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/* SPDX-License-Identifier: GPL-3.0-or-later */
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/*
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* main
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* - entry of server program
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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 "bbs.h"
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#include "common.h"
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#include "file_loader.h"
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#include "init.h"
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#include "io.h"
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#include "log.h"
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#include "menu.h"
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#include "net_server.h"
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#include "section_list_loader.h"
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#include "user_list.h"
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#include <errno.h>
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#include <libgen.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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static void app_help(void)
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{
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fprintf(stderr, "Usage: bbsd [-fhv] [...]\n\n"
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"-f\t--foreground\t\tForce program run in foreground\n"
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"-h\t--help\t\t\tDisplay this help message\n"
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"-v\t--version\t\tDisplay version information\n"
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"\t--display-log\t\tDisplay standard log information\n"
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"\t--display-error-log\tDisplay error log information\n"
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"\n If meet any bug, please report to <leaflet@leafok.com>\n\n");
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}
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static void arg_error(void)
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{
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fprintf(stderr, "Invalid arguments\n");
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app_help();
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}
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int main(int argc, char *argv[])
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{
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char file_path_temp[FILE_PATH_LEN];
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int daemon = 1;
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int std_log_redir = 0;
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int error_log_redir = 0;
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FILE *fp;
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int ret;
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int last_aid;
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struct sigaction act = {0};
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// Parse args
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for (int i = 1; i < argc; i++)
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{
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switch (argv[i][0])
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{
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case '-':
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if (argv[i][1] != '-')
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{
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for (int j = 1; j < strlen(argv[i]); j++)
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{
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switch (argv[i][j])
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{
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case 'f':
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daemon = 0;
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break;
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case 'h':
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app_help();
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return 0;
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case 'v':
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puts(APP_INFO);
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return 0;
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default:
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arg_error();
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return 1;
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}
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}
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}
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else
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{
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if (strcmp(argv[i] + 2, "foreground") == 0)
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{
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daemon = 0;
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break;
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}
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if (strcmp(argv[i] + 2, "help") == 0)
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{
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app_help();
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return 0;
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}
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if (strcmp(argv[i] + 2, "version") == 0)
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{
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puts(APP_INFO);
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return 0;
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}
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if (strcmp(argv[i] + 2, "display-log") == 0)
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{
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std_log_redir = 1;
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}
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if (strcmp(argv[i] + 2, "display-error-log") == 0)
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{
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error_log_redir = 1;
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}
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}
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break;
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}
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}
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// Initialize daemon
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if (daemon)
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{
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init_daemon();
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}
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// Change current dir
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strncpy(file_path_temp, argv[0], sizeof(file_path_temp) - 1);
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file_path_temp[sizeof(file_path_temp) - 1] = '\0';
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if (chdir(dirname(file_path_temp)) < 0)
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{
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fprintf(stderr, "chdir(%s) error: %d\n", dirname(file_path_temp), errno);
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return -1;
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}
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if (chdir("..") < 0)
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{
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fprintf(stderr, "chdir(..) error: %d\n", errno);
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return -1;
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}
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// Initialize log
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if (log_begin(LOG_FILE_INFO, LOG_FILE_ERROR) < 0)
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{
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return -1;
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}
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if ((!daemon) && std_log_redir)
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{
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log_common_redir(STDERR_FILENO);
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}
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if ((!daemon) && error_log_redir)
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{
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log_error_redir(STDERR_FILENO);
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}
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log_common("Starting %s\n", APP_INFO);
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// Load configuration
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if (load_conf(CONF_BBSD) < 0)
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{
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return -2;
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}
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// Check article cache dir
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ret = mkdir(VAR_ARTICLE_CACHE_DIR, 0750);
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if (ret == -1 && errno != EEXIST)
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{
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log_error("mkdir(%s) error (%d)\n", VAR_ARTICLE_CACHE_DIR, errno);
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goto cleanup;
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}
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// Check section aid location dir
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ret = mkdir(VAR_SECTION_AID_LOC_DIR, 0750);
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if (ret == -1 && errno != EEXIST)
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{
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log_error("mkdir(%s) error (%d)\n", VAR_SECTION_AID_LOC_DIR, errno);
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goto cleanup;
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}
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// Initialize data pools
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if ((fp = fopen(VAR_ARTICLE_BLOCK_SHM, "w")) == NULL)
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{
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log_error("fopen(%s) error\n", VAR_ARTICLE_BLOCK_SHM);
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goto cleanup;
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}
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fclose(fp);
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if ((fp = fopen(VAR_SECTION_LIST_SHM, "w")) == NULL)
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{
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log_error("fopen(%s) error\n", VAR_SECTION_LIST_SHM);
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goto cleanup;
