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/* SPDX-License-Identifier: GPL-3.0-or-later */
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/*
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* bbs_net
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* - user interactive feature of site shuttle
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*
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* Copyright (C) 2004-2025 Leaflet <leaflet@leafok.com>
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "bbs.h"
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#include "bbs_net.h"
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#include "common.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 "str_process.h"
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#include <errno.h>
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#include <fcntl.h>
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#include <netdb.h>
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#include <stdarg.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 <time.h>
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#include <unistd.h>
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#include <arpa/inet.h>
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#include <ctype.h>
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#include <libssh/libssh.h>
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#include <libssh/server.h>
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#include <libssh/callbacks.h>
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#include <netinet/in.h>
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#include <netinet/ip.h>
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#include <sys/select.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#ifdef HAVE_SYS_EPOLL_H
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#include <sys/epoll.h>
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#else
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#include <poll.h>
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#endif
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static const char MENU_CONF_DELIM[] = " \t\r\n";
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enum _bbs_net_constant_t
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{
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MAX_PROCESS_BAR_LEN = 30,
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MAXSTATION = 26 * 2,
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STATION_PER_LINE = 4,
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USERNAME_MAX_LEN = 20,
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PASSWORD_MAX_LEN = 20,
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SSH_CONNECT_TIMEOUT = 5, // seconds
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};
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struct _bbsnet_conf
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{
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char org_name[40];
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char site_name[40];
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char host_name[IP_ADDR_LEN];
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char port[6];
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int8_t use_ssh;
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char charset[CHARSET_MAX_LEN + 1];
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} bbsnet_conf[MAXSTATION];
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static MENU_SET bbsnet_menu;
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static void unload_bbsnet_conf(void);
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static int load_bbsnet_conf(const char *file_config)
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{
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FILE *fp;
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MENU *p_menu;
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MENU_ITEM *p_menu_item;
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MENU_ITEM_ID menu_item_id;
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char line[LINE_BUFFER_LEN], *t1, *t2, *t3, *t4, *t5, *t6, *saveptr;
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int port;
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unload_bbsnet_conf();
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bbsnet_menu.p_menu_pool = calloc(1, sizeof(MENU));
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if (bbsnet_menu.p_menu_pool == NULL)
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{
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log_error("calloc(p_menu_pool) error\n");
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return -1;
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}
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bbsnet_menu.menu_count = 1;
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bbsnet_menu.p_menu_item_pool = calloc(MAXSTATION, sizeof(MENU_ITEM));
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if (bbsnet_menu.p_menu_item_pool == NULL)
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{
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log_error("calloc(p_menu_item_pool) error\n");
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unload_bbsnet_conf();
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return -1;
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}
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bbsnet_menu.menu_item_count = MAXSTATION;
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p_menu = (MENU *)get_menu_by_id(&bbsnet_menu, 0);
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strncpy(p_menu->name, "BBSNET", sizeof(p_menu->name) - 1);
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p_menu->name[sizeof(p_menu->name) - 1] = '\0';
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p_menu->title.show = 0;
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p_menu->screen_show = 0;
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fp = fopen(file_config, "r");
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if (fp == NULL)
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{
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unload_bbsnet_conf();
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return -2;
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}
