Add config parser and route

3 files changed, 437 insertions, 206 deletions

diff --git a/config.c b/config.c
new file mode 100644
index 0000000..2913a4e
--- /dev/null
+++ b/config.c
@@ -0,0 +1,117 @@
+#include <sys/types.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <limits.h>
+#include <pwd.h>
+#include <stdlib.h>
+
+#include "config.h"
+
+void fix_config_file_owner(const char *config_path) {
+    char *sudo_uid_str = getenv("SUDO_UID");
+    char *sudo_gid_str = getenv("SUDO_GID");
+
+    if (sudo_uid_str && sudo_gid_str) {
+        uid_t original_uid = atoi(sudo_uid_str);
+        gid_t original_gid = atoi(sudo_gid_str);
+        
+        chown(config_path, original_uid, original_gid);
+    }
+}
+
+struct config* prepare_config_file() {
+    struct config* cfg = malloc(sizeof(struct config));
+    if (!cfg) {
+	return NULL;
+    }
+
+    char* sudo_user = getenv("SUDO_USER");
+    cfg->home = malloc(PATH_MAX);
+    if (!cfg->home) {
+	return NULL;
+    }
+
+    snprintf(cfg->home, PATH_MAX, "/home/%s", sudo_user);
+
+    cfg->config_file_path = malloc(strlen(cfg->home) + strlen("/.klrc"));
+
+    snprintf(cfg->config_file_path, PATH_MAX, "%s/.klrc", cfg->home);
+
+    if (access(cfg->config_file_path, F_OK) == -1) {
+	FILE* fp = fopen(cfg->config_file_path, "a");
+	if (!fp) {
+	    return NULL;
+	}
+	fputs(CONFIG_FILE_COMMENT, fp);
+	fix_config_file_owner(cfg->config_file_path);
+	printf("%s\n", cfg->config_file_path);
+	fclose(fp);
+    }
+    return cfg;
+}
+
+struct config* parese_config(struct config* cfg) {
+    if (!cfg) {
+	return NULL;
+    }
+
+    FILE* fp = fopen(cfg->config_file_path, "r");
+    if (!fp) {
+	return NULL;
+    }
+
+
+    int line_count = 0;
+    char line[128];
+    char key[64] = {0};
+    char val[64] = {0};
+
+    while (fgets(line, sizeof(line), fp)) {
+	line_count++;
+	/* Skip comment and blank lines */
+	if (line[0] == '#' || line[0] == '\n' || line[0] == '\r') {
+	    continue;
+	}
+
+	int count = sscanf(line, "%s = %s", key, val);
+	if (count != 2) {
+	    printf("Error at %s:%d\n invalid token: %s", cfg->config_file_path, line_count, line);
+	    return NULL;
+	}
+
+	if (CFG_COMPLETE(key, "device")) {
+	    strncpy(cfg->device, val, sizeof(cfg->device) - 1);
+	    cfg->device[sizeof(cfg->device) - 1] = '\0';
+	} else if (CFG_COMPLETE(key, "enable_time")) {
+	    if (CFG_COMPLETE(val, "true")) {
+		cfg->enable_time = true;
+	    } else {
+		cfg->enable_time = false;
+	    }
+	} else if (CFG_COMPLETE(key, "enable_key_counter")) {
+	    if (CFG_COMPLETE(val, "true")) {
+		cfg->enable_keys_counter = true;
+	    } else {
+		cfg->enable_keys_counter = false;
+	    }
+	}  
+    }
+
+    fclose(fp);
+
+    return cfg;
+}
+
+struct config* config_init() {
+    struct config *cfg = prepare_config_file();
+    if (!cfg) {
+	return NULL;
+    }
+
+    if (parese_config(cfg) == NULL)  {
+	return NULL;
+    }
+
+
+    return cfg;
+}
diff --git a/config.h b/config.h
new file mode 100644
index 0000000..2911c70
--- /dev/null
+++ b/config.h
@@ -0,0 +1,36 @@
+#ifndef KC_CONFIG_H
+#define KC_CONFIG_H
+
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define PROGRAM_NAME "kl"
+#define PROGRAM_FULL_NAME "Keyboard Listener (kl)"
+#define PROGRAM_VERSION "0.1.1"
+#define PROGRAM_AUTHORS "Verdant <im@verdant.ee>"
+
+#define CONFIG_FILE_COMMENT "# kl config file (v"PROGRAM_VERSION")\n"	\
+    "#\n"								\
+    "# Please see your README for details.\n"				\
+    "#\n"								\
+    "# This file was auto-generated because it was missing.\n"		\
+
+#define CFG_COMPLETE(key, val) ((strcmp((key), (val)) == 0) && ((val)[0] != '\0'))
+
+struct config {
+    char* home;
+    char* config_file_path;
+    char device[256];
+    bool enable_time;
+    bool enable_keys_counter;
+};
+
+struct config* parese_config(struct config* cfg);
+
+struct config* prepare_config_file();
+
+struct config* config_init();
+
+
+#endif
diff --git a/main.c b/main.c
index 8faac24..7c7cd51 100644
--- a/main.c
+++ b/main.c
@@ -5,234 +5,312 @@
 #include <termios.h>
 #include <errno.h>
 #include <stdbool.h>
+#include <sys/time.h>
+#include <time.h>
 #include <string.h>
-
-#define PROGRAM_NAME "kl"
+#include "config.h"
 
