lib: c: io: implement standard FILE and DIR interfaces

2026-03-25 20:21:12 +00:00
parent b975256cb9
commit 96784f611f
21 changed files with 599 additions and 0 deletions
@@ -0,0 +1,25 @@
+#ifndef _LIBC_IO_FILE_H_
+#define _LIBC_IO_FILE_H_
+
+#include <stddef.h>
+
+enum file_flags {
+	FILE_EOF = 0x01u,
+	FILE_ERR = 0x02u,
+	FILE_BIN = 0x04u,
+};
+
+struct __opaque_file {
+	enum file_flags f_flags;
+	int f_fd;
+	char f_unget;
+	char *f_buf;
+	size_t f_buf_datalen, f_buf_max;
+	size_t f_buf_readptr;
+};
+
+extern int __libc_file_refill(struct __opaque_file *f);
+extern int __libc_file_read(struct __opaque_file *f, void *out, size_t count);
+extern size_t __libc_file_available(struct __opaque_file *f);
+
+#endif