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glibc  2.9
pwrite.c
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00001 /* Write block at given position in file without changing file pointer.
00002    Hurd version.
00003    Copyright (C) 1999,2001,02 Free Software Foundation, Inc.
00004    This file is part of the GNU C Library.
00005 
00006    The GNU C Library is free software; you can redistribute it and/or
00007    modify it under the terms of the GNU Lesser General Public
00008    License as published by the Free Software Foundation; either
00009    version 2.1 of the License, or (at your option) any later version.
00010 
00011    The GNU C Library is distributed in the hope that it will be useful,
00012    but WITHOUT ANY WARRANTY; without even the implied warranty of
00013    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014    Lesser General Public License for more details.
00015 
00016    You should have received a copy of the GNU Lesser General Public
00017    License along with the GNU C Library; if not, write to the Free
00018    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00019    02111-1307 USA.  */
00020 
00021 #include <errno.h>
00022 #include <unistd.h>
00023 
00024 /* Write NBYTES of BUF to FD at given position OFFSET without changing
00025    the file position.  Return the number written, or -1.  */
00026 ssize_t
00027 __libc_pwrite (int fd, const void *buf, size_t nbytes, off_t offset)
00028 {
00029   return __libc_pwrite64 (fd, buf, nbytes, (off64_t) offset);
00030 }
00031 
00032 #ifndef __libc_pwrite
00033 strong_alias (__libc_pwrite, __pwrite)
00034 weak_alias (__libc_pwrite, pwrite)
00035 #endif