45 lines
1.0 KiB
Bash
Executable File
45 lines
1.0 KiB
Bash
Executable File
#!/bin/sh
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set -e
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if [ $# -ne 2 ] || [ "-h" = "$1" ] || [ "--help" = "$1" ] || [ ! -r "$1" ] || [ ! -r "$2" ]; then
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cat <<EOHELP
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Usage: $0 <secret> <manifest>
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sign.sh adds lines to a manifest to indicate the approval
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of the integrity of the firmware as required for automated
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updates. The first argument <secret> references a file harboring
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the private key of a public-private key pair of a developer
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that referenced by its public key in the site configuration.
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The script may be performed multiple times to the same document
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to indicate an approval by multiple developers.
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See also
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* ecdsautils on https://github.com/freifunk-gluon/ecdsautils
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EOHELP
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exit 1
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fi
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SECRET="$1"
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manifest="$2"
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upper="$(mktemp)"
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lower="$(mktemp)"
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trap 'rm -f "$upper" "$lower"' EXIT
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awk 'BEGIN { sep=0 }
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/^---$/ { sep=1; next }
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{ if(sep==0) print > "'"$upper"'";
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else print > "'"$lower"'"}' \
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"$manifest"
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ecdsasign "$upper" < "$SECRET" >> "$lower"
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(
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cat "$upper"
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echo ---
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cat "$lower"
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) > "$manifest"
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