/[LeafOK_CVS]/lbbs/src/bbs_net.c
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Revision 1.84 - (hide annotations)
Sun Nov 30 10:05:16 2025 UTC (3 months, 2 weeks ago) by sysadm
Branch: MAIN
Changes since 1.83: +268 -32 lines
Content type: text/x-csrc 
Support SSH connect in bbs_net
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 1.80 };
58 sysadm 1.1
59     struct _bbsnet_conf
60     {
61 sysadm 1.14 char host1[20];
62     char host2[40];
63     char ip[40];
64 sysadm 1.24 in_port_t port;
65 sysadm 1.84 int8_t use_ssh;
66 sysadm 1.79 char charset[CHARSET_MAX_LEN + 1];
67 sysadm 1.1 } bbsnet_conf[MAXSTATION];
68    
69 sysadm 1.74 static MENU_SET bbsnet_menu;
70 sysadm 1.1
71 sysadm 1.74 static int load_bbsnet_conf(const char *file_config)
72 sysadm 1.1 {
73 sysadm 1.14 FILE *fp;
74     MENU *p_menu;
75 sysadm 1.41 MENU_ITEM *p_menu_item;
76     MENU_ITEM_ID menu_item_id;
77 sysadm 1.84 char t[256], *t1, *t2, *t3, *t4, *t5, *t6, *saveptr;
78 sysadm 1.14
79     fp = fopen(file_config, "r");
80     if (fp == NULL)
81 sysadm 1.20 {
82 sysadm 1.14 return -1;
83 sysadm 1.20 }
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     return -3;
90     }
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     return -3;
98     }
99     bbsnet_menu.menu_item_count = MAXSTATION;
100    
101     p_menu = (MENU *)get_menu_by_id(&bbsnet_menu, 0);
102 sysadm 1.40
103 sysadm 1.21 strncpy(p_menu->name, "BBSNET", sizeof(p_menu->name) - 1);
104     p_menu->name[sizeof(p_menu->name) - 1] = '\0';
105 sysadm 1.14 p_menu->title.show = 0;
106 sysadm 1.41 p_menu->screen_show = 0;
107 sysadm 1.1
108 sysadm 1.41 menu_item_id = 0;
109     while (fgets(t, 255, fp) && menu_item_id < MAXSTATION)
110 sysadm 1.14 {
111 sysadm 1.26 t1 = strtok_r(t, MENU_CONF_DELIM, &saveptr);
112     t2 = strtok_r(NULL, MENU_CONF_DELIM, &saveptr);
113     t3 = strtok_r(NULL, MENU_CONF_DELIM, &saveptr);
114     t4 = strtok_r(NULL, MENU_CONF_DELIM, &saveptr);
115 sysadm 1.60 t5 = strtok_r(NULL, MENU_CONF_DELIM, &saveptr);
116 sysadm 1.84 t6 = strtok_r(NULL, MENU_CONF_DELIM, &saveptr);
117 sysadm 1.14
118 sysadm 1.84 if (t1 == NULL || t2 == NULL || t3 == NULL || t4 == NULL ||
119     t5 == NULL || t6 == NULL || t[0] == '#' || t[0] == '*')
120 sysadm 1.18 {
121 sysadm 1.14 continue;
122 sysadm 1.18 }
123    
124 sysadm 1.41 strncpy(bbsnet_conf[menu_item_id].host1, t2, sizeof(bbsnet_conf[menu_item_id].host1) - 1);
125     bbsnet_conf[menu_item_id].host1[sizeof(bbsnet_conf[menu_item_id].host1) - 1] = '\0';
126     strncpy(bbsnet_conf[menu_item_id].host2, t1, sizeof(bbsnet_conf[menu_item_id].host2) - 1);
127     bbsnet_conf[menu_item_id].host2[sizeof(bbsnet_conf[menu_item_id].host2) - 1] = '\0';
128     strncpy(bbsnet_conf[menu_item_id].ip, t3, sizeof(bbsnet_conf[menu_item_id].ip) - 1);
129     bbsnet_conf[menu_item_id].ip[sizeof(bbsnet_conf[menu_item_id].ip) - 1] = '\0';
130     bbsnet_conf[menu_item_id].port = (in_port_t)(t4 ? atoi(t4) : 23);
131 sysadm 1.84 bbsnet_conf[menu_item_id].use_ssh = (toupper(t5[0]) == 'Y');
132     strncpy(bbsnet_conf[menu_item_id].charset, t6, sizeof(bbsnet_conf[menu_item_id].charset) - 1);
133 sysadm 1.60 bbsnet_conf[menu_item_id].charset[sizeof(bbsnet_conf[menu_item_id].charset) - 1] = '\0';
134 sysadm 1.14
135 sysadm 1.41 p_menu_item = get_menu_item_by_id(&bbsnet_menu, menu_item_id);
136     if (p_menu_item == NULL)
137     {
138     log_error("get_menu_item_by_id(%d) return NULL pointer\n", menu_item_id);
139     return -1;
140     }
141 sysadm 1.14
142 sysadm 1.41 p_menu_item->row = (int16_t)(2 + menu_item_id / STATION_PER_LINE);
143     p_menu_item->col = (int16_t)(5 + menu_item_id % STATION_PER_LINE * 20);
144     snprintf(p_menu_item->action, sizeof(p_menu_item->action), "%d", (int16_t)menu_item_id);
145     p_menu_item->submenu = 0;
146     p_menu_item->priv = 0;
147     p_menu_item->level = 0;
148     p_menu_item->name[0] =
149     (char)(menu_item_id < MAXSTATION / 2 ? 'A' + menu_item_id : 'a' + menu_item_id);
150     p_menu_item->name[1] = '\0';
151     snprintf(p_menu_item->text, sizeof(p_menu_item->text), "%c. %s",
152     p_menu_item->name[0], bbsnet_conf[menu_item_id].host1);
153    
154     p_menu->items[p_menu->item_count] = menu_item_id;
155     p_menu->item_count++;
156     menu_item_id++;
157     }
158    
159     bbsnet_menu.menu_item_count = (int16_t)menu_item_id;
160     bbsnet_menu.menu_id_path[0] = 0;
161     bbsnet_menu.menu_item_pos[0] = 0;
162     bbsnet_menu.choose_step = 0;
163 sysadm 1.14
164 sysadm 1.41 fclose(fp);
165 sysadm 1.14
166     return 0;
167 sysadm 1.1 }
168    
169 sysadm 1.74 static void unload_bbsnet_conf(void)
170 sysadm 1.40 {
171 sysadm 1.41 bbsnet_menu.menu_count = 0;
