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|
#!/bin/sh
PROG=injectdigs
if [ $# -eq 0 ]
then
digs="md5 sha512"
else
digs=$*
fi
openssl=0
for dig in $digs
do
if ! which "${dig}sum" >/dev/null 2>&1
then
openssl=1
break
fi
done
case $openssl in
1) if ! which openssl >/dev/null 2>&1
then
echo "$PROG: [`echo $digs | tr ' ' /`]sum or openssl need to be installed"
exit 2
fi
esac
awk -v digstr="$digs" -v openssl="$openssl" -v prog="$PROG" '
BEGIN {
diglen = split(digstr, digalgs)
FS = "\n"; RS = ""; ORS = "\n\n"
}
function calcdigs(alg, files)
{
if(0+openssl){
return openssldigs(alg, files)
}else{
return sumdigs(alg, files)
}
}
function sumdigs(alg, files)
{
cmd = alg "sum " files
digests = ""
while(cmd | getline > 0){
digests = digests $1 "\n"
}
close(cmd)
return digests
}
function openssldigs(alg, files)
{
cmd = "openssl " alg " " files
digests = ""
while(cmd | getline > 0){
digests = digests $2 "\n"
}
close(cmd)
return digests
}
1
$1 == "source" {
for(i = 2; i <= NF; i++){
file = $i
sub(/.*\//, "", file)
if(system("test -f " file) != 0){
print prog ": source file " file " is missing!" | "cat 1>&2"
exit 1
}
files = files file " "
filelen++
}
}
END {
FS = " "; RS = "\n"
OFS = ORS = "\n"
if(!filelen) exit 0
for(i = 1; i <= diglen; i++){
alg = digalgs[i]
print alg "sums", calcdigs(alg, files)
}
}
'
|
