This PR changes the logic the no-DNS switch works. The switch
now expects a value. "min" does minimum lookups, "none" does
no lookups at all (details see testssl.sh(1) ). "none" is
equivalent to the paranoid (boolean) value "true" before.
See previous commit
This commit finally fixes#1005 so that either a --ssl-native scan
terminates on the next (defined) occasion if there are network connectivity
problems. It introduces another set of variables (MAX_OSSL_FAIL vs. NR_OSSL_FAIL).
As "openssl s_client connect" is sometimes still being used without --ssl-native
it also shortens the wait for regular scans if an outage is encountered.
To make things easier bot sets (incl. *_SOCKET_FAIL) of variables are independent.
For the seldom case that somebody uses --ssl-native with client checks an exception
had to be made as otherwise only MAX_OSSL_FAIL client check would be performed.
This hasn't been understood yet...
As sometimes HTTP header requests (over OpenSSL) fail repeatedly in a way that an empty
reply is returned, the same strategy of detecting problems is applied here,
using MAX_HEADER_FAIL and NR_HEADER_FAIL.
All three detection mechanisims share a new function connectivity_problem().
Dirk
Karsten Weiss