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/* $Id: apropos.c,v 1.20 2014/01/06 03:02:39 schwarze Exp $ */
/*
* Copyright (c) 2012 Kristaps Dzonsons <kristaps@bsd.lv>
* Copyright (c) 2013 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 <sys/param.h>
#include <assert.h>
#include <getopt.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "manpath.h"
#include "mansearch.h"
int
apropos(int argc, char *argv[])
{
int ch, whatis;
struct mansearch search;
size_t i, sz;
struct manpage *res;
struct manpaths paths;
char *defpaths, *auxpaths;
char *conf_file;
char *progname;
const char *outkey;
extern char *optarg;
extern int optind;
progname = strrchr(argv[0], '/');
if (progname == NULL)
progname = argv[0];
else
++progname;
whatis = (0 == strncmp(progname, "whatis", 6));
memset(&paths, 0, sizeof(struct manpaths));
memset(&search, 0, sizeof(struct mansearch));
auxpaths = defpaths = NULL;
conf_file = NULL;
outkey = "Nd";
while (-1 != (ch = getopt(argc, argv, "C:M:m:O:S:s:")))
switch (ch) {
case ('C'):
conf_file = optarg;
break;
case ('M'):
defpaths = optarg;
break;
case ('m'):
auxpaths = optarg;
break;
case ('O'):
outkey = optarg;
break;
case ('S'):
search.arch = optarg;
break;
case ('s'):
search.sec = optarg;
break;
default:
goto usage;
}
argc -= optind;
argv += optind;
if (0 == argc)
goto usage;
search.deftype = whatis ? TYPE_Nm : TYPE_Nm | TYPE_Nd;
search.flags = whatis ? MANSEARCH_WHATIS : 0;
manpath_parse(&paths, conf_file, defpaths, auxpaths);
ch = mansearch(&search, &paths, argc, argv, outkey, &res, &sz);
manpath_free(&paths);
if (0 == ch)
goto usage;
for (i = 0; i < sz; i++) {
printf("%s - %s\n", res[i].names,
NULL == res[i].output ? "" : res[i].output);
free(res[i].file);
free(res[i].names);
free(res[i].output);
}
free(res);
return(sz ? EXIT_SUCCESS : EXIT_FAILURE);
usage:
fprintf(stderr, "usage: %s [-C file] [-M path] [-m path] "
"[-O outkey] "
"[-S arch] [-s section]%s ...\n", progname,
whatis ? " name" : "\n expression");
return(EXIT_FAILURE);
}
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