| Current Path : /usr/lib/rpm/ |
Linux gator3171.hostgator.com 4.19.286-203.ELK.el7.x86_64 #1 SMP Wed Jun 14 04:33:55 CDT 2023 x86_64 |
| Current File : //usr/lib/rpm/tgpg |
#!/bin/sh
for pkg in $*
do
if [ "$pkg" = "" -o ! -e "$pkg" ]; then
echo "no package supplied" 1>&2
exit 1
fi
plaintext=`mktemp ${TMPDIR:-/tmp}/tgpg-$$.XXXXXX`
detached=`mktemp ${TMPDIR:-/tmp}/tgpg-$$.XXXXXX`
# --- Extract detached signature
rpm -qp -vv --qf '%{siggpg:armor}' $pkg > $detached
# --- Figger the offset of header+payload in the package
leadsize=96
o=`expr $leadsize + 8`
set `od -j $o -N 8 -t u1 $pkg`
il=`expr 256 \* \( 256 \* \( 256 \* $2 + $3 \) + $4 \) + $5`
dl=`expr 256 \* \( 256 \* \( 256 \* $6 + $7 \) + $8 \) + $9`
sigsize=`expr 8 + 16 \* $il + $dl`
o=`expr $o + $sigsize + \( 8 - \( $sigsize \% 8 \) \) \% 8`
# --- Extract header+payload
dd if=$pkg ibs=$o skip=1 2>/dev/null > $plaintext
# --- Verify DSA signature using gpg
gpg --batch -vv --debug 0xfc02 --verify $detached $plaintext
# --- Clean up
rm -f $detached $plaintext
done