From a2d696dea797faaa3157046c8ae89cd70e965bff Mon Sep 17 00:00:00 2001
From: scratko <m@scratko.xyz>
Date: Sat, 10 Aug 2024 02:46:56 +0300
Subject: Prefinal version

Added client.
Moved files to directories.
---
 server/server.c | 759 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 759 insertions(+)
 create mode 100644 server/server.c

(limited to 'server/server.c')

diff --git a/server/server.c b/server/server.c
new file mode 100644
index 0000000..0a2bd0f
--- /dev/null
+++ b/server/server.c
@@ -0,0 +1,759 @@
+#include <stdio.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <fcntl.h>
+#include <syslog.h>
+#include <time.h>
+
+#include "server.h"
+#include "server_data_processing.h"
+#include "server_game_process.h"
+#include "card_stack.h"
+#include "card_queue.h"
+
+
+static void init_session(struct session *new_session, struct sockaddr_in *from,
+                         int fd, int player_position)
+{
+    new_session->fd = fd;
+    new_session->record = 1;
+    new_session->state = display_only_table;
+    new_session->player_position = player_position;
+    new_session->tm = none;
+    new_session->defense_lost = 0;
+    init_stack(&new_session->deck);
+}
+
+static int accept_client(struct server *serv)
+{
+    int fd, i;
+    struct sockaddr_in addr;
+    struct session *new_session;
+    socklen_t len = sizeof(addr);
+    fd = accept(serv->listen_socket, (struct sockaddr*) &addr, &len);
+    if(fd == -1)
+        return -1;
+
+    if(fd >= serv->max_sess_arr_size) {
+        int newlen = serv->max_sess_arr_size;
+        while(fd >= newlen)
+            newlen += init_sess_arr_size;
+        serv->sess_arr =
+            realloc(serv->sess_arr, newlen * sizeof(struct session*));
+        for(i = serv->max_sess_arr_size; i < newlen; i++)
+            serv->sess_arr[i] = NULL;
+        serv->max_sess_arr_size = newlen;
+    }
+    new_session = malloc(sizeof(struct session));
+    serv->sess_arr[fd] = new_session;
+    ++serv->connected_players_counter;
+    init_session(new_session, &addr, fd, serv->connected_players_counter);
+    return 1;
+}
+
+static int check_playable_player_number(struct server *serv)
+{
+    return serv->connected_players_counter >= 2 &&
+            serv->connected_players_counter < 8;
+}
+
+static int is_max_playable_player_number(struct server *serv)
+{
+    return serv->connected_players_counter == 8;
+}
+
+static void init_new_game(struct server *serv)
+{
+    int i,j, lowest_trump, current_trump, who_attack;
+    /* idx in serv->turn_queue */
+    who_attack = -1;
+    lowest_trump = 0;
+
+    serv->shuffled_deck = get_shuffled_deck();
+    serv->trump_card =
+        extract_trump_card(serv->shuffled_deck, &serv->shuffled_deck_size);
+    serv->trump_suit = serv->trump_card + strlen(serv->trump_card) - 1;
+#if 0
+    serv->trump_suit = find_trump_suit(serv->shuffled_deck,
+                                       &serv->shuffled_deck_size);
+#endif
+    serv->turn_queue = malloc(sizeof(struct session*) *
+                              serv->connected_players_counter);
+    /* number of cards each player holds */
+    serv->cc.number_arr_idx = serv->connected_players_counter - 1;
+    serv->cc.number_arr = malloc(sizeof(int) * serv->connected_players_counter);
+    serv->position_whose_turn = 0;
+    serv->cot.card_arr_idx = -1;
+    /*
+     * dealing cards to all and
+     * determining who moves first
+     */
+    for(i = 0, j = 0; i < serv->max_sess_arr_size; ++i) {
+        if(serv->sess_arr[i]) {
+            serv->turn_queue[j] = serv->sess_arr[i];
+            deal_first_cards(serv->shuffled_deck, &serv->shuffled_deck_size,
+                             &serv->sess_arr[i]->deck);
+            current_trump = find_lowest_trump(serv->sess_arr[i]->deck,
+                                              serv->trump_suit);
+            if(current_trump)
+                if(!lowest_trump || current_trump < lowest_trump) {
+                    lowest_trump = current_trump;
+                    who_attack = j;
+                }
+            ++j;
+        }
+    }
+    /* random selection of the first player */
+    if(who_attack == -1) {
+        who_attack =
+            0 + (int)((double)serv->connected_players_counter*rand()/
+            (RAND_MAX + 1.0));
+    }
+    for(i = 0; i < who_attack; ++i)
+        shift_turn_queue_by_one(serv->turn_queue,
+                                  serv->connected_players_counter);
