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authorTom Sepez <tsepez@chromium.org>2016-02-19 14:22:56 -0800
committerTom Sepez <tsepez@chromium.org>2016-02-19 14:22:56 -0800
commit78353d5dbc0b0c9b2d6946005439a51efa7d108c (patch)
tree2d0048714b8630cd22b2f8e3129318ed93ee945d /fpdfsdk/src/fsdk_baseform.cpp
parent711046ac7043ebeec2b0c9a5eb168418cd07a876 (diff)
downloadpdfium-78353d5dbc0b0c9b2d6946005439a51efa7d108c.tar.xz
Use safe arithmentic in CFX_BinaryBuf::ExpandBuf.
Always call ExpandBuf(), and if it returns, we know the subsequent calculations won't overflow. Also use std::unique_ptr, and fix unintentional copies thus detected by its suppressed copy ctor in fsdk_baseform.cpp Also Remove unused CFX_BinaryBuf::TakeOver(), AppendFill(), CopyData(). Also remove operator= in favor of using <<, for similarity with std::ostream and friends. Also move ByteStringC methods to CFX_ByteTextBuf sub-class. Also re-order members, may pack tighter on 64-bits. R=thestig@chromium.org Review URL: https://codereview.chromium.org/1710403002 .
Diffstat (limited to 'fpdfsdk/src/fsdk_baseform.cpp')
-rw-r--r--fpdfsdk/src/fsdk_baseform.cpp10
1 files changed, 4 insertions, 6 deletions
diff --git a/fpdfsdk/src/fsdk_baseform.cpp b/fpdfsdk/src/fsdk_baseform.cpp
index 00ab6c2ef0..f05545a672 100644
--- a/fpdfsdk/src/fsdk_baseform.cpp
+++ b/fpdfsdk/src/fsdk_baseform.cpp
@@ -2461,7 +2461,6 @@ FX_BOOL CPDFSDK_InterForm::FDFToURLEncodedData(uint8_t*& pBuf,
return FALSE;
CFX_ByteTextBuf fdfEncodedData;
-
for (FX_DWORD i = 0; i < pFields->GetCount(); i++) {
CPDF_Dictionary* pField = pFields->GetDictAt(i);
if (!pField)
@@ -2473,14 +2472,13 @@ FX_BOOL CPDFSDK_InterForm::FDFToURLEncodedData(uint8_t*& pBuf,
CFX_WideString csWValue = PDF_DecodeText(csBValue);
CFX_ByteString csValue_b = CFX_ByteString::FromUnicode(csWValue);
- fdfEncodedData = fdfEncodedData << name_b.GetBuffer(name_b.GetLength());
+ fdfEncodedData << name_b.GetBuffer(name_b.GetLength());
name_b.ReleaseBuffer();
- fdfEncodedData = fdfEncodedData << "=";
- fdfEncodedData = fdfEncodedData
- << csValue_b.GetBuffer(csValue_b.GetLength());
+ fdfEncodedData << "=";
+ fdfEncodedData << csValue_b.GetBuffer(csValue_b.GetLength());
csValue_b.ReleaseBuffer();
if (i != pFields->GetCount() - 1)
- fdfEncodedData = fdfEncodedData << "&";
+ fdfEncodedData << "&";
}
nBufSize = fdfEncodedData.GetLength();