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📄 TODO(23.98 KB)
📄 apropos.1(10.66 KB)
📄 arch.c(1.94 KB)
📄 att.c(1.62 KB)
📄 catman.8(4.49 KB)
📄 catman.c(5.52 KB)
📄 cgi.c(27.06 KB)
📄 cgi.h.example(220 B)
📄 chars.c(13.24 KB)
📄 compat_err.c(2.68 KB)
📄 compat_fts.c(17.42 KB)
📄 compat_fts.h(4.09 KB)
📄 compat_getline.c(1.59 KB)
📄 compat_getsubopt.c(2.89 KB)
📄 compat_isblank.c(986 B)
📄 compat_mkdtemp.c(1.59 KB)
📄 compat_ohash.c(6.82 KB)
📄 compat_ohash.h(2.63 KB)
📄 compat_progname.c(1.05 KB)
📄 compat_reallocarray.c(1.49 KB)
📄 compat_recallocarray.c(2.88 KB)
📄 compat_strcasestr.c(2.38 KB)
📄 compat_stringlist.c(2.71 KB)
📄 compat_stringlist.h(1.73 KB)
📄 compat_strlcat.c(1.71 KB)
📄 compat_strlcpy.c(1.59 KB)
📄 compat_strndup.c(1.3 KB)
📄 compat_strsep.c(2.55 KB)
📄 compat_strtonum.c(1.88 KB)
📄 compat_vasprintf.c(1.55 KB)
📄 config.h(1.33 KB)
📄 configure(17.5 KB)
📄 configure.local.example(11.37 KB)
📄 dba.c(13.02 KB)
📄 dba.h(1.73 KB)
📄 dba_array.c(4.23 KB)
📄 dba_array.h(2 KB)
📄 dba_read.c(2.33 KB)
📄 dba_write.c(2.42 KB)
📄 dba_write.h(1.23 KB)
📄 dbm.c(9.28 KB)
📄 dbm.h(1.94 KB)
📄 dbm_map.c(4.67 KB)
📄 dbm_map.h(1.2 KB)
📄 demandoc.1(2.64 KB)
📄 demandoc.c(5.21 KB)
📄 eqn.7(12.07 KB)
📄 eqn.c(27.21 KB)
📄 eqn.h(2.19 KB)
📄 eqn_html.c(5.91 KB)
📄 eqn_parse.h(1.96 KB)
📄 eqn_term.c(4.83 KB)
📄 gmdiff(1.74 KB)
📄 html.c(19.34 KB)
📄 html.h(3.86 KB)
📄 lib.c(1.07 KB)
📄 lib.in(8.96 KB)
📄 libman.h(1.66 KB)
📄 libmandoc.h(3.21 KB)
📄 libmdoc.h(2.97 KB)
📄 main.c(28.93 KB)
📄 main.h(2.06 KB)
📄 makewhatis.8(4.78 KB)
📄 man-cgi.css(464 B)
📄 man.1(9.33 KB)
📄 man.7(16.8 KB)
📄 man.c(8.62 KB)
📄 man.cgi.3(7.83 KB)
📄 man.cgi.8(11.02 KB)
📄 man.conf.5(3.92 KB)
📄 man.h(991 B)
📄 man.options.1(21.05 KB)
📄 man_html.c(13.39 KB)
📄 man_macro.c(11.4 KB)
📄 man_term.c(25.6 KB)
📄 man_validate.c(11.84 KB)
📄 manconf.h(1.56 KB)
📄 mandoc.1(54.89 KB)
📄 mandoc.3(12.5 KB)
📄 mandoc.c(12.41 KB)
📄 mandoc.css(8.63 KB)
📄 mandoc.db.5(5.74 KB)
📄 mandoc.h(14.92 KB)
📄 mandoc_aux.c(2.42 KB)
📄 mandoc_aux.h(1.31 KB)
📄 mandoc_char.7(29.23 KB)
📄 mandoc_escape.3(9.33 KB)
📄 mandoc_headers.3(12.41 KB)
📄 mandoc_html.3(7.42 KB)
📄 mandoc_malloc.3(4.46 KB)
📄 mandoc_msg.c(8.92 KB)
📄 mandoc_ohash.c(1.58 KB)
