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freebsd-nq/contrib/mdocml/mandocdb.c
Baptiste Daroussin 1fb816da82 Update to mandoc cvs version as of 20141201 
- Compatiblity with existing manpages has been improved
- Now support ".so" directive with compressed manpages (which fixes a regression
we have since we have new man(1))
2014-12-02 23:24:57 +00:00

2478 lines
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/* $Id: mandocdb.c,v 1.171 2014/11/27 01:58:21 schwarze Exp $ */
/*
* Copyright (c) 2011, 2012 Kristaps Dzonsons <kristaps@bsd.lv>
* Copyright (c) 2011, 2012, 2013, 2014 Ingo Schwarze <schwarze@openbsd.org>
*
* 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 "config.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <assert.h>
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#if HAVE_FTS
#include <fts.h>
#else
#include "compat_fts.h"
#endif
#include <getopt.h>
#include <limits.h>
#include <stddef.h>
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#if HAVE_OHASH
#include <ohash.h>
#else
#include "compat_ohash.h"
#endif
#include <sqlite3.h>
#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 */
};
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 */
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 */
int form; /* format from file content */
};
struct mlink {
char file[PATH_MAX]; /* filename rel. to manpath */
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 dform; /* format from directory */
int fform; /* format from file name suffix */
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 void dbadd_mlink_name(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 *, void *);
static void *hash_calloc(size_t, 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 *, int);
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 */
{ NULL, 0 }, /* ll */
};
int
main(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.calloc = mlinks_info.calloc = hash_calloc;
mpages_info.free = mlinks_info.free = 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, "%s: -%c: Conflicting option\n", \
progname, (_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, "%s: -T%s: "
"Unsupported output format\n",
progname, 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, "%s: -C: Too many arguments\n",
progname);
goto usage;
}
exitcode = (int)MANDOCLEVEL_OK;
mc = mchars_alloc();
mp = mparse_alloc(mparse_options, MANDOCLEVEL_FATAL, NULL,
mc, NULL);
ohash_init(&mpages, 6, &mpages_info);
ohash_init(&mlinks, 6, &mlinks_info);
if (OP_UPDATE == op || OP_DELETE == op || OP_TEST == op) {
/*
* Most of these deal with a specific directory.
* Jump into that directory first.
*/
if (OP_TEST != op && 0 == set_basedir(path_arg, 1))
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_reallocarray(NULL,
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], argc > 0))
continue;
if (0 == treescan())
continue;
if (0 == dbopen(0))
continue;
mpages_merge(mc, mp);
if (warnings && !nodb &&
! (MPARSE_QUICK & mparse_options))
names_check();
dbclose(0);
if (j + 1 < dirs.sz) {
mpages_free();
ohash_delete(&mpages);
ohash_delete(&mlinks);
}
}
}
out:
manpath_free(&dirs);
mparse_free(mp);
mchars_free(mc);
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*[/<arch>]/<name>.<section>
* or
* [./]cat<section>[/<arch>]/<name>.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));
if (strlcpy(mlink->file, path,
sizeof(mlink->file)) >=
sizeof(mlink->file)) {
say(path, "Filename too long");
free(mlink);
continue;
}
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*[/<arch>]/<name>.<section>
* or
* [./]cat<section>[/<arch>]/<name>.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 (OP_TEST == op)
start = buf;
else if (strstr(buf, basedir) == buf)
start = buf + strlen(basedir);
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;
}
if (strlcpy(buf, file, sizeof(buf)) >= sizeof(buf)) {
say(file, "Filename too long");
return;
}
start = buf;
if (OP_TEST != op && strstr(buf, basedir) == buf)
start += strlen(basedir);
}
mlink = mandoc_calloc(1, sizeof(struct mlink));
mlink->dform = FORM_NONE;
if (strlcpy(mlink->file, start, sizeof(mlink->file)) >=
sizeof(mlink->file)) {
say(start, "Filename too long");
return;
}
/*
* 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;
}
(void)strlcpy(buf, mlink->file, sizeof(buf));
bufp = strstr(buf, "cat");
assert(NULL != bufp);
memcpy(bufp, "man", 3);
if (NULL != (bufp = strrchr(buf, '.')))