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}
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fclose(fp);
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if ((fp = fopen(VAR_TRIE_DICT_SHM, "w")) == NULL)
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{
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log_error("fopen(%s) error\n", VAR_TRIE_DICT_SHM);
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goto cleanup;
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}
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fclose(fp);
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if ((fp = fopen(VAR_USER_LIST_SHM, "w")) == NULL)
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{
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log_error("fopen(%s) error\n", VAR_USER_LIST_SHM);
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goto cleanup;
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}
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fclose(fp);
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if (trie_dict_init(VAR_TRIE_DICT_SHM, TRIE_NODE_PER_POOL) < 0)
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{
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printf("trie_dict_init(%s, %d) error\n", VAR_TRIE_DICT_SHM, TRIE_NODE_PER_POOL);
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goto cleanup;
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}
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if (article_block_init(VAR_ARTICLE_BLOCK_SHM, BBS_article_limit_per_section * BBS_max_section / ARTICLE_PER_BLOCK) < 0)
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{
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log_error("article_block_init(%s, %d) error\n", VAR_ARTICLE_BLOCK_SHM, BBS_article_limit_per_section * BBS_max_section / ARTICLE_PER_BLOCK);
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goto cleanup;
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}
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if (section_list_init(VAR_SECTION_LIST_SHM) < 0)
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{
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log_error("section_list_pool_init(%s) error\n", VAR_SECTION_LIST_SHM);
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goto cleanup;
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}
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// Load BBS cmd
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if (load_cmd() < 0)
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{
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goto cleanup;
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}
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// Load menus
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if (load_menu(&bbs_menu, CONF_MENU) < 0)
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{
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log_error("load_menu(%s) error\n", CONF_MENU);
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goto cleanup;
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}
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if (load_menu(&top10_menu, CONF_TOP10_MENU) < 0)
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{
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log_error("load_menu(%s) error\n", CONF_TOP10_MENU);
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goto cleanup;
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}
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top10_menu.allow_exit = 1;
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// Load data files
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if (file_loader_init() < 0)
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{
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log_error("file_loader_init() error\n");
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goto cleanup;
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}
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for (int i = 0; i < data_files_load_startup_count; i++)
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{
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if (load_file(data_files_load_startup[i]) < 0)
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{
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log_error("load_file(%s) error\n", data_files_load_startup[i]);
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}
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}
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// Load user_list and online_user_list
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if (user_list_pool_init(VAR_USER_LIST_SHM) < 0)
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{
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log_error("user_list_pool_init(%s) error\n", VAR_USER_LIST_SHM);
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goto cleanup;
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}
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if (user_list_pool_reload(0) < 0)
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{
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log_error("user_list_pool_reload(all_user) error\n");
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goto cleanup;
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}
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if (user_list_pool_reload(1) < 0)
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{
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log_error("user_list_pool_reload(online_user) error\n");
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goto cleanup;
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}
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// Load section config and gen_ex
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if (load_section_config_from_db(1) < 0)
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{
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log_error("load_section_config_from_db(0) error\n");
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goto cleanup;
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}
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set_last_article_op_log_from_db();
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last_aid = 0;
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// Load section articles
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do
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{
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if ((ret = append_articles_from_db(last_aid + 1, 1, LOAD_ARTICLE_COUNT_LIMIT)) < 0)
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{
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log_error("append_articles_from_db(0, 1, %d) error\n", LOAD_ARTICLE_COUNT_LIMIT);
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goto cleanup;
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}
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last_aid = article_block_last_aid();
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} while (ret == LOAD_ARTICLE_COUNT_LIMIT);
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log_common("Initially load %d articles, last_aid = %d\n", article_block_article_count(), article_block_last_aid());
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if ((ret = user_stat_update()) < 0)
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{
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log_error("user_stat_update() error\n");
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goto cleanup;
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}
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// Set signal handler
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act.sa_handler = sig_hup_handler;
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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_chld_handler;
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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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act.sa_handler = sig_term_handler;
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if (sigaction(SIGTERM, &act, NULL) == -1)
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{
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log_error("set signal action of SIGTERM error: %d\n", errno);
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goto cleanup;
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}
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// Launch section_list_loader process
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if (section_list_loader_launch() < 0)
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{
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log_error("section_list_loader_launch() error\n");
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goto cleanup;
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}
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// Initialize socket server
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net_server(BBS_address, BBS_port);
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cleanup:
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// Cleanup loaded data files
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file_loader_cleanup();
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// Cleanup menu
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unload_menu(&bbs_menu);
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unload_menu(&top10_menu);
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// Cleanup data pools
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section_list_cleanup();
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article_block_cleanup();
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trie_dict_cleanup();
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user_list_pool_cleanup();
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if (unlink(VAR_ARTICLE_BLOCK_SHM) < 0)
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{
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log_error("unlink(%s) error\n", VAR_ARTICLE_BLOCK_SHM);
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}
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if (unlink(VAR_SECTION_LIST_SHM) < 0)
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{
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log_error("unlink(%s) error\n", VAR_SECTION_LIST_SHM);
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}
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if (unlink(VAR_TRIE_DICT_SHM) < 0)
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{
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log_error("unlink(%s) error\n", VAR_TRIE_DICT_SHM);
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}
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if (unlink(VAR_USER_LIST_SHM) < 0)
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{
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log_error("unlink(%s) error\n", VAR_SECTION_LIST_SHM);
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}
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log_common("Main process exit normally\n");
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log_end();
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return 0;
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}
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