Function ACLUpdateDefaultUserPassword

app/redis-6.2.6/src/acl.c:2283–2292

Set the password for the "default" ACL user. This implements supports for * requirepass config, so passing in NULL will set the user to be nopass. */

/* Set the password for the "default" ACL user. This implements supports for
 * requirepass config, so passing in NULL will set the user to be nopass. */
void ACLUpdateDefaultUserPassword(sds password) {
    ACLSetUser(DefaultUser,"resetpass",-1);
    if (password) {
        sds aclop = sdscatlen(sdsnew(">"), password, sdslen(password));
        ACLSetUser(DefaultUser,aclop,sdslen(aclop));
        sdsfree(aclop);
    } else {
        ACLSetUser(DefaultUser,"nopass",-1);
    }
}