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https://github.com/drwetter/testssl.sh.git
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Merge pull request #1327 from drwetter/IDN_improvements
Idn improvements
This commit is contained in:
Dirk Wetter
GitHub
commit
e909d4cd8c
194
testssl.sh
194
testssl.sh
@ -356,6 +356,15 @@ HAS_CHACHA20=false
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HAS_AES128_GCM=false
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HAS_AES256_GCM=false
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HAS_ZLIB=false
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HAS_DIG=false
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HAS_HOST=false
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HAS_DRILL=false
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HAS_NSLOOKUP=false
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HAS_IDN=false
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HAS_IDN2=false
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HAS_AVAHIRESOLVE=false
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HAS_DIG_NOIDNOUT=false
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OSSL_CIPHERS_S=""
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PORT=443 # unless otherwise auto-determined, see below
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NODE=""
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@ -17031,6 +17040,15 @@ HAS_LMTP: $HAS_LMTP
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HAS_NNTP: $HAS_NNTP
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HAS_IRC: $HAS_IRC
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HAS_DIG: $HAS_DIG
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HAS_HOST: $HAS_HOST
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HAS_DRILL: $HAS_DRILL
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HAS_NSLOOKUP: $HAS_NSLOOKUP
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HAS_IDN: $HAS_IDN
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HAS_IDN2: $HAS_IDN2
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HAS_AVAHIRESOLVE: $HAS_AVAHIRESOLVE
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HAS_DIG_NOIDNOUT: $HAS_DIG_NOIDNOUT
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PATH: $PATH
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PROG_NAME: $PROG_NAME
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TESTSSL_INSTALL_DIR: $TESTSSL_INSTALL_DIR
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@ -17336,13 +17354,12 @@ ignore_no_or_lame() {
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# arg1: URI
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parse_hn_port() {
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local tmp_port
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local node_tmp=""
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NODE="$1"
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NODE="${NODE/https\:\/\//}" # strip "https"
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NODE="${NODE%%/*}" # strip trailing urlpath
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NODE="${NODE%%.}" # strip trailing "." if supplied
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# if there's a trailing ':' probably a starttls/application protocol was specified
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if grep -q ':$' <<< "$NODE"; then
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if grep -wq http <<< "$NODE"; then
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fatal "\"http\" is not what you meant probably" $ERR_CMDLINE
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@ -17350,8 +17367,7 @@ parse_hn_port() {
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fatal "\"$1\" is not a valid URI" $ERR_CMDLINE
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fi
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fi
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# was the address supplied like [AA:BB:CC::]:port ?
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# Was an IPv6 address supplied like [AA:BB:CC::]:port ?
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if grep -q ']' <<< "$NODE"; then
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tmp_port=$(printf "$NODE" | sed 's/\[.*\]//' | sed 's/://')
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# determine v6 port, supposed it was supplied additionally
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@ -17365,9 +17381,34 @@ parse_hn_port() {
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grep -q ':' <<< "$NODE" && \
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PORT=$(sed 's/^.*\://' <<< "$NODE") && NODE=$(sed 's/\:.*$//' <<< "$NODE")
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fi
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# We check for non-ASCII chars now. If there are some we'll try to convert it if IDN/IDN2 is installed
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# If not, we'll continue. Hoping later that dig can use it. If not the error handler will tell
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# Honestly we don't care whether it's IDN2008 or IDN2003 or Emoji domains as long as it works.
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# So we try to resolve anything supplied. If it can't our resolver error handler takes care
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if [[ "$NODE" == *[![:ascii:]]* ]]; then
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if ! "$HAS_IDN2" && ! "$HAS_IDN"; then
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prln_warning " URI contains non-ASCII characters and libidn/libidn2 not available."
