NAME
readlink - read value of a symbolic link

SYNOPSIS
cc = readlink(path, buf, bufsiz)
int cc;
const char *path;
char *buf;
int bufsiz;

DESCRIPTION
Readlink places the contents of the symbolic link name in the
buffer buf, which has size bufsiz. The contents of the link are
not null terminated when returned.

RETURN VALUE
The call returns the count of characters placed in the buffer if it
succeeds, or a -1 if an error occurs, placing the error code in the
global variable errno.

ERRORS
Readlink will fail and the file mode will be unchanged if:

[ENOTDIR] A component of the path prefix is not a directory.

[EINVAL] The pathname contains a character with the high-
order bit set.

[ENAMETOOLONG] A component of a pathname exceeded 255 characters,
or an entire path name exceeded 1023 characters.

[ENOENT] The named file does not exist.

[EACCES] Search permission is denied for a component of the
path prefix.

[ELOOP] Too many symbolic links were encountered in
translating the pathname.

[EINVAL] The named file is not a symbolic link.

[EIO] An I/O error occurred while reading from the file
system.

[EFAULT] Buf extends outside the process’s allocated address
space.

SEE ALSO
stat(2), lstat(2), symlink(2)