| 3 |
* screen |
* screen |
| 4 |
* - advanced telnet-based user interactive input / output features |
* - advanced telnet-based user interactive input / output features |
| 5 |
* |
* |
| 6 |
* Copyright (C) 2004-2025 Leaflet <leaflet@leafok.com> |
* Copyright (C) 2004-2026 Leaflet <leaflet@leafok.com> |
| 7 |
*/ |
*/ |
| 8 |
|
|
| 9 |
|
#ifdef HAVE_CONFIG_H |
| 10 |
|
#include "config.h" |
| 11 |
|
#endif |
| 12 |
|
|
| 13 |
#include "bbs.h" |
#include "bbs.h" |
| 14 |
#include "common.h" |
#include "common.h" |
| 15 |
#include "editor.h" |
#include "editor.h" |
| 25 |
#include <string.h> |
#include <string.h> |
| 26 |
#include <stdlib.h> |
#include <stdlib.h> |
| 27 |
#include <unistd.h> |
#include <unistd.h> |
| 28 |
|
#include <wchar.h> |
| 29 |
#include <sys/param.h> |
#include <sys/param.h> |
| 30 |
#include <sys/stat.h> |
#include <sys/stat.h> |
|
#include <sys/shm.h> |
|
| 31 |
#include <sys/types.h> |
#include <sys/types.h> |
| 32 |
|
|
| 33 |
const char CTRL_SEQ_CLR_LINE[] = "\033[K"; |
const char CTRL_SEQ_CLR_LINE[] = "\033[K"; |
| 88 |
void clearscr() |
void clearscr() |
| 89 |
{ |
{ |
| 90 |
prints("\033[2J"); |
prints("\033[2J"); |
| 91 |
moveto(0, 0); |
moveto(1, 1); |
| 92 |
} |
} |
| 93 |
|
|
| 94 |
inline int press_any_key() |
inline int press_any_key() |
| 98 |
|
|
| 99 |
int press_any_key_ex(const char *msg, int sec) |
int press_any_key_ex(const char *msg, int sec) |
| 100 |
{ |
{ |
|
int ch = 0; |
|
|
int duration = 0; |
|
|
time_t t_begin = time(NULL); |
|
|
|
|
| 101 |
moveto(SCREEN_ROWS, 0); |
moveto(SCREEN_ROWS, 0); |
| 102 |
clrtoeol(); |
clrtoeol(); |
| 103 |
|
|
| 104 |
prints(msg); |
prints(msg); |
| 105 |
iflush(); |
iflush(); |
| 106 |
|
|
| 107 |
|
return press_any_key_no_prompt(sec); |
| 108 |
|
} |
| 109 |
|
|
| 110 |
|
inline int press_any_key_no_prompt(int sec) |
| 111 |
|
{ |
| 112 |
|
int ch = 0; |
| 113 |
|
int duration = 0; |
| 114 |
|
time_t t_begin = time(NULL); |
| 115 |
|
|
| 116 |
igetch_reset(); |
igetch_reset(); |
| 117 |
|
|
| 118 |
do |
do |
| 144 |
int offset = 0; |
int offset = 0; |
| 145 |
int eol; |
int eol; |
| 146 |
int display_len; |
int display_len; |
| 147 |
char input_str[4]; |
char input_str[5]; |
| 148 |
int str_len = 0; |
int str_len = 0; |
| 149 |
|
wchar_t wcs[2]; |
| 150 |
char c; |
char c; |
| 151 |
|
|
| 152 |
buffer[buf_size - 1] = '\0'; |
buffer[buf_size - 1] = '\0'; |
| 170 |
{ |
{ |
| 171 |
continue; |
continue; |
| 172 |
} |
} |
| 173 |
else if (ch == BACKSPACE) |
else if (ch == BACKSPACE || ch == KEY_DEL) |
| 174 |
{ |
{ |
| 175 |
if (offset > 0) |
if (offset > 0) |
| 176 |
{ |
{ |
| 214 |
ch = igetch(100); // 0.1 second |
ch = igetch(100); // 0.1 second |
| 215 |
if (ch == KEY_NULL || ch == KEY_TIMEOUT) // Ignore received bytes if no futher input |
if (ch == KEY_NULL || ch == KEY_TIMEOUT) // Ignore received bytes if no futher input |
| 216 |
{ |
{ |
| 217 |
#ifdef _DEBUG |
log_debug("Ignore %d bytes of incomplete UTF8 character", str_len); |
|
log_error("Ignore %d bytes of incomplete UTF8 character\n", str_len); |
|
|
#endif |
|
| 218 |
str_len = 0; |
str_len = 0; |
| 219 |
break; |
break; |
| 220 |
} |
} |
| 221 |
} |
} |
| 222 |
|
input_str[str_len] = '\0'; |
| 223 |
|
|
| 224 |
if (str_len == 0) // Incomplete input |
if (str_len == 0) // Incomplete input |
