Use defines in config.h for type & scanf-patterns for eval. Update docs.

[exim.git] / doc / doc-docbook / spec.xfpt

diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt
index c4739a80fb94549212e1c6a62acfd744c9ae7bab..0815c0e4d087d9278a54815fc17906f974323ffe 100644 (file)
--- a/doc/doc-docbook/spec.xfpt
+++ b/doc/doc-docbook/spec.xfpt
@@ -1647,6 +1647,7 @@ architecture and operating system for itself, but the defaults can be
 overridden if necessary.
 
 
 overridden if necessary.
 
 

+.new

 .section "PCRE library" "SECTpcre"
 .cindex "PCRE library"
 Exim no longer has an embedded PCRE library as the vast majority of
 .section "PCRE library" "SECTpcre"
 .cindex "PCRE library"
 Exim no longer has an embedded PCRE library as the vast majority of


@@ -1654,10 +1655,14 @@ modern systems include PCRE as a system library, although you may need
 to install the PCRE or PCRE development package for your operating
 system. If your system has a normal PCRE installation the Exim build
 process will need no further configuration. If the library or the
 to install the PCRE or PCRE development package for your operating
 system. If your system has a normal PCRE installation the Exim build
 process will need no further configuration. If the library or the

-headers are in an unusual location you will need to set the PCRE_LIBS
-and INCLUDE directives appropriately. If your operating system has no
+headers are in an unusual location you will need to either set the PCRE_LIBS
+and INCLUDE directives appropriately,
+or set PCRE_CONFIG=yes to use the installed &(pcre-config)& command.
+If your operating system has no

 PCRE support then you will need to obtain and build the current PCRE
 from &url(ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/).
 PCRE support then you will need to obtain and build the current PCRE
 from &url(ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/).

+More information on PCRE is available at &url(http://www.pcre.org/).
+.wen

 
 .section "DBM libraries" "SECTdb"
 .cindex "DBM libraries" "discussion of"
 
 .section "DBM libraries" "SECTdb"
 .cindex "DBM libraries" "discussion of"


@@ -3386,6 +3391,23 @@ This option acts like &%-bv%&, but verifies the address as a sender rather
 than a recipient address. This affects any rewriting and qualification that
 might happen.
 
 than a recipient address. This affects any rewriting and qualification that
 might happen.
 

+.vitem &%-bw%&
+.oindex "&%-bw%&"
+.cindex "daemon"
+.cindex "inetd"
+.cindex "inetd" "wait mode"
+This option runs Exim as a daemon, awaiting incoming SMTP connections,
+similarly to the &%-bd%& option.  All port specifications on the command-line
+and in the configuration file are ignored.  Queue-running may not be specified.
+
+In this mode, Exim expects to be passed a socket as fd 0 (stdin) which is
+listening for connections.  This permits the system to start up and have
+inetd (or equivalent) listen on the SMTP ports, starting an Exim daemon for
+each port only when the first connection is received.
+
+If the option is given as &%-bw%&<&'time'&> then the time is a timeout, after
+which the daemon will exit, which should cause inetd to listen once more.
+

 .vitem &%-C%&&~<&'filelist'&>
 .oindex "&%-C%&"
 .cindex "configuration file" "alternate"
 .vitem &%-C%&&~<&'filelist'&>
 .oindex "&%-C%&"
 .cindex "configuration file" "alternate"


@@ -9522,9 +9544,10 @@ decimal, even if they start with a leading zero; hexadecimal numbers are not
 permitted. This can be useful when processing numbers extracted from dates or
 times, which often do have leading zeros.
 
 permitted. This can be useful when processing numbers extracted from dates or
 times, which often do have leading zeros.
 

-A number may be followed by &"K"& or &"M"& to multiply it by 1024 or 1024*1024,
+A number may be followed by &"K"&, &"M"& or &"G"& to multiply it by 1024, 1024*1024
+or 1024*1024*1024,

 respectively. Negative numbers are supported. The result of the computation is
 respectively. Negative numbers are supported. The result of the computation is

-a decimal representation of the answer (without &"K"& or &"M"&). For example:
+a decimal representation of the answer (without &"K"&, &"M"& or &"G"&). For example:

 
 .display
 &`${eval:1+1}            `&  yields 2
 
 .display
 &`${eval:1+1}            `&  yields 2


@@ -12850,14 +12873,23 @@ See also the &'Policy controls'& section above.
 Those options that undergo string expansion before use are marked with
 &dagger;.
 
 Those options that undergo string expansion before use are marked with
 &dagger;.
 

-.option accept_8bitmime main boolean false
+.new
+.option accept_8bitmime main boolean true

 .cindex "8BITMIME"
 .cindex "8-bit characters"
 This option causes Exim to send 8BITMIME in its response to an SMTP
 EHLO command, and to accept the BODY= parameter on MAIL commands.
 However, though Exim is 8-bit clean, it is not a protocol converter, and it
 takes no steps to do anything special with messages received by this route.
 .cindex "8BITMIME"
 .cindex "8-bit characters"
 This option causes Exim to send 8BITMIME in its response to an SMTP
 EHLO command, and to accept the BODY= parameter on MAIL commands.
 However, though Exim is 8-bit clean, it is not a protocol converter, and it
 takes no steps to do anything special with messages received by this route.

-Consequently, this option is turned off by default.
+
+Historically Exim kept this option off by default, but the maintainers
+feel that in today's Internet, this causes more problems than it solves.
+It now defaults to true.
+A more detailed analysis of the issues is provided by Dan Bernstein:
+.display
+&url(http://cr.yp.to/smtp/8bitmime.html)
+.endd
+.wen

 
 .option acl_not_smtp main string&!! unset
 .cindex "&ACL;" "for non-SMTP messages"
 
 .option acl_not_smtp main string&!! unset
 .cindex "&ACL;" "for non-SMTP messages"


@@ -34371,6 +34403,12 @@ End
 In order to see the contents of messages on the queue, and to operate on them,
 &'eximon'& must either be run as root or by an admin user.
 
 In order to see the contents of messages on the queue, and to operate on them,
 &'eximon'& must either be run as root or by an admin user.
 

+The command-line parameters of &'eximon'& are passed to &_eximon.bin_& and may
+contain X11 resource parameters interpreted by the X11 library.  In addition,
+if the first parameter starts with the string "gdb" then it is removed and the
+binary is invoked under gdb (the parameter is used as the gdb command-name, so
+versioned variants of gdb can be invoked).
+

 The monitor's window is divided into three parts. The first contains one or
 more stripcharts and two action buttons, the second contains a &"tail"& of the
 main log file, and the third is a display of the queue of messages awaiting
 The monitor's window is divided into three parts. The first contains one or
 more stripcharts and two action buttons, the second contains a &"tail"& of the
 main log file, and the third is a display of the queue of messages awaiting