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outln " Trying to feed the resolver without converted \"$NODE\" ...\n"
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#ToDo: fileout is missing
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node_tmp="$NODE"
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elif "$HAS_IDN2"; then
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node_tmp="$(idn2 "$NODE" 2>/dev/null)"
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fi
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if "$HAS_IDN" && [[ -z "$node_tmp" ]]; then
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node_tmp="$(idn "$NODE" 2>/dev/null)"
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fi
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if [[ -z "$node_tmp" ]]; then
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prln_warning " URI contains non-ASCII characters and IDN conversion failed."
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outln " Trying to feed the resolver without converted \"$NODE\" ...\n"
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#ToDo: fileout is missing
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node_tmp="$NODE"
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fi
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NODE="$node_tmp"
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fi
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debugme echo $NODE:$PORT
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SNI="-servername $NODE"
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URL_PATH=$(sed 's/https:\/\///' <<< "$1" | sed 's/'"${NODE}"'//' | sed 's/.*'"${PORT}"'//') # remove protocol and node part and port
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URL_PATH=$(sed 's/\/\//\//g' <<< "$URL_PATH") # we rather want // -> /
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[[ -z "$URL_PATH" ]] && URL_PATH="/"
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@ -17407,11 +17448,14 @@ filter_ip4_address() {
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done
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}
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# For security testing sometimes we have local entries. Getent is BS under Linux for localhost: No network, no resolution
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# arg1 is the entry we want to look up in the host file
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get_local_aaaa() {
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local ip6=""
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local etchosts="/etc/hosts /c/Windows/System32/drivers/etc/hosts"
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# for security testing sometimes we have local entries. Getent is BS under Linux for localhost: No network, no resolution
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[[ -z "$1" ]] && echo "" && return 1
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# Also multiple records should work fine
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ip6=$(grep -wih "$1" $etchosts 2>/dev/null | grep ':' | grep -Ev '^#|\.local' | grep -Ei "[[:space:]]$1" | awk '{ print $1 }')
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if is_ipv6addr "$ip6"; then
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echo "$ip6"
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@ -17419,12 +17463,10 @@ get_local_aaaa() {
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echo ""
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fi
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}
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get_local_a() {
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local ip4=""
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local etchosts="/etc/hosts /c/Windows/System32/drivers/etc/hosts"
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# for security testing sometimes we have local entries. Getent is BS under Linux for localhost: No network, no resolution
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ip4=$(grep -wih "$1" $etchosts 2>/dev/null | grep -Ev ':|^#|\.local' | grep -Ei "[[:space:]]$1" | awk '{ print $1 }')
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if is_ipv4addr "$ip4"; then
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echo "$ip4"
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@ -17433,11 +17475,26 @@ get_local_a() {
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fi
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}
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# does a hard exit if no lookup binary is provided
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# Does a hard exit if no lookup binary is provided
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# Checks for IDN capabilities also
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#
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check_resolver_bins() {
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if ! type -p dig &> /dev/null && ! type -p host &> /dev/null && ! type -p drill &> /dev/null && ! type -p nslookup &>/dev/null; then
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type -p dig &> /dev/null && HAS_DIG=true
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type -p host &> /dev/null && HAS_HOST=true
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type -p drill &> /dev/null && HAS_DRILL=true
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type -p nslookup &> /dev/null && HAS_NSLOOKUP=true
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type -p avahi-resolve &>/dev/null && HAS_AVAHIRESOLVE=true
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type -p idn &>/dev/null && HAS_IDN=true
