Kernel: Add syscall for reading directory entries

libc/include/sys/syscall.h

@@ -24,6 +24,7 @@ __BEGIN_DECLS
 #define SYS_WAIT 17
 #define SYS_STAT 18
 #define SYS_SETENVP 19
+#define SYS_READ_DIR_ENTRIES 20
 
 __END_DECLS
 

libc/unistd.cpp

@@ -163,6 +163,14 @@ long syscall(long syscall, ...)
 			ret = Kernel::syscall(SYS_SETENVP, (uintptr_t)envp);
 			break;
 		}
+		case SYS_READ_DIR_ENTRIES:
+		{
+			int fd = va_arg(args, int);
+			void* buffer = va_arg(args, void*);
+			size_t buffer_size = va_arg(args, size_t);
+			ret = Kernel::syscall(SYS_READ_DIR_ENTRIES, fd, (uintptr_t)buffer, buffer_size);
+			break;
+		}
 		default:
 			puts("LibC: Unhandeled syscall");
 			ret = -ENOSYS;