| 225 |
{ |
{ |
| 226 |
continue; |
continue; |
| 227 |
} |
} |
| 228 |
|
|
| 229 |
if (offset + str_len > buf_size - 1 || display_len + 2 > max_display_len) // No enough space for Chinese character |
if (mbstowcs(wcs, input_str, 1) == (size_t)-1) |
| 230 |
|
{ |
| 231 |
|
log_error("mbstowcs() error"); |
| 232 |
|
} |
| 233 |
|
if (offset + str_len > buf_size - 1 || display_len + (UTF8_fixed_width ? 2 : wcwidth(wcs[0])) > max_display_len) // No enough space for Chinese character |
| 234 |
{ |
{ |
| 235 |
outc('\a'); |
outc('\a'); |
| 236 |
iflush(); |
iflush(); |
| 308 |
int offset = 0; |
int offset = 0; |
| 309 |
int eol; |
int eol; |
| 310 |
int display_len; |
int display_len; |
| 311 |
char input_str[4]; |
char input_str[5]; |
| 312 |
int str_len = 0; |
int str_len = 0; |
| 313 |
|
wchar_t wcs[2]; |
| 314 |
|
int wc_len; |
| 315 |
char c; |
char c; |
| 316 |
|
|
| 317 |
buffer[buf_size - 1] = '\0'; |
buffer[buf_size - 1] = '\0'; |
| 358 |
str_len++; |
str_len++; |
| 359 |
offset--; |
offset--; |
| 360 |
} |
} |
| 361 |
display_len--; |
|
| 362 |
col_cur--; |
if (mbstowcs(wcs, buffer + offset, 1) == (size_t)-1) |
| 363 |
|
{ |
| 364 |
|
log_error("mbstowcs() error"); |
| 365 |
|
} |
| 366 |
|
wc_len = (UTF8_fixed_width ? 2 : wcwidth(wcs[0])); |
| 367 |
|
|
| 368 |
|
if (wc_len == 2) |
| 369 |
|
{ |
| 370 |
|
display_len--; |
| 371 |
|
col_cur--; |
| 372 |
|
} |
| 373 |
} |
} |
| 374 |
|
|
| 375 |
memmove(buffer + offset, buffer + offset + str_len, (size_t)(len - offset - str_len)); |
memmove(buffer + offset, buffer + offset + str_len, (size_t)(len - offset - str_len)); |
| 432 |
str_len++; |
str_len++; |
| 433 |
offset--; |
offset--; |
| 434 |
} |
} |
| 435 |
col_cur--; |
|
| 436 |
|
if (mbstowcs(wcs, buffer + offset, 1) == (size_t)-1) |
| 437 |
|
{ |
| 438 |
|
log_error("mbstowcs() error"); |
| 439 |
|
} |
| 440 |
|
wc_len = (UTF8_fixed_width ? 2 : wcwidth(wcs[0])); |
| 441 |
|
|
| 442 |
|
if (wc_len == 2) |
| 443 |
|
{ |
| 444 |
|
col_cur--; |
| 445 |
|
} |
| 446 |
} |
} |
| 447 |
col_cur--; |
col_cur--; |
| 448 |
|
|
| 464 |
str_len++; |
str_len++; |
| 465 |
c = (c & 0x7f) << 1; |
c = (c & 0x7f) << 1; |
| 466 |
} |
} |
| 467 |
col_cur++; |
|
| 468 |
|
if (mbstowcs(wcs, buffer + offset, 1) == (size_t)-1) |
| 469 |
|
{ |
| 470 |
|
log_error("mbstowcs() error"); |
| 471 |
|
} |
| 472 |
|
wc_len = (UTF8_fixed_width ? 2 : wcwidth(wcs[0])); |
| 473 |
|
|
| 474 |
|
if (wc_len == 2) |
| 475 |
|
{ |
| 476 |
|
col_cur++; |
| 477 |
|
} |
| 478 |
} |
} |
| 479 |
else |
else |
| 480 |
{ |
{ |
| 536 |
ch = igetch(100); // 0.1 second |
ch = igetch(100); // 0.1 second |
| 537 |
if (ch == KEY_NULL || ch == KEY_TIMEOUT) // Ignore received bytes if no futher input |
if (ch == KEY_NULL || ch == KEY_TIMEOUT) // Ignore received bytes if no futher input |
| 538 |
{ |
{ |
| 539 |
#ifdef _DEBUG |
log_debug("Ignore %d bytes of incomplete UTF8 character", str_len); |
|
log_error("Ignore %d bytes of incomplete UTF8 character\n", str_len); |
|
|
#endif |
|
| 540 |
str_len = 0; |
str_len = 0; |
| 541 |
break; |
break; |
| 542 |
} |
} |
| 543 |
} |
} |
| 544 |
|
input_str[str_len] = '\0'; |
| 545 |
|
|
| 546 |
if (str_len == 0) // Incomplete input |
if (str_len == 0) // Incomplete input |
| 547 |
{ |
{ |
| 548 |
continue; |
continue; |
| 549 |
} |