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type -p idn2 &>/dev/null && HAS_IDN2=true
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if ! "$HAS_DIG" && ! "$HAS_HOST" && "$HAS_DRILL" && ! "$HAS_NSLOOKUP"; then
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fatal "Neither \"dig\", \"host\", \"drill\" or \"nslookup\" is present" $ERR_DNSBIN
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fi
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if "$HAS_DIG"; then
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if dig +noidnout -t a 2>&1 | grep -Eqv 'Invalid option: \+noidnout|IDN support not enabled'; then
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HAS_DIG_NOIDNOUT=true
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fi
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fi
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return 0
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}
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@ -17446,7 +17503,9 @@ check_resolver_bins() {
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get_a_record() {
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local ip4=""
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local saved_openssl_conf="$OPENSSL_CONF"
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local noidnout=""
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[[ "$HAS_DIG_NOIDNOUT" ]] && noidnout="+noidnout"
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[[ "$NODNS" == none ]] && return 0 # if no DNS lookup was instructed, leave here
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if [[ "$1" == localhost ]]; then
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# This is a bit ugly but prevents from doing DNS lookups which could fail
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@ -17459,33 +17518,26 @@ get_a_record() {
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return 0
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fi
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OPENSSL_CONF="" # see https://github.com/drwetter/testssl.sh/issues/134
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check_resolver_bins
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if [[ "$NODE" == *.local ]]; then
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if type -p avahi-resolve &>/dev/null; then
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if "$HAS_AVAHIRESOLVE"; then
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ip4=$(filter_ip4_address $(avahi-resolve -4 -n "$1" 2>/dev/null | awk '{ print $2 }'))
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elif type -p dig &>/dev/null; then
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elif "$HAS_DIG"; then
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ip4=$(filter_ip4_address $(dig @224.0.0.251 -p 5353 +short -t a +notcp "$1" 2>/dev/null | sed '/^;;/d'))
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else
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fatal "Local hostname given but no 'avahi-resolve' or 'dig' available." $ERR_DNSBIN
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fi
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fi
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if [[ -z "$ip4" ]]; then
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if type -p dig &> /dev/null ; then
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ip4=$(filter_ip4_address $(dig +timeout=2 +tries=2 +short -t a "$1" 2>/dev/null | awk '/^[0-9]/ { print $1 }'))
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fi
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if [[ -z "$ip4" ]] && "$HAS_DIG"; then
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ip4=$(filter_ip4_address $(dig +short +timeout=2 +tries=2 "$noidnout" -t a "$1" 2>/dev/null | awk '/^[0-9]/ { print $1 }'))
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fi
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if [[ -z "$ip4" ]]; then
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type -p host &> /dev/null && \
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ip4=$(filter_ip4_address $(host -t a "$1" 2>/dev/null | awk '/address/ { print $NF }'))
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if [[ -z "$ip4" ]] && "$HAS_HOST"; then
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ip4=$(filter_ip4_address $(host -t a "$1" 2>/dev/null | awk '/address/ { print $NF }'))
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fi
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if [[ -z "$ip4" ]]; then
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type -p drill &> /dev/null && \
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ip4=$(filter_ip4_address $(drill a "$1" | awk '/ANSWER SECTION/,/AUTHORITY SECTION/ { print $NF }' | awk '/^[0-9]/'))
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if [[ -z "$ip4" ]] && "$HAS_DRILL"; then
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ip4=$(filter_ip4_address $(drill a "$1" | awk '/ANSWER SECTION/,/AUTHORITY SECTION/ { print $NF }' | awk '/^[0-9]/'))
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fi
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if [[ -z "$ip4" ]]; then
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if type -p nslookup &>/dev/null; then
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ip4=$(filter_ip4_address $(strip_lf "$(nslookup -querytype=a "$1" 2>/dev/null | awk '/^Name/ { getline; print $NF }')"))
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fi
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if [[ -z "$ip4" ]] && "$HAS_NSLOOKUP"; then
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ip4=$(filter_ip4_address $(strip_lf "$(nslookup -querytype=a "$1" 2>/dev/null | awk '/^Name/ { getline; print $NF }')"))
