From 4dcc33a770025f22095446266da18ba5521ad4fb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Love=20H=C3=B6rnquist=20=C3=85strand?= <lha@kth.se>
Date: Sat, 8 Dec 2007 07:35:17 +0000
Subject: [PATCH] (_hx509_revoke_ref): new function.

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@22214 ec53bebd-3082-4978-b11e-865c3cabbd6b
---
 lib/hx509/revoke.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/lib/hx509/revoke.c b/lib/hx509/revoke.c
index c209b97c2..2ab981655 100644
--- a/lib/hx509/revoke.c
+++ b/lib/hx509/revoke.c
@@ -52,6 +52,7 @@ struct revoke_ocsp {
 
 
 struct hx509_revoke_ctx_data {
+    unsigned ref;
     struct {
 	struct revoke_crl *val;
 	size_t len;
@@ -69,6 +70,7 @@ hx509_revoke_init(hx509_context context, hx509_revoke_ctx *ctx)
     if (*ctx == NULL)
 	return ENOMEM;
 
+    (*ctx)->ref = 1;
     (*ctx)->crls.len = 0;
     (*ctx)->crls.val = NULL;
     (*ctx)->ocsps.len = 0;
@@ -77,6 +79,17 @@ hx509_revoke_init(hx509_context context, hx509_revoke_ctx *ctx)
     return 0;
 }
 
+hx509_revoke_ctx
+_hx509_revoke_ref(hx509_revoke_ctx ctx)
+{
+    if (ctx->ref <= 0)
+	_hx509_abort("revoke ctx refcount <= 0");
+    ctx->ref++;
+    if (ctx->ref == 0)
+	_hx509_abort("revoke ctx refcount == 0");
+    return ctx;
+}
+
 static void
 free_ocsp(struct revoke_ocsp *ocsp)
 {
@@ -94,6 +107,11 @@ hx509_revoke_free(hx509_revoke_ctx *ctx)
     if (ctx == NULL || *ctx == NULL)
 	return;
 
+    if ((*ctx)->ref <= 0)
+	_hx509_abort("revoke ctx refcount <= 0 on free");
+    if (--(*ctx)->ref > 0)
+	return;
+
     for (i = 0; i < (*ctx)->crls.len; i++) {
 	free((*ctx)->crls.val[i].path);
 	free_CRLCertificateList(&(*ctx)->crls.val[i].crl);