172     bbsnet_menu.menu_item_count = 0;
173    
174     free(bbsnet_menu.p_menu_pool);
175     bbsnet_menu.p_menu_pool = NULL;
176     free(bbsnet_menu.p_menu_item_pool);
177     bbsnet_menu.p_menu_item_pool = NULL;
178 sysadm 1.40 }
179    
180 sysadm 1.74 static void process_bar(int n, int len)
181 sysadm 1.1 {
182 sysadm 1.27 char buf[LINE_BUFFER_LEN];
183     char buf2[LINE_BUFFER_LEN];
184    
185     if (len > LINE_BUFFER_LEN)
186     {
187     len = LINE_BUFFER_LEN - 1;
188     }
189     if (n < 0)
190     {
191     n = 0;
192     }
193     else if (n > len)
194     {
195     n = len;
196     }
197 sysadm 1.14
198 sysadm 1.84 moveto(4, 1);
199 sysadm 1.23 prints(" ------------------------------ \r\n");
200 sysadm 1.27 snprintf(buf, sizeof(buf), " %3d%% ", n * 100 / len);
201 sysadm 1.75 memcpy(buf2, buf, (size_t)n);
202 sysadm 1.27 buf2[n] = '\0';
203     prints("|\033[46m%s\033[44m%s\033[m|\r\n", buf2, buf + n);
204 sysadm 1.23 prints(" ------------------------------ \r\n");
205 sysadm 1.14 iflush();
206 sysadm 1.1 }
207    
208 sysadm 1.74 static int bbsnet_connect(int n)
209 sysadm 1.1 {
210 sysadm 1.36 int sock, ret, loop, error;
211 sysadm 1.38 int sock_connected = 0;
212 sysadm 1.36 int flags_sock;
213     int flags_stdin;
214     int flags_stdout;
215     int len;
216 sysadm 1.14 struct sockaddr_in sin;
217 sysadm 1.36 char input_buf[LINE_BUFFER_LEN];
218     char output_buf[LINE_BUFFER_LEN];
219     int input_buf_len = 0;
220     int output_buf_len = 0;
221     int input_buf_offset = 0;
222     int output_buf_offset = 0;
223 sysadm 1.60 char input_conv[LINE_BUFFER_LEN * 2];
224     char output_conv[LINE_BUFFER_LEN * 2];
225     int input_conv_len = 0;
226     int output_conv_len = 0;
227     int input_conv_offset = 0;
228     int output_conv_offset = 0;
229 sysadm 1.67 iconv_t input_cd = NULL;
230 sysadm 1.60 iconv_t output_cd = NULL;
231 sysadm 1.68 char tocode[32];
232 sysadm 1.82
233     #ifdef HAVE_SYS_EPOLL_H
234 sysadm 1.38 struct epoll_event ev, events[MAX_EVENTS];
235 sysadm 1.82 int epollfd;
236     #else
237     struct pollfd pfds[3];
238     #endif
239    
240     int nfds;
241 sysadm 1.38 int stdin_read_wait = 0;
242     int stdout_write_wait = 0;
243     int sock_read_wait = 0;
244     int sock_write_wait = 0;
245 sysadm 1.26 struct hostent *p_host = NULL;
246 sysadm 1.31 int tos;
247 sysadm 1.26 char remote_addr[IP_ADDR_LEN];
248 sysadm 1.14 int remote_port;
249 sysadm 1.63 char local_addr[IP_ADDR_LEN];
250     int local_port;
251     socklen_t sock_len;
252 sysadm 1.56 time_t t_used = time(NULL);
253 sysadm 1.14 struct tm *tm_used;
254 sysadm 1.26 int ch;
255 sysadm 1.84 char remote_user[USERNAME_MAX_LEN + 1];
256     char remote_pass[PASSWORD_MAX_LEN + 1];
257     ssh_session session = NULL;
258     ssh_channel channel = NULL;
259     int ssh_process_config = 0;
260     int ssh_log_level = SSH_LOG_PROTOCOL;
261 sysadm 1.14
262 sysadm 1.53 if (user_online_update("BBS_NET") < 0)
263     {
264     log_error("user_online_update(BBS_NET) error\n");
265     }
266    
267 sysadm 1.84 if (bbsnet_conf[n].use_ssh)
268     {
269     clearscr();
270    
271     if (!SSH_v2)
272     {
273     moveto(1, 1);
274     prints("只有在以SSH方式登陆本站时，才能使用SSH站点穿梭。");
275     press_any_key();
276     return 0;
277     }
278    
279     moveto(1, 1);
280     prints("通过SSH方式连接[%s]...", bbsnet_conf[n].host1);
281     moveto(2, 1);
282     prints("请输入用户名: ");
283     iflush();
284     if (str_input(remote_user, sizeof(remote_user), DOECHO) < 0)
285     {
286     return -1;
287     }
288     if (remote_user[0] == '\0')
289     {
290     return 0;
291     }
292    
293     moveto(3, 1);
294     prints("请输入密码: ");
295     iflush();
296     if (str_input(remote_pass, sizeof(remote_pass), NOECHO) < 0)
297     {
298     return -1;
299     }
300     if (remote_pass[0] == '\0')
301     {
302     return 0;
303     }
304     }
305    
306 sysadm 1.14 clearscr();
307    
308 sysadm 1.84 moveto(1, 1);
309 sysadm 1.57 prints("\033[1;32m正在测试往 %s (%s) 的连接，请稍候... \033[m\r\n",
310 sysadm 1.14 bbsnet_conf[n].host1, bbsnet_conf[n].ip);
311     iflush();
312    
313 sysadm 1.26 p_host = gethostbyname(bbsnet_conf[n].ip);
314 sysadm 1.14
315 sysadm 1.26 if (p_host == NULL)
316 sysadm 1.1 {
317 sysadm 1.57 prints("\033[1;31m查找主机名失败！\033[m\r\n");
318 sysadm 1.14 press_any_key();
319     return -1;
320 sysadm 1.1 }
321 sysadm 1.14
322     sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
323    
324     if (sock < 0)
325 sysadm 1.1 {
326 sysadm 1.57 prints("\033[1;31m无法创建socket！\033[m\r\n");
327 sysadm 1.14 press_any_key();
328     return -1;
329 sysadm 1.1 }
330    
331 sysadm 1.14 sin.sin_family = AF_INET;
