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63 lines
1.6 KiB
Bash
Executable File
63 lines
1.6 KiB
Bash
Executable File
#!/bin/sh
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target="$1"
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loc="$2"
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test "$target" || exit 1
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test "$loc" || loc=.
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test -x "$loc/usage" || exit 1
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test "$SED" || SED=sed
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test "$DD" || DD=dd
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# Some people were bitten by their system lacking a (proper) od
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od -v -b </dev/null >/dev/null
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if test $? != 0; then
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echo 'od tool is not installed or cannot accept "-v -b" options'
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exit 1
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fi
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exec >"$target.$$"
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echo '#define UNPACKED_USAGE "" \'
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"$loc/usage" | od -v -b \
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| grep -v '^ ' \
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| $SED -e 's/^[^ ]*//' \
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-e 's/ //g' \
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-e '/^$/d' \
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-e 's/\(...\)/\\\1/g' \
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-e 's/^/"/' \
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-e 's/$/" \\/'
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echo ''
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# "grep -v '^ '" is for toybox's od bug: od -b prints some extra lines:
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#0000000 010 000 010 000 133 055 144 146 135 040 133 055 143 040 103 117
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# 000010 000010 026533 063144 020135 026533 020143 047503
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#0000020 116 106 104 111 122 135 040 133 055 154 040 114 117 107 106 111
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# 043116 044504 056522 055440 066055 046040 043517 044506
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#0000040 114 105 135 040 133 055 141 040 101 103 124 111 117 116 106 111
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# 042514 020135 026533 020141 041501 044524 047117 044506
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echo "#define UNPACKED_USAGE_LENGTH `$loc/usage | wc -c`"
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echo
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echo '#define PACKED_USAGE \'
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## Breaks on big-endian systems!
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## # Extra effort to avoid using "od -t x1": -t is not available
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## # in non-CONFIG_DESKTOPed busybox od
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##
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## "$loc/usage" | bzip2 -1 | od -v -x \
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## | $SED -e 's/^[^ ]*//' \
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## -e 's/ //g' \
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## -e '/^$/d' \
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## -e 's/\(..\)\(..\)/0x\2,0x\1,/g'
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## -e 's/$/ \\/'
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"$loc/usage" | bzip2 -1 | $DD bs=2 skip=1 2>/dev/null | od -v -b \
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| grep -v '^ ' \
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| $SED -e 's/^[^ ]*//' \
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-e 's/ //g' \
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-e '/^$/d' \
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-e 's/\(...\)/0\1,/g' \
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-e 's/$/ \\/'
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echo ''
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mv -- "$target.$$" "$target"
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