SYMLINK(2) BSD Programmer's Manual SYMLINK(2)
symlink - make symbolic link to a file
symlink(const char *name1, const char *name2);
A symbolic link name2 is created to name1 (name2 is the name of the file
created, name1 is the string used in creating the symbolic link). Either
name may be an arbitrary path name; the files need not be on the same
Upon successful completion, a zero value is returned. If an error oc-
curs, the error code is stored in errno and a -1 value is returned.
The symbolic link succeeds unless:
A component of the name2 prefix is not a directory.
[EINVAL] Either name1 or name2 contains a character with the high-order
A component of either pathname exceeded 255 characters, or the
entire length of either path name exceeded 1023 characters.
[ENOENT] The named file does not exist.
[EACCES] A component of the name2 path prefix denies search permission.
[ELOOP] Too many symbolic links were encountered in translating the
[EEXIST] Name2 already exists.
[EIO] An I/O error occurred while making the directory entry for
name2, or allocating the inode for name2, or writing out the
link contents of name2.
[EROFS] The file name2 would reside on a read-only file system.
[ENOSPC] The directory in which the entry for the new symbolic link is
being placed cannot be extended because there is no space left
on the file system containing the directory.
[ENOSPC] The new symbolic link cannot be created because there there is
no space left on the file system that will contain the symbolic
[ENOSPC] There are no free inodes on the file system on which the sym-
bolic link is being created.
[EDQUOT] The directory in which the entry for the new symbolic link is
being placed cannot be extended because the user's quota of
disk blocks on the file system containing the directory has
[EDQUOT] The new symbolic link cannot be created because the user's quo-
ta of disk blocks on the file system that will contain the sym-
bolic link has been exhausted.
[EDQUOT] The user's quota of inodes on the file system on which the sym-
bolic link is being created has been exhausted.
[EIO] An I/O error occurred while making the directory entry or allo-
cating the inode.
[EFAULT] Name1 or name2 points outside the process's allocated address
link(2), ln(1), unlink(2)
The symlink function call appeared in 4.2BSD.
4.2 Berkeley Distribution June 4, 1993 2