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fi
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OPENSSL_CONF="$saved_openssl_conf" # see https://github.com/drwetter/testssl.sh/issues/134
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echo "$ip4"
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@ -17496,7 +17548,9 @@ get_a_record() {
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get_aaaa_record() {
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local ip6=""
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local saved_openssl_conf="$OPENSSL_CONF"
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local noidnout=""
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[[ "$HAS_DIG_NOIDNOUT" ]] && noidnout="+noidnout"
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[[ "$NODNS" == none ]] && return 0 # if no DNS lookup was instructed, leave here
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OPENSSL_CONF="" # see https://github.com/drwetter/testssl.sh/issues/134
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if is_ipv6addr "$1"; then
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@ -17507,23 +17561,22 @@ get_aaaa_record() {
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# we need also this here as get_aaaa_record is always called after get_a_record and we want to handle this at a low level
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return 0
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fi
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check_resolver_bins
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if [[ -z "$ip6" ]]; then
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if [[ "$NODE" == *.local ]]; then
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if type -p avahi-resolve &>/dev/null; then
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if "$HAS_AVAHIRESOLVE"; then
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ip6=$(filter_ip6_address $(avahi-resolve -6 -n "$1" 2>/dev/null | awk '{ print $2 }'))
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elif type -p dig &>/dev/null; then
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elif "$HAS_DIG"; then
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ip6=$(filter_ip6_address $(dig @ff02::fb -p 5353 -t aaaa +short +notcp "$NODE"))
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else
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fatal "Local hostname given but no 'avahi-resolve' or 'dig' available." $ERR_DNSBIN
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fi
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elif type -p dig &> /dev/null; then
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ip6=$(filter_ip6_address $(dig +short +timeout=2 +tries=2 -t aaaa "$1" 2>/dev/null | awk '/^[0-9]/ { print $1 }'))
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elif type -p host &> /dev/null ; then
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elif "$HAS_DIG"; then
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ip6=$(filter_ip6_address $(dig +short +timeout=2 +tries=2 "$noidnout" -t aaaa "$1" 2>/dev/null | awk '/^[0-9]/ { print $1 }'))
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elif "$HAS_HOST"; then
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ip6=$(filter_ip6_address $(host -t aaaa "$1" | awk '/address/ { print $NF }'))
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elif type -p drill &> /dev/null; then
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elif "$HAS_DRILL"; then
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ip6=$(filter_ip6_address $(drill aaaa "$1" | awk '/ANSWER SECTION/,/AUTHORITY SECTION/ { print $NF }' | awk '/^[0-9]/'))
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elif type -p nslookup &>/dev/null; then
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elif "$HAS_NSLOOKUP"; then
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ip6=$(filter_ip6_address $(strip_lf "$(nslookup -type=aaaa "$1" 2>/dev/null | awk '/'"^${a}"'.*AAAA/ { print $NF }')"))
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fi
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fi
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@ -17540,6 +17593,9 @@ get_caa_rr_record() {
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local caa_property_value
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local saved_openssl_conf="$OPENSSL_CONF"
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local all_caa=""
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local noidnout=""
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[[ "$HAS_DIG_NOIDNOUT" ]] && noidnout="+noidnout"
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[[ -n "$NODNS" ]] && return 0 # if minimum DNS lookup was instructed, leave here
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# if there's a type257 record there are two output formats here, mostly depending on age of distribution
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@ -17549,18 +17605,17 @@ get_caa_rr_record() {
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# for dig +short the output always starts with '0 issue [..]' or '\# 19 [..]' so we normalize thereto to keep caa_flag, caa_property
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# caa_property then has key/value pairs, see https://tools.ietf.org/html/rfc6844#section-3
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OPENSSL_CONF=""
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check_resolver_bins
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if type -p dig &> /dev/null; then
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raw_caa="$(dig +timeout=3 +tries=3 $1 type257 +short | awk '{ print $1" "$2" "$3 }')"