} |
| 550 |
|
|
| 551 |
if (len + str_len > buf_size - 1 || display_len + 2 > max_display_len) // No enough space for Chinese character |
if (mbstowcs(wcs, input_str, 1) == (size_t)-1) |
| 552 |
|
{ |
| 553 |
|
log_error("mbstowcs() error"); |
| 554 |
|
} |
| 555 |
|
wc_len = (UTF8_fixed_width ? 2 : wcwidth(wcs[0])); |
| 556 |
|
|
| 557 |
|
if (len + str_len > buf_size - 1 || |
| 558 |
|
display_len + wc_len > max_display_len) // No enough space for Chinese character |
| 559 |
{ |
{ |
| 560 |
outc('\a'); |
outc('\a'); |
| 561 |
iflush(); |
iflush(); |
| 566 |
memcpy(buffer + offset, input_str, (size_t)str_len); |
memcpy(buffer + offset, input_str, (size_t)str_len); |
| 567 |
len += str_len; |
len += str_len; |
| 568 |
buffer[len] = '\0'; |
buffer[len] = '\0'; |
| 569 |
display_len += 2; |
display_len += wc_len; |
| 570 |
|
|
| 571 |
moveto(row, col_cur); |
moveto(row, col_cur); |
| 572 |
prints("%s", buffer + offset); |
prints("%s", buffer + offset); |
| 573 |
prints("%*s", max_display_len - display_len, ""); |
prints("%*s", max_display_len - display_len, ""); |
| 574 |
|
|
| 575 |
col_cur += 2; |
col_cur += wc_len; |
| 576 |
|
|
| 577 |
moveto(row, col_cur); |
moveto(row, col_cur); |
| 578 |
iflush(); |
iflush(); |
| 704 |
if (ch != KEY_NULL && ch != KEY_TIMEOUT) |
if (ch != KEY_NULL && ch != KEY_TIMEOUT) |
| 705 |
{ |
{ |
| 706 |
BBS_last_access_tm = time(NULL); |
BBS_last_access_tm = time(NULL); |
| 707 |
|
|
| 708 |
|
// Refresh current action |
| 709 |
|
if (user_online_update(NULL) < 0) |
| 710 |
|
{ |
| 711 |
|
log_error("user_online_update(NULL) error"); |
| 712 |
|
} |
| 713 |
} |
} |
| 714 |
|
|
| 715 |
// extended key handler |
// extended key handler |
| 721 |
switch (ch) |
switch (ch) |
| 722 |
{ |
{ |
| 723 |
case KEY_NULL: |
case KEY_NULL: |
| 724 |
log_error("KEY_NULL\n"); |
log_debug("KEY_NULL"); |
| 725 |
goto cleanup; |
goto cleanup; |
| 726 |
case KEY_TIMEOUT: |
case KEY_TIMEOUT: |
| 727 |
log_error("User input timeout\n"); |
log_debug("User input timeout"); |
| 728 |
goto cleanup; |
goto cleanup; |
| 729 |
case KEY_HOME: |
case KEY_HOME: |
| 730 |
if (line_current - output_current_row < 0) // Reach begin |
if (line_current - output_current_row < 0) // Reach begin |
| 834 |
len = p_line_offsets[line_current + 1] - p_line_offsets[line_current]; |
len = p_line_offsets[line_current + 1] - p_line_offsets[line_current]; |
| 835 |
if (len >= sizeof(buffer)) |
if (len >= sizeof(buffer)) |
| 836 |
{ |
{ |
| 837 |
log_error("Buffer overflow: len=%ld(%ld - %ld) line=%ld \n", |
log_error("Buffer overflow: len=%ld(%ld - %ld) line=%ld ", |
| 838 |
len, p_line_offsets[line_current + 1], p_line_offsets[line_current], line_current); |
len, p_line_offsets[line_current + 1], p_line_offsets[line_current], line_current); |
| 839 |
len = sizeof(buffer) - 1; |
len = sizeof(buffer) - 1; |
| 840 |
} |
} |
| 841 |
else if (len < 0) |
else if (len < 0) |
| 842 |
{ |
{ |
| 843 |
log_error("Incorrect line offsets: len=%ld(%ld - %ld) line=%ld \n", |
log_error("Incorrect line offsets: len=%ld(%ld - %ld) line=%ld ", |
| 844 |
len, p_line_offsets[line_current + 1], p_line_offsets[line_current], line_current); |
len, p_line_offsets[line_current + 1], p_line_offsets[line_current], line_current); |
| 845 |
len = 0; |
len = 0; |
| 846 |
} |
} |