📄 mandoc_ohash.h(1004 B)
📄 mandoc_parse.h(1.82 KB)
📄 mandoc_xr.c(2.75 KB)
📄 mandoc_xr.h(1.17 KB)
📄 mandocd.8(4.59 KB)
📄 mandocd.c(5.98 KB)
📄 mandocdb.c(55.16 KB)
📄 manpath.c(7.73 KB)
📄 manpath.h(1.22 KB)
📄 mansearch.3(3.26 KB)
📄 mansearch.c(18.99 KB)
📄 mansearch.h(4.03 KB)
📄 mchars_alloc.3(5.24 KB)
📄 mdoc.7(73.34 KB)
📄 mdoc.c(9.99 KB)
📄 mdoc.h(3.96 KB)
📄 mdoc_argv.c(16.19 KB)
📄 mdoc_html.c(36.48 KB)
📄 mdoc_macro.c(39.55 KB)
📄 mdoc_man.c(37.07 KB)
📄 mdoc_markdown.c(33.41 KB)
📄 mdoc_state.c(5.24 KB)
📄 mdoc_term.c(43.69 KB)
📄 mdoc_validate.c(61.85 KB)
📄 msec.c(1.09 KB)
📄 msec.in(1.48 KB)
📄 out.c(13.61 KB)
📄 out.h(2.26 KB)
📄 preconv.c(3.84 KB)
📄 predefs.in(2.05 KB)
📄 read.c(16.44 KB)
📄 roff.7(61.96 KB)
📄 roff.c(98.93 KB)
📄 roff.h(8.85 KB)
📄 roff_html.c(2.92 KB)
📄 roff_int.h(4.08 KB)
📄 roff_term.c(5.36 KB)
📄 roff_validate.c(3.41 KB)
📄 soelim.1(2.6 KB)
📄 soelim.c(3.76 KB)
📄 st.c(4.33 KB)
📄 tag.c(6.65 KB)
📄 tag.h(1.09 KB)
📄 tbl.3(6.9 KB)
📄 tbl.7(10.91 KB)
📄 tbl.c(3.89 KB)
📄 tbl.h(4.43 KB)
📄 tbl_data.c(7.3 KB)
📄 tbl_html.c(5.74 KB)
📄 tbl_int.h(2.09 KB)
📄 tbl_layout.c(8.06 KB)
📄 tbl_opts.c(3.77 KB)
📄 tbl_parse.h(1.31 KB)
📄 tbl_term.c(24.42 KB)
📄 term.c(24.4 KB)
📄 term.h(6.14 KB)
📄 term_ascii.c(9.88 KB)
📄 term_ps.c(27.41 KB)
📄 term_tab.c(3 KB)
📄 test-EFTYPE.c(56 B)
📄 test-O_DIRECTORY.c(88 B)
📄 test-PATH_MAX.c(1.02 KB)
📄 test-be32toh.c(147 B)
📄 test-cmsg.c(174 B)
📄 test-dirent-namlen.c(124 B)
📄 test-err.c(994 B)
📄 test-fgetln.c(147 B)
📄 test-fts.c(964 B)
📄 test-getline.c(186 B)
📄 test-getsubopt.c(1.31 KB)
📄 test-isblank.c(96 B)
📄 test-mkdtemp.c(175 B)
📄 test-nanosleep.c(239 B)
📄 test-noop.c(30 B)
📄 test-ntohl.c(91 B)
📄 test-ohash.c(585 B)
📄 test-pledge.c(73 B)
📄 test-progname.c(118 B)
📄 test-reallocarray.c(75 B)
📄 test-recallocarray.c(132 B)
📄 test-recvmsg.c(100 B)
📄 test-rewb-bsd.c(618 B)
📄 test-rewb-sysv.c(610 B)
📄 test-sandbox_init.c(186 B)
📄 test-strcasestr.c(131 B)
📄 test-stringlist.c(1.14 KB)
📄 test-strlcat.c(166 B)
📄 test-strlcpy.c(148 B)
📄 test-strndup.c(141 B)
📄 test-strptime.c(212 B)
📄 test-strsep.c(183 B)
📄 test-strtonum.c(1.25 KB)
📄 test-vasprintf.c(1.25 KB)
📄 test-wchar.c(1.58 KB)
📄 tree.c(8.17 KB)

