/[LeafOK_CVS]/lbbs/src/bbs_net.c
ViewVC logotype

Annotation of /lbbs/src/bbs_net.c

Parent Directory Parent Directory | Revision Log Revision Log

Revision 1.91 - (hide annotations)
Wed Dec 17 03:47:00 2025 UTC (2 months, 4 weeks ago) by sysadm
Branch: MAIN
Changes since 1.90: +2 -0 lines
Content type: text/x-csrc 
Refine debug log
1 sysadm 1.76 /* SPDX-License-Identifier: GPL-3.0-or-later */
2     /*
3     * bbs_net
4     * - user interactive feature of site shuttle
5     *
6 sysadm 1.77 * Copyright (C) 2004-2025 Leaflet <leaflet@leafok.com>
7 sysadm 1.76 */
8 sysadm 1.1
9 sysadm 1.81 #ifdef HAVE_CONFIG_H
10     #include "config.h"
11     #endif
12    
13 sysadm 1.1 #include "bbs.h"
14 sysadm 1.83 #include "bbs_net.h"
15 sysadm 1.1 #include "common.h"
16 sysadm 1.55 #include "io.h"
17 sysadm 1.15 #include "log.h"
18 sysadm 1.55 #include "login.h"
19     #include "menu.h"
20 sysadm 1.15 #include "screen.h"
21 sysadm 1.84 #include "str_process.h"
22 sysadm 1.55 #include <errno.h>
23     #include <fcntl.h>
24     #include <netdb.h>
25     #include <stdarg.h>
26 sysadm 1.1 #include <stdio.h>
27 sysadm 1.55 #include <stdlib.h>
28 sysadm 1.29 #include <string.h>
29     #include <time.h>
30     #include <unistd.h>
31 sysadm 1.55 #include <arpa/inet.h>
32 sysadm 1.84 #include <ctype.h>
33 sysadm 1.55 #include <libssh/libssh.h>
34     #include <libssh/server.h>
35     #include <libssh/callbacks.h>
36     #include <netinet/in.h>
37     #include <netinet/ip.h>
38 sysadm 1.29 #include <sys/select.h>
39 sysadm 1.1 #include <sys/ioctl.h>
40     #include <sys/socket.h>
41 sysadm 1.82
42     #ifdef HAVE_SYS_EPOLL_H
43 sysadm 1.38 #include <sys/epoll.h>
44 sysadm 1.82 #else
45     #include <poll.h>
46     #endif
47 sysadm 1.1
48 sysadm 1.80 static const char MENU_CONF_DELIM[] = " \t\r\n";
49 sysadm 1.26
50 sysadm 1.80 enum _bbs_net_constant_t
51     {
52     MAX_PROCESS_BAR_LEN = 30,
53     MAXSTATION = 26 * 2,
54     STATION_PER_LINE = 4,
55 sysadm 1.84 USERNAME_MAX_LEN = 20,
56     PASSWORD_MAX_LEN = 20,
57 sysadm 1.90 SSH_CONNECT_TIMEOUT = 5, // seconds
58 sysadm 1.80 };
59 sysadm 1.1
60     struct _bbsnet_conf
61     {
62 sysadm 1.86 char org_name[40];
63     char site_name[40];
64     char host_name[IP_ADDR_LEN];
65 sysadm 1.24 in_port_t port;
66 sysadm 1.84 int8_t use_ssh;
67 sysadm 1.79 char charset[CHARSET_MAX_LEN + 1];
68 sysadm 1.1 } bbsnet_conf[MAXSTATION];
69    
70 sysadm 1.74 static MENU_SET bbsnet_menu;
71 sysadm 1.1
72 sysadm 1.89 static void unload_bbsnet_conf(void);
73    
74 sysadm 1.74 static int load_bbsnet_conf(const char *file_config)
75 sysadm 1.1 {
76 sysadm 1.14 FILE *fp;
77     MENU *p_menu;
78 sysadm 1.41 MENU_ITEM *p_menu_item;
79     MENU_ITEM_ID menu_item_id;
80 sysadm 1.86 char line[LINE_BUFFER_LEN], *t1, *t2, *t3, *t4, *t5, *t6, *saveptr;
81 sysadm 1.89 int port;
82 sysadm 1.14
83 sysadm 1.89 unload_bbsnet_conf();
84 sysadm 1.14
85 sysadm 1.41 bbsnet_menu.p_menu_pool = calloc(1, sizeof(MENU));
86     if (bbsnet_menu.p_menu_pool == NULL)
87     {
88     log_error("calloc(p_menu_pool) error\n");
89 sysadm 1.89 return -1;
90 sysadm 1.41 }
91     bbsnet_menu.menu_count = 1;
92    
93     bbsnet_menu.p_menu_item_pool = calloc(MAXSTATION, sizeof(MENU_ITEM));
94     if (bbsnet_menu.p_menu_item_pool == NULL)
95     {
96     log_error("calloc(p_menu_item_pool) error\n");
97 sysadm 1.89 unload_bbsnet_conf();
98     return -1;
99 sysadm 1.41 }
100     bbsnet_menu.menu_item_count = MAXSTATION;
101    
102     p_menu = (MENU *)get_menu_by_id(&bbsnet_menu, 0);
103 sysadm 1.40
104 sysadm 1.21 strncpy(p_menu->name, "BBSNET", sizeof(p_menu->name) - 1);
105     p_menu->name[sizeof(p_menu->name) - 1] = '\0';
106 sysadm 1.14 p_menu->title.show = 0;
107 sysadm 1.41 p_menu->screen_show = 0;
108 sysadm 1.1
109 sysadm 1.89 fp = fopen(file_config, "r");
110     if (fp == NULL)
111     {
112     unload_bbsnet_conf();
113     return -2;
114     }
115    
116 sysadm 1.41 menu_item_id = 0;
117 sysadm 1.86 while (fgets(line, sizeof(line), fp) && menu_item_id < MAXSTATION)
118 sysadm 1.14 {
119 sysadm 1.86 t1 = strtok_r(line, MENU_CONF_DELIM, &saveptr);
120 sysadm 1.26 t2 = strtok_r(NULL, MENU_CONF_DELIM, &saveptr);
121     t3 = strtok_r(NULL, MENU_CONF_DELIM, &saveptr);
122     t4 = strtok_r(NULL, MENU_CONF_DELIM, &saveptr);
123 sysadm 1.60 t5 = strtok_r(NULL, MENU_CONF_DELIM, &saveptr);
124 sysadm 1.84 t6 = strtok_r(NULL, MENU_CONF_DELIM, &saveptr);
125 sysadm 1.14
126 sysadm 1.84 if (t1 == NULL || t2 == NULL || t3 == NULL || t4 == NULL ||
127 sysadm 1.86 t5 == NULL || t6 == NULL || line[0] == '#' || line[0] == '*')
128 sysadm 1.18 {
129 sysadm 1.14 continue;
130 sysadm 1.18 }
131    
132 sysadm 1.86 strncpy(bbsnet_conf[menu_item_id].site_name, t2, sizeof(bbsnet_conf[menu_item_id].site_name) - 1);
133     bbsnet_conf[menu_item_id].site_name[sizeof(bbsnet_conf[menu_item_id].site_name) - 1] = '\0';
134     strncpy(bbsnet_conf[menu_item_id].org_name, t1, sizeof(bbsnet_conf[menu_item_id].org_name) - 1);
135     bbsnet_conf[menu_item_id].org_name[sizeof(bbsnet_conf[menu_item_id].org_name) - 1] = '\0';
136     strncpy(bbsnet_conf[menu_item_id].host_name, t3, sizeof(bbsnet_conf[menu_item_id].host_name) - 1);
137     bbsnet_conf[menu_item_id].host_name[sizeof(bbsnet_conf[menu_item_id].host_name) - 1] = '\0';