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if "$HAS_DIG"; then
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raw_caa="$(dig +short +timeout=3 +tries=3 "$noidnout" type257 "$1" 2>/dev/null | awk '{ print $1" "$2" "$3 }')"
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# empty if no CAA record
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elif type -p drill &> /dev/null; then
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elif "$HAS_DRILL"; then
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raw_caa="$(drill $1 type257 | awk '/'"^${1}"'.*CAA/ { print $5,$6,$7 }')"
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elif type -p host &> /dev/null; then
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elif "$HAS_HOST"; then
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raw_caa="$(host -t type257 $1)"
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if grep -Ewvq "has no CAA|has no TYPE257" <<< "$raw_caa"; then
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raw_caa="$(sed -e 's/^.*has CAA record //' -e 's/^.*has TYPE257 record //' <<< "$raw_caa")"
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fi
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elif type -p nslookup &> /dev/null; then
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elif "$HAS_NSLOOKUP"; then
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raw_caa="$(strip_lf "$(nslookup -type=type257 $1 | grep -w rdata_257)")"
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if [[ -n "$raw_caa" ]]; then
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raw_caa="$(sed 's/^.*rdata_257 = //' <<< "$raw_caa")"
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@ -17614,19 +17669,21 @@ get_caa_rr_record() {
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get_mx_record() {
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local mx=""
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local saved_openssl_conf="$OPENSSL_CONF"
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local noidnout=""
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[[ "$HAS_DIG_NOIDNOUT" ]] && noidnout="+noidnout"
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OPENSSL_CONF="" # see https://github.com/drwetter/testssl.sh/issues/134
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check_resolver_bins
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# we need the last two columns here
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if type -p host &> /dev/null; then
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if "$HAS_HOST"; then
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mxs="$(host -t MX "$1" 2>/dev/null | awk '/is handled by/ { print $(NF-1), $NF }')"
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elif type -p dig &> /dev/null; then
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mxs="$(dig +short -t MX "$1" 2>/dev/null | awk '/^[0-9]/ { print $1" "$2 }')"
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elif type -p drill &> /dev/null; then
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elif "$HAS_DIG"; then
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mxs="$(dig +short "$noidnout" -t MX "$1" 2>/dev/null | awk '/^[0-9]/ { print $1" "$2 }')"
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elif "$HAS_DRILL"; then
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mxs="$(drill mx $1 | awk '/IN[ \t]MX[ \t]+/ { print $(NF-1), $NF }')"
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elif type -p nslookup &> /dev/null; then
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elif "$HAS_NSLOOKUP"; then
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mxs="$(strip_lf "$(nslookup -type=MX "$1" 2>/dev/null | awk '/mail exchanger/ { print $(NF-1), $NF }')")"
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else
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# shouldn't reach this, as we checked in the top
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fatal "No dig, host, drill or nslookup" $ERR_DNSBIN
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fi
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OPENSSL_CONF="$saved_openssl_conf"
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@ -17640,8 +17697,8 @@ determine_ip_addresses() {
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local ip4=""
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local ip6=""
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ip4=$(get_a_record $NODE)
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ip6=$(get_aaaa_record $NODE)
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ip4="$(get_a_record "$NODE")"
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ip6="$(get_aaaa_record "$NODE")"
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IP46ADDRs=$(newline_to_spaces "$ip4 $ip6")
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if [[ -n "$CMDLINE_IP" ]]; then
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@ -17666,16 +17723,16 @@ determine_ip_addresses() {
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ip4="$NODE" # only an IPv4 address was supplied as an argument, no hostname
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SNI="" # override Server Name Indication as we test the IP only
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else
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ip4=$(get_local_a $NODE) # is there a local host entry?
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if [[ -z $ip4 ]]; then # empty: no (LOCAL_A is predefined as false)
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ip4=$(get_a_record $NODE)
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ip4=$(get_local_a "$NODE") # is there a local host entry?
