tikker/tikker.c at 77745db80649b451fe923cc789bff45cbaa9af18

 #include "sormc.h"
 #include <fcntl.h>
 #include <linux/input.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <sys/ioctl.h>
 #include <unistd.h>
 #define MAX_DEVICES 32
 #define DEVICE_PATH "/dev/input/event"
 /*
 const char *keycode_to_char[] = {
     "", "ESC", "1", "2", "3", "4", "5", "6", "7", "8", "9", "0",
     "-", "=", "BACKSPACE", "TAB", "q", "w", "e", "r", "t", "y",
     "u", "i", "o", "p", "[", "]", "ENTER", "CTRL", "a", "s",
     "d", "f", "g", "h", "j", "k", "l", ";", "'", "`", "SHIFT",
     "\\", "z", "x", "c", "v", "b", "n", "m", ",", ".", "/",
     "SHIFT", "*", "ALT", " ", "CAPSLOCK"
 };*/
 const char *keycode_to_char[] = {
     [2] = "1", [3] = "2", [4] = "3", [5] = "4", [6] = "5",
     [7] = "6", [8] = "7", [9] = "8", [10] = "9", [11] = "0",
     [12] = "-", [13] = "=", [14] = "BACKSPACE", [15] = "TAB",
     [16] = "Q", [17] = "W", [18] = "E", [19] = "R", [20] = "T",
     [21] = "Y", [22] = "U", [23] = "I", [24] = "O", [25] = "P",
     [26] = "[", [27] = "]", [28] = "ENTER", [29] = "LEFT_CTRL",
     [30] = "A", [31] = "S", [32] = "D", [33] = "F", [34] = "G",
     [35] = "H", [36] = "J", [37] = "K", [38] = "L", [39] = ";",
     [40] = "'", [41] = "`", [42] = "LEFT_SHIFT", [43] = "\\",
     [44] = "Z", [45] = "X", [46] = "C", [47] = "V", [48] = "B",
     [49] = "N", [50] = "M", [51] = ",", [52] = ".", [53] = "/",
     [54] = "RIGHT_SHIFT", [55] = "KEYPAD_*", [56] = "LEFT_ALT",
     [57] = "SPACE", [58] = "CAPSLOCK",
     [59] = "F1", [60] = "F2", [61] = "F3", [62] = "F4",
     [63] = "F5", [64] = "F6", [65] = "F7", [66] = "F8",
     [67] = "F9", [68] = "F10", [87] = "F11", [88] = "F12",
     [69] = "NUMLOCK", [70] = "SCROLLLOCK", [71] = "KEYPAD_7",
     [72] = "KEYPAD_8", [73] = "KEYPAD_9", [74] = "KEYPAD_-",
     [75] = "KEYPAD_4", [76] = "KEYPAD_5", [77] = "KEYPAD_6",
     [78] = "KEYPAD_+", [79] = "KEYPAD_1", [80] = "KEYPAD_2",
     [81] = "KEYPAD_3", [82] = "KEYPAD_0", [83] = "KEYPAD_.",
     [86] = "<", [100] = "RIGHT_ALT", [97] = "RIGHT_CTRL",
     [119] = "PAUSE", [120] = "SYSRQ", [121] = "BREAK",
     [102] = "HOME", [103] = "UP", [104] = "PAGEUP",
     [105] = "LEFT", [106] = "RIGHT", [107] = "END",
     [108] = "DOWN", [109] = "PAGEDOWN", [110] = "INSERT",
     [111] = "DELETE",
     [113] = "MUTE", [114] = "VOLUME_DOWN", [115] = "VOLUME_UP",
     [163] = "MEDIA_NEXT", [165] = "MEDIA_PREV", [164] = "MEDIA_PLAY_PAUSE"
 };
 int is_keyboard(int fd) {
     char device_name[256] = {0};
     if (ioctl(fd, EVIOCGNAME(sizeof(device_name)), device_name) < 0) {
         return 0;
     }
     return strstr(device_name, "keyboard") != NULL;
 }
 int main() {
     int db = sormc("tikker.db");
     ulonglong times_repeated = 0;
     ulonglong times_pressed = 0;
     ulonglong times_released = 0;
     sormq(db, "CREATE TABLE IF NOT EXISTS kevent (id INTEGER PRIMARY KEY AUTOINCREMENT, code,event,name,timestamp,char)");
     int keyboard_fds[MAX_DEVICES];
     int num_keyboards = 0;
     for (int i = 0; i < MAX_DEVICES; i++) {
         char device_path[32];
         snprintf(device_path, sizeof(device_path), "%s%d", DEVICE_PATH, i);
         int fd = open(device_path, O_RDONLY);
         if (fd < 0) {
             continue;
         }
         if (is_keyboard(fd)) {
             keyboard_fds[num_keyboards++] = fd;
             printf("Found keyboard: %s\n", device_path);
         } else {
             close(fd);
         }
     }
     if (num_keyboards == 0) {
         fprintf(stderr, "No keyboard found.\n");
         return 1;
     }
     printf("Monitoring %d keyboards.\n", num_keyboards);
     struct input_event ev;
     fd_set read_fds;
     while (1) {
         FD_ZERO(&read_fds);
         int max_fd = -1;
         for (int i = 0; i < num_keyboards; i++) {
             FD_SET(keyboard_fds[i], &read_fds);
             if (keyboard_fds[i] > max_fd) {
                 max_fd = keyboard_fds[i];
             }
         }
         if (select(max_fd + 1, &read_fds, NULL, NULL, NULL) < 0) {
             perror("select error");
             break;
         }
         for (int i = 0; i < num_keyboards; i++) {
             if (FD_ISSET(keyboard_fds[i], &read_fds)) {
                 ssize_t bytes = read(keyboard_fds[i], &ev, sizeof(struct input_event));
                 if (bytes == sizeof(struct input_event)) {
                     if (ev.type == EV_KEY) {
                         char * char_name = NULL;
                         if (ev.code < sizeof(keycode_to_char) / sizeof(keycode_to_char[0])) {
                            char_name = (char *)keycode_to_char[ev.code], ev.code);
                         }
                         char keyboard_name[256];
                         ioctl(keyboard_fds[i], EVIOCGNAME(sizeof(keyboard_name)), keyboard_name);
                         printf("Keyboard: %s, ", keyboard_name);
                         char *event_name = NULL;
                         if (ev.value == 1) {
                             event_name = "PRESSED";
                             times_pressed++;
                         } else if (ev.value == 0) {
                             event_name = "RELEASED";
                             times_released++;
                         } else {
                             event_name = "REPEATED";
                             times_repeated++;
                         }
                         sormq(db, "INSERT INTO kevent (code, event, name,timestamp,char) VALUES (%d, %s, %s, DATETIME('now'),%s)", ev.code,
                               event_name, keyboard_name,char_name);
                         printf("Event: %s, ", ev.value == 1 ? "PRESSED" : ev.value == 0 ? "RELEASED" : "REPEATED");
                         printf("Key Code: %d, ", ev.code);
                         printf("Name: %s, ", char_name);
                         printf("Pr: %lld Rel: %lld Rep: %lld\n", times_pressed, times_released, times_repeated);
                     }
                 }
             }
         }
     }
     for (int i = 0; i < num_keyboards; i++) {
         close(keyboard_fds[i]);
     }
     return 0;
 }