138 sysadm 1.89 port = atoi(t4);
139     if (port <= 0 || port > 65535)
140     {
141     log_error("Invalid port value %d of menu item %d\n", port, menu_item_id);
142     fclose(fp);
143     unload_bbsnet_conf();
144     return -3;
145     }
146     bbsnet_conf[menu_item_id].port = (in_port_t)port;
147 sysadm 1.84 bbsnet_conf[menu_item_id].use_ssh = (toupper(t5[0]) == 'Y');
148     strncpy(bbsnet_conf[menu_item_id].charset, t6, sizeof(bbsnet_conf[menu_item_id].charset) - 1);
149 sysadm 1.60 bbsnet_conf[menu_item_id].charset[sizeof(bbsnet_conf[menu_item_id].charset) - 1] = '\0';
150 sysadm 1.14
151 sysadm 1.41 p_menu_item = get_menu_item_by_id(&bbsnet_menu, menu_item_id);
152     if (p_menu_item == NULL)
153     {
154     log_error("get_menu_item_by_id(%d) return NULL pointer\n", menu_item_id);
155 sysadm 1.89 fclose(fp);
156     unload_bbsnet_conf();
157     return -3;
158 sysadm 1.41 }
159 sysadm 1.14
160 sysadm 1.41 p_menu_item->row = (int16_t)(2 + menu_item_id / STATION_PER_LINE);
161     p_menu_item->col = (int16_t)(5 + menu_item_id % STATION_PER_LINE * 20);
162     snprintf(p_menu_item->action, sizeof(p_menu_item->action), "%d", (int16_t)menu_item_id);
163     p_menu_item->submenu = 0;
164     p_menu_item->priv = 0;
165     p_menu_item->level = 0;
166     p_menu_item->name[0] =
167     (char)(menu_item_id < MAXSTATION / 2 ? 'A' + menu_item_id : 'a' + menu_item_id);
168     p_menu_item->name[1] = '\0';
169 sysadm 1.89 snprintf(p_menu_item->text, sizeof(p_menu_item->text), "\033[1;36m%c.\033[m %s",
170 sysadm 1.86 p_menu_item->name[0], bbsnet_conf[menu_item_id].site_name);
171 sysadm 1.41
172     p_menu->items[p_menu->item_count] = menu_item_id;
173     p_menu->item_count++;
174     menu_item_id++;
175     }
176    
177     bbsnet_menu.menu_item_count = (int16_t)menu_item_id;
178     bbsnet_menu.menu_id_path[0] = 0;
179     bbsnet_menu.menu_item_pos[0] = 0;
180     bbsnet_menu.choose_step = 0;
181 sysadm 1.14
182 sysadm 1.41 fclose(fp);
183 sysadm 1.14
184     return 0;
185 sysadm 1.1 }
186    
187 sysadm 1.74 static void unload_bbsnet_conf(void)
188 sysadm 1.40 {
189 sysadm 1.41 bbsnet_menu.menu_count = 0;
190     bbsnet_menu.menu_item_count = 0;
191    
192 sysadm 1.89 if (bbsnet_menu.p_menu_pool)
193     {
194     free(bbsnet_menu.p_menu_pool);
195     bbsnet_menu.p_menu_pool = NULL;
196     }
197    
198     if (bbsnet_menu.p_menu_item_pool)
199     {
200     free(bbsnet_menu.p_menu_item_pool);
201     bbsnet_menu.p_menu_item_pool = NULL;
202     }
203 sysadm 1.40 }
204    
205 sysadm 1.74 static void process_bar(int n, int len)
206 sysadm 1.1 {
207 sysadm 1.27 char buf[LINE_BUFFER_LEN];
208     char buf2[LINE_BUFFER_LEN];
209    
210 sysadm 1.89 if (len <= 0)
211     {
212     len = 1;
213     }
214     else if (len > LINE_BUFFER_LEN)
215 sysadm 1.27 {
216     len = LINE_BUFFER_LEN - 1;
217     }
218     if (n < 0)
219     {
220     n = 0;
221     }
222     else if (n > len)
223     {
224     n = len;
225     }
226 sysadm 1.14
227 sysadm 1.84 moveto(4, 1);
228 sysadm 1.23 prints(" ------------------------------ \r\n");
229 sysadm 1.27 snprintf(buf, sizeof(buf), " %3d%% ", n * 100 / len);
230 sysadm 1.75 memcpy(buf2, buf, (size_t)n);
231 sysadm 1.27 buf2[n] = '\0';
232     prints("|\033[46m%s\033[44m%s\033[m|\r\n", buf2, buf + n);
233 sysadm 1.23 prints(" ------------------------------ \r\n");
234 sysadm 1.14 iflush();
235 sysadm 1.1 }
236    
237 sysadm 1.74 static int bbsnet_connect(int n)
238 sysadm 1.1 {
239 sysadm 1.89 int sock = -1;
240     int ret;
241     int loop;
242     int error;
243 sysadm 1.38 int sock_connected = 0;
244 sysadm 1.89 int flags_sock = -1;
245     int flags_stdin = -1;
246     int flags_stdout = -1;
247 sysadm 1.14 struct sockaddr_in sin;
248 sysadm 1.36 char input_buf[LINE_BUFFER_LEN];
249     char output_buf[LINE_BUFFER_LEN];
250     int input_buf_len = 0;
251     int output_buf_len = 0;
252     int input_buf_offset = 0;
253     int output_buf_offset = 0;
254 sysadm 1.60 char input_conv[LINE_BUFFER_LEN * 2];
255     char output_conv[LINE_BUFFER_LEN * 2];
256     int input_conv_len = 0;
257     int output_conv_len = 0;
258     int input_conv_offset = 0;
259     int output_conv_offset = 0;
260 sysadm 1.89 iconv_t input_cd = (iconv_t)(-1);
261     iconv_t output_cd = (iconv_t)(-1);
262     char tocode[CHARSET_MAX_LEN + 20];
263 sysadm 1.82
264     #ifdef HAVE_SYS_EPOLL_H
265 sysadm 1.38 struct epoll_event ev, events[MAX_EVENTS];
266 sysadm 1.89 int epollfd = -1;
267 sysadm 1.82 #else
268     struct pollfd pfds[3];
269     #endif
270    
271     int nfds;
272 sysadm 1.38 int stdin_read_wait = 0;
273     int stdout_write_wait = 0;
274     int sock_read_wait = 0;
275     int sock_write_wait = 0;
276 sysadm 1.26 struct hostent *p_host = NULL;
277 sysadm 1.31 int tos;
278 sysadm 1.26 char remote_addr[IP_ADDR_LEN];
279 sysadm 1.14 int remote_port;
280 sysadm 1.63 char local_addr[IP_ADDR_LEN];
281     int local_port;
282     socklen_t sock_len;
283 sysadm 1.90 time_t t_begin;
284 sysadm 1.56 time_t t_used = time(NULL);
285 sysadm 1.14 struct tm *tm_used;
286 sysadm 1.26 int ch;
287 sysadm 1.84 char remote_user[USERNAME_MAX_LEN + 1];
288     char remote_pass[PASSWORD_MAX_LEN + 1];
289     ssh_session session = NULL;
290     ssh_channel channel = NULL;