Editing: dbm.c

/*	$Id: dbm.c,v 1.7 2019/07/01 22:56:24 schwarze Exp $ */
/*
 * Copyright (c) 2016 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.
 *
 * Map-based version of the mandoc database, for read-only access.
 * The interface is defined in "dbm.h".
 */
#include "config.h"

#include <assert.h>
#if HAVE_ENDIAN
#include <endian.h>
#elif HAVE_SYS_ENDIAN
#include <sys/endian.h>
#elif HAVE_NTOHL
#include <arpa/inet.h>
#endif
#if HAVE_ERR
#include <err.h>
#endif
#include <errno.h>
#include <regex.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "mansearch.h"
#include "dbm_map.h"
#include "dbm.h"

struct macro {
	int32_t	value;
	int32_t	pages;
};

struct page {
	int32_t	name;
	int32_t	sect;
	int32_t	arch;
	int32_t	desc;
	int32_t	file;
};

enum iter {
	ITER_NONE = 0,
	ITER_NAME,
	ITER_SECT,
	ITER_ARCH,
	ITER_DESC,
	ITER_MACRO
};

static struct macro	*macros[MACRO_MAX];
static int32_t		 nvals[MACRO_MAX];
static struct page	*pages;
static int32_t		 npages;
static enum iter	 iteration;

static struct dbm_res	 page_bytitle(enum iter, const struct dbm_match *);
static struct dbm_res	 page_byarch(const struct dbm_match *);
static struct dbm_res	 page_bymacro(int32_t, const struct dbm_match *);
static char		*macro_bypage(int32_t, int32_t);

/*** top level functions **********************************************/

/*
 * Open a disk-based mandoc database for read-only access.
 * Map the pages and macros[] arrays.
 * Return 0 on success.  Return -1 and set errno on failure.
 */
int
dbm_open(const char *fname)
{
	const int32_t	*mp, *ep;
	int32_t		 im;

if (dbm_map(fname) == -1)
		return -1;

if ((npages = be32toh(*dbm_getint(4))) < 0) {
		warnx("dbm_open(%s): Invalid number of pages: %d",
		    fname, npages);
		goto fail;
	}
	pages = (struct page *)dbm_getint(5);

if ((mp = dbm_get(*dbm_getint(2))) == NULL) {
		warnx("dbm_open(%s): Invalid offset of macros array", fname);
		goto fail;
	}
	if (be32toh(*mp) != MACRO_MAX) {
		warnx("dbm_open(%s): Invalid number of macros: %d",
		    fname, be32toh(*mp));
		goto fail;
	}
	for (im = 0; im < MACRO_MAX; im++) {
		if ((ep = dbm_get(*++mp)) == NULL) {
			warnx("dbm_open(%s): Invalid offset of macro %d",
			    fname, im);
			goto fail;
		}
		nvals[im] = be32toh(*ep);
		macros[im] = (struct macro *)++ep;
	}
	return 0;

fail:
	dbm_unmap();
	errno = EFTYPE;
	return -1;
}

void
dbm_close(void)
{
	dbm_unmap();
}

/*** functions for handling pages *************************************/

int32_t
dbm_page_count(void)
{
	return npages;
}

/*
 * Give the caller pointers to the data for one manual page.
 */
struct dbm_page *
dbm_page_get(int32_t ip)
{
	static struct dbm_page	 res;

