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authorGravatar Yann E. MORIN <yann.morin.1998@free.fr>2015-04-01 00:15:04 +0200
committerGravatar Thomas Petazzoni <thomas.petazzoni@free-electrons.com>2015-04-03 14:08:50 +0200
commit0012b36c148dcd9a68d16a24168dee464beb2da9 (patch)
treea9cff444586334a0e67bf29f590532be899df525 /support
parent1ba85b7f874d926412eb4687e303cea441d65fec (diff)
downloadbuildroot-0012b36c148dcd9a68d16a24168dee464beb2da9.tar.gz
buildroot-0012b36c148dcd9a68d16a24168dee464beb2da9.tar.bz2
support/download: return different exit codes for different failures
Return different exit codes depending on the error that occured: 0: no error (hash file missing, or all hashes match) 1: unknown option 2: hash file exists, but at least one hash in error 3: hash file exists, but no hash for file to check 4: hash file exists, but at least one hash type unknown This will be used in a later patch to decide whether the downloaded file should be kept or removed. Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: Samuel Martin <s.martin49@gmail.com> Cc: Arnout Vandecappelle <arnout@mind.be> Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Diffstat (limited to 'support')
-rwxr-xr-xsupport/download/check-hash15
1 files changed, 12 insertions, 3 deletions
diff --git a/support/download/check-hash b/support/download/check-hash
index 7a30d5b311..ab416c7052 100755
--- a/support/download/check-hash
+++ b/support/download/check-hash
@@ -9,6 +9,15 @@ set -e
# $3: the final basename of the file, to which it will be ultimately
# saved as, to be able to match it to the corresponding hashes
# in the .hash file
+#
+# Exit codes:
+# 0: the hash file exists and the file to check matches all its hashes,
+# or the hash file does not exist
+# 1: unknown command-line option
+# 2: the hash file exists and the file to check does not match at least
+# one of its hashes
+# 3: the hash file exists and there was no hash to check the file against
+# 4: the hash file exists and at least one hash type is unknown
while getopts :q OPT; do
case "${OPT}" in
@@ -48,7 +57,7 @@ check_one_hash() {
*) # Unknown hash, exit with error
printf "ERROR: unknown hash '%s' for '%s'\n" \
"${_h}" "${base}" >&2
- exit 1
+ exit 4
;;
esac
@@ -64,7 +73,7 @@ check_one_hash() {
printf "ERROR: got : %s\n" "${_hash}" >&2
printf "ERROR: Incomplete download, or man-in-the-middle (MITM) attack\n" >&2
- exit 1
+ exit 2
}
# Do we know one or more hashes for that file?
@@ -87,7 +96,7 @@ done <"${h_file}"
if [ ${nb_checks} -eq 0 ]; then
if [ -n "${BR2_ENFORCE_CHECK_HASH}" ]; then
printf "ERROR: No hash found for %s\n" "${base}" >&2
- exit 1
+ exit 3
else
printf "WARNING: No hash found for %s\n" "${base}" >&2
fi