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From beed138222421a2eb4212d83cb889404bd7efc49 Mon Sep 17 00:00:00 2001
From: Sergei Trofimovich <slyich@gmail.com>
Date: Wed, 23 Mar 2022 07:27:05 +0000
Subject: [PATCH] auditswig.i: avoid setter generation for audit_rule_data::buf
As it's a flexible array generated code was never safe to use.
With kernel's https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ed98ea2128b6fd83bce13716edf8f5fe6c47f574
change it's a build failure now:
audit> audit_wrap.c:5010:15: error: invalid use of flexible array member
audit> 5010 | arg1->buf = (char [])(char *)memcpy(malloc((size)*sizeof(char)), (const char *)(arg2), sizeof(char)*(size));
audit> | ^
Let's avoid setter generation entirely.
Closes: https://github.com/linux-audit/audit-userspace/issues/252
---
bindings/swig/src/auditswig.i | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/bindings/swig/src/auditswig.i b/bindings/swig/src/auditswig.i
index 21aafca31..9a2c5661d 100644
--- a/bindings/swig/src/auditswig.i
+++ b/bindings/swig/src/auditswig.i
@@ -39,6 +39,10 @@ signed
#define __attribute(X) /*nothing*/
typedef unsigned __u32;
typedef unsigned uid_t;
+/* Sidestep SWIG's limitation of handling c99 Flexible arrays by not:
+ * generating setters against them: https://github.com/swig/swig/issues/1699
+ */
+%ignore audit_rule_data::buf;
%include "/usr/include/linux/audit.h"
#define __extension__ /*nothing*/
%include <stdint.i>
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