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if [[ -z "$ip4" ]]; then # empty: no (LOCAL_A is predefined as false)
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ip4=$(get_a_record "$NODE")
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else
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LOCAL_A=true # we have the ip4 from local host entry and need to signal this to testssl
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fi
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# same now for ipv6
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ip6=$(get_local_aaaa $NODE)
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if [[ -z $ip6 ]]; then
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ip6=$(get_aaaa_record $NODE)
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ip6=$(get_local_aaaa "$NODE")
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if [[ -z "$ip6" ]]; then
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ip6=$(get_aaaa_record "$NODE")
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else
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LOCAL_AAAA=true # we have a local ipv6 entry and need to signal this to testssl
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fi
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@ -17715,21 +17772,20 @@ determine_rdns() {
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[[ -n "$NODNS" ]] && rDNS="(instructed to minimize DNS queries)" && return 0 # PTR records were not asked for
|
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local nodeip="$(tr -d '[]' <<< $NODEIP)" # for DNS we do not need the square brackets of IPv6 addresses
|
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OPENSSL_CONF="" # see https://github.com/drwetter/testssl.sh/issues/134
|
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check_resolver_bins
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if [[ "$NODE" == *.local ]]; then
|
||||
if type -p avahi-resolve &>/dev/null; then
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if "$HAS_AVAHIRESOLVE"; then
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rDNS=$(avahi-resolve -a $nodeip 2>/dev/null | awk '{ print $2 }')
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||||
elif type -p dig &>/dev/null; then
|
||||
elif "$HAS_DIG"; then
|
||||
rDNS=$(dig -x $nodeip @224.0.0.251 -p 5353 +notcp +noall +answer +short | awk '{ print $1 }')
|
||||
fi
|
||||
elif type -p dig &> /dev/null; then
|
||||
elif "$HAS_DIG"; then
|
||||
# 1+2 should suffice. It's a compromise for if e.g. network is down but we have a docker/localhost server
|
||||
rDNS=$(dig -x $nodeip +timeout=1 +tries=2 +noall +answer +short | awk '{ print $1 }') # +short returns also CNAME, e.g. openssl.org
|
||||
elif type -p host &> /dev/null; then
|
||||
elif "$HAS_HOST"; then
|
||||
rDNS=$(host -t PTR $nodeip 2>/dev/null | awk '/pointer/ { print $NF }')
|
||||
elif type -p drill &> /dev/null; then
|
||||
elif "$HAS_DRILL"; then
|
||||
rDNS=$(drill -x ptr $nodeip 2>/dev/null | awk '/ANSWER SECTION/ { getline; print $NF }')
|
||||
elif type -p nslookup &> /dev/null; then
|
||||
elif "$HAS_NSLOOKUP"; then
|
||||
rDNS=$(strip_lf "$(nslookup -type=PTR $nodeip 2>/dev/null | grep -v 'canonical name =' | grep 'name = ' | awk '{ print $NF }' | sed 's/\.$//')")
|
||||
fi
|
||||
OPENSSL_CONF="$saved_openssl_conf" # see https://github.com/drwetter/testssl.sh/issues/134
|
||||
@ -19470,17 +19526,8 @@ parse_cmd_line() {
|
||||
if [[ -z "$1" ]] && [[ -z "$FNAME" ]] && ! "$do_display_only"; then
|
||||
fatal "URI missing" $ERR_CMDLINE
|
||||
else
|
||||
# left off here is the URI
|
||||
if [[ $1 = *[![:ascii:]]* ]]; then
|
||||
if [[ "$(command -v idn)" == "" ]]; then
|
||||
fatal "URI contains non-ASCII characters, and IDN not available."
|
||||
else
|
||||
URI="$(echo $1 | idn)"
|
||||
fi
|
||||
else
|
||||
URI="$1"
|
||||
fi
|
||||
# parameter after URI supplied:
|
||||
# What is left here should be the URI.
|
||||
URI="$1"
|
||||
[[ -n "$2" ]] && fatal "URI comes last" $ERR_CMDLINE
|
||||
fi
|
||||
[[ $CMDLINE_IP == one ]] && [[ "$NODNS" == none ]] && fatal "\"--ip=one\" and \"--nodns=none\" don't work together" $ERR_CMDLINE
|
||||
@ -19713,6 +19760,7 @@ lets_roll() {
|
||||
check_proxy
|
||||
check4openssl_oldfarts
|
||||
check_bsd_mount
|
||||
check_resolver_bins
|
||||
|
||||
if "$do_display_only"; then
|
||||
prettyprint_local "$PATTERN2SHOW"
|
||||
|
||||
Loading…
Reference in New Issue
Block a user