332 sysadm 1.48 sin.sin_addr.s_addr = (BBS_address[0] != '\0' ? inet_addr(BBS_address) : INADDR_ANY);
333 sysadm 1.14 sin.sin_port = 0;
334    
335     if (bind(sock, (struct sockaddr *)&sin, sizeof(sin)) < 0)
336     {
337 sysadm 1.31 log_error("Bind address %s:%u failed (%d)\n",
338     inet_ntoa(sin.sin_addr), ntohs(sin.sin_port), errno);
339 sysadm 1.14 return -2;
340     }
341 sysadm 1.1
342 sysadm 1.49 memset(&sin, 0, sizeof(sin));
343 sysadm 1.14 sin.sin_family = AF_INET;
344 sysadm 1.26 sin.sin_addr = *(struct in_addr *)p_host->h_addr_list[0];
345 sysadm 1.14 sin.sin_port = htons(bbsnet_conf[n].port);
346    
347 sysadm 1.21 strncpy(remote_addr, inet_ntoa(sin.sin_addr), sizeof(remote_addr) - 1);
348     remote_addr[sizeof(remote_addr) - 1] = '\0';
349 sysadm 1.14 remote_port = ntohs(sin.sin_port);
350    
351 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");
352 sysadm 1.14 process_bar(0, MAX_PROCESS_BAR_LEN);
353 sysadm 1.29
354 sysadm 1.39 // Set socket as non-blocking
355     flags_sock = fcntl(sock, F_GETFL, 0);
356     fcntl(sock, F_SETFL, flags_sock | O_NONBLOCK);
357    
358     // Set STDIN/STDOUT as non-blocking
359     flags_stdin = fcntl(STDIN_FILENO, F_GETFL, 0);
360     flags_stdout = fcntl(STDOUT_FILENO, F_GETFL, 0);
361     fcntl(STDIN_FILENO, F_SETFL, flags_stdin | O_NONBLOCK);
362     fcntl(STDOUT_FILENO, F_SETFL, flags_stdout | O_NONBLOCK);
363    
364 sysadm 1.82 #ifdef HAVE_SYS_EPOLL_H
365 sysadm 1.38 epollfd = epoll_create1(0);
366     if (epollfd < 0)
367     {
368     log_error("epoll_create1() error (%d)\n", errno);
369     return -1;
370     }
371    
372 sysadm 1.59 ev.events = EPOLLOUT | EPOLLET;
373 sysadm 1.38 ev.data.fd = sock;
374     if (epoll_ctl(epollfd, EPOLL_CTL_ADD, sock, &ev) == -1)
375     {
376     log_error("epoll_ctl(socket) error (%d)\n", errno);
377 sysadm 1.39 goto cleanup;
378 sysadm 1.38 }
379    
380 sysadm 1.59 ev.events = EPOLLIN | EPOLLET;
381 sysadm 1.38 ev.data.fd = STDIN_FILENO;
382     if (epoll_ctl(epollfd, EPOLL_CTL_ADD, STDIN_FILENO, &ev) == -1)
383     {
384     log_error("epoll_ctl(STDIN_FILENO) error (%d)\n", errno);
385 sysadm 1.39 goto cleanup;
386 sysadm 1.38 }
387 sysadm 1.82 #endif
388 sysadm 1.38
389     while (!SYS_server_exit)
390 sysadm 1.29 {
391 sysadm 1.38 if ((ret = connect(sock, (struct sockaddr *)&sin, sizeof(sin))) < 0)
392 sysadm 1.29 {
393 sysadm 1.38 if (errno == EAGAIN || errno == EALREADY || errno == EINPROGRESS)
394     {
395     // Use select / epoll to check writability of the socket,
396     // then use getsockopt to check the status of the socket.
397     // See man connect(2)
398     break;
399     }
400     else if (errno == EINTR)
401     {
402     continue;
403     }
404     else
405     {
406     log_error("connect(socket) error (%d)\n", errno);
407 sysadm 1.39
408 sysadm 1.57 prints("\033[1;31m连接失败！\033[m\r\n");
409 sysadm 1.38 press_any_key();
410 sysadm 1.39
411     goto cleanup;
412 sysadm 1.38 }
413 sysadm 1.29 }
414     }
415    
416 sysadm 1.38 for (int j = 0; j < MAX_PROCESS_BAR_LEN && !sock_connected && !SYS_server_exit; j++)
417 sysadm 1.1 {
418 sysadm 1.82 #ifdef HAVE_SYS_EPOLL_H
419 sysadm 1.38 nfds = epoll_wait(epollfd, events, MAX_EVENTS, 500); // 0.5 second
420 sysadm 1.82 ret = nfds;
421     #else
422     pfds[0].fd = sock;
423     pfds[0].events = POLLOUT;
424     pfds[1].fd = STDIN_FILENO;
425     pfds[1].events = POLLIN;
426     nfds = 2;
427     ret = poll(pfds, (nfds_t)nfds, 500); // 0.5 second
428     #endif
429 sysadm 1.29
430 sysadm 1.82 if (ret < 0)
431 sysadm 1.20 {
432 sysadm 1.29 if (errno != EINTR)
433     {
434 sysadm 1.82 #ifdef HAVE_SYS_EPOLL_H
435 sysadm 1.38 log_error("epoll_wait() error (%d)\n", errno);
436 sysadm 1.82 #else
437     log_error("poll() error (%d)\n", errno);
438     #endif
439 sysadm 1.39 break;
440 sysadm 1.29 }
441 sysadm 1.20 }
442 sysadm 1.82 else if (ret == 0) // timeout
443 sysadm 1.38 {
444     process_bar(j + 1, MAX_PROCESS_BAR_LEN);
445     }
446     else // ret > 0
447 sysadm 1.14 {
448 sysadm 1.38 for (int i = 0; i < nfds; i++)
449 sysadm 1.29 {
450 sysadm 1.82 #ifdef HAVE_SYS_EPOLL_H
451 sysadm 1.38 if (events[i].data.fd == sock)
452 sysadm 1.82 #else
453     if (pfds[i].fd == sock && (pfds[i].revents & POLLOUT))
454     #endif
455 sysadm 1.38 {
456     len = sizeof(error);
457     if (getsockopt(sock, SOL_SOCKET, SO_ERROR, &error, (socklen_t *)&len) < 0)
458     {
459     log_error("getsockopt() error (%d) !\n", error);
460 sysadm 1.39 goto cleanup;
461 sysadm 1.38 }
462     if (error == 0)
463     {
464     sock_connected = 1;
465     }
466     }
467 sysadm 1.82 #ifdef HAVE_SYS_EPOLL_H
468 sysadm 1.38 else if (events[i].data.fd == STDIN_FILENO)