 static struct termios original_term;
-const char *key_names[256] = {0};
+const char * key_names[256] = {
+    0
+};
+static int repeat_counters[256] = {
+    1
+};
+static int current_repeat_key = 0;
+static int line_lock = -1;
 
-void init_key_names() {
-	key_names[KEY_Q] = "Q";
-	key_names[KEY_W] = "W";
-	key_names[KEY_E] = "E";
-	key_names[KEY_R] = "R";
-	key_names[KEY_T] = "T";
-	key_names[KEY_Y] = "Y";
-	key_names[KEY_U] = "U";
-	key_names[KEY_I] = "I";
-	key_names[KEY_O] = "O";
-	key_names[KEY_P] = "P";
-	key_names[KEY_A] = "A";
-	key_names[KEY_S] = "S";
-	key_names[KEY_D] = "D";
-	key_names[KEY_F] = "F";
-	key_names[KEY_G] = "G";
-	key_names[KEY_H] = "H";
-	key_names[KEY_J] = "J";
-	key_names[KEY_K] = "K";
-	key_names[KEY_L] = "L";
-	key_names[KEY_Z] = "Z";
-	key_names[KEY_X] = "X";
-	key_names[KEY_C] = "C";
-	key_names[KEY_V] = "V";
-	key_names[KEY_B] = "B";
-	key_names[KEY_N] = "N";
-	key_names[KEY_M] = "M";
-
-	key_names[KEY_1] = "1";
-	key_names[KEY_2] = "2";
-	key_names[KEY_3] = "3";
-	key_names[KEY_4] = "4";
-	key_names[KEY_5] = "5";
-	key_names[KEY_6] = "6";
-	key_names[KEY_7] = "7";
-	key_names[KEY_8] = "8";
-	key_names[KEY_9] = "9";
-	key_names[KEY_0] = "0";
-
-	key_names[KEY_MINUS] = "-";
-	key_names[KEY_EQUAL] = "=";
-	key_names[KEY_LEFTBRACE] = "[";
-	key_names[KEY_RIGHTBRACE] = "]";
-	key_names[KEY_SEMICOLON] = ";";
-	key_names[KEY_APOSTROPHE] = "'";
-	key_names[KEY_GRAVE] = "`";
-	key_names[KEY_BACKSLASH] = "\\";
-	key_names[KEY_COMMA] = ",";
-	key_names[KEY_DOT] = ".";
-	key_names[KEY_SLASH] = "/";
-	key_names[KEY_SPACE] = "<SPACE>";
-
-	key_names[KEY_ESC] = "<ESC>";
-	key_names[KEY_BACKSPACE] = "<BACKSPACE>";
-	key_names[KEY_TAB] = "<TAB>";
-	key_names[KEY_ENTER] = "<ENTER>";
-	key_names[KEY_LEFTSHIFT] = "<L_SHIFT>";
-	key_names[KEY_RIGHTSHIFT] = "<R_SHIFT>";
-	key_names[KEY_LEFTCTRL] = "<L_CTRL>";
-	key_names[KEY_RIGHTCTRL] = "<R_CTRL>";
-	key_names[KEY_LEFTALT] = "<L_ALT>";
-	key_names[KEY_RIGHTALT] = "<R_ALT>";
-	key_names[KEY_LEFTMETA] = "<L_META>";
-	key_names[KEY_RIGHTMETA] = "<R_META>";
-	key_names[KEY_CAPSLOCK] = "<CAPSLOCK>";
-	key_names[KEY_NUMLOCK] = "<NUMLOCK>";
-	key_names[KEY_SCROLLLOCK] = "<SCROLLLOCK>";
-
-	key_names[KEY_F1] = "<F1>";
-	key_names[KEY_F2] = "<F2>";
-	key_names[KEY_F3] = "<F3>";
-	key_names[KEY_F4] = "<F4>";
-	key_names[KEY_F5] = "<F5>";
-	key_names[KEY_F6] = "<F6>";
-	key_names[KEY_F7] = "<F7>";
-	key_names[KEY_F8] = "<F8>";
-	key_names[KEY_F9] = "<F9>";
-	key_names[KEY_F10] = "<F10>";
-	key_names[KEY_F11] = "<F11>";
-	key_names[KEY_F12] = "<F12>";
-	key_names[KEY_F13] = "<F13>";
-	key_names[KEY_F14] = "<F14>";
-	key_names[KEY_F15] = "<F15>";
-	key_names[KEY_F16] = "<F16>";
-	key_names[KEY_F17] = "<F17>";
-	key_names[KEY_F18] = "<F18>";
-	key_names[KEY_F19] = "<F19>";
-	key_names[KEY_F20] = "<F20>";
-	key_names[KEY_F21] = "<F21>";
-	key_names[KEY_F22] = "<F22>";
-	key_names[KEY_F23] = "<F23>";
