diff options
| -rw-r--r-- | console-tools/showkey.c | 37 |
1 files changed, 24 insertions, 13 deletions
diff --git a/console-tools/showkey.c b/console-tools/showkey.c index e7834f702..06df68bfd 100644 --- a/console-tools/showkey.c +++ b/console-tools/showkey.c @@ -56,37 +56,45 @@ int showkey_main(int argc UNUSED_PARAM, char **argv) // FIXME: aks are all mutually exclusive getopt32(argv, "aks"); - // get keyboard settings - xioctl(STDIN_FILENO, KDGKBMODE, &kbmode); - printf("kb mode was %s\n\nPress any keys. Program terminates %s\n\n", - kbmode == K_RAW ? "RAW" : - (kbmode == K_XLATE ? "XLATE" : - (kbmode == K_MEDIUMRAW ? "MEDIUMRAW" : - (kbmode == K_UNICODE ? "UNICODE" : "UNKNOWN"))) - , (option_mask32 & OPT_a) ? "on EOF (ctrl-D)" : "10s after last keypress" - ); - // prepare for raw mode xget1(&tio, &tio0); // put stdin in raw mode xset1(&tio); +#define press_keys "Press any keys, program terminates %s:\r\n\n" + if (option_mask32 & OPT_a) { + // just read stdin char by char unsigned char c; - // just read stdin char by char + printf(press_keys, "on EOF (ctrl-D)"); + + // read and show byte values while (1 == read(STDIN_FILENO, &c, 1)) { printf("%3u 0%03o 0x%02x\r\n", c, c, c); if (04 /*CTRL-D*/ == c) break; } + } else { + // we assume a PC keyboard + xioctl(STDIN_FILENO, KDGKBMODE, &kbmode); + printf("Keyboard mode was %s.\r\n\n", + kbmode == K_RAW ? "RAW" : + (kbmode == K_XLATE ? "XLATE" : + (kbmode == K_MEDIUMRAW ? "MEDIUMRAW" : + (kbmode == K_UNICODE ? "UNICODE" : "UNKNOWN"))) + ); + // set raw keyboard mode xioctl(STDIN_FILENO, KDSKBMODE, (void *)(ptrdiff_t)((option_mask32 & OPT_k) ? K_MEDIUMRAW : K_RAW)); // we should exit on any signal; signals should interrupt read bb_signals_recursive_norestart(BB_FATAL_SIGS, record_signo); + // inform user that program ends after time of inactivity + printf(press_keys, "10s after last keypress"); + // read and show scancodes while (!bb_got_signal) { char buf[18]; @@ -94,6 +102,7 @@ int showkey_main(int argc UNUSED_PARAM, char **argv) // setup 10s watchdog alarm(10); + // read scancodes n = read(STDIN_FILENO, buf, sizeof(buf)); i = 0; @@ -121,11 +130,13 @@ int showkey_main(int argc UNUSED_PARAM, char **argv) } puts("\r"); } + + // restore keyboard mode + xioctl(STDIN_FILENO, KDSKBMODE, (void *)(ptrdiff_t)kbmode); } - // restore keyboard and console settings + // restore console settings xset1(&tio0); - xioctl(STDIN_FILENO, KDSKBMODE, (void *)(ptrdiff_t)kbmode); return EXIT_SUCCESS; } |