*++bufp = '\0';
(void)strlcat(buf, mlink->dsec, sizeof(buf));
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;
struct mpage *mpage, *mpage_dest;
struct mlink *mlink, *mlink_dest;
struct mdoc *mdoc;
struct man *man;
char *sodest;
char *cp;
int fd;
unsigned int pslot;
enum mandoclevel lvl;
str_info.alloc = hash_alloc;
str_info.calloc = hash_calloc;
str_info.free = hash_free;
str_info.key_offset = offsetof(struct str, key);
if ( ! nodb)
SQL_EXEC("BEGIN TRANSACTION");
mpage = ohash_first(&mpages, &pslot);
while (mpage != NULL) {
mlinks_undupe(mpage);
if (mpage->mlinks == NULL) {
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;
mparse_open(mp, &fd, mpage->mlinks->file);
if (fd == -1) {
say(mpage->mlinks->file, "&open");
goto nextpage;
}
/*
* 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 (mpage->mlinks->dform != FORM_CAT ||
mpage->mlinks->fform != FORM_CAT) {
lvl = mparse_readfd(mp, fd, mpage->mlinks->file);
if (lvl < MANDOCLEVEL_FATAL)
mparse_result(mp, &mdoc, &man, &sodest);
}
if (sodest != NULL) {
mlink_dest = ohash_find(&mlinks,
ohash_qlookup(&mlinks, sodest));
if (mlink_dest == NULL) {
mandoc_asprintf(&cp, "%s.gz", sodest);
mlink_dest = ohash_find(&mlinks,
ohash_qlookup(&mlinks, cp));
free(cp);
}
if (mlink_dest != NULL) {
/* 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_name(mlink);
if (mlink->next == NULL)
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 (mdoc != NULL) {
mpage->form = FORM_SRC;
mpage->sec = mdoc_meta(mdoc)->msec;
mpage->sec = mandoc_strdup(
mpage->sec == NULL ? "" : mpage->sec);
mpage->arch = mdoc_meta(mdoc)->arch;
mpage->arch = mandoc_strdup(
mpage->arch == NULL ? "" : mpage->arch);
mpage->title =
mandoc_strdup(mdoc_meta(mdoc)->title);
} else if (man != NULL) {
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);
if (*mpage->arch != '\0')
putkey(mpage, 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);
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 (mparse_wait(mp) != MANDOCLEVEL_OK) {
exitcode = (int)MANDOCLEVEL_SYSERR;
say(mpage->mlinks->file, "&wait gunzip");
}
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 sec, arch, name, pageid 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 = (const char *)sqlite3_column_text(stmt, 0);
sec = (const char *)sqlite3_column_text(stmt, 1);
arch = (const char *)sqlite3_column_text(stmt, 2);
key = (const char *)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 (-1 != fd)
close(fd);
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;
if (v & NAME_FIRST)
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 ((uint64_t)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(1, sizeof(struct str) + sz + 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 ((u = mchars_spec2cp(mc, seq, len)) <= 0)
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]);
}
static void
dbadd_mlink_name(const struct mlink *mlink)
{
size_t i;
dbadd_mlink(mlink);
i = 1;
SQL_BIND_INT64(stmts[STMT_INSERT_NAME], i, NAME_FILE & NAME_MASK);
SQL_BIND_TEXT(stmts[STMT_INSERT_NAME], i, mlink->name);
SQL_BIND_INT64(stmts[STMT_INSERT_NAME], i, mlink->mpage->pageid);
SQL_STEP(stmts[STMT_INSERT_NAME]);
sqlite3_reset(stmts[STMT_INSERT_NAME]);
}
/*
* 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) {
for (key = ohash_first(&names, &slot); NULL != key;
key = ohash_next(&names, &slot)) {
if (key->rendered != key->key)
free(key->rendered);
free(key);
}
for (key = ohash_first(&strings, &slot); NULL != key;
key = ohash_next(&strings, &slot)) {
if (key->rendered != key->key)
free(key->rendered);
free(key);
}
if (0 == debug)
return;
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 = strlen(mpage->desc) + 1;
key = mandoc_calloc(1, sizeof(struct str) + i);
memcpy(key->key, mpage->desc, i);
render_key(mc, key);
i = 1;
SQL_BIND_TEXT(stmts[STMT_INSERT_PAGE], i, key->rendered);
SQL_BIND_INT(stmts[STMT_INSERT_PAGE], i, mpage->form);
