60 lines
1.1 KiB
Bash
60 lines
1.1 KiB
Bash
#!/bin/sh
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#
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# hpdf - Print DVI data on HP/PCL printer
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# Installed in /usr/local/libexec/hpdf
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PATH=/usr/local/bin:$PATH; export PATH
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#
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# Define a function to clean up our temporary files. These exist
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# in the current directory, which will be the spooling directory
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# for the printer.
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#
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cleanup() {
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rm -f hpdf$$.dvi
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}
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#
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# Define a function to handle fatal errors: print the given message
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# and exit 2. Exiting with 2 tells LPD to do not try to reprint the
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# job.
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#
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fatal() {
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echo "$@" 1>&2
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cleanup
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exit 2
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}
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#
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# If user removes the job, LPD will send SIGINT, so trap SIGINT
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# (and a few other signals) to clean up after ourselves.
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#
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trap cleanup 1 2 15
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#
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# Make sure we are not colliding with any existing files.
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#
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cleanup
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#
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# Link the DVI input file to standard input (the file to print).
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#
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ln -s /dev/fd/0 hpdf$$.dvi || fatal "Cannot symlink /dev/fd/0"
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#
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# Make LF = CR+LF
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#
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printf "\033&k2G" || fatal "Cannot initialize printer"
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#
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# Convert and print. Return value from dvilj2p does not seem to be
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# reliable, so we ignore it.
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#
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dvilj2p -M1 -q -e- dfhp$$.dvi
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#
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# Clean up and exit
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#
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cleanup
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exit 0
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