/*      $OpenBSD: ypmatch.c,v 1.17 2021/06/22 20:14:25 jmc Exp $ */
/*      $NetBSD: ypmatch.c,v 1.8 1996/05/07 01:24:52 jtc Exp $  */

/*
 * Copyright (c) 1992, 1993, 1996 Theo de Raadt <deraadt@theos.com>
 * 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 AUTHOR ``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 AUTHOR 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/types.h>
#include <sys/socket.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <ctype.h>

#include <rpc/rpc.h>
#include <rpc/xdr.h>
#include <rpcsvc/yp_prot.h>
#include <rpcsvc/ypclnt.h>

void    usage(void);

struct ypalias {
        char *alias, *name;
} ypaliases[] = {
        { "passwd", "passwd.byname" },
        { "group", "group.byname" },
        { "networks", "networks.byaddr" },
        { "hosts", "hosts.byname" },
        { "protocols", "protocols.bynumber" },
        { "services", "services.byname" },
        { "aliases", "mail.aliases" },
        { "ethers", "ethers.byname" },
};

void
usage(void)
{
        fprintf(stderr,
            "usage: ypmatch [-kt] [-d domain] key ... mapname\n"
            "       ypmatch -x\n");

        exit(1);
}

int
main(int argc, char *argv[])
{
        char *domainname, *inkey, *inmap, *outbuf;
        extern char *optarg;
        extern int optind;
        int outbuflen, key, notrans, rval;
        int c, r, i;

        domainname = NULL;
        notrans = key = 0;
        while ((c=getopt(argc, argv, "xd:kt")) != -1)
                switch (c) {
                case 'x':
                        for(i=0; i<sizeof ypaliases/sizeof ypaliases[0]; i++)
                                printf("Use \"%s\" for \"%s\"\n",
                                        ypaliases[i].alias,
                                        ypaliases[i].name);
                        exit(0);
                case 'd':
                        domainname = optarg;
                        break;
                case 't':
                        notrans = 1;
                        break;
                case 'k':
                        key = 1;
                        break;
                default:
                        usage();
                }

        if ((argc-optind) < 2 )
                usage();

        if (!domainname) {
                yp_get_default_domain(&domainname);
        }

        inmap = argv[argc-1];
        if (!notrans) {
                for(i=0; i<sizeof ypaliases/sizeof ypaliases[0]; i++)
                        if (strcmp(inmap, ypaliases[i].alias) == 0)
                                inmap = ypaliases[i].name;
        }

        rval = 0;
        for(; optind < argc-1; optind++) {
                inkey = argv[optind];

                r = yp_match(domainname, inmap, inkey,
                        strlen(inkey), &outbuf, &outbuflen);
                switch (r) {
                case 0:
                        if (key)
                                printf("%s: ", inkey);
                        printf("%*.*s\n", outbuflen, outbuflen, outbuf);
                        break;
                case YPERR_YPBIND:
                        fprintf(stderr, "yp_match: not running ypbind\n");
                        exit(1);
                default:
                        fprintf(stderr, "Can't match key %s in map %s. Reason: %s\n",
                            inkey, inmap, yperr_string(r));
                        rval = 1;
                        break;
                }
        }
        exit(rval);
}