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menu_item_id = 0;
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while (fgets(line, sizeof(line), fp) && menu_item_id < MAXSTATION)
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{
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t1 = strtok_r(line, MENU_CONF_DELIM, &saveptr);
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t2 = strtok_r(NULL, MENU_CONF_DELIM, &saveptr);
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t3 = strtok_r(NULL, MENU_CONF_DELIM, &saveptr);
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t4 = strtok_r(NULL, MENU_CONF_DELIM, &saveptr);
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t5 = strtok_r(NULL, MENU_CONF_DELIM, &saveptr);
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t6 = strtok_r(NULL, MENU_CONF_DELIM, &saveptr);
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if (t1 == NULL || t2 == NULL || t3 == NULL || t4 == NULL ||
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t5 == NULL || t6 == NULL || line[0] == '#' || line[0] == '*')
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{
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continue;
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}
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strncpy(bbsnet_conf[menu_item_id].site_name, t2, sizeof(bbsnet_conf[menu_item_id].site_name) - 1);
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bbsnet_conf[menu_item_id].site_name[sizeof(bbsnet_conf[menu_item_id].site_name) - 1] = '\0';
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strncpy(bbsnet_conf[menu_item_id].org_name, t1, sizeof(bbsnet_conf[menu_item_id].org_name) - 1);
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bbsnet_conf[menu_item_id].org_name[sizeof(bbsnet_conf[menu_item_id].org_name) - 1] = '\0';
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strncpy(bbsnet_conf[menu_item_id].host_name, t3, sizeof(bbsnet_conf[menu_item_id].host_name) - 1);
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bbsnet_conf[menu_item_id].host_name[sizeof(bbsnet_conf[menu_item_id].host_name) - 1] = '\0';
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port = atoi(t4);
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if (port <= 0 || port > 65535)
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{
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log_error("Invalid port value %d of menu item %d\n", port, menu_item_id);
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fclose(fp);
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unload_bbsnet_conf();
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return -3;
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}
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strncpy(bbsnet_conf[menu_item_id].port, t4, sizeof(bbsnet_conf[menu_item_id].port) - 1);
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bbsnet_conf[menu_item_id].port[sizeof(bbsnet_conf[menu_item_id].port) - 1] = '\0';
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bbsnet_conf[menu_item_id].use_ssh = (toupper(t5[0]) == 'Y');
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strncpy(bbsnet_conf[menu_item_id].charset, t6, sizeof(bbsnet_conf[menu_item_id].charset) - 1);
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bbsnet_conf[menu_item_id].charset[sizeof(bbsnet_conf[menu_item_id].charset) - 1] = '\0';
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p_menu_item = get_menu_item_by_id(&bbsnet_menu, menu_item_id);
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if (p_menu_item == NULL)
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{
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log_error("get_menu_item_by_id(%d) return NULL pointer\n", menu_item_id);
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fclose(fp);
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unload_bbsnet_conf();
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return -3;
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}
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p_menu_item->row = (int16_t)(2 + menu_item_id / STATION_PER_LINE);
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p_menu_item->col = (int16_t)(5 + menu_item_id % STATION_PER_LINE * 20);
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snprintf(p_menu_item->action, sizeof(p_menu_item->action), "%d", (int16_t)menu_item_id);
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p_menu_item->submenu = 0;
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p_menu_item->priv = 0;
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p_menu_item->level = 0;
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p_menu_item->name[0] =
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(char)(menu_item_id < MAXSTATION / 2 ? 'A' + menu_item_id : 'a' + menu_item_id);
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p_menu_item->name[1] = '\0';
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snprintf(p_menu_item->text, sizeof(p_menu_item->text), "\033[1;36m%c.\033[m %s",
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p_menu_item->name[0], bbsnet_conf[menu_item_id].site_name);
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p_menu->items[p_menu->item_count] = menu_item_id;
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p_menu->item_count++;
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menu_item_id++;
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}
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bbsnet_menu.menu_item_count = (int16_t)menu_item_id;
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bbsnet_menu.menu_id_path[0] = 0;
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bbsnet_menu.menu_item_pos[0] = 0;
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bbsnet_menu.choose_step = 0;
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fclose(fp);
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return 0;
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}
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static void unload_bbsnet_conf(void)
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{
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bbsnet_menu.menu_count = 0;
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bbsnet_menu.menu_item_count = 0;
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if (bbsnet_menu.p_menu_pool)
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{
