1 files changed, 31 insertions, 0 deletions
diff --git a/libc/include/unistd.h b/libc/include/unistd.h
new file mode 100644
index 0000000..8efd838
--- /dev/null
+++ b/libc/include/unistd.h
@@ -0,0 +1,31 @@
+#ifndef __UNISTD_H__
+#define __UNISTD_H__
+
+#include <reent.h>
+#include <stddef.h>
+#include <stdint.h>
+
+typedef int32_t ssize_t;
+typedef int32_t off_t;
+
+enum open_types_t {
+    O_RDONLY = 0,
+    O_WRONLY = 1,
+    O_RDWR = 2,
+    O_CREAT = 4,
+    O_TRUNC = 8,
+    O_APPEND = 16,
+};
+
+enum seek_wheels_t {
+    SEEK_SET = 0,
+    SEEK_CUR = 1,
+    SEEK_END = 2,
+};
+
+int open(const char *pathname, int flags);
+int close(int fd);
+ssize_t read(int fd, void *buf, size_t count);
+ssize_t write(int fd, const void *buf, size_t count);
+
+#endif