+    update_card_quantity_arr(serv);
+    init_queue(&serv->cq);
+    serv->gi = get_new_game_info(serv->connected_players_counter,
+                                 serv->cc.number_arr,
+                                 serv->shuffled_deck_size,
+                                 serv->trump_card, serv->position_whose_turn,
+                                 &serv->cq, &serv->cot);
+}
+
+static void set_whose_turn(struct server *serv, enum client_game_states state)
+{
+    switch(state) {
+    case attack:
+        serv->position_whose_turn = serv->turn_queue[0]->player_position;
+        break;
+    case defense:
+        serv->position_whose_turn = serv->turn_queue[1]->player_position;
+        break;
+    case tossing:
+    default:
+        serv->position_whose_turn = 0;
+    }
+}
+
+static void set_state_for_client(struct server *serv,
+                                 enum client_game_states state)
+{
+    int i;
+
+    switch(state) {
+    case attack:
+        serv->turn_queue[0]->state = attack;
+        break;
+    case defense:
+        serv->turn_queue[1]->state = defense;
+        break;
+    case tossing:
+        serv->turn_queue[1]->state = tossing_expectation;
+    default:
+        {}
+    }
+
+    for(i = 0; i < serv->connected_players_counter; ++i) {
+        switch(state) {
+        case attack:
+            if(serv->turn_queue[i] && serv->turn_queue[i] !=
+                                                serv->turn_queue[0])
+                serv->turn_queue[i]->state = attack_expectation;
+            break;
+        case defense:
+            if(serv->turn_queue[i] && serv->turn_queue[i] !=
+                                                    serv->turn_queue[1])
+                serv->turn_queue[i]->state = defense_expectation;
+            break;
+        case tossing:
+            if(serv->turn_queue[i] && serv->turn_queue[i] !=
+                                                    serv->turn_queue[1]) {
+                if(check_player_can_toss_card(serv->turn_queue[i]->deck,
+                                              &serv->cot))
+                {
+                    serv->turn_queue[i]->tm = answer_wait;
+                    serv->turn_queue[i]->state = tossing;
+                } else {
+                    serv->turn_queue[i]->tm = none;
+                    serv->turn_queue[i]->state = tossing_expectation;
+                }
+            }
+            break;
+        case display_only_table:
+            if(serv->turn_queue[i])
+                serv->turn_queue[i]->state = display_only_table;
+            break;
+        default:
+            {}
+        }
+    }
+}
+
+static void set_record_status_for_all(struct server *serv)
+{
+    int i;
+    for(i = 0; i < serv->max_sess_arr_size; ++i)
+        if(serv->sess_arr[i])
+            serv->sess_arr[i]->record = 1;
+}
+
+static int print_table_condition(struct server *serv)
+{
+    return !check_defender_can_defend(&serv->cq, serv->turn_queue[1]->deck,
+                                      serv->trump_suit) &&
+           !check_someone_can_toss_card(serv->turn_queue,
+                                        serv->connected_players_counter,
+                                        &serv->cq, &serv->cot);
+}
+
+static int defense_condition(struct server *serv)
+{
+    return check_defender_can_defend(&serv->cq, serv->turn_queue[1]->deck,
+                                     serv->trump_suit);
+}
+/*
+ * TODO refactoring
+ */
+static void define_phase_after_attack(struct server *serv)
+{
+    if(print_table_condition(serv)) {
+        set_state_for_client(serv, display_only_table);
+        put_all_cards_from_queue_to_table(&serv->cot, &serv->cq);
+        serv->turn_queue[1]->defense_lost = 1;
+        serv->state = table;
+    } else if(defense_condition(serv)) {
+        set_state_for_client(serv, defense);
+        set_whose_turn(serv, defense);
+        put_one_card_from_queue_to_table(&serv->cot, &serv->cq);
+        serv->state = defense_phase_out;
+    } else {
+        serv->turn_queue[1]->defense_lost = 1;
+        put_all_cards_from_queue_to_table(&serv->cot, &serv->cq);
+        if(is_receiving_cards_limit(&serv->cot, serv->turn_queue[1]->deck,
+                                    &serv->cq)) {
+            set_state_for_client(serv, display_only_table);
+            serv->state = table;
+        } else {
+            set_state_for_client(serv, tossing);