469 sysadm 1.82 #else
470     else if (pfds[i].fd == STDIN_FILENO && (pfds[i].revents & POLLIN))
471     #endif
472 sysadm 1.38 {
473 sysadm 1.84 do
474     {
475     ch = igetch(0);
476     } while (ch == 0);
477 sysadm 1.45 if (ch == Ctrl('C') || ch == KEY_ESC)
478 sysadm 1.38 {
479 sysadm 1.39 goto cleanup;
480 sysadm 1.38 }
481     }
482 sysadm 1.29 }
483 sysadm 1.14 }
484 sysadm 1.12 }
485 sysadm 1.38 if (SYS_server_exit)
486     {
487 sysadm 1.39 goto cleanup;
488 sysadm 1.38 }
489     if (!sock_connected)
490 sysadm 1.12 {
491 sysadm 1.57 prints("\033[1;31m连接失败！\033[m\r\n");
492 sysadm 1.14 press_any_key();
493 sysadm 1.39
494     goto cleanup;
495 sysadm 1.12 }
496 sysadm 1.29
497 sysadm 1.31 tos = IPTOS_LOWDELAY;
498     if (setsockopt(sock, IPPROTO_IP, IP_TOS, &tos, sizeof(tos)) < 0)
499     {
500     log_error("setsockopt IP_TOS=%d error (%d)\n", tos, errno);
501     }
502 sysadm 1.14
503 sysadm 1.63 sock_len = sizeof(sin);
504     if (getsockname(sock, (struct sockaddr *)&sin, &sock_len) < 0)
505     {
506     log_error("getsockname() error: %d", errno);
507     goto cleanup;
508     }
509    
510     strncpy(local_addr, inet_ntoa(sin.sin_addr), sizeof(local_addr) - 1);
511     local_addr[sizeof(local_addr) - 1] = '\0';
512     local_port = ntohs(sin.sin_port);
513    
514 sysadm 1.84 if (bbsnet_conf[n].use_ssh)
515     {
516     session = ssh_new();
517     if (session == NULL)
518     {
519     log_error("ssh_new() error\n");
520     goto cleanup;
521     }
522    
523     if (ssh_options_set(session, SSH_OPTIONS_FD, &sock) < 0 ||
524     ssh_options_set(session, SSH_OPTIONS_PROCESS_CONFIG, &ssh_process_config) < 0 ||
525     ssh_options_set(session, SSH_OPTIONS_HOST, bbsnet_conf[n].ip) < 0 ||
526     ssh_options_set(session, SSH_OPTIONS_USER, remote_user) < 0 ||
527     ssh_options_set(session, SSH_OPTIONS_HOSTKEYS, "+ssh-rsa") < 0 ||
528     ssh_options_set(session, SSH_OPTIONS_LOG_VERBOSITY, &ssh_log_level) < 0)
529     {
530     log_error("Error setting SSH options: %s\n", ssh_get_error(session));
531     goto cleanup;
532     }
533    
534     while (!SYS_server_exit)
535     {
536     ret = ssh_connect(session);
537     if (ret == SSH_OK)
538     {
539     break;
540     }
541     else if (ret == SSH_ERROR)
542     {
543     log_error("ssh_connect() error\n");
544     goto cleanup;
545     }
546     }
547    
548     ssh_set_blocking(session, 0);
549    
550     for (int i = 0; !SYS_server_exit;)
551     {
552     ret = ssh_userauth_password(session, NULL, remote_pass);
553     if (ret == SSH_AUTH_SUCCESS)
554     {
555     break;
556     }
557     else if (ret == SSH_AUTH_AGAIN)
558     {
559     #ifdef _DEBUG
560     log_error("ssh_userauth_password() error: SSH_AUTH_AGAIN\n");
561     #endif
562     }
563     else if (ret == SSH_AUTH_ERROR)
564     {
565     log_error("ssh_userauth_password() error: %d\n", ret);
566     goto cleanup;
567     }
568     else // if (ret == SSH_AUTH_DENIED)
569     {
570     prints("\033[1;31m身份验证失败！\033[m\r\n");
571     i++;
572     if (i < BBS_login_retry_times)
573     {
574     prints("请输入密码: ");
575     iflush();
576     if (str_input(remote_pass, sizeof(remote_pass), NOECHO) < 0)
577     {
578     goto cleanup;
579     }
580     if (remote_pass[0] == '\0')
581     {
582     goto cleanup;
583     }
584     }
585     else
586     {
587     goto cleanup;
588     }
589     }
590     }
591    
592     channel = ssh_channel_new(session);
593     if (channel == NULL)
594     {
595     log_error("ssh_channel_new() error\n");
596     goto cleanup;
597     }
598    
599     while (!SYS_server_exit)
600     {
601     ret = ssh_channel_open_session(channel);
602     if (ret == SSH_OK)
603     {
604     break;
605     }
606     else if (ret == SSH_ERROR)
607     {
608     log_error("ssh_channel_open_session() error\n");
609     goto cleanup;
610     }
611     }
612    
613     while (!SYS_server_exit)
614     {
615     ret = ssh_channel_request_pty(channel);
616     if (ret == SSH_OK)
617     {
618     break;
619     }
620     else if (ret == SSH_ERROR)
621     {
622     log_error("ssh_channel_request_pty() error\n");
623     goto cleanup;
624     }
625     }
626    
627     while (!SYS_server_exit)
628     {
629     ret = ssh_channel_request_shell(channel);
630     if (ret == SSH_OK)
631     {
632     break;
633     }
634     else if (ret == SSH_ERROR)
635     {
636     log_error("ssh_channel_request_shell() error\n");
637     goto cleanup;
638     }
639     }
640     }
641    
642 sysadm 1.57 prints("\033[1;31m连接成功！\033[m\r\n");
643 sysadm 1.33 iflush();
644 sysadm 1.63 log_common("BBSNET connect to %s:%d from %s:%d by [%s]\n",
