---------- Forwarded message ----------
Date: Sun, 13 Sep 2009 11:29:27 +0200 (CEST)
From: Julia Lawall <[email protected]>
Reply-To: [email protected]
To: [email protected], Rene Rydhof Hansen <[email protected]>,
    Gilles Muller - lip6 <[email protected]>, [email protected]
Subject: [PATCH] use of CMS_get1_ReceiptRequest

The function CMS_get1_ReceiptRequest can explicitly return 0 or -1 in the
case of error.  Therefore, the error checking code should check whether the
result is less than or equal to 0, and not just whether it is equal to
zero.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@expression@
expression list args;
@@

-   CMS_get1_ReceiptRequest(args) == 0
+   CMS_get1_ReceiptRequest(args) <= 0
    || ...

@expression@
expression list args;
@@

-   CMS_get1_ReceiptRequest(args) != 0
+   CMS_get1_ReceiptRequest(args) > 0
    || ...
// </smpl>

---

diff -u -p a/crypto/cms/cms_ess.c b/crypto/cms/cms_ess.c
--- a/crypto/cms/cms_ess.c 2008-04-01 18:29:42.000000000 +0200
+++ b/crypto/cms/cms_ess.c 2009-09-12 11:25:38.000000000 +0200
@@ -344,7 +344,7 @@ int cms_Receipt_verify(CMS_ContentInfo *
 
        /* Get original receipt request details */
 
-       if (!CMS_get1_ReceiptRequest(osi, &rr))
+       if (CMS_get1_ReceiptRequest(osi, &rr) <= 0)
                {
                CMSerr(CMS_F_CMS_RECEIPT_VERIFY, CMS_R_NO_RECEIPT_REQUEST);
                goto err;
@@ -385,7 +385,7 @@ ASN1_OCTET_STRING *cms_encode_Receipt(CM
 
        /* Get original receipt request details */
 
-       if (!CMS_get1_ReceiptRequest(si, &rr))
+       if (CMS_get1_ReceiptRequest(si, &rr) <= 0)
                {
                CMSerr(CMS_F_CMS_ENCODE_RECEIPT, CMS_R_NO_RECEIPT_REQUEST);
                goto err;
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______________________________________________________________________
OpenSSL Project                                 http://www.openssl.org
Development Mailing List                       [email protected]
Automated List Manager                           [email protected]

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