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

Annotation of /lbbs/src/io.c

Parent Directory Parent Directory | Revision Log Revision Log

Revision 1.71 - (hide annotations)
Sun Nov 23 06:43:51 2025 UTC (3 months, 3 weeks ago) by sysadm
Branch: MAIN
Changes since 1.70: +9 -17 lines
Content type: text/x-csrc 
Refine
1 sysadm 1.62 /* SPDX-License-Identifier: GPL-3.0-or-later */
2     /*
3     * io
4     * - basic terminal-based user input / output features
5     *
6 sysadm 1.63 * Copyright (C) 2004-2025 Leaflet <leaflet@leafok.com>
7 sysadm 1.62 */
8 sysadm 1.1
9 sysadm 1.65 #ifdef HAVE_CONFIG_H
10     #include "config.h"
11     #endif
12    
13 sysadm 1.47 #include "common.h"
14 sysadm 1.1 #include "io.h"
15 sysadm 1.16 #include "log.h"
16 sysadm 1.22 #include <errno.h>
17 sysadm 1.47 #include <fcntl.h>
18     #include <stdarg.h>
19 sysadm 1.1 #include <stdio.h>
20 sysadm 1.28 #include <string.h>
21 sysadm 1.9 #include <time.h>
22     #include <unistd.h>
23 sysadm 1.47 #include <sys/ioctl.h>
24 sysadm 1.22 #include <sys/select.h>
25 sysadm 1.47 #include <libssh/callbacks.h>
26 sysadm 1.39 #include <libssh/libssh.h>
27     #include <libssh/server.h>
28 sysadm 1.1
29 sysadm 1.67 #ifdef HAVE_SYS_EPOLL_H
30     #include <sys/epoll.h>
31     #else
32     #include <poll.h>
33     #endif
34    
35 sysadm 1.68 enum _io_constant_t
36     {
37     OUTPUT_BUF_SIZE = 8192,
38     };
39    
40 sysadm 1.64 const char BBS_default_charset[CHARSET_MAX_LEN + 1] = "UTF-8";
41     char stdio_charset[CHARSET_MAX_LEN + 1] = "UTF-8";
42 sysadm 1.55
43 sysadm 1.67 #ifdef HAVE_SYS_EPOLL_H
44 sysadm 1.66 // epoll for STDIO
45     static int stdin_epollfd = -1;
46     static int stdout_epollfd = -1;
47 sysadm 1.67 #endif
48    
49     static int stdin_flags = 0;
50     static int stdout_flags = 0;
51 sysadm 1.66
52 sysadm 1.55 // static input / output buffer
53     static char stdin_buf[LINE_BUFFER_LEN];
54 sysadm 1.68 static char stdout_buf[OUTPUT_BUF_SIZE];
55 sysadm 1.55 static int stdin_buf_len = 0;
56 sysadm 1.57 static int stdout_buf_len = 0;
57 sysadm 1.55 static int stdin_buf_offset = 0;
58 sysadm 1.57 static int stdout_buf_offset = 0;
59 sysadm 1.55
60 sysadm 1.57 static char stdin_conv[LINE_BUFFER_LEN * 2];
61 sysadm 1.68 static char stdout_conv[OUTPUT_BUF_SIZE * 2];
62 sysadm 1.57 static int stdin_conv_len = 0;
63 sysadm 1.55 static int stdout_conv_len = 0;
64 sysadm 1.57 static int stdin_conv_offset = 0;
65 sysadm 1.55 static int stdout_conv_offset = 0;
66    
67     static iconv_t stdin_cd = NULL;
68     static iconv_t stdout_cd = NULL;
69 sysadm 1.1
70 sysadm 1.66 int io_init(void)
71     {
72 sysadm 1.67 #ifdef HAVE_SYS_EPOLL_H
73 sysadm 1.66 struct epoll_event ev;
74    
75     if (stdin_epollfd == -1)
76     {
77     stdin_epollfd = epoll_create1(0);
78     if (stdin_epollfd == -1)
79     {
80     log_error("epoll_create1() error (%d)\n", errno);
81     return -1;
82     }
83    
84     ev.events = EPOLLIN;
85     ev.data.fd = STDIN_FILENO;
86     if (epoll_ctl(stdin_epollfd, EPOLL_CTL_ADD, STDIN_FILENO, &ev) == -1)
87     {
88     log_error("epoll_ctl(STDIN_FILENO) error (%d)\n", errno);
89     if (close(stdin_epollfd) < 0)
90     {
91     log_error("close(stdin_epollfd) error (%d)\n");
92     }
93     stdin_epollfd = -1;
94     return -1;
95     }
96    
97     stdin_flags = fcntl(STDIN_FILENO, F_GETFL, 0);
98     fcntl(STDIN_FILENO, F_SETFL, stdin_flags | O_NONBLOCK);
99     }
100    
101     if (stdout_epollfd == -1)
102     {
103     stdout_epollfd = epoll_create1(0);
104     if (stdout_epollfd == -1)
105     {
106     log_error("epoll_create1() error (%d)\n", errno);
107     return -1;
108     }
109    
110     ev.events = EPOLLOUT;
111     ev.data.fd = STDOUT_FILENO;
112     if (epoll_ctl(stdout_epollfd, EPOLL_CTL_ADD, STDOUT_FILENO, &ev) == -1)
113     {
114     log_error("epoll_ctl(STDOUT_FILENO) error (%d)\n", errno);
115     if (close(stdout_epollfd) < 0)
116     {
117     log_error("close(stdout_epollfd) error (%d)\n");
