diff options
Diffstat (limited to 'sysdeps/mach/hurd/readlinkat.c')
-rw-r--r-- | sysdeps/mach/hurd/readlinkat.c | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/sysdeps/mach/hurd/readlinkat.c b/sysdeps/mach/hurd/readlinkat.c deleted file mode 100644 index fa1640fd72..0000000000 --- a/sysdeps/mach/hurd/readlinkat.c +++ /dev/null @@ -1,59 +0,0 @@ -/* Copyright (C) 1991-2017 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; see the file COPYING.LIB. If - not, see <http://www.gnu.org/licenses/>. */ - -#include <unistd.h> -#include <hurd.h> -#include <hurd/paths.h> -#include <hurd/fd.h> -#include <fcntl.h> -#include <string.h> - -/* Read the contents of the symbolic link FILE_NAME relative to FD into no more - than LEN bytes of BUF. The contents are not null-terminated. - Returns the number of characters read, or -1 for errors. */ -ssize_t -readlinkat (int fd, const char *file_name, char *buf, size_t len) -{ - error_t err; - file_t file; - struct stat64 st; - - file = __file_name_lookup_at (fd, 0, file_name, O_READ | O_NOLINK, 0); - if (file == MACH_PORT_NULL) - return -1; - - err = __io_stat (file, &st); - if (! err) - if (S_ISLNK (st.st_mode)) - { - char *rbuf = buf; - - err = __io_read (file, &rbuf, &len, 0, len); - if (!err && rbuf != buf) - { - memcpy (buf, rbuf, len); - __vm_deallocate (__mach_task_self (), (vm_address_t)rbuf, len); - } - } - else - err = EINVAL; - - __mach_port_deallocate (__mach_task_self (), file); - - return err ? __hurd_fail (err) : len; -} -libc_hidden_def (readlinkat) |