blob: bf58e5b3bb3b3dacc031f255d006d669fc4ca4ab (
plain)
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#!/bin/sh
if [ "$#" -ne 0 ]; then
echo "usage: $0" >&2
exit 1
fi
TMP=$(mktemp)
trap 'rm "$TMP"' EXIT
cat > "$TMP"
if [ "$(dd if="$TMP" bs=1 count=8 2>/dev/null)" = "farbfeld" ]; then
cat "$TMP"
exit 0
fi
FORMAT=$(file -ib "$TMP" | cut -d ";" -f 1)
case "$FORMAT" in
image/png)
png2ff < "$TMP"
;;
image/jpeg)
jpg2ff < "$TMP"
;;
*)
convert "$TMP" png:- 2>/dev/null | png2ff 2>/dev/null
;;
esac
if [ $? -ne 0 ]; then
printf "%s: failed to convert from %s\n" "$0" "$FORMAT" >&2
exit 1
fi
exit 0
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