From 5c46041a9c8e0431f0b329a94becfc5d576d12cb Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Fri, 16 Dec 2005 00:24:16 +0000 Subject: * sysdeps/unix/sysv/linux/renameat.c: Move errno setting code in separate function __atfct_seterrno_2. * include/fcntl.h: Declare __atfct_seterrno_2. * posix/unistd.h: Declare linkat, symlinkat, readlinkat. * io/Makefile (routines): Add linkat, symlinkat, readlinkat. * io/Versions [GLIBC_2.4]: Export linkat, symlinkat, readlinkat. * io/linkat.c: New file. * io/readlinkat.c: New file. * io/symlinkat.c: New file. * sysdeps/unix/sysv/linux/linkat.c: New file. * sysdeps/unix/sysv/linux/readlinkat.c: New file. * sysdeps/unix/sysv/linux/symlinkat.c: New file. --- io/readlinkat.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 io/readlinkat.c (limited to 'io/readlinkat.c') diff --git a/io/readlinkat.c b/io/readlinkat.c new file mode 100644 index 0000000000..c6a032c474 --- /dev/null +++ b/io/readlinkat.c @@ -0,0 +1,50 @@ +/* Copyright (C) 2005 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 +#include +#include + +/* Read the contents of the symbolic link PATH 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. */ +int +readlinkat (fd, path, buf, len) + int fd; + const char *path; + char *buf; + size_t len; +{ + if (path == NULL) + { + __set_errno (EINVAL); + return -1; + } + + if (fd != AT_FDCWD && fd < 0 && *path != '/') + { + __set_errno (EBADF); + return -1; + } + + __set_errno (ENOSYS); + return -1; +} +stub_warning (readlinkat) + +#include -- cgit 1.4.1