The assumption in the original commit for --builddir (648d3cedbc),
was to assume that without a --builddir, and when --srcdir
is specified, that the builddir is the same as the srcdir.
The problem is that this assumption does not hold for out-of-source
builds and we can figure out the builddir by looking for where
mysql_install_db script is.
As mysql_install_db is in the builddir, we use dirname0 as the builddir after
checking that my_print_defaults is also located from dirname0, otherwise
default to old behavior.
but even if this script called as /bin/mysql_install_db
it is still standard install and scripts are in /usr/share/
(but not in the /share/)
2. fix of bindir path
Avoid introducing new dependencies or new syntax.
That is, don't use $(...) and don't assume dirname is present.
And remove unsighty /foo/bar/../xyz from the path. Use dirname
instead of ../
1. detect resolveip location, don' assume it's in $basedir/bin
2. don't guess $scriptdir to (incorrectly) construct the $0 path
3. rename find_in_basedir -> find_in_dirs, don't prepend $basedir
automatically. This allows to use identical path lists in
find_in_dirs and in cannot_find_file.
4. move search path lists to CMakeLists.txt to avoid specifying the
same path list twice (in find_in_dirs and in cannot_find_file).
In Debian, the default install is made more secure by omitting the anonymous
user and by making the root account authenticate by unix socket
authentication instead of the default password-less root. However, Debian
hard-codes this change in mysql_install_db, which breaks that program for
other users.
This commit instead implements new general options for mysql_install_db that
can be used by anyone to similarly perform a more secure install:
--skip-auth-anonymous-user: omits the anonymous user.
--auth-root-authentication-method=normal: Keeps the existing behaviour
with a password-less root account. Currently on by default.
--auth-root-socket-user=USER
--auth-root-authentication-method=socket: creates the MariaDB root user
with the name USER (defaults to 'root') and using unix socket
authentication. This way, only that user has MariaDB root access
after install.
The idea with --auth-root-authentication-method=normal is that
applications that need this behaviour can give that option explicitly.
Then eventually we could make --auth-root-authentication-method=socket
the default, giving a more secure default installation.
Note that it is perfectly possible to do a secure install with
--auth-root-authentication-method=normal. For example, installing a
private server just for local access by a single OS-level user, by
using --skip-networking and putting the connection socket in a
location without public access. So it is important to preserve this
API for backwards compatibility.