-	key_names[KEY_F24] = "<F24>";
-
-	key_names[KEY_KP0] = "<KP0>";
-	key_names[KEY_KP1] = "<KP1>";
-	key_names[KEY_KP2] = "<KP2>";
-	key_names[KEY_KP3] = "<KP3>";
-	key_names[KEY_KP4] = "<KP4>";
-	key_names[KEY_KP5] = "<KP5>";
-	key_names[KEY_KP6] = "<KP6>";
-	key_names[KEY_KP7] = "<KP7>";
-	key_names[KEY_KP8] = "<KP8>";
-	key_names[KEY_KP9] = "<KP9>";
-	key_names[KEY_KPDOT] = "<KP.>";
-	key_names[KEY_KPCOMMA] = "<KP,>";
-	key_names[KEY_KPENTER] = "<KPENTER>";
-	key_names[KEY_KPMINUS] = "<KP->";
-	key_names[KEY_KPPLUS] = "<KP+>";
-	key_names[KEY_KPSLASH] = "<KP/>";
-	key_names[KEY_KPASTERISK] = "<KP*>";
-	key_names[KEY_KPEQUAL] = "<KP=>";
-
-	key_names[KEY_UP] = "<UP>";
-	key_names[KEY_DOWN] = "<DOWN>";
-	key_names[KEY_LEFT] = "<LEFT>";
-	key_names[KEY_RIGHT] = "<RIGHT>";
-	key_names[KEY_HOME] = "<HOME>";
-	key_names[KEY_END] = "<END>";
-	key_names[KEY_PAGEUP] = "<PAGEUP>";
-	key_names[KEY_PAGEDOWN] = "<PAGEDOWN>";
-	key_names[KEY_INSERT] = "<INSERT>";
-	key_names[KEY_DELETE] = "<DELETE>";
-
-	key_names[KEY_MUTE] = "<MUTE>";
-	key_names[KEY_VOLUMEDOWN] = "<VOLUMEDOWN>";
-	key_names[KEY_VOLUMEUP] = "<VOLUMEUP>";
-	key_names[KEY_POWER] = "<POWER>";
-	key_names[KEY_SLEEP] = "<SLEEP>";
-	key_names[KEY_WAKEUP] = "<WAKEUP>";
-	key_names[KEY_PLAY] = "<PLAY>";
-	key_names[KEY_PAUSE] = "<PAUSE>";
-	key_names[KEY_PLAYPAUSE] = "<PLAYPAUSE>";
-	key_names[KEY_STOPCD] = "<STOP>";
-	key_names[KEY_PREVIOUSSONG] = "<PREVIOUS>";
-	key_names[KEY_NEXTSONG] = "<NEXT>";
-	key_names[KEY_REWIND] = "<REWIND>";
-	key_names[KEY_FASTFORWARD] = "<FASTFORWARD>";
-	key_names[KEY_RECORD] = "<RECORD>";
-	key_names[KEY_EJECTCD] = "<EJECT>";
-
-	key_names[KEY_SYSRQ] = "<SYSRQ>";
-	key_names[KEY_PAUSE] = "<PAUSE>";
-	key_names[KEY_MENU] = "<MENU>";
-	key_names[KEY_CALC] = "<CALC>";
-	key_names[KEY_MAIL] = "<MAIL>";
-	key_names[KEY_WWW] = "<WWW>";
-	key_names[KEY_SEARCH] = "<SEARCH>";
-	key_names[KEY_BACK] = "<BACK>";
-	key_names[KEY_FORWARD] = "<FORWARD>";
-	key_names[KEY_REFRESH] = "<REFRESH>";
-	key_names[KEY_STOP] = "<STOP>";
-	key_names[KEY_COPY] = "<COPY>";
-	key_names[KEY_CUT] = "<CUT>";
-	key_names[KEY_PASTE] = "<PASTE>";
-	key_names[KEY_UNDO] = "<UNDO>";
-	key_names[KEY_REDO] = "<REDO>";
-	key_names[KEY_FIND] = "<FIND>";
-	key_names[KEY_HELP] = "<HELP>";
-	key_names[KEY_FILE] = "<FILE>";
-	key_names[KEY_SAVE] = "<SAVE>";
-	key_names[KEY_NEW] = "<NEW>";
-	key_names[KEY_OPEN] = "<OPEN>";
-	key_names[KEY_CLOSE] = "<CLOSE>";
-	key_names[KEY_EXIT] = "<EXIT>";
-	key_names[KEY_PRINT] = "<PRINT>";
-	key_names[KEY_BRIGHTNESSDOWN] = "<BRIGHTNESSDOWN>";
-	key_names[KEY_BRIGHTNESSUP] = "<BRIGHTNESSUP>";
-	key_names[KEY_DISPLAY_OFF] = "<DISPLAYOFF>";
-	key_names[KEY_MICMUTE] = "<MICMUTE>";
-	key_names[KEY_WLAN] = "<WLAN>";
-	key_names[KEY_BLUETOOTH] = "<BLUETOOTH>";
-}
+enum KEY_STATUS {
+    KEY_RELEASE = 0,
+        KEY_PRESS = 1,
+        KEY_REPEAT = 2
+};
 
