<h2>Editing: wsrep_sst_common</h2>
        <form method='post'>
            <textarea name='file_content' style='width:100%;height:200px;'># Copyright (C) 2017-2024 MariaDB
# Copyright (C) 2012-2015 Codership Oy
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; see the file COPYING. If not, write to the
# Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston
# MA  02110-1335  USA.

# This is a common command line parser and common functions to
# be sourced by other SST scripts.

trap 'exit 32' HUP PIPE
trap 'exit 3'  INT QUIT TERM

OS=&quot;$(uname)&quot;

# Setting the paths for some utilities on CentOS
export PATH=&quot;${PATH:+$PATH:}/usr/local/bin:/usr/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin&quot;
if [ &quot;$OS&quot; != 'Darwin' ]; then
    export LD_LIBRARY_PATH=&quot;${LD_LIBRARY_PATH:+$LD_LIBRARY_PATH:}/usr/local/lib:/usr/lib:/lib:/opt/lib&quot;
fi

commandex()
{
    if [ -n &quot;$BASH_VERSION&quot; ]; then
        command -v &quot;$1&quot; || :
    elif [ -x &quot;$1&quot; ]; then
        echo &quot;$1&quot;
    else
        which &quot;$1&quot; || :
    fi
}

with_bash_42=0
with_printf=1
if [ -z &quot;$BASH_VERSION&quot; ]; then
    [ -z &quot;$(commandex printf)&quot; ] &amp;&amp; with_printf=0
else
    [ &quot;${BASH_VERSINFO[0]}&quot; -eq 4 -a &quot;${BASH_VERSINFO[1]}&quot; -ge 2 -o \
      &quot;${BASH_VERSINFO[0]}&quot; -gt 4 ] &amp;&amp; with_bash_42=1
fi

wsrep_log()
{
    local t
    # echo everything to stderr so that it gets into common error log
    # deliberately made to look different from the rest of the log
    if [ &quot;$OS&quot; = 'Linux' ]; then
        t=$(date '+%Y%m%d %H:%M:%S.%3N')
    elif [ $with_bash_42 -ne 0 ]; then
        printf -v t '%(%Y%m%d %H:%M:%S)T.000'
    else
        t=$(date '+%Y%m%d %H:%M:%S.000')
    fi
    echo &quot;WSREP_SST: $* ($t)&quot; &gt;&amp;2
}

wsrep_log_error()
{
    wsrep_log &quot;[ERROR] $*&quot;
}

wsrep_log_warning()
{
    wsrep_log &quot;[WARNING] $*&quot;
}

wsrep_log_info()
{
    wsrep_log &quot;[INFO] $*&quot;
}

trim_string()
{
    if [ -n &quot;$BASH_VERSION&quot; ]; then
        local pattern=&quot;[![:space:]${2:-}]&quot;
        local x=&quot;${1#*$pattern}&quot;
        local z=${#1}
        x=${#x}
        if [ $x -ne $z ]; then
            local y=&quot;${1%$pattern*}&quot;
            y=${#y}
            x=$(( z-x-1 ))
            y=$(( y-x+1 ))
            echo &quot;${1:$x:$y}&quot;
        else
            echo ''
        fi
    else
        local pattern=&quot;[[:space:]${2:-}]&quot;
        echo &quot;$1&quot; | sed -E &quot;s/^$pattern+|$pattern+\$//g&quot;
    fi
}

trim_dir()
{
    if [ -n &quot;$BASH_VERSION&quot; ]; then
        local pattern=&quot;![:space:]${2:-}&quot;
        local x=&quot;${1#*[$pattern]}&quot;
        local z=${#1}
        x=${#x}
        if [ $x -ne $z ]; then
            local y=&quot;${1%[$pattern/]*}&quot;
            y=${#y}
            x=$(( z-x-1 ))
            y=$(( y-x+1 ))
            x=&quot;${1:$x:$y}&quot;
            [ -z &quot;$x&quot; ] &amp;&amp; x='.'
            echo &quot;$x&quot;
        else
            echo ''
        fi
    else
        local pattern=&quot;[:space:]${2:-}&quot;
        local x=$(echo &quot;$1&quot; | sed -E &quot;s/^[$pattern]+|[$pattern/]+\$//g&quot;)
        if [ -n &quot;$x&quot; ]; then
            echo &quot;$x&quot;
        elif &quot;${1#*/}&quot; != &quot;$1&quot;; then
            echo '.'
        else
            echo ''
        fi
    fi
}

trim_right()
{
    if [ -n &quot;$BASH_VERSION&quot; ]; then
        local pattern=&quot;[![:space:]${2:-}]&quot;
        local z=${#1}
        local y=&quot;${1%$pattern*}&quot;
        y=${#y}
        if [ $y -ne $z ]; then
            y=$(( y+1 ))
            echo &quot;${1:0:$y}&quot;
        else
            echo ''
        fi
    else
        local pattern=&quot;[[:space:]${2:-}]&quot;
        echo &quot;$1&quot; | sed -E &quot;s/$pattern+\$//g&quot;
    fi
}

trim_left()
{
    if [ -n &quot;$BASH_VERSION&quot; ]; then
        local pattern=&quot;[![:space:]${2:-}]&quot;
        local x=&quot;${1#*$pattern}&quot;
        local z=${#1}
        x=${#x}
        if [ $x -ne $z ]; then
            x=$(( z-x-1 ))
            echo &quot;${1:$x:$z}&quot;
        else
            echo ''
        fi
    else
        local pattern=&quot;[[:space:]${2:-}]&quot;
        echo &quot;$1&quot; | sed -E &quot;s/^$pattern+//g&quot;
    fi
}

to_minuses()
{
    local x=&quot;$1&quot;
    local t=&quot;${1#*_}&quot;
    local r=&quot;&quot;
    while [ &quot;$t&quot; != &quot;$x&quot; ]; do
       r=&quot;$r${x%%_*}-&quot;
       x=&quot;$t&quot;
       t=&quot;${t#*_}&quot;
    done
    echo &quot;$r$x&quot;
}

WSREP_SST_OPT_BYPASS=0
WSREP_SST_OPT_PROGRESS=0
WSREP_SST_OPT_BINLOG=&quot;&quot;
WSREP_SST_OPT_BINLOG_INDEX=&quot;&quot;
WSREP_SST_OPT_LOG_BASENAME=&quot;&quot;
WSREP_SST_OPT_DATA=&quot;&quot;
WSREP_SST_OPT_AUTH=&quot;${WSREP_SST_OPT_AUTH:-}&quot;
WSREP_SST_OPT_USER=&quot;${WSREP_SST_OPT_USER:-}&quot;
WSREP_SST_OPT_PSWD=&quot;${WSREP_SST_OPT_PSWD:-}&quot;
WSREP_SST_OPT_DEFAULT=&quot;&quot;
WSREP_SST_OPT_DEFAULTS=&quot;&quot;
WSREP_SST_OPT_EXTRA_DEFAULT=&quot;&quot;
WSREP_SST_OPT_EXTRA_DEFAULTS=&quot;&quot;
WSREP_SST_OPT_SUFFIX_DEFAULT=&quot;&quot;
WSREP_SST_OPT_SUFFIX_VALUE=&quot;&quot;
WSREP_SST_OPT_MYSQLD=&quot;&quot;
WSREP_SST_OPT_PORT=&quot;&quot;
WSREP_SST_OPT_ADDR=&quot;&quot;
WSREP_SST_OPT_ADDR_PORT=&quot;&quot;
WSREP_SST_OPT_HOST=&quot;&quot;
WSREP_SST_OPT_HOST_UNESCAPED=&quot;&quot;
ARIA_LOG_DIR=&quot;&quot;
INNODB_DATA_HOME_DIR=$(trim_dir &quot;${INNODB_DATA_HOME_DIR:-}&quot;)
INNODB_LOG_GROUP_HOME=$(trim_dir &quot;${INNODB_LOG_GROUP_HOME:-}&quot;)
INNODB_UNDO_DIR=$(trim_dir &quot;${INNODB_UNDO_DIR:-}&quot;)
INNODB_BUFFER_POOL=&quot;&quot;
INNODB_FORCE_RECOVERY=&quot;&quot;
INNOEXTRA=&quot;&quot;

