/* $Id: mandocdb.c,v 1.97 2014/04/19 02:55:44 schwarze Exp $ */ /* * Copyright (c) 2011, 2012 Kristaps Dzonsons * Copyright (c) 2011, 2012, 2013, 2014 Ingo Schwarze * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "mdoc.h" #include "man.h" #include "mandoc.h" #include "mandoc_aux.h" #include "manpath.h" #include "mansearch.h" extern int mansearch_keymax; extern const char *const mansearch_keynames[]; #define SQL_EXEC(_v) \ if (SQLITE_OK != sqlite3_exec(db, (_v), NULL, NULL, NULL)) \ say("", "%s: %s", (_v), sqlite3_errmsg(db)) #define SQL_BIND_TEXT(_s, _i, _v) \ if (SQLITE_OK != sqlite3_bind_text \ ((_s), (_i)++, (_v), -1, SQLITE_STATIC)) \ say(mlink->file, "%s", sqlite3_errmsg(db)) #define SQL_BIND_INT(_s, _i, _v) \ if (SQLITE_OK != sqlite3_bind_int \ ((_s), (_i)++, (_v))) \ say(mlink->file, "%s", sqlite3_errmsg(db)) #define SQL_BIND_INT64(_s, _i, _v) \ if (SQLITE_OK != sqlite3_bind_int64 \ ((_s), (_i)++, (_v))) \ say(mlink->file, "%s", sqlite3_errmsg(db)) #define SQL_STEP(_s) \ if (SQLITE_DONE != sqlite3_step((_s))) \ say(mlink->file, "%s", sqlite3_errmsg(db)) enum op { OP_DEFAULT = 0, /* new dbs from dir list or default config */ OP_CONFFILE, /* new databases from custom config file */ OP_UPDATE, /* delete/add entries in existing database */ OP_DELETE, /* delete entries from existing database */ OP_TEST /* change no databases, report potential problems */ }; enum form { FORM_NONE, /* format is unknown */ FORM_SRC, /* format is -man or -mdoc */ FORM_CAT /* format is cat */ }; struct str { char *rendered; /* key in UTF-8 or ASCII form */ const struct mpage *mpage; /* if set, the owning parse */ uint64_t mask; /* bitmask in sequence */ char key[]; /* may contain escape sequences */ }; struct inodev { ino_t st_ino; dev_t st_dev; }; struct mpage { struct inodev inodev; /* used for hashing routine */ int64_t pageid; /* pageid in mpages SQL table */ enum form form; /* format from file content */ char *sec; /* section from file content */ char *arch; /* architecture from file content */ char *title; /* title from file content */ char *desc; /* description from file content */ struct mlink *mlinks; /* singly linked list */ }; struct mlink { char file[PATH_MAX]; /* filename rel. to manpath */ enum form dform; /* format from directory */ enum form fform; /* format from file name suffix */ char *dsec; /* section from directory */ char *arch; /* architecture from directory */ char *name; /* name from file name (not empty) */ char *fsec; /* section from file name suffix */ struct mlink *next; /* singly linked list */ struct mpage *mpage; /* parent */ int gzip; /* filename has a .gz suffix */ }; enum stmt { STMT_DELETE_PAGE = 0, /* delete mpage */ STMT_INSERT_PAGE, /* insert mpage */ STMT_INSERT_LINK, /* insert mlink */ STMT_INSERT_NAME, /* insert name */ STMT_INSERT_KEY, /* insert parsed key */ STMT__MAX }; typedef int (*mdoc_fp)(struct mpage *, const struct mdoc_node *); struct mdoc_handler { mdoc_fp fp; /* optional handler */ uint64_t mask; /* set unless handler returns 0 */ }; static void dbclose(int); static void dbadd(struct mpage *, struct mchars *); static void dbadd_mlink(const struct mlink *mlink); static int dbopen(int); static void dbprune(void); static void filescan(const char *); static void *hash_alloc(size_t, void *); static void hash_free(void *, size_t, void *); static void *hash_halloc(size_t, void *); static void mlink_add(struct mlink *, const struct stat *); static void mlink_check(struct mpage *, struct mlink *); static void mlink_free(struct mlink *); static void mlinks_undupe(struct mpage *); static void mpages_free(void); static void mpages_merge(struct mchars *, struct mparse *); static void names_check(void); static void parse_cat(struct mpage *, int); static void parse_man(struct mpage *, const struct man_node *); static void parse_mdoc(struct mpage *, const struct mdoc_node *); static int parse_mdoc_body(struct mpage *, const struct mdoc_node *); static int parse_mdoc_head(struct mpage *, const struct mdoc_node *); static int parse_mdoc_Fd(struct mpage *, const struct mdoc_node *); static int parse_mdoc_Fn(struct mpage *, const struct mdoc_node *); static int parse_mdoc_Nd(struct mpage *, const struct mdoc_node *); static int parse_mdoc_Nm(struct mpage *, const struct mdoc_node *); static int parse_mdoc_Sh(struct mpage *, const struct mdoc_node *); static int parse_mdoc_Xr(struct mpage *, const struct mdoc_node *); static void putkey(const struct mpage *, char *, uint64_t); static void putkeys(const struct mpage *, const char *, size_t, uint64_t); static void putmdockey(const struct mpage *, const struct mdoc_node *, uint64_t); static void render_key(struct mchars *, struct str *); static void say(const char *, const char *, ...); static int set_basedir(const char *); static int treescan(void); static size_t utf8(unsigned int, char [7]); static char tempfilename[32]; static char *progname; static int nodb; /* no database changes */ static int mparse_options; /* abort the parse early */ static int use_all; /* use all found files */ static int debug; /* print what we're doing */ static int warnings; /* warn about crap */ static int write_utf8; /* write UTF-8 output; else ASCII */ static int exitcode; /* to be returned by main */ static enum op op; /* operational mode */ static char basedir[PATH_MAX]; /* current base directory */ static struct ohash mpages; /* table of distinct manual pages */ static struct ohash mlinks; /* table of directory entries */ static struct ohash names; /* table of all names */ static struct ohash strings; /* table of all strings */ static sqlite3 *db = NULL; /* current database */ static sqlite3_stmt *stmts[STMT__MAX]; /* current statements */ static uint64_t name_mask; static const struct mdoc_handler mdocs[MDOC_MAX] = { { NULL, 0 }, /* Ap */ { NULL, 0 }, /* Dd */ { NULL, 0 }, /* Dt */ { NULL, 0 }, /* Os */ { parse_mdoc_Sh, TYPE_Sh }, /* Sh */ { parse_mdoc_head, TYPE_Ss }, /* Ss */ { NULL, 0 }, /* Pp */ { NULL, 0 }, /* D1 */ { NULL, 0 }, /* Dl */ { NULL, 0 }, /* Bd */ { NULL, 0 }, /* Ed */ { NULL, 0 }, /* Bl */ { NULL, 0 }, /* El */ { NULL, 0 }, /* It */ { NULL, 0 }, /* Ad */ { NULL, TYPE_An }, /* An */ { NULL, TYPE_Ar }, /* Ar */ { NULL, TYPE_Cd }, /* Cd */ { NULL, TYPE_Cm }, /* Cm */ { NULL, TYPE_Dv }, /* Dv */ { NULL, TYPE_Er }, /* Er */ { NULL, TYPE_Ev }, /* Ev */ { NULL, 0 }, /* Ex */ { NULL, TYPE_Fa }, /* Fa */ { parse_mdoc_Fd, 0 }, /* Fd */ { NULL, TYPE_Fl }, /* Fl */ { parse_mdoc_Fn, 0 }, /* Fn */ { NULL, TYPE_Ft }, /* Ft */ { NULL, TYPE_Ic }, /* Ic */ { NULL, TYPE_In }, /* In */ { NULL, TYPE_Li }, /* Li */ { parse_mdoc_Nd, 0 }, /* Nd */ { parse_mdoc_Nm, 0 }, /* Nm */ { NULL, 0 }, /* Op */ { NULL, 0 }, /* Ot */ { NULL, TYPE_Pa }, /* Pa */ { NULL, 0 }, /* Rv */ { NULL, TYPE_St }, /* St */ { NULL, TYPE_Va }, /* Va */ { parse_mdoc_body, TYPE_Va }, /* Vt */ { parse_mdoc_Xr, 0 }, /* Xr */ { NULL, 0 }, /* %A */ { NULL, 0 }, /* %B */ { NULL, 0 }, /* %D */ { NULL, 0 }, /* %I */ { NULL, 0 }, /* %J */ { NULL, 0 }, /* %N */ { NULL, 0 }, /* %O */ { NULL, 0 }, /* %P */ { NULL, 0 }, /* %R */ { NULL, 0 }, /* %T */ { NULL, 0 }, /* %V */ { NULL, 0 }, /* Ac */ { NULL, 0 }, /* Ao */ { NULL, 0 }, /* Aq */ { NULL, TYPE_At }, /* At */ { NULL, 0 }, /* Bc */ { NULL, 0 }, /* Bf */ { NULL, 0 }, /* Bo */ { NULL, 0 }, /* Bq */ { NULL, TYPE_Bsx }, /* Bsx */ { NULL, TYPE_Bx }, /* Bx */ { NULL, 0 }, /* Db */ { NULL, 0 }, /* Dc */ { NULL, 0 }, /* Do */ { NULL, 0 }, /* Dq */ { NULL, 0 }, /* Ec */ { NULL, 0 }, /* Ef */ { NULL, TYPE_Em }, /* Em */ { NULL, 0 }, /* Eo */ { NULL, TYPE_Fx }, /* Fx */ { NULL, TYPE_Ms }, /* Ms */ { NULL, 0 }, /* No */ { NULL, 0 }, /* Ns */ { NULL, TYPE_Nx }, /* Nx */ { NULL, TYPE_Ox }, /* Ox */ { NULL, 0 }, /* Pc */ { NULL, 0 }, /* Pf */ { NULL, 0 }, /* Po */ { NULL, 0 }, /* Pq */ { NULL, 0 }, /* Qc */ { NULL, 0 }, /* Ql */ { NULL, 0 }, /* Qo */ { NULL, 0 }, /* Qq */ { NULL, 0 }, /* Re */ { NULL, 0 }, /* Rs */ { NULL, 0 }, /* Sc */ { NULL, 0 }, /* So */ { NULL, 0 }, /* Sq */ { NULL, 0 }, /* Sm */ { NULL, 0 }, /* Sx */ { NULL, TYPE_Sy }, /* Sy */ { NULL, TYPE_Tn }, /* Tn */ { NULL, 0 }, /* Ux */ { NULL, 0 }, /* Xc */ { NULL, 0 }, /* Xo */ { parse_mdoc_head, 0 }, /* Fo */ { NULL, 0 }, /* Fc */ { NULL, 0 }, /* Oo */ { NULL, 0 }, /* Oc */ { NULL, 0 }, /* Bk */ { NULL, 0 }, /* Ek */ { NULL, 0 }, /* Bt */ { NULL, 0 }, /* Hf */ { NULL, 0 }, /* Fr */ { NULL, 0 }, /* Ud */ { NULL, TYPE_Lb }, /* Lb */ { NULL, 0 }, /* Lp */ { NULL, TYPE_Lk }, /* Lk */ { NULL, TYPE_Mt }, /* Mt */ { NULL, 0 }, /* Brq */ { NULL, 0 }, /* Bro */ { NULL, 0 }, /* Brc */ { NULL, 0 }, /* %C */ { NULL, 0 }, /* Es */ { NULL, 0 }, /* En */ { NULL, TYPE_Dx }, /* Dx */ { NULL, 0 }, /* %Q */ { NULL, 0 }, /* br */ { NULL, 0 }, /* sp */ { NULL, 0 }, /* %U */ { NULL, 0 }, /* Ta */ }; int mandocdb(int argc, char *argv[]) { int ch, i; size_t j, sz; const char *path_arg; struct mchars *mc; struct manpaths dirs; struct mparse *mp; struct ohash_info mpages_info, mlinks_info; memset(stmts, 0, STMT__MAX * sizeof(sqlite3_stmt *)); memset(&dirs, 0, sizeof(struct manpaths)); mpages_info.alloc = mlinks_info.alloc = hash_alloc; mpages_info.halloc = mlinks_info.halloc = hash_halloc; mpages_info.hfree = mlinks_info.hfree = hash_free; mpages_info.key_offset = offsetof(struct mpage, inodev); mlinks_info.key_offset = offsetof(struct mlink, file); progname = strrchr(argv[0], '/'); if (progname == NULL) progname = argv[0]; else ++progname; /* * We accept a few different invocations. * The CHECKOP macro makes sure that invocation styles don't * clobber each other. */ #define CHECKOP(_op, _ch) do \ if (OP_DEFAULT != (_op)) { \ fprintf(stderr, "-%c: Conflicting option\n", (_ch)); \ goto usage; \ } while (/*CONSTCOND*/0) path_arg = NULL; op = OP_DEFAULT; while (-1 != (ch = getopt(argc, argv, "aC:Dd:npQT:tu:v"))) switch (ch) { case ('a'): use_all = 1; break; case ('C'): CHECKOP(op, ch); path_arg = optarg; op = OP_CONFFILE; break; case ('D'): debug++; break; case ('d'): CHECKOP(op, ch); path_arg = optarg; op = OP_UPDATE; break; case ('n'): nodb = 1; break; case ('p'): warnings = 1; break; case ('Q'): mparse_options |= MPARSE_QUICK; break; case ('T'): if (strcmp(optarg, "utf8")) { fprintf(stderr, "-T%s: Unsupported " "output format\n", optarg); goto usage; } write_utf8 = 1; break; case ('t'): CHECKOP(op, ch); dup2(STDOUT_FILENO, STDERR_FILENO); op = OP_TEST; nodb = warnings = 1; break; case ('u'): CHECKOP(op, ch); path_arg = optarg; op = OP_DELETE; break; case ('v'): /* Compatibility with espie@'s makewhatis. */ break; default: goto usage; } argc -= optind; argv += optind; if (OP_CONFFILE == op && argc > 0) { fprintf(stderr, "-C: Too many arguments\n"); goto usage; } exitcode = (int)MANDOCLEVEL_OK; mp = mparse_alloc(mparse_options, MANDOCLEVEL_FATAL, NULL, NULL); mc = mchars_alloc(); ohash_init(&mpages, 6, &mpages_info); ohash_init(&mlinks, 6, &mlinks_info); if (OP_UPDATE == op || OP_DELETE == op || OP_TEST == op) { /* * All of these deal with a specific directory. * Jump into that directory first. */ if (0 == set_basedir(path_arg)) goto out; if (dbopen(1)) { /* * The existing database is usable. Process * all files specified on the command-line. */ use_all = 1; for (i = 0; i < argc; i++) filescan(argv[i]); if (OP_TEST != op) dbprune(); } else { /* * Database missing or corrupt. * Recreate from scratch. */ exitcode = (int)MANDOCLEVEL_OK; op = OP_DEFAULT; if (0 == treescan()) goto out; if (0 == dbopen(0)) goto out; } if (OP_DELETE != op) mpages_merge(mc, mp); dbclose(OP_DEFAULT == op ? 0 : 1); } else { /* * If we have arguments, use them as our manpaths. * If we don't, grok from manpath(1) or however else * manpath_parse() wants to do it. */ if (argc > 0) { dirs.paths = mandoc_calloc (argc, sizeof(char *)); dirs.sz = (size_t)argc; for (i = 0; i < argc; i++) dirs.paths[i] = mandoc_strdup(argv[i]); } else manpath_parse(&dirs, path_arg, NULL, NULL); if (0 == dirs.sz) { exitcode = (int)MANDOCLEVEL_BADARG; say("", "Empty manpath"); } /* * First scan the tree rooted at a base directory, then * build a new database and finally move it into place. * Ignore zero-length directories and strip trailing * slashes. */ for (j = 0; j < dirs.sz; j++) { sz = strlen(dirs.paths[j]); if (sz && '/' == dirs.paths[j][sz - 1]) dirs.paths[j][--sz] = '\0'; if (0 == sz) continue; if (j) { ohash_init(&mpages, 6, &mpages_info); ohash_init(&mlinks, 6, &mlinks_info); } if (0 == set_basedir(dirs.paths[j])) goto out; if (0 == treescan()) goto out; if (0 == set_basedir(dirs.paths[j])) goto out; if (0 == dbopen(0)) goto out; mpages_merge(mc, mp); if (warnings && ! (MPARSE_QUICK & mparse_options)) names_check(); dbclose(0); if (j + 1 < dirs.sz) { mpages_free(); ohash_delete(&mpages); ohash_delete(&mlinks); } } } out: set_basedir(NULL); manpath_free(&dirs); mchars_free(mc); mparse_free(mp); mpages_free(); ohash_delete(&mpages); ohash_delete(&mlinks); return(exitcode); usage: fprintf(stderr, "usage: %s [-aDnpQ] [-C file] [-Tutf8]\n" " %s [-aDnpQ] [-Tutf8] dir ...\n" " %s [-DnpQ] [-Tutf8] -d dir [file ...]\n" " %s [-Dnp] -u dir [file ...]\n" " %s [-Q] -t file ...\n", progname, progname, progname, progname, progname); return((int)MANDOCLEVEL_BADARG); } /* * Scan a directory tree rooted at "basedir" for manpages. * We use fts(), scanning directory parts along the way for clues to our * section and architecture. * * If use_all has been specified, grok all files. * If not, sanitise paths to the following: * * [./]man*[/]/.