+            set_whose_turn(serv, tossing);
+            serv->state = tossing_phase_out;
+        }
+
+    }
+}
+
+static void define_phase_after_defense(struct server *serv)
+{
+    /* card wasn't beated */
+    if(serv->cot.card_arr[serv->cot.card_arr_idx][0] == '-') {
+        serv->turn_queue[1]->defense_lost = 1;
+        put_all_cards_from_queue_to_table(&serv->cot, &serv->cq);
+        /* go to tossing cards */
+        if(!is_receiving_cards_limit(&serv->cot, serv->turn_queue[1]->deck,
+                                     &serv->cq) &&
+            check_someone_can_toss_card(serv->turn_queue,
+                                       serv->connected_players_counter,
+                                       &serv->cq, &serv->cot))
+        {
+            set_state_for_client(serv, tossing);
+            set_whose_turn(serv, tossing);
+            serv->state = tossing_phase_out;
+        /* then begin new attack */
+        } else {
+            set_state_for_client(serv, display_only_table);
+            serv->state = table;
+        }
+    /* can defender continue defense? */
+    } else {
+        /* the defender has beaten the attack or tossing phase completely */
+        if(is_empty_queue(&serv->cq)) {
+            if(!is_receiving_cards_limit(&serv->cot, serv->turn_queue[0]->deck,
+                                         &serv->cq) &&
+                check_someone_can_toss_card(serv->turn_queue,
+                                           serv->connected_players_counter,
+                                           &serv->cq, &serv->cot))
+            {
+                set_state_for_client(serv, tossing);
+                set_whose_turn(serv, tossing);
+                serv->state = tossing_phase_out;
+            } else {
+                set_state_for_client(serv, display_only_table);
+                serv->state = table;
+            }
+            /* card queue contains some cards for defender */
+        } else {
+            /* defender can defense */
+            if(defense_condition(serv)) {
+                put_one_card_from_queue_to_table(&serv->cot, &serv->cq);
+                set_state_for_client(serv, defense);
+                set_whose_turn(serv, defense);
+                serv->state = defense_phase_out;
+            }
+                /* defender can't defense */
+#if 0
+            } else {
+                serv->turn_queue[1]->defense_lost = 1;
+                put_all_cards_from_queue_to_table(&serv->cot, &serv->cq);
+                if(check_someone_can_toss_card(serv->turn_queue,
+                                               serv->connected_players_counter,
+                                               &serv->cq, &serv->cot))
+                {
+                    set_state_for_client(serv, tossing);
+                    set_whose_turn(serv, tossing);
+                    serv->state = tossing_phase_out;
+                } else {
+                    move_all_cards_to_defender(&serv->cot,
+                                               &serv->turn_queue[1]->deck);
+                    /* add shifting of turn arr*/
+                    set_state_for_client(serv, attack);
+                    set_whose_turn(serv, attack);
+                    serv->state = attack_phase_out;
+                }
+            }
+#endif
+        }
+    }
+}
+
+static void define_phase_after_tossing(struct server *serv)
+{
+    if(serv->turn_queue[1]->defense_lost) {
+        if(is_empty_queue(&serv->cq)) {
+            /* nobody's put any cards on the table */
+            set_state_for_client(serv, display_only_table);
+            serv->state = table;
+        }
+        else {
+            put_all_cards_from_queue_to_table(&serv->cot, &serv->cq);
+            if(is_receiving_cards_limit(&serv->cot, serv->turn_queue[1]->deck,
+                                        &serv->cq) &&
+                    check_someone_can_toss_card(serv->turn_queue,
+                                           serv->connected_players_counter,
+                                           &serv->cq, &serv->cot))
+            {
+                set_state_for_client(serv, tossing);
+                set_whose_turn(serv, tossing);
+                serv->state = tossing_phase_out;
+            } else {
+                set_state_for_client(serv, display_only_table);
+                serv->state = table;
+            }
+        }
