/*
 * Copyright (c) 1992/3 Theo de Raadt <deraadt@fsa.ca>
 * 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.
 * 3. The name of the author may not be used to endorse or promote
 *    products derived from this software without specific prior written
 *    permission.
 *
 * 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.
 *
 * $FreeBSD: src/usr.bin/ypcat/ypcat.c,v 1.4.2.2 2002/02/15 00:46:56 des Exp $
 */

#include <sys/param.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <ctype.h>
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

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

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

static int key;

static void
usage(void)
{
        fprintf(stderr, "%s\n%s\n",
                "usage: ypcat [-k] [-d domainname] [-t] mapname",
                "       ypcat -x");
        exit(1);
}

static int
printit(unsigned long instatus, char *inkey, int inkeylen, char *inval, int invallen,
        void *indata __unused)
{
        if (instatus != YP_TRUE)
                return (instatus);
        if (key)
                printf("%*.*s ", inkeylen, inkeylen, inkey);
        printf("%*.*s\n", invallen, invallen, inval);
        return (0);
}

int
main(int argc, char  *argv[])
{
        char *domainname = NULL;
        struct ypall_callback ypcb;
        char *inmap;
        int notrans;
        int c, r;
        u_int i;

        notrans = key = 0;

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

        if (optind + 1 != argc)
                usage();

        if (!domainname)
                yp_get_default_domain(&domainname);

        inmap = argv[optind];
        for (i = 0; (!notrans) && i < NELEM(ypaliases); i++)
                if (strcmp(inmap, ypaliases[i].alias) == 0)
                        inmap = __DECONST(char *, ypaliases[i].name);
        ypcb.foreach = printit;
        ypcb.data = NULL;

        r = yp_all(domainname, inmap, &ypcb);
        switch (r) {
        case 0:
                break;
        case YPERR_YPBIND:
                errx(1, "not running ypbind");
        default:
                errx(1, "no such map %s. reason: %s", inmap, yperr_string(r));
        }
        exit(0);
}