118     }
119     stdout_epollfd = -1;
120     return -1;
121     }
122    
123     stdout_flags = fcntl(STDOUT_FILENO, F_GETFL, 0);
124     fcntl(STDOUT_FILENO, F_SETFL, stdout_flags | O_NONBLOCK);
125     }
126 sysadm 1.67 #else
127     if (stdin_flags == 0)
128     {
129     stdin_flags = fcntl(STDIN_FILENO, F_GETFL, 0);
130     fcntl(STDIN_FILENO, F_SETFL, stdin_flags | O_NONBLOCK);
131     }
132    
133     if (stdout_flags == 0)
134     {
135     stdout_flags = fcntl(STDOUT_FILENO, F_GETFL, 0);
136     fcntl(STDOUT_FILENO, F_SETFL, stdout_flags | O_NONBLOCK);
137     }
138     #endif
139 sysadm 1.66
140     return 0;
141     }
142    
143     void io_cleanup(void)
144     {
145 sysadm 1.67 #ifdef HAVE_SYS_EPOLL_H
146 sysadm 1.66 if (stdin_epollfd != -1)
147     {
148     fcntl(STDIN_FILENO, F_SETFL, stdin_flags);
149 sysadm 1.67 stdin_flags = 0;
150 sysadm 1.66
151     if (close(stdin_epollfd) < 0)
152     {
153     log_error("close(stdin_epollfd) error (%d)\n");
154     }
155     stdin_epollfd = -1;
156     }
157    
158     if (stdout_epollfd != -1)
159     {
160     fcntl(STDOUT_FILENO, F_SETFL, stdout_flags);
161 sysadm 1.67 stdout_flags = 0;
162 sysadm 1.66
163     if (close(stdout_epollfd) < 0)
164     {
165     log_error("close(stdout_epollfd) error (%d)\n");
166     }
167     stdout_epollfd = -1;
168     }
169 sysadm 1.67 #else
170     if (stdin_flags != 0)
171     {
172     fcntl(STDIN_FILENO, F_SETFL, stdin_flags);
173     stdin_flags = 0;
174     }
175    
176     if (stdout_flags != 0)
177     {
178     fcntl(STDOUT_FILENO, F_SETFL, stdout_flags);
179     stdout_flags = 0;
180     }
181     #endif
182 sysadm 1.66 }
183    
184 sysadm 1.14 int prints(const char *format, ...)
185 sysadm 1.1 {
186 sysadm 1.68 char buf[OUTPUT_BUF_SIZE];
187 sysadm 1.14 va_list args;
188 sysadm 1.28 int ret;
189 sysadm 1.1
190 sysadm 1.14 va_start(args, format);
191 sysadm 1.28 ret = vsnprintf(buf, sizeof(buf), format, args);
192 sysadm 1.14 va_end(args);
193 sysadm 1.1
194 sysadm 1.30 if (ret > 0)
195 sysadm 1.28 {
196 sysadm 1.68 if (stdout_buf_len + ret > OUTPUT_BUF_SIZE)
197 sysadm 1.30 {
198     iflush();
199     }
200 sysadm 1.31
201 sysadm 1.68 if (stdout_buf_len + ret <= OUTPUT_BUF_SIZE)
202 sysadm 1.30 {
203     memcpy(stdout_buf + stdout_buf_len, buf, (size_t)ret);
204     stdout_buf_len += ret;
205     }
206     else
207     {
208     errno = EAGAIN;
209 sysadm 1.68 ret = (OUTPUT_BUF_SIZE - stdout_buf_len - ret);
210 sysadm 1.35 log_error("Output buffer is full, additional %d is required\n", ret);
211 sysadm 1.30 }
212 sysadm 1.28 }
213 sysadm 1.30
214     return ret;
215     }
216    
217     int outc(char c)
218     {
219     int ret;
220    
221 sysadm 1.68 if (stdout_buf_len + 1 > OUTPUT_BUF_SIZE)
222 sysadm 1.28 {
223 sysadm 1.30 iflush();
224     }
225    
226 sysadm 1.68 if (stdout_buf_len + 1 <= OUTPUT_BUF_SIZE)
227 sysadm 1.30 {
228     stdout_buf[stdout_buf_len] = c;
229     stdout_buf_len++;
230     }
231     else
232     {
233     errno = EAGAIN;
234     ret = -1;
235 sysadm 1.28 }
236    
237     return ret;
238 sysadm 1.1 }
239    
240 sysadm 1.43 int iflush(void)
241 sysadm 1.1 {
242 sysadm 1.67 #ifdef HAVE_SYS_EPOLL_H
243 sysadm 1.66 struct epoll_event events[MAX_EVENTS];
244 sysadm 1.67 #else
245     struct pollfd pfds[1];
246     #endif
247    
248 sysadm 1.66 int nfds;
249 sysadm 1.30 int retry;
250 sysadm 1.28 int ret = 0;
251    
252 sysadm 1.30 // Retry wait / flush for at most 3 times
253     retry = 3;
254     while (retry > 0 && !SYS_server_exit)
255 sysadm 1.28 {
256 sysadm 1.30 retry--;
257    
258 sysadm 1.67 #ifdef HAVE_SYS_EPOLL_H
259 sysadm 1.66 nfds = epoll_wait(stdout_epollfd, events, MAX_EVENTS, 100); // 0.1 second
260 sysadm 1.67 ret = nfds;
261     #else
262     pfds[0].fd = STDOUT_FILENO;
263     pfds[0].events = POLLOUT;
264     nfds = 1;
265     ret = poll(pfds, (nfds_t)nfds, 100); // 0.1 second
266     #endif
267 sysadm 1.28
268 sysadm 1.67 if (ret < 0)
