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/* SPDX-License-Identifier: GPL-3.0-or-later */
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/*
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* bbs_main
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* - entry and major procedures of user interactive access
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*
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* Copyright (C) 2004-2025 Leaflet <leaflet@leafok.com>
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*/
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#include "article_favor.h"
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#include "article_view_log.h"
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#include "bbs.h"
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#include "bbs_cmd.h"
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#include "bbs_main.h"
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#include "bwf.h"
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#include "common.h"
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#include "database.h"
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#include "editor.h"
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#include "io.h"
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#include "log.h"
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#include "login.h"
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#include "menu.h"
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#include "screen.h"
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#include "section_list.h"
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#include "section_list_display.h"
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#include "trie_dict.h"
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#include "user_list.h"
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#include "user_priv.h"
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#include <errno.h>
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#include <signal.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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int bbs_info()
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{
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prints("欢迎光临 \033[1;33m%s \033[32m[%s] \033[37m( %s )\033[m\r\n",
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BBS_name, BBS_server, APP_INFO);
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return iflush();
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}
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int bbs_welcome(void)
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{
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int u_online = 0;
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int u_anonymous = 0;
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int u_total = 0;
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int u_login_count = 0;
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if (get_user_online_list_count(&u_online, &u_anonymous) < 0)
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{
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log_error("get_user_online_list_count() error\n");
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u_online = 0;
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}
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u_online += u_anonymous;
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u_online++; // current user
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if (BBS_priv.uid == 0)
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{
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u_anonymous++;
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}
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if (get_user_list_count(&u_total) < 0)
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{
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log_error("get_user_list_count() error\n");
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u_total = 0;
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}
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if (get_user_login_count(&u_login_count) < 0)
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{
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log_error("get_user_login_count() error\n");
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u_login_count = 0;
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}
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// Display logo
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display_file(DATA_WELCOME, 2);
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// Display welcome message
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prints("\r\033[1;35m欢迎光临\033[33m 【 %s 】 \033[35mBBS\r\n"
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"\033[32m目前上站人数 [\033[36m%d/%d\033[32m] "
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"匿名游客[\033[36m%d\033[32m] "
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"注册用户数[\033[36m%d/%d\033[32m]\r\n"
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"从 [\033[36m%s\033[32m] 起，累计访问人次：[\033[36m%d\033[32m]\033[m\r\n",
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BBS_name, u_online, BBS_max_client, u_anonymous, u_total,
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BBS_max_user_count, BBS_start_dt, u_login_count);
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iflush();
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return 0;
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}
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int bbs_logout(void)
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{
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MYSQL *db;
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db = db_open();
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if (db == NULL)
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{
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return -1;
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}
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if (user_online_exp(db) < 0)
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{
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return -2;
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}
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if (user_online_del(db) < 0)
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{
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return -3;
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}
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mysql_close(db);
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display_file(DATA_GOODBYE, 1);
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log_common("User [%s] logout, idle for %ld seconds since last input\n", BBS_username, time(NULL) - BBS_last_access_tm);
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return 0;
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}
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int bbs_center()
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{
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int ch;
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time_t t_last_action;
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BBS_last_access_tm = t_last_action = time(NULL);
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clearscr();
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show_top("", BBS_name, "");
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show_active_board();
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show_bottom("");
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display_menu(&bbs_menu);
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iflush();
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while (!SYS_server_exit)
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{
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ch = igetch(100);
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if (ch != KEY_NULL && ch != KEY_TIMEOUT)
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{
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BBS_last_access_tm = time(NULL);
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#ifdef _DEBUG
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log_error("Debug: BBS_last_access_tm is updated\n");
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#endif
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}
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if (bbs_menu.choose_step == 0 && time(NULL) - t_last_action >= 10)
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{
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t_last_action = time(NULL);
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show_active_board();
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show_bottom("");
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display_menu_cursor(&bbs_menu, 1);
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iflush();
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}
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if (user_online_update("MENU") < 0)
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{
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log_error("user_online_update(MENU) error\n");
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}
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switch (ch)
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{
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case KEY_NULL: // broken pipe
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log_error("KEY_NULL\n");
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return 0;
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case KEY_TIMEOUT:
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if (time(NULL) - BBS_last_access_tm >= BBS_max_user_idle_time)
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{
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log_error("User input timeout\n");
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return 0;
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}
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continue;
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case CR:
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default:
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switch (menu_control(&bbs_menu, ch))
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{
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case EXITBBS:
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case EXITMENU:
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return 0;
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case REDRAW:
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t_last_action = time(NULL);
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clearscr();
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show_top("", BBS_name, "");
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show_active_board();
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show_bottom("");
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display_menu(&bbs_menu);
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break;
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case NOREDRAW:
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case UNKNOWN_CMD:
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default:
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break;
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}
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iflush();
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}
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}
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return 0;
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}
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int bbs_charset_select()
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{
