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kiss: Portable shasums

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Dylan Araps 2020-05-01 09:47:01 +03:00
parent ad280931e5
commit 3cbcab11f3
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1 changed files with 22 additions and 4 deletions
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@ -143,6 +143,20 @@ readlink() {
printf '%s\n' "$target"
}
sha256sum() {
# This is an implementation of 'sha256sum' using openssl/libressl.
# The checksums are merely extracted from the output and reformatted
# to match that of 'sha256sum'.
#
# This _only_ runs when the 'sha256sum' command is _not_ available
# in the host machine. It's a fallback.
IFS='= ' read -r _ _sum <<EOF
$(openssl dgst -sha256 "$1")
EOF
printf '%s %s\n' "$_sum" "$1"
}
pkg_lint() {
log "$1" "Checking repository files"
@ -519,7 +533,7 @@ pkg_etcsums() (
# prior directory before being able to continue.
cd "$pkg_dir/$1/etc" 2>/dev/null || return 0; cd ..
find etc -type f -exec sha256sum {} + > "$pkg_dir/$1/$pkg_db/$1/etcsums"
find etc -type f -exec "$sha256sum" {} + > "$pkg_dir/$1/$pkg_db/$1/etcsums"
)
pkg_tar() (
@ -713,7 +727,7 @@ pkg_checksums() {
# An easy way to get 'sha256sum' to print with the 'basename'
# of files is to 'cd' to the file's directory beforehand.
(cd "$src_path" && sha256sum "${src##*/}") ||
(cd "$src_path" && "$sha256sum" "${src##*/}") ||
die "$1" "Failed to generate checksums"
done < "$(pkg_find "$1")/sources"
}
@ -940,8 +954,8 @@ pkg_etc() {
# Handle files in /etc/ based on a 3-way checksum check.
find etc ! -type d | while read -r file; do
{ sum_new=$(sha256sum "$file")
sum_sys=$(cd "$KISS_ROOT/"; sha256sum "$file")
{ sum_new=$("$sha256sum" "$file")
sum_sys=$(cd "$KISS_ROOT/"; "$sha256sum" "$file")
sum_old=$("$grep" "$file$" "$mak_dir/c"); } 2>/dev/null ||:
log "$pkg_name" "Doing 3-way handshake for $file"
@ -1531,6 +1545,10 @@ main() {
# not, fallback to a POSIX shell implementation of 'readlink'.
readlink=$(command -v readlink) || readlink=readlink
# Check to see if the sha256sum command exists in the system. If it does
# not, fallback to using openssl.
sha256sum=$(command -v sha256sum) || sha256sum=sha256sum
# Make note of the user's current ID to do root checks later on.
# This is used enough to warrant a place here.
uid=$(id -u)