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-rwxr-xr-xsrc/shared/generate-ip-protocol-list.sh9
1 files changed, 9 insertions, 0 deletions
diff --git a/src/shared/generate-ip-protocol-list.sh b/src/shared/generate-ip-protocol-list.sh
new file mode 100755
index 0000000..ff898a9
--- /dev/null
+++ b/src/shared/generate-ip-protocol-list.sh
@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: LGPL-2.1-or-later
+
+set -eu
+set -o pipefail
+
+${1:?} -dM -include netinet/in.h - </dev/null | \
+ awk '/^#define[ \t]+IPPROTO_[^ \t]+[ \t]+[^ \t]/ { print $2; }' | \
+ sed -e 's/IPPROTO_//'