269 sysadm 1.28 {
270 sysadm 1.29 if (errno != EINTR)
271     {
272 sysadm 1.67 #ifdef HAVE_SYS_EPOLL_H
273 sysadm 1.29 log_error("epoll_wait() error (%d)\n", errno);
274 sysadm 1.67 #else
275     log_error("poll() error (%d)\n", errno);
276     #endif
277 sysadm 1.29 break;
278     }
279 sysadm 1.28 continue;
280     }
281 sysadm 1.67 else if (ret == 0) // timeout
282 sysadm 1.28 {
283 sysadm 1.29 continue;
284 sysadm 1.28 }
285 sysadm 1.29
286     for (int i = 0; i < nfds; i++)
287 sysadm 1.28 {
288 sysadm 1.67 #ifdef HAVE_SYS_EPOLL_H
289 sysadm 1.29 if (events[i].data.fd == STDOUT_FILENO)
290 sysadm 1.67 #else
291     if (pfds[i].fd == STDOUT_FILENO && (pfds[i].revents & POLLOUT))
292     #endif
293 sysadm 1.28 {
294 sysadm 1.55 if (stdout_buf_offset < stdout_buf_len)
295     {
296     ret = io_buf_conv(stdout_cd, stdout_buf, &stdout_buf_len, &stdout_buf_offset, stdout_conv, sizeof(stdout_conv), &stdout_conv_len);
297     if (ret < 0)
298     {
299     log_error("io_buf_conv(stdout, %d, %d, %d) error\n", stdout_buf_len, stdout_buf_offset, stdout_conv_len);
300 sysadm 1.60 stdout_buf_len = stdout_buf_offset; // Discard invalid sequence
301 sysadm 1.55 }
302     }
303    
304     while (stdout_conv_offset < stdout_conv_len && !SYS_server_exit) // write until complete or error
305 sysadm 1.28 {
306 sysadm 1.39 if (SSH_v2)
307     {
308 sysadm 1.55 ret = ssh_channel_write(SSH_channel, stdout_conv + stdout_conv_offset, (uint32_t)(stdout_conv_len - stdout_conv_offset));
309 sysadm 1.39 if (ret == SSH_ERROR)
310     {
311     log_error("ssh_channel_write() error: %s\n", ssh_get_error(SSH_session));
312     retry = 0;
313     break;
314     }
315     }
316     else
317     {
318 sysadm 1.55 ret = (int)write(STDOUT_FILENO, stdout_conv + stdout_conv_offset, (size_t)(stdout_conv_len - stdout_conv_offset));
319 sysadm 1.39 }
320 sysadm 1.29 if (ret < 0)
321     {
322     if (errno == EAGAIN || errno == EWOULDBLOCK)
323     {
324     break;
325     }
326     else if (errno == EINTR)
327     {
328     continue;
329     }
330     else
331     {
332 sysadm 1.46 #ifdef _DEBUG
333 sysadm 1.29 log_error("write(STDOUT) error (%d)\n", errno);
334 sysadm 1.46 #endif
335 sysadm 1.30 retry = 0;
336 sysadm 1.29 break;
337     }
338     }
339     else if (ret == 0) // broken pipe
340     {
341 sysadm 1.30 retry = 0;
342 sysadm 1.29 break;
343     }
344     else
345     {
346 sysadm 1.55 stdout_conv_offset += ret;
347     if (stdout_conv_offset >= stdout_conv_len) // flush buffer completely
348 sysadm 1.29 {
349     ret = 0;
350 sysadm 1.55 stdout_conv_offset = 0;
351     stdout_conv_len = 0;
352 sysadm 1.30 retry = 0;
353 sysadm 1.29 break;
354     }
355     continue;
356     }
357 sysadm 1.28 }
358     }
359     }
360     }
361 sysadm 1.6
362 sysadm 1.28 return ret;
363 sysadm 1.1 }
364    
365 sysadm 1.31 int igetch(int timeout)
366 sysadm 1.1 {
367 sysadm 1.61 static int stdin_read_wait = 0;
368    
369 sysadm 1.67 #ifdef HAVE_SYS_EPOLL_H
370 sysadm 1.66 struct epoll_event events[MAX_EVENTS];
371 sysadm 1.67 #else
372     struct pollfd pfds[1];
373     #endif
374    
375 sysadm 1.66 int nfds;
376 sysadm 1.31 int ret;
377     int loop;
378 sysadm 1.21
379 sysadm 1.22 unsigned char tmp[LINE_BUFFER_LEN];
380 sysadm 1.31 int out = KEY_NULL;
381 sysadm 1.18 int in_esc = 0;
382     int in_ascii = 0;
383     int in_control = 0;
384     int i = 0;
385 sysadm 1.1
386 sysadm 1.55 if (stdin_conv_offset >= stdin_conv_len)
387 sysadm 1.29 {
388 sysadm 1.55 stdin_conv_len = 0;
389     stdin_conv_offset = 0;
390 sysadm 1.31
391 sysadm 1.57 for (loop = 1; loop && stdin_buf_len < sizeof(stdin_buf) && stdin_conv_offset >= stdin_conv_len && !SYS_server_exit;)
392 sysadm 1.39 {
393 sysadm 1.48 if (SSH_v2 && ssh_channel_is_closed(SSH_channel))
394     {
395     log_error("SSH channel is closed\n");
396     loop = 0;
397     break;
398     }
399 sysadm 1.39
400 sysadm 1.61 if (!stdin_read_wait)
401     {
402 sysadm 1.67 #ifdef HAVE_SYS_EPOLL_H