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free(bbsnet_menu.p_menu_pool);
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bbsnet_menu.p_menu_pool = NULL;
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}
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if (bbsnet_menu.p_menu_item_pool)
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{
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free(bbsnet_menu.p_menu_item_pool);
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bbsnet_menu.p_menu_item_pool = NULL;
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}
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}
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static void process_bar(int n, int len)
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{
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char buf[LINE_BUFFER_LEN];
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char buf2[LINE_BUFFER_LEN];
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if (len <= 0)
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{
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len = 1;
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}
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else if (len > LINE_BUFFER_LEN)
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{
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| 217 |
len = LINE_BUFFER_LEN - 1;
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}
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if (n < 0)
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{
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n = 0;
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}
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else if (n > len)
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{
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| 225 |
n = len;
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}
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moveto(4, 1);
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prints(" ------------------------------ \r\n");
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snprintf(buf, sizeof(buf), " %3d%% ", n * 100 / len);
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memcpy(buf2, buf, (size_t)n);
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| 232 |
buf2[n] = '\0';
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prints("|\033[46m%s\033[44m%s\033[m|\r\n", buf2, buf + n);
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prints(" ------------------------------ \r\n");
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| 235 |
iflush();
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}
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| 237 |
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| 238 |
static int bbsnet_connect(int n)
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| 239 |
{
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| 240 |
int sock = -1;
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| 241 |
int ret;
|
| 242 |
int loop;
|
| 243 |
int error;
|
| 244 |
int sock_connected = 0;
|
| 245 |
int flags_sock = -1;
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| 246 |
int flags_stdin = -1;
|
| 247 |
int flags_stdout = -1;
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| 248 |
struct sockaddr_in sin;
|
| 249 |
char input_buf[LINE_BUFFER_LEN];
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| 250 |
char output_buf[LINE_BUFFER_LEN];
|
| 251 |
int input_buf_len = 0;
|
| 252 |
int output_buf_len = 0;
|
| 253 |
int input_buf_offset = 0;
|
| 254 |
int output_buf_offset = 0;
|
| 255 |
char input_conv[LINE_BUFFER_LEN * 2];
|
| 256 |
char output_conv[LINE_BUFFER_LEN * 2];
|
| 257 |
int input_conv_len = 0;
|
| 258 |
int output_conv_len = 0;
|
| 259 |
int input_conv_offset = 0;
|
| 260 |
int output_conv_offset = 0;
|
| 261 |
iconv_t input_cd = (iconv_t)(-1);
|
| 262 |
iconv_t output_cd = (iconv_t)(-1);
|
| 263 |
char tocode[CHARSET_MAX_LEN + 20];
|
| 264 |
|
| 265 |
#ifdef HAVE_SYS_EPOLL_H
|
| 266 |
struct epoll_event ev, events[MAX_EVENTS];
|
| 267 |
int epollfd = -1;
|
| 268 |
#else
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| 269 |
struct pollfd pfds[3];
|
| 270 |
#endif
|
| 271 |
|
| 272 |
int nfds;
|
| 273 |
int stdin_read_wait = 0;
|
| 274 |
int stdout_write_wait = 0;
|
| 275 |
int sock_read_wait = 0;
|
| 276 |
int sock_write_wait = 0;
|
| 277 |
struct addrinfo hints, *res = NULL;
|
| 278 |
int tos;
|
| 279 |
char remote_addr[INET_ADDRSTRLEN];
|
| 280 |
int remote_port;
|
| 281 |
char local_addr[INET_ADDRSTRLEN];
|
| 282 |
int local_port;
|
| 283 |
socklen_t sock_len;
|
| 284 |
time_t t_begin;
|
| 285 |
time_t t_used = time(NULL);
|
| 286 |
struct tm *tm_used;
|
| 287 |
int ch;
|
| 288 |
char remote_user[USERNAME_MAX_LEN + 1];
|
| 289 |
char remote_pass[PASSWORD_MAX_LEN + 1];
|
| 290 |
ssh_session session = NULL;
|
| 291 |
ssh_channel channel = NULL;
|
| 292 |
int ssh_process_config = 0;
|
| 293 |
int ssh_log_level = SSH_LOG_NOLOG;
|
| 294 |
|
| 295 |
if (user_online_update("BBS_NET") < 0)
|
| 296 |
{
|
| 297 |
log_error("user_online_update(BBS_NET) error\n");
|
| 298 |
}
|
| 299 |
|
| 300 |
if (bbsnet_conf[n].use_ssh)
|
| 301 |
{
|
| 302 |
clearscr();
|
| 303 |
|
| 304 |
if (!SSH_v2)
|
| 305 |
{
|
| 306 |
moveto(1, 1);
|
| 307 |
prints("只有在以SSH方式登陆本站时，才能使用SSH站点穿梭。");
|
| 308 |
press_any_key();
|
| 309 |
return 0;
|
| 310 |
}
|
| 311 |
|
| 312 |
moveto(1, 1);
|
| 313 |
prints("通过SSH方式连接[%s]...", bbsnet_conf[n].site_name);
|
| 314 |
moveto(2, 1);
|
| 315 |
prints("请输入用户名: ");
|
| 316 |
iflush();
|
| 317 |
if (str_input(remote_user, sizeof(remote_user), DOECHO) < 0)
|
| 318 |
{
|
| 319 |
return -1;
|
| 320 |
}
|
| 321 |
if (remote_user[0] == '\0')
|
| 322 |
{
|
| 323 |
return 0;
|
| 324 |
}
|
| 325 |
|
| 326 |
moveto(3, 1);
|
| 327 |
prints("请输入密码: ");
|
| 328 |
iflush();
|
| 329 |
if (str_input(remote_pass, sizeof(remote_pass), NOECHO) < 0)
|
| 330 |
{
|
| 331 |
return -1;
|
| 332 |
}
|
| 333 |
if (remote_pass[0] == '\0')
|
| 334 |
{
|
| 335 |
return 0;
|
| 336 |
}
|
| 337 |
}
|
| 338 |
|
| 339 |
clearscr();
|
| 340 |
|
| 341 |
moveto(1, 1);
|
| 342 |
prints("\033[1;32m正在测试往 %s (%s) 的连接，请稍候... \033[m\r\n",
|
| 343 |
bbsnet_conf[n].site_name, bbsnet_conf[n].host_name);
|
| 344 |
iflush();
|
| 345 |
|
| 346 |
memset(&hints, 0, sizeof(hints));
|
| 347 |
hints.ai_family = AF_INET;
|
| 348 |
hints.ai_socktype = SOCK_STREAM;
|
| 349 |
