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Diffstat (limited to 'sysdeps/mach/hurd/pread64.c')
-rw-r--r-- | sysdeps/mach/hurd/pread64.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/pread64.c b/sysdeps/mach/hurd/pread64.c new file mode 100644 index 0000000000..43841eeb49 --- /dev/null +++ b/sysdeps/mach/hurd/pread64.c @@ -0,0 +1,43 @@ +/* Read block from given position in file without changing file pointer. + Hurd version. + Copyright (C) 2001 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <errno.h> +#include <unistd.h> + +ssize_t +__libc_pread64 (int fd, void *buf, size_t nbyte, off64_t offset) +{ + /* XXX We don't really support large files on the Hurd. So if + OFFSET doesn't fit in an `off_t', we'll return `-1' and set + errno. EOVERFLOW probably isn't the right error value, but seems + appropriate here. */ + if ((off_t) offset != offset) + { + __set_errno (EOVERFLOW); + return -1; + } + + return __libc_pread (fd, buf, nbyte, offset); +} + +#ifndef __libc_pread64 +weak_alias (__libc_pread64, __pread64) +weak_alias (__libc_pread64, pread64) +#endif |