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print_run_command() uses lp_print_command() which internally performs basic substition by calling talloc_sub_basic(). As a result. any of the variables in the "basic set", including "%J" are already substituted. To prevent the unwanted subtitution, we declare all affected configuration options as const, which disabled the basic substition. As a result print_run_command() can run manual substitution on all characters, including %J, in the variadic argument list *before* calling lp_string() to run basic substition which we had disabled before with the const. BUG: https://bugzilla.samba.org/show_bug.cgi?id=13745 Signed-off-by: Ralph Boehme <slow@samba.org> Reviewed-by: Andreas Schneider <asn@samba.org> Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org> Autobuild-Date(master): Thu Nov 7 16:01:21 UTC 2019 on sn-devel-184
43 lines
1.9 KiB
XML
43 lines
1.9 KiB
XML
<samba:parameter name="lpq command"
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context="S"
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type="string"
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constant="1"
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xmlns:samba="http://www.samba.org/samba/DTD/samba-doc">
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<description>
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<para>This parameter specifies the command to be
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executed on the server host in order to obtain <command moreinfo="none">lpq
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</command>-style printer status information.</para>
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<para>This command should be a program or script which
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takes a printer name as its only parameter and outputs printer
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status information.</para>
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<para>Currently nine styles of printer status information
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are supported; BSD, AIX, LPRNG, PLP, SYSV, HPUX, QNX, CUPS, and SOFTQ.
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This covers most UNIX systems. You control which type is expected
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using the <parameter moreinfo="none">printing =</parameter> option.</para>
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<para>Some clients (notably Windows for Workgroups) may not
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correctly send the connection number for the printer they are
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requesting status information about. To get around this, the
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server reports on the first printer service connected to by the
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client. This only happens if the connection number sent is invalid.</para>
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<para>If a <parameter moreinfo="none">%p</parameter> is given then the printer name
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is put in its place. Otherwise it is placed at the end of the
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command.</para>
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<para>Note that it is good practice to include the absolute path
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in the <parameter moreinfo="none">lpq command</parameter> as the <envar>$PATH
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</envar> may not be available to the server. When compiled with
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the CUPS libraries, no <parameter moreinfo="none">lpq command</parameter> is
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needed because smbd will make a library call to obtain the
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print queue listing.</para>
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</description>
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<related>printing</related>
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<value type="example">/usr/bin/lpq -P%p</value>
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<value type="default"><comment>determined by printing parameter</comment></value>
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</samba:parameter>
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