291     int ssh_process_config = 0;
292 sysadm 1.88 int ssh_log_level = SSH_LOG_NOLOG;
293 sysadm 1.14
294 sysadm 1.53 if (user_online_update("BBS_NET") < 0)
295     {
296     log_error("user_online_update(BBS_NET) error\n");
297     }
298    
299 sysadm 1.84 if (bbsnet_conf[n].use_ssh)
300     {
301     clearscr();
302    
303     if (!SSH_v2)
304     {
305     moveto(1, 1);
306     prints("只有在以SSH方式登陆本站时，才能使用SSH站点穿梭。");
307     press_any_key();
308     return 0;
309     }
310    
311     moveto(1, 1);
312 sysadm 1.86 prints("通过SSH方式连接[%s]...", bbsnet_conf[n].site_name);
313 sysadm 1.84 moveto(2, 1);
314     prints("请输入用户名: ");
315     iflush();
316     if (str_input(remote_user, sizeof(remote_user), DOECHO) < 0)
317     {
318     return -1;
319     }
320     if (remote_user[0] == '\0')
321     {
322     return 0;
323     }
324    
325     moveto(3, 1);
326     prints("请输入密码: ");
327     iflush();
328     if (str_input(remote_pass, sizeof(remote_pass), NOECHO) < 0)
329     {
330     return -1;
331     }
332     if (remote_pass[0] == '\0')
333     {
334     return 0;
335     }
336     }
337    
338 sysadm 1.14 clearscr();
339    
340 sysadm 1.84 moveto(1, 1);
341 sysadm 1.57 prints("\033[1;32m正在测试往 %s (%s) 的连接，请稍候... \033[m\r\n",
342 sysadm 1.86 bbsnet_conf[n].site_name, bbsnet_conf[n].host_name);
343 sysadm 1.14 iflush();
344    
345 sysadm 1.86 p_host = gethostbyname(bbsnet_conf[n].host_name);
346 sysadm 1.14
347 sysadm 1.26 if (p_host == NULL)
348 sysadm 1.1 {
349 sysadm 1.57 prints("\033[1;31m查找主机名失败！\033[m\r\n");
350 sysadm 1.14 press_any_key();
351 sysadm 1.89 goto cleanup;
352 sysadm 1.1 }
353 sysadm 1.14
354     sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
355    
356     if (sock < 0)
357 sysadm 1.1 {
358 sysadm 1.57 prints("\033[1;31m无法创建socket！\033[m\r\n");
359 sysadm 1.14 press_any_key();
360 sysadm 1.89 goto cleanup;
361 sysadm 1.1 }
362    
363 sysadm 1.14 sin.sin_family = AF_INET;
364 sysadm 1.48 sin.sin_addr.s_addr = (BBS_address[0] != '\0' ? inet_addr(BBS_address) : INADDR_ANY);
365 sysadm 1.14 sin.sin_port = 0;
366    
367     if (bind(sock, (struct sockaddr *)&sin, sizeof(sin)) < 0)
368     {
369 sysadm 1.31 log_error("Bind address %s:%u failed (%d)\n",
370     inet_ntoa(sin.sin_addr), ntohs(sin.sin_port), errno);
371 sysadm 1.89 goto cleanup;
372 sysadm 1.14 }
373 sysadm 1.1
374 sysadm 1.49 memset(&sin, 0, sizeof(sin));
375 sysadm 1.14 sin.sin_family = AF_INET;
376 sysadm 1.26 sin.sin_addr = *(struct in_addr *)p_host->h_addr_list[0];
377 sysadm 1.14 sin.sin_port = htons(bbsnet_conf[n].port);
378    
379 sysadm 1.21 strncpy(remote_addr, inet_ntoa(sin.sin_addr), sizeof(remote_addr) - 1);
380     remote_addr[sizeof(remote_addr) - 1] = '\0';
381 sysadm 1.14 remote_port = ntohs(sin.sin_port);
382    
383 sysadm 1.57 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");
384 sysadm 1.14 process_bar(0, MAX_PROCESS_BAR_LEN);
385 sysadm 1.29
386 sysadm 1.39 // Set socket as non-blocking
387 sysadm 1.89 if ((flags_sock = fcntl(sock, F_GETFL, 0)) == -1)
388     {
389     log_error("fcntl(F_GETFL) error (%d)\n", errno);
390     goto cleanup;
391     }
392     if ((fcntl(sock, F_SETFL, flags_sock | O_NONBLOCK)) == -1)
393     {
394     log_error("fcntl(F_SETFL) error (%d)\n", errno);
395     goto cleanup;
396     }
397 sysadm 1.39
398     // Set STDIN/STDOUT as non-blocking
399 sysadm 1.89 if ((flags_stdin = fcntl(STDIN_FILENO, F_GETFL, 0)) == -1)
400     {
401     log_error("fcntl(F_GETFL) error (%d)\n", errno);
402     goto cleanup;
403     }
404     if ((flags_stdout = fcntl(STDOUT_FILENO, F_GETFL, 0)) == -1)
405     {
406     log_error("fcntl(F_GETFL) error (%d)\n", errno);
407     goto cleanup;
408     }
409     if ((fcntl(STDIN_FILENO, F_SETFL, flags_stdin | O_NONBLOCK)) == -1)
410     {
411     log_error("fcntl(F_SETFL) error (%d)\n", errno);
412     goto cleanup;
413     }
414     if ((fcntl(STDOUT_FILENO, F_SETFL, flags_stdout | O_NONBLOCK)) == -1)
415     {
416     log_error("fcntl(F_SETFL) error (%d)\n", errno);
417     goto cleanup;
418     }
419 sysadm 1.39
420 sysadm 1.82 #ifdef HAVE_SYS_EPOLL_H
421 sysadm 1.38 epollfd = epoll_create1(0);
422     if (epollfd < 0)
423     {
424     log_error("epoll_create1() error (%d)\n", errno);
425 sysadm 1.89 goto cleanup;
426 sysadm 1.38 }
427    
428 sysadm 1.59 ev.events = EPOLLOUT | EPOLLET;
429 sysadm 1.38 ev.data.fd = sock;
430     if (epoll_ctl(epollfd, EPOLL_CTL_ADD, sock, &ev) == -1)
431     {
432     log_error("epoll_ctl(socket) error (%d)\n", errno);
433 sysadm 1.39 goto cleanup;
434 sysadm 1.38 }
435    
436 sysadm 1.59 ev.events = EPOLLIN | EPOLLET;
437 sysadm 1.38 ev.data.fd = STDIN_FILENO;
438     if (epoll_ctl(epollfd, EPOLL_CTL_ADD, STDIN_FILENO, &ev) == -1)
439     {
440     log_error("epoll_ctl(STDIN_FILENO) error (%d)\n", errno);
441 sysadm 1.39 goto cleanup;
442 sysadm 1.38 }
443 sysadm 1.82 #endif
444 sysadm 1.38
445     while (!SYS_server_exit)
446 sysadm 1.29 {
447 sysadm 1.38 if ((ret = connect(sock, (struct sockaddr *)&sin, sizeof(sin))) < 0)
448 sysadm 1.29 {
449 sysadm 1.38 if (errno == EAGAIN || errno == EALREADY || errno == EINPROGRESS)
450     {
451     // Use select / epoll to check writability of the socket,
452     // then use getsockopt to check the status of the socket.
