[PATCH 11/22] Add checkers/test-sources

[David Malcolm <dmalcolm at redhat dot com>]

This patch adds a collection of test sources for use by the testsuites
of the various checker harnesses.

checkers/ChangeLog:
	* test-sources/conditional-leak.c: New file.
	* test-sources/cpychecker-demo.c: New file.
	* test-sources/divide-by-zero.c: New file.
	* test-sources/harmless.c: New file.
	* test-sources/multiple-1.c: New file.
	* test-sources/multiple-2.c: New file.
	* test-sources/out-of-bounds.c: New file.
	* test-sources/read-through-null.c: New file.
	* test-sources/return-of-stack-address.c: New file.
	* test-sources/unconditional-file-leak.c: New file.
---
 checkers/test-sources/conditional-leak.c        |  17 ++++
 checkers/test-sources/cpychecker-demo.c         | 110 ++++++++++++++++++++++++
 checkers/test-sources/divide-by-zero.c          |   4 +
 checkers/test-sources/harmless.c                |   9 ++
 checkers/test-sources/multiple-1.c              |   6 ++
 checkers/test-sources/multiple-2.c              |   9 ++
 checkers/test-sources/out-of-bounds.c           |   6 ++
 checkers/test-sources/read-through-null.c       |   4 +
 checkers/test-sources/return-of-stack-address.c |   6 ++
 checkers/test-sources/unconditional-file-leak.c |  10 +++
 10 files changed, 181 insertions(+)
 create mode 100644 checkers/test-sources/conditional-leak.c
 create mode 100644 checkers/test-sources/cpychecker-demo.c
 create mode 100644 checkers/test-sources/divide-by-zero.c
 create mode 100644 checkers/test-sources/harmless.c
 create mode 100644 checkers/test-sources/multiple-1.c
 create mode 100644 checkers/test-sources/multiple-2.c
 create mode 100644 checkers/test-sources/out-of-bounds.c
 create mode 100644 checkers/test-sources/read-through-null.c
 create mode 100644 checkers/test-sources/return-of-stack-address.c
 create mode 100644 checkers/test-sources/unconditional-file-leak.c

