libc: unistd: Add lseek system call interface

Signed-off-by: Ian Moffett <ian@osmora.org>

1 files changed, 10 insertions, 0 deletions

diff --git a/src/lib/libc/include/unistd.h b/src/lib/libc/include/unistd.h
index b668d5b..61b437c 100644
--- a/src/lib/libc/include/unistd.h
+++ b/src/lib/libc/include/unistd.h
@@ -30,6 +30,7 @@
 #ifndef _UNISTD_H
 #define _UNISTD_H 1
 
+#include <sys/seek.h>
 #include <stddef.h>
 
 /* Standard stream file numbers */
@@ -74,4 +75,13 @@ 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  /* _UNISTD_H */