arduino/esp8266
1
0
Fork 0
mirror of https://github.com/esp8266/Arduino.git synced 2025-06-07 16:23:38 +03:00
Code

Fix cbuf running out of bounds (#348)

Browse Source
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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
cores/esp8266/cbuf.h
View File

@ -95,7 +95,7 @@ class cbuf {
size_t bytes_available = room(); size_t bytes_available = room();
size_t size_to_write = (size < bytes_available) ? size : bytes_available; size_t size_to_write = (size < bytes_available) ? size : bytes_available;
size_t size_written = size_to_write; 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; size_t top_size = _bufend - _end;
memcpy(_end, src, top_size); memcpy(_end, src, top_size);
_end = _buf; _end = _buf;