| 877 |
int display_file(const char *filename, int eof_exit) |
int display_file(const char *filename, int eof_exit) |
| 878 |
{ |
{ |
| 879 |
int ret; |
int ret; |
| 880 |
const void *p_shm; |
void *p_shm; |
| 881 |
size_t data_len; |
size_t data_len; |
| 882 |
long line_total; |
long line_total; |
| 883 |
const void *p_data; |
const void *p_data; |
| 885 |
|
|
| 886 |
if ((p_shm = get_file_shm_readonly(filename, &data_len, &line_total, &p_data, &p_line_offsets)) == NULL) |
if ((p_shm = get_file_shm_readonly(filename, &data_len, &line_total, &p_data, &p_line_offsets)) == NULL) |
| 887 |
{ |
{ |
| 888 |
log_error("get_file_shm(%s) error\n", filename); |
log_error("get_file_shm(%s) error", filename); |
| 889 |
return KEY_NULL; |
return KEY_NULL; |
| 890 |
} |
} |
| 891 |
|
|
| 892 |
if (user_online_update("VIEW_FILE") < 0) |
if (user_online_update("VIEW_FILE") < 0) |
| 893 |
{ |
{ |
| 894 |
log_error("user_online_update(VIEW_FILE) error\n"); |
log_error("user_online_update(VIEW_FILE) error"); |
| 895 |
} |
} |
| 896 |
|
|
| 897 |
ret = display_data(p_data, line_total, p_line_offsets, eof_exit, display_file_key_handler, DATA_READ_HELP); |
ret = display_data(p_data, line_total, p_line_offsets, eof_exit, display_file_key_handler, DATA_READ_HELP); |
| 898 |
|
|
| 899 |
if (detach_file_shm(p_shm) < 0) |
if (detach_file_shm(p_shm) < 0) |
| 900 |
{ |
{ |
| 901 |
log_error("detach_file_shm(%s) error\n", filename); |
log_error("detach_file_shm(%s) error", filename); |
| 902 |
} |
} |
| 903 |
|
|
| 904 |
return ret; |
return ret; |
| 986 |
moveto(SCREEN_ROWS, 0); |
moveto(SCREEN_ROWS, 0); |
| 987 |
clrtoeol(); |
clrtoeol(); |
| 988 |
prints("\033[1;44;33m时间[\033[36m%s\033[33m]%s%*s \033[33m用户[\033[36m%s\033[33m][%s\033[33m]\033[m", |
prints("\033[1;44;33m时间[\033[36m%s\033[33m]%s%*s \033[33m用户[\033[36m%s\033[33m][%s\033[33m]\033[m", |
| 989 |
str_time, msg_f, 65 - len_str_time - len_msg - len_username - len_str_tm_online, "", BBS_username, str_tm_online); |
str_time, msg_f, 65 - len_str_time - len_msg - len_username - len_str_tm_online, |
| 990 |
|
"", BBS_username, str_tm_online); |
| 991 |
|
|
| 992 |
return 0; |
return 0; |
| 993 |
} |
} |
| 1011 |
{ |
{ |
| 1012 |
if ((p_shm = get_file_shm_readonly(DATA_ACTIVE_BOARD, &data_len, &line_total, &p_data, &p_line_offsets)) == NULL) |
if ((p_shm = get_file_shm_readonly(DATA_ACTIVE_BOARD, &data_len, &line_total, &p_data, &p_line_offsets)) == NULL) |
| 1013 |
{ |
{ |
| 1014 |
log_error("get_file_shm(%s) error\n", DATA_ACTIVE_BOARD); |
log_error("get_file_shm(%s) error", DATA_ACTIVE_BOARD); |
| 1015 |
return KEY_NULL; |
return KEY_NULL; |
| 1016 |
} |
} |
| 1017 |
} |
} |
| 1033 |
len = p_line_offsets[line_current + 1] - p_line_offsets[line_current]; |
len = p_line_offsets[line_current + 1] - p_line_offsets[line_current]; |
| 1034 |
if (len >= LINE_BUFFER_LEN) |
if (len >= LINE_BUFFER_LEN) |
| 1035 |
{ |
{ |
| 1036 |
log_error("buffer overflow: len=%ld(%ld - %ld) line=%ld \n", |
log_error("buffer overflow: len=%ld(%ld - %ld) line=%ld ", |
| 1037 |
len, p_line_offsets[line_current + 1], p_line_offsets[line_current], line_current); |
len, p_line_offsets[line_current + 1], p_line_offsets[line_current], line_current); |
| 1038 |
len = LINE_BUFFER_LEN - 1; |
len = LINE_BUFFER_LEN - 1; |
| 1039 |
} |
} |