From 7e388fb2bc784568734592dcb2e863dfa061bed4 Mon Sep 17 00:00:00 2001
From: Marvin W <git@larma.de>
Date: Tue, 18 Apr 2017 17:55:20 +0200
Subject: signal-protocol/omemo: fix null-pointer issues

Fixes #44 and #58
---
 plugins/signal-protocol/src/signal_helper.c | 38 ++++++++++++++++++++++++++---
 1 file changed, 34 insertions(+), 4 deletions(-)

(limited to 'plugins/signal-protocol/src/signal_helper.c')

diff --git a/plugins/signal-protocol/src/signal_helper.c b/plugins/signal-protocol/src/signal_helper.c
index d13b9c95..5cbf2ce2 100644
--- a/plugins/signal-protocol/src/signal_helper.c
+++ b/plugins/signal-protocol/src/signal_helper.c
@@ -3,14 +3,30 @@
 
 #include <gcrypt.h>
 
-signal_protocol_address* signal_protocol_address_new() {
+signal_type_base* signal_type_ref_vapi(signal_type_base* instance) {
+    g_return_val_if_fail(instance != NULL, NULL);
+    signal_type_ref(instance);
+    return instance;
+}
+
+signal_type_base* signal_type_unref_vapi(signal_type_base* instance) {
+    g_return_val_if_fail(instance != NULL, NULL);
+    signal_type_unref(instance);
+    return NULL;
+}
+
+signal_protocol_address* signal_protocol_address_new(const gchar* name, int32_t device_id) {
+    g_return_val_if_fail(name != NULL, NULL);
     signal_protocol_address* address = malloc(sizeof(signal_protocol_address));
-    address->name = 0;
-    address->device_id = 0;
+    address->device_id = NULL;
+    address->name = NULL;
+    signal_protocol_address_set_name(address, name);
+    signal_protocol_address_set_device_id(address, device_id);
     return address;
 }
 
 void signal_protocol_address_free(signal_protocol_address* ptr) {
+    g_return_if_fail(ptr != NULL);
     if (ptr->name) {
         g_free((void*)ptr->name);
     }
@@ -18,6 +34,8 @@ void signal_protocol_address_free(signal_protocol_address* ptr) {
 }
 
 void signal_protocol_address_set_name(signal_protocol_address* self, const gchar* name) {
+    g_return_if_fail(self != NULL);
+    g_return_if_fail(name != NULL);
     gchar* n = g_malloc(strlen(name)+1);
     memcpy(n, name, strlen(name));
     n[strlen(name)] = 0;
@@ -29,13 +47,25 @@ void signal_protocol_address_set_name(signal_protocol_address* self, const gchar
 }
 
 gchar* signal_protocol_address_get_name(signal_protocol_address* self) {
-    if (self->name == 0) return 0;
+    g_return_val_if_fail(self != NULL, NULL);
+    g_return_val_if_fail(self->name != NULL, 0);
     gchar* res = g_malloc(sizeof(char) * (self->name_len + 1));
     memcpy(res, self->name, self->name_len);
     res[self->name_len] = 0;
     return res;
 }
 
+int32_t signal_protocol_address_get_device_id(signal_protocol_address* self) {
+    g_return_val_if_fail(self != NULL, NULL);
+    return self->device_id;
+}
+
+void signal_protocol_address_set_device_id(signal_protocol_address* self, int32_t device_id) {
+    g_return_if_fail(self != NULL);
+    self->device_id = device_id;
+}
+
+
 session_pre_key* session_pre_key_new(uint32_t pre_key_id, ec_key_pair* pair, int* err) {
     session_pre_key* res;
     *err = session_pre_key_create(&res, pre_key_id, pair);
-- 
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