hints.ai_protocol = IPPROTO_TCP;
|
| 350 |
|
| 351 |
if ((ret = getaddrinfo(BBS_address, NULL, &hints, &res)) != 0)
|
| 352 |
{
|
| 353 |
log_error("getaddrinfo() error (%d)\n", ret);
|
| 354 |
goto cleanup;
|
| 355 |
}
|
| 356 |
|
| 357 |
if (inet_ntop(AF_INET, &(((struct sockaddr_in *)res->ai_addr)->sin_addr.s_addr), local_addr, sizeof(local_addr)) == NULL)
|
| 358 |
{
|
| 359 |
log_error("inet_ntop() error (%d)\n", errno);
|
| 360 |
goto cleanup;
|
| 361 |
}
|
| 362 |
local_port = ntohs(((struct sockaddr_in *)res->ai_addr)->sin_port);
|
| 363 |
|
| 364 |
sock = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
|
| 365 |
if (sock < 0)
|
| 366 |
{
|
| 367 |
log_error("socket() error (%d)\n", errno);
|
| 368 |
goto cleanup;
|
| 369 |
}
|
| 370 |
|
| 371 |
if (bind(sock, res->ai_addr, res->ai_addrlen) < 0)
|
| 372 |
{
|
| 373 |
log_error("bind(%s:%u) error (%d)\n", local_addr, local_port, errno);
|
| 374 |
goto cleanup;
|
| 375 |
}
|
| 376 |
|
| 377 |
freeaddrinfo(res);
|
| 378 |
res = NULL;
|
| 379 |
|
| 380 |
memset(&hints, 0, sizeof(hints));
|
| 381 |
hints.ai_family = AF_INET;
|
| 382 |
hints.ai_flags = AI_NUMERICSERV;
|
| 383 |
hints.ai_socktype = SOCK_STREAM;
|
| 384 |
hints.ai_protocol = IPPROTO_TCP;
|
| 385 |
|
| 386 |
if ((ret = getaddrinfo(bbsnet_conf[n].host_name, bbsnet_conf[n].port, &hints, &res)) != 0)
|
| 387 |
{
|
| 388 |
log_error("getaddrinfo() error (%d)\n", ret);
|
| 389 |
prints("\033[1;31m查找主机名失败！\033[m\r\n");
|
| 390 |
press_any_key();
|
| 391 |
goto cleanup;
|
| 392 |
}
|
| 393 |
|
| 394 |
if (inet_ntop(AF_INET, &(((struct sockaddr_in *)res->ai_addr)->sin_addr.s_addr), remote_addr, sizeof(remote_addr)) == NULL)
|
| 395 |
{
|
| 396 |
log_error("inet_ntop() error (%d)\n", errno);
|
| 397 |
goto cleanup;
|
| 398 |
}
|
| 399 |
remote_port = ntohs(((struct sockaddr_in *)res->ai_addr)->sin_port);
|
| 400 |
|
| 401 |
prints("\033[1;32m穿梭进度条提示您当前已使用的时间，按\033[1;33mCtrl+C\033[1;32m中断。\033[m\r\n");
|
| 402 |
process_bar(0, MAX_PROCESS_BAR_LEN);
|
| 403 |
|
| 404 |
// Set socket as non-blocking
|
| 405 |
if ((flags_sock = fcntl(sock, F_GETFL, 0)) == -1)
|
| 406 |
{
|
| 407 |
log_error("fcntl(F_GETFL) error (%d)\n", errno);
|
| 408 |
goto cleanup;
|
| 409 |
}
|
| 410 |
if ((fcntl(sock, F_SETFL, flags_sock | O_NONBLOCK)) == -1)
|
| 411 |
{
|
| 412 |
log_error("fcntl(F_SETFL) error (%d)\n", errno);
|
| 413 |
goto cleanup;
|
| 414 |
}
|
| 415 |
|
| 416 |
// Set STDIN/STDOUT as non-blocking
|
| 417 |
if ((flags_stdin = fcntl(STDIN_FILENO, F_GETFL, 0)) == -1)
|
| 418 |
{
|
| 419 |
log_error("fcntl(F_GETFL) error (%d)\n", errno);
|
| 420 |
goto cleanup;
|
| 421 |
}
|
| 422 |
if ((flags_stdout = fcntl(STDOUT_FILENO, F_GETFL, 0)) == -1)
|
| 423 |
{
|
| 424 |
log_error("fcntl(F_GETFL) error (%d)\n", errno);
|
| 425 |
goto cleanup;
|
| 426 |
}
|
| 427 |
if ((fcntl(STDIN_FILENO, F_SETFL, flags_stdin | O_NONBLOCK)) == -1)
|
| 428 |
{
|
| 429 |
log_error("fcntl(F_SETFL) error (%d)\n", errno);
|
| 430 |
goto cleanup;
|
| 431 |
}
|
| 432 |
if ((fcntl(STDOUT_FILENO, F_SETFL, flags_stdout | O_NONBLOCK)) == -1)
|
| 433 |
{
|
| 434 |
log_error("fcntl(F_SETFL) error (%d)\n", errno);
|
| 435 |
goto cleanup;
|
| 436 |
}
|
| 437 |
|
| 438 |
#ifdef HAVE_SYS_EPOLL_H
|
| 439 |
epollfd = epoll_create1(0);
|
| 440 |
if (epollfd < 0)
|
| 441 |
{
|
| 442 |
log_error("epoll_create1() error (%d)\n", errno);
|
| 443 |
goto cleanup;
|
| 444 |
}
|
| 445 |
|
| 446 |
ev.events = EPOLLOUT | EPOLLET;
|
| 447 |
ev.data.fd = sock;
|
| 448 |
if (epoll_ctl(epollfd, EPOLL_CTL_ADD, sock, &ev) == -1)
|
| 449 |
{
|
| 450 |
log_error("epoll_ctl(socket) error (%d)\n", errno);
|
| 451 |
goto cleanup;
|
| 452 |
}
|
| 453 |
|
| 454 |
ev.events = EPOLLIN | EPOLLET;
|
| 455 |
ev.data.fd = STDIN_FILENO;
|
| 456 |
if (epoll_ctl(epollfd, EPOLL_CTL_ADD, STDIN_FILENO, &ev) == -1)
|
| 457 |
{
|
| 458 |
log_error("epoll_ctl(STDIN_FILENO) error (%d)\n", errno);
|
| 459 |
goto cleanup;
|
| 460 |
}
|
| 461 |
#endif
|
| 462 |
|
| 463 |
while (!SYS_server_exit)
|
| 464 |
{
|
| 465 |
if ((ret = connect(sock, res->ai_addr, res->ai_addrlen)) < 0)
|
| 466 |
{
|
| 467 |
if (errno == EAGAIN || errno == EALREADY || errno == EINPROGRESS)
|
| 468 |
{
|
| 469 |
// Use select / epoll to check writability of the socket,
|
| 470 |
// then use getsockopt to check the status of the socket.
|
| 471 |
// See man connect(2)
|
| 472 |
break;
|
| 473 |
}
|
| 474 |
else if (errno == EINTR)
|
| 475 |
{
|
| 476 |
continue;
|
| 477 |
}
|
| 478 |
else
|
| 479 |
{
|
| 480 |
log_error("connect(socket) error (%d)\n", errno);
|
| 481 |
prints("\033[1;31m连接失败！\033[m\r\n");
|
| 482 |
press_any_key();
|
| 483 |
goto cleanup;
|
| 484 |
}
|
| 485 |
}
|
| 486 |
}
|
| 487 |
|
| 488 |
for (int j = 0; j < MAX_PROCESS_BAR_LEN && !sock_connected && !SYS_server_exit; j++)
|
| 489 |
{
|
| 490 |
#ifdef HAVE_SYS_EPOLL_H
|
| 491 |
nfds = epoll_wait(epollfd, events, MAX_EVENTS, 500); // 0.5 second
|
| 492 |
ret = nfds;
|
| 493 |
#else
|
| 494 |
pfds[0].fd = sock;
|
| 495 |
pfds[0].events = POLLOUT;
|
| 496 |
pfds[1].fd = STDIN_FILENO;
|
| 497 |
pfds[1].events = POLLIN;
|
| 498 |
nfds = 2;
|
| 499 |
ret = poll(pfds, (nfds_t)nfds, 500); // 0.5 second
|
| 500 |
#endif
|
| 501 |
|
| 502 |
if (ret < 0)
|
| 503 |
{
|
| 504 |
if (errno != EINTR)
|
| 505 |
{
|
| 506 |
#ifdef HAVE_SYS_EPOLL_H
|
| 507 |
log_error("epoll_wait() error (%d)\n", errno);
|
| 508 |
#else
|
| 509 |
log_error("poll() error (%d)\n", errno);
|
| 510 |
#endif
|
| 511 |
break;
|
| 512 |
}
|
| 513 |
}
|
| 514 |
else if (ret == 0) // timeout
|
| 515 |
{
|
| 516 |
process_bar(j + 1, MAX_PROCESS_BAR_LEN);
|
| 517 |
}
|
| 518 |
else // ret > 0
|
| 519 |
{
|
| 520 |
for (int i = 0; i < nfds; i++)
|
| 521 |
{
|
| 522 |
#ifdef HAVE_SYS_EPOLL_H
|
| 523 |
if (events[i].data.fd == sock)
|
| 524 |
#else
|
| 525 |
if (pfds[i].fd == sock && (pfds[i].revents & POLLOUT))
|
| 526 |
#endif
|
| 527 |
{
|
| 528 |
socklen_t len = sizeof(error);
|
| 529 |
if (getsockopt(sock, SOL_SOCKET, SO_ERROR, &error, &len) < 0)
|
| 530 |
{
|
| 531 |
log_error("getsockopt() error (%d) !\n", errno);
|
| 532 |
goto cleanup;
|
| 533 |
}
|
| 534 |
if (error == 0)
|
| 535 |
{
|
| 536 |
sock_connected = 1;
|
| 537 |
}
|
| 538 |
}
|
| 539 |
#ifdef HAVE_SYS_EPOLL_H
|
| 540 |
else if (events[i].data.fd == STDIN_FILENO)
|
| 541 |
#else
|
| 542 |
else if (pfds[i].fd == STDIN_FILENO && (pfds[i].revents & POLLIN))
|
| 543 |
#endif
|
| 544 |
{
|
| 545 |
do
|
| 546 |
{
|
| 547 |
ch = igetch(0);
|
| 548 |
} while (ch == 0);
|
| 549 |
if (ch == Ctrl('C') || ch == KEY_ESC)
|
