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author | Joel Bodenmann <joel@seriouslyembedded.com> | 2015-08-14 18:55:36 +0200 |
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committer | Joel Bodenmann <joel@seriouslyembedded.com> | 2015-08-14 18:55:36 +0200 |
commit | 668257c87262f044ff3858224ba0646f690cd706 (patch) | |
tree | 9d15b5868b219935918e99e25d1c15d238375df4 | |
parent | 03bc3f25a7425af6255d023fc837cc8be1453e8d (diff) | |
download | uGFX-668257c87262f044ff3858224ba0646f690cd706.tar.gz uGFX-668257c87262f044ff3858224ba0646f690cd706.tar.bz2 uGFX-668257c87262f044ff3858224ba0646f690cd706.zip |
Prevent buffer overflow
-rw-r--r-- | src/gwin/gwin_textedit.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/gwin/gwin_textedit.c b/src/gwin/gwin_textedit.c index 4d1f93a6..f90666ff 100644 --- a/src/gwin/gwin_textedit.c +++ b/src/gwin/gwin_textedit.c @@ -104,6 +104,11 @@ static void _shiftTextRight(char* buffer, size_t bufferSize, size_t index, char // Add a new character else { + // Prevent buffer overflow + if (gw2obj->cursorPos >= gw2obj->bufferSize) { + return; + } + // Shift everything right from the cursor by one character. This includes the '\0'. Then inser the new character. _shiftTextRight(gw2obj->textBuffer, gw2obj->bufferSize, gw2obj->cursorPos++, pke->c[0]); } |