CLI apps transfer to Userspace

src/kernel/userland/man.c

@@ -0,0 +1,33 @@
+#include <stdlib.h>
+#include <syscall.h>
+
+int main(int argc, char **argv) {
+    if (argc < 2) {
+        printf("What manual page do you want?\nExample: man ls\n");
+        return 0;
+    }
+    
+    char path[128];
+    printf("Manual for: %s\n", argv[1]);
+    printf("---------------------------\n");
+    
+    strcpy(path, "A:/Library/man/");
+    strcat(path, argv[1]);
+    strcat(path, ".txt");
+    
+    int fd = sys_open(path, "r");
+    if (fd < 0) {
+        printf("No manual entry for %s\n", argv[1]);
+        return 1;
+    }
+    
+    char buffer[4096];
+    int bytes;
+    while ((bytes = sys_read(fd, buffer, sizeof(buffer))) > 0) {
+        sys_write(1, buffer, bytes);
+    }
+    
+    sys_close(fd);
+    printf("\n");
+    return 0;
+}