Improve banner (3.0)

... for readablity and bugs to be filed (see #2506)

This PR defines a short string for the OpenSSL banner as some suppliers have
makde them (unnecessarily) long so that it won't fit in the banner.

The banner also now omits the built line nad bash version when scanning
as for the user it is normally not important.

testssl.sh

@@ -332,6 +332,7 @@ OSSL_VER=""                             # openssl version, will be auto-determin
 OSSL_VER_MAJOR=0
 OSSL_VER_MINOR=0
 OSSL_VER_APPENDIX="none"
+OSSL_SHORT_STR=""                       # short string for banner
 CLIENT_PROB_NO=1
 HAS_DH_BITS=${HAS_DH_BITS:-false}       # initialize openssl variables
 HAS_CURVES=false
@@ -17114,7 +17115,7 @@ test_openssl_suffix() {
 find_openssl_binary() {
      local s_client_has=$TEMPDIR/s_client_has.txt
      local s_client_starttls_has=$TEMPDIR/s_client_starttls_has.txt
-     local openssl_location cwd=""
+     local openssl_location cwd="" yr=1
      local ossl_wo_dev_info
      local curve
      local -a curves_ossl=("sect163k1" "sect163r1" "sect163r2" "sect193r1" "sect193r2" "sect233k1" "sect233r1" "sect239k1" "sect283k1" "sect283r1" "sect409k1" "sect409r1" "sect571k1" "sect571r1" "secp160k1" "secp160r1" "secp160r2" "secp192k1" "prime192v1" "secp224k1" "secp224r1" "secp256k1" "prime256v1" "secp384r1" "secp521r1" "brainpoolP256r1" "brainpoolP384r1" "brainpoolP512r1" "X25519" "X448")
@@ -17163,6 +17164,21 @@ find_openssl_binary() {
      OSSL_VER_PLATFORM=$($OPENSSL version -p 2>/dev/null | sed 's/^platform: //')
      OSSL_BUILD_DATE=$($OPENSSL version -a 2>/dev/null | grep '^built' | sed -e 's/built on//' -e 's/: ... //' -e 's/: //' -e 's/ UTC//' -e 's/ +0000//' -e 's/.000000000//')
 
+     # Determine an OpenSSL short string for the banner
+     # E.g MacOS' homebrew and Debian add a library string: OpenSSL 3.3.1 4 Jun 2024 (Library: OpenSSL 3.3.1 4 Jun 2024),
+     # so we omit the part after the round bracket as it breaks formatting and doesnt provide more useful info
+     OSSL_SHORT_STR=$($OPENSSL version 2>/dev/null)
+     OSSL_SHORT_STR=${OSSL_SHORT_STR%\(*}
+     # Now handle strings like this: OpenSSL 1.1.1l-fips  24 Aug 2021 SUSE release 150500.17.34.1
+     # we find the year, remove until first occurence, readd it
+     for yr in {2014..2029} ; do
+          if [[ $OSSL_SHORT_STR =~ \ $yr ]] ; then
+               OSSL_SHORT_STR=${OSSL_SHORT_STR%%$yr*}
+               OSSL_SHORT_STR="${OSSL_SHORT_STR}${yr}"
+               break
+          fi
+     done
+
      # see #190, reverting logic: unless otherwise proved openssl has no dh bits
      case "$OSSL_VER_MAJOR.$OSSL_VER_MINOR" in
           1.0.2|1.1.0|1.1.1|3*) HAS_DH_BITS=true ;;
@@ -17719,6 +17735,8 @@ prepare_arrays() {
 
 mybanner() {
      local bb1 bb2 bb3
+     local spaces="  "
+     local full="$1"
 
      "$QUIET" && return
      "$CHILD_MASS_TESTING" && return
@@ -17726,38 +17744,44 @@ mybanner() {
      bb1=$(cat <<EOF
 
 #####################################################################
-    $PROG_NAME version $VERSION from
 EOF
 )
-     bb2=$(cat <<EOF
+   bb2=$(cat <<EOF
 
   This program is free software. Distribution and modification under
   GPLv2 permitted. USAGE w/o ANY WARRANTY. USE IT AT YOUR OWN RISK!
 
-    Please file bugs @
 EOF
 )
-     bb3=$(cat <<EOF
+   bb3=$(cat <<EOF
 
 #####################################################################
 EOF
 )
-     pr_bold "$bb1 "
+     prln_bold "$bb1"; out "$spaces" ; pr_bold "$PROG_NAME"; out " version " ; pr_bold "$VERSION" ; out " from "
      pr_boldurl "$SWURL"; outln
      if [[ -n "$GIT_REL" ]]; then
-          pr_bold "    ("
+          out "$spaces"
+          pr_bold "("
           pr_litegrey "$GIT_REL"
           prln_bold ")"
      fi
-     pr_bold "$bb2 "
+     prln_bold "$bb2"
+     out "\n${spaces}" ; out "Please file bugs @ "
      pr_boldurl "https://testssl.sh/bugs/"; outln
      pr_bold "$bb3"
      outln "\n"
-     out " Using "; pr_italic "bash ${BASH_VERSINFO[0]}.${BASH_VERSINFO[1]}.${BASH_VERSINFO[2]}"; out ".  "
+     out "${spaces}Using "
-                    pr_italic "$($OPENSSL version 2>/dev/null)"; outln " [~$OPENSSL_NR_CIPHERS ciphers]"
+     pr_italic "$OSSL_SHORT_STR"
-     out "    on $HNAME:"
+     outln "  [~$OPENSSL_NR_CIPHERS ciphers]"
+     out "${spaces}on $HNAME:"
      outln "$OPENSSL_LOCATION"
-     out "    (built: "; pr_italic "$OSSL_BUILD_DATE"; out ", platform: "; pr_italic "$OSSL_VER_PLATFORM"; outln ")"
+     if [[ -n $full ]] || [[ $DEBUG -ge 1 ]]; then
+          out "${spaces}built: "; pr_italic "$OSSL_BUILD_DATE"; out ", platform: "; prln_italic "$OSSL_VER_PLATFORM"
+          out "${spaces}Using "
+          pr_italic "bash ${BASH_VERSINFO[0]}.${BASH_VERSINFO[1]}.${BASH_VERSINFO[2]}"
+     fi
+     outln
 }
 
 calc_scantime() {
@@ -19698,7 +19722,8 @@ parse_cmd_line() {
                get_install_dir
                find_openssl_binary
                prepare_debug
-               mybanner
+               # full banner
+               mybanner true
                exit $ALLOK
                ;;
      esac