From: Holger Schemel <info@artsoft.org>
Date: Sat, 5 Jan 2019 12:29:54 +0000 (+0100)
Subject: fixed network games playing empty level files that use level template
X-Git-Tag: 4.1.2.0~64
X-Git-Url: https://git.artsoft.org/?a=commitdiff_plain;h=0d6a00e7cdcb2f6e9a4eef1fad477e5d4d7282b2;p=rocksndiamonds.git

fixed network games playing empty level files that use level template
---

diff --git a/src/network.c b/src/network.c
index 6c1f4c6d..ded92acf 100644
--- a/src/network.c
+++ b/src/network.c
@@ -870,7 +870,11 @@ static void Handle_OP_LEVEL_FILE(void)
   if (hasPathSeparator(file_info->basename))
     Error(ERR_EXIT, "protocol error: invalid filename from network client");
 
-  getNetworkBufferFile(read_buffer, file_info->filename);
+  int num_bytes = getNetworkBufferFile(read_buffer, file_info->filename);
+
+  // if received level file is empty, remove it (as being non-existent)
+  if (num_bytes == 0)
+    remove(file_info->filename);
 
   use_custom_template = getNetworkBuffer8BitInteger(read_buffer);
   if (use_custom_template)
@@ -884,6 +888,10 @@ static void Handle_OP_LEVEL_FILE(void)
       Error(ERR_EXIT, "protocol error: invalid filename from network client");
 
     getNetworkBufferFile(read_buffer, tmpl_info->filename);
+
+    // if received level file is empty, use level template file instead
+    if (num_bytes == 0)
+      setString(&file_info->filename,  tmpl_info->filename);
   }
 
   network_level.leveldir_identifier = leveldir_identifier;