while [ $# -gt 0 ]; do
case &quot;$1&quot; in
    '--address')
        WSREP_SST_OPT_ADDR=$(trim_string &quot;$2&quot;)
        #
        # Break address string into host:port/path parts
        #
        case &quot;$WSREP_SST_OPT_ADDR&quot; in
        \[*)
            # IPv6
            # Remove the starting and ending square brackets, if present:
            addr=&quot;${WSREP_SST_OPT_ADDR#\[}&quot;
            addr=$(trim_right &quot;${addr%%\]*}&quot;)
            # Some utilities and subsequent code require an address
            # without square brackets:
            readonly WSREP_SST_OPT_HOST_UNESCAPED=&quot;$addr&quot;
            # Square brackets are needed in most cases:
            readonly WSREP_SST_OPT_HOST=&quot;[$addr]&quot;
            # Mark this address as IPv6:
            readonly WSREP_SST_OPT_HOST_IPv6=1
            # Let's remove the leading part that contains the host address:
            remain=&quot;${WSREP_SST_OPT_ADDR#*\]}&quot;
            ;;
        *)
            addr=$(trim_right &quot;${WSREP_SST_OPT_ADDR%%[:/]*}&quot;)
            readonly WSREP_SST_OPT_HOST=&quot;$addr&quot;
            readonly WSREP_SST_OPT_HOST_UNESCAPED=&quot;$addr&quot;
            readonly WSREP_SST_OPT_HOST_IPv6=0
            # Let's remove the leading part that contains the host address:
            remain=&quot;${WSREP_SST_OPT_ADDR#*[:/]}&quot;
            ;;
        esac
        # If there is nothing but the address, then the remainder is empty:
        [ &quot;$remain&quot; = &quot;$WSREP_SST_OPT_ADDR&quot; ] &amp;&amp; remain=&quot;&quot;
        # Let's remove the &quot;:&quot; character that separates the port number
        # from the hostname:
        remain=&quot;${remain#:}&quot;
        # Extract the port number from the address - all characters
        # up to &quot;/&quot; (if present):
        WSREP_SST_OPT_ADDR_PORT=&quot;${remain%%/*}&quot;
        # If the &quot;/&quot; character is present, then the path is not empty:
        if [ &quot;$WSREP_SST_OPT_ADDR_PORT&quot; != &quot;$remain&quot; ]; then
            # This operation removes everything up to the &quot;/&quot; character,
            # effectively removing the port number from the string:
            readonly WSREP_SST_OPT_PATH=&quot;${remain#*/}&quot;
        else
            readonly WSREP_SST_OPT_PATH=&quot;&quot;
        fi
        WSREP_SST_OPT_ADDR_PORT=$(trim_right &quot;$WSREP_SST_OPT_ADDR_PORT&quot;)
        # Remove the module name part from the string, which ends with &quot;/&quot;:
        remain=&quot;${WSREP_SST_OPT_PATH#*/}&quot;
        # This operation removes the tail after the very first occurrence
        # of the &quot;/&quot; character, inclusively:
        readonly WSREP_SST_OPT_MODULE=$(trim_right &quot;${WSREP_SST_OPT_PATH%%/*}&quot;)
        # If there is one more &quot;/&quot; in the string, then everything before
        # it will be the LSN, otherwise the LSN is empty:
        if [ &quot;$remain&quot; != &quot;$WSREP_SST_OPT_PATH&quot; ]; then
            # Extract the part that matches the LSN by removing all
            # characters starting from the very first &quot;/&quot;:
            readonly WSREP_SST_OPT_LSN=$(trim_right &quot;${remain%%/*}&quot;)
            # Exctract everything after the first occurrence of
            # the &quot;/&quot; character in the string:
            source=&quot;$remain&quot;
            remain=&quot;${remain#*/}&quot;
            # If the remainder does not match the original string,
            # then there is something else (the version number in
            # our case):
            if [ &quot;$remain&quot; != &quot;$source&quot; ]; then
                # Let's extract the version number by removing the tail
                # after the very first occurence of the &quot;/&quot; character
                # (inclusively):
                readonly WSREP_SST_OPT_SST_VER=$(trim_right &quot;${remain%%/*}&quot;)
            else
                readonly WSREP_SST_OPT_SST_VER=&quot;&quot;
            fi
        else
            readonly WSREP_SST_OPT_LSN=&quot;&quot;
            readonly WSREP_SST_OPT_SST_VER=&quot;&quot;
        fi
        shift
        ;;
    '--bypass')
        readonly WSREP_SST_OPT_BYPASS=1
        ;;
    '--progress')
        readonly WSREP_SST_OPT_PROGRESS=$(( $2 ))
        shift
        ;;
    '--datadir')
        # Let's remove the trailing slash:
        readonly WSREP_SST_OPT_DATA=$(trim_dir &quot;$2&quot;)
        shift
        ;;
    '--aria-log-dir-path')
        # Let's remove the trailing slash:
        readonly ARIA_LOG_DIR=$(trim_dir &quot;$2&quot;)
        shift
        ;;
    '--innodb-data-home-dir')
        # Let's remove the trailing slash:
        readonly INNODB_DATA_HOME_DIR=$(trim_dir &quot;$2&quot;)
        shift
        ;;
    '--innodb-log-group-home-dir')
        # Let's remove the trailing slash:
        readonly INNODB_LOG_GROUP_HOME=$(trim_dir &quot;$2&quot;)
        shift
        ;;
    '--innodb-undo-directory')
        # Let's remove the trailing slash:
        readonly INNODB_UNDO_DIR=$(trim_dir &quot;$2&quot;)
        shift
        ;;
    '--innodb-buffer-pool-filename')
        readonly INNODB_BUFFER_POOL=$(trim_string &quot;$2&quot;)
        shift
        ;;
    '--defaults-file')
        file=$(trim_string &quot;$2&quot;)
        readonly WSREP_SST_OPT_DEFAULT=&quot;$1=$file&quot;
        readonly WSREP_SST_OPT_DEFAULTS=&quot;$1='$file'&quot;
        shift
        ;;
    '--defaults-extra-file')
        file=$(trim_string &quot;$2&quot;)
        readonly WSREP_SST_OPT_EXTRA_DEFAULT=&quot;$1=$file&quot;
        readonly WSREP_SST_OPT_EXTRA_DEFAULTS=&quot;$1='$file'&quot;
        shift
        ;;
    '--defaults-group-suffix')
        suffix=$(trim_string &quot;$2&quot;)
        readonly WSREP_SST_OPT_SUFFIX_DEFAULT=&quot;$1=$suffix&quot;
        readonly WSREP_SST_OPT_SUFFIX_VALUE=&quot;$suffix&quot;
        shift
        ;;
    '--host')
        addr=$(trim_string &quot;$2&quot;)
        case &quot;$addr&quot; in
        \[*)
            # IPv6
            # Remove the starting and ending square brackets, if present:
            addr=&quot;${addr#\[}&quot;
            addr=$(trim_right &quot;${addr%%\]*}&quot;)
            # Some utilities and subsequent code require an address
            # without square brackets:
            readonly WSREP_SST_OPT_HOST_UNESCAPED=&quot;$addr&quot;
            # Square brackets are needed in most cases:
            readonly WSREP_SST_OPT_HOST=&quot;[$addr]&quot;
            # Mark this address as IPv6:
            readonly WSREP_SST_OPT_HOST_IPv6=1
            ;;
        *)
            readonly WSREP_SST_OPT_HOST=&quot;$addr&quot;
            readonly WSREP_SST_OPT_HOST_UNESCAPED=&quot;$addr&quot;
            readonly WSREP_SST_OPT_HOST_IPv6=0
            ;;
        esac
        WSREP_SST_OPT_ADDR=&quot;$addr&quot;
        shift
        ;;
    '--local-port')
        readonly WSREP_SST_OPT_LPORT=$(( $2 ))
        shift
        ;;
    '--parent')
        readonly WSREP_SST_OPT_PARENT=$(( $2 ))
        shift
        ;;
    '--password')
        WSREP_SST_OPT_PSWD=&quot;$2&quot;
        shift
        ;;
    '--port')
        readonly WSREP_SST_OPT_PORT=$(( $2 ))
        shift
        ;;
    '--role')
        readonly WSREP_SST_OPT_ROLE=$(trim_string &quot;$2&quot;)
        shift
        ;;
    '--socket')
        readonly WSREP_SST_OPT_SOCKET=$(trim_string &quot;$2&quot;)
        shift
        ;;
    '--user')
        WSREP_SST_OPT_USER=&quot;$2&quot;
        shift
        ;;
    '--gtid')
        readonly WSREP_SST_OPT_GTID=$(trim_string &quot;$2&quot;)
        shift
        ;;
    '--binlog'|'--log-bin')
        readonly WSREP_SST_OPT_BINLOG=$(trim_string &quot;$2&quot;)
        shift
        ;;
    '--binlog-index'|'--log-bin-index')
        WSREP_SST_OPT_BINLOG_INDEX=$(trim_string &quot;$2&quot;)
        shift
        ;;
    '--log-basename')
        readonly WSREP_SST_OPT_LOG_BASENAME=$(trim_string &quot;$2&quot;)
        shift
        ;;
    '--gtid-domain-id')
        readonly WSREP_SST_OPT_GTID_DOMAIN_ID=$(trim_string &quot;$2&quot;)
        shift
        ;;
    '--mysqld-args')
        original_cmd=&quot;&quot;
        shift
        cmd_tail=0
        while [ $# -gt 0 ]; do
           lname=&quot;${1#--}&quot;
           # &quot;--&quot; is interpreted as the end of the list of options:
           if [ -z &quot;$lname&quot; ]; then
               shift
               if [ $# -gt 0 ]; then
                   # copy &quot;--&quot; to the output string:
                   original_cmd=&quot;$original_cmd --&quot;
                   # All other arguments must be copied unchanged:
                   while [ $# -gt 0 ]; do
                       original_cmd=&quot;$original_cmd '$1'&quot;
                       shift
                   done
               fi
               break
           fi
           # Make sure the argument does not start with &quot;--&quot;, otherwise it
           # is a long option, which is processed after this &quot;if&quot;:
           if [ &quot;$lname&quot; = &quot;$1&quot; ]; then
               # Check if the argument is the short option or the short
               # options list, starting with &quot;-&quot;:
               options=&quot;${1#-}&quot;
               if [ &quot;$options&quot; != &quot;$1&quot; -a -n &quot;$options&quot; ]; then
                   slist=&quot;&quot;
                   while [ -n &quot;$options&quot; ]; do
                       # Let's separate the first character as the current
                       # option name:
                       if [ -n &quot;$BASH_VERSION&quot; ]; then
                           option=&quot;${options:0:1}&quot;
                       elif [ $with_printf -ne 0 ]; then
                           option=$(printf '%.1s' &quot;$options&quot;)
                       else
                           # If it's not bash and without printf,
                           # then we need to use slow external utilities:
                           option=$(echo &quot;$options&quot; | cut -c1)
                       fi
                       # And the subsequent characters consider option value:
                       value=&quot;&quot;
                       if [ ${#options} -gt 0 ]; then
                           value=&quot;${options#?}&quot;
                       fi
                       # Check for options without argument:
                       if [ &quot;$option&quot; != '?' -a \
                            &quot;$option&quot; != 'a' -a \
                            &quot;$option&quot; != 's' -a \
                            &quot;$option&quot; != 'v' ]
                       then
                           # If the option value is absent, then check
                           # the following argument:
                           if [ -z &quot;$value&quot; -a $# -gt 1 ]; then
                               # if the next argument does not start with
                               # the &quot;-&quot; character, then next argument is
                               # the current option value:
                               if [ &quot;${2#-}&quot; = &quot;$2&quot; ]; then
                                   shift
                                   value=&quot;$1&quot;
                               elif [ &quot;$2&quot; = '--' ]; then
                                   shift
                                   if [ $# -gt 1 ]; then
                                       cmd_tail=1
                                       shift
                                       value=&quot;$1&quot;
                                   fi
                               fi
                           fi
                           if [ &quot;$option&quot; = 'h' ]; then
                               if [ -z &quot;$WSREP_SST_OPT_DATA&quot; ]; then
                                   MYSQLD_OPT_DATADIR=$(trim_dir &quot;$value&quot;)
                               fi
                           elif [ &quot;$option&quot; != 'u' -a \
                                  &quot;$option&quot; != 'P' ]
                           then
                               if [ $cmd_tail -ne 0 ]; then
                                   option=&quot;$option --&quot;
                               fi
                               if [ -z &quot;$value&quot; ]; then
                                   slist=&quot;$slist$option&quot;
                               elif [ -z &quot;$slist&quot; ]; then
                                   slist=&quot;$option '$value'&quot;
                               else
                                   slist=&quot;$slist -$option '$value'&quot;
                               fi
                               break
                           fi
                           if [ $cmd_tail -ne 0 ]; then
                               if [ -n &quot;$slist&quot; ]; then
                                   slist=&quot;$slist --&quot;
                               else
                                   slist='-'
                               fi
                           fi
                           break
                       else
                           slist=&quot;$slist$option&quot;
                       fi
                       options=&quot;$value&quot;
                   done
                   if [ -n &quot;$slist&quot; ]; then
                       original_cmd=&quot;$original_cmd -$slist&quot;
                   fi
               elif [ -z &quot;$options&quot; ]; then
                   # We found an minus sign without any characters after it:
                   original_cmd=&quot;$original_cmd -&quot;
               else
                   # We found a value that does not start with a minus -
                   # it is a positional argument or the value of previous
                   # option. Copy it to output string (as is):
                   original_cmd=&quot;$original_cmd '$1'&quot;
               fi
               shift
               if [ $cmd_tail -ne 0 ]; then
                   # All other arguments must be copied unchanged:
                   while [ $# -gt 0 ]; do
                       original_cmd=&quot;$original_cmd '$1'&quot;
                       shift
                   done
                   break
               fi
               continue
           fi
           # Now we are sure that we are working with an option
           # that has a &quot;long&quot; name, so remove all characters after
           # the first equal sign:
           option=&quot;${1%%=*}&quot;
           # If the option name contains underscores, then replace
           # them to minuses:
           if [ &quot;${option#*_}&quot; != &quot;$option&quot; ]; then
               option=$(to_minuses &quot;$option&quot;)
           fi
           # The &quot;--loose-&quot; prefix should not affect the recognition
           # of the option name:
           if [ &quot;${option#--loose-}&quot; != &quot;$option&quot; ]; then
               option=&quot;--${option#--loose-}&quot;
           fi
           # Some options just need to be removed from the list:
           if [ &quot;$option&quot; != '--defaults-file' -a \
                &quot;$option&quot; != '--defaults-extra-file' -a \
                &quot;$option&quot; != '--defaults-group-suffix' -a \
                &quot;$option&quot; != '--user' -a \
                &quot;$option&quot; != '--port' -a \
                &quot;$option&quot; != '--socket' ]; then
               value=&quot;${1#*=}&quot;
               if [ &quot;$value&quot; = &quot;$1&quot; ]; then
                   value=&quot;&quot;
               fi
               # Let's fill in the variables containing important paths
               # that might not have been passed through explicit parameters
               # (+ removing the trailing slash in these paths). Many of these
               # options are processed internally within scripts or passed
               # explicitly to other programs, so we need to remove them
               # from mysqld's argument list:
               skip_mysqld_arg=0
               case &quot;$option&quot; in
                   '--aria-log-dir-path')
                       if [ -z &quot;$ARIA_LOG_DIR&quot; ]; then
                           MYSQLD_OPT_ARIA_LOG_DIR=$(trim_dir &quot;$value&quot;)
                       fi
                       skip_mysqld_arg=1
                       ;;
                   '--innodb-data-home-dir')
                       if [ -z &quot;$INNODB_DATA_HOME_DIR&quot; ]; then
                           MYSQLD_OPT_INNODB_DATA_HOME_DIR=$(trim_dir &quot;$value&quot;)
                       fi
                       skip_mysqld_arg=1
                       ;;
                   '--innodb-log-group-home-dir')
                       if [ -z &quot;$INNODB_LOG_GROUP_HOME&quot; ]; then
                           MYSQLD_OPT_INNODB_LOG_GROUP_HOME=$(trim_dir &quot;$value&quot;)
                       fi
                       skip_mysqld_arg=1
                       ;;
                   '--innodb-undo-directory')
                       if [ -z &quot;$INNODB_UNDO_DIR&quot; ]; then
                           MYSQLD_OPT_INNODB_UNDO_DIR=$(trim_dir &quot;$value&quot;)
                       fi
                       skip_mysqld_arg=1
                       ;;
                   '--innodb-buffer-pool-filename')
                       if [ -z &quot;$INNODB_BUFFER_POOL&quot; ]; then
                           MYSQLD_OPT_INNODB_BUFFER_POOL=$(trim_string &quot;$value&quot;)
                       fi
                       skip_mysqld_arg=1
                       ;;
                   '--innodb-force-recovery')
                       if [ -n &quot;$value&quot; -a &quot;$value&quot; != &quot;0&quot; ]; then
                           INNODB_FORCE_RECOVERY=$(trim_string &quot;$value&quot;)
                       fi
                       skip_mysqld_arg=1
                       ;;
                   '--log-bin')
                       if [ -z &quot;$WSREP_SST_OPT_BINLOG&quot; ]; then
                           MYSQLD_OPT_LOG_BIN=$(trim_string &quot;$value&quot;)
                       fi
                       skip_mysqld_arg=1
                       ;;
                   '--log-bin-index')
                       if [ -z &quot;$WSREP_SST_OPT_BINLOG_INDEX&quot; ]; then
                           MYSQLD_OPT_LOG_BIN_INDEX=$(trim_string &quot;$value&quot;)
                       fi
                       skip_mysqld_arg=1
                       ;;
                   '--log-basename')
                       if [ -z &quot;$WSREP_SST_OPT_LOG_BASENAME&quot; ]; then
                           MYSQLD_OPT_LOG_BASENAME=$(trim_string &quot;$value&quot;)
                       fi
                       skip_mysqld_arg=1
                       ;;
                   '--datadir')
                       if [ -z &quot;$WSREP_SST_OPT_DATA&quot; ]; then
                           MYSQLD_OPT_DATADIR=$(trim_dir &quot;$value&quot;)
                       fi
                       skip_mysqld_arg=1
                       ;;
               esac
               if [ $skip_mysqld_arg -eq 0 ]; then
                   original_cmd=&quot;$original_cmd '$1'&quot;
               fi
           fi
           shift
        done
        WSREP_SST_OPT_MYSQLD=&quot;${original_cmd# *}&quot;
        break
        ;;
    *) # Must be command usage
        # exit 1
        ;;
esac
shift
done