| 550 |
{
|
| 551 |
goto cleanup;
|
| 552 |
}
|
| 553 |
}
|
| 554 |
}
|
| 555 |
}
|
| 556 |
}
|
| 557 |
if (SYS_server_exit)
|
| 558 |
{
|
| 559 |
goto cleanup;
|
| 560 |
}
|
| 561 |
if (!sock_connected)
|
| 562 |
{
|
| 563 |
prints("\033[1;31m连接失败！\033[m\r\n");
|
| 564 |
press_any_key();
|
| 565 |
goto cleanup;
|
| 566 |
}
|
| 567 |
|
| 568 |
tos = IPTOS_LOWDELAY;
|
| 569 |
if (setsockopt(sock, IPPROTO_IP, IP_TOS, &tos, sizeof(tos)) < 0)
|
| 570 |
{
|
| 571 |
log_error("setsockopt IP_TOS=%d error (%d)\n", tos, errno);
|
| 572 |
}
|
| 573 |
|
| 574 |
sock_len = sizeof(sin);
|
| 575 |
if (getsockname(sock, (struct sockaddr *)&sin, &sock_len) < 0)
|
| 576 |
{
|
| 577 |
log_error("getsockname() error: %d", errno);
|
| 578 |
goto cleanup;
|
| 579 |
}
|
| 580 |
|
| 581 |
strncpy(local_addr, inet_ntoa(sin.sin_addr), sizeof(local_addr) - 1);
|
| 582 |
local_addr[sizeof(local_addr) - 1] = '\0';
|
| 583 |
local_port = ntohs(sin.sin_port);
|
| 584 |
|
| 585 |
if (bbsnet_conf[n].use_ssh)
|
| 586 |
{
|
| 587 |
session = ssh_new();
|
| 588 |
if (session == NULL)
|
| 589 |
{
|
| 590 |
log_error("ssh_new() error\n");
|
| 591 |
goto cleanup;
|
| 592 |
}
|
| 593 |
|
| 594 |
if (ssh_options_set(session, SSH_OPTIONS_FD, &sock) < 0 ||
|
| 595 |
ssh_options_set(session, SSH_OPTIONS_PROCESS_CONFIG, &ssh_process_config) < 0 ||
|
| 596 |
ssh_options_set(session, SSH_OPTIONS_KNOWNHOSTS, SSH_KNOWN_HOSTS_FILE) < 0 ||
|
| 597 |
ssh_options_set(session, SSH_OPTIONS_HOST, bbsnet_conf[n].host_name) < 0 ||
|
| 598 |
ssh_options_set(session, SSH_OPTIONS_USER, remote_user) < 0 ||
|
| 599 |
ssh_options_set(session, SSH_OPTIONS_HOSTKEYS, "+ssh-rsa") < 0 ||
|
| 600 |
ssh_options_set(session, SSH_OPTIONS_LOG_VERBOSITY, &ssh_log_level) < 0)
|
| 601 |
{
|
| 602 |
log_error("Error setting SSH options: %s\n", ssh_get_error(session));
|
| 603 |
goto cleanup;
|
| 604 |
}
|
| 605 |
|
| 606 |
ssh_set_blocking(session, 0);
|
| 607 |
|
| 608 |
t_begin = time(NULL);
|
| 609 |
ret = SSH_ERROR;
|
| 610 |
while (!SYS_server_exit && time(NULL) - t_begin < SSH_CONNECT_TIMEOUT)
|
| 611 |
{
|
| 612 |
ret = ssh_connect(session);
|
| 613 |
if (ret == SSH_OK)
|
| 614 |
{
|
| 615 |
break;
|
| 616 |
}
|
| 617 |
else if (ret == SSH_AGAIN)
|
| 618 |
{
|
| 619 |
// log_error("ssh_connect() error: SSH_AGAIN\n");
|
| 620 |
}
|
| 621 |
else // if (ret == SSH_ERROR)
|
| 622 |
{
|
| 623 |
log_error("ssh_connect() error: SSH_ERROR\n");
|
| 624 |
goto cleanup;
|
| 625 |
}
|
| 626 |
}
|
| 627 |
if (ret != SSH_OK)
|
| 628 |
{
|
| 629 |
prints("\033[1;31m连接超时！\033[m\r\n");
|
| 630 |
press_any_key();
|
| 631 |
goto cleanup;
|
| 632 |
}
|
| 633 |
|
| 634 |
ret = ssh_session_is_known_server(session);
|
| 635 |
switch (ret)
|
| 636 |
{
|
| 637 |
case SSH_KNOWN_HOSTS_NOT_FOUND:
|
| 638 |
case SSH_KNOWN_HOSTS_UNKNOWN:
|
| 639 |
if (ssh_session_update_known_hosts(session) != SSH_OK)
|
| 640 |
{
|
| 641 |
log_error("ssh_session_update_known_hosts(%s) error\n", bbsnet_conf[n].host_name);
|
| 642 |
prints("\033[1;31m无法添加服务器证书\033[m\r\n");
|
| 643 |
press_any_key();
|
| 644 |
goto cleanup;
|
| 645 |
}
|
| 646 |
log_common("SSH key of (%s) is added into %s\n", bbsnet_conf[n].host_name, SSH_KNOWN_HOSTS_FILE);
|
| 647 |
case SSH_KNOWN_HOSTS_OK:
|
| 648 |
break;
|
| 649 |
case SSH_KNOWN_HOSTS_CHANGED:
|
| 650 |
case SSH_KNOWN_HOSTS_OTHER:
|
| 651 |
log_error("ssh_session_is_known_server(%s) error: %d\n", bbsnet_conf[n].host_name, ret);
|
| 652 |
prints("\033[1;31m服务器证书已变更\033[m\r\n");
|
| 653 |
press_any_key();
|
| 654 |
goto cleanup;
|
| 655 |
}
|
| 656 |
|
| 657 |
ret = SSH_AUTH_ERROR;
|
| 658 |
while (!SYS_server_exit && time(NULL) - t_begin < SSH_CONNECT_TIMEOUT)
|
| 659 |
{
|
| 660 |
ret = ssh_userauth_password(session, NULL, remote_pass);
|
| 661 |
if (ret == SSH_AUTH_SUCCESS)
|
| 662 |
{
|
| 663 |
break;
|
| 664 |
}
|
| 665 |
else if (ret == SSH_AUTH_AGAIN)
|
| 666 |
{
|
| 667 |
// log_error("ssh_userauth_password() error: SSH_AUTH_AGAIN\n");
|
| 668 |
}
|
| 669 |
else if (ret == SSH_AUTH_ERROR)
|
| 670 |
{
|
| 671 |
log_error("ssh_userauth_password() error: SSH_AUTH_ERROR\n");
|
| 672 |
goto cleanup;
|
| 673 |
}
|
| 674 |
else // if (ret == SSH_AUTH_DENIED)
|
| 675 |
{
|
| 676 |
log_error("ssh_userauth_password() error: SSH_AUTH_DENIED\n");
|
| 677 |
prints("\033[1;31m身份验证失败！\033[m\r\n");
|
| 678 |
press_any_key();
|
| 679 |
goto cleanup;
|
| 680 |
}
|
| 681 |
}
|
| 682 |
if (ret != SSH_AUTH_SUCCESS)
|
| 683 |
{
|
| 684 |
prints("\033[1;31m连接超时！\033[m\r\n");
|
| 685 |
press_any_key();
|
| 686 |
goto cleanup;
|
| 687 |
}
|
| 688 |
|
| 689 |
channel = ssh_channel_new(session);
|
| 690 |
if (channel == NULL)
|
| 691 |
{
|
| 692 |
log_error("ssh_channel_new() error\n");
|
| 693 |
goto cleanup;
|
| 694 |
}
|
| 695 |
|
| 696 |
ret = SSH_ERROR;
|
| 697 |
while (!SYS_server_exit && time(NULL) - t_begin < SSH_CONNECT_TIMEOUT)
|
| 698 |
{
|
| 699 |
ret = ssh_channel_open_session(channel);
|
| 700 |
if (ret == SSH_OK)
|
| 701 |
{
|
| 702 |
break;
|
| 703 |
}
|
| 704 |
else if (ret == SSH_AGAIN)
|
| 705 |
{
|
| 706 |
// log_error("ssh_channel_open_session() error: SSH_AGAIN\n");
|
| 707 |
}
|
| 708 |
else // if (ret == SSH_ERROR)
|
| 709 |
{
|
| 710 |
log_error("ssh_channel_open_session() error: SSH_ERROR\n");
|
| 711 |
goto cleanup;
|
| 712 |
}
|
| 713 |
}
|
| 714 |
if (ret != SSH_OK)
|
| 715 |
{
|
| 716 |
prints("\033[1;31m连接超时！\033[m\r\n");
|
| 717 |
press_any_key();
|
| 718 |
goto cleanup;
|
| 719 |
}
|
| 720 |
|
| 721 |
ret = SSH_ERROR;
|
| 722 |
while (!SYS_server_exit && time(NULL) - t_begin < SSH_CONNECT_TIMEOUT)
|
| 723 |
{
|
| 724 |
ret = ssh_channel_request_pty(channel);
|
| 725 |
if (ret == SSH_OK)
|
| 726 |
{
|
| 727 |
break;
|
| 728 |
}
|
| 729 |
else if (ret == SSH_AGAIN)
|
| 730 |
{
|
| 731 |
// log_error("ssh_channel_request_pty() error: SSH_AGAIN\n");
|
| 732 |
}
|
| 733 |
else // if (ret == SSH_ERROR)
|
| 734 |
{
|
| 735 |
log_error("ssh_channel_request_pty() error: SSH_ERROR\n");
|
| 736 |
goto cleanup;
|
| 737 |
}
|
| 738 |
}
|
| 739 |
if (ret != SSH_OK)
|
| 740 |
{
|
| 741 |
prints("\033[1;31m连接超时！\033[m\r\n");
|
| 742 |
press_any_key();
|
| 743 |
goto cleanup;
|
| 744 |
}
|
| 745 |
|
| 746 |
ret = SSH_ERROR;
|
| 747 |
while (!SYS_server_exit && time(NULL) - t_begin < SSH_CONNECT_TIMEOUT)
|
| 748 |
{
|
| 749 |
ret = ssh_channel_request_shell(channel);
|
| 750 |
if (ret == SSH_OK)
|
| 751 |
{
|
| 752 |
break;
|
| 753 |
}
|
| 754 |
else if (ret == SSH_AGAIN)
|
| 755 |
{
|
| 756 |
// log_error("ssh_channel_request_shell() error: SSH_AGAIN\n");
|
| 757 |
}
|
| 758 |
