HTTP/3: fixed NGX_HTTP_V3_VARLEN_INT_LEN value. #640
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After fixing ngx_http_v3_encode_varlen_int() in 400eb1b, NGX_HTTP_V3_VARLEN_INT_LEN retained the old value of 4, which is insufficient for the values over 1073741823 (1G - 1). The NGX_HTTP_V3_VARLEN_INT_LEN macro is used in ngx_http_v3_uni.c to format stream and frame types. Old buffer size is enough for formatting this data. Also, the macro is used in ngx_http_v3_filter_module.c to format output chunks and trailers. Considering output_buffers and proxy_buffer_size are below 1G in all realistic scenarios, the old buffer size is enough here as well.
pluknet
approved these changes
Apr 18, 2025
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For the record, this was found while compiling by gcc-14 with the following options: |
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After fixing ngx_http_v3_encode_varlen_int() in 400eb1b, NGX_HTTP_V3_VARLEN_INT_LEN retained the old value of 4, which is insufficient for the values over 1073741823 (1G - 1).
The NGX_HTTP_V3_VARLEN_INT_LEN macro is used in ngx_http_v3_uni.c to format stream and frame types. Old buffer size is enough for formatting this data. Also, the macro is used in ngx_http_v3_filter_module.c to format output chunks and trailers. Considering output_buffers and proxy_buffer_size are below 1G in all realistic scenarios, the old buffer size is enough here as well.