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Fix cbuf running out of bounds (#348)

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This commit is contained in:
Ivan Grokhotkov 2015-09-13 22:45:00 +03:00
parent a49dd45538
commit 2a297ca171
1 changed files with 1 additions and 1 deletions
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cores/esp8266/cbuf.h
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@ -95,7 +95,7 @@ class cbuf {
size_t bytes_available = room();
size_t size_to_write = (size < bytes_available) ? size : bytes_available;
size_t size_written = size_to_write;
if(_end > _begin && size_to_write > (size_t)(_bufend - _end)) {
if(_end >= _begin && size_to_write > (size_t)(_bufend - _end)) {
size_t top_size = _bufend - _end;
memcpy(_end, src, top_size);
_end = _buf;