792 warnx("%s", sqlite3_errmsg(db)); 1793 cleanup(rec); 1794 return -1; 1795 } 1796 1797 /* 1798 * check_md5-- 1799 * Generates the md5 hash of the file and checks if it already doesn't exist 1800 * in the table (passed as the 3rd parameter). 1801 * This function is being used to avoid hardlinks. 1802 * On successful completion it will also set the value of the fourth parameter 1803 * to the md5 hash of the file (computed previously). It is the responsibility 1804 * of the caller to free this buffer. 1805 * Return values: 1806 * -1: If an error occurs somewhere and sets the md5 return buffer to NULL. 1807 * 0: If the md5 hash does not exist in the table. 1808 * 1: If the hash exists in the database. 1809 */ 1810 static int 1811 check_md5(const char *file, sqlite3 *db, const char *table, char **md5sum, 1812 void *buf, size_t buflen) 1813 { 1814 int rc = 0; 1815 int idx = -1; 1816 char *sqlstr = NULL; 1817 sqlite3_stmt *stmt = NULL; 1818 1819 assert(file != NULL); 1820 *md5sum = MD5Data(buf, buflen, NULL); 1821 if (*md5sum == NULL) { 1822 if (mflags.verbosity) 1823 warn("md5 failed: %s", file); 1824 return -1; 1825 } 1826 1827 easprintf(&sqlstr, "SELECT * FROM %s WHERE md5_hash = :md5_hash", 1828 table); 1829 rc = sqlite3_prepare_v2(db, sqlstr, -1, &stmt, NULL); 1830 if (rc != SQLITE_OK) { 1831 free(sqlstr); 1832 free(*md5sum); 1833 *md5sum = NULL; 1834 return -1; 1835 } 1836 1837 idx = sqlite3_bind_parameter_index(stmt, ":md5_hash"); 1838 rc = sqlite3_bind_text(stmt, idx, *md5sum, -1, NULL); 1839 if (rc != SQLITE_OK) { 1840 if (mflags.verbosity) 1841 warnx("%s", sqlite3_errmsg(db)); 1842 sqlite3_finalize(stmt); 1843 free(sqlstr); 1844 free(*md5sum); 1845 *md5sum = NULL; 1846 return -1; 1847 } 1848 1849 if (sqlite3_step(stmt) == SQLITE_ROW) { 1850 sqlite3_finalize(stmt); 1851 free(sqlstr); 1852 return 0; 1853 } 1854 1855 sqlite3_finalize(stmt); 1856 free(sqlstr); 1857 return 1; 1858 } 1859 1860 /* Optimize the index for faster search */ 1861 static void 1862 optimize(sqlite3 *db) 1863 { 1864 const char *sqlstr; 1865 char *errmsg = NULL; 1866 1867 if (mflags.verbosity == 2) 1868 printf("Optimizing the database index\n"); 1869 sqlstr = "INSERT INTO mandb(mandb) VALUES (\'optimize\');" 1870 "VACUUM"; 1871 sqlite3_exec(db, sqlstr, NULL, NULL, &errmsg); 1872 if (errmsg != NULL) { 1873 if (mflags.verbosity) 1874 warnx("%s", errmsg); 1875 free(errmsg); 1876 return; 1877 } 1878 } 1879 1880 /* 1881 * cleanup -- 1882 * cleans up the global buffers 1883 */ 1884 static void 1885 cleanup(mandb_rec *rec) 1886 { 1887 rec->desc.offset = 0; 1888 rec->lib.offset = 0; 1889 rec->return_vals.offset = 0; 1890 rec->env.offset = 0; 1891 rec->exit_status.offset = 0; 1892 rec->diagnostics.offset = 0; 1893 rec->errors.offset = 0; 1894 rec->files.offset = 0; 1895 1896 free(rec->machine); 1897 rec->machine = NULL; 1898 1899 free(rec->links); 1900 rec->links = NULL; 1901 1902 free(rec->file_path); 1903 rec->file_path = NULL; 1904 1905 free(rec->name); 1906 rec->name = NULL; 1907 1908 free(rec->name_desc); 1909 rec->name_desc = NULL; 1910 1911 free(rec->md5_hash); 1912 rec->md5_hash = NULL; 1913 } 1914 1915 /* 1916 * init_secbuffs-- 1917 * Sets the value of buflen for all the sec_buff field of rec. And then 1918 * allocate memory to each sec_buff member of rec. 1919 */ 1920 static void 1921 init_secbuffs(mandb_rec *rec) 1922 { 1923 /* 1924 * Some sec_buff might need more memory, for example desc, 1925 * which stores the data of the DESCRIPTION section, 1926 * while some might need very small amount of memory. 