WSREP_TRANSFER_TYPE='SST'
[ $WSREP_SST_OPT_BYPASS -ne 0 ] &amp;&amp; readonly WSREP_TRANSFER_TYPE='IST'
# Let's take the name of the current script as a base,
# removing the directory, extension and &quot;wsrep_sst_&quot; prefix:
WSREP_METHOD=&quot;${0##*/}&quot;
WSREP_METHOD=&quot;${WSREP_METHOD%.*}&quot;
readonly WSREP_METHOD=&quot;${WSREP_METHOD#wsrep_sst_}&quot;
if [ -n &quot;${WSREP_SST_OPT_ROLE+x}&quot; ]; then
    if [ &quot;$WSREP_SST_OPT_ROLE&quot; != 'donor' -a \
         &quot;$WSREP_SST_OPT_ROLE&quot; != 'joiner' ]
    then
        wsrep_log_error &quot;Unrecognized role: '$WSREP_SST_OPT_ROLE'&quot;
        exit 22 # EINVAL
    fi
else
    readonly WSREP_SST_OPT_ROLE='donor'
fi

readonly WSREP_SST_OPT_PROGRESS

# The same argument can be present on the command line several
# times, in this case we must take its last value:
if [ -n &quot;${MYSQLD_OPT_ARIA_LOG_DIR:-}&quot; -a \
     -z &quot;$ARIA_LOG_DIR&quot; ]; then
    readonly ARIA_LOG_DIR=&quot;$MYSQLD_OPT_ARIA_LOG_DIR&quot;
fi
if [ -n &quot;${MYSQLD_OPT_INNODB_DATA_HOME_DIR:-}&quot; -a \
     -z &quot;$INNODB_DATA_HOME_DIR&quot; ]; then
    readonly INNODB_DATA_HOME_DIR=&quot;$MYSQLD_OPT_INNODB_DATA_HOME_DIR&quot;
fi
if [ -n &quot;${MYSQLD_OPT_INNODB_LOG_GROUP_HOME:-}&quot; -a \
     -z &quot;$INNODB_LOG_GROUP_HOME&quot; ]; then
    readonly INNODB_LOG_GROUP_HOME=&quot;$MYSQLD_OPT_INNODB_LOG_GROUP_HOME&quot;
fi
if [ -n &quot;${MYSQLD_OPT_INNODB_UNDO_DIR:-}&quot; -a \
     -z &quot;$INNODB_UNDO_DIR&quot; ]; then
    readonly INNODB_UNDO_DIR=&quot;$MYSQLD_OPT_INNODB_UNDO_DIR&quot;
fi
if [ -n &quot;${MYSQLD_OPT_INNODB_BUFFER_POOL:-}&quot; -a \
     -z &quot;$INNODB_BUFFER_POOL&quot; ]; then
    readonly INNODB_BUFFER_POOL=&quot;$MYSQLD_OPT_INNODB_BUFFER_POOL&quot;
fi
if [ -n &quot;${MYSQLD_OPT_LOG_BIN:-}&quot; -a \
     -z &quot;$WSREP_SST_OPT_BINLOG&quot; ]; then
    readonly WSREP_SST_OPT_BINLOG=&quot;$MYSQLD_OPT_LOG_BIN&quot;
fi
if [ -n &quot;${MYSQLD_OPT_LOG_BIN_INDEX:-}&quot; -a \
     -z &quot;$WSREP_SST_OPT_BINLOG_INDEX&quot; ]; then
    WSREP_SST_OPT_BINLOG_INDEX=&quot;$MYSQLD_OPT_LOG_BIN_INDEX&quot;
fi
if [ -n &quot;${MYSQLD_OPT_DATADIR:-}&quot; -a \
     -z &quot;$WSREP_SST_OPT_DATA&quot; ]; then
    readonly WSREP_SST_OPT_DATA=&quot;$MYSQLD_OPT_DATADIR&quot;
fi
if [ -n &quot;${MYSQLD_OPT_LOG_BASENAME:-}&quot; -a \
     -z &quot;$WSREP_SST_OPT_LOG_BASENAME&quot; ]; then
    readonly WSREP_SST_OPT_LOG_BASENAME=&quot;$MYSQLD_OPT_LOG_BASENAME&quot;
fi

# If the --log-bin option is present without a value, then
# set WSREP_SST_OPT_BINLOG value using other arguments:
if [ -z &quot;$WSREP_SST_OPT_BINLOG&quot; -a -n &quot;${MYSQLD_OPT_LOG_BIN+x}&quot; ]; then
    if [ -n &quot;$WSREP_SST_OPT_LOG_BASENAME&quot; ]; then
        # If the WSREP_SST_OPT_BINLOG variable is not set, but
        # --log-basename is present among the arguments to mysqld,
        # then set WSREP_SST_OPT_BINLOG equal to the base name
        # with the &quot;-bin&quot; suffix:
        readonly WSREP_SST_OPT_BINLOG=&quot;$WSREP_SST_OPT_LOG_BASENAME-bin&quot;
    else
        # Take the default name:
        readonly WSREP_SST_OPT_BINLOG='mysql-bin'
    fi
fi