assert(ip >= 0);
	assert(ip < npages);
	res.name = dbm_get(pages[ip].name);
	if (res.name == NULL)
		res.name = "(NULL)\0";
	res.sect = dbm_get(pages[ip].sect);
	if (res.sect == NULL)
		res.sect = "(NULL)\0";
	res.arch = pages[ip].arch ? dbm_get(pages[ip].arch) : NULL;
	res.desc = dbm_get(pages[ip].desc);
	if (res.desc == NULL)
		res.desc = "(NULL)";
	res.file = dbm_get(pages[ip].file);
	if (res.file == NULL)
		res.file = " (NULL)\0";
	res.addr = dbm_addr(pages + ip);
	return &res;
}

/*
 * Functions to start filtered iterations over manual pages.
 */
void
dbm_page_byname(const struct dbm_match *match)
{
	assert(match != NULL);
	page_bytitle(ITER_NAME, match);
}

void
dbm_page_bysect(const struct dbm_match *match)
{
	assert(match != NULL);
	page_bytitle(ITER_SECT, match);
}

void
dbm_page_byarch(const struct dbm_match *match)
{
	assert(match != NULL);
	page_byarch(match);
}

void
dbm_page_bydesc(const struct dbm_match *match)
{
	assert(match != NULL);
	page_bytitle(ITER_DESC, match);
}

void
dbm_page_bymacro(int32_t im, const struct dbm_match *match)
{
	assert(im >= 0);
	assert(im < MACRO_MAX);
	assert(match != NULL);
	page_bymacro(im, match);
}

/*
 * Return the number of the next manual page in the current iteration.
 */
struct dbm_res
dbm_page_next(void)
{
	struct dbm_res			 res = {-1, 0};

switch(iteration) {
	case ITER_NONE:
		return res;
	case ITER_ARCH:
		return page_byarch(NULL);
	case ITER_MACRO:
		return page_bymacro(0, NULL);
	default:
		return page_bytitle(iteration, NULL);
	}
}

/*
 * Functions implementing the iteration over manual pages.
 */
static struct dbm_res
page_bytitle(enum iter arg_iter, const struct dbm_match *arg_match)
{
	static const struct dbm_match	*match;
	static const char		*cp;
	static int32_t			 ip;
	struct dbm_res			 res = {-1, 0};

assert(arg_iter == ITER_NAME || arg_iter == ITER_DESC ||
	    arg_iter == ITER_SECT);

/* Initialize for a new iteration. */

if (arg_match != NULL) {
		iteration = arg_iter;
		match = arg_match;
		switch (iteration) {
		case ITER_NAME:
			cp = dbm_get(pages[0].name);
			break;
		case ITER_SECT:
			cp = dbm_get(pages[0].sect);
			break;
		case ITER_DESC:
			cp = dbm_get(pages[0].desc);
			break;
		default:
			abort();
		}
		if (cp == NULL) {
			iteration = ITER_NONE;
			match = NULL;
			cp = NULL;
			ip = npages;
		} else
			ip = 0;
		return res;
	}

/* Search for a name. */

while (ip < npages) {
		if (iteration == ITER_NAME)
			cp++;
		if (dbm_match(match, cp))
			break;
		cp = strchr(cp, '\0') + 1;
		if (iteration == ITER_DESC)
			ip++;
		else if (*cp == '\0') {
			cp++;
			ip++;
		}
	}

/* Reached the end without a match. */

if (ip == npages) {
		iteration = ITER_NONE;
		match = NULL;
		cp = NULL;
		return res;
	}

/* Found a match; save the quality for later retrieval. */

res.page = ip;
	res.bits = iteration == ITER_NAME ? cp[-1] : 0;

/* Skip the remaining names of this page. */

if (++ip < npages) {
		do {
			cp++;
		} while (cp[-1] != '\0' ||
		    (iteration != ITER_DESC && cp[-2] != '\0'));
	}
	return res;
}

static struct dbm_res
page_byarch(const struct dbm_match *arg_match)
{
	static const struct dbm_match	*match;
	struct dbm_res			 res = {-1, 0};
	static int32_t			 ip;
	const char			*cp;

