From dd9964ae3aa947d5d3e987361e34d8ceaca06ac7 Mon Sep 17 00:00:00 2001
From: levlam <levlam@telegram.org>
Date: Fri, 21 Sep 2018 16:41:22 +0300
Subject: [PATCH] Don't crash on nullptr passed to td_json_client.

GitOrigin-RevId: b064ab5d839a5747d9bf1d289238fa77da219585
---
 td/telegram/td_json_client.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/td/telegram/td_json_client.cpp b/td/telegram/td_json_client.cpp
index 94f327d1..b83bab28 100644
--- a/td/telegram/td_json_client.cpp
+++ b/td/telegram/td_json_client.cpp
@@ -23,7 +23,7 @@ void td_json_client_destroy(void *client) {
 }
 
 void td_json_client_send(void *client, const char *request) {
-  static_cast<td::ClientJson *>(client)->send(td::Slice(request));
+  static_cast<td::ClientJson *>(client)->send(td::Slice(request == nullptr ? "" : request));
 }
 
 const char *td_json_client_receive(void *client, double timeout) {
@@ -36,7 +36,7 @@ const char *td_json_client_receive(void *client, double timeout) {
 }
 
 const char *td_json_client_execute(void *client, const char *request) {
-  auto slice = static_cast<td::ClientJson *>(client)->execute(td::Slice(request));
+  auto slice = static_cast<td::ClientJson *>(client)->execute(td::Slice(request == nullptr ? "" : request));
   if (slice.empty()) {
     return nullptr;
   } else {