else // if (ret == SSH_ERROR)
|
| 759 |
{
|
| 760 |
log_error("ssh_channel_request_shell() error: SSH_ERROR\n");
|
| 761 |
goto cleanup;
|
| 762 |
}
|
| 763 |
}
|
| 764 |
if (ret != SSH_OK)
|
| 765 |
{
|
| 766 |
prints("\033[1;31m连接超时！\033[m\r\n");
|
| 767 |
press_any_key();
|
| 768 |
goto cleanup;
|
| 769 |
}
|
| 770 |
}
|
| 771 |
|
| 772 |
prints("\033[1;31m连接成功！\033[m\r\n");
|
| 773 |
iflush();
|
| 774 |
log_common("BBSNET connect to %s:%d from %s:%d by [%s]\n",
|
| 775 |
remote_addr, remote_port, local_addr, local_port, BBS_username);
|
| 776 |
|
| 777 |
snprintf(tocode, sizeof(tocode), "%s%s", bbsnet_conf[n].charset,
|
| 778 |
(strcasecmp(stdio_charset, bbsnet_conf[n].charset) == 0 ? "" : "//IGNORE"));
|
| 779 |
input_cd = iconv_open(tocode, stdio_charset);
|
| 780 |
if (input_cd == (iconv_t)(-1))
|
| 781 |
{
|
| 782 |
log_error("iconv_open(%s->%s) error: %d\n", stdio_charset, tocode, errno);
|
| 783 |
goto cleanup;
|
| 784 |
}
|
| 785 |
|
| 786 |
snprintf(tocode, sizeof(tocode), "%s%s", stdio_charset,
|
| 787 |
(strcasecmp(bbsnet_conf[n].charset, stdio_charset) == 0 ? "" : "//TRANSLIT"));
|
| 788 |
output_cd = iconv_open(tocode, bbsnet_conf[n].charset);
|
| 789 |
if (output_cd == (iconv_t)(-1))
|
| 790 |
{
|
| 791 |
log_error("iconv_open(%s->%s) error: %d\n", bbsnet_conf[n].charset, tocode, errno);
|
| 792 |
goto cleanup;
|
| 793 |
}
|
| 794 |
|
| 795 |
#ifdef HAVE_SYS_EPOLL_H
|
| 796 |
ev.events = EPOLLIN | EPOLLOUT | EPOLLET;
|
| 797 |
ev.data.fd = sock;
|
| 798 |
if (epoll_ctl(epollfd, EPOLL_CTL_MOD, sock, &ev) == -1)
|
| 799 |
{
|
| 800 |
log_error("epoll_ctl(socket) error (%d)\n", errno);
|
| 801 |
goto cleanup;
|
| 802 |
}
|
| 803 |
|
| 804 |
ev.events = EPOLLOUT | EPOLLET;
|
| 805 |
ev.data.fd = STDOUT_FILENO;
|
| 806 |
if (epoll_ctl(epollfd, EPOLL_CTL_ADD, STDOUT_FILENO, &ev) == -1)
|
| 807 |
{
|
| 808 |
log_error("epoll_ctl(STDOUT_FILENO) error (%d)\n", errno);
|
| 809 |
goto cleanup;
|
| 810 |
}
|
| 811 |
#endif
|
| 812 |
|
| 813 |
BBS_last_access_tm = t_used = time(NULL);
|
| 814 |
loop = 1;
|
| 815 |
|
| 816 |
while (loop && !SYS_server_exit)
|
| 817 |
{
|
| 818 |
if (SSH_v2 && ssh_channel_is_closed(SSH_channel))
|
| 819 |
{
|
| 820 |
log_debug("SSH channel is closed\n");
|
| 821 |
loop = 0;
|
| 822 |
break;
|
| 823 |
}
|
| 824 |
|
| 825 |
if (bbsnet_conf[n].use_ssh && ssh_channel_is_closed(channel))
|
| 826 |
{
|
| 827 |
log_debug("Remote SSH channel is closed\n");
|
| 828 |
loop = 0;
|
| 829 |
break;
|
| 830 |
}
|
| 831 |
|
| 832 |
#ifdef HAVE_SYS_EPOLL_H
|
| 833 |
nfds = epoll_wait(epollfd, events, MAX_EVENTS, 100); // 0.1 second
|
| 834 |
ret = nfds;
|
| 835 |
#else
|
| 836 |
pfds[0].fd = STDIN_FILENO;
|
| 837 |
pfds[0].events = POLLIN;
|
| 838 |
pfds[1].fd = sock;
|
| 839 |
pfds[1].events = POLLIN | POLLOUT;
|
| 840 |
pfds[2].fd = STDOUT_FILENO;
|
| 841 |
pfds[2].events = POLLOUT;
|
| 842 |
nfds = 3;
|
| 843 |
ret = poll(pfds, (nfds_t)nfds, 100); // 0.1 second
|
| 844 |
#endif
|
| 845 |
|
| 846 |
if (ret < 0)
|
| 847 |
{
|
| 848 |
if (errno != EINTR)
|
| 849 |
{
|
| 850 |
#ifdef HAVE_SYS_EPOLL_H
|
| 851 |
log_error("epoll_wait() error (%d)\n", errno);
|
| 852 |
#else
|
| 853 |
log_error("poll() error (%d)\n", errno);
|
| 854 |
#endif
|
| 855 |
break;
|
| 856 |
}
|
| 857 |
continue;
|
| 858 |
}
|
| 859 |
else if (ret == 0) // timeout
|
| 860 |
{
|
| 861 |
if (time(NULL) - BBS_last_access_tm >= BBS_max_user_idle_time)
|
| 862 |
{
|
| 863 |
break;
|
| 864 |
}
|
| 865 |
}
|
| 866 |
|
| 867 |
for (int i = 0; i < nfds; i++)
|
| 868 |
{
|
| 869 |
#ifdef HAVE_SYS_EPOLL_H
|
| 870 |
if (events[i].events & (EPOLLHUP | EPOLLERR))
|
| 871 |
#else
|
| 872 |
if (pfds[i].revents & (POLLHUP | POLLERR))
|
| 873 |
#endif
|
| 874 |
{
|
| 875 |
#ifdef HAVE_SYS_EPOLL_H
|
| 876 |
log_debug("FD (%d) error events (%d)\n", events[i].data.fd, events[i].events);
|
| 877 |
#else
|
| 878 |
log_debug("FD (%d) error events (%d)\n", pfds[i].fd, pfds[i].revents);
|
| 879 |
#endif
|
| 880 |
loop = 0;
|
| 881 |
break;
|
| 882 |
}
|
| 883 |
|
| 884 |
#ifdef HAVE_SYS_EPOLL_H
|
| 885 |
if (events[i].data.fd == STDIN_FILENO && (events[i].events & EPOLLIN))
|
| 886 |
#else
|
| 887 |
if (pfds[i].fd == STDIN_FILENO && (pfds[i].revents & POLLIN))
|
| 888 |
#endif
|
| 889 |
{
|
| 890 |
stdin_read_wait = 1;
|
| 891 |
}
|
| 892 |
|
| 893 |
#ifdef HAVE_SYS_EPOLL_H
|
| 894 |
if (events[i].data.fd == sock)
|
| 895 |
#else
|
| 896 |
if (pfds[i].fd == sock)
|
| 897 |
#endif
|
| 898 |
{
|
| 899 |
#ifdef HAVE_SYS_EPOLL_H
|
| 900 |
if (events[i].events & EPOLLIN)
|
| 901 |
#else
|
| 902 |
if (pfds[i].revents & POLLIN)
|
| 903 |
#endif
|
| 904 |
{
|
| 905 |
sock_read_wait = 1;
|
| 906 |
}
|
| 907 |
|
| 908 |
#ifdef HAVE_SYS_EPOLL_H
|
| 909 |
if (events[i].events & EPOLLOUT)
|
| 910 |
#else
|
| 911 |
if (pfds[i].revents & POLLOUT)
|
| 912 |
#endif
|
| 913 |
{
|
| 914 |
sock_write_wait = 1;
|
| 915 |
}
|
| 916 |
}
|
| 917 |
|
| 918 |
#ifdef HAVE_SYS_EPOLL_H
|
| 919 |
if (events[i].data.fd == STDOUT_FILENO && (events[i].events & EPOLLOUT))
|
| 920 |
#else
|
| 921 |
if (pfds[i].fd == STDOUT_FILENO && (pfds[i].revents & POLLOUT))
|
| 922 |
#endif
|
| 923 |
{
|
| 924 |
stdout_write_wait = 1;
|
| 925 |
}
|
| 926 |
}
|
| 927 |
|
| 928 |
if (stdin_read_wait)
|
| 929 |
{
|
| 930 |
while (input_buf_len < sizeof(input_buf) && !SYS_server_exit)
|
| 931 |
{
|
| 932 |
if (SSH_v2)
|
| 933 |
{
|
| 934 |
ret = ssh_channel_read_nonblocking(SSH_channel, input_buf + input_buf_len, sizeof(input_buf) - (uint32_t)input_buf_len, 0);
|
| 935 |
if (ret == SSH_ERROR)
|
| 936 |
{
|
| 937 |
log_debug("ssh_channel_read_nonblocking() error: %s\n", ssh_get_error(SSH_session));
|
| 938 |
loop = 0;
|
| 939 |
break;
|
| 940 |
}
|
| 941 |
else if (ret == SSH_EOF)
|
| 942 |
{
|
| 943 |
stdin_read_wait = 0;
|
| 944 |
loop = 0;
|
| 945 |
break;
|
| 946 |
}
|
| 947 |
else if (ret == 0)
|
| 948 |
{
|
| 949 |
// Send NO-OP to remote server
|
| 950 |
input_buf[input_buf_len] = '\0';
|
| 951 |
input_buf_len++;
|
| 952 |
BBS_last_access_tm = time(NULL);
|
| 953 |
|
| 954 |
stdin_read_wait = 0;
|
| 955 |
break; // Check whether channel is still open
|
| 956 |
}
|
| 957 |
}
|
| 958 |
else
|
| 959 |
{
|
| 960 |
ret = (int)read(STDIN_FILENO, input_buf + input_buf_len, sizeof(input_buf) - (size_t)input_buf_len);
|
| 961 |
}
|
| 962 |
if (ret < 0)
|
| 963 |
{
|
| 964 |
if (errno == EAGAIN || errno == EWOULDBLOCK)
|
| 965 |
{
|
| 966 |
stdin_read_wait = 0;
|
| 967 |
break;
|
| 968 |
}
|
| 969 |
else if (errno == EINTR)
|
| 970 |
{
|
| 971 |
continue;
|
| 972 |
}
|
| 973 |