645     remote_addr, remote_port, local_addr, local_port, BBS_username);
646 sysadm 1.14
647 sysadm 1.71 snprintf(tocode, sizeof(tocode), "%s%s", bbsnet_conf[n].charset,
648     (strcasecmp(stdio_charset, bbsnet_conf[n].charset) == 0 ? "" : "//IGNORE"));
649 sysadm 1.68 input_cd = iconv_open(tocode, stdio_charset);
650 sysadm 1.60 if (input_cd == (iconv_t)(-1))
651     {
652 sysadm 1.68 log_error("iconv_open(%s->%s) error: %d\n", stdio_charset, tocode, errno);
653 sysadm 1.60 goto cleanup;
654     }
655 sysadm 1.68
656 sysadm 1.71 snprintf(tocode, sizeof(tocode), "%s%s", stdio_charset,
657     (strcasecmp(bbsnet_conf[n].charset, stdio_charset) == 0 ? "" : "//TRANSLIT"));
658 sysadm 1.70 output_cd = iconv_open(tocode, bbsnet_conf[n].charset);
659 sysadm 1.67 if (output_cd == (iconv_t)(-1))
660 sysadm 1.60 {
661 sysadm 1.68 log_error("iconv_open(%s->%s) error: %d\n", bbsnet_conf[n].charset, tocode, errno);
662 sysadm 1.60 iconv_close(input_cd);
663     goto cleanup;
664     }
665    
666 sysadm 1.82 #ifdef HAVE_SYS_EPOLL_H
667 sysadm 1.38 ev.events = EPOLLIN | EPOLLOUT | EPOLLET;
668     ev.data.fd = sock;
669     if (epoll_ctl(epollfd, EPOLL_CTL_MOD, sock, &ev) == -1)
670     {
671     log_error("epoll_ctl(socket) error (%d)\n", errno);
672 sysadm 1.39 goto cleanup;
673 sysadm 1.38 }
674    
675 sysadm 1.59 ev.events = EPOLLOUT | EPOLLET;
676 sysadm 1.38 ev.data.fd = STDOUT_FILENO;
677     if (epoll_ctl(epollfd, EPOLL_CTL_ADD, STDOUT_FILENO, &ev) == -1)
678     {
679     log_error("epoll_ctl(STDOUT_FILENO) error (%d)\n", errno);
680 sysadm 1.39 goto cleanup;
681 sysadm 1.38 }
682 sysadm 1.82 #endif
683 sysadm 1.38
684 sysadm 1.50 BBS_last_access_tm = t_used = time(NULL);
685 sysadm 1.14 loop = 1;
686    
687 sysadm 1.26 while (loop && !SYS_server_exit)
688 sysadm 1.12 {
689 sysadm 1.47 if (SSH_v2 && ssh_channel_is_closed(SSH_channel))
690     {
691     log_error("SSH channel is closed\n");
692     loop = 0;
693     break;
694     }
695    
696 sysadm 1.84 if (bbsnet_conf[n].use_ssh && ssh_channel_is_closed(channel))
697     {
698     log_error("Remote SSH channel is closed\n");
699     loop = 0;
700     break;
701     }
702    
703 sysadm 1.82 #ifdef HAVE_SYS_EPOLL_H
704 sysadm 1.38 nfds = epoll_wait(epollfd, events, MAX_EVENTS, 100); // 0.1 second
705 sysadm 1.82 ret = nfds;
706     #else
707     pfds[0].fd = STDIN_FILENO;
708     pfds[0].events = POLLIN;
709     pfds[1].fd = sock;
710     pfds[1].events = POLLIN | POLLOUT;
711     pfds[2].fd = STDOUT_FILENO;
712     pfds[2].events = POLLOUT;
713     nfds = 3;
714     ret = poll(pfds, (nfds_t)nfds, 100); // 0.1 second
715     #endif
716 sysadm 1.33
717 sysadm 1.82 if (ret < 0)
718 sysadm 1.14 {
719 sysadm 1.38 if (errno != EINTR)
720 sysadm 1.14 {
721 sysadm 1.82 #ifdef HAVE_SYS_EPOLL_H
722 sysadm 1.38 log_error("epoll_wait() error (%d)\n", errno);
723 sysadm 1.82 #else
724     log_error("poll() error (%d)\n", errno);
725     #endif
726 sysadm 1.38 break;
727 sysadm 1.14 }
728 sysadm 1.38 continue;
729 sysadm 1.14 }
730 sysadm 1.82 else if (ret == 0) // timeout
731 sysadm 1.1 {
732 sysadm 1.78 if (time(NULL) - BBS_last_access_tm >= BBS_max_user_idle_time)
733 sysadm 1.28 {
734 sysadm 1.38 break;
735 sysadm 1.28 }
736 sysadm 1.1 }
737 sysadm 1.38
738     for (int i = 0; i < nfds; i++)
739 sysadm 1.1 {
740 sysadm 1.82 #ifdef HAVE_SYS_EPOLL_H
741 sysadm 1.59 if (events[i].data.fd == STDIN_FILENO)
742 sysadm 1.82 #else
743     if (pfds[i].fd == STDIN_FILENO && (pfds[i].revents & POLLIN))
744     #endif
745 sysadm 1.14 {
746 sysadm 1.38 stdin_read_wait = 1;
747 sysadm 1.59 }
748    
749 sysadm 1.82 #ifdef HAVE_SYS_EPOLL_H
750 sysadm 1.59 if (events[i].data.fd == sock)
751 sysadm 1.82 #else
752     if (pfds[i].fd == sock)
753     #endif
754 sysadm 1.59 {
755 sysadm 1.82 #ifdef HAVE_SYS_EPOLL_H
756 sysadm 1.59 if (events[i].events & EPOLLIN)
757 sysadm 1.82 #else
758     if (pfds[i].revents & POLLIN)
759     #endif
760 sysadm 1.59 {
761     sock_read_wait = 1;
762     }
763 sysadm 1.82
764     #ifdef HAVE_SYS_EPOLL_H
765 sysadm 1.59 if (events[i].events & EPOLLOUT)
766 sysadm 1.82 #else
767     if (pfds[i].revents & POLLOUT)
768     #endif
769 sysadm 1.59 {
770     sock_write_wait = 1;
771     }
772     }
773    
774 sysadm 1.82 #ifdef HAVE_SYS_EPOLL_H
775 sysadm 1.59 if (events[i].data.fd == STDOUT_FILENO)
776 sysadm 1.82 #else
777     if (pfds[i].fd == STDOUT_FILENO && (pfds[i].revents & POLLOUT))
778 sysadm 1.84 #endif
779 sysadm 1.59 {
780     stdout_write_wait = 1;
781     }
782     }
783    
784     if (stdin_read_wait)
785     {
786     while (input_buf_len < sizeof(input_buf) && !SYS_server_exit)
787     {
788     if (SSH_v2)
789 sysadm 1.33 {
