1/* $Id: dba_read.c,v 1.5 2020/06/22 19:20:40 schwarze Exp $ */
2/*
3 * Copyright (c) 2016 Ingo Schwarze <schwarze@openbsd.org>
4 *
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 *
17 * Function to read the mandoc database from disk into RAM,
18 * such that data can be added or removed.
19 * The interface is defined in "dba.h".
20 * This file is seperate from dba.c because this also uses "dbm.h".
21 */
22#include "config.h"
23
24#include <regex.h>
25#include <stdint.h>
26#include <stdlib.h>
27#include <stdio.h>
28#include <string.h>
29
30#include "mandoc_aux.h"
31#include "mansearch.h"
32#include "dba_array.h"
33#include "dba.h"
34#include "dbm.h"
35
36
37struct dba *
38dba_read(const char *fname)
39{
40	struct dba		*dba;
41	struct dba_array	*page;
42	struct dbm_page		*pdata;
43	struct dbm_macro	*mdata;
44	const char		*cp;
45	int32_t			 im, ip, iv, npages;
46
47	if (dbm_open(fname) == -1)
48		return NULL;
49	npages = dbm_page_count();
50	dba = dba_new(npages < 128 ? 128 : npages);
51	for (ip = 0; ip < npages; ip++) {
52		pdata = dbm_page_get(ip);
53		page = dba_page_new(dba->pages, pdata->arch,
54		    pdata->desc, pdata->file + 1, *pdata->file);
55		for (cp = pdata->name; *cp != '\0'; cp = strchr(cp, '\0') + 1)
56			dba_page_add(page, DBP_NAME, cp);
57		for (cp = pdata->sect; *cp != '\0'; cp = strchr(cp, '\0') + 1)
58			dba_page_add(page, DBP_SECT, cp);
59		if ((cp = pdata->arch) != NULL)
60			while (*(cp = strchr(cp, '\0') + 1) != '\0')
61				dba_page_add(page, DBP_ARCH, cp);
62		cp = pdata->file;
63		while (*(cp = strchr(cp, '\0') + 1) != '\0')
64			dba_page_add(page, DBP_FILE, cp);
65	}
66	for (im = 0; im < MACRO_MAX; im++) {
67		for (iv = 0; iv < dbm_macro_count(im); iv++) {
68			mdata = dbm_macro_get(im, iv);
69			dba_macro_new(dba, im, mdata->value, mdata->pp);
70		}
71	}
72	dbm_close();
73	return dba;
74}
75