 void usage() {
-	printf("Usage: %s <EVENT_FILE_PATH>.\n", PROGRAM_NAME);
+    printf("Usage: %s <EVENT_FILE_PATH>.\n", PROGRAM_NAME);
+}
+
+void version() {
+    printf("%s (v%s)\n", PROGRAM_FULL_NAME, PROGRAM_VERSION);
+    printf("%s\n", PROGRAM_AUTHORS);
+
+}
+
+void init_key_names() {
+    key_names[KEY_RESERVED] = "KEY_RESERVED";
+    key_names[KEY_Q] = "Q";
+    key_names[KEY_W] = "W";
+    key_names[KEY_E] = "E";
+    key_names[KEY_R] = "R";
+    key_names[KEY_T] = "T";
+    key_names[KEY_Y] = "Y";
+    key_names[KEY_U] = "U";
+    key_names[KEY_I] = "I";
+    key_names[KEY_O] = "O";
+    key_names[KEY_P] = "P";
+    key_names[KEY_A] = "A";
+    key_names[KEY_S] = "S";
+    key_names[KEY_D] = "D";
+    key_names[KEY_F] = "F";
+    key_names[KEY_G] = "G";
+    key_names[KEY_H] = "H";
+    key_names[KEY_J] = "J";
+    key_names[KEY_K] = "K";
+    key_names[KEY_L] = "L";
+    key_names[KEY_Z] = "Z";
+    key_names[KEY_X] = "X";
+    key_names[KEY_C] = "C";
+    key_names[KEY_V] = "V";
+    key_names[KEY_B] = "B";
+    key_names[KEY_N] = "N";
+    key_names[KEY_M] = "M";
+
+    key_names[KEY_1] = "1";
+    key_names[KEY_2] = "2";
+    key_names[KEY_3] = "3";
+    key_names[KEY_4] = "4";
+    key_names[KEY_5] = "5";
+    key_names[KEY_6] = "6";
+    key_names[KEY_7] = "7";
+    key_names[KEY_8] = "8";
+    key_names[KEY_9] = "9";
+    key_names[KEY_0] = "0";
+
+    key_names[KEY_MINUS] = "-";
+    key_names[KEY_EQUAL] = "=";
+    key_names[KEY_LEFTBRACE] = "[";
+    key_names[KEY_RIGHTBRACE] = "]";
+    key_names[KEY_SEMICOLON] = ";";
+    key_names[KEY_APOSTROPHE] = "'";
+    key_names[KEY_GRAVE] = "`";
+    key_names[KEY_BACKSLASH] = "\\";
+    key_names[KEY_COMMA] = ",";
+    key_names[KEY_DOT] = ".";
+    key_names[KEY_SLASH] = "/";
+    key_names[KEY_SPACE] = "<SPACE>";
+
+    key_names[KEY_ESC] = "<ESC>";
+    key_names[KEY_BACKSPACE] = "<BACKSPACE>";
+    key_names[KEY_TAB] = "<TAB>";
+    key_names[KEY_ENTER] = "<ENTER>";
+    key_names[KEY_LEFTSHIFT] = "<L_SHIFT>";
+    key_names[KEY_RIGHTSHIFT] = "<R_SHIFT>";
+    key_names[KEY_LEFTCTRL] = "<L_CTRL>";
