feat: add apache httpd binary classifier (#1448)

Signed-off-by: witchcraze <witchcraze@gmail.com>

syft/pkg/cataloger/binary/cataloger_test.go

@@ -18,6 +18,19 @@ func TestClassifierCataloger_DefaultClassifiers_PositiveCases(t *testing.T) {
 		expected   pkg.Package
 	}{
 		{
+			name:       "positive-httpd-2.4.54",
+			fixtureDir: "test-fixtures/classifiers/positive/httpd-2.4.54",
+			expected: pkg.Package{
+				Name:      "httpd",
+				Version:   "2.4.54",
+				Type:      "binary",
+				PURL:      "pkg:generic/httpd@2.4.54",
+				Locations: singleLocation("httpd"),
+				Metadata: pkg.BinaryMetadata{
+					Classifier: "httpd-binary",
+				},
+			},
+		}, {
 			name:       "positive-php-cli-8.2.1",
 			fixtureDir: "test-fixtures/classifiers/positive/php-cli-8.2.1",
 			expected: pkg.Package{

syft/pkg/cataloger/binary/default_classifiers.go

@@ -132,4 +132,13 @@ var defaultClassifiers = []classifier{
 		PURL:    mustPURL("pkg:generic/php@version"),
 		CPEs:    singleCPE("cpe:2.3:a:php:php:*:*:*:*:*:*:*:*"),
 	},
+	{
+		Class:    "httpd-binary",
+		FileGlob: "**/httpd",
+		EvidenceMatcher: fileContentsVersionMatcher(
+			`(?m)Apache\/(?P<version>[0-9]+\.[0-9]+\.[0-9]+)`),
+		Package: "httpd",
+		PURL:    mustPURL("pkg:generic/httpd@version"),
+		CPEs:    singleCPE("cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*"),
+	},
 }

syft/pkg/cataloger/binary/test-fixtures/classifiers/positive/httpd-2.4.54/httpd

@@ -0,0 +1,18 @@
+<Directory "
+mailto:
+Apache/2.4.54
+ Server at <a href="
+<address>
+--
+</a> Port 
+ Server at 
+Apache/2.4.54 (Unix)
+ap_logio_add_bytes_out
+ap_ident_lookup
+--
+access_compat_ap_satisfies
+Apache
+Apache/2.4
+Apache/2
+<VirtualHost
+<Limit