453     // See man connect(2)
454     break;
455     }
456     else if (errno == EINTR)
457     {
458     continue;
459     }
460     else
461     {
462     log_error("connect(socket) error (%d)\n", errno);
463 sysadm 1.39
464 sysadm 1.57 prints("\033[1;31m连接失败！\033[m\r\n");
465 sysadm 1.38 press_any_key();
466 sysadm 1.39
467     goto cleanup;
468 sysadm 1.38 }
469 sysadm 1.29 }
470     }
471    
472 sysadm 1.38 for (int j = 0; j < MAX_PROCESS_BAR_LEN && !sock_connected && !SYS_server_exit; j++)
473 sysadm 1.1 {
474 sysadm 1.82 #ifdef HAVE_SYS_EPOLL_H
475 sysadm 1.38 nfds = epoll_wait(epollfd, events, MAX_EVENTS, 500); // 0.5 second
476 sysadm 1.82 ret = nfds;
477     #else
478     pfds[0].fd = sock;
479     pfds[0].events = POLLOUT;
480     pfds[1].fd = STDIN_FILENO;
481     pfds[1].events = POLLIN;
482     nfds = 2;
483     ret = poll(pfds, (nfds_t)nfds, 500); // 0.5 second
484     #endif
485 sysadm 1.29
486 sysadm 1.82 if (ret < 0)
487 sysadm 1.20 {
488 sysadm 1.29 if (errno != EINTR)
489     {
490 sysadm 1.82 #ifdef HAVE_SYS_EPOLL_H
491 sysadm 1.38 log_error("epoll_wait() error (%d)\n", errno);
492 sysadm 1.82 #else
493     log_error("poll() error (%d)\n", errno);
494     #endif
495 sysadm 1.39 break;
496 sysadm 1.29 }
497 sysadm 1.20 }
498 sysadm 1.82 else if (ret == 0) // timeout
499 sysadm 1.38 {
500     process_bar(j + 1, MAX_PROCESS_BAR_LEN);
501     }
502     else // ret > 0
503 sysadm 1.14 {
504 sysadm 1.38 for (int i = 0; i < nfds; i++)
505 sysadm 1.29 {
506 sysadm 1.82 #ifdef HAVE_SYS_EPOLL_H
507 sysadm 1.38 if (events[i].data.fd == sock)
508 sysadm 1.82 #else
509     if (pfds[i].fd == sock && (pfds[i].revents & POLLOUT))
510     #endif
511 sysadm 1.38 {
512 sysadm 1.89 socklen_t len = sizeof(error);
513     if (getsockopt(sock, SOL_SOCKET, SO_ERROR, &error, &len) < 0)
514 sysadm 1.38 {
515 sysadm 1.89 log_error("getsockopt() error (%d) !\n", errno);
516 sysadm 1.39 goto cleanup;
517 sysadm 1.38 }
518     if (error == 0)
519     {
520     sock_connected = 1;
521     }
522     }
523 sysadm 1.82 #ifdef HAVE_SYS_EPOLL_H
524 sysadm 1.38 else if (events[i].data.fd == STDIN_FILENO)
525 sysadm 1.82 #else
526     else if (pfds[i].fd == STDIN_FILENO && (pfds[i].revents & POLLIN))
527     #endif
528 sysadm 1.38 {
529 sysadm 1.84 do
530     {
531     ch = igetch(0);
532     } while (ch == 0);
533 sysadm 1.45 if (ch == Ctrl('C') || ch == KEY_ESC)
534 sysadm 1.38 {
535 sysadm 1.39 goto cleanup;
536 sysadm 1.38 }
537     }
538 sysadm 1.29 }
539 sysadm 1.14 }
540 sysadm 1.12 }
541 sysadm 1.38 if (SYS_server_exit)
542     {
543 sysadm 1.39 goto cleanup;
544 sysadm 1.38 }
545     if (!sock_connected)
546 sysadm 1.12 {
547 sysadm 1.57 prints("\033[1;31m连接失败！\033[m\r\n");
548 sysadm 1.14 press_any_key();
549 sysadm 1.39
550     goto cleanup;
551 sysadm 1.12 }
552 sysadm 1.29
553 sysadm 1.31 tos = IPTOS_LOWDELAY;
554     if (setsockopt(sock, IPPROTO_IP, IP_TOS, &tos, sizeof(tos)) < 0)
555     {
556     log_error("setsockopt IP_TOS=%d error (%d)\n", tos, errno);
557     }
558 sysadm 1.14
559 sysadm 1.63 sock_len = sizeof(sin);
560     if (getsockname(sock, (struct sockaddr *)&sin, &sock_len) < 0)
561     {
562     log_error("getsockname() error: %d", errno);
563     goto cleanup;
564     }
565    
566     strncpy(local_addr, inet_ntoa(sin.sin_addr), sizeof(local_addr) - 1);
567     local_addr[sizeof(local_addr) - 1] = '\0';
568     local_port = ntohs(sin.sin_port);
569    
570 sysadm 1.84 if (bbsnet_conf[n].use_ssh)
571     {
572     session = ssh_new();
573     if (session == NULL)
574     {
575     log_error("ssh_new() error\n");
576     goto cleanup;
577     }
578    
579     if (ssh_options_set(session, SSH_OPTIONS_FD, &sock) < 0 ||
580     ssh_options_set(session, SSH_OPTIONS_PROCESS_CONFIG, &ssh_process_config) < 0 ||
581 sysadm 1.85 ssh_options_set(session, SSH_OPTIONS_KNOWNHOSTS, SSH_KNOWN_HOSTS_FILE) < 0 ||
582 sysadm 1.86 ssh_options_set(session, SSH_OPTIONS_HOST, bbsnet_conf[n].host_name) < 0 ||
583 sysadm 1.84 ssh_options_set(session, SSH_OPTIONS_USER, remote_user) < 0 ||
584     ssh_options_set(session, SSH_OPTIONS_HOSTKEYS, "+ssh-rsa") < 0 ||
585     ssh_options_set(session, SSH_OPTIONS_LOG_VERBOSITY, &ssh_log_level) < 0)
586     {
587     log_error("Error setting SSH options: %s\n", ssh_get_error(session));
588     goto cleanup;
589     }
590    
591 sysadm 1.90 ssh_set_blocking(session, 0);
592 sysadm 1.85
593 sysadm 1.90 t_begin = time(NULL);
594     ret = SSH_ERROR;
595     while (!SYS_server_exit && time(NULL) - t_begin < SSH_CONNECT_TIMEOUT)
596 sysadm 1.84 {
597     ret = ssh_connect(session);
598     if (ret == SSH_OK)
599     {
600     break;
601     }
602 sysadm 1.90 else if (ret == SSH_AGAIN)
603     {
604     // log_error("ssh_connect() error: SSH_AGAIN\n");
605     }
606     else // if (ret == SSH_ERROR)
607 sysadm 1.84 {
608 sysadm 1.90 log_error("ssh_connect() error: SSH_ERROR\n");
609 sysadm 1.84 goto cleanup;
610     }
611     }
612 sysadm 1.90 if (ret != SSH_OK)
613     {
614     prints("\033[1;31m连接超时！\033[m\r\n");
615     press_any_key();
616     goto cleanup;
617     }
618 sysadm 1.84
619 sysadm 1.85 ret = ssh_session_is_known_server(session);
620     switch (ret)
621     {
622     case SSH_KNOWN_HOSTS_NOT_FOUND:
623     case SSH_KNOWN_HOSTS_UNKNOWN:
624     if (ssh_session_update_known_hosts(session) != SSH_OK)
625     {
626 sysadm 1.86 log_error("ssh_session_update_known_hosts(%s) error\n", bbsnet_conf[n].host_name);
627 sysadm 1.90 prints("\033[1;31m无法添加服务器证书\033[m\r\n");
628 sysadm 1.85 press_any_key();
629     goto cleanup;
630     }
631 sysadm 1.86 log_common("SSH key of (%s) is added into %s\n", bbsnet_conf[n].host_name, SSH_KNOWN_HOSTS_FILE);
632 sysadm 1.85 case SSH_KNOWN_HOSTS_OK:
633     break;
634     case SSH_KNOWN_HOSTS_CHANGED:
635     case SSH_KNOWN_HOSTS_OTHER:
636 sysadm 1.86 log_error("ssh_session_is_known_server(%s) error: %d\n", bbsnet_conf[n].host_name, ret);