403 sysadm 1.66 nfds = epoll_wait(stdin_epollfd, events, MAX_EVENTS, timeout);
404 sysadm 1.67 ret = nfds;
405     #else
406     pfds[0].fd = STDIN_FILENO;
407     pfds[0].events = POLLIN;
408     nfds = 1;
409     ret = poll(pfds, (nfds_t)nfds, timeout);
410     #endif
411 sysadm 1.9
412 sysadm 1.67 if (ret < 0)
413 sysadm 1.61 {
414     if (errno != EINTR)
415     {
416 sysadm 1.67 #ifdef HAVE_SYS_EPOLL_H
417 sysadm 1.61 log_error("epoll_wait() error (%d)\n", errno);
418 sysadm 1.67 #else
419     log_error("poll() error (%d)\n", errno);
420     #endif
421 sysadm 1.61 break;
422     }
423     continue;
424     }
425 sysadm 1.67 else if (ret == 0) // timeout
426 sysadm 1.48 {
427 sysadm 1.61 out = KEY_TIMEOUT;
428 sysadm 1.48 break;
429     }
430 sysadm 1.61
431     for (int i = 0; i < nfds; i++)
432     {
433 sysadm 1.67 #ifdef HAVE_SYS_EPOLL_H
434 sysadm 1.61 if (events[i].data.fd == STDIN_FILENO)
435 sysadm 1.67 #else
436     if (pfds[i].fd == STDIN_FILENO && (pfds[i].revents & POLLIN))
437     #endif
438 sysadm 1.61 {
439     stdin_read_wait = 1;
440     }
441     }
442 sysadm 1.21 }
443    
444 sysadm 1.61 if (stdin_read_wait)
445 sysadm 1.26 {
446 sysadm 1.61 while (stdin_buf_len < sizeof(stdin_buf) && !SYS_server_exit) // read until complete or error
447 sysadm 1.26 {
448 sysadm 1.61 if (SSH_v2)
449 sysadm 1.39 {
450 sysadm 1.61 ret = ssh_channel_read_nonblocking(SSH_channel, stdin_buf + stdin_buf_len, sizeof(stdin_buf) - (uint32_t)stdin_buf_len, 0);
451     if (ret == SSH_ERROR)
452 sysadm 1.39 {
453 sysadm 1.61 log_error("ssh_channel_read_nonblocking() error: %s\n", ssh_get_error(SSH_session));
454     loop = 0;
455     break;
456 sysadm 1.39 }
457 sysadm 1.61 else if (ret == SSH_EOF)
458 sysadm 1.39 {
459 sysadm 1.61 stdin_read_wait = 0;
460     loop = 0;
461     break;
462 sysadm 1.39 }
463 sysadm 1.61 else if (ret == 0)
464 sysadm 1.39 {
465 sysadm 1.61 out = 0;
466     stdin_read_wait = 0;
467     loop = 0;
468     break;
469 sysadm 1.39 }
470 sysadm 1.61 }
471     else
472     {
473     ret = (int)read(STDIN_FILENO, stdin_buf + stdin_buf_len, sizeof(stdin_buf) - (size_t)stdin_buf_len);
474     }
475     if (ret < 0)
476     {
477     if (errno == EAGAIN || errno == EWOULDBLOCK)
478 sysadm 1.29 {
479 sysadm 1.61 out = 0;
480     stdin_read_wait = 0;
481 sysadm 1.31 loop = 0;
482     break;
483 sysadm 1.29 }
484 sysadm 1.61 else if (errno == EINTR)
485     {
486     continue;
487     }
488 sysadm 1.48 else
489 sysadm 1.29 {
490 sysadm 1.61 #ifdef _DEBUG
491     log_error("read(STDIN) error (%d)\n", errno);
492     #endif
493     loop = 0;
494     break;
495 sysadm 1.29 }
496     }
497 sysadm 1.61 else if (ret == 0) // broken pipe
498     {
499     stdin_read_wait = 0;
500     loop = 0;
501     break;
502     }
503     else
504     {
505     stdin_buf_len += ret;
506     continue;
507     }
508 sysadm 1.26 }
509     }
510 sysadm 1.48
511     // For debug
512     #ifdef _DEBUG
513 sysadm 1.55 for (int j = stdin_buf_offset; j < stdin_buf_len; j++)
514 sysadm 1.48 {
515 sysadm 1.56 log_error("Debug input: <--[%u]\n", (stdin_buf[j] + 256) % 256);
516 sysadm 1.48 }
517     #endif
518 sysadm 1.14 }
519    
520 sysadm 1.55 if (stdin_buf_offset < stdin_buf_len)
521     {
522     ret = io_buf_conv(stdin_cd, stdin_buf, &stdin_buf_len, &stdin_buf_offset, stdin_conv, sizeof(stdin_conv), &stdin_conv_len);
523     if (ret < 0)
524     {
525     log_error("io_buf_conv(stdin, %d, %d, %d) error\n", stdin_buf_len, stdin_buf_offset, stdin_conv_len);
526 sysadm 1.60 stdin_buf_len = stdin_buf_offset; // Discard invalid sequence
527 sysadm 1.55 }
528 sysadm 1.56
529     // For debug
530     #ifdef _DEBUG
531     for (int j = stdin_conv_offset; j < stdin_conv_len; j++)
532     {
533     log_error("Debug input_conv: <--[%u]\n", (stdin_conv[j] + 256) % 256);
534     }
535     #endif
536 sysadm 1.55 }
537 sysadm 1.11 }
538 sysadm 1.14
539 sysadm 1.55 while (stdin_conv_offset < stdin_conv_len)
540 sysadm 1.11 {