790 sysadm 1.59 ret = ssh_channel_read_nonblocking(SSH_channel, input_buf + input_buf_len, sizeof(input_buf) - (uint32_t)input_buf_len, 0);
791     if (ret == SSH_ERROR)
792 sysadm 1.47 {
793 sysadm 1.59 log_error("ssh_channel_read_nonblocking() error: %s\n", ssh_get_error(SSH_session));
794     loop = 0;
795     break;
796 sysadm 1.47 }
797 sysadm 1.59 else if (ret == SSH_EOF)
798 sysadm 1.47 {
799 sysadm 1.59 stdin_read_wait = 0;
800     loop = 0;
801     break;
802 sysadm 1.47 }
803 sysadm 1.59 else if (ret == 0)
804 sysadm 1.33 {
805 sysadm 1.72 // Send NO-OP to remote server
806     input_buf[input_buf_len] = '\0';
807     input_buf_len++;
808 sysadm 1.73 BBS_last_access_tm = time(NULL);
809 sysadm 1.72
810 sysadm 1.59 stdin_read_wait = 0;
811     break; // Check whether channel is still open
812 sysadm 1.38 }
813 sysadm 1.59 }
814     else
815     {
816     ret = (int)read(STDIN_FILENO, input_buf + input_buf_len, sizeof(input_buf) - (size_t)input_buf_len);
817     }
818     if (ret < 0)
819     {
820     if (errno == EAGAIN || errno == EWOULDBLOCK)
821 sysadm 1.38 {
822     stdin_read_wait = 0;
823     break;
824     }
825 sysadm 1.59 else if (errno == EINTR)
826     {
827     continue;
828     }
829 sysadm 1.38 else
830     {
831 sysadm 1.59 log_error("read(STDIN) error (%d)\n", errno);
832     loop = 0;
833     break;
834     }
835     }
836     else if (ret == 0) // broken pipe
837     {
838     #ifdef _DEBUG
839     log_error("read(STDIN) EOF\n");
840     #endif
841     stdin_read_wait = 0;
842     loop = 0;
843     break;
844     }
845     else
846     {
847     input_buf_len += ret;
848     BBS_last_access_tm = time(NULL);
849 sysadm 1.58
850 sysadm 1.59 // Refresh current action while user input
851     if (user_online_update("BBS_NET") < 0)
852     {
853     log_error("user_online_update(BBS_NET) error\n");
854     }
855 sysadm 1.58
856 sysadm 1.59 continue;
857 sysadm 1.33 }
858 sysadm 1.36 }
859 sysadm 1.59 }
860 sysadm 1.29
861 sysadm 1.59 if (sock_write_wait)
862     {
863 sysadm 1.60 if (input_buf_offset < input_buf_len)
864 sysadm 1.36 {
865 sysadm 1.72 // For debug
866     #ifdef _DEBUG
867     for (int j = input_buf_offset; j < input_buf_len; j++)
868     {
869     log_error("Debug input: <--[%u]\n", (input_buf[j] + 256) % 256);
870     }
871     #endif
872    
873 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);
874 sysadm 1.60 if (ret < 0)
875     {
876 sysadm 1.66 log_error("io_buf_conv(input, %d, %d, %d) error\n", input_buf_len, input_buf_offset, input_conv_len);
877 sysadm 1.71 input_buf_len = input_buf_offset; // Discard invalid sequence
878 sysadm 1.60 }
879 sysadm 1.72
880     // For debug
881     #ifdef _DEBUG
882     for (int j = input_conv_offset; j < input_conv_len; j++)
883     {
884     log_error("Debug input_conv: <--[%u]\n", (input_conv[j] + 256) % 256);
885     }
886     #endif
887 sysadm 1.60 }
888    
889     while (input_conv_offset < input_conv_len && !SYS_server_exit)
890     {
891 sysadm 1.84 if (bbsnet_conf[n].use_ssh)
892     {
893     ret = ssh_channel_write(channel, input_conv + input_conv_offset, (uint32_t)(input_conv_len - input_conv_offset));
894     if (ret == SSH_ERROR)
895     {
896     log_error("ssh_channel_write() error: %s\n", ssh_get_error(session));
897     loop = 0;
898     break;
899     }
900     }
901     else
902     {
903     ret = (int)write(sock, input_conv + input_conv_offset, (size_t)(input_conv_len - input_conv_offset));
904     }
905 sysadm 1.59 if (ret < 0)
906 sysadm 1.36 {
907 sysadm 1.59 if (errno == EAGAIN || errno == EWOULDBLOCK)
908 sysadm 1.36 {
909 sysadm 1.59 sock_write_wait = 0;
910     break;
911 sysadm 1.38 }
912 sysadm 1.59 else if (errno == EINTR)
913 sysadm 1.38 {
914 sysadm 1.59 continue;
915     }
916     else
917     {
918     log_error("write(socket) error (%d)\n", errno);
919 sysadm 1.36 loop = 0;
920 sysadm 1.38 break;
921     }
922 sysadm 1.59 }
923     else if (ret == 0) // broken pipe
924     {
925     #ifdef _DEBUG
926     log_error("write(socket) EOF\n");
927     #endif
928     sock_write_wait = 0;
929     loop = 0;
930     break;
931     }
932     else
933     {
934 sysadm 1.60 input_conv_offset += ret;
935     if (input_conv_offset >= input_conv_len) // Output buffer complete
936 sysadm 1.38 {
937 sysadm 1.60 input_conv_offset = 0;
938     input_conv_len = 0;
939 sysadm 1.59 break;
940 sysadm 1.36 }
941 sysadm 1.59 continue;
942 sysadm 1.36 }
943 sysadm 1.14 }
944 sysadm 1.59 }
945 sysadm 1.36
946 sysadm 1.59 if (sock_read_wait)
947     {
948     while (output_buf_len < sizeof(output_buf) && !SYS_server_exit)
949 sysadm 1.14 {
950 sysadm 1.84 if (bbsnet_conf[n].use_ssh)
951     {
