NetBSD/usr.sbin/makemandb/whatis.c

113 lines
3.1 KiB
C

/* $NetBSD: whatis.c,v 1.9 2019/05/18 10:28:57 leot Exp $ */
/*-
* Copyright (c) 2012 Joerg Sonnenberger <joerg@NetBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__RCSID("$NetBSD: whatis.c,v 1.9 2019/05/18 10:28:57 leot Exp $");
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "apropos-utils.h"
__dead static void
usage(void)
{
fprintf(stderr, "%s [-C path] ...\n", "whatis");
exit(EXIT_FAILURE);
}
static int
whatis(sqlite3 *db, const char *cmd)
{
static const char sqlstr[] = "SELECT link AS name, section, name_desc"
" FROM mandb_links WHERE link=?"
" UNION"
" SELECT name, section, name_desc"
" FROM mandb WHERE name MATCH ? AND name=? COLLATE NOCASE"
" ORDER BY section";
sqlite3_stmt *stmt = NULL;
int retval;
int i;
if (sqlite3_prepare_v2(db, sqlstr, -1, &stmt, NULL) != SQLITE_OK)
errx(EXIT_FAILURE, "%s", sqlite3_errmsg(db));
for (i = 0; i < 3; i++) {
if (sqlite3_bind_text(stmt, i + 1, cmd, -1, NULL) != SQLITE_OK)
errx(EXIT_FAILURE, "%s", sqlite3_errmsg(db));
}
retval = 1;
while (sqlite3_step(stmt) == SQLITE_ROW) {
printf("%s(%s) - %s\n", sqlite3_column_text(stmt, 0),
sqlite3_column_text(stmt, 1),
sqlite3_column_text(stmt, 2));
retval = 0;
}
sqlite3_finalize(stmt);
if (retval)
fprintf(stderr, "%s: not found\n", cmd);
return retval;
}
int
main(int argc, char *argv[])
{
sqlite3 *db;
int ch, retval;
const char *manconf = MANCONF;
while ((ch = getopt(argc, argv, "C:")) != -1) {
switch (ch) {
case 'C':
manconf = optarg;
break;
default:
usage();
}
}
argc -= optind;
argv += optind;
if (argc == 0)
usage();
if ((db = init_db(MANDB_READONLY, manconf)) == NULL)
exit(EXIT_FAILURE);
retval = 0;
while (argc--)
retval |= whatis(db, *argv++);
close_db(db);
return retval;
}