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char msg[LINE_BUFFER_LEN];
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int ch;
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snprintf(msg, sizeof(msg),
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"\rChoose character set in 5 seconds [UTF-8, GBK]: [U/g]");
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while (!SYS_server_exit)
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{
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ch = press_any_key_ex(msg, 5);
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switch (ch)
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{
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case KEY_NULL:
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return -1;
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case KEY_TIMEOUT:
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case CR:
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case 'u':
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case 'U':
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return 0;
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case 'g':
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case 'G':
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if (io_conv_init("GBK") < 0)
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{
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log_error("io_conv_init(%s) error\n", "GBK");
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return -1;
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}
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return 0;
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default:
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continue;
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}
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}
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return 0;
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}
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int bbs_main()
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{
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struct sigaction act = {0};
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char msg[LINE_BUFFER_LEN];
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// Set signal handler
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act.sa_handler = SIG_IGN;
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if (sigaction(SIGHUP, &act, NULL) == -1)
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{
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log_error("set signal action of SIGHUP error: %d\n", errno);
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goto cleanup;
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}
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act.sa_handler = SIG_DFL;
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if (sigaction(SIGCHLD, &act, NULL) == -1)
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{
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log_error("set signal action of SIGCHLD error: %d\n", errno);
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goto cleanup;
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}
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// Set data pools in shared memory readonly
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if (set_trie_dict_shm_readonly() < 0)
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{
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goto cleanup;
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}
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if (set_article_block_shm_readonly() < 0)
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{
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goto cleanup;
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}
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if (set_section_list_shm_readonly() < 0)
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{
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goto cleanup;
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}
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if (set_user_list_pool_shm_readonly() < 0)
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{
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goto cleanup;
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}
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// Load menu in shared memory
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if (set_menu_shm_readonly(&bbs_menu) < 0)
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{
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goto cleanup;
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}
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// Set default charset
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if (io_conv_init(BBS_default_charset) < 0)
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{
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log_error("io_conv_init(%s) error\n", BBS_default_charset);
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goto cleanup;
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}
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set_input_echo(0);
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// Set user charset
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bbs_charset_select();
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// System info
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if (bbs_info() < 0)
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{
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goto cleanup;
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}
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// Welcome
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if (bbs_welcome() < 0)
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{
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goto cleanup;
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}
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// User login
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if (SSH_v2)
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{
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snprintf(msg, sizeof(msg), "\033[1m%s 欢迎使用ssh方式访问 \033[1;33m按任意键继续...\033[m", BBS_username);
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press_any_key_ex(msg, 60);
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}
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else if (bbs_login() < 0)
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{
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goto cleanup;
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}
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log_common("User [%s] login\n", BBS_username);
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// Load section aid locations
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if (section_aid_locations_load(BBS_priv.uid) < 0)
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{
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log_error("article_view_log_load() error\n");
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goto cleanup;
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}
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// Load article view log
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if (article_view_log_load(BBS_priv.uid, &BBS_article_view_log, 0) < 0)
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{
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log_error("article_view_log_load() error\n");
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goto cleanup;
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}
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// Load article favorite
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if (article_favor_load(BBS_priv.uid, &BBS_article_favor, 0) < 0)
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{
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log_error("article_favor_load() error\n");
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goto cleanup;
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}
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// Init editor memory pool
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if (editor_memory_pool_init() < 0)
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{
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log_error("editor_memory_pool_init() error\n");
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goto cleanup;
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}
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clearscr();
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// BBS Top 10
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display_file(VAR_BBS_TOP, 1);
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// Main
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bbs_center();
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// Logout
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bbs_logout();
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// Save section aid locations
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if (section_aid_locations_save(BBS_priv.uid) < 0)
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{
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log_error("article_view_log_save() error\n");
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}
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// Save incremental article view log
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if (article_view_log_save_inc(&BBS_article_view_log) < 0)
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{
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log_error("article_view_log_save_inc() error\n");
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}
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// Save incremental article favorite
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if (article_favor_save_inc(&BBS_article_favor) < 0)
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{
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log_error("article_favor_save_inc() error\n");
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}
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cleanup:
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// Cleanup iconv
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io_conv_cleanup();
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// Cleanup editor memory pool
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editor_memory_pool_cleanup();
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// Unload article view log
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article_view_log_unload(&BBS_article_view_log);
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// Unload article favor
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article_favor_unload(&BBS_article_favor);
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// Detach menu in shared memory
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detach_menu_shm(&bbs_menu);
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detach_menu_shm(&top10_menu);
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// Detach data pools shm
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detach_user_list_pool_shm();
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detach_section_list_shm();
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detach_article_block_shm();
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detach_trie_dict_shm();
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// Cleanup BWF
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bwf_unload();
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return 0;
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}
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