* or * [./]cat
[/]/.0 * * TODO: accomodate for multi-language directories. */ static int treescan(void) { char buf[PATH_MAX]; FTS *f; FTSENT *ff; struct mlink *mlink; int dform, gzip; char *dsec, *arch, *fsec, *cp; const char *path; const char *argv[2]; argv[0] = "."; argv[1] = (char *)NULL; f = fts_open((char * const *)argv, FTS_PHYSICAL | FTS_NOCHDIR, NULL); if (NULL == f) { exitcode = (int)MANDOCLEVEL_SYSERR; say("", "&fts_open"); return(0); } dsec = arch = NULL; dform = FORM_NONE; while (NULL != (ff = fts_read(f))) { path = ff->fts_path + 2; switch (ff->fts_info) { /* * Symbolic links require various sanity checks, * then get handled just like regular files. */ case (FTS_SL): if (NULL == realpath(path, buf)) { if (warnings) say(path, "&realpath"); continue; } if (strstr(buf, basedir) != buf) { if (warnings) say("", "%s: outside base directory", buf); continue; } /* Use logical inode to avoid mpages dupe. */ if (-1 == stat(path, ff->fts_statp)) { if (warnings) say(path, "&stat"); continue; } /* FALLTHROUGH */ /* * If we're a regular file, add an mlink by using the * stored directory data and handling the filename. */ case (FTS_F): if (0 == strcmp(path, MANDOC_DB)) continue; if ( ! use_all && ff->fts_level < 2) { if (warnings) say(path, "Extraneous file"); continue; } gzip = 0; fsec = NULL; while (NULL == fsec) { fsec = strrchr(ff->fts_name, '.'); if (NULL == fsec || strcmp(fsec+1, "gz")) break; gzip = 1; *fsec = '\0'; fsec = NULL; } if (NULL == fsec) { if ( ! use_all) { if (warnings) say(path, "No filename suffix"); continue; } } else if (0 == strcmp(++fsec, "html")) { if (warnings) say(path, "Skip html"); continue; } else if (0 == strcmp(fsec, "ps")) { if (warnings) say(path, "Skip ps"); continue; } else if (0 == strcmp(fsec, "pdf")) { if (warnings) say(path, "Skip pdf"); continue; } else if ( ! use_all && ((FORM_SRC == dform && strcmp(fsec, dsec)) || (FORM_CAT == dform && strcmp(fsec, "0")))) { if (warnings) say(path, "Wrong filename suffix"); continue; } else fsec[-1] = '\0'; mlink = mandoc_calloc(1, sizeof(struct mlink)); strlcpy(mlink->file, path, sizeof(mlink->file)); mlink->dform = dform; mlink->dsec = dsec; mlink->arch = arch; mlink->name = ff->fts_name; mlink->fsec = fsec; mlink->gzip = gzip; mlink_add(mlink, ff->fts_statp); continue; case (FTS_D): /* FALLTHROUGH */ case (FTS_DP): break; default: if (warnings) say(path, "Not a regular file"); continue; } switch (ff->fts_level) { case (0): /* Ignore the root directory. */ break; case (1): /* * This might contain manX/ or catX/. * Try to infer this from the name. * If we're not in use_all, enforce it. */ cp = ff->fts_name; if (FTS_DP == ff->fts_info) break; if (0 == strncmp(cp, "man", 3)) { dform = FORM_SRC; dsec = cp + 3; } else if (0 == strncmp(cp, "cat", 3)) { dform = FORM_CAT; dsec = cp + 3; } else { dform = FORM_NONE; dsec = NULL; } if (NULL != dsec || use_all) break; if (warnings) say(path, "Unknown directory part"); fts_set(f, ff, FTS_SKIP); break; case (2): /* * Possibly our architecture. * If we're descending, keep tabs on it. */ if (FTS_DP != ff->fts_info && NULL != dsec) arch = ff->fts_name; else arch = NULL; break; default: if (FTS_DP == ff->fts_info || use_all) break; if (warnings) say(path, "Extraneous directory part"); fts_set(f, ff, FTS_SKIP); break; } } fts_close(f); return(1); } /* * Add a file to the mlinks table. * Do not verify that it's a "valid" looking manpage (we'll do that * later). * * Try to infer the manual section, architecture, and page name from the * path, assuming it looks like * * [./]man*[/]/.
* or * [./]cat
[/]/.0 * * See treescan() for the fts(3) version of this. */ static void filescan(const char *file) { char buf[PATH_MAX]; struct stat st; struct mlink *mlink; char *p, *start; assert(use_all); if (0 == strncmp(file, "./", 2)) file += 2; /* * We have to do lstat(2) before realpath(3) loses * the information whether this is a symbolic link. * We need to know that because for symbolic links, * we want to use the orginal file name, while for * regular files, we want to use the real path. */ if (-1 == lstat(file, &st)) { exitcode = (int)MANDOCLEVEL_BADARG; say(file, "&lstat"); return; } else if (0 == ((S_IFREG | S_IFLNK) & st.st_mode)) { exitcode = (int)MANDOCLEVEL_BADARG; say(file, "Not a regular file"); return; } /* * We have to resolve the file name to the real path * in any case for the base directory check. */ if (NULL == realpath(file, buf)) { exitcode = (int)MANDOCLEVEL_BADARG; say(file, "&realpath"); return; } if (strstr(buf, basedir) == buf) start = buf + strlen(basedir) + 1; else if (OP_TEST == op) start = buf; else { exitcode = (int)MANDOCLEVEL_BADARG; say("", "%s: outside base directory", buf); return; } /* * Now we are sure the file is inside our tree. * If it is a symbolic link, ignore the real path * and use the original name. * This implies passing stuff like "cat1/../man1/foo.1" * on the command line won't work. So don't do that. * Note the stat(2) can still fail if the link target * doesn't exist. */ if (S_IFLNK & st.st_mode) { if (-1 == stat(buf, &st)) { exitcode = (int)MANDOCLEVEL_BADARG; say(file, "&stat"); return; } strlcpy(buf, file, sizeof(buf)); start = strstr(buf, basedir) == buf ? buf + strlen(basedir) + 1 : buf; } mlink = mandoc_calloc(1, sizeof(struct mlink)); strlcpy(mlink->file, start, sizeof(mlink->file)); /* * First try to guess our directory structure. * If we find a separator, try to look for man* or cat*. * If we find one of these and what's underneath is a directory, * assume it's an architecture. */ if (NULL != (p = strchr(start, '/'))) { *p++ = '\0'; if (0 == strncmp(start, "man", 3)) { mlink->dform = FORM_SRC; mlink->dsec = start + 3; } else if (0 == strncmp(start, "cat", 3)) { mlink->dform = FORM_CAT; mlink->dsec = start + 3; } start = p; if (NULL != mlink->dsec && NULL != (p = strchr(start, '/'))) { *p++ = '\0'; mlink->arch = start; start = p; } } /* * Now check the file suffix. * Suffix of `.0' indicates a catpage, `.1-9' is a manpage. */ p = strrchr(start, '\0'); while (p-- > start && '/' != *p && '.' != *p) /* Loop. */ ; if ('.' == *p) { *p++ = '\0'; mlink->fsec = p; } /* * Now try to parse the name. * Use the filename portion of the path. */ mlink->name = start; if (NULL != (p = strrchr(start, '/'))) { mlink->name = p + 1; *p = '\0'; } mlink_add(mlink, &st); } static void mlink_add(struct mlink *mlink, const struct stat *st) { struct inodev inodev; struct mpage *mpage; unsigned int slot; assert(NULL != mlink->file); mlink->dsec = mandoc_strdup(mlink->dsec ? mlink->dsec : ""); mlink->arch = mandoc_strdup(mlink->arch ? mlink->arch : ""); mlink->name = mandoc_strdup(mlink->name ? mlink->name : ""); mlink->fsec = mandoc_strdup(mlink->fsec ? mlink->fsec : ""); if ('0' == *mlink->fsec) { free(mlink->fsec); mlink->fsec = mandoc_strdup(mlink->dsec); mlink->fform = FORM_CAT; } else if ('1' <= *mlink->fsec && '9' >= *mlink->fsec) mlink->fform = FORM_SRC; else mlink->fform = FORM_NONE; slot = ohash_qlookup(&mlinks, mlink->file); assert(NULL == ohash_find(&mlinks, slot)); ohash_insert(&mlinks, slot, mlink); inodev.st_ino = st->st_ino; inodev.st_dev = st->st_dev; slot = ohash_lookup_memory(&mpages, (char *)&inodev, sizeof(struct inodev), inodev.st_ino); mpage = ohash_find(&mpages, slot); if (NULL == mpage) { mpage = mandoc_calloc(1, sizeof(struct mpage)); mpage->inodev.st_ino = inodev.st_ino; mpage->inodev.st_dev = inodev.st_dev; ohash_insert(&mpages, slot, mpage); } else mlink->next = mpage->mlinks; mpage->mlinks = mlink; mlink->mpage = mpage; } static void mlink_free(struct mlink *mlink) { free(mlink->dsec); free(mlink->arch); free(mlink->name); free(mlink->fsec); free(mlink); } static void mpages_free(void) { struct mpage *mpage; struct mlink *mlink; unsigned int slot; mpage = ohash_first(&mpages, &slot); while (NULL != mpage) { while (NULL != (mlink = mpage->mlinks)) { mpage->mlinks = mlink->next; mlink_free(mlink); } free(mpage->sec); free(mpage->arch); free(mpage->title); free(mpage->desc); free(mpage); mpage = ohash_next(&mpages, &slot); } } /* * For each mlink to the mpage, check whether the path looks like * it is formatted, and if it does, check whether a source manual * exists by the same name, ignoring the suffix. * If both conditions hold, drop the mlink. */ static void mlinks_undupe(struct mpage *mpage) { char buf[PATH_MAX]; struct mlink **prev; struct mlink *mlink; char *bufp; mpage->form = FORM_CAT; prev = &mpage->mlinks; while (NULL != (mlink = *prev)) { if (FORM_CAT != mlink->dform) { mpage->form = FORM_NONE; goto nextlink; } if (strlcpy(buf, mlink->file, PATH_MAX) >= PATH_MAX) { if (warnings) say(mlink->file, "Filename too long"); goto nextlink; } bufp = strstr(buf, "cat"); assert(NULL != bufp); memcpy(bufp, "man", 3); if (NULL != (bufp = strrchr(buf, '.'))) *++bufp = '\0'; strlcat(buf, mlink->dsec, PATH_MAX); if (NULL == ohash_find(&mlinks, ohash_qlookup(&mlinks, buf))) goto nextlink; if (warnings) say(mlink->file, "Man source exists: %s", buf); if (use_all) goto nextlink; *prev = mlink->next; mlink_free(mlink); continue; nextlink: prev = &(*prev)->next; } } static void mlink_check(struct mpage *mpage, struct mlink *mlink) { struct str *str; unsigned int slot; /* * Check whether the manual section given in a file * agrees with the directory where the file is located. * Some manuals have suffixes like (3p) on their * section number either inside the file or in the * directory name, some are linked into more than one * section, like encrypt(1) = makekey(8). */ if (FORM_SRC == mpage->form && strcasecmp(mpage->sec, mlink->dsec)) say(mlink->file, "Section \"%s\" manual in %s directory", mpage->sec, mlink->dsec); /* * Manual page directories exist for each kernel * architecture as returned by machine(1). * However, many manuals only depend on the * application architecture as returned by arch(1). * For example, some (2/ARM) manuals are shared * across the "armish" and "zaurus" kernel * architectures. * A few manuals are even shared across completely * different architectures, for example fdformat(1) * on amd64, i386, sparc, and sparc64. */ if (strcasecmp(mpage->arch, mlink->arch)) say(mlink->file, "Architecture \"%s\" manual in " "\"%s\" directory", mpage->arch, mlink->arch); /* * XXX * parse_cat() doesn't set NAME_TITLE yet. */ if (FORM_CAT == mpage->form) return; /* * Check whether this mlink * appears as a name in the NAME section. */ slot = ohash_qlookup(&names, mlink->name); str = ohash_find(&names, slot); assert(NULL != str); if ( ! (NAME_TITLE & str->mask)) say(mlink->file, "Name missing in NAME section"); } /* * Run through the files in the global vector "mpages" * and add them to the database specified in "basedir". * * This handles the parsing scheme itself, using the cues of directory * and filename to determine whether the file is parsable or not. */ static void mpages_merge(struct mchars *mc, struct mparse *mp) { char any[] = "any"; struct ohash_info str_info; int fd[2]; struct mpage *mpage, *mpage_dest; struct mlink *mlink, *mlink_dest; struct mdoc *mdoc; struct man *man; char *sodest; char *cp; pid_t child_pid; int status; unsigned int pslot; enum mandoclevel lvl; str_info.alloc = hash_alloc; str_info.halloc = hash_halloc; str_info.hfree = hash_free; str_info.key_offset = offsetof(struct str, key); if (0 == nodb) SQL_EXEC("BEGIN TRANSACTION"); mpage = ohash_first(&mpages, &pslot); while (NULL != mpage) { mlinks_undupe(mpage); if (NULL == mpage->mlinks) { mpage = ohash_next(&mpages, &pslot); continue; } name_mask = NAME_MASK; ohash_init(&names, 4, &str_info); ohash_init(&strings, 6, &str_info); mparse_reset(mp); mdoc = NULL; man = NULL; sodest = NULL; child_pid = 0; fd[0] = -1; fd[1] = -1; if (mpage->mlinks->gzip) { if (-1 == pipe(fd)) { exitcode = (int)MANDOCLEVEL_SYSERR; say(mpage->mlinks->file, "&pipe gunzip"); goto nextpage; } switch (child_pid = fork()) { case (-1): exitcode = (int)MANDOCLEVEL_SYSERR; say(mpage->mlinks->file, "&fork gunzip"); child_pid = 0; close(fd[1]); close(fd[0]); goto nextpage; case (0): close(fd[0]); if (-1 == dup2(fd[1], STDOUT_FILENO)) { say(mpage->mlinks->file, "&dup gunzip"); exit(1); } execlp("gunzip", "gunzip", "-c", mpage->mlinks->file, NULL); say(mpage->mlinks->file, "&exec gunzip"); exit(1); default: close(fd[1]); break; } } /* * Try interpreting the file as mdoc(7) or man(7) * source code, unless it is already known to be * formatted. Fall back to formatted mode. */ if (FORM_CAT != mpage->mlinks->dform || FORM_CAT != mpage->mlinks->fform) { lvl = mparse_readfd(mp, fd[0], mpage->mlinks->file); if (lvl < MANDOCLEVEL_FATAL) mparse_result(mp, &mdoc, &man, &sodest); } if (NULL != sodest) { mlink_dest = ohash_find(&mlinks, ohash_qlookup(&mlinks, sodest)); if (NULL != mlink_dest) { /* The .so target exists. */ mpage_dest = mlink_dest->mpage; mlink = mpage->mlinks; while (1) { mlink->mpage = mpage_dest; /* * If the target was already * processed, add the links * to the database now. * Otherwise, this will * happen when we come * to the target. */ if (mpage_dest->pageid) dbadd_mlink(mlink); if (NULL == mlink->next) break; mlink = mlink->next; } /* Move all links to the target. */ mlink->next = mlink_dest->next; mlink_dest->next = mpage->mlinks; mpage->mlinks = NULL; } goto nextpage; } else if (NULL != mdoc) { mpage->form = FORM_SRC; mpage->sec = mandoc_strdup(mdoc_meta(mdoc)->msec); mpage->arch = mdoc_meta(mdoc)->arch; mpage->arch = mandoc_strdup( NULL == mpage->arch ? "" : mpage->arch); mpage->title = mandoc_strdup(mdoc_meta(mdoc)->title); } else if (NULL != man) { mpage->form = FORM_SRC; mpage->sec = mandoc_strdup(man_meta(man)->msec); mpage->arch = mandoc_strdup(mpage->mlinks->arch); mpage->title = mandoc_strdup(man_meta(man)->title); } else { mpage->form = FORM_CAT; mpage->sec = mandoc_strdup(mpage->mlinks->dsec); mpage->arch = mandoc_strdup(mpage->mlinks->arch); mpage->title = mandoc_strdup(mpage->mlinks->name); } putkey(mpage, mpage->sec, TYPE_sec); putkey(mpage, '\0' == *mpage->arch ? any : mpage->arch, TYPE_arch); for (mlink = mpage->mlinks; mlink; mlink = mlink->next) { if ('\0' != *mlink->dsec) putkey(mpage, mlink->dsec, TYPE_sec); if ('\0' != *mlink->fsec) putkey(mpage, mlink->fsec, TYPE_sec); putkey(mpage, '\0' == *mlink->arch ? any : mlink->arch, TYPE_arch); putkey(mpage, mlink->name, NAME_FILE); } assert(NULL == mpage->desc); if (NULL != mdoc) { if (NULL != (cp = mdoc_meta(mdoc)->name)) putkey(mpage, cp, NAME_HEAD); parse_mdoc(mpage, mdoc_node(mdoc)); } else if (NULL != man) parse_man(mpage, man_node(man)); else parse_cat(mpage, fd[0]); if (NULL == mpage->desc) mpage->desc = mandoc_strdup(mpage->mlinks->name); if (warnings && !use_all) for (mlink = mpage->mlinks; mlink; mlink = mlink->next) mlink_check(mpage, mlink); dbadd(mpage, mc); nextpage: if (child_pid) { if (-1 == waitpid(child_pid, &status, 0)) { exitcode = (int)MANDOCLEVEL_SYSERR; say(mpage->mlinks->file, "&wait gunzip"); } else if (WIFSIGNALED(status)) { exitcode = (int)MANDOCLEVEL_SYSERR; say(mpage->mlinks->file, "gunzip died from signal %d", WTERMSIG(status)); } else if (WEXITSTATUS(status)) { exitcode = (int)MANDOCLEVEL_SYSERR; say(mpage->mlinks->file, "gunzip failed with code %d", WEXITSTATUS(status)); } } ohash_delete(&strings); ohash_delete(&names); mpage = ohash_next(&mpages, &pslot); } if (0 == nodb) SQL_EXEC("END TRANSACTION"); } static void names_check(void) { sqlite3_stmt *stmt; const char *name, *sec, *arch, *key; int irc; sqlite3_prepare_v2(db, "SELECT name, sec, arch, key FROM (" "SELECT name AS key, pageid FROM names " "WHERE bits & ? AND NOT EXISTS (" "SELECT pageid FROM mlinks " "WHERE mlinks.pageid == names.pageid " "AND mlinks.name == names.name" ")" ") JOIN (" "SELECT * FROM mlinks GROUP BY pageid" ") USING (pageid);", -1, &stmt, NULL); if (SQLITE_OK != sqlite3_bind_int64(stmt, 1, NAME_TITLE)) say("", "%s", sqlite3_errmsg(db)); while (SQLITE_ROW == (irc = sqlite3_step(stmt))) { name = sqlite3_column_text(stmt, 0); sec = sqlite3_column_text(stmt, 1); arch = sqlite3_column_text(stmt, 2); key = sqlite3_column_text(stmt, 3); say("", "%s(%s%s%s) lacks mlink \"%s\"", name, sec, '\0' == *arch ? "" : "/", '\0' == *arch ? "" : arch, key); } sqlite3_finalize(stmt); } static void parse_cat(struct mpage *mpage, int fd) { FILE *stream; char *line, *p, *title; size_t len, plen, titlesz; stream = (-1 == fd) ? fopen(mpage->mlinks->file, "r") : fdopen(fd, "r"); if (NULL == stream) { if (warnings) say(mpage->mlinks->file, "&fopen"); return; } /* Skip to first blank line. */ while (NULL != (line = fgetln(stream, &len))) if ('\n' == *line) break; /* * Assume the first line that is not indented * is the first section header. Skip to it. */ while (NULL != (line = fgetln(stream, &len))) if ('\n' != *line && ' ' != *line) break; /* * Read up until the next section into a buffer. * Strip the leading and trailing newline from each read line, * appending a trailing space. * Ignore empty (whitespace-only) lines. */ titlesz = 0; title = NULL; while (NULL != (line = fgetln(stream, &len))) { if (' ' != *line || '\n' != line[len - 1]) break; while (len > 0 && isspace((unsigned char)*line)) { line++; len--; } if (1 == len) continue; title = mandoc_realloc(title, titlesz + len); memcpy(title + titlesz, line, len); titlesz += len; title[titlesz - 1] = ' '; } /* * If no page content can be found, or the input line * is already the next section header, or there is no * trailing newline, reuse the page title as the page * description. */ if (NULL == title || '\0' == *title) { if (warnings) say(mpage->mlinks->file, "Cannot find NAME section"); fclose(stream); free(title); return; } title = mandoc_realloc(title, titlesz + 1); title[titlesz] = '\0'; /* * Skip to the first dash. * Use the remaining line as the description (no more than 70 * bytes). */ if (NULL != (p = strstr(title, "- "))) { for (p += 2; ' ' == *p || '\b' == *p; p++) /* Skip to next word. */ ; } else { if (warnings) say(mpage->mlinks->file, "No dash in title line"); p = title; } plen = strlen(p); /* Strip backspace-encoding from line. */ while (NULL != (line = memchr(p, '\b', plen))) { len = line - p; if (0 == len) { memmove(line, line + 1, plen--); continue; } memmove(line - 1, line + 1, plen - len); plen -= 2; } mpage->desc = mandoc_strdup(p); fclose(stream); free(title); } /* * Put a type/word pair into the word database for this particular file. */ static void putkey(const struct mpage *mpage, char *value, uint64_t type) { char *cp; assert(NULL != value); if (TYPE_arch == type) for (cp = value; *cp; cp++) if (isupper((unsigned char)*cp)) *cp = _tolower((unsigned char)*cp); putkeys(mpage, value, strlen(value), type); } /* * Grok all nodes at or below a certain mdoc node into putkey(). */ static void putmdockey(const struct mpage *mpage, const struct mdoc_node *n, uint64_t m) { for ( ; NULL != n; n = n->next) { if (NULL != n->child) putmdockey(mpage, n->child, m); if (MDOC_TEXT == n->type) putkey(mpage, n->string, m); } } static void parse_man(struct mpage *mpage, const struct man_node *n) { const struct man_node *head, *body; char *start, *title; char byte; size_t sz; if (NULL == n) return; /* * We're only searching for one thing: the