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Annotation of src/usr.bin/mandoc/apropos.c, Revision 1.20

1.20    ! schwarze    1: /*     $Id: apropos.c,v 1.19 2013/12/31 03:41:09 schwarze Exp $ */
1.1       schwarze    2: /*
1.18      schwarze    3:  * Copyright (c) 2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.19      schwarze    4:  * Copyright (c) 2013 Ingo Schwarze <schwarze@openbsd.org>
1.1       schwarze    5:  *
                      6:  * Permission to use, copy, modify, and distribute this software for any
                      7:  * purpose with or without fee is hereby granted, provided that the above
                      8:  * copyright notice and this permission notice appear in all copies.
                      9:  *
                     10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                     11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     13:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     14:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
                     15:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
                     16:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
                     17:  */
1.16      schwarze   18: #include <sys/param.h>
                     19:
1.1       schwarze   20: #include <assert.h>
                     21: #include <getopt.h>
1.18      schwarze   22: #include <stdint.h>
1.1       schwarze   23: #include <stdio.h>
                     24: #include <stdlib.h>
                     25: #include <string.h>
1.18      schwarze   26: #include <unistd.h>
1.1       schwarze   27:
1.8       schwarze   28: #include "manpath.h"
1.18      schwarze   29: #include "mansearch.h"
1.1       schwarze   30:
                     31: int
                     32: apropos(int argc, char *argv[])
                     33: {
1.18      schwarze   34:        int              ch, whatis;
                     35:        struct mansearch search;
                     36:        size_t           i, sz;
                     37:        struct manpage  *res;
1.8       schwarze   38:        struct manpaths  paths;
                     39:        char            *defpaths, *auxpaths;
1.12      schwarze   40:        char            *conf_file;
1.18      schwarze   41:        char            *progname;
1.20    ! schwarze   42:        const char      *outkey;
1.17      schwarze   43:        extern char     *optarg;
1.1       schwarze   44:        extern int       optind;
                     45:
                     46:        progname = strrchr(argv[0], '/');
                     47:        if (progname == NULL)
                     48:                progname = argv[0];
                     49:        else
                     50:                ++progname;
                     51:
1.17      schwarze   52:        whatis = (0 == strncmp(progname, "whatis", 6));
1.9       schwarze   53:
1.8       schwarze   54:        memset(&paths, 0, sizeof(struct manpaths));
1.18      schwarze   55:        memset(&search, 0, sizeof(struct mansearch));
1.8       schwarze   56:
                     57:        auxpaths = defpaths = NULL;
1.12      schwarze   58:        conf_file = NULL;
1.20    ! schwarze   59:        outkey = "Nd";
1.8       schwarze   60:
1.19      schwarze   61:        while (-1 != (ch = getopt(argc, argv, "C:M:m:O:S:s:")))
1.1       schwarze   62:                switch (ch) {
1.12      schwarze   63:                case ('C'):
                     64:                        conf_file = optarg;
                     65:                        break;
1.6       schwarze   66:                case ('M'):
1.8       schwarze   67:                        defpaths = optarg;
                     68:                        break;
1.6       schwarze   69:                case ('m'):
1.8       schwarze   70:                        auxpaths = optarg;
1.6       schwarze   71:                        break;
1.19      schwarze   72:                case ('O'):
                     73:                        outkey = optarg;
                     74:                        break;
1.3       schwarze   75:                case ('S'):
1.18      schwarze   76:                        search.arch = optarg;
1.1       schwarze   77:                        break;
1.3       schwarze   78:                case ('s'):
1.18      schwarze   79:                        search.sec = optarg;
1.1       schwarze   80:                        break;
                     81:                default:
1.17      schwarze   82:                        goto usage;
1.1       schwarze   83:                }
                     84:
                     85:        argc -= optind;
                     86:        argv += optind;
                     87:
1.17      schwarze   88:        if (0 == argc)
                     89:                goto usage;
1.9       schwarze   90:
1.18      schwarze   91:        search.deftype = whatis ? TYPE_Nm : TYPE_Nm | TYPE_Nd;
                     92:        search.flags = whatis ? MANSEARCH_WHATIS : 0;
1.8       schwarze   93:
1.12      schwarze   94:        manpath_parse(&paths, conf_file, defpaths, auxpaths);
1.19      schwarze   95:        ch = mansearch(&search, &paths, argc, argv, outkey, &res, &sz);
1.18      schwarze   96:        manpath_free(&paths);
1.1       schwarze   97:
1.18      schwarze   98:        if (0 == ch)
                     99:                goto usage;
1.1       schwarze  100:
1.18      schwarze  101:        for (i = 0; i < sz; i++) {
1.19      schwarze  102:                printf("%s - %s\n", res[i].names,
                    103:                    NULL == res[i].output ? "" : res[i].output);
1.18      schwarze  104:                free(res[i].file);
                    105:                free(res[i].names);
1.19      schwarze  106:                free(res[i].output);
1.16      schwarze  107:        }
1.17      schwarze  108:
1.18      schwarze  109:        free(res);
                    110:        return(sz ? EXIT_SUCCESS : EXIT_FAILURE);
1.17      schwarze  111: usage:
                    112:        fprintf(stderr, "usage: %s [-C file] [-M path] [-m path] "
1.19      schwarze  113:                        "[-O outkey] "
1.17      schwarze  114:                        "[-S arch] [-s section]%s ...\n", progname,
                    115:                        whatis ? " name" : "\n               expression");
                    116:        return(EXIT_FAILURE);
1.1       schwarze  117: }