else
|
| 974 |
{
|
| 975 |
log_error("read(STDIN) error (%d)\n", errno);
|
| 976 |
loop = 0;
|
| 977 |
break;
|
| 978 |
}
|
| 979 |
}
|
| 980 |
else if (ret == 0) // broken pipe
|
| 981 |
{
|
| 982 |
log_debug("read(STDIN) EOF\n");
|
| 983 |
stdin_read_wait = 0;
|
| 984 |
loop = 0;
|
| 985 |
break;
|
| 986 |
}
|
| 987 |
else
|
| 988 |
{
|
| 989 |
input_buf_len += ret;
|
| 990 |
BBS_last_access_tm = time(NULL);
|
| 991 |
|
| 992 |
// Refresh current action while user input
|
| 993 |
if (user_online_update("BBS_NET") < 0)
|
| 994 |
{
|
| 995 |
log_error("user_online_update(BBS_NET) error\n");
|
| 996 |
}
|
| 997 |
|
| 998 |
continue;
|
| 999 |
}
|
| 1000 |
}
|
| 1001 |
}
|
| 1002 |
|
| 1003 |
if (sock_write_wait)
|
| 1004 |
{
|
| 1005 |
if (input_buf_offset < input_buf_len)
|
| 1006 |
{
|
| 1007 |
// For debug
|
| 1008 |
#ifdef _DEBUG
|
| 1009 |
for (int j = input_buf_offset; j < input_buf_len; j++)
|
| 1010 |
{
|
| 1011 |
log_debug("input: <--[%u]\n", (input_buf[j] + 256) % 256);
|
| 1012 |
}
|
| 1013 |
#endif
|
| 1014 |
|
| 1015 |
ret = io_buf_conv(input_cd, input_buf, &input_buf_len, &input_buf_offset, input_conv, sizeof(input_conv), &input_conv_len);
|
| 1016 |
if (ret < 0)
|
| 1017 |
{
|
| 1018 |
log_error("io_buf_conv(input, %d, %d, %d) error\n", input_buf_len, input_buf_offset, input_conv_len);
|
| 1019 |
input_buf_len = input_buf_offset; // Discard invalid sequence
|
| 1020 |
}
|
| 1021 |
|
| 1022 |
// For debug
|
| 1023 |
#ifdef _DEBUG
|
| 1024 |
for (int j = input_conv_offset; j < input_conv_len; j++)
|
| 1025 |
{
|
| 1026 |
log_debug("input_conv: <--[%u]\n", (input_conv[j] + 256) % 256);
|
| 1027 |
}
|
| 1028 |
#endif
|
| 1029 |
}
|
| 1030 |
|
| 1031 |
while (input_conv_offset < input_conv_len && !SYS_server_exit)
|
| 1032 |
{
|
| 1033 |
if (bbsnet_conf[n].use_ssh)
|
| 1034 |
{
|
| 1035 |
ret = ssh_channel_write(channel, input_conv + input_conv_offset, (uint32_t)(input_conv_len - input_conv_offset));
|
| 1036 |
if (ret == SSH_ERROR)
|
| 1037 |
{
|
| 1038 |
log_debug("ssh_channel_write() error: %s\n", ssh_get_error(session));
|
| 1039 |
loop = 0;
|
| 1040 |
break;
|
| 1041 |
}
|
| 1042 |
}
|
| 1043 |
else
|
| 1044 |
{
|
| 1045 |
ret = (int)write(sock, input_conv + input_conv_offset, (size_t)(input_conv_len - input_conv_offset));
|
| 1046 |
}
|
| 1047 |
if (ret < 0)
|
| 1048 |
{
|
| 1049 |
if (errno == EAGAIN || errno == EWOULDBLOCK)
|
| 1050 |
{
|
| 1051 |
sock_write_wait = 0;
|
| 1052 |
break;
|
| 1053 |
}
|
| 1054 |
else if (errno == EINTR)
|
| 1055 |
{
|
| 1056 |
continue;
|
| 1057 |
}
|
| 1058 |
else
|
| 1059 |
{
|
| 1060 |
log_debug("write(socket) error (%d)\n", errno);
|
| 1061 |
loop = 0;
|
| 1062 |
break;
|
| 1063 |
}
|
| 1064 |
}
|
| 1065 |
else if (ret == 0) // broken pipe
|
| 1066 |
{
|
| 1067 |
log_debug("write(socket) EOF\n");
|
| 1068 |
sock_write_wait = 0;
|
| 1069 |
loop = 0;
|
| 1070 |
break;
|
| 1071 |
}
|
| 1072 |
else
|
| 1073 |
{
|
| 1074 |
input_conv_offset += ret;
|
| 1075 |
if (input_conv_offset >= input_conv_len) // Output buffer complete
|
| 1076 |
{
|
| 1077 |
input_conv_offset = 0;
|
| 1078 |
input_conv_len = 0;
|
| 1079 |
break;
|
| 1080 |
}
|
| 1081 |
continue;
|
| 1082 |
}
|
| 1083 |
}
|
| 1084 |
}
|
| 1085 |
|
| 1086 |
if (sock_read_wait)
|
| 1087 |
{
|
| 1088 |
while (output_buf_len < sizeof(output_buf) && !SYS_server_exit)
|
| 1089 |
{
|
| 1090 |
if (bbsnet_conf[n].use_ssh)
|
| 1091 |
{
|
| 1092 |
ret = ssh_channel_read_nonblocking(channel, output_buf + output_buf_len,
|
| 1093 |
(uint32_t)(sizeof(output_buf) - (size_t)output_buf_len), 0);
|
| 1094 |
if (ret == SSH_ERROR)
|
| 1095 |
{
|
| 1096 |
log_debug("ssh_channel_read_nonblocking() error: %s\n", ssh_get_error(session));
|
| 1097 |
loop = 0;
|
| 1098 |
break;
|
| 1099 |
}
|
| 1100 |
else if (ret == SSH_EOF)
|
| 1101 |
{
|
| 1102 |
sock_read_wait = 0;
|
| 1103 |
loop = 0;
|
| 1104 |
break;
|
| 1105 |
}
|
| 1106 |
else if (ret == 0)
|
| 1107 |
{
|
| 1108 |
sock_read_wait = 0;
|
| 1109 |
break;
|
| 1110 |
}
|
| 1111 |
}
|
| 1112 |
else
|
| 1113 |
{
|
| 1114 |
ret = (int)read(sock, output_buf + output_buf_len, sizeof(output_buf) - (size_t)output_buf_len);
|
| 1115 |
}
|
| 1116 |
if (ret < 0)
|
| 1117 |
{
|
| 1118 |
if (errno == EAGAIN || errno == EWOULDBLOCK)
|
| 1119 |
{
|
| 1120 |
sock_read_wait = 0;
|
| 1121 |
break;
|
| 1122 |
}
|
| 1123 |
else if (errno == EINTR)
|
| 1124 |
{
|
| 1125 |
continue;
|
| 1126 |
}
|
| 1127 |
else
|
| 1128 |
{
|
| 1129 |
log_debug("read(socket) error (%d)\n", errno);
|
| 1130 |
loop = 0;
|
| 1131 |
break;
|
| 1132 |
}
|
| 1133 |
}
|
| 1134 |
else if (ret == 0) // broken pipe
|
| 1135 |
{
|
| 1136 |
log_debug("read(socket) EOF\n");
|
| 1137 |
sock_read_wait = 0;
|
| 1138 |
loop = 0;
|
| 1139 |
break;
|
| 1140 |
}
|
| 1141 |
else
|
| 1142 |
{
|
| 1143 |
output_buf_len += ret;
|
| 1144 |
continue;
|
| 1145 |
}
|
| 1146 |
}
|
| 1147 |
}
|
| 1148 |
|
| 1149 |
if (stdout_write_wait)
|
| 1150 |
{
|
| 1151 |
if (output_buf_offset < output_buf_len)
|
| 1152 |
{
|
| 1153 |
ret = io_buf_conv(output_cd, output_buf, &output_buf_len, &output_buf_offset, output_conv, sizeof(output_conv), &output_conv_len);
|
| 1154 |
if (ret < 0)
|
| 1155 |
{
|
| 1156 |
log_error("io_buf_conv(output, %d, %d, %d) error\n", output_buf_len, output_buf_offset, output_conv_len);
|
| 1157 |
output_buf_len = output_buf_offset; // Discard invalid sequence
|
| 1158 |
}
|
| 1159 |
}
|
| 1160 |
|
| 1161 |
while (output_conv_offset < output_conv_len && !SYS_server_exit)
|
| 1162 |
{
|
| 1163 |
if (SSH_v2)
|
| 1164 |
{
|
| 1165 |
ret = ssh_channel_write(SSH_channel, output_conv + output_conv_offset, (uint32_t)(output_conv_len - output_conv_offset));
|
| 1166 |
if (ret == SSH_ERROR)
|
| 1167 |
{
|
| 1168 |
log_debug("ssh_channel_write() error: %s\n", ssh_get_error(SSH_session));
|
| 1169 |
loop = 0;
|
| 1170 |
break;
|
| 1171 |
}
|
| 1172 |
}
|
| 1173 |
else
|
| 1174 |
{
|
| 1175 |
ret = (int)write(STDOUT_FILENO, output_conv + output_conv_offset, (size_t)(output_conv_len - output_conv_offset));
|
| 1176 |
}
|
| 1177 |
if (ret < 0)
|
| 1178 |
{
|
| 1179 |
if (errno == EAGAIN || errno == EWOULDBLOCK)
|
| 1180 |
{
|
| 1181 |
stdout_write_wait = 0;
|
| 1182 |
break;
|
| 1183 |
}
|
| 1184 |
else if (errno == EINTR)
|
| 1185 |
{
|
| 1186 |
continue;
|
| 1187 |
}
|
| 1188 |
else
|
| 1189 |
{
|
| 1190 |
log_debug("write(STDOUT) error (%d)\n", errno);
|
| 1191 |
loop = 0;
|
| 1192 |
break;
|
| 1193 |
}
|
| 1194 |
}
|
| 1195 |
else if (ret == 0) // broken pipe
|
| 1196 |
{
|
| 1197 |
log_debug("write(STDOUT) EOF\n");
|
