qt bin classifier, fixed #4467

Signed-off-by: Rez Moss <hi@rezmoss.com>

syft/pkg/cataloger/binary/classifier_cataloger_test.go

@@ -1216,6 +1216,39 @@ func Test_Cataloger_PositiveCases(t *testing.T) {
 				Metadata:  metadata("openssl-binary"),
 			},
 		},
+		{
+			logicalFixture: "qt/4.8.7/linux-amd64",
+			expected: pkg.Package{
+				Name:      "qt",
+				Version:   "4.8.7",
+				Type:      "binary",
+				PURL:      "pkg:generic/qt@4.8.7",
+				Locations: locations("libQtCore.so"),
+				Metadata:  metadata("qt-binary-lib"),
+			},
+		},
+		{
+			logicalFixture: "qt/5.15.2/linux-amd64",
+			expected: pkg.Package{
+				Name:      "qt",
+				Version:   "5.15.2",
+				Type:      "binary",
+				PURL:      "pkg:generic/qt@5.15.2",
+				Locations: locations("libQt5Core.so"),
+				Metadata:  metadata("qt-binary-lib"),
+			},
+		},
+		{
+			logicalFixture: "qt/6.5.0/linux-amd64",
+			expected: pkg.Package{
+				Name:      "qt",
+				Version:   "6.5.0",
+				Type:      "binary",
+				PURL:      "pkg:generic/qt@6.5.0",
+				Locations: locations("libQt6Core.so"),
+				Metadata:  metadata("qt-binary-lib"),
+			},
+		},
 		{
 			logicalFixture: "gcc/12.3.0/linux-amd64",
 			expected: pkg.Package{

syft/pkg/cataloger/binary/classifiers.go

@@ -513,6 +513,19 @@ func DefaultClassifiers() []binutils.Classifier {
 			PURL:    mustPURL("pkg:generic/openssl@version"),
 			CPEs:    singleCPE("cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*", cpe.NVDDictionaryLookupSource),
 		},
+		{
+			Class:    "qt-binary-lib",
+			FileGlob: "**/libQt*Core.so*",
+			EvidenceMatcher: binutils.MatchAny(
+				// Qt 5.x and Qt 6.x pattern [NUL][NUL]Qt 6.5.0 (x86_64-little_endian-...
+				m.FileContentsVersionMatcher(`\x00\x00Qt (?P<version>[0-9]+\.[0-9]+\.[0-9]+) \(`),
+				// Qt 4.x pattern QtCore lib ver 4.8.7
+				m.FileContentsVersionMatcher(`QtCore library version (?P<version>[0-9]+\.[0-9]+\.[0-9]+)`),
+			),
+			Package: "qt",
+			PURL:    mustPURL("pkg:generic/qt@version"),
+			CPEs:    singleCPE("cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:*", cpe.NVDDictionaryLookupSource),
+		},
 		{
 			Class:    "gcc-binary",
 			FileGlob: "**/gcc",