664 lines
22 KiB
Bash
664 lines
22 KiB
Bash
#!/bin/sh
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# To view the formatted manual page of this file, type:
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# POSTFIXSOURCE/mantools/srctoman - postfix-install | nroff -man
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#++
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# NAME
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# postfix-install 1
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# SUMMARY
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# Postfix installation procedure
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# SYNOPSIS
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# sh postfix-install [options] [name=value] ...
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# DESCRIPTION
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# The postfix-install script is to be run from the top-level
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# Postfix source directory. It implements the following operations:
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# .IP o
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# Install or upgrade Postfix from source code. This requires
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# super-user privileges.
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# .IP o
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# Build a package that can be distributed to other systems, in order
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# to install or upgrade Postfix elsewhere. This requires no super-user
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# privileges. To complete the installation after unpacking the
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# package, execute as super-user the post-install script in the Postfix
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# configuration directory.
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# .PP
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# The postfix-install script is controlled by installation parameters.
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# Specific parameters are described at the end of this document.
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#
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# By default, postfix-install asks the user for installation
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# parameter settings. Most settings are stored in the installed
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# main.cf file. Stored settings are used as site-specific defaults
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# when the postfix-install script is run later.
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#
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# The names of Postfix files and directories, as well as their
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# ownerships and permissions, are stored in the postfix-files file
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# in the Postfix configuration directory. This information is used
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# by the post-install script (also in the configuration directory)
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# for creating missing queue directories when Postfix is started,
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# and for setting correct ownership and permissions when Postfix
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# is installed from a pre-built package or from source code.
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#
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# Arguments
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# .IP -non-interactive
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# Do not ask the user for parameter settings. Installation parameters
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# are specified via one of the non-interactive methods described
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# below.
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# INSTALLATION PARAMETER INPUT METHODS
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# .ad
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# .fi
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# Parameter settings can be specified through a variety of
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# mechanisms. In order of decreasing precedence these are:
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# .IP "interactive mode"
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# By default, postfix-install will ask the user for installation
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# parameter settings. These settings have the highest precedence.
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# .IP "command line"
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# Parameter settings can be given as name=value arguments on
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# the postfix-install command line.
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# .IP "process environment"
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# Parameter settings can be given as name=value environment
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# variables. Environment parameters can also be specified on the
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# make(1) command line as "make install name=value ...".
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# .IP "installed configuration files"
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# If a parameter is not specified via the command line or via the
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# process environment, postfix-install will attempt to extract its
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# value from an already installed Postfix main.cf configuration file.
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# .IP "built-in defaults"
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# These settings have the lowest precedence.
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# INSTALLATION PARAMETER DESCRIPTION
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# .ad
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# .fi
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# The description of installation parameters and their built-in
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# default settings is as follows:
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# .IP install_root
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# Prefix that is prepended to the pathnames of installed files.
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# Specify this ONLY when creating pre-built packages for distribution to
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# other systems. The built-in default is "/", the local root directory.
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# This parameter setting is not recorded in the installed main.cf file.
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# .IP tempdir
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# Directory for scratch files while installing Postfix.
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# You must have write permission in this directory.
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# The built-in default directory name is the current directory.
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# This parameter setting is not recorded in the installed main.cf file.
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# .IP config_directory
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# The destination directory for Postfix configuration files.
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# The built-in default directory name is /etc/postfix.
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# This parameter setting is not recorded in the installed main.cf file.
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# .IP daemon_directory
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# The destination directory for Postfix daemon programs. This directory
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# should not be in the command search path of any users.
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# The built-in default directory name is /usr/libexec/postfix.
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# This parameter setting is recorded in the installed main.cf file.
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# .IP command_directory
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# The destination directory for Postfix administrative commands. This
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# directory should be in the command search path of adminstrative users.
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# The built-in default directory name is system dependent.
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# This parameter setting is recorded in the installed main.cf file.
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# .IP queue_directory
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# The destination directory for Postfix queues.
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# The built-in default directory name is /var/spool/postfix.
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# This parameter setting is recorded in the installed main.cf file.
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# .IP sendmail_path
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# The full destination pathname for the Postfix sendmail command.
