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Refuse to proceed if no HOST[:PORT] is provided after the options.
Prior to this patch, if the user fails to provide a host:port after specifying cipherscan options, the script runs sed on an empty variable (failing with a syntax error) and then asttempts to cipherscan the target ':443'. This adds a simple test to ensure that a target was actually provided.
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@ -1350,6 +1350,11 @@ done
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# echo parameters left: $@
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if (( $# < 1 )); then
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echo "The final argument must be a valid HOST[:PORT], but none was provided." 1>&2
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exit 1
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fi
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TEMPTARGET=$(sed -e 's/^.* //'<<<"${@}")
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HOST=$(sed -e 's/:.*//'<<<"${TEMPTARGET}")
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PORT=$(sed -e 's/.*://'<<<"${TEMPTARGET}")
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