diff options
Diffstat (limited to 'sysdeps/posix/pwrite64.c')
-rw-r--r-- | sysdeps/posix/pwrite64.c | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/sysdeps/posix/pwrite64.c b/sysdeps/posix/pwrite64.c deleted file mode 100644 index 601a268f59..0000000000 --- a/sysdeps/posix/pwrite64.c +++ /dev/null @@ -1,62 +0,0 @@ -/* Write block to given position in file without changing file pointer. - POSIX version. - Copyright (C) 1997-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. - - 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, see - <http://www.gnu.org/licenses/>. */ - -#include <errno.h> -#include <unistd.h> - -/* Note: This implementation of pwrite64 is not multithread-safe. */ - -ssize_t -__libc_pwrite64 (int fd, const void *buf, size_t nbyte, off64_t offset) -{ - /* Since we must not change the file pointer preserve the value so that - we can restore it later. */ - int save_errno; - ssize_t result; - off64_t old_offset = __libc_lseek64 (fd, 0, SEEK_CUR); - if (old_offset == (off64_t) -1) - return -1; - - /* Set to wanted position. */ - if (__libc_lseek64 (fd, offset, SEEK_SET) == (off64_t) -1) - return -1; - - /* Write out the data. */ - result = __libc_write (fd, buf, nbyte); - - /* Now we have to restore the position. If this fails we have to - return this as an error. But if the writing also failed we - return this error. */ - save_errno = errno; - if (__libc_lseek64 (fd, old_offset, SEEK_SET) == (off64_t) -1) - { - if (result == -1) - __set_errno (save_errno); - return -1; - } - __set_errno (save_errno); - - return result; -} -#ifndef __libc_pwrite64 -weak_alias (__libc_pwrite64, __pwrite64) -libc_hidden_weak (__pwrite64) -weak_alias (__libc_pwrite64, pwrite64) -#endif |