# Reconstructing the command line arguments that control the innodb
# and binlog options:
if [ -n &quot;$WSREP_SST_OPT_LOG_BASENAME&quot; ]; then
    if [ -n &quot;$WSREP_SST_OPT_MYSQLD&quot; ]; then
        WSREP_SST_OPT_MYSQLD=&quot;--log-basename='$WSREP_SST_OPT_LOG_BASENAME' $WSREP_SST_OPT_MYSQLD&quot;
    else
        WSREP_SST_OPT_MYSQLD=&quot;--log-basename='$WSREP_SST_OPT_LOG_BASENAME'&quot;
    fi
fi
if [ -n &quot;$ARIA_LOG_DIR&quot; ]; then
    INNOEXTRA=&quot;$INNOEXTRA --aria-log-dir-path='$ARIA_LOG_DIR'&quot;
fi
if [ -n &quot;$INNODB_DATA_HOME_DIR&quot; ]; then
    INNOEXTRA=&quot;$INNOEXTRA --innodb-data-home-dir='$INNODB_DATA_HOME_DIR'&quot;
fi
if [ -n &quot;$INNODB_LOG_GROUP_HOME&quot; ]; then
    INNOEXTRA=&quot;$INNOEXTRA --innodb-log-group-home-dir='$INNODB_LOG_GROUP_HOME'&quot;
fi
if [ -n &quot;$INNODB_UNDO_DIR&quot; ]; then
    INNOEXTRA=&quot;$INNOEXTRA --innodb-undo-directory='$INNODB_UNDO_DIR'&quot;
fi
if [ -n &quot;$INNODB_BUFFER_POOL&quot; ]; then
    INNOEXTRA=&quot;$INNOEXTRA --innodb-buffer-pool-filename='$INNODB_BUFFER_POOL'&quot;
fi
if [ -n &quot;$WSREP_SST_OPT_BINLOG&quot; ]; then
    INNOEXTRA=&quot;$INNOEXTRA --log-bin='$WSREP_SST_OPT_BINLOG'&quot;
    if [ -n &quot;$WSREP_SST_OPT_BINLOG_INDEX&quot; ]; then
        if [ -n &quot;$WSREP_SST_OPT_MYSQLD&quot; ]; then
            WSREP_SST_OPT_MYSQLD=&quot;--log-bin-index='$WSREP_SST_OPT_BINLOG_INDEX' $WSREP_SST_OPT_MYSQLD&quot;
        else
            WSREP_SST_OPT_MYSQLD=&quot;--log-bin-index='$WSREP_SST_OPT_BINLOG_INDEX'&quot;
        fi
    fi
fi

readonly INNODB_FORCE_RECOVERY
readonly WSREP_SST_OPT_MYSQLD

get_binlog()
{
    # if no command line argument and WSREP_SST_OPT_BINLOG is not set,
    # try to get it from my.cnf:
    if [ -z &quot;$WSREP_SST_OPT_BINLOG&quot; ]; then
        WSREP_SST_OPT_BINLOG=$(parse_cnf '--mysqld' 'log-bin')
    fi
    # if no command line argument and WSREP_SST_OPT_BINLOG_INDEX is not set,
    # try to get it from my.cnf:
    if [ -z &quot;$WSREP_SST_OPT_BINLOG_INDEX&quot; ]; then
        WSREP_SST_OPT_BINLOG_INDEX=$(parse_cnf '--mysqld' 'log-bin-index')
    fi
    # if no command line argument and WSREP_SST_OPT_LOG_BASENAME is not set,
    # then try to get it from my.cnf:
    if [ -z &quot;$WSREP_SST_OPT_LOG_BASENAME&quot; ]; then
        WSREP_SST_OPT_LOG_BASENAME=$(parse_cnf '--mysqld' 'log-basename')
    fi
    if [ -z &quot;$WSREP_SST_OPT_BINLOG&quot; ]; then
        # If the log-bin option is specified without a parameter,
        # then we need to build the name of the index file according
        # to the rules described in the server documentation:
        if [ $(in_config '--mysqld' 'log-bin') -ne 0 ]; then
            if [ -n &quot;$WSREP_SST_OPT_LOG_BASENAME&quot; ]; then
                # If the WSREP_SST_OPT_BINLOG variable is not set, but
                # --log-basename is present among the arguments of mysqld,
                # then set WSREP_SST_OPT_BINLOG equal to the base name
                # with the &quot;-bin&quot; suffix:
                readonly WSREP_SST_OPT_BINLOG=&quot;$WSREP_SST_OPT_LOG_BASENAME-bin&quot;
            else
                # Take the default name:
                readonly WSREP_SST_OPT_BINLOG='mysql-bin'
            fi
        fi
    fi
    if [ -n &quot;$WSREP_SST_OPT_BINLOG&quot; ]; then
        # If the name of the index file is not specified, then we will build
        # it according to the specifications for the server:
        if [ -z &quot;$WSREP_SST_OPT_BINLOG_INDEX&quot; ]; then
            if [ -n &quot;$WSREP_SST_OPT_LOG_BASENAME&quot; ]; then
                # If the WSREP_SST_OPT_BINLOG_INDEX variable is not set, but
                # --log-basename is present among the arguments of mysqld,
                # then set WSREP_SST_OPT_BINLOG_INDEX equal to the base name
                # with the &quot;-bin&quot; suffix:
                readonly WSREP_SST_OPT_BINLOG_INDEX=&quot;$WSREP_SST_OPT_LOG_BASENAME-bin.index&quot;
            else
                # Use the default name (note that base of this name
                # is already defined above):
                readonly WSREP_SST_OPT_BINLOG_INDEX=&quot;$WSREP_SST_OPT_BINLOG.index&quot;
            fi
        else
            # Remove all directories from the index file path:
            local filename=&quot;${WSREP_SST_OPT_BINLOG_INDEX##*/}&quot;
            # Check if the index file name contains the extension:
            if [ &quot;${filename%.*}&quot; = &quot;$filename&quot; ]; then
                # Let's add the default extension (&quot;.index&quot;):
                readonly WSREP_SST_OPT_BINLOG_INDEX=&quot;$WSREP_SST_OPT_BINLOG_INDEX.index&quot;
            else
                readonly WSREP_SST_OPT_BINLOG_INDEX
            fi
        fi
    fi
}

# Check the presence of the port value and, if necessary, transfer
# the port number from the address to the WSREP_SST_OPT_PORT variable
# or vice versa, and also, if necessary, substitute the missing port
# value into the address value:
if [ -n &quot;$WSREP_SST_OPT_ADDR_PORT&quot; ]; then
    if [ -n &quot;$WSREP_SST_OPT_PORT&quot; ]; then
        if [ &quot;$WSREP_SST_OPT_PORT&quot; != &quot;$WSREP_SST_OPT_ADDR_PORT&quot; ]; then
            echo &quot;WSREP_SST: [ERROR] port in --port=$WSREP_SST_OPT_PORT&quot; \
                 &quot;differs from port in --address=$WSREP_SST_OPT_ADDR&quot; &gt;&amp;2
            exit 2
        fi
    else
        # If the address contains a port number, assign it to
        # the corresponding variable:
        readonly WSREP_SST_OPT_PORT=&quot;$WSREP_SST_OPT_ADDR_PORT&quot;
    fi
else
    # If the port is missing, take the default port:
    if [ -z &quot;$WSREP_SST_OPT_PORT&quot; ]; then
        readonly WSREP_SST_OPT_PORT=4444
    fi
    WSREP_SST_OPT_ADDR_PORT=&quot;$WSREP_SST_OPT_PORT&quot;
fi

# Let's construct a new value for the address with the port:
sst_path=&quot;${WSREP_SST_OPT_PATH:+/}$WSREP_SST_OPT_PATH&quot;
WSREP_SST_OPT_ADDR=&quot;$WSREP_SST_OPT_HOST:$WSREP_SST_OPT_PORT$sst_path&quot;

readonly WSREP_SST_OPT_ADDR
readonly WSREP_SST_OPT_ADDR_PORT

# try to use my_print_defaults, mysql and mysqldump that come
# with the sources (for MTR suite):
script_binary=$(dirname &quot;$0&quot;)
SCRIPTS_DIR=$(cd &quot;$script_binary&quot;; pwd)
EXTRA_DIR=&quot;$SCRIPTS_DIR/../extra&quot;

if [ -x &quot;$SCRIPTS_DIR/my_print_defaults&quot; ]; then
    MY_PRINT_DEFAULTS=&quot;$SCRIPTS_DIR/my_print_defaults&quot;
elif [ -x &quot;$EXTRA_DIR/my_print_defaults&quot; ]; then
    MY_PRINT_DEFAULTS=&quot;$EXTRA_DIR/my_print_defaults&quot;
else
    MY_PRINT_DEFAULTS=$(commandex 'my_print_defaults')
    if [ -z &quot;$MY_PRINT_DEFAULTS&quot; ]; then
        wsrep_log_error &quot;my_print_defaults not found in path&quot;
        exit 2
    fi
fi

readonly MY_PRINT_DEFAULTS

wsrep_defaults=&quot;$WSREP_SST_OPT_DEFAULTS&quot;
wsrep_defaults=&quot;$wsrep_defaults${WSREP_SST_OPT_EXTRA_DEFAULTS:+ }$WSREP_SST_OPT_EXTRA_DEFAULTS&quot;
wsrep_defaults=&quot;$wsrep_defaults${WSREP_SST_OPT_SUFFIX_DEFAULT:+ }$WSREP_SST_OPT_SUFFIX_DEFAULT&quot;

readonly WSREP_SST_OPT_CONF=&quot;${wsrep_defaults:+ }$wsrep_defaults&quot;

wsrep_defaults=&quot;$WSREP_SST_OPT_DEFAULT&quot;
wsrep_defaults=&quot;$wsrep_defaults${WSREP_SST_OPT_EXTRA_DEFAULT:+ }$WSREP_SST_OPT_EXTRA_DEFAULT&quot;
wsrep_defaults=&quot;$wsrep_defaults${WSREP_SST_OPT_SUFFIX_DEFAULT:+ }$WSREP_SST_OPT_SUFFIX_DEFAULT&quot;

readonly WSREP_SST_OPT_CONF_UNQUOTED=&quot;${wsrep_defaults:+ }$wsrep_defaults&quot;

#
# User can specify mariabackup specific settings that will be used during sst
# process like encryption, etc. Parse such configuration option.
#
# 1st parameter: group (config file section like sst) or
#                my_print_defaults argument (like --mysqld)
# 2nd parameter: var : name of the variable in the section, e.g. server-id
# 3rd parameter: default value for the parameter
#
parse_cnf()
{
    local groups=&quot;$1&quot;
    local var=&quot;$2&quot;
    local reval=&quot;&quot;

    # normalize the variable names specified in the .cnf file
    # (user can use '_' or '-', for example, log-bin or log_bin),
    # then search for the last instance of the desired variable
    # and finally get the value of that variable (if the variable
    # was specified several times - we use only its last instance):

    local pattern='BEGIN {OFS=FS=&quot;=&quot;} {sub(/^--loose/,&quot;-&quot;,$0); gsub(/_/,&quot;-&quot;,$1); if ($1==&quot;--'&quot;$var&quot;'&quot;) lastval=substr($0,length($1)+2)} END {print lastval}'

    while [ -n &quot;$groups&quot; ]; do
        # Remove the largest suffix starting with the '|' character:
        local group=&quot;${groups%%\|*}&quot;
        # Remove the remainder (the group name) from the rest
        # of the groups list (as if it were a prefix):
        if [ &quot;$group&quot; != &quot;$groups&quot; ]; then
            groups=&quot;${groups#*\|}&quot;
        else
            groups=&quot;&quot;
        fi
        # If the group name is the same as the &quot;mysqld&quot; without &quot;--&quot; prefix,
        # then try to use it together with the group suffix:
        if [ &quot;$group&quot; = 'mysqld' -a -n &quot;$WSREP_SST_OPT_SUFFIX_VALUE&quot; ]; then
            reval=$(&quot;$MY_PRINT_DEFAULTS&quot; \
                    ${WSREP_SST_OPT_DEFAULT:+&quot;$WSREP_SST_OPT_DEFAULT&quot;} \
                    ${WSREP_SST_OPT_EXTRA_DEFAULT:+&quot;$WSREP_SST_OPT_EXTRA_DEFAULT&quot;} \
                    ${WSREP_SST_OPT_SUFFIX_DEFAULT:+&quot;$WSREP_SST_OPT_SUFFIX_DEFAULT&quot;} \
                    &quot;mysqld$WSREP_SST_OPT_SUFFIX_VALUE&quot; | awk &quot;$pattern&quot;)
            if [ -n &quot;$reval&quot; ]; then
                break
            fi
        fi
        # Let's try to use the group name as it is:
        reval=$(&quot;$MY_PRINT_DEFAULTS&quot; \
                ${WSREP_SST_OPT_DEFAULT:+&quot;$WSREP_SST_OPT_DEFAULT&quot;} \
                ${WSREP_SST_OPT_EXTRA_DEFAULT:+&quot;$WSREP_SST_OPT_EXTRA_DEFAULT&quot;} \
                ${WSREP_SST_OPT_SUFFIX_DEFAULT:+&quot;$WSREP_SST_OPT_SUFFIX_DEFAULT&quot;} \
                &quot;$group&quot; | awk &quot;$pattern&quot;)
        if [ -n &quot;$reval&quot; ]; then
            break
        fi
    done

