Enable address sanitizer in linux/clang build

Elim some leaks by initializing PJ.destructor in PJ_ob_tran.c properly
Avoid tests bombing when built with address sanitizer: Repair memory leak in test228.c
Avoid tests bombing when built with address sanitizer: Repair memory leak in multistresstest.c

4 files changed, 12 insertions, 8 deletions

diff --git a/src/PJ_ob_tran.c b/src/PJ_ob_tran.c
index 793ace38..cd6f72db 100644
--- a/src/PJ_ob_tran.c
+++ b/src/PJ_ob_tran.c
@@ -84,13 +84,12 @@ static LP t_inverse(XY xy, PJ *P) {             /* spheroid */
 static void *destructor(PJ *P, int errlev) {
     if (0==P)
         return 0;
-
     if (0==P->opaque)
         return pj_default_destructor (P, errlev);
-
+        
     if (P->opaque->link)
         P->opaque->link->destructor (P->opaque->link, errlev);
-
+        
     return pj_default_destructor(P, errlev);
 }
 
@@ -166,12 +165,14 @@ PJ *PROJECTION(ob_tran) {
 
     struct pj_opaque *Q = pj_calloc (1, sizeof (struct pj_opaque));
     if (0==Q)
-        return pj_default_destructor(P, ENOMEM);
-    P->opaque = Q;
+        return destructor(P, ENOMEM);
 
-    if (0 != P->es)
-        return pj_default_destructor(P, PJD_ERR_ELLIPSOIDAL_UNSUPPORTED);
+    P->opaque = Q;
+    P->destructor = destructor;
     
+    if (0 != P->es)
+        return destructor(P, PJD_ERR_ELLIPSOIDAL_UNSUPPORTED);
+
     /* get name of projection to be translated */
     if (!(name = pj_param(P->ctx, P->params, "so_proj").s))
         return destructor(P, PJD_ERR_NO_ROTATION_PROJ);
diff --git a/src/multistresstest.c b/src/multistresstest.c
index 8fb764e2..ddbbb033 100644
--- a/src/multistresstest.c
+++ b/src/multistresstest.c
@@ -363,6 +363,7 @@ static int do_main(void)
         {
             printf( "Unable to translate:\n%s\n", test->src_def );
             test->skip = 1;
+            pj_free (dst_pj);
             continue;
         }
 
@@ -370,6 +371,7 @@ static int do_main(void)
         {
             printf( "Unable to translate:\n%s\n", test->dst_def );
             test->skip = 1;
+            pj_free (src_pj);
             continue;
         }
         
diff --git a/src/pj_malloc.c b/src/pj_malloc.c
index 9c69257f..75d05378 100644
--- a/src/pj_malloc.c
+++ b/src/pj_malloc.c
@@ -161,7 +161,6 @@ void *pj_default_destructor (PJ *P, int errlev) {   /* Destructor */
     if (0==P)
         return 0;
     
-
     /* free grid lists */
     pj_dealloc( P->gridlist );
     pj_dealloc( P->vgridlist_geoid );
diff --git a/src/test228.c b/src/test228.c
index 1f3d04e8..94f0ec08 100644
--- a/src/test228.c
+++ b/src/test228.c
@@ -54,6 +54,8 @@ static void* thread_main(void* unused)
         assert(fabs(y - 49.999396034285531698) < 1e-15);
     }
 
+    pj_free (p_OSGB36_proj);
+    pj_free (p_WGS84_proj);
     return NULL;
 }