952     ret = ssh_channel_read_nonblocking(channel, output_buf + output_buf_len,
953     (uint32_t)(sizeof(output_buf) - (size_t)output_buf_len), 0);
954     if (ret == SSH_ERROR)
955     {
956     log_error("ssh_channel_read_nonblocking() error: %s\n", ssh_get_error(session));
957     loop = 0;
958     break;
959     }
960     else if (ret == SSH_EOF)
961     {
962     sock_read_wait = 0;
963     loop = 0;
964     break;
965     }
966     else if (ret == 0)
967     {
968     sock_read_wait = 0;
969     break;
970     }
971     }
972     else
973     {
974     ret = (int)read(sock, output_buf + output_buf_len, sizeof(output_buf) - (size_t)output_buf_len);
975     }
976 sysadm 1.59 if (ret < 0)
977 sysadm 1.14 {
978 sysadm 1.59 if (errno == EAGAIN || errno == EWOULDBLOCK)
979 sysadm 1.38 {
980 sysadm 1.59 sock_read_wait = 0;
981     break;
982 sysadm 1.38 }
983 sysadm 1.59 else if (errno == EINTR)
984 sysadm 1.33 {
985 sysadm 1.59 continue;
986 sysadm 1.38 }
987     else
988     {
989 sysadm 1.59 log_error("read(socket) error (%d)\n", errno);
990     loop = 0;
991     break;
992 sysadm 1.33 }
993     }
994 sysadm 1.59 else if (ret == 0) // broken pipe
995     {
996     #ifdef _DEBUG
997     log_error("read(socket) EOF\n");
998     #endif
999     sock_read_wait = 0;
1000     loop = 0;
1001     break;
1002     }
1003     else
1004     {
1005     output_buf_len += ret;
1006     continue;
1007     }
1008 sysadm 1.36 }
1009 sysadm 1.59 }
1010 sysadm 1.36
1011 sysadm 1.59 if (stdout_write_wait)
1012     {
1013 sysadm 1.60 if (output_buf_offset < output_buf_len)
1014     {
1015 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);
1016 sysadm 1.60 if (ret < 0)
1017     {
1018 sysadm 1.66 log_error("io_buf_conv(output, %d, %d, %d) error\n", output_buf_len, output_buf_offset, output_conv_len);
1019 sysadm 1.71 output_buf_len = output_buf_offset; // Discard invalid sequence
1020 sysadm 1.60 }
1021     }
1022    
1023     while (output_conv_offset < output_conv_len && !SYS_server_exit)
1024 sysadm 1.36 {
1025 sysadm 1.59 if (SSH_v2)
1026 sysadm 1.36 {
1027 sysadm 1.60 ret = ssh_channel_write(SSH_channel, output_conv + output_conv_offset, (uint32_t)(output_conv_len - output_conv_offset));
1028 sysadm 1.59 if (ret == SSH_ERROR)
1029 sysadm 1.47 {
1030 sysadm 1.59 log_error("ssh_channel_write() error: %s\n", ssh_get_error(SSH_session));
1031     loop = 0;
1032     break;
1033 sysadm 1.47 }
1034 sysadm 1.59 }
1035     else
1036     {
1037 sysadm 1.60 ret = (int)write(STDOUT_FILENO, output_conv + output_conv_offset, (size_t)(output_conv_len - output_conv_offset));
1038 sysadm 1.59 }
1039     if (ret < 0)
1040     {
1041     if (errno == EAGAIN || errno == EWOULDBLOCK)
1042 sysadm 1.47 {
1043 sysadm 1.59 stdout_write_wait = 0;
1044     break;
1045 sysadm 1.47 }
1046 sysadm 1.59 else if (errno == EINTR)
1047 sysadm 1.38 {
1048 sysadm 1.59 continue;
1049 sysadm 1.38 }
1050 sysadm 1.59 else
1051 sysadm 1.33 {
1052 sysadm 1.59 log_error("write(STDOUT) error (%d)\n", errno);
1053 sysadm 1.36 loop = 0;
1054 sysadm 1.38 break;
1055     }
1056 sysadm 1.59 }
1057     else if (ret == 0) // broken pipe
1058     {
1059     #ifdef _DEBUG
1060     log_error("write(STDOUT) EOF\n");
1061     #endif
1062     stdout_write_wait = 0;
1063     loop = 0;
1064     break;
1065     }
1066     else
1067     {
1068 sysadm 1.60 output_conv_offset += ret;
1069     if (output_conv_offset >= output_conv_len) // Output buffer complete
1070 sysadm 1.38 {
1071 sysadm 1.60 output_conv_offset = 0;
1072     output_conv_len = 0;
1073 sysadm 1.59 break;
1074 sysadm 1.36 }
1075 sysadm 1.59 continue;
1076 sysadm 1.36 }
1077 sysadm 1.14 }
1078 sysadm 1.1 }
1079     }
1080    
1081 sysadm 1.60 iconv_close(input_cd);
1082     iconv_close(output_cd);
1083    
1084 sysadm 1.39 cleanup:
1085 sysadm 1.82 #ifdef HAVE_SYS_EPOLL_H
1086 sysadm 1.39 if (close(epollfd) < 0)
1087     {
1088     log_error("close(epoll) error (%d)\n");
1089     }
1090 sysadm 1.82 #endif
1091 sysadm 1.39
1092 sysadm 1.84 if (bbsnet_conf[n].use_ssh)
1093     {
1094     ssh_channel_free(channel);
1095     ssh_disconnect(session);
1096     ssh_free(session);
1097     }
1098    
1099 sysadm 1.36 // Restore STDIN/STDOUT flags
1100     fcntl(STDIN_FILENO, F_SETFL, flags_stdin);
1101     fcntl(STDOUT_FILENO, F_SETFL, flags_stdout);
1102    
1103 sysadm 1.14 if (close(sock) == -1)
1104     {
1105     log_error("Close socket failed\n");
1106     }
1107 sysadm 1.1
1108 sysadm 1.50 t_used = time(NULL) - t_used;
1109 sysadm 1.14 tm_used = gmtime(&t_used);
1110 sysadm 1.8
1111 sysadm 1.46 log_common("BBSNET disconnect, %d days %d hours %d minutes %d seconds used\n",
1112 sysadm 1.47 tm_used->tm_mday - 1, tm_used->tm_hour, tm_used->tm_min,