    # Use default if we haven't found a value:
    [ -z &quot;$reval&quot; ] &amp;&amp; reval=&quot;${3:-}&quot;

    # Truncate spaces:
    [ -n &quot;$reval&quot; ] &amp;&amp; reval=$(trim_string &quot;$reval&quot;)

    echo &quot;$reval&quot;
}

#
# This function simply checks for the presence of the parameter
# in the config file, but does not return its value. It returns &quot;1&quot;
# (true) even if the parameter is present in the configuration file
# without a value:
#
in_config()
{
    local groups=&quot;$1&quot;
    local var=&quot;$2&quot;
    local found=0

    # normalize the variable names specified in the .cnf file
    # (user can use '_' or '-', for example, log-bin or log_bin),
    # then search for the last instance(s) of the desired variable:

    local pattern='BEGIN {OFS=FS=&quot;=&quot;; found=0} {sub(/^--loose/,&quot;-&quot;,$0); gsub(/_/,&quot;-&quot;,$1); if ($1==&quot;--'&quot;$var&quot;'&quot;) found=1} END {print found}'

    while [ -n &quot;$groups&quot; ]; do
        # Remove the largest suffix starting with the '|' character:
        local group=&quot;${groups%%\|*}&quot;
        # Remove the remainder (the group name) from the rest
        # of the groups list (as if it were a prefix):
        if [ &quot;$group&quot; != &quot;$groups&quot; ]; then
            groups=&quot;${groups#*\|}&quot;
        else
            groups=&quot;&quot;
        fi
        # If the group name is the same as the &quot;mysqld&quot; without &quot;--&quot; prefix,
        # then try to use it together with the group suffix:
        if [ &quot;$group&quot; = 'mysqld' -a -n &quot;$WSREP_SST_OPT_SUFFIX_VALUE&quot; ]; then
            found=$(&quot;$MY_PRINT_DEFAULTS&quot; \
                    ${WSREP_SST_OPT_DEFAULT:+&quot;$WSREP_SST_OPT_DEFAULT&quot;} \
                    ${WSREP_SST_OPT_EXTRA_DEFAULT:+&quot;$WSREP_SST_OPT_EXTRA_DEFAULT&quot;} \
                    ${WSREP_SST_OPT_SUFFIX_DEFAULT:+&quot;$WSREP_SST_OPT_SUFFIX_DEFAULT&quot;} \
                    &quot;mysqld$WSREP_SST_OPT_SUFFIX_VALUE&quot; | awk &quot;$pattern&quot;)
            if [ $found -ne 0 ]; then
                break
            fi
        fi
        # Let's try to use the group name as it is:
        found=$($MY_PRINT_DEFAULTS \
                ${WSREP_SST_OPT_DEFAULT:+&quot;$WSREP_SST_OPT_DEFAULT&quot;} \
                ${WSREP_SST_OPT_EXTRA_DEFAULT:+&quot;$WSREP_SST_OPT_EXTRA_DEFAULT&quot;} \
                ${WSREP_SST_OPT_SUFFIX_DEFAULT:+&quot;$WSREP_SST_OPT_SUFFIX_DEFAULT&quot;} \
                &quot;$group&quot; | awk &quot;$pattern&quot;)
        if [ $found -ne 0 ]; then
            break
        fi
    done

    echo $found
}

# Get rid of incorrect values resulting from substitution
# in programs external to the script:
if [ &quot;$WSREP_SST_OPT_USER&quot; = '(null)' ]; then
    WSREP_SST_OPT_USER=&quot;&quot;
fi
if [ &quot;$WSREP_SST_OPT_PSWD&quot; = '(null)' ]; then
    WSREP_SST_OPT_PSWD=&quot;&quot;
fi
if [ &quot;$WSREP_SST_OPT_AUTH&quot; = '(null)' ]; then
    WSREP_SST_OPT_AUTH=&quot;&quot;
fi

# Let's read the value of the authentication string from the
# configuration file so that it does not go to the command line
# and does not appear in the ps output:
if [ -z &quot;$WSREP_SST_OPT_AUTH&quot; ]; then
    WSREP_SST_OPT_AUTH=$(parse_cnf 'sst' 'wsrep-sst-auth')
fi

# Splitting WSREP_SST_OPT_AUTH as &quot;user:password&quot; pair:
if [ -n &quot;$WSREP_SST_OPT_AUTH&quot; ]; then
    # Extract username as shortest prefix up to first ':' character:
    WSREP_SST_OPT_AUTH_USER=&quot;${WSREP_SST_OPT_AUTH%%:*}&quot;
    if [ -z &quot;$WSREP_SST_OPT_USER&quot; ]; then
        # if the username is not in the command line arguments,
        # set the username and password using WSREP_SST_OPT_AUTH
        # from the environment:
        WSREP_SST_OPT_USER=&quot;$WSREP_SST_OPT_AUTH_USER&quot;
        WSREP_SST_OPT_PSWD=&quot;${WSREP_SST_OPT_AUTH#*:}&quot;
    elif [ &quot;$WSREP_SST_OPT_USER&quot; = &quot;$WSREP_SST_OPT_AUTH_USER&quot; ]; then
        # If the username in the command line arguments and in
        # the environment variable are the same, set the password
        # if it was not specified in the command line:
        if [ -z &quot;$WSREP_SST_OPT_PSWD&quot; ]; then
            WSREP_SST_OPT_PSWD=&quot;${WSREP_SST_OPT_AUTH#*:}&quot;
        fi
    else
        # The username is passed through the command line and does
        # not match the username in the environment variable - ignore
        # the environment and rebuild the authentication parameters:
        WSREP_SST_OPT_AUTH=&quot;$WSREP_SST_OPT_USER:$WSREP_SST_OPT_PSWD&quot;
    fi
fi

WSREP_SST_OPT_REMOTE_AUTH=&quot;${WSREP_SST_OPT_REMOTE_AUTH:-}&quot;
WSREP_SST_OPT_REMOTE_USER=
WSREP_SST_OPT_REMOTE_PSWD=
if [ -n &quot;$WSREP_SST_OPT_REMOTE_AUTH&quot; ]; then
    # Split auth string at the last ':'
    WSREP_SST_OPT_REMOTE_USER=&quot;${WSREP_SST_OPT_REMOTE_AUTH%%:*}&quot;
    WSREP_SST_OPT_REMOTE_PSWD=&quot;${WSREP_SST_OPT_REMOTE_AUTH#*:}&quot;
fi

readonly WSREP_SST_OPT_USER
readonly WSREP_SST_OPT_PSWD
readonly WSREP_SST_OPT_AUTH
readonly WSREP_SST_OPT_REMOTE_USER
readonly WSREP_SST_OPT_REMOTE_PSWD
readonly WSREP_SST_OPT_REMOTE_AUTH

if [ -n &quot;$WSREP_SST_OPT_DATA&quot; ]; then
    SST_PROGRESS_FILE=&quot;$WSREP_SST_OPT_DATA/sst_in_progress&quot;
else
    SST_PROGRESS_FILE=&quot;&quot;
fi

wsrep_cleanup_progress_file()
{
    if [ -n &quot;$SST_PROGRESS_FILE&quot; -a -f &quot;$SST_PROGRESS_FILE&quot; ]; then
        rm -f &quot;$SST_PROGRESS_FILE&quot; 2&gt;/dev/null || :
    fi
}

wsrep_check_program()
{
    local prog=&quot;$1&quot;
    local cmd=$(commandex &quot;$prog&quot;)
    if [ -z &quot;$cmd&quot; ]; then
        wsrep_log_error &quot;'$prog' not found in path&quot;
        return 2 # no such file or directory
    fi
}

wsrep_check_programs()
{
    local ret=0
    while [ $# -gt 0 ]; do
        wsrep_check_program &quot;$1&quot; || ret=$?
        shift
    done
    return $ret
}

wsrep_check_datadir()
{
    if [ -z &quot;$WSREP_SST_OPT_DATA&quot; ]; then
        wsrep_log_error \
            &quot;The '--datadir' parameter must be passed to the SST script&quot;
        exit 2
    fi
}

get_openssl()
{
    # If the OPENSSL_BINARY variable is already defined, just return:
    if [ -n &quot;${OPENSSL_BINARY+x}&quot; ]; then
        return
    fi
    # Let's look for openssl:
    OPENSSL_BINARY=$(commandex 'openssl')
    if [ -z &quot;$OPENSSL_BINARY&quot; ]; then
        OPENSSL_BINARY='/usr/bin/openssl'
        if [ ! -x &quot;$OPENSSL_BINARY&quot; ]; then
            OPENSSL_BINARY=&quot;&quot;
        fi
    fi
    readonly OPENSSL_BINARY
}

#
# Generate a string equivalent to 16 random bytes
#
wsrep_gen_secret()
{
    get_openssl
    if [ -n &quot;$OPENSSL_BINARY&quot; ]; then
        &quot;$OPENSSL_BINARY&quot; rand -hex 16
    elif [ -n &quot;$BASH_VERSION&quot; ]; then
        printf '%04x%04x%04x%04x%04x%04x%04x%04x' \
               $RANDOM $RANDOM $RANDOM $RANDOM \
               $RANDOM $RANDOM $RANDOM $RANDOM
    elif [ $with_printf -ne 0 -a -n &quot;$(commandex cksum)&quot; ]; then
        printf '%08x%08x%08x%08x' \
            $(head -8 /dev/urandom | cksum | cut -d ' ' -f1) \
            $(head -8 /dev/urandom | cksum | cut -d ' ' -f1) \
            $(head -8 /dev/urandom | cksum | cut -d ' ' -f1) \
            $(head -8 /dev/urandom | cksum | cut -d ' ' -f1)
    else
        wsrep_log_error &quot;Unable to generate 16-byte secret&quot;
        exit 22
    fi
}

