* context.h (CTX_OP_DATA_MAGIC): New macro.
(struct ctx_op_data): New member MAGIC.
* op-support.c (_gpgme_op_data_lookup): Initialize magic.
* gpgme.c (gpgme_result_unref, gpgme_result_ref): Check magic.
+2009-06-18 Marcus Brinkmann <marcus@g10code.de>
+
+ * context.h (CTX_OP_DATA_MAGIC): New macro.
+ (struct ctx_op_data): New member MAGIC.
+ * op-support.c (_gpgme_op_data_lookup): Initialize magic.
+ * gpgme.c (gpgme_result_unref, gpgme_result_ref): Check magic.
+
2009-06-16 Marcus Brinkmann <marcus@g10code.de>
* gpgme.c (gpgme_result_unref): Hot fix to release a lock.
} ctx_op_data_id_t;
+/* "gpgmeres" in ASCII. */
+#define CTX_OP_DATA_MAGIC 0x736572656d677067ULL
struct ctx_op_data
{
+ /* A magic word just to make sure people don't deallocate something
+ that ain't a result structure. */
+ unsigned long long magic;
+
/* The next element in the linked list, or NULL if this is the last
element. Used by op data structures linked into a context. */
struct ctx_op_data *next;
data = result - sizeof (struct ctx_op_data);
+ assert (data->magic == CTX_OP_DATA_MAGIC);
+
LOCK (result_ref_lock);
data->references++;
UNLOCK (result_ref_lock);
data = result - sizeof (struct ctx_op_data);
+ assert (data->magic == CTX_OP_DATA_MAGIC);
+
LOCK (result_ref_lock);
if (--data->references)
{
data = calloc (1, sizeof (struct ctx_op_data) + size);
if (!data)
return gpg_error_from_errno (errno);
+ data->magic = CTX_OP_DATA_MAGIC;
data->next = ctx->op_data;
data->type = type;
data->cleanup = cleanup;