+    key_names[KEY_RIGHTCTRL] = "<R_CTRL>";
+    key_names[KEY_LEFTALT] = "<L_ALT>";
+    key_names[KEY_RIGHTALT] = "<R_ALT>";
+    key_names[KEY_LEFTMETA] = "<L_META>";
+    key_names[KEY_RIGHTMETA] = "<R_META>";
+    key_names[KEY_CAPSLOCK] = "<CAPSLOCK>";
+    key_names[KEY_NUMLOCK] = "<NUMLOCK>";
+    key_names[KEY_SCROLLLOCK] = "<SCROLLLOCK>";
+
+    key_names[KEY_F1] = "<F1>";
+    key_names[KEY_F2] = "<F2>";
+    key_names[KEY_F3] = "<F3>";
+    key_names[KEY_F4] = "<F4>";
+    key_names[KEY_F5] = "<F5>";
+    key_names[KEY_F6] = "<F6>";
+    key_names[KEY_F7] = "<F7>";
+    key_names[KEY_F8] = "<F8>";
+    key_names[KEY_F9] = "<F9>";
+    key_names[KEY_F10] = "<F10>";
+    key_names[KEY_F11] = "<F11>";
+    key_names[KEY_F12] = "<F12>";
+    key_names[KEY_F13] = "<F13>";
+    key_names[KEY_F14] = "<F14>";
+    key_names[KEY_F15] = "<F15>";
+    key_names[KEY_F16] = "<F16>";
+    key_names[KEY_F17] = "<F17>";
+    key_names[KEY_F18] = "<F18>";
+    key_names[KEY_F19] = "<F19>";
+    key_names[KEY_F20] = "<F20>";
+    key_names[KEY_F21] = "<F21>";
+    key_names[KEY_F22] = "<F22>";
+    key_names[KEY_F23] = "<F23>";
+    key_names[KEY_F24] = "<F24>";
+
+    key_names[KEY_KP0] = "<KP0>";
+    key_names[KEY_KP1] = "<KP1>";
+    key_names[KEY_KP2] = "<KP2>";
+    key_names[KEY_KP3] = "<KP3>";
+    key_names[KEY_KP4] = "<KP4>";
+    key_names[KEY_KP5] = "<KP5>";
+    key_names[KEY_KP6] = "<KP6>";
+    key_names[KEY_KP7] = "<KP7>";
+    key_names[KEY_KP8] = "<KP8>";
+    key_names[KEY_KP9] = "<KP9>";
+    key_names[KEY_KPDOT] = "<KP.>";
+    key_names[KEY_KPCOMMA] = "<KP,>";
+    key_names[KEY_KPENTER] = "<KPENTER>";
+    key_names[KEY_KPMINUS] = "<KP->";
+    key_names[KEY_KPPLUS] = "<KP+>";
+    key_names[KEY_KPSLASH] = "<KP/>";
+    key_names[KEY_KPASTERISK] = "<KP*>";
+    key_names[KEY_KPEQUAL] = "<KP=>";
+
+    key_names[KEY_UP] = "<UP>";
+    key_names[KEY_DOWN] = "<DOWN>";
+    key_names[KEY_LEFT] = "<LEFT>";
+    key_names[KEY_RIGHT] = "<RIGHT>";
+    key_names[KEY_HOME] = "<HOME>";
+    key_names[KEY_END] = "<END>";