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# This is the Sendmail-compatible mail posting interface.
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# The built-in default pathname is system dependent.
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# This parameter setting is recorded in the installed main.cf file.
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# .IP newaliases_path
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# The full destination pathname for the Postfix newaliases command.
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# This is the Sendmail-compatible command to build alias databases
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# for the Postfix local delivery agent.
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# The built-in default pathname is system dependent.
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# This parameter setting is recorded in the installed main.cf file.
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# .IP mailq_path
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# The full destination pathname for the Postfix mailq command.
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# This is the Sendmail-compatible command to list the mail queue.
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# The built-in default pathname is system dependent.
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# This parameter setting is recorded in the installed main.cf file.
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# .IP mail_owner
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# The owner of the Postfix queue. Its numerical user ID and group ID
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# must not be used by any other accounts on the system.
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# The built-in default account name is postfix.
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# This parameter setting is recorded in the installed main.cf file.
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# .IP setgid_group
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# The group for mail submission and for queue management commands.
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# Its numerical group ID must not be used by any other accounts on the
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# system, not even by the mail_owner account.
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# The built-in default group name is postdrop.
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# This parameter setting is recorded in the installed main.cf file.
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# .IP manpage_directory
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# The destination directory for the Postfix on-line manual pages.
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# This parameter setting is recorded in the installed main.cf file.
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# .IP sample_directory
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# The destination directory for the Postfix sample configuration files.
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# This parameter setting is recorded in the installed main.cf file.
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# .IP readme_directory
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# The destination directory for the Postfix README files.
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# This parameter setting is recorded in the installed main.cf file.
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# SEE ALSO
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# post-install(1) post-installation procedure
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# FILES
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# $config_directory/main.cf, Postfix installation configuration.
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# $config_directory/postfix-files, installation control file.
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# $config_directory/install.cf, obsolete configuration file.
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# LICENSE
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# .ad
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# .fi
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# The Secure Mailer license must be distributed with this software.
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# AUTHOR(S)
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# Wietse Venema
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# IBM T.J. Watson Research
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# P.O. Box 704
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# Yorktown Heights, NY 10598, USA
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#--
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# Initialize.
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# By now, shells must have functions. Ultrix users must use sh5 or lose.
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umask 022
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PATH=/bin:/usr/bin:/usr/sbin:/usr/etc:/sbin:/etc:/usr/contrib/bin:/usr/gnu/bin:/usr/ucb:/usr/bsd
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SHELL=/bin/sh
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IFS="
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"
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BACKUP_IFS="$IFS"
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USAGE="Usage: $0 [name=value] [option]
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-non-interactive Do not ask for installation parameters.
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name=value Specify an installation parameter".
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# Process command-line options and parameter settings. Work around
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# brain damaged shells. "IFS=value command" should not make the
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# IFS=value setting permanent. But some broken standard allows it.
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for arg
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do
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case $arg in
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*=*) IFS= eval $arg; IFS="$BACKUP_IFS";;
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-non-int*) non_interactive=1;;
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*) echo "$0: Error: $USAGE" 1>&2; exit 1;;
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esac
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shift
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done
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# Sanity checks.
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test -z "$non_interactive" -a ! -t 0 && {
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echo $0: Error: for non-interactive use, run: \"$0 -non-interactive\" 1>&2
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exit 1
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}
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test -x bin/postconf || {
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echo $0: Error: no bin/postconf file. Did you forget to run \"make\"? 1>&2
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exit 1
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}
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case `uname -s` in
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HP-UX*) FMT=cat;;
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*) FMT=fmt;;
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esac
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# Disclaimer.
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test -z "$non_interactive" && cat <<EOF | ${FMT}
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Warning: if you use this script to install Postfix locally,
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this script will replace existing sendmail or Postfix programs.
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Make backups if you want to be able to recover.
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Before installing files, this script prompts you for some
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definitions. Most definitions will be remembered, so you have
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to specify them only once. All definitions should have a
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reasonable default value.
