INN commit: trunk/tests (runtests.c)

[INN Commit]

    Date: Friday, August 28, 2015 @ 12:12:02
  Author: iulius
Revision: 9931

Update to latest C TAP Harness release 3.4

Fix segfault in runtests with empty test list.

Modified:
  trunk/tests/runtests.c

------------+
 runtests.c |   18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

Modified: runtests.c
===================================================================
--- runtests.c	2015-08-10 11:51:03 UTC (rev 9930)
+++ runtests.c	2015-08-28 19:12:02 UTC (rev 9931)
@@ -1205,7 +1205,8 @@
 
 /*
  * Read a list of tests from a file, returning the list of tests as a struct
- * testlist.  Reports an error to standard error and exits if the list of
+ * testlist, or NULL if there were no tests (such as a file containing only
+ * comments).  Reports an error to standard error and exits if the list of
  * tests cannot be read.
  */
 static struct testlist *
@@ -1259,6 +1260,12 @@
     }
     fclose(file);
 
+    /* If there were no tests, current is still NULL. */
+    if (current == NULL) {
+        free(listhead);
+        return NULL;
+    }
+
     /* Return the results. */
     return listhead;
 }
@@ -1267,7 +1274,8 @@
 /*
  * Build a list of tests from command line arguments.  Takes the argv and argc
  * representing the command line arguments and returns a newly allocated test
- * list.  The caller is responsible for freeing.
+ * list, or NULL if there were no tests.  The caller is responsible for
+ * freeing.
  */
 static struct testlist *
 build_test_list(char *argv[], int argc)
@@ -1292,6 +1300,12 @@
         current->ts->file = xstrdup(argv[i]);
     }
 
+    /* If there were no tests, current is still NULL. */
+    if (current == NULL) {
+        free(listhead);
+        return NULL;
+    }
+
     /* Return the results. */
     return listhead;
 }