1113     tm_used->tm_sec);
1114 sysadm 1.8
1115 sysadm 1.72 BBS_last_access_tm = time(NULL);
1116    
1117 sysadm 1.14 return 0;
1118 sysadm 1.1 }
1119    
1120 sysadm 1.74 static int bbsnet_refresh()
1121 sysadm 1.1 {
1122 sysadm 1.14 clearscr();
1123 sysadm 1.84
1124     moveto(1, 1);
1125     prints(" ------------------------------------------------------------------------------ ");
1126 sysadm 1.20 for (int i = 2; i < 19; i++)
1127 sysadm 1.14 {
1128 sysadm 1.84 moveto(i, 1);
1129 sysadm 1.23 prints("|");
1130 sysadm 1.84 moveto(i, 80);
1131 sysadm 1.23 prints("|");
1132 sysadm 1.14 }
1133 sysadm 1.84 moveto(19, 1);
1134     prints("|------------------------------------------------------------------------------|");
1135     moveto(22, 1);
1136     prints(" ------------------------------------------------------------------------------ ");
1137     moveto(23, 1);
1138     prints(" [\033[1;32mCtrl+C\033[m]退出");
1139 sysadm 1.13
1140 sysadm 1.14 iflush();
1141 sysadm 1.1
1142 sysadm 1.14 return 0;
1143 sysadm 1.1 }
1144    
1145 sysadm 1.74 static int bbsnet_selchange()
1146 sysadm 1.1 {
1147 sysadm 1.43 int i = bbsnet_menu.menu_item_pos[0];
1148    
1149 sysadm 1.84 moveto(20, 1);
1150 sysadm 1.14 clrtoeol();
1151 sysadm 1.84 prints("|\033[1m单位: \033[1;33m%s\033[m%*s 站名: \033[1;33m%s\033[m",
1152     bbsnet_conf[i].host2, 20 - str_length(bbsnet_conf[i].host2, 1), "", bbsnet_conf[i].host1);
1153     moveto(20, 80);
1154 sysadm 1.23 prints("|");
1155 sysadm 1.84 moveto(21, 1);
1156 sysadm 1.14 clrtoeol();
1157 sysadm 1.84 prints("|\033[1m连往: \033[1;33m%-20s\033[m 端口: \033[1;33m%-5d\033[m 类型: \033[1;33m%s\033[m",
1158     bbsnet_conf[i].ip, bbsnet_conf[i].port, (bbsnet_conf[i].use_ssh ? "SSH" : "Telnet"));
1159     moveto(21, 80);
1160 sysadm 1.23 prints("|");
1161 sysadm 1.14 iflush();
1162 sysadm 1.1
1163 sysadm 1.14 return 0;
1164 sysadm 1.1 }
1165    
1166 sysadm 1.83 int bbs_net()
1167 sysadm 1.1 {
1168 sysadm 1.43 int ch, i;
1169 sysadm 1.1
1170 sysadm 1.17 load_bbsnet_conf(CONF_BBSNET);
1171 sysadm 1.1
1172 sysadm 1.14 bbsnet_refresh();
1173 sysadm 1.41 display_menu(&bbsnet_menu);
1174 sysadm 1.43 bbsnet_selchange();
1175 sysadm 1.14
1176 sysadm 1.26 while (!SYS_server_exit)
1177 sysadm 1.1 {
1178 sysadm 1.39 ch = igetch(100);
1179 sysadm 1.52
1180 sysadm 1.71 if (ch != KEY_NULL && ch != KEY_TIMEOUT)
1181     {
1182     BBS_last_access_tm = time(NULL);
1183     }
1184 sysadm 1.64
1185 sysadm 1.14 switch (ch)
1186     {
1187 sysadm 1.47 case KEY_NULL: // broken pipe
1188 sysadm 1.64 log_error("KEY_NULL\n");
1189 sysadm 1.40 goto cleanup;
1190 sysadm 1.14 case KEY_TIMEOUT:
1191 sysadm 1.78 if (time(NULL) - BBS_last_access_tm >= BBS_max_user_idle_time)
1192 sysadm 1.14 {
1193 sysadm 1.64 log_error("User input timeout\n");
1194 sysadm 1.40 goto cleanup;
1195 sysadm 1.14 }
1196 sysadm 1.29 continue;
1197 sysadm 1.64 case KEY_ESC:
1198     case Ctrl('C'): // user cancel
1199     goto cleanup;
1200 sysadm 1.14 case CR:
1201 sysadm 1.43 bbsnet_connect(bbsnet_menu.menu_item_pos[0]);
1202 sysadm 1.84 // Force cleanup anything remaining in the output buffer
1203     clearscr();
1204     iflush();
1205     // Clear screen and redraw menu
1206 sysadm 1.14 bbsnet_refresh();
1207 sysadm 1.41 display_menu(&bbsnet_menu);
1208 sysadm 1.43 bbsnet_selchange();
1209 sysadm 1.14 break;
1210     case KEY_UP:
1211     for (i = 0; i < STATION_PER_LINE; i++)
1212 sysadm 1.20 {
1213 sysadm 1.14 menu_control(&bbsnet_menu, KEY_UP);
1214 sysadm 1.20 }
1215 sysadm 1.43 bbsnet_selchange();
1216 sysadm 1.14 break;
1217     case KEY_DOWN:
1218     for (i = 0; i < STATION_PER_LINE; i++)
1219 sysadm 1.20 {
1220 sysadm 1.14 menu_control(&bbsnet_menu, KEY_DOWN);
1221 sysadm 1.20 }
1222 sysadm 1.43 bbsnet_selchange();
1223 sysadm 1.14 break;
1224     case KEY_LEFT:
1225     menu_control(&bbsnet_menu, KEY_UP);
1226 sysadm 1.43 bbsnet_selchange();
1227 sysadm 1.14 break;
1228     case KEY_RIGHT:
1229     menu_control(&bbsnet_menu, KEY_DOWN);
1230 sysadm 1.43 bbsnet_selchange();
1231     break;
1232 sysadm 1.44 case KEY_HOME:
1233 sysadm 1.43 case KEY_PGUP:
1234     menu_control(&bbsnet_menu, KEY_PGUP);
1235     bbsnet_selchange();
1236 sysadm 1.14 break;
1237 sysadm 1.44 case KEY_END:
1238     case KEY_PGDN:
1239     menu_control(&bbsnet_menu, KEY_PGDN);
1240     bbsnet_selchange();
1241     break;
1242 sysadm 1.14 default:
1243     menu_control(&bbsnet_menu, ch);
1244 sysadm 1.43 bbsnet_selchange();
1245 sysadm 1.14 break;
1246     }
1247 sysadm 1.1 }
1248    
1249 sysadm 1.40 cleanup:
1250     unload_bbsnet_conf();
1251    
1252 sysadm 1.14 return 0;
1253 sysadm 1.1 }
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