first text child in * the BODY of a NAME section. Since we don't keep track of * sections in -man, run some hoops to find out whether we're in * the correct section or not. */ if (MAN_BODY == n->type && MAN_SH == n->tok) { body = n; assert(body->parent); if (NULL != (head = body->parent->head) && 1 == head->nchild && NULL != (head = (head->child)) && MAN_TEXT == head->type && 0 == strcmp(head->string, "NAME") && NULL != body->child) { /* * Suck the entire NAME section into memory. * Yes, we might run away. * But too many manuals have big, spread-out * NAME sections over many lines. */ title = NULL; man_deroff(&title, body); if (NULL == title) return; /* * Go through a special heuristic dance here. * Conventionally, one or more manual names are * comma-specified prior to a whitespace, then a * dash, then a description. Try to puzzle out * the name parts here. */ start = title; for ( ;; ) { sz = strcspn(start, " ,"); if ('\0' == start[sz]) break; byte = start[sz]; start[sz] = '\0'; /* * Assume a stray trailing comma in the * name list if a name begins with a dash. */ if ('-' == start[0] || ('\\' == start[0] && '-' == start[1])) break; putkey(mpage, start, NAME_TITLE); if (' ' == byte) { start += sz + 1; break; } assert(',' == byte); start += sz + 1; while (' ' == *start) start++; } if (start == title) { putkey(mpage, start, NAME_TITLE); free(title); return; } while (isspace((unsigned char)*start)) start++; if (0 == strncmp(start, "-", 1)) start += 1; else if (0 == strncmp(start, "\\-\\-", 4)) start += 4; else if (0 == strncmp(start, "\\-", 2)) start += 2; else if (0 == strncmp(start, "\\(en", 4)) start += 4; else if (0 == strncmp(start, "\\(em", 4)) start += 4; while (' ' == *start) start++; mpage->desc = mandoc_strdup(start); free(title); return; } } for (n = n->child; n; n = n->next) { if (NULL != mpage->desc) break; parse_man(mpage, n); } } static void parse_mdoc(struct mpage *mpage, const struct mdoc_node *n) { assert(NULL != n); for (n = n->child; NULL != n; n = n->next) { switch (n->type) { case (MDOC_ELEM): /* FALLTHROUGH */ case (MDOC_BLOCK): /* FALLTHROUGH */ case (MDOC_HEAD): /* FALLTHROUGH */ case (MDOC_BODY): /* FALLTHROUGH */ case (MDOC_TAIL): if (NULL != mdocs[n->tok].fp) if (0 == (*mdocs[n->tok].fp)(mpage, n)) break; if (mdocs[n->tok].mask) putmdockey(mpage, n->child, mdocs[n->tok].mask); break; default: assert(MDOC_ROOT != n->type); continue; } if (NULL != n->child) parse_mdoc(mpage, n); } } static int parse_mdoc_Fd(struct mpage *mpage, const struct mdoc_node *n) { const char *start, *end; size_t sz; if (SEC_SYNOPSIS != n->sec || NULL == (n = n->child) || MDOC_TEXT != n->type) return(0); /* * Only consider those `Fd' macro fields that begin with an * "inclusion" token (versus, e.g., #define). */ if (strcmp("#include", n->string)) return(0); if (NULL == (n = n->next) || MDOC_TEXT != n->type) return(0); /* * Strip away the enclosing angle brackets and make sure we're * not zero-length. */ start = n->string; if ('<' == *start || '"' == *start) start++; if (0 == (sz = strlen(start))) return(0); end = &start[(int)sz - 1]; if ('>' == *end || '"' == *end) end--; if (end > start) putkeys(mpage, start, end - start + 1, TYPE_In); return(0); } static int parse_mdoc_Fn(struct mpage *mpage, const struct mdoc_node *n) { char *cp; if (NULL == (n = n->child) || MDOC_TEXT != n->type) return(0); /* * Parse: .Fn "struct type *name" "char *arg". * First strip away pointer symbol. * Then store the function name, then type. * Finally, store the arguments. */ if (NULL == (cp = strrchr(n->string, ' '))) cp = n->string; while ('*' == *cp) cp++; putkey(mpage, cp, TYPE_Fn); if (n->string < cp) putkeys(mpage, n->string, cp - n->string, TYPE_Ft); for (n = n->next; NULL != n; n = n->next) if (MDOC_TEXT == n->type) putkey(mpage, n->string, TYPE_Fa); return(0); } static int parse_mdoc_Xr(struct mpage *mpage, const struct mdoc_node *n) { char *cp; if (NULL == (n = n->child)) return(0); if (NULL == n->next) { putkey(mpage, n->string, TYPE_Xr); return(0); } mandoc_asprintf(&cp, "%s(%s)", n->string, n->next->string); putkey(mpage, cp, TYPE_Xr); free(cp); return(0); } static int parse_mdoc_Nd(struct mpage *mpage, const struct mdoc_node *n) { if (MDOC_BODY == n->type) mdoc_deroff(&mpage->desc, n); return(0); } static int parse_mdoc_Nm(struct mpage *mpage, const struct mdoc_node *n) { if (SEC_NAME == n->sec) putmdockey(mpage, n->child, NAME_TITLE); else if (SEC_SYNOPSIS == n->sec && MDOC_HEAD == n->type) putmdockey(mpage, n->child, NAME_SYN); return(0); } static int parse_mdoc_Sh(struct mpage *mpage, const struct mdoc_node *n) { return(SEC_CUSTOM == n->sec && MDOC_HEAD == n->type); } static int parse_mdoc_head(struct mpage *mpage, const struct mdoc_node *n) { return(MDOC_HEAD == n->type); } static int parse_mdoc_body(struct mpage *mpage, const struct mdoc_node *n) { return(MDOC_BODY == n->type); } /* * Add a string to the hash table for the current manual. * Each string has a bitmask telling which macros it belongs to. * When we finish the manual, we'll dump the table. */ static void putkeys(const struct mpage *mpage, const char *cp, size_t sz, uint64_t v) { struct ohash *htab; struct str *s; const char *end; unsigned int slot; int i; if (0 == sz) return; if (TYPE_Nm & v) { htab = &names; v &= name_mask; name_mask &= ~NAME_FIRST; if (debug > 1) say(mpage->mlinks->file, "Adding name %*s", sz, cp); } else { htab = &strings; if (debug > 1) for (i = 0; i < mansearch_keymax; i++) if (1 << i & v) say(mpage->mlinks->file, "Adding key %s=%*s", mansearch_keynames[i], sz, cp); } end = cp + sz; slot = ohash_qlookupi(htab, cp, &end); s = ohash_find(htab, slot); if (NULL != s && mpage == s->mpage) { s->mask |= v; return; } else if (NULL == s) { s = mandoc_calloc(sizeof(struct str) + sz + 1, 1); memcpy(s->key, cp, sz); ohash_insert(htab, slot, s); } s->mpage = mpage; s->mask = v; } /* * Take a Unicode codepoint and produce its UTF-8 encoding. * This isn't the best way to do this, but it works. * The magic numbers are from the UTF-8 packaging. * They're not as scary as they seem: read the UTF-8 spec for details. */ static size_t utf8(unsigned int cp, char out[7]) { size_t rc; rc = 0; if (cp <= 0x0000007F) { rc = 1; out[0] = (char)cp; } else if (cp <= 0x000007FF) { rc = 2; out[0] = (cp >> 6 & 31) | 192; out[1] = (cp & 63) | 128; } else if (cp <= 0x0000FFFF) { rc = 3; out[0] = (cp >> 12 & 15) | 224; out[1] = (cp >> 6 & 63) | 128; out[2] = (cp & 63) | 128; } else if (cp <= 0x001FFFFF) { rc = 4; out[0] = (cp >> 18 & 7) | 