From: Nick Mathewson <nickm@torproject.org>
Date: Wed, 13 Aug 2014 14:31:31 +0000 (-0400)
Subject: Add a simple coccinelle script to replace malloc->calloc
X-Git-Tag: tor-0.2.6.1-alpha~208^2~3
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5da821a8a3cfffc18f5a656852d98e69cff5dd8f;p=thirdparty%2Ftor.git

Add a simple coccinelle script to replace malloc->calloc

Coccinelle is a semantic patching tool that can automatically change
C code via semantic patching.

This script also replaces realloc with reallocarray as appropriate.
---

diff --git a/scripts/coccinelle/calloc.cocci b/scripts/coccinelle/calloc.cocci
new file mode 100644
index 0000000000..8a295eb4fd
--- /dev/null
+++ b/scripts/coccinelle/calloc.cocci
@@ -0,0 +1,20 @@
+// Use calloc or realloc as appropriate instead of multiply-and-alloc
+
+@malloc_to_calloc@
+expression a,b;
+@@
+- tor_malloc(a * b)
++ tor_calloc(a, b)
+
+@malloc_zero_to_calloc@
+expression a, b;
+@@
+- tor_malloc_zero(a * b)
++ tor_calloc(a, b)
+
+@realloc_to_reallocarray@
+expression a, b;
+expression p;
+@@
+- tor_realloc(p, a * b)
++ tor_reallocarray(p, a, b)