637 sysadm 1.90 prints("\033[1;31m服务器证书已变更\033[m\r\n");
638 sysadm 1.85 press_any_key();
639     goto cleanup;
640     }
641 sysadm 1.84
642 sysadm 1.90 ret = SSH_AUTH_ERROR;
643     while (!SYS_server_exit && time(NULL) - t_begin < SSH_CONNECT_TIMEOUT)
644 sysadm 1.84 {
645     ret = ssh_userauth_password(session, NULL, remote_pass);
646     if (ret == SSH_AUTH_SUCCESS)
647     {
648     break;
649     }
650     else if (ret == SSH_AUTH_AGAIN)
651     {
652 sysadm 1.90 // log_error("ssh_userauth_password() error: SSH_AUTH_AGAIN\n");
653 sysadm 1.84 }
654     else if (ret == SSH_AUTH_ERROR)
655     {
656 sysadm 1.90 log_error("ssh_userauth_password() error: SSH_AUTH_ERROR\n");
657 sysadm 1.84 goto cleanup;
658     }
659     else // if (ret == SSH_AUTH_DENIED)
660     {
661 sysadm 1.90 log_error("ssh_userauth_password() error: SSH_AUTH_DENIED\n");
662 sysadm 1.84 prints("\033[1;31m身份验证失败！\033[m\r\n");
663 sysadm 1.90 press_any_key();
664     goto cleanup;
665 sysadm 1.84 }
666     }
667 sysadm 1.90 if (ret != SSH_AUTH_SUCCESS)
668     {
669     prints("\033[1;31m连接超时！\033[m\r\n");
670     press_any_key();
671     goto cleanup;
672     }
673 sysadm 1.84
674     channel = ssh_channel_new(session);
675     if (channel == NULL)
676     {
677     log_error("ssh_channel_new() error\n");
678     goto cleanup;
679     }
680    
681 sysadm 1.90 ret = SSH_ERROR;
682     while (!SYS_server_exit && time(NULL) - t_begin < SSH_CONNECT_TIMEOUT)
683 sysadm 1.84 {
684     ret = ssh_channel_open_session(channel);
685     if (ret == SSH_OK)
686     {
687     break;
688     }
689 sysadm 1.90 else if (ret == SSH_AGAIN)
690     {
691     // log_error("ssh_channel_open_session() error: SSH_AGAIN\n");
692     }
693     else // if (ret == SSH_ERROR)
694 sysadm 1.84 {
695 sysadm 1.90 log_error("ssh_channel_open_session() error: SSH_ERROR\n");
696 sysadm 1.84 goto cleanup;
697     }
698     }
699 sysadm 1.90 if (ret != SSH_OK)
700     {
701     prints("\033[1;31m连接超时！\033[m\r\n");
702     press_any_key();
703     goto cleanup;
704     }
705 sysadm 1.84
706 sysadm 1.90 ret = SSH_ERROR;
707     while (!SYS_server_exit && time(NULL) - t_begin < SSH_CONNECT_TIMEOUT)
708 sysadm 1.84 {
709     ret = ssh_channel_request_pty(channel);
710     if (ret == SSH_OK)
711     {
712     break;
713     }
714 sysadm 1.90 else if (ret == SSH_AGAIN)
715     {
716     // log_error("ssh_channel_request_pty() error: SSH_AGAIN\n");
717     }
718     else // if (ret == SSH_ERROR)
719 sysadm 1.84 {
720 sysadm 1.90 log_error("ssh_channel_request_pty() error: SSH_ERROR\n");
721 sysadm 1.84 goto cleanup;
722     }
723     }
724 sysadm 1.90 if (ret != SSH_OK)
725     {
726     prints("\033[1;31m连接超时！\033[m\r\n");
727     press_any_key();
728     goto cleanup;
729     }
730 sysadm 1.84
731 sysadm 1.90 ret = SSH_ERROR;
732     while (!SYS_server_exit && time(NULL) - t_begin < SSH_CONNECT_TIMEOUT)
733 sysadm 1.84 {
734     ret = ssh_channel_request_shell(channel);
735     if (ret == SSH_OK)
736     {
737     break;
738     }
739 sysadm 1.90 else if (ret == SSH_AGAIN)
740     {
741     // log_error("ssh_channel_request_shell() error: SSH_AGAIN\n");
742     }
743     else // if (ret == SSH_ERROR)
744 sysadm 1.84 {
745 sysadm 1.90 log_error("ssh_channel_request_shell() error: SSH_ERROR\n");
746 sysadm 1.84 goto cleanup;
747     }
748     }
749 sysadm 1.90 if (ret != SSH_OK)
750 sysadm 1.89 {
751 sysadm 1.90 prints("\033[1;31m连接超时！\033[m\r\n");
752     press_any_key();
753 sysadm 1.89 goto cleanup;
754     }
755 sysadm 1.84 }
756    
757 sysadm 1.57 prints("\033[1;31m连接成功！\033[m\r\n");
758 sysadm 1.33 iflush();
759 sysadm 1.63 log_common("BBSNET connect to %s:%d from %s:%d by [%s]\n",
760     remote_addr, remote_port, local_addr, local_port, BBS_username);
761 sysadm 1.14
762 sysadm 1.71 snprintf(tocode, sizeof(tocode), "%s%s", bbsnet_conf[n].charset,
763     (strcasecmp(stdio_charset, bbsnet_conf[n].charset) == 0 ? "" : "//IGNORE"));
764 sysadm 1.68 input_cd = iconv_open(tocode, stdio_charset);
765 sysadm 1.60 if (input_cd == (iconv_t)(-1))
766     {
767 sysadm 1.68 log_error("iconv_open(%s->%s) error: %d\n", stdio_charset, tocode, errno);
768 sysadm 1.60 goto cleanup;
769     }
770 sysadm 1.68
771 sysadm 1.71 snprintf(tocode, sizeof(tocode), "%s%s", stdio_charset,
772     (strcasecmp(bbsnet_conf[n].charset, stdio_charset) == 0 ? "" : "//TRANSLIT"));
773 sysadm 1.70 output_cd = iconv_open(tocode, bbsnet_conf[n].charset);
774 sysadm 1.67 if (output_cd == (iconv_t)(-1))
775 sysadm 1.60 {
776 sysadm 1.68 log_error("iconv_open(%s->%s) error: %d\n", bbsnet_conf[n].charset, tocode, errno);
777 sysadm 1.60 goto cleanup;
778     }
779    
780 sysadm 1.82 #ifdef HAVE_SYS_EPOLL_H
781 sysadm 1.38 ev.events = EPOLLIN | EPOLLOUT | EPOLLET;
782     ev.data.fd = sock;
783     if (epoll_ctl(epollfd, EPOLL_CTL_MOD, sock, &ev) == -1)
784     {
785     log_error("epoll_ctl(socket) error (%d)\n", errno);
786 sysadm 1.39 goto cleanup;
787 sysadm 1.38 }
788    
789 sysadm 1.59 ev.events = EPOLLOUT | EPOLLET;
790 sysadm 1.38 ev.data.fd = STDOUT_FILENO;
791     if (epoll_ctl(epollfd, EPOLL_CTL_ADD, STDOUT_FILENO, &ev) == -1)
792     {
793     log_error("epoll_ctl(STDOUT_FILENO) error (%d)\n", errno);
794 sysadm 1.39 goto cleanup;
795 sysadm 1.38 }
796 sysadm 1.82 #endif
797 sysadm 1.38
798 sysadm 1.50 BBS_last_access_tm = t_used = time(NULL);
799 sysadm 1.14 loop = 1;
800    
801 sysadm 1.26 while (loop && !SYS_server_exit)
802 sysadm 1.12 {
803 sysadm 1.47 if (SSH_v2 && ssh_channel_is_closed(SSH_channel))
804     {
805     log_error("SSH channel is closed\n");
806     loop = 0;
807     break;
808     }
809    
810 sysadm 1.84 if (bbsnet_conf[n].use_ssh && ssh_channel_is_closed(channel))
811     {
812     log_error("Remote SSH channel is closed\n");
813     loop = 0;
814     break;
815     }
816    
817 sysadm 1.82 #ifdef HAVE_SYS_EPOLL_H
