DKIM: fix errorcheck in signing, lilbgcrypt version. Bug 2450

[exim.git] / src / src / pdkim / signing.c

diff --git a/src/src/pdkim/signing.c b/src/src/pdkim/signing.c
index aff3d90616bac6a3e677a4be2f327ba0c1a47f66..102e7bf5152738128eb6ac4b8b68df07e6ccecd9 100644 (file)
--- a/src/src/pdkim/signing.c
+++ b/src/src/pdkim/signing.c
@@ -412,8 +412,9 @@ if (  !(s1 = Ustrstr(CS privkey_pem, "-----BEGIN RSA PRIVATE KEY-----"))
 
 *s2 = '\0';
 
-if ((der.len = b64decode(s1, &der.data)) < 0)
+if ((rc = b64decode(s1, &der.data) < 0))
   return US"Bad PEM-DER b64 decode";
+der.len = rc;
 
 /* untangle asn.1 */