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authorRoland McGrath <roland@gnu.org>2002-09-06 19:20:20 +0000
committerRoland McGrath <roland@gnu.org>2002-09-06 19:20:20 +0000
commit131c6eb7daca02f20884c59e254d0963d07a9d5a (patch)
tree858faca702c8dcc76588de7dbe5dd5fede137b78 /io
parent2e56ce9ba79344f636e6e205f51270e46950b5ce (diff)
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2002-09-04 Bruno Haible <bruno@clisp.org>
* sysdeps/generic/bits/ustat.h: Comment fix. * io/sys/sendfile.h: Comment fix. * sysdeps/posix/pread.c: Comment fix. * sysdeps/posix/pread64.c: Comment fix. * sysdeps/posix/pwrite.c: Comment fix. * sysdeps/posix/pwrite64.c: Comment fix.
Diffstat (limited to 'io')
-rw-r--r--io/sys/sendfile.h7
1 files changed, 5 insertions, 2 deletions
diff --git a/io/sys/sendfile.h b/io/sys/sendfile.h
index 0627c40464..797822b9fe 100644
--- a/io/sys/sendfile.h
+++ b/io/sys/sendfile.h
@@ -25,8 +25,11 @@
__BEGIN_DECLS
-/* Send COUNT bytes from file associated with IN_FD starting at OFFSET to
- descriptor OUT_FD. */
+/* Send up to COUNT bytes from file associated with IN_FD starting at
+ *OFFSET to descriptor OUT_FD. Set *OFFSET to the IN_FD's file position
+ following the read bytes. If OFFSET is a null pointer, use the normal
+ file position instead. Return the number of written bytes, or -1 in
+ case of error. */
#ifndef __USE_FILE_OFFSET64
extern ssize_t sendfile (int __out_fd, int __in_fd, off_t *__offset,
size_t __count) __THROW;