linux-kernel - [PATCH] scripts/coccinelle: address test is always true

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-Id: <1335032098-4966-1-git-send-email-Julia.Lawall@lip6.fr>
Date:	Sat, 21 Apr 2012 20:14:57 +0200
From:	Julia Lawall <Julia.Lawall@...6.fr>
To:	cocci@...u.dk, mmarek@...e.cz, linux-kernel@...r.kernel.org
Cc:	kernel-janitors@...r.kernel.org
Subject: [PATCH] scripts/coccinelle: address test is always true

From: Julia Lawall <Julia.Lawall@...6.fr>

Signed-off-by: Julia Lawall <Julia.Lawall@...6.fr>

---
 scripts/coccinelle/misc/noderef.cocci |   65 ++++++++++++++++++++++++++++++++++
 1 file changed, 65 insertions(+)

diff --git a/scripts/coccinelle/misc/noderef.cocci b/scripts/coccinelle/misc/noderef.cocci
new file mode 100644
index 0000000..c170721
--- /dev/null
+++ b/scripts/coccinelle/misc/noderef.cocci
@@ -0,0 +1,65 @@
+/// sizeof when applied to a pointer typed expression gives the size of
+/// the pointer
+///
+// Confidence: High
+// Copyright: (C) 2012 Julia Lawall, INRIA/LIP6.  GPLv2.
+// Copyright: (C) 2012 Gilles Muller, INRIA/LiP6.  GPLv2.
+// URL: http://coccinelle.lip6.fr/
+// Comments:
+// Options: -no_includes -include_headers
+
+virtual org
+virtual report
+virtual context
+virtual patch
+
+@...ends on patch@
+expression *x;
+expression f;
+type T;
+@@
+
+(
+x = <+... sizeof(
+- x
++ *x
+   ) ...+>
+|
+f(...,(T)(x),...,sizeof(
+- x
++ *x
+   ),...)
+|
+f(...,sizeof(x),...,(T)(
+- x
++ *x
+   ),...)
+)
+
+@r depends on !patch@
+expression *x;
+expression f;
+position p;
+type T;
+@@
+
+(
+*x = <+... sizeof@p(x) ...+>
+|
+*f(...,(T)(x),...,sizeof@p(x),...)
+|
+*f(...,sizeof@p(x),...,(T)(x),...)
+)
+
+@...ipt:python depends on org@
+p << r.p;
+@@
+
+cocci.print_main("application of sizeof to pointer",p)
+
+@...ipt:python depends on report@
+p << r.p;
+@@
+
+msg = "ERROR: application of sizeof to pointer"
+coccilib.report.print_report(p[0],msg)

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/