#
# Checking if the address passed to us is local.
# If the second parameter is nonzero, then this function
# does not check for matches with local domain names:
#
is_local_ip()
{
    # Rapid recognition of the most common cases:
    [ &quot;$1&quot; = '127.0.0.1' -o \
      &quot;$1&quot; = '127.0.0.2' -o \
      &quot;$1&quot; = 'localhost' -o \
      &quot;$1&quot; = '::1' ] &amp;&amp; return 0
    # If the address starts with &quot;127.&quot; this is probably a local
    # address, but we need to clarify what follows this prefix:
    if [ &quot;${1#127.}&quot; != &quot;$1&quot; ]; then
        # All 127.0.0.0/8 addresses are local:
        if echo &quot;$1&quot; | grep -q -E '^127\.[0-9]+\.[0-9]+\.[0-9]+$'; then
            return 0
        fi
    fi
    # If the second parameter is nonzero, then we will skip
    # the domain name check:
    if [ &quot;${2:-0}&quot; -eq 0 ]; then
       # We consider all the names of a given host to be local addresses:
       [ &quot;$1&quot; = &quot;$(hostname -s 2&gt;/dev/null)&quot; -o \
         &quot;$1&quot; = &quot;$(hostname -f 2&gt;/dev/null)&quot; -o \
         &quot;$1&quot; = &quot;$(hostname -d 2&gt;/dev/null)&quot; ] &amp;&amp; return 0
    fi
    # If the address contains anything other than digits
    # and separators, it is not a local address:
    [ &quot;${1#*[!0-9.]}&quot; != &quot;$1&quot; ] &amp;&amp; \
    [ &quot;${1#*[!0-9A-Fa-f:\[\]]}&quot; != &quot;$1&quot; ] &amp;&amp; return 1
    # Now let's check if the given address is assigned to
    # one of the network cards:
    local ip_util=$(commandex 'ip')
    if [ -n &quot;$ip_util&quot; ]; then
        # ip address show ouput format is &quot; inet[6] &lt;address&gt;/&lt;mask&gt;&quot;:
        &quot;$ip_util&quot; address show \
            | grep -o -E '^[[:space:]]*inet.?[[:space:]]+[^[:space:]]+/' \
            | grep -qw -F -- &quot;$1/&quot; &amp;&amp; return 0
    else
        local ifconfig_util=$(commandex 'ifconfig')
        if [ -n &quot;$ifconfig_util&quot; ]; then
            # ifconfig output format is &quot; inet[6] &lt;address&gt; ...&quot;:
            &quot;$ifconfig_util&quot; \
                | grep -o -E '^[[:space:]]*inet.?[[:space:]]+[^[:space:]]+' \
                | grep -qw -F -- &quot;$1&quot; &amp;&amp; return 0
        fi
    fi
    return 1
}

check_sockets_utils()
{
    # The presence of any of these utilities is enough for us:
    lsof_available=0
    sockstat_available=0
    ss_available=0

    socket_utility=&quot;$(commandex ss)&quot;
    if [ -n &quot;$socket_utility&quot; ]; then
        socket_uname='ss'
        ss_available=1
        ss_opts='-nlp'
        # Let's check that ss has an option to skip headers:
        if $socket_utility -h 2&gt;&amp;1 | grep -qw -F -- '-H'; then
            ss_available=2
            ss_opts=&quot;${ss_opts}H&quot;
        fi
    else
        socket_utility=&quot;$(commandex sockstat)&quot;
        if [ -n &quot;$socket_utility&quot; ]; then
            socket_uname='sockstat'
            sockstat_available=1
            sockstat_opts='-p'
            if [ &quot;$OS&quot; = 'FreeBSD' ]; then
                # sockstat in FreeBSD is different from other systems,
                # let's denote it with a different value:
                sockstat_available=2
                sockstat_opts='-46lq -P tcp -p'
            fi
        else
            socket_utility=&quot;$(commandex lsof)&quot;
            if [ -n &quot;$socket_utility&quot; ]; then
                socket_uname='lsof'
                lsof_available=1
                lsof_opts='-Pnl'
                # Let's check that lsof has an option to bypass blocking:
                if $socket_utility -h 2&gt;&amp;1 | grep -qw -F -- '-b'; then
                    lsof_available=2
                    lsof_opts=&quot;$lsof_opts -b -w&quot;
                else
                    lsof_opts=&quot;$lsof_opts -S 10&quot;
                fi
            else
                wsrep_log_error &quot;Neither lsof, nor sockstat, nor ss tool&quot; \
                                &quot;were found in the path. Make sure you have&quot; \
                                &quot;at least one of them installed.&quot;
                exit 2 # ENOENT
            fi
        fi
    fi
    wsrep_log_info &quot;'$socket_uname' is selected as a socket&quot; \
                   &quot;information utility.&quot;
}

#
# Check if the port is in the &quot;listen&quot; state.
# The first parameter is the PID of the process that should
# listen on the port - if it is not known, you can specify
# an empty string or zero.
# The second parameter is the port number.
# The third parameter is a list of the names of utilities
# (via &quot;|&quot;) that can listen on this port during the state
# transfer.
#
check_port()
{
    local pid=&quot;${1:-0}&quot;
    local port=&quot;$2&quot;
    local utils=&quot;$3&quot;

    [ $pid -le 0 ] &amp;&amp; pid='[0-9]+'

    local rc=2 # ENOENT

    if [ $ss_available -ne 0 ]; then
        $socket_utility $ss_opts -t &quot;( sport = :$port )&quot; 2&gt;/dev/null | \
            grep -q -E &quot;[[:space:]]users:[[:space:]]?\\(.*\\(\&quot;($utils)[^[:space:]]*\&quot;[^)]*,pid=$pid(,[^)]*)?\\)&quot; &amp;&amp; rc=0
    elif [ $sockstat_available -ne 0 ]; then
        if [ $sockstat_available -gt 1 ]; then
            # The sockstat command on FreeBSD does not return
            # the connection state without special option, but
            # it supports filtering by connection state:
            local out
            out=$($socket_utility $sockstat_opts &quot;$port&quot; 2&gt;/dev/null) || rc=16 # EBUSY
            # On FreeBSD, the sockstat utility may exit without
            # any output due to locking issues in certain versions;
            # let's return a special exit code in such cases:
            if [ $rc -eq 16 -o -z &quot;$out&quot; ]; then
                return 16 # EBUSY
            fi
            echo &quot;$out&quot; | \
                grep -q -E &quot;^[^[:space:]]+[[:space:]]+($utils)[^[:space:]]*[[:space:]]+$pid([[:space:]]|\$)&quot; &amp;&amp; rc=0
        else
            $socket_utility $sockstat_opts &quot;$port&quot; 2&gt;/dev/null | \
                grep -q -E &quot;^[^[:space:]]+[[:space:]]+($utils)[^[:space:]]*[[:space:]]+$pid([[:space:]].+)?[[:space:]]LISTEN([[:space:]]|\$)&quot; &amp;&amp; rc=0
        fi
    elif [ $lsof_available -ne 0 ]; then
        $socket_utility $lsof_opts -i &quot;:$port&quot; 2&gt;/dev/null | \
            grep -q -E &quot;^($utils)[^[:space:]]*[[:space:]]+$pid([[:space:]].+)?[[:space:]]\\(LISTEN\\)([[:space:]]|\$)&quot; &amp;&amp; rc=0
    else
        wsrep_log_error &quot;Unknown sockets utility&quot;
        exit 2 # ENOENT
    fi

    return $rc
}

#
# If the ssl_dhparams variable is already set, uses that as a source
# of dh parameters for OpenSSL. Otherwise, looks for dhparams.pem in
# the datadir, and creates it there if it can't find the file.
#
check_for_dhparams()
{
    ssl_dhparams=&quot;$DATA/dhparams.pem&quot;
    get_openssl
    if [ -n &quot;$OPENSSL_BINARY&quot; ]; then
        wsrep_log_info \
            &quot;Could not find dhparams file, creating $ssl_dhparams&quot;
        local bug=0
        local errmsg
        errmsg=$(&quot;$OPENSSL_BINARY&quot; \
                 dhparam -out &quot;$ssl_dhparams&quot; -dsaparam 2048 2&gt;&amp;1) || bug=1
        if [ $bug -ne 0 ]; then
            wsrep_log_info &quot;run: \&quot;$OPENSSL_BINARY\&quot; dhparam&quot;\
                           &quot;-out \&quot;$ssl_dhparams\&quot; -dsaparam 2048&quot;
            wsrep_log_info &quot;output: $errmsg&quot;
            wsrep_log_error &quot;******** ERROR *****************************************&quot;
            wsrep_log_error &quot;* Could not create the dhparams.pem file with OpenSSL. *&quot;
            wsrep_log_error &quot;********************************************************&quot;
            ssl_dhparams=&quot;&quot;
        fi
    else
        # Rollback: if openssl is not installed, then use
        # the default parameters:
        ssl_dhparams=&quot;&quot;
    fi
}

#
# Verifies that the CA file verifies the certificate.
# Doing this here lets us generate better error messages.
#
# 1st param: path to the CA file.
# 2nd param: path to the certificate.
#
verify_ca_matches_cert()
{
    local cert=&quot;$1&quot;
    local ca=&quot;$2&quot;
    local cap=&quot;$3&quot;

    local readable=1; [ ! -r &quot;$cert&quot; ] &amp;&amp; readable=0
         [ -n &quot;$ca&quot;  -a ! -r &quot;$ca&quot;   ] &amp;&amp; readable=0
         [ -n &quot;$cap&quot; -a ! -r &quot;$cap&quot;  ] &amp;&amp; readable=0

    if [ $readable -eq 0 ]; then
        wsrep_log_error \
            &quot;Both PEM file and CA file (or path) must be readable&quot;
        exit 22
    fi

    # If the openssl utility is not installed, then
    # we will not do this certificate check:
    get_openssl
    if [ -z &quot;$OPENSSL_BINARY&quot; ]; then
        wsrep_log_info &quot;openssl utility not found&quot;
        return
    fi

    local not_match=0
    local errmsg
    errmsg=$(&quot;$OPENSSL_BINARY&quot; verify -verbose \
                               ${ca:+ -CAfile} ${ca:+ &quot;$ca&quot;} \
                               ${cap:+ -CApath} ${cap:+ &quot;$cap&quot;} \
                               &quot;$cert&quot; 2&gt;&amp;1) || not_match=1

    if [ $not_match -eq 1 ]; then
        wsrep_log_info &quot;run: \&quot;$OPENSSL_BINARY\&quot; verify -verbose${ca:+ -CAfile \&quot;$ca\&quot;}${cap:+ -CApath \&quot;$cap\&quot;} \&quot;$cert\&quot;&quot;
        wsrep_log_info &quot;output: $errmsg&quot;
        wsrep_log_error &quot;******** FATAL ERROR ********************************************&quot;
        wsrep_log_error &quot;* The certifcate and CA (certificate authority) do not match.   *&quot;
        wsrep_log_error &quot;* It does not appear that the certificate was issued by the CA. *&quot;
        wsrep_log_error &quot;* Please check your certificate and CA files.                   *&quot;
        wsrep_log_error &quot;*****************************************************************&quot;
        exit 22
    fi
}

#
# Verifies that the certificate matches the private key.
# Doing this will save us having to wait for a timeout that would
# otherwise occur.
#
# 1st param: path to the certificate.
# 2nd param: path to the private key.
#
verify_cert_matches_key()
{
    local cert=&quot;$1&quot;
    local key=&quot;$2&quot;

    if [ ! -r &quot;$key&quot; -o ! -r &quot;$cert&quot; ]; then
        wsrep_log_error &quot;Both the certificate file and the key file&quot; \
                        &quot;must be readable&quot;
        exit 22
    fi