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EOF
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# The following shell functions replace files/symlinks while minimizing
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# the time that a file does not exist, and avoid copying over files
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# in order to not disturb running programs. That is certainly desirable
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# when upgrading Postfix on a live machine. It also avoids surprises
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# when building a Postfix package for distribution to other systems.
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compare_or_replace() {
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mode=$1
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owner=$2
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group=$3
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src=$4
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dst=$5
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(cmp $src $dst >/dev/null 2>&1 && echo Skipping $dst...) || {
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echo Updating $dst...
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rm -f $tempdir/junk || exit 1
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cp $src $tempdir/junk || exit 1
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mv -f $tempdir/junk $dst || exit 1
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test -z "$owner" || chown $owner $dst || exit 1
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test -z "$group" || chgrp $group $dst || exit 1
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chmod $mode $dst || exit 1
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}
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}
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compare_or_symlink() {
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(cmp $1 $2 >/dev/null 2>&1 && echo Skipping $2...) || {
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echo Updating $2...
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rm -f $tempdir/junk || exit 1
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dest=`echo $1 | sed '
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s;^'$install_root';;
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s;/\./;/;g
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s;//*;/;g
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s;^/;;
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'`
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link=`echo $2 | sed '
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s;^'$install_root';;
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s;/\./;/;g
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s;//*;/;g
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s;^/;;
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s;/[^/]*$;/;
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s;[^/]*/;../;g
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s;$;'$dest';
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'`
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ln -s $link $tempdir/junk || exit 1
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mv -f $tempdir/junk $2 || {
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echo $0: Error: your mv command is unable to rename symlinks. 1>&2
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echo If you run Linux, upgrade to GNU fileutils-4.0 or better, 1>&2
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echo or choose a tempdir that is in the same file system as $2. 1>&2
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exit 1
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}
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}
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}
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check_parent() {
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for path
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do
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dir=`echo $path|sed -e 's/[/][/]*[^/]*$//' -e 's/^$/\//'`
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test -d $dir || mkdir -p $dir || exit 1
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done
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}
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# How to supress newlines in echo.
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case `echo -n` in
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"") n=-n; c=;;
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*) n=; c='\c';;
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esac
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# Prompts.
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install_root_prompt="the prefix for installed file names. Specify
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this ONLY if you are building ready-to-install packages for
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distribution to other machines."
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tempdir_prompt="a directory for scratch files while installing
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Postfix. You must have write permission in this directory."
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config_directory_prompt="the destination directory for installed
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Postfix configuration files."
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daemon_directory_prompt="the destination directory for installed
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Postfix daemon programs. This directory should not be in the
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command search path of any users."
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command_directory_prompt="the destination directory for installed
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Postfix administrative commands. This directory should be in the
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command search path of adminstrative users."
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queue_directory_prompt="the destination directory for Postfix
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queues."
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sendmail_path_prompt="the full destination pathname for the installed
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Postfix sendmail command. This is the Sendmail-compatible mail
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posting interface."
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newaliases_path_prompt="the full destination pathname for the
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installed Postfix newaliases command. This is the Sendmail-compatible
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command to build alias databases for the Postfix local delivery
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agent."
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mailq_path_prompt="the full destination pathname for the installed
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Postfix mailq command. This is the Sendmail-compatible mail queue
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listing command."
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mail_owner_prompt="the owner of the Postfix queue. Specify an
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account with numerical user ID and group ID values that are not
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used by any other accounts on the system."
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setgid_group_prompt="the group for mail submission and for queue
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management commands. Specify a group name with a numerical group
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ID that is not shared with other accounts, not even with the Postfix
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mail_owner account. You can no longer specify \"no\" here."
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manpage_directory_prompt="the destination directory for the Postfix on-line
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manual pages. You can no longer specify \"no\" here."
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sample_directory_prompt="the destination directory for the Postfix
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sample configuration files."
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readme_directory_prompt="the destination directory for the Postfix
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README files. Specify \"no\" if you do not want to install these files."
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# Default settings, just to get started.
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: ${install_root=/}
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: ${tempdir=`pwd`}
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: ${config_directory=`bin/postconf -h -d config_directory`}
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# Find out the location of installed configuration files.
