add unit tests and small changes for port range functions

CHANGELOG.md

@@ -14,6 +14,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Add unit tests for osp. [#315](https://github.com/greenbone/gvm-libs/pull/315)
 - Add support for test_alive_hosts_only feature of openvas. [#320](https://github.com/greenbone/gvm-libs/pull/320)
 - Add function to set and get the NVT QoD. [#321](https://github.com/greenbone/gvm-libs/pull/321)
+- Add unit tests for networking.c port list functions. [#325](https://github.com/greenbone/gvm-libs/pull/325)
 
 ### Fixed
 - Fix is_cidr_block(). [#322](https://github.com/greenbone/gvm-libs/pull/322)

CMakeLists.txt

@@ -229,7 +229,7 @@ if (BUILD_TESTS AND NOT SKIP_SRC)
   find_package (cgreen REQUIRED)
 
   add_custom_target (tests
-    DEPENDS array-test xmlutils-test version-test osp-test nvti-test)
+    DEPENDS array-test networking-test xmlutils-test version-test osp-test nvti-test)
 
 endif (BUILD_TESTS AND NOT SKIP_SRC)
 

base/CMakeLists.txt

@@ -83,6 +83,13 @@ if (BUILD_TESTS)
 
   target_link_libraries (array-test ${CGREEN_LIBRARIES} ${GLIB_LDFLAGS} ${LINKER_HARDENING_FLAGS})
 
+  add_executable (networking-test
+                  EXCLUDE_FROM_ALL
+                  networking_tests.c)
+  add_test (networking-test networking-test)
+  target_include_directories (networking-test PRIVATE ${CGREEN_INCLUDE_DIRS} )
+  target_link_libraries (networking-test gvm_base_shared ${CGREEN_LIBRARIES} ${GLIB_LDFLAGS} ${LINKER_HARDENING_FLAGS})
+
   add_executable (version-test
                   EXCLUDE_FROM_ALL
                   version_tests.c)

base/networking.c

@@ -489,12 +489,17 @@ validate_port_range (const char *port_range)
 
       element = g_strstrip (*point);
 
-      /* Strip off any leading type specifier. */
+      /* Strip off any leading type specifier and following whitespace. */
 
       if ((strlen (element) >= 2)
-          && ((element[0] == 'T') || (element[0] == 'U'))
-          && (element[1] == ':'))
-        element = element + 2;
+          && ((element[0] == 'T') || (element[0] == 'U')))
+        {
+          element++;
+          while (*element && isblank (*element))
+            element++;
+          if (*element == ':')
+            element++;
+        }
 
       /* Look for a hyphen. */
 
@@ -589,18 +594,23 @@ validate_port_range (const char *port_range)
  *
  * @param[in]   port_range  Valid port_range string.
  *
- * @return Range array.
+ * @return Range array or NULL if port_range invalid or NULL.
  */
 array_t *
 port_range_ranges (const char *port_range)
 {
   gchar **split, **point, *range_start, *current;
   array_t *ranges;
-  int tcp;
+  int tcp, err;
 
   if (!port_range)
     return NULL;
 
+  /* port_range needs to be a valid port_range string. */
+  err = validate_port_range (port_range);
+  if (err)
+    return NULL;
+
   ranges = make_array ();
 
   while (*port_range && isblank (*port_range))
@@ -628,19 +638,34 @@ port_range_ranges (const char *port_range)
     {
       gchar *hyphen, *element;
       range_t *range;
+      int element_strlen;
 
       element = g_strstrip (*point);
-      if (strlen (element) >= 2)
+      element_strlen = strlen (element);
+
+      if (element_strlen >= 2)
         {
-          if ((element[0] == 'T') && (element[1] == ':'))
+          if ((element[0] == 'T'))
             {
-              tcp = 1;
-              element = element + 2;
+              element++;
+              while (*element && isblank (*element))
+                element++;
+              if (*element == ':')
+                {
+                  element++;
+                  tcp = 1;
+                }
             }
-          else if ((element[0] == 'U') && (element[1] == ':'))
+          else if ((element[0] == 'U'))
             {
-              tcp = 0;
-              element = element + 2;
+              element++;
+              while (*element && isblank (*element))
+                element++;
+              if (*element == ':')
+                {
+                  element++;
+                  tcp = 0;
+                }
             }
           /* Else tcp stays as it is. */
         }

base/networking.h

@@ -49,7 +49,7 @@ struct range
 {
   gchar *comment;       /**< Comment. */
   gchar *id;            /**< UUID. */
-  int end;              /**< End port.  0 for single port. */
+  int end;              /**< End port. For single port end == start. */
   int exclude;          /**< Whether to exclude range. */
   int start;            /**< Start port. */
   port_protocol_t type; /**< Port protocol. */