improved Coverage for gnutls (#598)

Author: SinghHrmn

cve_bin_tool/checkers/gnutls.py

@@ -19,7 +19,7 @@ def get_version(lines, filename):
     """
     regex = [r"gnutls-cli ([0-9]+\.[0-9]+\.[0-9]+)"]
     version_info = dict()
-    version = "UNKNOWN"
+    # regex_find() returns version if found otherwise returns "UNKNOWN"
     version = regex_find(lines, *regex)
 
     for modulename, binary_names in (

test/binaries/test-gnutls_cli-2.1.6_imprv_covrg.c

@@ -0,0 +1,11 @@
+#include <stdio.h>
+
+int main() {
+	printf("This program is designed to test the cve-bin-tool checker.");
+	printf("It outputs a few strings normally associated with gnutls-cli 2.1.6");
+	printf("They appear below this line.");
+	printf("------------------");
+	printf("gnutls-cli 2.1.6");
+
+	return 0;
+}

test/test_scanner.py

@@ -820,6 +820,23 @@ def _file_test(self, url, filename, package, version):
                     "CVE-2019-3836",
                 ],
             ),
+            (
+                "test-gnutls_cli-2.1.6_imprv_covrg.out",
+                "gnutls-cli",
+                "2.1.6",
+                [
+                    # known cves in 2.1.6
+                    "CVE-2009-2730",
+                    "CVE-2009-2409",
+                    "CVE-2009-1417",
+                ],
+                [
+                    # an older cve from before 2.1.6
+                    "CVE-2004-2531",
+                    # an newer cve from after 2.1.6
+                    "CVE-2019-3836",
+                ],
+            ),
             (
                 "test-gnutls-serv-2.1.6.out",
                 "gnutls-cli",