1927 * Therefore explicitly setting the value of buflen field for 1928 * each sec_buff. 1929 */ 1930 rec->desc.buflen = 10 * BUFLEN; 1931 rec->desc.data = emalloc(rec->desc.buflen); 1932 rec->desc.offset = 0; 1933 1934 rec->lib.buflen = BUFLEN / 2; 1935 rec->lib.data = emalloc(rec->lib.buflen); 1936 rec->lib.offset = 0; 1937 1938 rec->return_vals.buflen = BUFLEN; 1939 rec->return_vals.data = emalloc(rec->return_vals.buflen); 1940 rec->return_vals.offset = 0; 1941 1942 rec->exit_status.buflen = BUFLEN; 1943 rec->exit_status.data = emalloc(rec->exit_status.buflen); 1944 rec->exit_status.offset = 0; 1945 1946 rec->env.buflen = BUFLEN; 1947 rec->env.data = emalloc(rec->env.buflen); 1948 rec->env.offset = 0; 1949 1950 rec->files.buflen = BUFLEN; 1951 rec->files.data = emalloc(rec->files.buflen); 1952 rec->files.offset = 0; 1953 1954 rec->diagnostics.buflen = BUFLEN; 1955 rec->diagnostics.data = emalloc(rec->diagnostics.buflen); 1956 rec->diagnostics.offset = 0; 1957 1958 rec->errors.buflen = BUFLEN; 1959 rec->errors.data = emalloc(rec->errors.buflen); 1960 rec->errors.offset = 0; 1961 } 1962 1963 /* 1964 * free_secbuffs-- 1965 * This function should be called at the end, when all the pages have been 1966 * parsed. 1967 * It frees the memory allocated to sec_buffs by init_secbuffs in the starting. 1968 */ 1969 static void 1970 free_secbuffs(mandb_rec *rec) 1971 { 1972 free(rec->desc.data); 1973 free(rec->lib.data); 1974 free(rec->return_vals.data); 1975 free(rec->exit_status.data); 1976 free(rec->env.data); 1977 free(rec->files.data); 1978 free(rec->diagnostics.data); 1979 free(rec->errors.data); 1980 } 1981 1982 static void 1983 replace_hyph(char *str) 1984 { 1985 char *iter = str; 1986 while ((iter = strchr(iter, ASCII_HYPH)) != NULL) 1987 *iter = '-'; 1988 } 1989 1990 static char * 1991 parse_escape(const char *str) 1992 { 1993 const char *backslash, *last_backslash; 1994 char *result, *iter; 1995 size_t len; 1996 1997 assert(str); 1998 1999 last_backslash = str; 2000 backslash = strchr(str, '\\'); 2001 if (backslash == NULL) { 2002 result = estrdup(str); 2003 replace_hyph(result); 2004 return result; 2005 } 2006 2007 result = emalloc(strlen(str) + 1); 2008 iter = result; 2009 2010 do { 2011 len = backslash - last_backslash; 2012 memcpy(iter, last_backslash, len); 2013 iter += len; 2014 if (backslash[1] == '-' || backslash[1] == ' ') { 2015 *iter++ = backslash[1]; 2016 last_backslash = backslash + 2; 2017 backslash = strchr(backslash + 2, '\\'); 2018 } else { 2019 ++backslash; 2020 mandoc_escape(&backslash, NULL, NULL); 2021 last_backslash = backslash; 2022 if (backslash == NULL) 2023 break; 2024 backslash = strchr(last_backslash, '\\'); 2025 } 2026 } while (backslash != NULL); 2027 if (last_backslash != NULL) 2028 strcpy(iter, last_backslash); 2029 2030 replace_hyph(result); 2031 return result; 2032 } 2033 2034 /* 2035 * append-- 2036 * Concatenates a space and src at the end of sbuff->data (much like concat in 2037 * apropos-utils.c). 2038 * Rather than reallocating space for writing data, it uses the value of the 2039 * offset field of sec_buff to write new data at the free space left in the 2040 * buffer. 2041 * In case the size of the data to be appended exceeds the number of bytes left 2042 * in the buffer, it reallocates buflen number of bytes and then continues. 2043 * Value of offset field should be adjusted as new data is written. 2044 * 2045 * NOTE: This function does not write the null byte at the end of the buffers, 2046 * write a null byte at the position pointed to by offset before inserting data 2047 * in the db. 2048 */ 2049 static void 2050 append(secbuff *sbuff, const char *src) 2051 { 2052 short flag = 0; 2053 size_t srclen, newlen; 2054 char *temp; 2055 2056 assert(src != NULL); 2057 temp = parse_escape(src); 2058 srclen = strlen(temp); 2059 2060 if (sbuff->data == NULL) { 2061 sbuff->data = emalloc(sbuff->buflen); 2062 sbuff->offset = 0; 2063 } 2064 2065 newlen = sbuff->offset + srclen + 2; 2066 if (newlen >= sbuff->buflen) { 2067 while (sbuff->buflen < newlen) 2068 sbuff->buflen += sbuff->buflen; 2069 sbuff->data = erealloc(sbuff->data, sbuff->buflen); 2070 flag = 1; 2071 } 2072 2073 /* Append a space at the end of the buffer. */ 2074 if (sbuff->offset || flag) 2075 sbuff->data[sbuff->offset++] = ' '; 2076 /* Now, copy src at the end of the buffer. */ 2077 memcpy(sbuff->data + sbuff->offset, temp, srclen); 2078 sbuff->offset += srclen; 2079 free(temp); 2080 } 2081 2082 static void 2083 usage(void) 2084 { 2085 fprintf(stderr, "Usage: %s [-floQqv] [-C path]\n", getprogname()); 2086 exit(1); 2087 } 2088
Indexes created Tue Sep 30 07:10:03 GMT 2025