+        /* defense continue? */
+    } else {
+        if(is_empty_queue(&serv->cq)) {
+            set_state_for_client(serv, display_only_table);
+            serv->state = table;
+        } else {
+            if(check_defender_can_defend(&serv->cq, serv->turn_queue[1]->deck,
+                                         serv->trump_suit)) {
+                put_one_card_from_queue_to_table(&serv->cot, &serv->cq);
+                set_state_for_client(serv, defense);
+                set_whose_turn(serv, defense);
+                serv->state = defense_phase_out;
+            } else {
+                serv->turn_queue[1]->defense_lost = 1;
+                put_all_cards_from_queue_to_table(&serv->cot, &serv->cq);
+                if(is_receiving_cards_limit(&serv->cot,
+                                            serv->turn_queue[1]->deck,
+                                            &serv->cq) &&
+                        check_someone_can_toss_card(serv->turn_queue,
+                                            serv->connected_players_counter,
+                                            &serv->cq, &serv->cot))
+                {
+                    set_state_for_client(serv, tossing);
+                    set_whose_turn(serv, tossing);
+                    serv->state = tossing_phase_out;
+                } else {
+                    set_state_for_client(serv, display_only_table);
+                    serv->state = table;
+                }
+            }
+        }
+    }
+}
+
+static void determine_server_state(struct server *serv)
+{
+    switch(serv->state) {
+    case no_players:
+        serv->state = first_player;
+        break;
+    case first_player:
+        if(check_playable_player_number(serv))
+            serv->state = confirmation_waiting;
+        break;
+    case confirmation_waiting:
+            set_record_status_for_all(serv);
+            init_new_game(serv);
+            serv->state = start_game;
+        break;
+    case start_game:
+        set_state_for_client(serv, attack);
+        set_whose_turn(serv, attack);
+        set_record_status_for_all(serv);
+        serv->state = attack_phase_out;
+        break;
+    case attack_phase_out:
+        serv->state = attack_phase_in;
+        break;
+    case attack_phase_in:
+    case defense_phase_in:
+    case tossing_phase_in:
+        if(serv->state == attack_phase_in)
+            define_phase_after_attack(serv);
+        else if(serv->state == defense_phase_in)
+            define_phase_after_defense(serv);
+        else
+        /* all answers received or the limit on card tossing was reached */
+            define_phase_after_tossing(serv);
+        set_record_status_for_all(serv);
+        update_card_quantity_arr(serv);
+        update_game_info(serv->gi, serv->connected_players_counter,
+                         serv->shuffled_deck_size, serv->position_whose_turn);
+        break;
+    case table:
+        if(serv->turn_queue[1]->defense_lost) {
+            move_all_cards_to_defender(&serv->cot, &serv->turn_queue[1]->deck);
+            move_turn_queue_two_players_ahead(serv->turn_queue,
+                                              serv->connected_players_counter);
+        }
+        else {
+            remove_cards_from_table(&serv->cot);
+            shift_turn_queue_by_one(serv->turn_queue,
+                                    serv->connected_players_counter);
+        }
+        set_record_status_for_all(serv);
+        set_state_for_client(serv, attack);
+        set_whose_turn(serv, attack);
+        update_card_quantity_arr(serv);
+        deal_cards(serv->shuffled_deck, &serv->shuffled_deck_size,
+                   serv->turn_queue, serv->connected_players_counter,
+                   serv->cc.number_arr);
+        serv->state = attack_phase_out;
+        break;
+    case defense_phase_out:
+        serv->state = defense_phase_in;
+        break;
+    case tossing_phase_out:
+        serv->state = tossing_phase_in;
+        break;
+    }
+    serv->change_server_state = 0;
+}
+
+static int new_player_tracking_condition(enum server_states state)
+{
+    return state == no_players || state == first_player ||
+           state == confirmation_waiting;
+}
+/*
+ * when accepting new players
+ */
+static int server_state_change_condition(struct server *serv)
+{
+    return
+        serv->state == no_players ||
+        (serv->state == first_player && check_playable_player_number(serv)) ||