| 1198 |
stdout_write_wait = 0;
|
| 1199 |
loop = 0;
|
| 1200 |
break;
|
| 1201 |
}
|
| 1202 |
else
|
| 1203 |
{
|
| 1204 |
output_conv_offset += ret;
|
| 1205 |
if (output_conv_offset >= output_conv_len) // Output buffer complete
|
| 1206 |
{
|
| 1207 |
output_conv_offset = 0;
|
| 1208 |
output_conv_len = 0;
|
| 1209 |
break;
|
| 1210 |
}
|
| 1211 |
continue;
|
| 1212 |
}
|
| 1213 |
}
|
| 1214 |
}
|
| 1215 |
}
|
| 1216 |
|
| 1217 |
cleanup:
|
| 1218 |
if (input_cd != (iconv_t)(-1))
|
| 1219 |
{
|
| 1220 |
iconv_close(input_cd);
|
| 1221 |
}
|
| 1222 |
if (output_cd != (iconv_t)(-1))
|
| 1223 |
{
|
| 1224 |
iconv_close(output_cd);
|
| 1225 |
}
|
| 1226 |
|
| 1227 |
#ifdef HAVE_SYS_EPOLL_H
|
| 1228 |
if (epollfd != -1 && close(epollfd) < 0)
|
| 1229 |
{
|
| 1230 |
log_error("close(epoll) error (%d)\n");
|
| 1231 |
}
|
| 1232 |
#endif
|
| 1233 |
|
| 1234 |
if (bbsnet_conf[n].use_ssh)
|
| 1235 |
{
|
| 1236 |
if (channel != NULL)
|
| 1237 |
{
|
| 1238 |
ssh_channel_free(channel);
|
| 1239 |
}
|
| 1240 |
if (session != NULL)
|
| 1241 |
{
|
| 1242 |
ssh_disconnect(session);
|
| 1243 |
ssh_free(session);
|
| 1244 |
}
|
| 1245 |
}
|
| 1246 |
|
| 1247 |
// Restore STDIN/STDOUT flags
|
| 1248 |
if (flags_stdin != -1 && fcntl(STDIN_FILENO, F_SETFL, flags_stdin) == -1)
|
| 1249 |
{
|
| 1250 |
log_error("fcntl(F_SETFL) error (%d)\n", errno);
|
| 1251 |
}
|
| 1252 |
if (flags_stdout != -1 && fcntl(STDOUT_FILENO, F_SETFL, flags_stdout) == -1)
|
| 1253 |
{
|
| 1254 |
log_error("fcntl(F_SETFL) error (%d)\n", errno);
|
| 1255 |
}
|
| 1256 |
|
| 1257 |
if (sock != -1 && close(sock) == -1)
|
| 1258 |
{
|
| 1259 |
log_error("Close socket failed\n");
|
| 1260 |
}
|
| 1261 |
|
| 1262 |
if (res)
|
| 1263 |
{
|
| 1264 |
freeaddrinfo(res);
|
| 1265 |
}
|
| 1266 |
|
| 1267 |
t_used = time(NULL) - t_used;
|
| 1268 |
tm_used = gmtime(&t_used);
|
| 1269 |
|
| 1270 |
log_common("BBSNET disconnect, %d days %d hours %d minutes %d seconds used\n",
|
| 1271 |
tm_used->tm_yday, tm_used->tm_hour, tm_used->tm_min, tm_used->tm_sec);
|
| 1272 |
|
| 1273 |
BBS_last_access_tm = time(NULL);
|
| 1274 |
|
| 1275 |
return 0;
|
| 1276 |
}
|
| 1277 |
|
| 1278 |
static int bbsnet_refresh()
|
| 1279 |
{
|
| 1280 |
clearscr();
|
| 1281 |
|
| 1282 |
moveto(1, 1);
|
| 1283 |
prints(" ------------------------------------------------------------------------------ ");
|
| 1284 |
for (int i = 2; i < 19; i++)
|
| 1285 |
{
|
| 1286 |
moveto(i, 1);
|
| 1287 |
prints("|");
|
| 1288 |
moveto(i, 80);
|
| 1289 |
prints("|");
|
| 1290 |
}
|
| 1291 |
moveto(19, 1);
|
| 1292 |
prints("|------------------------------------------------------------------------------|");
|
| 1293 |
moveto(22, 1);
|
| 1294 |
prints(" ------------------------------------------------------------------------------ ");
|
| 1295 |
moveto(23, 1);
|
| 1296 |
prints(" [\033[1;32mCtrl+C\033[m]退出");
|
| 1297 |
|
| 1298 |
iflush();
|
| 1299 |
|
| 1300 |
return 0;
|
| 1301 |
}
|
| 1302 |
|
| 1303 |
static int bbsnet_selchange()
|
| 1304 |
{
|
| 1305 |
int i = bbsnet_menu.menu_item_pos[0];
|
| 1306 |
|
| 1307 |
moveto(20, 1);
|
| 1308 |
clrtoeol();
|
| 1309 |
prints("|\033[1m单位: \033[1;33m%s\033[m%*s 站名: \033[1;33m%s\033[m%*s 类型: \033[1;33m%s\033[m",
|
| 1310 |
bbsnet_conf[i].org_name, 20 - str_length(bbsnet_conf[i].org_name, 1), "",
|
| 1311 |
bbsnet_conf[i].site_name, 20 - str_length(bbsnet_conf[i].site_name, 1), "",
|
| 1312 |
(bbsnet_conf[i].use_ssh ? "SSH" : "Telnet"));
|
| 1313 |
moveto(20, 80);
|
| 1314 |
prints("|");
|
| 1315 |
moveto(21, 1);
|
| 1316 |
clrtoeol();
|
| 1317 |
prints("|\033[1m连往: \033[1;33m%-20s\033[m 端口: \033[1;33m%-5s\033[m 编码: \033[1;33m%s\033[m",
|
| 1318 |
bbsnet_conf[i].host_name, bbsnet_conf[i].port, bbsnet_conf[i].charset);
|
| 1319 |
moveto(21, 80);
|
| 1320 |
prints("|");
|
| 1321 |
iflush();
|
| 1322 |
|
| 1323 |
return 0;
|
| 1324 |
}
|
| 1325 |
|
| 1326 |
int bbs_net()
|
| 1327 |
{
|
| 1328 |
int ch, i;
|
| 1329 |
|
| 1330 |
if (load_bbsnet_conf(CONF_BBSNET) < 0)
|
| 1331 |
{
|
| 1332 |
clearscr();
|
| 1333 |
moveto(1, 1);
|
| 1334 |
prints("加载穿梭配置失败！");
|
| 1335 |
press_any_key();
|
| 1336 |
return -1;
|
| 1337 |
}
|
| 1338 |
|
| 1339 |
bbsnet_refresh();
|
| 1340 |
display_menu(&bbsnet_menu);
|
| 1341 |
bbsnet_selchange();
|
| 1342 |
|
| 1343 |
while (!SYS_server_exit)
|
| 1344 |
{
|
| 1345 |
ch = igetch(100);
|
| 1346 |
|
| 1347 |
if (ch != KEY_NULL && ch != KEY_TIMEOUT)
|
| 1348 |
{
|
| 1349 |
BBS_last_access_tm = time(NULL);
|
| 1350 |
}
|
| 1351 |
|
| 1352 |
switch (ch)
|
| 1353 |
{
|
| 1354 |
case KEY_NULL: // broken pipe
|
| 1355 |
log_debug("KEY_NULL\n");
|
| 1356 |
goto cleanup;
|
| 1357 |
case KEY_TIMEOUT:
|
| 1358 |
if (time(NULL) - BBS_last_access_tm >= BBS_max_user_idle_time)
|
| 1359 |
{
|
| 1360 |
log_error("User input timeout\n");
|
| 1361 |
goto cleanup;
|
| 1362 |
}
|
| 1363 |
continue;
|
| 1364 |
case KEY_ESC:
|
| 1365 |
case Ctrl('C'): // user cancel
|
| 1366 |
goto cleanup;
|
| 1367 |
case CR:
|
| 1368 |
bbsnet_connect(bbsnet_menu.menu_item_pos[0]);
|
| 1369 |
// Force cleanup anything remaining in the output buffer
|
| 1370 |
clearscr();
|
| 1371 |
iflush();
|
| 1372 |
// Clear screen and redraw menu
|
| 1373 |
bbsnet_refresh();
|
| 1374 |
display_menu(&bbsnet_menu);
|
| 1375 |
bbsnet_selchange();
|
| 1376 |
break;
|
| 1377 |
case KEY_UP:
|
| 1378 |
for (i = 0; i < STATION_PER_LINE; i++)
|
| 1379 |
{
|
| 1380 |
menu_control(&bbsnet_menu, KEY_UP);
|
| 1381 |
}
|
| 1382 |
bbsnet_selchange();
|
| 1383 |
break;
|
| 1384 |
case KEY_DOWN:
|
| 1385 |
for (i = 0; i < STATION_PER_LINE; i++)
|
| 1386 |
{
|
| 1387 |
menu_control(&bbsnet_menu, KEY_DOWN);
|
| 1388 |
}
|
| 1389 |
bbsnet_selchange();
|
| 1390 |
break;
|
| 1391 |
case KEY_LEFT:
|
| 1392 |
menu_control(&bbsnet_menu, KEY_UP);
|
| 1393 |
bbsnet_selchange();
|
| 1394 |
break;
|
| 1395 |
case KEY_RIGHT:
|
| 1396 |
menu_control(&bbsnet_menu, KEY_DOWN);
|
| 1397 |
bbsnet_selchange();
|
| 1398 |
break;
|
| 1399 |
case KEY_HOME:
|
| 1400 |
case KEY_PGUP:
|
| 1401 |
menu_control(&bbsnet_menu, KEY_PGUP);
|
| 1402 |
bbsnet_selchange();
|
| 1403 |
break;
|
| 1404 |
case KEY_END:
|
| 1405 |
case KEY_PGDN:
|
| 1406 |
menu_control(&bbsnet_menu, KEY_PGDN);
|
| 1407 |
bbsnet_selchange();
|
| 1408 |
break;
|
| 1409 |
default:
|
| 1410 |
menu_control(&bbsnet_menu, ch);
|
| 1411 |
bbsnet_selchange();
|
| 1412 |
break;
|
| 1413 |
}
|
| 1414 |
}
|
| 1415 |
|
| 1416 |
cleanup:
|
| 1417 |
unload_bbsnet_conf();
|
| 1418 |
|
| 1419 |
return 0;
|
| 1420 |
}
|
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