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Fix pattern for matching /etc/hosts entries (3.2)

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`grep -w` matches also `string1-whatsoever` so that entries like

```
192.168.0.10 anystring anystring-apache
192.168.0.11 anystring-tomcat
```

matched 3 entries over 2 lines.

This PR fixes #2937 for 3.2 by improving the pattern, so that `string1` needs a trailing whitespace or an EOL -- besides a leading whitespace..
This commit is contained in:
Dirk Wetter 2025-11-04 09:17:08 +01:00
parent 6bb51ab9ba
commit a5c13a57cf
1 changed files with 6 additions and 3 deletions
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testssl.sh
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@ -21886,24 +21886,27 @@ filter_ip4_address() {
# For security testing sometimes we have local entries. Getent is BS under Linux for localhost: No network, no resolution
# arg1 is the entry we want to look up in the host file
#
get_local_aaaa() {
local ip6=""
local etchosts="/etc/hosts /c/Windows/System32/drivers/etc/hosts"
[[ -z "$1" ]] && echo "" && return 1
# Also multiple records should work fine
ip6=$(grep -wih "$1" $etchosts 2>/dev/null | grep ':' | grep -Ev '^#|\.local' | grep -Ei "[[:space:]]$1" | awk '{ print $1 }')
# grep: find hostname with trailing lf or space. -w doesn't work here
ip6=$(grep -Eih "[[:space:]]$1([[:space:]]|$)" $etchosts 2>/dev/null | grep ':' | grep -Ev '^#|\.local' | awk '{ print $1 }')
if is_ipv6addr "$ip6"; then
echo "$ip6"
else
echo ""
fi
}
get_local_a() {
local ip4=""
local etchosts="/etc/hosts /c/Windows/System32/drivers/etc/hosts"
ip4=$(grep -wih "$1" $etchosts 2>/dev/null | grep -Ev ':|^#|\.local' | grep -Ei "[[:space:]]$1" | awk '{ print $1 }')
# grep: find hostname with trailing lf or space. -w doesn't work here
ip4=$(grep -Eih "[[:space:]]$1([[:space:]]|$)" $etchosts 2>/dev/null | grep -Ev ':|^#|\.local' | awk '{ print $1 }')
if is_ipv4addr "$ip4"; then
echo "$ip4"
else