+        (serv->state == confirmation_waiting &&
+                                        is_max_playable_player_number(serv));
+
+}
+
+static int accept_new_player(struct server *serv)
+{
+    int accept_result;
+    accept_result = accept_client(serv);
+    if(accept_result == -1) {
+        syslog(LOG_ERR, "accept error");
+        return -1;
+    }
+    /* update info about connected players */
+    set_record_status_for_all(serv);
+    if(server_state_change_condition(serv))
+        serv->change_server_state = 1;
+    return 1;
+}
+
+static void set_up_player_tracking(struct server *serv, fd_set *readfds,
+                                   fd_set *writefds)
+{
+    int i;
+    for(i = 0; i < serv->max_sess_arr_size; ++i) {
+        if(!serv->sess_arr[i])
+            continue;
+
+        switch(serv->state) {
+        case first_player:
+            if(serv->sess_arr[i]->record)
+                FD_SET(i, writefds);
+            break;
+        case confirmation_waiting:
+            FD_SET(i, readfds);
+            if(serv->sess_arr[i]->record)
+                FD_SET(i, writefds);
+            break;
+        case start_game:
+        case attack_phase_out:
+        case table:
+        case defense_phase_out:
+        case tossing_phase_out:
+            if(serv->sess_arr[i]->record)
+                FD_SET(i, writefds);
+            break;
+        case attack_phase_in:
+            if(serv->sess_arr[i]->state == attack)
+                FD_SET(i, readfds);
+            break;
+        case defense_phase_in:
+            if(serv->sess_arr[i]->state == defense)
+                FD_SET(i, readfds);
+            break;
+        case tossing_phase_in:
+            if(serv->sess_arr[i]->state == tossing &&
+                                        serv->sess_arr[i]->tm == answer_wait)
+                FD_SET(i, readfds);
+            break;
+        case no_players:
+            {}
+        }
+    }
+}
+
+static int check_server_state_change_conditions(int is_tossing_limit,
+                                                struct server *serv)
+{
+    switch(serv->state) {
+    case start_game:
+    case attack_phase_out:
+    case attack_phase_in:
+    case defense_phase_out:
+    case defense_phase_in:
+    case tossing_phase_out:
+    case table:
+        return 1;
+    case tossing_phase_in:
+        if(is_tossing_limit ||
+                check_all_answers_were_received((const struct session**)
+                                                 serv->turn_queue,
+                                             serv->connected_players_counter))
+            return 1;
+    default:
+        return 0;
+    }
+    return 0;
+}
+
+static void close_connection()
+{
+}
+
+static void make_data_transfer(struct server *serv, fd_set *readfds,
+                               fd_set *writefds)
+{
+    int i, result, tossing_limit = 0;
+    for(i = 0; i < serv->max_sess_arr_size; ++i) {
+        if(!serv->sess_arr[i])
+            continue;
+
+        switch(serv->state) {
+        case first_player:
+            if(FD_ISSET(i, writefds)) {
+                result = print_message_for_first_player(i);
+                serv->sess_arr[i]->record = 0;
+            }
+            break;
+        case confirmation_waiting:
+            if(FD_ISSET(i, writefds) && serv->sess_arr[i]->record) {
+                result =
+                    print_connected_players(i, serv->connected_players_counter);
+                serv->sess_arr[i]->record = 0;
+            }
+            if(FD_ISSET(i, readfds)) {
+                result = check_readiness(serv->sess_arr[i]);
+                if(result == 1)
+                    serv->change_server_state = 1;
+            }
+            break;
+        case start_game:
+        case attack_phase_out:
+        case defense_phase_out:
+        case tossing_phase_out:
+        case table:
+            if(FD_ISSET(i, writefds) && serv->sess_arr[i]->record)
+                result = print_game_part(serv->sess_arr[i], serv->gi);
+            serv->sess_arr[i]->record = 0;
+            break;
+        case attack_phase_in:
+            if(FD_ISSET(i, readfds))
+                result = get_cards_from_attacker(serv->sess_arr[i], &serv->cot,
+                                                 serv->turn_queue[1]->deck,
+                                                 &serv->cq);
+            break;