541 sysadm 1.55 unsigned char c = (unsigned char)stdin_conv[stdin_conv_offset++];
542 sysadm 1.5
543 sysadm 1.51 // Convert \r\n to \r
544 sysadm 1.55 if (c == CR && stdin_conv_offset < stdin_conv_len && stdin_conv[stdin_conv_offset] == LF)
545 sysadm 1.51 {
546 sysadm 1.55 stdin_conv_offset++;
547 sysadm 1.51 }
548    
549     // Convert single \n to \r
550     if (c == LF)
551     {
552     c = CR;
553     }
554    
555 sysadm 1.14 if (c == KEY_CONTROL)
556     {
557     if (in_control == 0)
558     {
559     in_control = 1;
560     i = 0;
561     continue;
562     }
563     }
564 sysadm 1.1
565 sysadm 1.14 if (in_control)
566     {
567     tmp[i++] = c;
568     if (i >= 2)
569     {
570     out = (int)tmp[0] * 256 + tmp[1];
571     in_control = 0;
572     break;
573     }
574     continue;
575     }
576 sysadm 1.6
577 sysadm 1.37 if (c == KEY_ESC)
578 sysadm 1.14 {
579     if (in_esc == 0)
580     {
581     in_esc = 1;
582     in_ascii = 1;
583     i = 0;
584     continue;
585     }
586     else
587     {
588 sysadm 1.37 out = KEY_CSI;
589 sysadm 1.14 in_esc = 0;
590     break;
591     }
592     }
593 sysadm 1.3
594 sysadm 1.14 in_esc = 0;
595 sysadm 1.1
596 sysadm 1.14 if (in_ascii)
597     {
598     tmp[i++] = c;
599 sysadm 1.33 if (i == 2 && (tmp[0] == 79 || tmp[0] == 91))
600 sysadm 1.14 {
601     in_ascii = 0;
602 sysadm 1.33 switch (tmp[1])
603 sysadm 1.14 {
604 sysadm 1.33 case 65:
605 sysadm 1.14 out = KEY_UP;
606     break;
607 sysadm 1.33 case 66:
608 sysadm 1.14 out = KEY_DOWN;
609     break;
610 sysadm 1.33 case 67:
611 sysadm 1.14 out = KEY_RIGHT;
612     break;
613 sysadm 1.33 case 68:
614 sysadm 1.14 out = KEY_LEFT;
615     break;
616 sysadm 1.33 default:
617     in_ascii = 1;
618     }
619     if (!in_ascii)
620     {
621     break;
622     }
623     }
624     if (i == 2 && tmp[0] == 91) // Fterm
625     {
626     in_ascii = 0;
627     switch (tmp[1])
628     {
629     case 86:
630     out = KEY_SHIFT_F1;
631     break;
632     case 90:
633     out = KEY_SHIFT_F2;
634     break;
635     case 97:
636     out = KEY_SHIFT_F3;
637     break;
638     case 98:
639     out = KEY_SHIFT_F4;
640     break;
641     case 99:
642     out = KEY_SHIFT_F5;
643     break;
644     case 100:
645     out = KEY_SHIFT_F6;
646     break;
647     case 101:
648     out = KEY_SHIFT_F7;
649     break;
650     case 102:
651     out = KEY_SHIFT_F8;
652     break;
653     case 103:
654     out = KEY_SHIFT_F9;
655     break;
656     case 104:
657     out = KEY_SHIFT_F10;
658     break;
659     case 107:
660     out = KEY_CTRL_F1;
661     break;
662     case 108:
663     out = KEY_CTRL_F2;
664     break;
665     case 109:
666     out = KEY_CTRL_F3;
667     break;
668     case 112:
669     out = KEY_CTRL_F6;
670     break;
671     case 113:
672     out = KEY_CTRL_F7;
673     break;
674     case 114:
675     out = KEY_CTRL_F8;
676     break;
677     case 115:
678     out = KEY_CTRL_F9;
679     break;
680     case 116:
681     out = KEY_CTRL_F10;
682     break;
683     default:
684     in_ascii = 1;
685     }
686     if (!in_ascii)
687     {
688     break;
689     }
690     }
691     if (i == 2 && tmp[0] == 79) // Xterm
692     {
693     in_ascii = 0;
694     switch (tmp[1])
695     {
696     case 80:
697     out = KEY_F1;
698     break;
699     case 81:
700     out = KEY_F2;
701     break;
702     case 82:
703     out = KEY_F3;
704     break;
705     case 83:
706     out = KEY_F4;
707     break;
708     default:
709     in_ascii = 1;
710     }
711     if (!in_ascii)
712     {
713     break;
714 sysadm 1.14 }
715     }
716     if (i == 3 && tmp[0] == 91 && tmp[2] == 126)
717     {
718     in_ascii = 0;
719     switch (tmp[1])
720     {
721     case 49:
722     out = KEY_HOME;
723     break;
724 sysadm 1.42 case 50:
725     out = KEY_INS;
726     break;
727 sysadm 1.14 case 51:
728     out = KEY_DEL;
729     break;
730     case 52:
731     out = KEY_END;
732     break;
733     case 53:
734     out = KEY_PGUP;
735     break;
