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Diffstat (limited to 'sysdeps/mach/hurd/sendfile64.c')
-rw-r--r--sysdeps/mach/hurd/sendfile64.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/sendfile64.c b/sysdeps/mach/hurd/sendfile64.c
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+++ b/sysdeps/mach/hurd/sendfile64.c
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+/* sendfile -- copy data directly from one file descriptor to another
+ Copyright (C) 2002 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <sys/sendfile.h>
+#include <errno.h>
+#include <stddef.h>
+
+/* Send COUNT bytes from file associated with IN_FD starting at OFFSET to
+ descriptor OUT_FD. */
+ssize_t
+sendfile64 (int out_fd, int in_fd, off64_t *offset, size_t count)
+{
+ if (offset == NULL)
+ return sendfile (out_fd, in_fd, NULL, count);
+ else
+ {
+ off_t ofs = *offset;
+ if (ofs != *offset)
+ {
+ __set_errno (EOVERFLOW);
+ return -1;
+ }
+ ssize_t ret = sendfile (out_fd, in_fd, &ofs, count);
+ *offset = ofs;
+ return ret;
+ }
+}