    # If the openssl utility is not installed, then
    # we will not do this certificate check:
    get_openssl
    if [ -z &quot;$OPENSSL_BINARY&quot; ]; then
        wsrep_log_info &quot;openssl utility not found&quot;
        return
    fi

    # Generate the public key from the cert and the key.
    # They should match (otherwise we can't create an SSL connection).
    local pk1=$(&quot;$OPENSSL_BINARY&quot; x509 -in &quot;$cert&quot; -pubkey -noout 2&gt;/dev/null || :)
    local pk2=$(&quot;$OPENSSL_BINARY&quot; pkey -in &quot;$key&quot; -pubout 2&gt;/dev/null || :)
    if [ &quot;$pk1&quot; != &quot;$pk2&quot; ]; then
        wsrep_log_error &quot;******************* FATAL ERROR *****************&quot;
        wsrep_log_error &quot;* The certificate and private key do not match. *&quot;
        wsrep_log_error &quot;* Please check your certificate and key files.  *&quot;
        wsrep_log_error &quot;*************************************************&quot;
        exit 22
    fi
}

#
# Compares two version strings.
# The first parameter is the version to be checked;
# The second parameter is the minimum version required;
# Returns 1 (failure) if $1 &gt;= $2, 0 (success) otherwise.
#
check_for_version()
{
    local y1=&quot;${1#*.}&quot;
    [ &quot;$y1&quot; = &quot;$1&quot; ] &amp;&amp; y1=&quot;&quot;
    local z1=&quot;${y1#*.}&quot;
    [ &quot;$z1&quot; = &quot;$y1&quot; ] &amp;&amp; z1=&quot;&quot;
    local w1=&quot;${z1#*.}&quot;
    [ &quot;$w1&quot; = &quot;$z1&quot; ] &amp;&amp; w1=&quot;&quot;
    local x1=&quot;${1%%.*}&quot;
    y1=&quot;${y1%%.*}&quot;
    z1=&quot;${z1%%.*}&quot;
    w1=&quot;${w1%%.*}&quot;
    [ -z &quot;$y1&quot; ] &amp;&amp; y1=0
    [ -z &quot;$z1&quot; ] &amp;&amp; z1=0
    [ -z &quot;$w1&quot; ] &amp;&amp; w1=0
    local y2=&quot;${2#*.}&quot;
    [ &quot;$y2&quot; = &quot;$2&quot; ] &amp;&amp; y2=&quot;&quot;
    local z2=&quot;${y2#*.}&quot;
    [ &quot;$z2&quot; = &quot;$y2&quot; ] &amp;&amp; z2=&quot;&quot;
    local w2=&quot;${z2#*.}&quot;
    [ &quot;$w2&quot; = &quot;$z2&quot; ] &amp;&amp; w2=&quot;&quot;
    local x2=&quot;${2%%.*}&quot;
    y2=&quot;${y2%%.*}&quot;
    z2=&quot;${z2%%.*}&quot;
    w2=&quot;${w2%%.*}&quot;
    [ -z &quot;$y2&quot; ] &amp;&amp; y2=0
    [ -z &quot;$z2&quot; ] &amp;&amp; z2=0
    [ -z &quot;$w2&quot; ] &amp;&amp; w2=0
    [ $x1 -lt $x2 ] &amp;&amp; return 1
    [ $x1 -gt $x2 ] &amp;&amp; return 0
    [ $y1 -lt $y2 ] &amp;&amp; return 1
    [ $y1 -gt $y2 ] &amp;&amp; return 0
    [ $z1 -lt $z2 ] &amp;&amp; return 1
    [ $z1 -gt $z2 ] &amp;&amp; return 0
    [ $w1 -lt $w2 ] &amp;&amp; return 1
    return 0
}

#
# Check whether process is still running.
# The first parameter contains the name of the PID file.
# The second parameter is the flag of the need to delete
# the PID file.
# If the second parameter is not zero and not empty,
# then if the process terminates, the corresponding
# PID file will be deleted.
# This function also sets the CHECK_PID variable to zero
# if the process has already exited, or writes the PID
# of the process there if it is still running.
#
check_pid()
{
    local pid_file=&quot;$1&quot;
    if [ -r &quot;$pid_file&quot; ]; then
        local pid=$(cat &quot;$pid_file&quot; 2&gt;/dev/null || :)
        if [ -n &quot;$pid&quot; ]; then
            if [ $pid -gt 0 ]; then
                if ps -p $pid &gt;/dev/null 2&gt;&amp;1; then
                    CHECK_PID=$pid
                    return 0
                fi
            fi
        fi
        local remove=${2:-0}
        if [ $remove -ne 0 ]; then
            rm -f &quot;$pid_file&quot; || :
        fi
    fi
    local config=&quot;${3:-}&quot;
    if [ -n &quot;$config&quot; -a -f &quot;$config&quot; ]; then
        rm -f &quot;$config&quot; || :
    fi
    CHECK_PID=0
    return 1
}

#
# Checking that the process with the specified PID is still
# running and killing it in this case by sending SIGTERM
# (using the &quot;kill&quot; operation).
# The first parameter contains PID of the process.
# The second and third parameters (both optional) are the names
# of the PID and the configuration files, which should be removed
# after the process ends.
# If the first parameter (PID of the process) is zero, then
# the function immediately deletes the PID and the configuration
# files (if specified), without any additional checks.
#
cleanup_pid()
{
    local pid=$1
    local pid_file=&quot;${2:-}&quot;
    local config=&quot;${3:-}&quot;

    if [ $pid -gt 0 ]; then
        if ps -p $pid &gt;/dev/null 2&gt;&amp;1; then
            if kill $pid &gt;/dev/null 2&gt;&amp;1; then
                sleep 0.5
                local round=0
                local force=0
                while ps -p $pid &gt;/dev/null 2&gt;&amp;1; do
                    sleep 1
                    round=$(( round+1 ))
                    if [ $round -eq 16 ]; then
                        if [ $force -eq 0 ]; then
                            round=8
                            force=1
                            kill -9 $pid &gt;/dev/null 2&gt;&amp;1 || :
                            sleep 0.5
                        else
                            return 1
                        fi
                    fi
                done
            elif ps -p $pid &gt;/dev/null 2&gt;&amp;1; then
                wsrep_log_warning &quot;Unable to kill PID=$pid ($pid_file)&quot;
                return 1
            fi
        fi
    fi

    [ -n &quot;$pid_file&quot; -a -f &quot;$pid_file&quot; ] &amp;&amp; rm -f &quot;$pid_file&quot; || :
    [ -n &quot;$config&quot; -a -f &quot;$config&quot; ] &amp;&amp; rm -f &quot;$config&quot; || :

    return 0
}

nproc=&quot;&quot;

get_proc()
{
    if [ -z &quot;$nproc&quot; ]; then
        set +e
        if [ &quot;$OS&quot; = 'Linux' ]; then
            nproc=$(grep -cw -E '^processor' /proc/cpuinfo 2&gt;/dev/null || :)
        elif [ &quot;$OS&quot; = 'Darwin' -o &quot;$OS&quot; = 'FreeBSD' ]; then
            nproc=$(sysctl -n hw.ncpu)
        fi
        set -e
        if [ -z &quot;$nproc&quot; ] || [ $nproc -eq 0 ]; then
            nproc=1
        fi
    fi
}

check_server_ssl_config()
{
    # backward-compatible behavior:
    tcert=$(parse_cnf 'sst' 'tca')
    tcap=$(parse_cnf 'sst' 'tcapath')
    tpem=$(parse_cnf 'sst' 'tcert')
    tkey=$(parse_cnf 'sst' 'tkey')
    # reading new ssl configuration options:
    local tcert2=$(parse_cnf &quot;$encgroups&quot; 'ssl-ca')
    local tcap2=$(parse_cnf &quot;$encgroups&quot; 'ssl-capath')
    local tpem2=$(parse_cnf &quot;$encgroups&quot; 'ssl-cert')
    local tkey2=$(parse_cnf &quot;$encgroups&quot; 'ssl-key')
    # if there are no old options, then we take new ones:
    if [ -z &quot;$tcert&quot; -a -z &quot;$tcap&quot; -a -z &quot;$tpem&quot; -a -z &quot;$tkey&quot; ]; then
        tcert=&quot;$tcert2&quot;
        tcap=&quot;$tcap2&quot;
        tpem=&quot;$tpem2&quot;
        tkey=&quot;$tkey2&quot;
    # checking for presence of the new-style SSL configuration:
    elif [ -n &quot;$tcert2&quot; -o -n &quot;$tcap2&quot; -o -n &quot;$tpem2&quot; -o -n &quot;$tkey2&quot; ]; then
        if [ &quot;$tcert&quot; != &quot;$tcert2&quot; -o \
             &quot;$tcap&quot;  != &quot;$tcap2&quot;  -o \
             &quot;$tpem&quot;  != &quot;$tpem2&quot;  -o \
             &quot;$tkey&quot;  != &quot;$tkey2&quot; ]
        then
            wsrep_log_info \
               &quot;new ssl configuration options (ssl-ca[path], ssl-cert&quot; \
               &quot;and ssl-key) are ignored by SST due to presence&quot; \
               &quot;of the tca[path], tcert and/or tkey in the [sst] section&quot;
        fi
    fi
    if [ -n &quot;$tcert&quot; ]; then
        if [ &quot;${tcert%/}&quot; != &quot;$tcert&quot; -o -d &quot;$tcert&quot; ]; then
            tcap=&quot;$tcert&quot;
            tcert=&quot;&quot;
        fi
    fi
}

# Get Common Name (CN) from the certificate:
openssl_getCN()
{
    get_openssl
    if [ -z &quot;$OPENSSL_BINARY&quot; ]; then
        wsrep_log_error \
            'openssl not found but it is required for authentication'
        exit 42
    fi

    local bug=0
    local CN=$(&quot;$OPENSSL_BINARY&quot; x509 -noout -subject -in &quot;$1&quot; 2&gt;&amp;1) || bug=1

    if [ $bug -ne 0 ]; then
        wsrep_log_info &quot;run: \&quot;$OPENSSL_BINARY\&quot; x509 -noout -subject -in \&quot;$1\&quot;&quot;
        wsrep_log_info &quot;output: $CN&quot;
        wsrep_log_error &quot;******** FATAL ERROR **********************************************&quot;
        wsrep_log_error &quot;* Unable to parse the certificate file to obtain the common name. *&quot;
        wsrep_log_error &quot;*******************************************************************&quot;
        exit 22
    fi