818 sysadm 1.38 nfds = epoll_wait(epollfd, events, MAX_EVENTS, 100); // 0.1 second
819 sysadm 1.82 ret = nfds;
820     #else
821     pfds[0].fd = STDIN_FILENO;
822     pfds[0].events = POLLIN;
823     pfds[1].fd = sock;
824     pfds[1].events = POLLIN | POLLOUT;
825     pfds[2].fd = STDOUT_FILENO;
826     pfds[2].events = POLLOUT;
827     nfds = 3;
828     ret = poll(pfds, (nfds_t)nfds, 100); // 0.1 second
829     #endif
830 sysadm 1.33
831 sysadm 1.82 if (ret < 0)
832 sysadm 1.14 {
833 sysadm 1.38 if (errno != EINTR)
834 sysadm 1.14 {
835 sysadm 1.82 #ifdef HAVE_SYS_EPOLL_H
836 sysadm 1.38 log_error("epoll_wait() error (%d)\n", errno);
837 sysadm 1.82 #else
838     log_error("poll() error (%d)\n", errno);
839     #endif
840 sysadm 1.38 break;
841 sysadm 1.14 }
842 sysadm 1.38 continue;
843 sysadm 1.14 }
844 sysadm 1.82 else if (ret == 0) // timeout
845 sysadm 1.1 {
846 sysadm 1.78 if (time(NULL) - BBS_last_access_tm >= BBS_max_user_idle_time)
847 sysadm 1.28 {
848 sysadm 1.38 break;
849 sysadm 1.28 }
850 sysadm 1.1 }
851 sysadm 1.38
852     for (int i = 0; i < nfds; i++)
853 sysadm 1.1 {
854 sysadm 1.82 #ifdef HAVE_SYS_EPOLL_H
855 sysadm 1.59 if (events[i].data.fd == STDIN_FILENO)
856 sysadm 1.82 #else
857     if (pfds[i].fd == STDIN_FILENO && (pfds[i].revents & POLLIN))
858     #endif
859 sysadm 1.14 {
860 sysadm 1.38 stdin_read_wait = 1;
861 sysadm 1.59 }
862    
863 sysadm 1.82 #ifdef HAVE_SYS_EPOLL_H
864 sysadm 1.59 if (events[i].data.fd == sock)
865 sysadm 1.82 #else
866     if (pfds[i].fd == sock)
867     #endif
868 sysadm 1.59 {
869 sysadm 1.82 #ifdef HAVE_SYS_EPOLL_H
870 sysadm 1.59 if (events[i].events & EPOLLIN)
871 sysadm 1.82 #else
872     if (pfds[i].revents & POLLIN)
873     #endif
874 sysadm 1.59 {
875     sock_read_wait = 1;
876     }
877 sysadm 1.82
878     #ifdef HAVE_SYS_EPOLL_H
879 sysadm 1.59 if (events[i].events & EPOLLOUT)
880 sysadm 1.82 #else
881     if (pfds[i].revents & POLLOUT)
882     #endif
883 sysadm 1.59 {
884     sock_write_wait = 1;
885     }
886     }
887    
888 sysadm 1.82 #ifdef HAVE_SYS_EPOLL_H
889 sysadm 1.59 if (events[i].data.fd == STDOUT_FILENO)
890 sysadm 1.82 #else
891     if (pfds[i].fd == STDOUT_FILENO && (pfds[i].revents & POLLOUT))
892 sysadm 1.84 #endif
893 sysadm 1.59 {
894     stdout_write_wait = 1;
895     }
896     }
897    
898     if (stdin_read_wait)
899     {
900     while (input_buf_len < sizeof(input_buf) && !SYS_server_exit)
901     {
902     if (SSH_v2)
903 sysadm 1.33 {
904 sysadm 1.59 ret = ssh_channel_read_nonblocking(SSH_channel, input_buf + input_buf_len, sizeof(input_buf) - (uint32_t)input_buf_len, 0);
905     if (ret == SSH_ERROR)
906 sysadm 1.47 {
907 sysadm 1.59 log_error("ssh_channel_read_nonblocking() error: %s\n", ssh_get_error(SSH_session));
908     loop = 0;
909     break;
910 sysadm 1.47 }
911 sysadm 1.59 else if (ret == SSH_EOF)
912 sysadm 1.47 {
913 sysadm 1.59 stdin_read_wait = 0;
914     loop = 0;
915     break;
916 sysadm 1.47 }
917 sysadm 1.59 else if (ret == 0)
918 sysadm 1.33 {
919 sysadm 1.72 // Send NO-OP to remote server
920     input_buf[input_buf_len] = '\0';
921     input_buf_len++;
922 sysadm 1.73 BBS_last_access_tm = time(NULL);
923 sysadm 1.72
924 sysadm 1.59 stdin_read_wait = 0;
925     break; // Check whether channel is still open
926 sysadm 1.38 }
927 sysadm 1.59 }
928     else
929     {
930     ret = (int)read(STDIN_FILENO, input_buf + input_buf_len, sizeof(input_buf) - (size_t)input_buf_len);
931     }
932     if (ret < 0)
933     {
934     if (errno == EAGAIN || errno == EWOULDBLOCK)
935 sysadm 1.38 {
936     stdin_read_wait = 0;
937     break;
938     }
939 sysadm 1.59 else if (errno == EINTR)
940     {
941     continue;
942     }
943 sysadm 1.38 else
944     {
945 sysadm 1.59 log_error("read(STDIN) error (%d)\n", errno);
946     loop = 0;
947     break;
948     }
949     }
950     else if (ret == 0) // broken pipe
951     {
952     #ifdef _DEBUG
953     log_error("read(STDIN) EOF\n");
954     #endif
955     stdin_read_wait = 0;
956     loop = 0;
957     break;
958     }
959     else
960     {
961     input_buf_len += ret;
962     BBS_last_access_tm = time(NULL);
963 sysadm 1.58
964 sysadm 1.59 // Refresh current action while user input
965     if (user_online_update("BBS_NET") < 0)
966     {
967     log_error("user_online_update(BBS_NET) error\n");
968     }
969 sysadm 1.58
970 sysadm 1.59 continue;
971 sysadm 1.33 }
972 sysadm 1.36 }
973 sysadm 1.59 }
974 sysadm 1.29
975 sysadm 1.59 if (sock_write_wait)
976     {
977 sysadm 1.60 if (input_buf_offset < input_buf_len)
978 sysadm 1.36 {
979 sysadm 1.72 // For debug
980     #ifdef _DEBUG
981     for (int j = input_buf_offset; j < input_buf_len; j++)
982     {
983     log_error("Debug input: <--[%u]\n", (input_buf[j] + 256) % 256);
984     }
985     #endif
986    
987 sysadm 1.66 ret = io_buf_conv(input_cd, input_buf, &input_buf_len, &input_buf_offset, input_conv, sizeof(input_conv), &input_conv_len);
988 sysadm 1.60 if (ret < 0)
989     {
990 sysadm 1.66 log_error("io_buf_conv(input, %d, %d, %d) error\n", input_buf_len, input_buf_offset, input_conv_len);
991 sysadm 1.71 input_buf_len = input_buf_offset; // Discard invalid sequence
992 sysadm 1.60 }
993 sysadm 1.72
994     // For debug
995     #ifdef _DEBUG
996     for (int j = input_conv_offset; j < input_conv_len; j++)
997     {
998     log_error("Debug input_conv: <--[%u]\n", (input_conv[j] + 256) % 256);
999     }
1000     #endif
1001 sysadm 1.60 }
1002    
1003     while (input_conv_offset < input_conv_len && !SYS_server_exit)
1004     {
1005 sysadm 1.84 if (bbsnet_conf[n].use_ssh)
1006     {
1007     ret = ssh_channel_write(channel, input_conv + input_conv_offset, (uint32_t)(input_conv_len - input_conv_offset));
1008     if (ret == SSH_ERROR)
1009     {
1010     log_error("ssh_channel_write() error: %s\n", ssh_get_error(session));
1011     loop = 0;
1012     break;
1013     }
1014     }