736     case 54:
737     out = KEY_PGDN;
738     break;
739 sysadm 1.33 default:
740     in_ascii = 1;
741     }
742     if (!in_ascii)
743     {
744     break;
745     }
746     }
747 sysadm 1.39 if (i == 4 && tmp[0] == 91 && tmp[1] == 49 && tmp[3] == 126) // Fterm
748 sysadm 1.33 {
749     in_ascii = 0;
750     switch (tmp[2])
751     {
752     case 49:
753     out = KEY_F1;
754     break;
755     case 50:
756     out = KEY_F2;
757     break;
758     case 51:
759     out = KEY_F3;
760     break;
761     case 52:
762     out = KEY_F4;
763     break;
764     case 53:
765     out = KEY_F5;
766     break;
767     case 55:
768     out = KEY_F6;
769     break;
770     case 56:
771     out = KEY_F7;
772     break;
773     case 57:
774     out = KEY_F8;
775     break;
776     default:
777     in_ascii = 1;
778     }
779     if (!in_ascii)
780     {
781     break;
782     }
783     }
784     if (i == 4 && tmp[0] == 91 && tmp[1] == 50 && tmp[3] == 126) // Fterm
785     {
786     in_ascii = 0;
787     switch (tmp[2])
788     {
789     case 48:
790     out = KEY_F9;
791     break;
792     case 49:
793     out = KEY_F10;
794     break;
795     case 50:
796     out = KEY_F11; // Fterm
797     break;
798     case 51:
799     out = KEY_F11; // Xterm
800     break;
801     case 52:
802     out = KEY_F12; // Xterm
803     break;
804     default:
805     in_ascii = 1;
806     }
807     if (!in_ascii)
808     {
809     break;
810     }
811     }
812     if (i == 5 && tmp[0] == 91 && tmp[1] == 49 && tmp[2] == 59 && tmp[3] == 53) // Xterm
813     {
814     in_ascii = 0;
815     switch (tmp[4])
816     {
817 sysadm 1.41 case 65:
818     out = KEY_CTRL_UP;
819     break;
820     case 66:
821     out = KEY_CTRL_DOWN;
822     break;
823     case 67:
824     out = KEY_CTRL_RIGHT;
825     break;
826     case 68:
827     out = KEY_CTRL_LEFT;
828     break;
829     case 70:
830     out = KEY_CTRL_END;
831     break;
832     case 72:
833     out = KEY_CTRL_HOME;
834     break;
835 sysadm 1.33 case 80:
836     out = KEY_CTRL_F1;
837     break;
838     case 81:
839     out = KEY_CTRL_F2;
840     break;
841     case 82:
842     out = KEY_CTRL_F3;
843     break;
844     default:
845     in_ascii = 1;
846     }
847     if (!in_ascii)
848     {
849     break;
850     }
851     }
852     if (i == 6 && tmp[0] == 91 && tmp[1] == 49 && tmp[3] == 59 && tmp[4] == 53 && tmp[5] == 126) // Xterm
853     {
854     in_ascii = 0;
855     switch (tmp[2])
856     {
857     case 53:
858     out = KEY_CTRL_F5;
859     break;
860     case 55:
861     out = KEY_CTRL_F6;
862     break;
863     case 56:
864     out = KEY_CTRL_F7;
865     break;
866     case 57:
867     out = KEY_CTRL_F8;
868     break;
869     default:
870     in_ascii = 1;
871     }
872     if (!in_ascii)
873     {
874     break;
875     }
876     }
877     if (i == 6 && tmp[0] == 91 && tmp[1] == 50 && tmp[3] == 59 && tmp[4] == 53 && tmp[5] == 126) // Xterm
878     {
879     in_ascii = 0;
880     switch (tmp[2])
881     {
882     case 48:
883     out = KEY_CTRL_F9;
884     break;
885     case 49:
886     out = KEY_CTRL_F10;
887     break;
888     case 51:
889     out = KEY_CTRL_F11;
890     break;
891     case 52:
892     out = KEY_CTRL_F12;
893     break;
894     default:
895     in_ascii = 1;
896     }
897     if (!in_ascii)
898     {
899     break;
900     }
901     }
902     if (i == 5 && tmp[0] == 91 && tmp[1] == 49 && tmp[2] == 59 && tmp[3] == 50) // Xterm
903     {
904     in_ascii = 0;
905     switch (tmp[4])
906     {
907     case 80:
908     out = KEY_SHIFT_F1;
909     break;
910     case 81:
911     out = KEY_SHIFT_F2;
912     break;
913     case 82:
914     out = KEY_SHIFT_F3;
915     break;
916     case 83:
917     out = KEY_SHIFT_F4;
918     break;
919     default:
920     in_ascii = 1;
921     }
922     if (!in_ascii)
923     {
924     break;
925 sysadm 1.14 }
926 sysadm 1.33 }
927     if (i == 6 && tmp[0] == 91 && tmp[1] == 49 && tmp[3] == 59 && tmp[4] == 50 && tmp[5] == 126) // Xterm