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test -z "$non_interactive" && for name in install_root tempdir config_directory
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do
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while :
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do
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echo
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eval echo Please specify \$${name}_prompt | ${FMT}
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eval echo \$n "$name: [\$$name]\ \$c"
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read ans
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case $ans in
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"") break;;
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*) case $ans in
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/*) eval $name=$ans; break;;
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*) echo; echo $0: Error: $name should be an absolute path name. 1>&2;;
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esac;;
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esac
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done
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done
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# In case some systems special-case pathnames beginning with //.
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case $install_root in
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/) install_root=
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esac
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CONFIG_DIRECTORY=$install_root$config_directory
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# If a parameter is not set via the command line or environment,
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# try to use settings from installed configuration files.
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# Extract parameter settings from the obsolete install.cf file, as
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# a transitional aid.
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grep setgid_group $CONFIG_DIRECTORY/main.cf >/dev/null 2>&1 || {
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test -f $CONFIG_DIRECTORY/install.cf && {
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for name in sendmail_path newaliases_path mailq_path setgid manpages
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do
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eval junk=\$$name
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case "$junk" in
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"") eval unset $name;;
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esac
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eval : \${$name="\`. $CONFIG_DIRECTORY/install.cf; echo \$$name\`"} \
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|| exit 1
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done
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: ${setgid_group=$setgid}
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: ${manpage_directory=$manpages}
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}
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}
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# Extract parameter settings from the installed main.cf file.
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test -f $CONFIG_DIRECTORY/main.cf && {
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for name in daemon_directory command_directory queue_directory mail_owner \
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setgid_group sendmail_path newaliases_path mailq_path manpage_directory \
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sample_directory readme_directory
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do
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eval junk=\$$name
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case "$junk" in
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"") eval unset $name;;
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esac
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eval : \${$name=\`bin/postconf -c $CONFIG_DIRECTORY -h $name\`} ||
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exit 1
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done
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}
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# Use built-in defaults as the final source of parameter settings.
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for name in daemon_directory command_directory queue_directory mail_owner \
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setgid_group sendmail_path newaliases_path mailq_path manpage_directory \
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sample_directory readme_directory
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do
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eval junk=\$$name
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case "$junk" in
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"") eval unset $name;;
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esac
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eval : \${$name=\`bin/postconf -d -h $name\`} || exit 1
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done
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# Override settings manually.
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test -z "$non_interactive" && for name in daemon_directory command_directory \
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queue_directory sendmail_path newaliases_path mailq_path mail_owner \
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setgid_group manpage_directory sample_directory readme_directory
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do
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while :
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do
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echo
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eval echo Please specify \$${name}_prompt | ${FMT}
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eval echo \$n "$name: [\$$name]\ \$c"
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read ans
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case $ans in
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"") break;;
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*) eval $name=$ans; break;;
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esac
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done
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done
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# Sanity checks
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case "$setgid_group" in
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no) (echo $0: Error: the setgid_group parameter no longer accepts
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echo \"no\" values. Try again with \"setgid_group=groupname\" on the
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echo command line or execute \"make install\" and specify setgid_group
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echo interactively.) | ${FMT} 1>&2
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exit 1;;
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esac
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case "$manpage_directory" in
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no) (echo $0: Error: the manpage_directory parameter no longer accepts
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echo \"no\" values. Try again with \"manpage_directory=/path/name\"
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echo on the command line or execute \"make install\" and specify
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echo manpage_directory interactively.) | ${FMT} 1>&2
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exit 1;;
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esac
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for path in "$readme_directory"
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do
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case "$path" in
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/*) ;;
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no) ;;
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*) echo $0: Error: \"$path\" should be \"no\" or an absolute path name. 1>&2
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exit 1;;
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esac
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done
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for path in "$daemon_directory" "$command_directory" "$queue_directory" \
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"$sendmail_path" "$newaliases_path" "$mailq_path" "$manpage_directory" \
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"$sample_directory"
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do
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case "$path" in
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/*) ;;
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*) echo $0: Error: \"$path\" should be an absolute path name. 1>&2; exit 1;;
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esac
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done
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test -d $tempdir || mkdir -p $tempdir || exit 1
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trap "rm -f $tempdir/junk" 0 1 2 3 15
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( rm -f $tempdir/junk && touch $tempdir/junk ) || {
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echo $0: Error: you have no write permission to $tempdir. 1>&2
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echo Specify an alternative directory for scratch files. 1>&2
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exit 1
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}
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test -z "$install_root" && {
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chown root $tempdir/junk >/dev/null 2>&1 || {
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echo Error: you have no permission to change file ownership. 1>&2
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exit 1
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}
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chown "$mail_owner" $tempdir/junk >/dev/null 2>&1 || {
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echo $0: Error: \"$mail_owner\" needs an entry in the passwd file. 1>&2
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echo Remember, \"$mail_owner\" needs a dedicated user and group id. 1>&2
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exit 1
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}
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chgrp "$setgid_group" $tempdir/junk >/dev/null 2>&1 || {
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echo $0: Error: \"$setgid_group\" needs an entry in the group file. 1>&2
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echo Remember, \"$setgid_group\" needs a dedicated group id. 1>&2
