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Re: [lwip-users] httpserver_raw and custom files in SD card

From: Emiliano Idà
Subject: Re: [lwip-users] httpserver_raw and custom files in SD card
Date: Thu, 18 Apr 2013 21:04:09 +0200

finally, i made it. 
I suggest a couple of modifications in httpd.c to get the things work.
This one tells httpd to make a copy of each allocated buffer when calling 

#define HTTP_IS_DATA_VOLATILE(hs)   ((hs)->ssi ? TCP_WRITE_FLAG_COPY : 

The next one fixes a (possible) bug in http_init_file function
If the file is a custom file, we have to tell httpd that the file buffer still 
has to be filled, so we myst set:
hs->left = 0 
instead of 
hs->left = file->len

     hs->handle = file;
     hs->file = (char*)file->data;
     LWIP_ASSERT("File length must be positive!", (file->len >= 0));
-    hs->left = file->len;
+       if (file->is_custom_file == 0)
+        hs->left = file->len;
+       else 
+        hs->left = 0;
     hs->retries = 0;

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