diff --git a/checkers/test-sources/conditional-leak.c b/checkers/test-sources/conditional-leak.c
new file mode 100644
index 0000000..2ab46f5
--- /dev/null
+++ b/checkers/test-sources/conditional-leak.c
@@ -0,0 +1,17 @@
+#include <stdlib.h>
+
+void test ()
+{
+  void *ptr_1;
+  void *ptr_2;
+
+  ptr_1 = malloc (64);
+  if (!ptr_1)
+    return;
+  ptr_2 = malloc (64);
+  if (!ptr_2)
+    return;
+
+  free (ptr_2);
+  free (ptr_1);
+}
diff --git a/checkers/test-sources/cpychecker-demo.c b/checkers/test-sources/cpychecker-demo.c
new file mode 100644
index 0000000..b379729
--- /dev/null
+++ b/checkers/test-sources/cpychecker-demo.c
@@ -0,0 +1,110 @@
+/*
+   Copyright 2011 David Malcolm <dmalcolm@redhat.com>
+   Copyright 2011 Red Hat, Inc.
+
+   This is free software: you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see
+   <http://www.gnu.org/licenses/>.
+*/
+
+/* Examples of mistakes made using the Python API */
+#include <Python.h>
+
+extern uint16_t htons(uint16_t hostshort);
+
+PyObject *
+socket_htons(PyObject *self, PyObject *args)
+{
+    unsigned long x1, x2;
+
+    if (!PyArg_ParseTuple(args, "i:htons", &x1)) {
+        return NULL;
+    }
+    x2 = (int)htons((short)x1);
+    return PyInt_FromLong(x2);
+}
+
+PyObject *
+not_enough_varargs(PyObject *self, PyObject *args)
+{
+   if (!PyArg_ParseTuple(args, "i")) {
+       return NULL;
+   }
+   Py_RETURN_NONE;
+}
+
+PyObject *
+too_many_varargs(PyObject *self, PyObject *args)
+{
+    int i, j;
+    if (!PyArg_ParseTuple(args, "i", &i, &j)) {
+	 return NULL;
+    }
+    Py_RETURN_NONE;
+}
+
+PyObject *
+kwargs_example(PyObject *self, PyObject *args, PyObject *kwargs)
+{
+    double x, y;
+    char *keywords[] = {"x", "y"};
+
+    if (!PyArg_ParseTupleAndKeywords(args, kwargs, "(ff):kwargs_example", keywords, &x, &y)) {
+	 return NULL;
+    }
+    Py_RETURN_NONE;
+}
+
+
+extern int convert_to_ssize(PyObject *, Py_ssize_t *);
+
+PyObject *
+buggy_converter(PyObject *self, PyObject *args)
+{
+    int i;
+
+    if (!PyArg_ParseTuple(args, "O&", convert_to_ssize, &i)) {
+        return NULL;
+    }
+
+    Py_RETURN_NONE;
+}
+
+PyObject *
+make_a_list_of_random_ints_badly(PyObject *self,
+                                 PyObject *args)
+{
+    PyObject *list, *item;
+    long count, i;
+
+    if (!PyArg_ParseTuple(args, "i", &count)) {
+         return NULL;
+    }
+
+    list = PyList_New(0);
+
+    for (i = 0; i < count; i++) {
+        item = PyLong_FromLong(random());
+        PyList_Append(list, item);
+    }
+
+    return list;
+}
+
+/*
+  PEP-7
+Local variables:
+c-basic-offset: 4
+indent-tabs-mode: nil
+End:
+*/
diff --git a/checkers/test-sources/divide-by-zero.c b/checkers/test-sources/divide-by-zero.c
new file mode 100644
index 0000000..f40692d
--- /dev/null
+++ b/checkers/test-sources/divide-by-zero.c
@@ -0,0 +1,4 @@
+int divide_by_zero (int i)
+{
+  return i / 0;
+}
diff --git a/checkers/test-sources/harmless.c b/checkers/test-sources/harmless.c
new file mode 100644
index 0000000..c29f0cc
--- /dev/null
+++ b/checkers/test-sources/harmless.c
@@ -0,0 +1,9 @@
+#include <stdio.h>
+
+int main (int argc, const char **argv)
+{
+  int i;
+  for (i = 0; i < argc; i++)
+    printf ("argv[%i]: %s\n", i, argv[i]);
+  return 0;
+}
diff --git a/checkers/test-sources/multiple-1.c b/checkers/test-sources/multiple-1.c
new file mode 100644
index 0000000..8d26c69
--- /dev/null
+++ b/checkers/test-sources/multiple-1.c
@@ -0,0 +1,6 @@
+extern int helper (int argc, const char **argv);
+
+int main (int argc, const char **argv)
+{
+  return helper (argc, argv);
+}
diff --git a/checkers/test-sources/multiple-2.c b/checkers/test-sources/multiple-2.c
new file mode 100644
index 0000000..a7a20ac
--- /dev/null
+++ b/checkers/test-sources/multiple-2.c
@@ -0,0 +1,9 @@
+#include <stdio.h>
+
+int helper (int argc, const char **argv)
+{
+  int i;
+  for (i = 0; i < argc; i++)
+    printf ("argv[%i]: %s\n", i, argv[i]);
+  return 0;
+}
diff --git a/checkers/test-sources/out-of-bounds.c b/checkers/test-sources/out-of-bounds.c
new file mode 100644
index 0000000..4137389
--- /dev/null
+++ b/checkers/test-sources/out-of-bounds.c
@@ -0,0 +1,6 @@
+int out_of_bounds (void)
+{
+  int arr[10];
+
+  return arr[15];
+}
diff --git a/checkers/test-sources/read-through-null.c b/checkers/test-sources/read-through-null.c
new file mode 100644
index 0000000..2f0450c
--- /dev/null
+++ b/checkers/test-sources/read-through-null.c
@@ -0,0 +1,4 @@
+int read_through_null (void)
+{
+  return *(int *)0;
+}
diff --git a/checkers/test-sources/return-of-stack-address.c b/checkers/test-sources/return-of-stack-address.c
new file mode 100644
index 0000000..66c8893
--- /dev/null
+++ b/checkers/test-sources/return-of-stack-address.c
@@ -0,0 +1,6 @@
+void *test (void)
+{
+  char tmp[16];
+
+  return tmp;
+}
diff --git a/checkers/test-sources/unconditional-file-leak.c b/checkers/test-sources/unconditional-file-leak.c
new file mode 100644
index 0000000..3c6655c
--- /dev/null
+++ b/checkers/test-sources/unconditional-file-leak.c
@@ -0,0 +1,10 @@
+#include <stdio.h>
+
+void test (const char *filename)
+{
+  int i;
+  FILE *f;
+  f = fopen (filename, "w");
+  for (i = 0; i < 10; i++)
+    fprintf (f, "%i: %i",  i,  i * i);
+}
-- 
1.8.5.3