/*
 * Copyright (c) 2017 Alexander Bluhm <bluhm@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/socket.h>

#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/ip6.h>
#include <netinet/tcp.h>
#include <netinet/udp.h>
#include <netinet/icmp6.h>

#include <err.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>

int
main(void)
{
        char promises[1024];
        size_t i, l;
        int s, r;
        int optval;
        socklen_t optlen;

        if (strcmp(PROMISES, "0") != 0) {
                l = strlcpy(promises, "stdio ", sizeof(promises));
                for (i = 0;
                    PROMISES[i] != '\0'&& l < sizeof(promises);
                    i++, l++) {
                        promises[l] = PROMISES[i] == '+' ?
                            ' ' : PROMISES[i];
                }
                if (l >= sizeof(promises))
                        l = sizeof(promises) - 1;
                promises[l] = '\0';
                warnx("pledge(%s)", promises);
                if (pledge(promises, NULL) == -1)
                        err(1, "pledge");
        }

        if ((s = socket(DOMAIN, TYPE, PROTOCOL)) == -1)
                err(1, "socket");
        optlen = sizeof(int);
        if (strcmp(CALL, "set") == 0) {
                optval = OPTVAL;
                r = setsockopt(s, LEVEL, OPTNAME, &optval, optlen);
        } else if (strcmp(CALL, "get") == 0) {
                optval = 0;
                r = getsockopt(s, LEVEL, OPTNAME, &optval, &optlen);
        } else {
                errx(1, "call: %s", CALL);
        }
        if (r == 0) {
                if (ERRNO != 0)
                        errx(1, "success");
        } else if (r == -1) {
                if (errno != ERRNO)
                        err(1, "error");
        } else {
                errx(1, "return: %d", r);
        }
        if (optval != OPTVAL)
                errx(1, "optval: %d", optval);

        return (0);
}