1015     else
1016     {
1017     ret = (int)write(sock, input_conv + input_conv_offset, (size_t)(input_conv_len - input_conv_offset));
1018     }
1019 sysadm 1.59 if (ret < 0)
1020 sysadm 1.36 {
1021 sysadm 1.59 if (errno == EAGAIN || errno == EWOULDBLOCK)
1022 sysadm 1.36 {
1023 sysadm 1.59 sock_write_wait = 0;
1024     break;
1025 sysadm 1.38 }
1026 sysadm 1.59 else if (errno == EINTR)
1027 sysadm 1.38 {
1028 sysadm 1.59 continue;
1029     }
1030     else
1031     {
1032     log_error("write(socket) error (%d)\n", errno);
1033 sysadm 1.36 loop = 0;
1034 sysadm 1.38 break;
1035     }
1036 sysadm 1.59 }
1037     else if (ret == 0) // broken pipe
1038     {
1039     #ifdef _DEBUG
1040     log_error("write(socket) EOF\n");
1041     #endif
1042     sock_write_wait = 0;
1043     loop = 0;
1044     break;
1045     }
1046     else
1047     {
1048 sysadm 1.60 input_conv_offset += ret;
1049     if (input_conv_offset >= input_conv_len) // Output buffer complete
1050 sysadm 1.38 {
1051 sysadm 1.60 input_conv_offset = 0;
1052     input_conv_len = 0;
1053 sysadm 1.59 break;
1054 sysadm 1.36 }
1055 sysadm 1.59 continue;
1056 sysadm 1.36 }
1057 sysadm 1.14 }
1058 sysadm 1.59 }
1059 sysadm 1.36
1060 sysadm 1.59 if (sock_read_wait)
1061     {
1062     while (output_buf_len < sizeof(output_buf) && !SYS_server_exit)
1063 sysadm 1.14 {
1064 sysadm 1.84 if (bbsnet_conf[n].use_ssh)
1065     {
1066     ret = ssh_channel_read_nonblocking(channel, output_buf + output_buf_len,
1067     (uint32_t)(sizeof(output_buf) - (size_t)output_buf_len), 0);
1068     if (ret == SSH_ERROR)
1069     {
1070     log_error("ssh_channel_read_nonblocking() error: %s\n", ssh_get_error(session));
1071     loop = 0;
1072     break;
1073     }
1074     else if (ret == SSH_EOF)
1075     {
1076     sock_read_wait = 0;
1077     loop = 0;
1078     break;
1079     }
1080     else if (ret == 0)
1081     {
1082     sock_read_wait = 0;
1083     break;
1084     }
1085     }
1086     else
1087     {
1088     ret = (int)read(sock, output_buf + output_buf_len, sizeof(output_buf) - (size_t)output_buf_len);
1089     }
1090 sysadm 1.59 if (ret < 0)
1091 sysadm 1.14 {
1092 sysadm 1.59 if (errno == EAGAIN || errno == EWOULDBLOCK)
1093 sysadm 1.38 {
1094 sysadm 1.59 sock_read_wait = 0;
1095     break;
1096 sysadm 1.38 }
1097 sysadm 1.59 else if (errno == EINTR)
1098 sysadm 1.33 {
1099 sysadm 1.59 continue;
1100 sysadm 1.38 }
1101     else
1102     {
1103 sysadm 1.59 log_error("read(socket) error (%d)\n", errno);
1104     loop = 0;
1105     break;
1106 sysadm 1.33 }
1107     }
1108 sysadm 1.59 else if (ret == 0) // broken pipe
1109     {
1110     #ifdef _DEBUG
1111     log_error("read(socket) EOF\n");
1112     #endif
1113     sock_read_wait = 0;
1114     loop = 0;
1115     break;
1116     }
1117     else
1118     {
1119     output_buf_len += ret;
1120     continue;
1121     }
1122 sysadm 1.36 }
1123 sysadm 1.59 }
1124 sysadm 1.36
1125 sysadm 1.59 if (stdout_write_wait)
1126     {
1127 sysadm 1.60 if (output_buf_offset < output_buf_len)
1128     {
1129 sysadm 1.66 ret = io_buf_conv(output_cd, output_buf, &output_buf_len, &output_buf_offset, output_conv, sizeof(output_conv), &output_conv_len);
1130 sysadm 1.60 if (ret < 0)
1131     {
1132 sysadm 1.66 log_error("io_buf_conv(output, %d, %d, %d) error\n", output_buf_len, output_buf_offset, output_conv_len);
1133 sysadm 1.71 output_buf_len = output_buf_offset; // Discard invalid sequence
1134 sysadm 1.60 }
1135     }
1136    
1137     while (output_conv_offset < output_conv_len && !SYS_server_exit)
1138 sysadm 1.36 {
1139 sysadm 1.59 if (SSH_v2)
1140 sysadm 1.36 {
1141 sysadm 1.60 ret = ssh_channel_write(SSH_channel, output_conv + output_conv_offset, (uint32_t)(output_conv_len - output_conv_offset));
1142 sysadm 1.59 if (ret == SSH_ERROR)
1143 sysadm 1.47 {
1144 sysadm 1.59 log_error("ssh_channel_write() error: %s\n", ssh_get_error(SSH_session));
1145     loop = 0;
1146     break;
1147 sysadm 1.47 }
1148 sysadm 1.59 }
1149     else
1150     {
1151 sysadm 1.60 ret = (int)write(STDOUT_FILENO, output_conv + output_conv_offset, (size_t)(output_conv_len - output_conv_offset));
1152 sysadm 1.59 }
1153     if (ret < 0)
1154     {
1155     if (errno == EAGAIN || errno == EWOULDBLOCK)
1156 sysadm 1.47 {
1157 sysadm 1.59 stdout_write_wait = 0;
1158     break;
1159 sysadm 1.47 }
1160 sysadm 1.59 else if (errno == EINTR)
1161 sysadm 1.38 {
1162 sysadm 1.59 continue;
1163 sysadm 1.38 }
1164 sysadm 1.59 else
1165 sysadm 1.33 {
1166 sysadm 1.59 log_error("write(STDOUT) error (%d)\n", errno);
1167 sysadm 1.36 loop = 0;
1168 sysadm 1.38 break;
1169     }
1170 sysadm 1.59 }
1171     else if (ret == 0) // broken pipe
1172     {
1173     #ifdef _DEBUG
1174     log_error("write(STDOUT) EOF\n");
1175     #endif
1176     stdout_write_wait = 0;
1177     loop = 0;
1178     break;
1179     }
1180     else
1181     {
1182 sysadm 1.60 output_conv_offset += ret;
1183     if (output_conv_offset >= output_conv_len) // Output buffer complete
1184 sysadm 1.38 {
1185 sysadm 1.60 output_conv_offset = 0;
1186     output_conv_len = 0;
1187 sysadm 1.59 break;
1188 sysadm 1.36 }
1189 sysadm 1.59 continue;
1190 sysadm 1.36 }
1191 sysadm 1.14 }
1192 sysadm 1.1 }
1193     }
1194    
1195 sysadm 1.89 cleanup:
1196     if (input_cd != (iconv_t)(-1))
1197     {
1198     iconv_close(input_cd);
1199     }
1200     if (output_cd != (iconv_t)(-1))
1201     {
1202     iconv_close(output_cd);
1203     }
1204 sysadm 1.60
1205 sysadm 1.82 #ifdef HAVE_SYS_EPOLL_H
1206 sysadm 1.89 if (epollfd != -1 && close(epollfd) < 0)
1207 sysadm 1.39 {
1208     log_error("close(epoll) error (%d)\n");
1209     }
1210 sysadm 1.82 #endif
1211 sysadm 1.39
1212 sysadm 1.84 if (bbsnet_conf[n].use_ssh)
1213     {
1214 sysadm 1.89 if (channel != NULL)
1215     {
1216     ssh_channel_free(channel);
1217     }
1218     if (session != NULL)
1219     {
1220     ssh_disconnect(session);
