site.c, dh.c, secnet.h: Allow the dh `makeshared' method to fail.

[secnet] / site.c

diff --git a/site.c b/site.c
index 3b8f34d..4ac0bab 100644 (file)
--- a/site.c
+++ b/site.c
@@ -561,8 +561,9 @@ static _Bool set_new_transform(struct site *st, char *pk)
     }
 
     /* Generate the shared key */
-    st->dh->makeshared(st->dh->st,st->dhsecret,st->dh->len,pk,
-                      st->sharedsecret,st->sharedsecretlen);
+    if (!st->dh->makeshared(st->dh->st,st->dhsecret,st->dh->len,pk,
+                           st->sharedsecret,st->sharedsecretlen))
+       return False;
 
     /* Set up the transform */
     struct transform_if *generator=st->chosen_transform;