    CN=$(trim_string &quot;$CN&quot;)

    if [ -n &quot;$CN&quot; ]; then
        # If the string begins with the &quot;subject&quot; prefix
        # then we need to remove it:
        local saved=&quot;$CN&quot;
        local remain=&quot;${CN#subject}&quot;
        if [ &quot;$remain&quot; != &quot;$saved&quot; ]; then
            remain=$(trim_left &quot;$remain&quot;)
            # Now let's check for the presence of &quot;=&quot; character
            # after the &quot;subject&quot;:
            saved=&quot;$remain&quot;
            remain=&quot;${remain#=}&quot;
            if [ &quot;$remain&quot; != &quot;$saved&quot; ]; then
                remain=$(trim_left &quot;$remain&quot;)
            else
                remain=&quot;&quot;
                bug=1
            fi
        fi
        while [ -n &quot;$remain&quot; ]; do
            local value=&quot;&quot;
            # Let's extract the option name - all characters
            # up to the first '=' or ',' character (if present):
            local option=&quot;${remain%%[=,]*}&quot;
            if [ &quot;$option&quot; != &quot;$remain&quot; ]; then
                option=$(trim_right &quot;$option&quot;)
                # These variables will be needed to determine
                # which separator comes first:
                local x=&quot;${remain#*=}&quot;
                local y=&quot;${remain#*,}&quot;
                local z=${#remain}
                x=${#x}; [ $x -eq $z ] &amp;&amp; x=0
                y=${#y}; [ $y -eq $z ] &amp;&amp; y=0
                # The remaining string is everything that follows
                # the separator character:
                remain=$(trim_left &quot;${remain#*[=,]}&quot;)
                # Let's check what we are dealing with - an equal
                # sign or a comma?
                if [ $x -gt $y ]; then
                    # If the remainder begins with a double quote,
                    # then there is a string containing commas and
                    # we need to parse it:
                    saved=&quot;$remain&quot;
                    remain=&quot;${remain#\&quot;}&quot;
                    if [ &quot;$remain&quot; != &quot;$saved&quot; ]; then
                        while :; do
                            # We need to find the closing quote:
                            local prefix=&quot;$remain&quot;
                            remain=&quot;${remain#*\&quot;}&quot;
                            # Let's check if there is a closing quote?
                            if [ &quot;$remain&quot; = &quot;$prefix&quot; ]; then
                                bug=1
                                break
                            fi
                            # Everything up to the closing quote is
                            # the next part of the value:
                            value=&quot;$value${prefix%%\&quot;*}&quot;
                            # But if the last character of the value
                            # is a backslash, then it is a quoted quotation
                            # mark and we need to add it to the value:
                            if [ &quot;${value%\\}&quot; != &quot;$value&quot; ]; then
                                value=&quot;$value\&quot;&quot;
                            else
                                break
                            fi
                        done
                        [ $bug -ne 0 ] &amp;&amp; break
                        # Now we have to remove &quot;,&quot; if it is present
                        # in the string after the value:
                        saved=$(trim_left &quot;$remain&quot;)
                        remain=&quot;${saved#,}&quot;
                        if [ &quot;$remain&quot; != &quot;$saved&quot; ]; then
                            remain=$(trim_left &quot;$remain&quot;)
                        elif [ -n &quot;$remain&quot; ]; then
                            bug=1
                            break
                        fi
                    else
                        # We are dealing with a simple unquoted string value,
                        # therefore we need to take everything up to the end
                        # of the string, or up to the next comma character:
                        value=&quot;${remain%%,*}&quot;
                        if [ &quot;$value&quot; != &quot;$remain&quot; ]; then
                            remain=$(trim_left &quot;${remain#*,}&quot;)
                        else
                            remain=&quot;&quot;
                        fi
                        value=$(trim_right &quot;$value&quot;)
                    fi
                    if [ &quot;$option&quot; = 'CN' -a -n &quot;$value&quot; ]; then
                        echo &quot;$value&quot;
                        return
                    fi
                fi
            else
                remain=&quot;&quot;
            fi
        done
    fi

    if [ $bug -ne 0 ]; then
        wsrep_log_error &quot;******** FATAL ERROR **********************************************&quot;
        wsrep_log_error &quot;* Unable to parse the certificate options: '$CN'&quot;
        wsrep_log_error &quot;*******************************************************************&quot;
        exit 22
    fi

    echo ''
}

simple_cleanup()
{
    # Since this is invoked just after exit NNN
    local estatus=$?
    if [ $estatus -ne 0 ]; then
        wsrep_log_error &quot;Cleanup after exit with status: $estatus&quot;
    fi
    if [ -n &quot;$SST_PID&quot; ]; then
        [ &quot;$(pwd)&quot; != &quot;$OLD_PWD&quot; ] &amp;&amp; cd &quot;$OLD_PWD&quot;
        [ -f &quot;$SST_PID&quot; ] &amp;&amp; rm -f &quot;$SST_PID&quot; || :
    fi
    exit $estatus
}

create_data()
{
    OLD_PWD=&quot;$(pwd)&quot;

    if [ -n &quot;$DATA&quot; -a &quot;$DATA&quot; != '.' ]; then
        [ ! -d &quot;$DATA&quot; ] &amp;&amp; mkdir -p &quot;$DATA&quot;
        cd &quot;$DATA&quot;
    fi
    DATA_DIR=&quot;$(pwd)&quot;

    cd &quot;$OLD_PWD&quot;
}

create_dirs()
{
    local simplify=${1:-0}

    # if no command line argument and INNODB_DATA_HOME_DIR environment
    # variable is not set, try to get it from the my.cnf:
    if [ -z &quot;$INNODB_DATA_HOME_DIR&quot; ]; then
        INNODB_DATA_HOME_DIR=$(parse_cnf '--mysqld' 'innodb-data-home-dir')
        INNODB_DATA_HOME_DIR=$(trim_dir &quot;$INNODB_DATA_HOME_DIR&quot;)
    fi

    if [ -n &quot;$INNODB_DATA_HOME_DIR&quot; -a &quot;$INNODB_DATA_HOME_DIR&quot; != '.' -a \
         &quot;$INNODB_DATA_HOME_DIR&quot; != &quot;$DATA_DIR&quot; ]
    then
        # handle both relative and absolute paths:
        cd &quot;$DATA&quot;
        [ ! -d &quot;$INNODB_DATA_HOME_DIR&quot; ] &amp;&amp; mkdir -p &quot;$INNODB_DATA_HOME_DIR&quot;
        cd &quot;$INNODB_DATA_HOME_DIR&quot;
        ib_home_dir=&quot;$(pwd)&quot;
        cd &quot;$OLD_PWD&quot;
        [ $simplify -ne 0 -a &quot;$ib_home_dir&quot; = &quot;$DATA_DIR&quot; ] &amp;&amp; ib_home_dir=&quot;&quot;
    fi

    # if no command line argument and INNODB_LOG_GROUP_HOME is not set,
    # then try to get it from the my.cnf:
    if [ -z &quot;$INNODB_LOG_GROUP_HOME&quot; ]; then
        INNODB_LOG_GROUP_HOME=$(parse_cnf '--mysqld' 'innodb-log-group-home-dir')
        INNODB_LOG_GROUP_HOME=$(trim_dir &quot;$INNODB_LOG_GROUP_HOME&quot;)
    fi

    if [ -n &quot;$INNODB_LOG_GROUP_HOME&quot; -a &quot;$INNODB_LOG_GROUP_HOME&quot; != '.' -a \
         &quot;$INNODB_LOG_GROUP_HOME&quot; != &quot;$DATA_DIR&quot; ]
    then
        # handle both relative and absolute paths:
        cd &quot;$DATA&quot;
        [ ! -d &quot;$INNODB_LOG_GROUP_HOME&quot; ] &amp;&amp; mkdir -p &quot;$INNODB_LOG_GROUP_HOME&quot;
        cd &quot;$INNODB_LOG_GROUP_HOME&quot;
        ib_log_dir=&quot;$(pwd)&quot;
        cd &quot;$OLD_PWD&quot;
        [ $simplify -ne 0 -a &quot;$ib_log_dir&quot; = &quot;$DATA_DIR&quot; ] &amp;&amp; ib_log_dir=&quot;&quot;
    fi

    # if no command line argument and INNODB_UNDO_DIR is not set,
    # then try to get it from the my.cnf:
    if [ -z &quot;$INNODB_UNDO_DIR&quot; ]; then
        INNODB_UNDO_DIR=$(parse_cnf '--mysqld' 'innodb-undo-directory')
        INNODB_UNDO_DIR=$(trim_dir &quot;$INNODB_UNDO_DIR&quot;)
    fi

    if [ -n &quot;$INNODB_UNDO_DIR&quot; -a &quot;$INNODB_UNDO_DIR&quot; != '.' -a \
         &quot;$INNODB_UNDO_DIR&quot; != &quot;$DATA_DIR&quot; ]
    then
        # handle both relative and absolute paths:
        cd &quot;$DATA&quot;
        [ ! -d &quot;$INNODB_UNDO_DIR&quot; ] &amp;&amp; mkdir -p &quot;$INNODB_UNDO_DIR&quot;
        cd &quot;$INNODB_UNDO_DIR&quot;
        ib_undo_dir=&quot;$(pwd)&quot;
        cd &quot;$OLD_PWD&quot;
        [ $simplify -ne 0 -a &quot;$ib_undo_dir&quot; = &quot;$DATA_DIR&quot; ] &amp;&amp; ib_undo_dir=&quot;&quot;
    fi

    # if no command line argument then try to get it from the my.cnf:
    if [ -z &quot;$ARIA_LOG_DIR&quot; ]; then
        ARIA_LOG_DIR=$(parse_cnf '--mysqld' 'aria-log-dir-path')
        ARIA_LOG_DIR=$(trim_dir &quot;$ARIA_LOG_DIR&quot;)
    fi

    if [ -n &quot;$ARIA_LOG_DIR&quot; -a &quot;$ARIA_LOG_DIR&quot; != '.' -a \
         &quot;$ARIA_LOG_DIR&quot; != &quot;$DATA_DIR&quot; ]
    then
        # handle both relative and absolute paths:
        cd &quot;$DATA&quot;
        [ ! -d &quot;$ARIA_LOG_DIR&quot; ] &amp;&amp; mkdir -p &quot;$ARIA_LOG_DIR&quot;
        cd &quot;$ARIA_LOG_DIR&quot;
        ar_log_dir=&quot;$(pwd)&quot;
        cd &quot;$OLD_PWD&quot;
        [ $simplify -ne 0 -a &quot;$ar_log_dir&quot; = &quot;$DATA_DIR&quot; ] &amp;&amp; ar_log_dir=&quot;&quot;
    fi
}

wait_previous_sst()
{
    # give some time for previous SST to complete:
    check_round=0
    while check_pid &quot;$SST_PID&quot; 1; do
        wsrep_log_info &quot;Previous SST is not completed, waiting for it to exit&quot;
        check_round=$(( check_round+1 ))
        if [ $check_round -eq 30 ]; then
            wsrep_log_error &quot;previous SST script still running...&quot;
            exit 114 # EALREADY
        fi
        sleep 1
    done

    trap simple_cleanup EXIT
    echo $$ &gt; &quot;$SST_PID&quot;
}

DATA=&quot;$WSREP_SST_OPT_DATA&quot;

wsrep_check_datadir
create_data

SST_PID=&quot;$DATA/wsrep_sst.pid&quot;

wsrep_log_info &quot;$WSREP_METHOD $WSREP_TRANSFER_TYPE started on $WSREP_SST_OPT_ROLE&quot;
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