928     {
929     in_ascii = 0;
930     switch (tmp[2])
931     {
932     case 53:
933     out = KEY_SHIFT_F5;
934     break;
935     case 55:
936     out = KEY_SHIFT_F6;
937     break;
938     case 56:
939     out = KEY_SHIFT_F7;
940     break;
941     case 57:
942     out = KEY_SHIFT_F8;
943     break;
944     default:
945     in_ascii = 1;
946     }
947     if (!in_ascii)
948     {
949     break;
950     }
951     }
952     if (i == 6 && tmp[0] == 91 && tmp[1] == 50 && tmp[3] == 59 && tmp[4] == 50 && tmp[5] == 126) // Xterm
953     {
954     in_ascii = 0;
955     switch (tmp[2])
956     {
957     case 48:
958     out = KEY_SHIFT_F9;
959     break;
960     case 49:
961     out = KEY_SHIFT_F10;
962     break;
963     case 51:
964     out = KEY_SHIFT_F11;
965     break;
966     case 52:
967     out = KEY_SHIFT_F12;
968     break;
969     default:
970     in_ascii = 1;
971     }
972     if (!in_ascii)
973     {
974     break;
975     }
976     }
977    
978     if (c == 'm')
979     {
980     in_ascii = 0;
981 sysadm 1.14 }
982     continue;
983     }
984 sysadm 1.1
985 sysadm 1.14 out = ((int)c + 256) % 256;
986     break;
987 sysadm 1.1 }
988    
989 sysadm 1.36 // For ESC key
990     if (out == 0 && in_esc)
991     {
992     out = KEY_ESC;
993     }
994    
995 sysadm 1.33 // for debug
996 sysadm 1.45 #ifdef _DEBUG
997     if (out != KEY_TIMEOUT && out != KEY_NULL)
998     {
999 sysadm 1.56 log_error("Debug: -->[0x %x]\n", out);
1000 sysadm 1.45 }
1001     #endif
1002 sysadm 1.33
1003 sysadm 1.14 return out;
1004 sysadm 1.1 }
1005 sysadm 1.5
1006 sysadm 1.31 int igetch_t(int sec)
1007 sysadm 1.9 {
1008 sysadm 1.14 int ch;
1009 sysadm 1.44 time_t t_begin = time(NULL);
1010 sysadm 1.10
1011 sysadm 1.14 do
1012     {
1013 sysadm 1.31 ch = igetch(100);
1014 sysadm 1.44 } while (!SYS_server_exit && ch == KEY_TIMEOUT && (time(NULL) - t_begin < sec));
1015 sysadm 1.9
1016 sysadm 1.14 return ch;
1017 sysadm 1.9 }
1018 sysadm 1.31
1019     void igetch_reset()
1020     {
1021     int ch;
1022     do
1023     {
1024 sysadm 1.53 ch = igetch(100);
1025 sysadm 1.31 } while (ch != KEY_NULL && ch != KEY_TIMEOUT);
1026     }
1027 sysadm 1.54
1028     int io_buf_conv(iconv_t cd, char *p_buf, int *p_buf_len, int *p_buf_offset, char *p_conv, size_t conv_size, int *p_conv_len)
1029     {
1030     char *in_buf;
1031     char *out_buf;
1032     size_t in_bytes;
1033     size_t out_bytes;
1034     int ret;
1035 sysadm 1.56 int in_control = 0;
1036     size_t i = 0;
1037 sysadm 1.69 int skip_current = 0;
1038 sysadm 1.54
1039 sysadm 1.55 if (cd == NULL || p_buf == NULL || p_buf_len == NULL || p_buf_offset == NULL || p_conv == NULL || p_conv_len == NULL)
1040     {
1041     log_error("NULL pointer error\n");
1042     return -1;
1043     }
1044    
1045 sysadm 1.54 in_buf = p_buf + *p_buf_offset;
1046     in_bytes = (size_t)(*p_buf_len - *p_buf_offset);
1047     out_buf = p_conv + *p_conv_len;
1048     out_bytes = conv_size - (size_t)(*p_conv_len);
1049    
1050     while (in_bytes > 0)
1051     {
1052 sysadm 1.56 if ((unsigned char)(*in_buf) == KEY_CONTROL)
1053     {
1054     if (in_control == 0)
1055     {
1056     in_control = 1;
1057     i = 0;
1058     }
1059     }
1060    
1061 sysadm 1.69 if (in_control || skip_current)
1062 sysadm 1.56 {
1063 sysadm 1.69 skip_current = 0;
1064    
1065 sysadm 1.56 if (out_bytes <= 0)
1066     {
1067 sysadm 1.60 log_error("No enough free space in p_conv, conv_len=%d, conv_size=%d\n", *p_conv_len, conv_size);
1068 sysadm 1.56 return -2;
1069     }
1070    
1071     *out_buf = *in_buf;
1072     in_buf++;
1073     out_buf++;
1074     in_bytes--;
1075     out_bytes--;
1076    
1077     (*p_buf_offset)++;
1078 sysadm 1.69 (*p_conv_len)++;
1079 sysadm 1.56
1080     i++;
1081     if (i >= 2)
1082     {
1083     in_control = 0;
1084     }
1085     continue;
1086     }
1087    
1088 sysadm 1.54 ret = (int)iconv(cd, &in_buf, &in_bytes, &out_buf, &out_bytes);
1089     if (ret == -1)
1090     {