240; out[1] = (cp >> 12 & 63) | 128; out[2] = (cp >> 6 & 63) | 128; out[3] = (cp & 63) | 128; } else if (cp <= 0x03FFFFFF) { rc = 5; out[0] = (cp >> 24 & 3) | 248; out[1] = (cp >> 18 & 63) | 128; out[2] = (cp >> 12 & 63) | 128; out[3] = (cp >> 6 & 63) | 128; out[4] = (cp & 63) | 128; } else if (cp <= 0x7FFFFFFF) { rc = 6; out[0] = (cp >> 30 & 1) | 252; out[1] = (cp >> 24 & 63) | 128; out[2] = (cp >> 18 & 63) | 128; out[3] = (cp >> 12 & 63) | 128; out[4] = (cp >> 6 & 63) | 128; out[5] = (cp & 63) | 128; } else return(0); out[rc] = '\0'; return(rc); } /* * Store the rendered version of a key, or alias the pointer * if the key contains no escape sequences. */ static void render_key(struct mchars *mc, struct str *key) { size_t sz, bsz, pos; char utfbuf[7], res[6]; char *buf; const char *seq, *cpp, *val; int len, u; enum mandoc_esc esc; assert(NULL == key->rendered); res[0] = '\\'; res[1] = '\t'; res[2] = ASCII_NBRSP; res[3] = ASCII_HYPH; res[4] = ASCII_BREAK; res[5] = '\0'; val = key->key; bsz = strlen(val); /* * Pre-check: if we have no stop-characters, then set the * pointer as ourselvse and get out of here. */ if (strcspn(val, res) == bsz) { key->rendered = key->key; return; } /* Pre-allocate by the length of the input */ buf = mandoc_malloc(++bsz); pos = 0; while ('\0' != *val) { /* * Halt on the first escape sequence. * This also halts on the end of string, in which case * we just copy, fallthrough, and exit the loop. */ if ((sz = strcspn(val, res)) > 0) { memcpy(&buf[pos], val, sz); pos += sz; val += sz; } switch (*val) { case (ASCII_HYPH): buf[pos++] = '-'; val++; continue; case ('\t'): /* FALLTHROUGH */ case (ASCII_NBRSP): buf[pos++] = ' '; val++; /* FALLTHROUGH */ case (ASCII_BREAK): continue; default: break; } if ('\\' != *val) break; /* Read past the slash. */ val++; /* * Parse the escape sequence and see if it's a * predefined character or special character. */ esc = mandoc_escape ((const char **)&val, &seq, &len); if (ESCAPE_ERROR == esc) break; if (ESCAPE_SPECIAL != esc) continue; /* * Render the special character * as either UTF-8 or ASCII. */ if (write_utf8) { if (0 == (u = mchars_spec2cp(mc, seq, len))) continue; cpp = utfbuf; if (0 == (sz = utf8(u, utfbuf))) continue; sz = strlen(cpp); } else { cpp = mchars_spec2str(mc, seq, len, &sz); if (NULL == cpp) continue; if (ASCII_NBRSP == *cpp) { cpp = " "; sz = 1; } } /* Copy the rendered glyph into the stream. */ bsz += sz; buf = mandoc_realloc(buf, bsz); memcpy(&buf[pos], cpp, sz); pos += sz; } buf[pos] = '\0'; key->rendered = buf; } static void dbadd_mlink(const struct mlink *mlink) { size_t i; i = 1; SQL_BIND_TEXT(stmts[STMT_INSERT_LINK], i, mlink->dsec); SQL_BIND_TEXT(stmts[STMT_INSERT_LINK], i, mlink->arch); SQL_BIND_TEXT(stmts[STMT_INSERT_LINK], i, mlink->name); SQL_BIND_INT64(stmts[STMT_INSERT_LINK], i, mlink->mpage->pageid); SQL_STEP(stmts[STMT_INSERT_LINK]); sqlite3_reset(stmts[STMT_INSERT_LINK]); } /* * Flush the current page's terms (and their bits) into the database. * Wrap the entire set of additions in a transaction to make sqlite be a * little faster. * Also, handle escape sequences at the last possible moment. */ static void dbadd(struct mpage *mpage, struct mchars *mc) { struct mlink *mlink; struct str *key; size_t i; unsigned int slot; mlink = mpage->mlinks; if (nodb) { while (NULL != mlink) { fputs(mlink->name, stdout); if (NULL == mlink->next || strcmp(mlink->dsec, mlink->next->dsec) || strcmp(mlink->fsec, mlink->next->fsec) || strcmp(mlink->arch, mlink->next->arch)) { putchar('('); if ('\0' == *mlink->dsec) fputs(mlink->fsec, stdout); else fputs(mlink->dsec, stdout); if ('\0' != *mlink->arch) printf("/%s", mlink->arch); putchar(')'); } mlink = mlink->next; if (NULL != mlink) fputs(", ", stdout); } printf(" - %s\n", mpage->desc); return; } if (debug) say(mlink->file, "Adding to database"); i = 1; SQL_BIND_TEXT(stmts[STMT_INSERT_PAGE], i, mpage->desc); SQL_BIND_INT(stmts[STMT_INSERT_PAGE], i, FORM_SRC == mpage->form); SQL_STEP(stmts[STMT_INSERT_PAGE]); mpage->pageid = sqlite3_last_insert_rowid(db); sqlite3_reset(stmts[STMT_INSERT_PAGE]); while (NULL != mlink) { dbadd_mlink(mlink); mlink = mlink->next; } mlink = mpage->mlinks; for (key = ohash_first(&names, &slot); NULL != key; key = ohash_next(&names, &slot)) { assert(key->mpage == mpage); if (NULL == key->rendered) render_key(mc, key); i = 1; SQL_BIND_INT64(stmts[STMT_INSERT_NAME], i, key->mask); SQL_BIND_TEXT(stmts[STMT_INSERT_NAME], i, key->rendered); SQL_BIND_INT64(stmts[STMT_INSERT_NAME], i, mpage->pageid); SQL_STEP(stmts[STMT_INSERT_NAME]); sqlite3_reset(stmts[STMT_INSERT_NAME]); if (key->rendered != key->key) free(key->rendered); free(key); } for (key = ohash_first(&strings, &slot); NULL != key; key = ohash_next(&strings, &slot)) { assert(key->mpage == mpage); if (NULL == key->rendered) render_key(mc, key); i = 1; SQL_BIND_INT64(stmts[STMT_INSERT_KEY], i, key->mask); SQL_BIND_TEXT(stmts[STMT_INSERT_KEY], i, key->rendered); SQL_BIND_INT64(stmts[STMT_INSERT_KEY], i, mpage->pageid); SQL_STEP(stmts[STMT_INSERT_KEY]); sqlite3_reset(stmts[STMT_INSERT_KEY]); if (key->rendered != key->key) free(key->rendered); free(key); } } static void dbprune(void) { struct mpage *mpage; struct mlink *mlink; size_t i; unsigned int slot; if (0 == nodb) SQL_EXEC("BEGIN TRANSACTION"); for (mpage = ohash_first(&mpages, &slot); NULL != mpage; mpage = ohash_next(&mpages, &slot)) { mlink = mpage->mlinks; if (debug) say(mlink->file, "Deleting from database"); if (nodb) continue; for ( ; NULL != mlink; mlink = mlink->next) { i = 1; SQL_BIND_TEXT(stmts[STMT_DELETE_PAGE], i, mlink->dsec); SQL_BIND_TEXT(stmts[STMT_DELETE_PAGE], i, mlink->arch); SQL_BIND_TEXT(stmts[STMT_DELETE_PAGE], i, mlink->name); SQL_STEP(stmts[STMT_DELETE_PAGE]); sqlite3_reset(stmts[STMT_DELETE_PAGE]); } } if (0 == nodb) SQL_EXEC("END TRANSACTION"); } /* * Close an existing database and its prepared statements. * If "real" is not set, rename the temporary file into the real one. */ static void dbclose(int real) { size_t i; int status; pid_t child; if (nodb) return; for (i = 0; i < STMT__MAX; i++) { sqlite3_finalize(stmts[i]); stmts[i] = NULL; } sqlite3_close(db); db = NULL; if (real) return; if ('\0' == *tempfilename) { if (-1 == rename(MANDOC_DB "~", MANDOC_DB)) { exitcode = (int)MANDOCLEVEL_SYSERR; say(MANDOC_DB, "&rename"); } return; } switch (child = fork()) { case (-1): exitcode = (int)MANDOCLEVEL_SYSERR; say("", "&fork cmp"); return; case (0): execlp("cmp", "cmp", "-s", tempfilename, MANDOC_DB, NULL); say("", "&exec