libc: io: implement file io buffering and internal locking for concurrency

2026-04-01 18:51:13 +01:00
parent f2e650d368
commit 548387c43a
23 changed files with 948 additions and 73 deletions
@@ -0,0 +1,8 @@
+#include "file.h"
+
+#include <unistd.h>
+
+long ftell(struct __opaque_file *stream)
+{
+	return lseek(stream->f_fd, 0, SEEK_CUR);
+}