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From 21f532975f59f0c156c76cc739f5a93f57d8f6cb Mon Sep 17 00:00:00 2001
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From: Mark Dufour <m.dufour@kopano.com>
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Date: Tue, 14 Feb 2017 10:48:30 +0100
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Subject: [PATCH] [Coverity] fix issue reported for
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SWIG_Python_ConvertFunctionPtr
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Fix Coverity issue reported for SWIG_Python_ConvertFunctionPtr:
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"Execution cannot reach this statement: *ptr = vptr;"
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Because if 'ty' is null, then desc becomes null and we return with
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SWIG_ERROR. So 'ty' cannot be null at 'if (ty)'.
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---
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Lib/python/pyrun.swg | 21 +++++++++------------
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1 file changed, 9 insertions(+), 12 deletions(-)
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diff --git a/Lib/python/pyrun.swg b/Lib/python/pyrun.swg
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index ab1237f62..939a69204 100644
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--- a/Lib/python/pyrun.swg
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+++ b/Lib/python/pyrun.swg
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@@ -1287,25 +1287,22 @@ SWIG_Python_ConvertFunctionPtr(PyObject *obj, void **ptr, swig_type_info *ty) {
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return SWIG_ConvertPtr(obj, ptr, ty, 0);
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} else {
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void *vptr = 0;
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-
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+ swig_cast_info *tc;
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+
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/* here we get the method pointer for callbacks */
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const char *doc = (((PyCFunctionObject *)obj) -> m_ml -> ml_doc);
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const char *desc = doc ? strstr(doc, "swig_ptr: ") : 0;
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if (desc)
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desc = ty ? SWIG_UnpackVoidPtr(desc + 10, &vptr, ty->name) : 0;
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- if (!desc)
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+ if (!desc)
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return SWIG_ERROR;
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- if (ty) {
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- swig_cast_info *tc = SWIG_TypeCheck(desc,ty);
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- if (tc) {
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- int newmemory = 0;
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- *ptr = SWIG_TypeCast(tc,vptr,&newmemory);
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- assert(!newmemory); /* newmemory handling not yet implemented */
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- } else {
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- return SWIG_ERROR;
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- }
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+ tc = SWIG_TypeCheck(desc,ty);
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+ if (tc) {
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+ int newmemory = 0;
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+ *ptr = SWIG_TypeCast(tc,vptr,&newmemory);
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+ assert(!newmemory); /* newmemory handling not yet implemented */
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} else {
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- *ptr = vptr;
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+ return SWIG_ERROR;
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}
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return SWIG_OK;
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}
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--
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2.14.3
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