1091     if (errno == EINVAL) // Incomplete
1092     {
1093     #ifdef _DEBUG
1094 sysadm 1.56 log_error("iconv(inbytes=%d, outbytes=%d) error: EINVAL, in_buf[0]=%d\n", in_bytes, out_bytes, in_buf[0]);
1095 sysadm 1.54 #endif
1096 sysadm 1.56 if (p_buf != in_buf)
1097     {
1098 sysadm 1.69 *p_buf_len -= (int)(in_buf - p_buf);
1099 sysadm 1.56 *p_buf_offset = 0;
1100     *p_conv_len = (int)(conv_size - out_bytes);
1101     memmove(p_buf, in_buf, (size_t)(*p_buf_len));
1102     }
1103 sysadm 1.54
1104     break;
1105     }
1106     else if (errno == E2BIG)
1107     {
1108     log_error("iconv(inbytes=%d, outbytes=%d) error: E2BIG\n", in_bytes, out_bytes);
1109     return -1;
1110     }
1111     else if (errno == EILSEQ)
1112     {
1113     if (in_bytes > out_bytes || out_bytes <= 0)
1114     {
1115     log_error("iconv(inbytes=%d, outbytes=%d) error: EILSEQ and E2BIG\n", in_bytes, out_bytes);
1116     return -2;
1117     }
1118    
1119 sysadm 1.59 // reset in_bytes when "//IGNORE" is applied
1120     if (in_bytes == 0)
1121     {
1122     in_bytes = (size_t)(*p_buf_len - *p_buf_offset);
1123 sysadm 1.71 #ifdef _DEBUG
1124     log_error("Reset in_bytes from 0 to %d\n", in_bytes);
1125     #endif
1126 sysadm 1.59 }
1127    
1128 sysadm 1.71 #ifdef _DEBUG
1129     log_error("iconv(in_bytes=%d, out_bytes=%d) error: EILSEQ, in_buf[0]=%d\n",
1130     in_bytes, out_bytes, in_buf[0]);
1131     #endif
1132     skip_current = 1;
1133 sysadm 1.69 }
1134     else // something strange
1135     {
1136     #ifdef _DEBUG
1137 sysadm 1.70 log_error("iconv(in_bytes=%d, out_bytes=%d) error: %d, in_buf[0]=%d\n",
1138     in_bytes, out_bytes, errno, in_buf[0]);
1139 sysadm 1.69 #endif
1140 sysadm 1.70 *p_buf_offset = (int)(in_buf - p_buf);
1141 sysadm 1.69 *p_conv_len = (int)(conv_size - out_bytes);
1142     skip_current = 1;
1143 sysadm 1.54 }
1144     }
1145     else
1146     {
1147 sysadm 1.71 *p_buf_offset = (int)(in_buf - p_buf);
1148 sysadm 1.54 *p_conv_len = (int)(conv_size - out_bytes);
1149     }
1150     }
1151    
1152 sysadm 1.69 if (*p_buf_offset >= *p_buf_len)
1153     {
1154     *p_buf_len = 0;
1155     *p_buf_offset = 0;
1156     }
1157    
1158 sysadm 1.54 return 0;
1159     }
1160 sysadm 1.55
1161     int io_conv_init(const char *charset)
1162     {
1163 sysadm 1.64 char tocode[CHARSET_MAX_LEN + 20];
1164 sysadm 1.58
1165 sysadm 1.55 if (charset == NULL)
1166     {
1167     log_error("NULL pointer error\n");
1168     return -1;
1169     }
1170    
1171     io_conv_cleanup();
1172    
1173 sysadm 1.58 strncpy(stdio_charset, charset, sizeof(stdio_charset) - 1);
1174     stdio_charset[sizeof(stdio_charset) - 1] = '\0';
1175 sysadm 1.55
1176 sysadm 1.64 snprintf(tocode, sizeof(tocode), "%s%s", BBS_default_charset,
1177     (strcasecmp(stdio_charset, BBS_default_charset) == 0 ? "" : "//IGNORE"));
1178 sysadm 1.60 stdin_cd = iconv_open(tocode, stdio_charset);
1179 sysadm 1.55 if (stdin_cd == (iconv_t)(-1))
1180     {
1181 sysadm 1.60 log_error("iconv_open(%s->%s) error: %d\n", stdio_charset, tocode, errno);
1182 sysadm 1.55 return -2;
1183     }
1184 sysadm 1.58
1185 sysadm 1.60 snprintf(tocode, sizeof(tocode), "%s%s", stdio_charset,
1186 sysadm 1.64 (strcasecmp(BBS_default_charset, stdio_charset) == 0 ? "" : "//TRANSLIT"));
1187     stdout_cd = iconv_open(tocode, BBS_default_charset);
1188 sysadm 1.55 if (stdout_cd == (iconv_t)(-1))
1189     {
1190 sysadm 1.64 log_error("iconv_open(%s->%s) error: %d\n", BBS_default_charset, tocode, errno);
1191 sysadm 1.55 iconv_close(stdin_cd);
1192     return -2;
1193     }
1194    
1195     return 0;
1196     }
1197    
1198     int io_conv_cleanup(void)
1199     {
1200     if (stdin_cd != NULL)
1201     {
1202     iconv_close(stdin_cd);
1203     stdin_cd = NULL;
1204     }
1205     if (stdout_cd != NULL)
1206     {
1207     iconv_close(stdout_cd);
1208     stdout_cd = NULL;
1209     }
1210    
1211     return 0;
1212     }
webmaster@leafok.com
 ViewVC Help
Powered by ViewVC 1.3.0-beta1