cmp"); exit(0); default: break; } if (-1 == waitpid(child, &status, 0)) { exitcode = (int)MANDOCLEVEL_SYSERR; say("", "&wait cmp"); } else if (WIFSIGNALED(status)) { exitcode = (int)MANDOCLEVEL_SYSERR; say("", "cmp died from signal %d", WTERMSIG(status)); } else if (WEXITSTATUS(status)) { exitcode = (int)MANDOCLEVEL_SYSERR; say(MANDOC_DB, "Data changed, but cannot replace database"); } *strrchr(tempfilename, '/') = '\0'; switch (child = fork()) { case (-1): exitcode = (int)MANDOCLEVEL_SYSERR; say("", "&fork rm"); return; case (0): execlp("rm", "rm", "-rf", tempfilename, NULL); say("", "&exec rm"); exit((int)MANDOCLEVEL_SYSERR); default: break; } if (-1 == waitpid(child, &status, 0)) { exitcode = (int)MANDOCLEVEL_SYSERR; say("", "&wait rm"); } else if (WIFSIGNALED(status) || WEXITSTATUS(status)) { exitcode = (int)MANDOCLEVEL_SYSERR; say("", "%s: Cannot remove temporary directory", tempfilename); } } /* * This is straightforward stuff. * Open a database connection to a "temporary" database, then open a set * of prepared statements we'll use over and over again. * If "real" is set, we use the existing database; if not, we truncate a * temporary one. * Must be matched by dbclose(). */ static int dbopen(int real) { const char *sql; int rc, ofl; if (nodb) return(1); *tempfilename = '\0'; ofl = SQLITE_OPEN_READWRITE; if (real) { rc = sqlite3_open_v2(MANDOC_DB, &db, ofl, NULL); if (SQLITE_OK != rc) { exitcode = (int)MANDOCLEVEL_SYSERR; say(MANDOC_DB, "%s", sqlite3_errmsg(db)); return(0); } goto prepare_statements; } ofl |= SQLITE_OPEN_CREATE | SQLITE_OPEN_EXCLUSIVE; remove(MANDOC_DB "~"); rc = sqlite3_open_v2(MANDOC_DB "~", &db, ofl, NULL); if (SQLITE_OK == rc) goto create_tables; if (MPARSE_QUICK & mparse_options) { exitcode = (int)MANDOCLEVEL_SYSERR; say(MANDOC_DB "~", "%s", sqlite3_errmsg(db)); return(0); } if (strlcpy(tempfilename, "/tmp/mandocdb.XXXXXX", sizeof(tempfilename)) >= sizeof(tempfilename)) { exitcode = (int)MANDOCLEVEL_SYSERR; say("", "/tmp/mandocdb.XXXXXX: Filename too long"); return(0); } if (NULL == mkdtemp(tempfilename)) { exitcode = (int)MANDOCLEVEL_SYSERR; say("", "&%s", tempfilename); return(0); } if (strlcat(tempfilename, "/" MANDOC_DB, sizeof(tempfilename)) >= sizeof(tempfilename)) { exitcode = (int)MANDOCLEVEL_SYSERR; say("", "%s/" MANDOC_DB ": Filename too long", tempfilename); return(0); } rc = sqlite3_open_v2(tempfilename, &db, ofl, NULL); if (SQLITE_OK != rc) { exitcode = (int)MANDOCLEVEL_SYSERR; say("", "%s: %s", tempfilename, sqlite3_errmsg(db)); return(0); } create_tables: sql = "CREATE TABLE \"mpages\" (\n" " \"desc\" TEXT NOT NULL,\n" " \"form\" INTEGER NOT NULL,\n" " \"pageid\" INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL\n" ");\n" "\n" "CREATE TABLE \"mlinks\" (\n" " \"sec\" TEXT NOT NULL,\n" " \"arch\" TEXT NOT NULL,\n" " \"name\" TEXT NOT NULL,\n" " \"pageid\" INTEGER NOT NULL REFERENCES mpages(pageid) " "ON DELETE CASCADE\n" ");\n" "CREATE INDEX mlinks_pageid_idx ON mlinks (pageid);\n" "\n" "CREATE TABLE \"names\" (\n" " \"bits\" INTEGER NOT NULL,\n" " \"name\" TEXT NOT NULL,\n" " \"pageid\" INTEGER NOT NULL REFERENCES mpages(pageid) " "ON DELETE CASCADE\n" ");\n" "\n" "CREATE TABLE \"keys\" (\n" " \"bits\" INTEGER NOT NULL,\n" " \"key\" TEXT NOT NULL,\n" " \"pageid\" INTEGER NOT NULL REFERENCES mpages(pageid) " "ON DELETE CASCADE\n" ");\n" "CREATE INDEX keys_pageid_idx ON keys (pageid);\n"; if (SQLITE_OK != sqlite3_exec(db, sql, NULL, NULL, NULL)) { exitcode = (int)MANDOCLEVEL_SYSERR; say(MANDOC_DB, "%s", sqlite3_errmsg(db)); return(0); } prepare_statements: SQL_EXEC("PRAGMA foreign_keys = ON"); sql = "DELETE FROM mpages WHERE pageid IN " "(SELECT pageid FROM mlinks WHERE " "sec=? AND arch=? AND name=?)"; sqlite3_prepare_v2(db, sql, -1, &stmts[STMT_DELETE_PAGE], NULL); sql = "INSERT INTO mpages " "(desc,form) VALUES (?,?)"; sqlite3_prepare_v2(db, sql, -1, &stmts[STMT_INSERT_PAGE], NULL); sql = "INSERT INTO mlinks " "(sec,arch,name,pageid) VALUES (?,?,?,?)"; sqlite3_prepare_v2(db, sql, -1, &stmts[STMT_INSERT_LINK], NULL); sql = "INSERT INTO names " "(bits,name,pageid) VALUES (?,?,?)"; sqlite3_prepare_v2(db, sql, -1, &stmts[STMT_INSERT_NAME], NULL); sql = "INSERT INTO keys " "(bits,key,pageid) VALUES (?,?,?)"; sqlite3_prepare_v2(db, sql, -1, &stmts[STMT_INSERT_KEY], NULL); /* * When opening a new database, we can turn off * synchronous mode for much better performance. */ if (real) SQL_EXEC("PRAGMA synchronous = OFF"); return(1); } static void * hash_halloc(size_t sz, void *arg) { return(mandoc_calloc(sz, 1)); } static void * hash_alloc(size_t sz, void *arg) { return(mandoc_malloc(sz)); } static void hash_free(void *p, size_t sz, void *arg) { free(p); } static int set_basedir(const char *targetdir) { static char startdir[PATH_MAX]; static int fd; /* * Remember where we started by keeping a fd open to the origin * path component: throughout this utility, we chdir() a lot to * handle relative paths, and by doing this, we can return to * the starting point. */ if ('\0' == *startdir) { if (NULL == getcwd(startdir, PATH_MAX)) { exitcode = (int)MANDOCLEVEL_SYSERR; if (NULL != targetdir) say("", "&getcwd"); return(0); } if (-1 == (fd = open(startdir, O_RDONLY, 0))) { exitcode = (int)MANDOCLEVEL_SYSERR; say("", "&open %s", startdir); return(0); } if (NULL == targetdir) targetdir = startdir; } else { if (-1 == fd) return(0); if (-1 == fchdir(fd)) { close(fd); basedir[0] = '\0'; exitcode = (int)MANDOCLEVEL_SYSERR; say("", "&chdir %s", startdir); return(0); } if (NULL == targetdir) { close(fd); return(1); } } if (NULL == realpath(targetdir, basedir)) { basedir[0] = '\0'; exitcode = (int)MANDOCLEVEL_BADARG; say("", "&%s: realpath", targetdir); return(0); } else if (-1 == chdir(basedir)) { exitcode = (int)MANDOCLEVEL_BADARG; say("", "&chdir"); return(0); } return(1); } static void say(const char *file, const char *format, ...) { va_list ap; int use_errno; if ('\0' != *basedir) fprintf(stderr, "%s", basedir); if ('\0' != *basedir && '\0' != *file) fputs("//", stderr); if ('\0' != *file) fprintf(stderr, "%s", file); use_errno = 1; if (NULL != format) { switch (*format) { case ('&'): format++; break; case ('\0'): format = NULL; break; default: use_errno = 0; break; } } if (NULL != format) { if ('\0' != *basedir || '\0' != *file) fputs(": ", stderr); va_start(ap, format); vfprintf(stderr, format, ap); va_end(ap); } if (use_errno) { if ('\0' != *basedir || '\0' != *file || NULL != format) fputs(": ", stderr); perror(NULL); } else fputc('\n', stderr); }