From 9dcf1391fe8cf7e09c2e9bb66f7f6c094e6268f5 Mon Sep 17 00:00:00 2001 From: Ian Moffett Date: Fri, 17 Oct 2025 19:57:22 -0400 Subject: kern: filedesc: Implement lseek() function The lseek() function allows the call to resposition the file offset using a specific whence value to govern offsetting semantics Signed-off-by: Ian Moffett --- src/sys/include/os/filedesc.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'src/sys/include/os/filedesc.h') diff --git a/src/sys/include/os/filedesc.h b/src/sys/include/os/filedesc.h index a6a2ac5..b773de9 100644 --- a/src/sys/include/os/filedesc.h +++ b/src/sys/include/os/filedesc.h @@ -30,6 +30,7 @@ #ifndef _OS_FILEDESC_H_ #define _OS_FILEDESC_H_ 1 +#include #include #include @@ -117,4 +118,13 @@ ssize_t write(int fd, const void *buf, size_t count); */ ssize_t read(int fd, void *buf, size_t count); +/* + * Reposition the file offset of a file + * + * @fd: File descriptor to reposition + * @offset: Offset to move `fd' to + * @whence: How it should be repositioned + */ +off_t lseek(int fd, off_t offset, int whence); + #endif /* !_OS_FILEDESC_H_ */ -- cgit v1.2.3