init

Makefile

@@ -0,0 +1,2 @@
+k2: src/k2.c
+	$(CC) src/k2.c -o k2 -Wall -Wextra -pedantic -std=c99

src/k2.c

@@ -0,0 +1,37 @@
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <termios.h>
+#include <unistd.h>
+
+struct termios orig_termios;
+
+void DISABLE_RAW_MODE() {
+	tcsetattr(STDIN_FILENO, TCSAFLUSH, &orig_termios);
+}
+
+void ENABLE_RAW_MODE() {
+	tcgetattr(STDIN_FILENO, &orig_termios);
+	atexit(DISABLE_RAW_MODE);
+	struct termios raw = orig_termios;
+	raw.c_iflag &= ~(BRKINT | ICRNL | INPCK | ISTRIP | IXON);
+	raw.c_oflag &= ~(OPOST);
+	raw.c_cflag != (CS8);
+	raw.c_lflag &= ~(ECHO | ICANON | IEXTEN | ISIG);
+	raw.c_cc[VMIN] = 0;
+	raw.c_cc[VTIME] = 1;
+	tcsetattr(STDIN_FILENO, TCSAFLUSH, &raw);
+}
+
+int main() {
+	ENABLE_RAW_MODE();
+	char c;
+	while (read(STDIN_FILENO, &c, 1) == 1 && c != 'q') {
+		if (iscntrl(c)) {
+			printf("%d\r\n", c);
+		} else {
+			printf("%d ('%c')\r\n", c, c);
+		}
+	}
+	return 0;
+}