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authorMike Frysinger <vapier@gentoo.org>2011-10-25 13:02:58 +0200
committerMike Frysinger <vapier@gentoo.org>2012-03-12 11:03:42 -0400
commite2dcefcb404df39fc38786f4b76e3b94d4f476e1 (patch)
tree70c06bebb31006aad7aa0a2d05ab93d314d95f9f /include
parent4f345d5673bc68122bcc5018a97fda2d8275437d (diff)
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sandbox: add lseek helper
Follow up patches want to be able to seek fd's. Acked-by: Simon Glass <sjg@chromium.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'include')
-rw-r--r--include/os.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/include/os.h b/include/os.h
index c17a8a5..f74766d 100644
--- a/include/os.h
+++ b/include/os.h
@@ -49,6 +49,21 @@ 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 (see below)
+ * \return new file offset
+ */
+off_t os_lseek(int fd, off_t offset, int whence);
+
+/* Defines for "whence" in os_lseek() */
+#define OS_SEEK_SET 0
+#define OS_SEEK_CUR 1
+#define OS_SEEK_END 2
+
+/**
* Access to the OS open() system call
*
* \param pathname Pathname of file to open