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exit 1
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}
|
|
|
|
}
|
|
|
|
rm -f $tempdir/junk || exit 1
|
|
|
|
trap 0 1 2 3 15
|
|
|
|
# Avoid clumsiness.
|
|
|
|
DAEMON_DIRECTORY=$install_root$daemon_directory
|
|
COMMAND_DIRECTORY=$install_root$command_directory
|
|
QUEUE_DIRECTORY=$install_root$queue_directory
|
|
SENDMAIL_PATH=$install_root$sendmail_path
|
|
NEWALIASES_PATH=$install_root$newaliases_path
|
|
MAILQ_PATH=$install_root$mailq_path
|
|
MANPAGE_DIRECTORY=$install_root$manpage_directory
|
|
SAMPLE_DIRECTORY=$install_root$sample_directory
|
|
README_DIRECTORY=$install_root$readme_directory
|
|
|
|
# Avoid repeated tests for existence of these; default permissions suffice.
|
|
|
|
test -d $DAEMON_DIRECTORY || mkdir -p $DAEMON_DIRECTORY || exit 1
|
|
test -d $COMMAND_DIRECTORY || mkdir -p $COMMAND_DIRECTORY || exit 1
|
|
test -d $COMMAND_DIRECTORY || mkdir -p $COMMAND_DIRECTORY || exit 1
|
|
test -d $SAMPLE_DIRECTORY || mkdir -p $SAMPLE_DIRECTORY || exit 1
|
|
test "$readme_directory" = "no" -o -d $README_DIRECTORY ||
|
|
mkdir -p $README_DIRECTORY || exit 1
|
|
|
|
# Upgrade or first-time installation?
|
|
|
|
if [ -f $CONFIG_DIRECTORY/main.cf ]
|
|
then
|
|
post_install_options="upgrade-source"
|
|
else
|
|
post_install_options="first-install"
|
|
fi
|
|
|
|
# Install files, using information from the postfix-files file.
|
|
|
|
exec < conf/postfix-files || exit 1
|
|
while IFS=: read path type owner group mode flags junk
|
|
do
|
|
IFS="$BACKUP_IFS"
|
|
|
|
# Skip comments.
|
|
|
|
case $path in
|
|
[$]*) ;;
|
|
*) continue;;
|
|
esac
|
|
|
|
# Skip over files that must be preserved.
|
|
|
|
case $flags in
|
|
*p*) eval test -f $install_root$path && {
|
|
eval echo "Skipping $install_root$path..."
|
|
continue
|
|
};;
|
|
esac
|
|
|
|
# If installing from source code, apply special permissions or ownership.
|
|
# If building a package, don't apply special permissions or ownership.
|
|
|
|
case $install_root in
|
|
"") case $owner in
|
|
[$]*) eval owner=$owner;;
|
|
root) owner=;;
|
|
esac
|
|
case $group in
|
|
[$]*) eval group=$group;;
|
|
-) group=;;
|
|
esac;;
|
|
*) case $mode in
|
|
[1-7]755) mode=755;;
|
|
esac
|
|
owner=
|
|
group=;;