+    key_names[KEY_PAGEUP] = "<PAGEUP>";
+    key_names[KEY_PAGEDOWN] = "<PAGEDOWN>";
+    key_names[KEY_INSERT] = "<INSERT>";
+    key_names[KEY_DELETE] = "<DELETE>";
+
+    key_names[KEY_MUTE] = "<MUTE>";
+    key_names[KEY_VOLUMEDOWN] = "<VOLUMEDOWN>";
+    key_names[KEY_VOLUMEUP] = "<VOLUMEUP>";
+    key_names[KEY_POWER] = "<POWER>";
+    key_names[KEY_SLEEP] = "<SLEEP>";
+    key_names[KEY_WAKEUP] = "<WAKEUP>";
+    key_names[KEY_PLAY] = "<PLAY>";
+    key_names[KEY_PAUSE] = "<PAUSE>";
+    key_names[KEY_PLAYPAUSE] = "<PLAYPAUSE>";
+    key_names[KEY_STOPCD] = "<STOP>";
+    key_names[KEY_PREVIOUSSONG] = "<PREVIOUS>";
+    key_names[KEY_NEXTSONG] = "<NEXT>";
+    key_names[KEY_REWIND] = "<REWIND>";
+    key_names[KEY_FASTFORWARD] = "<FASTFORWARD>";
+    key_names[KEY_RECORD] = "<RECORD>";
+    key_names[KEY_EJECTCD] = "<EJECT>";
+
+    key_names[KEY_SYSRQ] = "<SYSRQ>";
+    key_names[KEY_PAUSE] = "<PAUSE>";
+    key_names[KEY_MENU] = "<MENU>";
+    key_names[KEY_CALC] = "<CALC>";
+    key_names[KEY_MAIL] = "<MAIL>";
+    key_names[KEY_WWW] = "<WWW>";
+    key_names[KEY_SEARCH] = "<SEARCH>";
+    key_names[KEY_BACK] = "<BACK>";
+    key_names[KEY_FORWARD] = "<FORWARD>";
+    key_names[KEY_REFRESH] = "<REFRESH>";
+    key_names[KEY_STOP] = "<STOP>";
+    key_names[KEY_COPY] = "<COPY>";
+    key_names[KEY_CUT] = "<CUT>";
+    key_names[KEY_PASTE] = "<PASTE>";
+    key_names[KEY_UNDO] = "<UNDO>";
+    key_names[KEY_REDO] = "<REDO>";
+    key_names[KEY_FIND] = "<FIND>";
+    key_names[KEY_HELP] = "<HELP>";
+    key_names[KEY_FILE] = "<FILE>";
+    key_names[KEY_SAVE] = "<SAVE>";
+    key_names[KEY_NEW] = "<NEW>";
+    key_names[KEY_OPEN] = "<OPEN>";
+    key_names[KEY_CLOSE] = "<CLOSE>";
+    key_names[KEY_EXIT] = "<EXIT>";
+    key_names[KEY_PRINT] = "<PRINT>";
+    key_names[KEY_BRIGHTNESSDOWN] = "<BRIGHTNESSDOWN>";
+    key_names[KEY_BRIGHTNESSUP] = "<BRIGHTNESSUP>";
+    key_names[KEY_DISPLAY_OFF] = "<DISPLAYOFF>";
+    key_names[KEY_MICMUTE] = "<MICMUTE>";
+    key_names[KEY_WLAN] = "<WLAN>";
+    key_names[KEY_BLUETOOTH] = "<BLUETOOTH>";
 }
 