1221     ssh_free(session);
1222     }
1223 sysadm 1.84 }
1224    
1225 sysadm 1.36 // Restore STDIN/STDOUT flags
1226 sysadm 1.90 if (flags_stdin != -1 && fcntl(STDIN_FILENO, F_SETFL, flags_stdin) == -1)
1227 sysadm 1.89 {
1228     log_error("fcntl(F_SETFL) error (%d)\n", errno);
1229     }
1230     if (flags_stdout != -1 && fcntl(STDOUT_FILENO, F_SETFL, flags_stdout) == -1)
1231     {
1232     log_error("fcntl(F_SETFL) error (%d)\n", errno);
1233     }
1234 sysadm 1.36
1235 sysadm 1.89 if (sock != -1 && close(sock) == -1)
1236 sysadm 1.14 {
1237     log_error("Close socket failed\n");
1238     }
1239 sysadm 1.1
1240 sysadm 1.50 t_used = time(NULL) - t_used;
1241 sysadm 1.14 tm_used = gmtime(&t_used);
1242 sysadm 1.8
1243 sysadm 1.46 log_common("BBSNET disconnect, %d days %d hours %d minutes %d seconds used\n",
1244 sysadm 1.90 tm_used->tm_yday, tm_used->tm_hour, tm_used->tm_min, tm_used->tm_sec);
1245 sysadm 1.8
1246 sysadm 1.72 BBS_last_access_tm = time(NULL);
1247    
1248 sysadm 1.14 return 0;
1249 sysadm 1.1 }
1250    
1251 sysadm 1.74 static int bbsnet_refresh()
1252 sysadm 1.1 {
1253 sysadm 1.14 clearscr();
1254 sysadm 1.84
1255     moveto(1, 1);
1256     prints(" ------------------------------------------------------------------------------ ");
1257 sysadm 1.20 for (int i = 2; i < 19; i++)
1258 sysadm 1.14 {
1259 sysadm 1.84 moveto(i, 1);
1260 sysadm 1.23 prints("|");
1261 sysadm 1.84 moveto(i, 80);
1262 sysadm 1.23 prints("|");
1263 sysadm 1.14 }
1264 sysadm 1.84 moveto(19, 1);
1265     prints("|------------------------------------------------------------------------------|");
1266     moveto(22, 1);
1267     prints(" ------------------------------------------------------------------------------ ");
1268     moveto(23, 1);
1269     prints(" [\033[1;32mCtrl+C\033[m]退出");
1270 sysadm 1.13
1271 sysadm 1.14 iflush();
1272 sysadm 1.1
1273 sysadm 1.14 return 0;
1274 sysadm 1.1 }
1275    
1276 sysadm 1.74 static int bbsnet_selchange()
1277 sysadm 1.1 {
1278 sysadm 1.43 int i = bbsnet_menu.menu_item_pos[0];
1279    
1280 sysadm 1.84 moveto(20, 1);
1281 sysadm 1.14 clrtoeol();
1282 sysadm 1.87 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",
1283     bbsnet_conf[i].org_name, 20 - str_length(bbsnet_conf[i].org_name, 1), "",
1284     bbsnet_conf[i].site_name, 20 - str_length(bbsnet_conf[i].site_name, 1), "",
1285     (bbsnet_conf[i].use_ssh ? "SSH" : "Telnet"));
1286 sysadm 1.84 moveto(20, 80);
1287 sysadm 1.23 prints("|");
1288 sysadm 1.84 moveto(21, 1);
1289 sysadm 1.14 clrtoeol();
1290 sysadm 1.87 prints("|\033[1m连往: \033[1;33m%-20s\033[m 端口: \033[1;33m%-5d\033[m 编码: \033[1;33m%s\033[m",
1291     bbsnet_conf[i].host_name, bbsnet_conf[i].port, bbsnet_conf[i].charset);
1292 sysadm 1.84 moveto(21, 80);
1293 sysadm 1.23 prints("|");
1294 sysadm 1.14 iflush();
1295 sysadm 1.1
1296 sysadm 1.14 return 0;
1297 sysadm 1.1 }
1298    
1299 sysadm 1.83 int bbs_net()
1300 sysadm 1.1 {
1301 sysadm 1.43 int ch, i;
1302 sysadm 1.1
1303 sysadm 1.89 if (load_bbsnet_conf(CONF_BBSNET) < 0)
1304     {
1305     clearscr();
1306     moveto(1, 1);
1307     prints("加载穿梭配置失败！");
1308     press_any_key();
1309     return -1;
1310     }
1311 sysadm 1.1
1312 sysadm 1.14 bbsnet_refresh();
1313 sysadm 1.41 display_menu(&bbsnet_menu);
1314 sysadm 1.43 bbsnet_selchange();
1315 sysadm 1.14
1316 sysadm 1.26 while (!SYS_server_exit)
1317 sysadm 1.1 {
1318 sysadm 1.39 ch = igetch(100);
1319 sysadm 1.52
1320 sysadm 1.71 if (ch != KEY_NULL && ch != KEY_TIMEOUT)
1321     {
1322     BBS_last_access_tm = time(NULL);
1323     }
1324 sysadm 1.64
1325 sysadm 1.14 switch (ch)
1326     {
1327 sysadm 1.47 case KEY_NULL: // broken pipe
1328 sysadm 1.91 #ifdef _DEBUG
1329 sysadm 1.64 log_error("KEY_NULL\n");
1330 sysadm 1.91 #endif
1331 sysadm 1.40 goto cleanup;
1332 sysadm 1.14 case KEY_TIMEOUT:
1333 sysadm 1.78 if (time(NULL) - BBS_last_access_tm >= BBS_max_user_idle_time)
1334 sysadm 1.14 {
1335 sysadm 1.64 log_error("User input timeout\n");
1336 sysadm 1.40 goto cleanup;
1337 sysadm 1.14 }
1338 sysadm 1.29 continue;
1339 sysadm 1.64 case KEY_ESC:
1340     case Ctrl('C'): // user cancel
1341     goto cleanup;
1342 sysadm 1.14 case CR:
1343 sysadm 1.43 bbsnet_connect(bbsnet_menu.menu_item_pos[0]);
1344 sysadm 1.84 // Force cleanup anything remaining in the output buffer
1345     clearscr();
1346     iflush();
1347     // Clear screen and redraw menu
1348 sysadm 1.14 bbsnet_refresh();
1349 sysadm 1.41 display_menu(&bbsnet_menu);
1350 sysadm 1.43 bbsnet_selchange();
1351 sysadm 1.14 break;
1352     case KEY_UP:
1353     for (i = 0; i < STATION_PER_LINE; i++)
1354 sysadm 1.20 {
1355 sysadm 1.14 menu_control(&bbsnet_menu, KEY_UP);
1356 sysadm 1.20 }
1357 sysadm 1.43 bbsnet_selchange();
1358 sysadm 1.14 break;
1359     case KEY_DOWN:
1360     for (i = 0; i < STATION_PER_LINE; i++)
1361 sysadm 1.20 {
1362 sysadm 1.14 menu_control(&bbsnet_menu, KEY_DOWN);
1363 sysadm 1.20 }
1364 sysadm 1.43 bbsnet_selchange();
1365 sysadm 1.14 break;
1366     case KEY_LEFT:
1367     menu_control(&bbsnet_menu, KEY_UP);
1368 sysadm 1.43 bbsnet_selchange();
1369 sysadm 1.14 break;
1370     case KEY_RIGHT:
1371     menu_control(&bbsnet_menu, KEY_DOWN);
1372 sysadm 1.43 bbsnet_selchange();
1373     break;
1374 sysadm 1.44 case KEY_HOME:
1375 sysadm 1.43 case KEY_PGUP:
1376     menu_control(&bbsnet_menu, KEY_PGUP);
1377     bbsnet_selchange();
1378 sysadm 1.14 break;
1379 sysadm 1.44 case KEY_END:
1380     case KEY_PGDN:
1381     menu_control(&bbsnet_menu, KEY_PGDN);
1382     bbsnet_selchange();
1383     break;
1384 sysadm 1.14 default:
1385     menu_control(&bbsnet_menu, ch);
1386 sysadm 1.43 bbsnet_selchange();
1387 sysadm 1.14 break;
1388     }
1389 sysadm 1.1 }
1390    
1391 sysadm 1.40 cleanup:
1392     unload_bbsnet_conf();
1393    
1394 sysadm 1.14 return 0;
1395 sysadm 1.1 }
webmaster@leafok.com
 ViewVC Help
Powered by ViewVC 1.3.0-beta1