|
|
esac
|
|
|
|
# Create directory.
|
|
|
|
case $type in
|
|
d) eval path=$install_root$path
|
|
test "$path" = "${install_root}no" -o -d $path || {
|
|
mkdir -p $path || exit 1
|
|
test -z "$owner" || chown $owner $path || exit 1
|
|
test -z "$group" || chgrp $group $path || exit 1
|
|
chmod $mode $path || exit 1
|
|
}
|
|
continue;;
|
|
[fl]) ;;
|
|
*) echo $0: Error: unknown type for $path in conf/postfix-files; exit 1;;
|
|
esac
|
|
|
|
# Install or replace file.
|
|
|
|
echo $path | (IFS=/ read prefix file; IFS="$BACKUP_IFS"
|
|
case $prefix in
|
|
'$daemon_directory')
|
|
compare_or_replace $mode "$owner" "$group" libexec/$file \
|
|
$DAEMON_DIRECTORY/$file || exit 1;;
|
|
'$command_directory')
|
|
compare_or_replace $mode "$owner" "$group" bin/$file \
|
|
$COMMAND_DIRECTORY/$file || exit 1;;
|
|
'$config_directory')
|
|
compare_or_replace $mode "$owner" "$group" conf/$file \
|
|
$CONFIG_DIRECTORY/$file || exit 1;;
|
|
'$sendmail_path')
|
|
check_parent $SENDMAIL_PATH || exit 1
|
|
compare_or_replace $mode "$owner" "$group" bin/sendmail \
|
|
$SENDMAIL_PATH || exit 1;;
|
|
'$mailq_path')
|
|
check_parent $MAILQ_PATH || exit 1
|
|
compare_or_symlink $SENDMAIL_PATH $MAILQ_PATH || exit 1;;
|
|
'$newaliases_path')
|
|
check_parent $NEWALIASES_PATH || exit 1
|
|
compare_or_symlink $SENDMAIL_PATH $NEWALIASES_PATH || exit 1;;
|
|
'$manpage_directory')
|
|
check_parent $MANPAGE_DIRECTORY/$file || exit 1
|
|
compare_or_replace $mode "$owner" "$group" man/$file \
|
|
$MANPAGE_DIRECTORY/$file || exit 1;;
|
|
'$sample_directory')
|
|
compare_or_replace $mode "$owner" "$group" conf/$file \
|
|
$SAMPLE_DIRECTORY/$file || exit 1;;
|
|
'$readme_directory')
|
|
test "$readme_directory" = "no" ||
|
|
compare_or_replace $mode "$owner" "$group" README_FILES/$file \
|
|
$README_DIRECTORY/$file || exit 1;;
|
|
*) echo $0: Error: unknown entry $path in conf/postfix-files; exit 1;;
|
|
esac) || exit 1
|
|
done
|
|
|
|
# Save the installation parameters to main.cf even when they haven't
|
|
# changed from their current default. Defaults can change between
|
|
# Postfix releases, and software should not suddenly be installed in
|
|
# the wrong place when Postfix is being upgraded.
|
|
|
|
bin/postconf -c $CONFIG_DIRECTORY -e \
|
|
"daemon_directory = $daemon_directory" \
|
|
"command_directory = $command_directory" \
|
|
"queue_directory = $queue_directory" \
|
|
"mail_owner = $mail_owner" \
|
|
"setgid_group = $setgid_group" \
|
|
"sendmail_path = $sendmail_path" \
|
|
"mailq_path = $mailq_path" \
|
|
"newaliases_path = $newaliases_path" \
|
|
"manpage_directory = $manpage_directory" \
|
|
"sample_directory = $sample_directory" \
|
|
"readme_directory = $readme_directory" \
|
|
|| exit 1
|
|
|
|
# If Postfix is being installed locally from source code, do the
|
|
# post-install processing now.
|
|
|
|
test -n "$install_root" || {
|
|
export daemon_directory command_directory queue_directory sendmail_path \
|
|
newaliases_path mailq_path mail_owner setgid_group manpage_directory \
|
|
sample_directory readme_directory
|
|
${SHELL} conf/post-install $post_install_options || exit 1
|
|
}
|