symlinkat

symlinkat - create a symbolic link relative to a directory file descriptor

#define _ATFILE_SOURCE
#include <stdio.h>
 I int symlinkat(const char * oldpath , int  newdirfd \
", const char *" newpath );

The R symlinkat () system call operates in exactly the same way as symlink(2), except for the differences described in this manual page. If the pathname given in newpath is relative, then it is interpreted relative to the directory referred to by the file descriptor R newdirfd (rather than relative to the current working directory of the calling process, as is done by symlink(2) for a relative pathname). If newpath is relative and newdirfd is the special value R AT_FDCWD , then newpath is interpreted relative to the current working directory of the calling process (like symlink(2)). If R newpath is absolute, then newdirfd is ignored.

On success, R symlinkat () returns 0. On error, -1 is returned and errno is set to indicate the error.

The same errors that occur for symlink(2) can also occur for R symlinkat (). The following additional errors can occur for R symlinkat ():

EBADF

ENOTDIR

R symlinkat () was added to Linux in kernel 2.6.16.

This system call is non-standard but is proposed for inclusion in a future revision of POSIX.1.

See openat(2) for an explanation of the need for R symlinkat ().

openat(2), symlink(2), path_resolution(7)