[U-Boot] [PATCH 1/6] sandbox: add lseek helper

[Mike Frysinger]

Follow up patches want to be able to seek fd's.

Signed-off-by: Mike Frysinger <vapier at gentoo.org>
---
 arch/sandbox/cpu/os.c |    5 +++++
 include/os.h          |   10 ++++++++++
 2 files changed, 15 insertions(+), 0 deletions(-)

diff --git a/arch/sandbox/cpu/os.c b/arch/sandbox/cpu/os.c
index 093e7dc..6e257ff 100644
--- a/arch/sandbox/cpu/os.c
+++ b/arch/sandbox/cpu/os.c
@@ -45,6 +45,11 @@ ssize_t os_write(int fd, const void *buf, size_t count)
 	return write(fd, buf, count);
 }
 
+off_t os_lseek(int fd, off_t offset, int whence)
+{
+	return lseek(fd, offset, whence);
+}
+
 int os_open(const char *pathname, int flags)
 {
 	return open(pathname, flags);
diff --git a/include/os.h b/include/os.h
index c17a8a5..d182f40 100644
--- a/include/os.h
+++ b/include/os.h
@@ -49,6 +49,16 @@ ssize_t os_read(int fd, void *buf, size_t count);
 ssize_t os_write(int fd, const void *buf, size_t count);
 
 /**
+ * Access to the OS lseek() system call
+ *
+ * \param fd	File descriptor as returned by os_open()
+ * \param offset	File offset (based on whence)
+ * \param whence	Position offset is relative to
+ * \return new file offset
+ */
+off_t os_lseek(int fd, off_t offset, int whence);
+
+/**
  * Access to the OS open() system call
  *
  * \param pathname	Pathname of file to open
-- 
1.7.8.3