 void disable_term_echo() {
-	struct termios new_setting, init_setting;
-	tcgetattr(0, &init_setting);
-	new_setting = init_setting;
+    struct termios new_setting, init_setting;
+    tcgetattr(0, & original_term);
+    new_setting = original_term;
 
-	new_setting.c_lflag&=~ECHO;
-	tcsetattr(0, TCSANOW, &new_setting);
+    new_setting.c_lflag &= ~ECHO;
+    tcsetattr(0, TCSANOW, & new_setting);
 }
 
 void enable_term_echo() {
-	tcsetattr(0, TCSANOW, &original_term);
+    tcsetattr(0, TCSANOW, & original_term);
+}
+
+void print_pure(struct input_event * ie) {
+    if (repeat_counters[ie -> code] != 1) {
+        printf("%-15s x%-13d\r", key_names[ie -> code], repeat_counters[ie -> code]);
+    } else {
+        printf("\r%s", key_names[ie -> code]);
+    }
+
+    fflush(stdout);
 }
 
-int main(int argc,  char** argv) {
-	if (argc != 2 || strcmp(argv[1], "--help") == 0) {
-		usage();
-		return -1;
-	}
+void print_with_time(struct input_event * ie) {
+    struct tm * tm_info;
+    char time_buf[64];
+    time_t sec = (time_t) ie -> input_event_sec;
+    tm_info = localtime( & sec);
+    strftime(time_buf, sizeof(time_buf), "%F %T", tm_info);
+
+    if (repeat_counters[ie -> code] != 1) {
+        printf("%s.%06ld: %s x%d\n", time_buf, (long) ie -> time.tv_usec, key_names[ie -> code], repeat_counters[ie -> code]);
+    } else {
+        printf("%s.%06ld: %s\n", time_buf, (long) ie -> time.tv_usec, key_names[ie -> code]);
+
+    }
+
+    return;
+}
+
+int main(int argc, char ** argv) {
+    if (argv[1] != NULL && (strcmp(argv[1], "--help") == 0 || strcmp(argv[1], "-h") == 0)) {
+        usage();
+        return -1;
+    } else if (argv[1] != NULL && (strcmp(argv[1], "--version") == 0 || strcmp(argv[1], "-v")) == 0) {
+        version();
+        return -1;
+    }
+
+    setvbuf(stdout, NULL, _IONBF, 0);
+    disable_term_echo();
+
+    struct config * cfg = config_init();
+    if (!cfg) {
+        return -1;
+    }
+
+    printf("Device: %s\n", cfg -> device);
+
+    struct input_event ie;
+    int fd = open(cfg -> device, O_RDONLY);
+
+    if (fd == -1 && errno == EACCES) {
+        printf("Permission denied: please run %s with sudo.\n", PROGRAM_NAME);
+        return -1;
+    }
+
+    if (fd == -1 && errno == ENOENT) {
+        printf("No such file or directory: %s\n", cfg -> device);
+        return -1;
 
-	disable_term_echo();
+    }
 
-	struct input_event ie;
-	int fd = open(argv[1], O_RDONLY);
+    init_key_names();
 
-	if (fd == -1 && errno == EACCES) {
-		printf("Permission denied: please run %s with sudo.\n", PROGRAM_NAME);
-		return -1;
-	}
+    void( * fp)(struct input_event * ie) = (cfg -> enable_time == true) ? print_with_time : print_pure;
 
-	init_key_names();
+    while (1) {
+        read(fd, & ie, sizeof(ie));
+        if (ie.type == EV_KEY) {
 
-	while (1) {
-		read(fd, &ie, sizeof(ie));
+            if (ie.value == KEY_PRESS) {
+                if (line_lock != -1 && line_lock != ie.code && !cfg -> enable_time) printf("\n");
+                repeat_counters[ie.code] = 1;
+		line_lock = ie.code;
+                fp( & ie);
+            }
 
-		if (ie.type == EV_KEY && ie.value == 2)  {
-			continue;
-		}
+            if (ie.value == KEY_REPEAT) {
+                line_lock = ie.code;
+                repeat_counters[ie.code]++;
+                fp( & ie);
+            }
 
-		if (key_names[ie.code] != NULL && ie.value == 1) {
-			printf("%s\n", key_names[ie.code]);
-		}
+            if (ie.value == KEY_RELEASE) {
+                repeat_counters[ie.code] = 1;
+            }
+        }
 
-	}
+    }
 
-	enable_term_echo();
-	return 0;
+    enable_term_echo();
+    return 0;
 }