diff options
Diffstat (limited to 'sysdeps/mach/hurd/sendfile64.c')
-rw-r--r-- | sysdeps/mach/hurd/sendfile64.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/sendfile64.c b/sysdeps/mach/hurd/sendfile64.c new file mode 100644 index 0000000000..40ce271efb --- /dev/null +++ b/sysdeps/mach/hurd/sendfile64.c @@ -0,0 +1,43 @@ +/* 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; + } +} |