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-rw-r--r--lib/libc/include/unistd.h21
1 files changed, 20 insertions, 1 deletions
diff --git a/lib/libc/include/unistd.h b/lib/libc/include/unistd.h
index ebc9ff6..8c82eb8 100644
--- a/lib/libc/include/unistd.h
+++ b/lib/libc/include/unistd.h
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team.
+ * Copyright (c) 2023-2025 Ian Marco Moffett and the Osmora Team.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -30,9 +30,28 @@
#ifndef _UNISTD_H
#define _UNISTD_H
+#include <sys/exec.h>
#include <sys/types.h>
+#include <sys/cdefs.h>
+#include <stddef.h>
+#define F_OK 0
+
+/* lseek whence, follows Hyra ABI */
+#define SEEK_SET 0
+#define SEEK_CUR 1
+#define SEEK_END 2
+
+__BEGIN_DECLS
+
+int sysconf(int name);
ssize_t read(int fd, void *buf, size_t count);
+ssize_t write(int fd, const void *buf, size_t count);
+
int close(int fd);
+int access(const char *path, int mode);
+off_t lseek(int fildes, off_t offset, int whence);
+
+__END_DECLS
#endif /* !_UNISTD_H */