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Code Issues Releases Wiki Activity

ircd::server: Use pessimistic buffer minimum condition to fail faster.

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This commit is contained in:
Jason Volk 2019-11-30 14:20:05 -08:00
parent 33a2d3ff6d
commit 41545edef2
1 changed files with 4 additions and 2 deletions
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6
ircd/server.cc
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@ -3770,7 +3770,8 @@ const
const auto &req{*request}; const auto &req{*request};
const auto &content{req.in.content}; const auto &content{req.in.content};
if(unlikely(size(content) <= state.content_read)) static const size_t buf_min {16};
if(unlikely(size(content) <= state.content_read + buf_min))
throw buffer_overrun throw buffer_overrun
{ {
"Content buffer of %zu bytes too small to read next chunk header", "Content buffer of %zu bytes too small to read next chunk header",
@ -3865,7 +3866,8 @@ const
}; };
assert(head_max >= head_offset); assert(head_max >= head_offset);
if(unlikely(head_max - head_offset <= 16)) static const size_t buf_min {16};
if(unlikely(head_max - head_offset <= buf_min))
throw buffer_overrun throw buffer_overrun
{ {
"Remaining head buffer of %zu bytes too small to read next chunk header", "Remaining head buffer of %zu bytes too small to read next chunk header",