SQL_STEP(stmts[STMT_INSERT_PAGE]);
mpage->pageid = sqlite3_last_insert_rowid(db);
sqlite3_reset(stmts[STMT_INSERT_PAGE]);
if (key->rendered != key->key)
free(key->rendered);
free(key);
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;
if (SQLITE_CANTOPEN != rc)
say(MANDOC_DB, "%s", sqlite3_errstr(rc));
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_errstr(rc));
return(0);
}
(void)strlcpy(tempfilename, "/tmp/mandocdb.XXXXXX",
sizeof(tempfilename));
if (NULL == mkdtemp(tempfilename)) {
exitcode = (int)MANDOCLEVEL_SYSERR;
say("", "&%s", tempfilename);
return(0);
}
(void)strlcat(tempfilename, "/" MANDOC_DB,
sizeof(tempfilename));
rc = sqlite3_open_v2(tempfilename, &db, ofl, NULL);
if (SQLITE_OK != rc) {
exitcode = (int)MANDOCLEVEL_SYSERR;
say("", "%s: %s", tempfilename, sqlite3_errstr(rc));
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));
sqlite3_close(db);
return(0);
}
prepare_statements:
if (SQLITE_OK != sqlite3_exec(db,
"PRAGMA foreign_keys = ON", NULL, NULL, NULL)) {
exitcode = (int)MANDOCLEVEL_SYSERR;
say(MANDOC_DB, "PRAGMA foreign_keys: %s",
sqlite3_errmsg(db));
sqlite3_close(db);
return(0);
}
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);
#ifndef __APPLE__
/*
* When opening a new database, we can turn off
* synchronous mode for much better performance.
*/
if (real && SQLITE_OK != sqlite3_exec(db,
"PRAGMA synchronous = OFF", NULL, NULL, NULL)) {
exitcode = (int)MANDOCLEVEL_SYSERR;
say(MANDOC_DB, "PRAGMA synchronous: %s",
sqlite3_errmsg(db));
sqlite3_close(db);
return(0);
}
#endif
return(1);
}
static void *
hash_calloc(size_t n, size_t sz, void *arg)
{
return(mandoc_calloc(n, sz));
}
static void *
hash_alloc(size_t sz, void *arg)
{
return(mandoc_malloc(sz));
}
static void
hash_free(void *p, void *arg)
{
free(p);
}
static int
set_basedir(const char *targetdir, int report_baddir)
{
static char startdir[PATH_MAX];
static int getcwd_status; /* 1 = ok, 2 = failure */
static int chdir_status; /* 1 = changed directory */
char *cp;
/*
* Remember the original working directory, if possible.
* This will be needed if the second or a later directory
* on the command line is given as a relative path.
* Do not error out if the current directory is not
* searchable: Maybe it won't be needed after all.
*/
if (0 == getcwd_status) {
if (NULL == getcwd(startdir, sizeof(startdir))) {
getcwd_status = 2;
(void)strlcpy(startdir, strerror(errno),
sizeof(startdir));
} else
getcwd_status = 1;
}
/*
* We are leaving the old base directory.
* Do not use it any longer, not even for messages.
*/
*basedir = '\0';
/*
* If and only if the directory was changed earlier and
* the next directory to process is given as a relative path,
* first go back, or bail out if that is impossible.
*/
if (chdir_status && '/' != *targetdir) {
if (2 == getcwd_status) {
exitcode = (int)MANDOCLEVEL_SYSERR;
say("", "getcwd: %s", startdir);
return(0);
}
if (-1 == chdir(startdir)) {
exitcode = (int)MANDOCLEVEL_SYSERR;
say("", "&chdir %s", startdir);
return(0);
}
}
/*
* Always resolve basedir to the canonicalized absolute
* pathname and append a trailing slash, such that
* we can reliably check whether files are inside.
*/
if (NULL == realpath(targetdir, basedir)) {
if (report_baddir || errno != ENOENT) {
exitcode = (int)MANDOCLEVEL_BADARG;
say("", "&%s: realpath", targetdir);
}
return(0);
} else if (-1 == chdir(basedir)) {
if (report_baddir || errno != ENOENT) {
exitcode = (int)MANDOCLEVEL_BADARG;
say("", "&chdir");
}
return(0);
}
chdir_status = 1;
cp = strchr(basedir, '\0');
if ('/' != cp[-1]) {
if (cp - basedir >= PATH_MAX - 1) {
exitcode = (int)MANDOCLEVEL_SYSERR;
say("", "Filename too long");
return(0);
}
*cp++ = '/';
*cp = '\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)
fputc('/', 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);
}
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