72 lines
1.8 KiB
Bash
Executable File
72 lines
1.8 KiB
Bash
Executable File
#! /bin/sh
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DNSLOOKUP_VERSION=1.5.1
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case "$(uname -ms)" in
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Darwin\ x86_64) DNSLOOKUP_ARCH=darwin-amd64 ;;
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Linux\ x86_64) DNSLOOKUP_ARCH=linux-amd64 ;;
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*)
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echo "Unsupported platform" >&2
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exit 2
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;;
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esac
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RESOLVERS_LIST="v3/public-resolvers.md"
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ERROR_LOG=".error-log"
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: >"$ERROR_LOG"
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if [ ! -x "${DNSLOOKUP_ARCH}/dnslookup" ]; then
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curl -sL https://github.com/ameshkov/dnslookup/releases/download/v${DNSLOOKUP_VERSION}/dnslookup-${DNSLOOKUP_ARCH}-v${DNSLOOKUP_VERSION}.tar.gz | tar xzpf - || exit 1
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fi
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PATH="$(pwd)/${DNSLOOKUP_ARCH}:$PATH"
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try_resolver() {
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ERROR_LOG_TMP=".errors"
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resolver_name="$1"
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stamp="$2"
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if dnslookup one.net "$stamp" >/dev/null 2>&1; then
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echo "pass: ${resolver_name}"
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elif dnslookup one.net "$stamp" >/dev/null 2>&1; then
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echo "pass: ${resolver_name} (1 retry)"
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elif dnslookup one.net "$stamp" >/dev/null 2>&1; then
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echo "pass: ${resolver_name} (2 retries)"
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elif dnslookup one.net "$stamp" >/dev/null 2>"$ERROR_LOG_TMP"; then
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echo "pass: ${resolver_name} (3 retries)"
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else
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if grep -Eq "(no route|unreachable)" "$ERROR_LOG_TMP"; then
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echo "ipv6: ${resolver_name}"
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else
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(
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echo "* FAILED: ${resolver_name}"
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echo "$stamp"
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cat "$ERROR_LOG_TMP"
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echo
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) >>"$ERROR_LOG"
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return 1
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fi
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fi
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}
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resolver_name=""
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while read -r line; do
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case "$line" in
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\#\#\ *)
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resolver_name=$(echo "$line" | sed 's/^## *//')
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continue
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;;
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sdns:*)
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try_resolver "$resolver_name" "$line"
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;;
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esac
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done <"$RESOLVERS_LIST"
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if [ -s "$ERROR_LOG" ]; then
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exec 1>&2
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echo
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echo "** FAILURES **"
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echo
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cat "$ERROR_LOG"
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exit 0
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fi
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