/* $NetBSD: t_getprotoent.c,v 1.2 2012/04/04 10:03:53 joerg Exp $ */

/*-
 * Copyright (c) 2011 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Jukka Ruohonen.
 *
 * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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: t_getprotoent.c,v 1.2 2012/04/04 10:03:53 joerg Exp $");

#include <atf-c.h>
#include <netdb.h>
#include <limits.h>
#include <stdio.h>
#include <string.h>

static const struct {
        const char *name;
        int         number;
} protos[] = {

        { "icmp", 1 },  { "tcp", 6 },   { "udp", 17 },  { "gre", 47 },
        { "esp", 50 },  { "ah", 51 },   { "sctp", 132}, { "ipv6-icmp", 58 }
};

ATF_TC(endprotoent_rewind);
ATF_TC_HEAD(endprotoent_rewind, tc)
{
        atf_tc_set_md_var(tc, "descr", "Check that endprotoent(3) rewinds");
}

ATF_TC_BODY(endprotoent_rewind, tc)
{
        struct protoent *p;
        int i = 0;

        setprotoent(0);

        while ((p = getprotoent()) != NULL && i <= 10) {
                ATF_REQUIRE(p->p_proto == i);
                i++;
        }

        i = 0;
        endprotoent();

        while ((p = getprotoent()) != NULL && i <= 10) {
                ATF_REQUIRE(p->p_proto == i);
                i++;
        }

        endprotoent();
}

ATF_TC(getprotobyname_basic);
ATF_TC_HEAD(getprotobyname_basic, tc)
{
        atf_tc_set_md_var(tc, "descr", "A naive test of getprotobyname(3)");
}

ATF_TC_BODY(getprotobyname_basic, tc)
{
        struct protoent *p;
        size_t i;

        for (i = 0; i < __arraycount(protos); i++) {

                p = getprotobyname(protos[i].name);

                ATF_REQUIRE(p != NULL);
                ATF_REQUIRE(p->p_proto == protos[i].number);
                ATF_REQUIRE(strcmp(p->p_name, protos[i].name) == 0);
        }

        endprotoent();
}

ATF_TC(getprotobyname_err);
ATF_TC_HEAD(getprotobyname_err, tc)
{
        atf_tc_set_md_var(tc, "descr", "Test EOF from getprotobyname(3)");
}

ATF_TC_BODY(getprotobyname_err, tc)
{
        static const char * name[] =
            { "xxx", "yyy", "xyz", ".as.d}9x.._?!!#\xa4,\xa8^//&%%,",
              "0", "", "tCp", "uDp", "t c p", "tcp ", " tcp" };

        size_t i;

        for (i = 0; i < __arraycount(name); i++)
                ATF_REQUIRE(getprotobyname(name[i]) == NULL);

        endprotoent();
}

ATF_TC(getprotobynumber_basic);
ATF_TC_HEAD(getprotobynumber_basic, tc)
{
        atf_tc_set_md_var(tc, "descr", "A naive test of getprotobynumber(3)");
}

ATF_TC_BODY(getprotobynumber_basic, tc)
{
        struct protoent *p;
        size_t i;

        /*
         * No ATF_CHECK() due static storage.
         */
        for (i = 0; i < __arraycount(protos); i++) {

                p = getprotobynumber(protos[i].number);

                ATF_REQUIRE(p != NULL);
                ATF_REQUIRE(p->p_proto == protos[i].number);
                ATF_REQUIRE(strcmp(p->p_name, protos[i].name) == 0);
        }

        endprotoent();
}

ATF_TC(getprotobynumber_err);
ATF_TC_HEAD(getprotobynumber_err, tc)
{
        atf_tc_set_md_var(tc, "descr", "Test EOF from getprotobynumber(3)");
}

ATF_TC_BODY(getprotobynumber_err, tc)
{
        static const int number[] = { -1, -99999, INT_MAX, 1000000000 };
        size_t i;

        for (i = 0; i < __arraycount(number); i++)
                ATF_REQUIRE(getprotobynumber(number[i]) == NULL);

        endprotoent();
}

ATF_TC(getprotoent_next);
ATF_TC_HEAD(getprotoent_next, tc)
{
        atf_tc_set_md_var(tc, "descr", "getprotoent(3) returns next line?");
}

ATF_TC_BODY(getprotoent_next, tc)
{
        struct protoent *p;
        int i = 0;

        /*
         * The range [0, 60] is already reserved by IANA.
         */
        while ((p = getprotoent()) != NULL && i <= 60) {
                ATF_CHECK(p->p_proto == i);
                i++;
        }

        endprotoent();
}

ATF_TC(setprotoent_rewind);
ATF_TC_HEAD(setprotoent_rewind, tc)
{
        atf_tc_set_md_var(tc, "descr", "Check that setprotoent(3) rewinds");
}

ATF_TC_BODY(setprotoent_rewind, tc)
{
        struct protoent *p;

        setprotoent(0);

        p = getprotoent();
        ATF_REQUIRE(p->p_proto == 0);

        p = getprotoent();
        ATF_REQUIRE(p->p_proto == 1);

        p = getprotoent();
        ATF_REQUIRE(p->p_proto == 2);

        setprotoent(0);

        p = getprotoent();
        ATF_REQUIRE(p->p_proto == 0);

        p = getprotoent();
        ATF_REQUIRE(p->p_proto == 1);

        p = getprotoent();
        ATF_REQUIRE(p->p_proto == 2);

        endprotoent();
}

ATF_TP_ADD_TCS(tp)
{

        ATF_TP_ADD_TC(tp, getprotobyname_basic);
        ATF_TP_ADD_TC(tp, getprotobyname_err);
        ATF_TP_ADD_TC(tp, getprotobynumber_basic);
        ATF_TP_ADD_TC(tp, getprotobynumber_err);
        ATF_TP_ADD_TC(tp, endprotoent_rewind);
        ATF_TP_ADD_TC(tp, getprotoent_next);
        ATF_TP_ADD_TC(tp, setprotoent_rewind);

        return atf_no_error();
}