[tor-commits] [trunnel/master] It is not an error to set an array with allocated size 0 to have length 0.

[nickm at torproject.org]

commit 72da63f33808813869bfd7a99851da4307f34efb
Author: Nick Mathewson <nickm at torproject.org>
Date:   Mon Jul 11 16:26:18 2016 -0400

    It is not an error to set an array with allocated size 0 to have length 0.
---
 lib/trunnel/CodeGen.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/trunnel/CodeGen.py b/lib/trunnel/CodeGen.py
index 16047b3..69ba2e3 100644
--- a/lib/trunnel/CodeGen.py
+++ b/lib/trunnel/CodeGen.py
@@ -1488,7 +1488,7 @@ class AccessorFnGenerator(CodeGenerator):
                                &inp->{c_name}.n_, inp->{c_name}.elts_, newlen,
                                sizeof(inp->{c_name}.elts_[0]), {freefn},
                                &inp->trunnel_error_code_);
-                if (newptr == NULL)
+                if (newlen != 0 && newptr == NULL)
                   goto trunnel_alloc_failed;
                 inp->{c_name}.elts_ = newptr;
                 return 0;""", c_name=sva.c_name, freefn=freefn)