+        case defense_phase_in:
+            if(FD_ISSET(i, readfds))
+                result = get_card_from_defender(serv->sess_arr[i], &serv->cot,
+                                                serv->trump_suit);
+            break;
+        case tossing_phase_in:
+            if(FD_ISSET(i, readfds)) {
+                /* to determine that the player can no longer tossing */
+                if(tossing_limit)
+                    serv->sess_arr[i]->tm = cancel;
+                result =
+                    get_cards_from_tossing_player(serv->sess_arr[i],
+                                                  serv->turn_queue[1]->deck,
+                                                  &serv->cot, &serv->cq);
+                if(result == 1 || result == 2)
+                    serv->sess_arr[i]->tm = answer_got;
+
+                if(result == 2)
+                    tossing_limit = 1;
+                else if(result == 3)
+                    serv->sess_arr[i]->tm = cancel;
+            }
+            break;
+        case no_players:
+            {}
+        }
+    }
+    if(serv->state == start_game || serv->state == table)
+        sleep(2);
+    if(check_server_state_change_conditions(tossing_limit, serv))
+        serv->change_server_state = 1;
+    /* connection is closed */
+    if(!result)
+        close_connection();
+}
+
+int main_loop(struct server *serv)
+{
+    int maxfd, accept_result, select_result;
+    fd_set readfds, writefds;
+
+    for(;;) {
+        if(serv->change_server_state)
+            determine_server_state(serv);
+        FD_ZERO(&readfds);
+        FD_ZERO(&writefds);
+
+        if(new_player_tracking_condition(serv->state)) {
+            FD_SET(serv->listen_socket, &readfds);
+            maxfd = serv->listen_socket;
+        }
+
+        set_up_player_tracking(serv, &readfds, &writefds);
+
+        select_result = select(maxfd + 1, &readfds, &writefds, NULL, NULL);
+        if(select_result == -1)
+            return 3;
+
+        if(FD_ISSET(serv->listen_socket, &readfds)) {
+            accept_result = accept_new_player(serv);
+            if(accept_result == -1)
+                return 4;
+        }
+        make_data_transfer(serv, &readfds, &writefds);
+    }
+}
+
+/*
+ * 0 - error
+ * 1 - success
+ */
+static int init_server(struct server *serv, int port)
+{
+    int opt, i;
+    struct sockaddr_in addr;
+
+    serv->listen_socket = socket(AF_INET, SOCK_STREAM, 0);
+    if(serv->listen_socket == -1)
+        return 0;
+
+    opt = 1;
+    setsockopt(serv->listen_socket, SOL_SOCKET, SO_REUSEADDR, &opt,
+               sizeof(opt));
+
+    addr.sin_family = AF_INET;
+    addr.sin_addr.s_addr = htonl(INADDR_ANY);
+    addr.sin_port = htons(port);
+
+    if(bind(serv->listen_socket, (struct sockaddr*) &addr, sizeof(addr)) == -1)
+        return 0;
+
+    serv->sess_arr = malloc(sizeof(*serv->sess_arr) *
+                                init_sess_arr_size);
+    serv->max_sess_arr_size = init_sess_arr_size;
+    for(i = 0; i < init_sess_arr_size; i++)
+        serv->sess_arr[i] = NULL;
+
+    serv->state = no_players;
+    serv->change_server_state = 0;
+    serv->connected_players_counter = 0;
+    serv->shuffled_deck = NULL;
+    serv->shuffled_deck_size = max_shuffled_deck_size;
+    serv->gi = NULL;
+    serv->cc.number_arr = NULL;
+
+    listen(serv->listen_socket, listen_qlen);
+    return 1;
+}
+
+#if 0
+static void demonization()
+{
+    int pid;
+
+    close(0);
+    close(1);
+    close(2);
+    open("/dev/null", O_RDONLY);
+    open("/dev/null", O_WRONLY);
+    open("/dev/null", O_WRONLY);
+    chdir("/");
+    pid = fork();
+    if(pid)
+        exit(0);
+    setsid();
+    pid = fork();
+    if(pid)
+        exit(0);
+}
+#endif
+
+int main(int argc, char **argv)
+{
+    unsigned short port;
+    struct server serv;
+
+    if(argc != 2) {
+        fprintf(stderr,
+                "Usage: <port>\n");
+        return 1;
+    }
+#if 0
+    demonization();
+#endif
+    srand(time(NULL));
+#if 0
+    openlog("durak server", 0, LOG_USER);
+    syslog(LOG_INFO, "daemon started");
+#endif
+    port = strtol(argv[1], NULL, 10);
+
+    if(!init_server(&serv, port)) {
+#if 0
+        syslog(LOG_ERR, "server initialization error");
+#endif
+        return 2;
+    }
+    return main_loop(&serv);
+#if 0
+    syslog(LOG_INFO, "server terminated");
+    closelog();
+#endif
+}
-- 
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