/* Initialize for a new iteration. */

if (arg_match != NULL) {
		iteration = ITER_ARCH;
		match = arg_match;
		ip = 0;
		return res;
	}

/* Search for an architecture. */

for ( ; ip < npages; ip++)
		if (pages[ip].arch)
			for (cp = dbm_get(pages[ip].arch);
			    *cp != '\0';
			    cp = strchr(cp, '\0') + 1)
				if (dbm_match(match, cp)) {
					res.page = ip++;
					return res;
				}

/* Reached the end without a match. */

iteration = ITER_NONE;
	match = NULL;
	return res;
}

static struct dbm_res
page_bymacro(int32_t arg_im, const struct dbm_match *arg_match)
{
	static const struct dbm_match	*match;
	static const int32_t		*pp;
	static const char		*cp;
	static int32_t			 im, iv;
	struct dbm_res			 res = {-1, 0};

assert(im >= 0);
	assert(im < MACRO_MAX);

/* Initialize for a new iteration. */

if (arg_match != NULL) {
		iteration = ITER_MACRO;
		match = arg_match;
		im = arg_im;
		cp = nvals[im] ? dbm_get(macros[im]->value) : NULL;
		pp = NULL;
		iv = -1;
		return res;
	}
	if (iteration != ITER_MACRO)
		return res;

/* Find the next matching macro value. */

while (pp == NULL || *pp == 0) {
		if (++iv == nvals[im]) {
			iteration = ITER_NONE;
			return res;
		}
		if (iv)
			cp = strchr(cp, '\0') + 1;
		if (dbm_match(match, cp))
			pp = dbm_get(macros[im][iv].pages);
	}

/* Found a matching page. */

res.page = (struct page *)dbm_get(*pp++) - pages;
	return res;
}

/*** functions for handling macros ************************************/

int32_t
dbm_macro_count(int32_t im)
{
	assert(im >= 0);
	assert(im < MACRO_MAX);
	return nvals[im];
}

struct dbm_macro *
dbm_macro_get(int32_t im, int32_t iv)
{
	static struct dbm_macro macro;

assert(im >= 0);
	assert(im < MACRO_MAX);
	assert(iv >= 0);
	assert(iv < nvals[im]);
	macro.value = dbm_get(macros[im][iv].value);
	macro.pp = dbm_get(macros[im][iv].pages);
	return &macro;
}

/*
 * Filtered iteration over macro entries.
 */
void
dbm_macro_bypage(int32_t im, int32_t ip)
{
	assert(im >= 0);
	assert(im < MACRO_MAX);
	assert(ip != 0);
	macro_bypage(im, ip);
}

char *
dbm_macro_next(void)
{
	return macro_bypage(MACRO_MAX, 0);
}

static char *
macro_bypage(int32_t arg_im, int32_t arg_ip)
{
	static const int32_t	*pp;
	static int32_t		 im, ip, iv;

/* Initialize for a new iteration. */

if (arg_im < MACRO_MAX && arg_ip != 0) {
		im = arg_im;
		ip = arg_ip;
		pp = dbm_get(macros[im]->pages);
		iv = 0;
		return NULL;
	}
	if (im >= MACRO_MAX)
		return NULL;

/* Search for the next value. */

while (iv < nvals[im]) {
		if (*pp == ip)
			break;
		if (*pp == 0)
			iv++;
		pp++;
	}

/* Reached the end without a match. */

if (iv == nvals[im]) {
		im = MACRO_MAX;
		ip = 0;
		pp = NULL;
		return NULL;
	}

/* Found a match; skip the remaining pages of this entry. */

if (++iv < nvals[im])
		while (*pp++ != 0)
			continue;

return dbm_get(macros[im][iv - 1].value);
}

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Editing: dbm.c

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