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nanocoap: Make coap_block_finish more resilient #20000

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nanocoap: Make coap_block_finish more resilient #20000

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Commits on Oct 19, 2023

  1. nanocoap: Split option finding from coap_find_option 

    This adds an internal function to find options in a CoAP packet without
modifying the coap_pkt_t struct
    @bergzand
    bergzand committed Oct 19, 2023
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  2. nanocoap: Make coap_block_finish more resilient 

    This API change removes the error prone nature of coap_block_finish and
related functions. Before this change the position of the block-wise
options in the coap packet buffer was not allowed to change or the
coap_block_finish function would update the wrong byte in the packet
buffer.

After this change the block option is looked up dynamically from the
packet buffer, ensuring that if the position got changed the function
would still behave correctly.
    @bergzand
    bergzand committed Oct 19, 2023
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  3. examples/gcoap_block_server: Update to new block api

    @bergzand
    bergzand committed Oct 19, 2023
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  4. gcoap/dns: Update to new block api

    @bergzand
    bergzand committed Oct 19, 2023
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  5. gcoap/fileserver: Update to new block api

    @bergzand
    bergzand committed Oct 19, 2023
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