NVRAM backup decoding/encoding

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tknarr
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Joined: 28 Mar 2014
Posts: 5

PostPosted: Mon Jul 20, 2015 3:46    Post subject: NVRAM backup decoding/encoding Reply with quote
I needed to hack up a simple tool to decode an NVRAM backup file to text so I could see what was there, and in the process I wound up creating a matching tool to rebuild a backup file from the text. I haven't yet tried to upload the rebuilt backup to the router, but if I didn't edit the text I could build a new file that was byte-for-byte identical to the original backup so I'm pretty sure I got the structure right. It's C code but nothing fancy so it should compile anywhere:

https://github.com/tknarr/ddwrt-nvram-tools
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