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-rw-r--r--core/fpdfapi/edit/cpdf_creator.cpp11
-rw-r--r--core/fpdfapi/parser/cpdf_parser.cpp41
-rw-r--r--core/fpdfapi/parser/cpdf_parser.h2
3 files changed, 25 insertions, 29 deletions
diff --git a/core/fpdfapi/edit/cpdf_creator.cpp b/core/fpdfapi/edit/cpdf_creator.cpp
index ceffa5077f..b347d45dce 100644
--- a/core/fpdfapi/edit/cpdf_creator.cpp
+++ b/core/fpdfapi/edit/cpdf_creator.cpp
@@ -336,23 +336,20 @@ bool CPDF_Creator::WriteOldIndirectObject(uint32_t objnum) {
if (!bExistInMap)
m_pDocument->DeleteIndirectObject(objnum);
} else {
- uint8_t* pBuffer;
- uint32_t size;
- m_pParser->GetIndirectBinary(objnum, pBuffer, size);
- if (!pBuffer)
+ std::vector<uint8_t> buffer = m_pParser->GetIndirectBinary(objnum);
+ if (buffer.empty())
return true;
if (object_type == CPDF_Parser::ObjectType::kCompressed) {
if (!m_Archive->WriteDWord(objnum) ||
!m_Archive->WriteString(" 0 obj ") ||
- !m_Archive->WriteBlock(pBuffer, size) ||
+ !m_Archive->WriteBlock(buffer.data(), buffer.size()) ||
!m_Archive->WriteString("\r\nendobj\r\n")) {
return false;
}
} else {
- if (!m_Archive->WriteBlock(pBuffer, size))
+ if (!m_Archive->WriteBlock(buffer.data(), buffer.size()))
return false;
}
- FX_Free(pBuffer);
}
return true;
}
diff --git a/core/fpdfapi/parser/cpdf_parser.cpp b/core/fpdfapi/parser/cpdf_parser.cpp
index 0f4da6e28f..eb59195aa2 100644
--- a/core/fpdfapi/parser/cpdf_parser.cpp
+++ b/core/fpdfapi/parser/cpdf_parser.cpp
@@ -1222,19 +1222,16 @@ FX_FILESIZE CPDF_Parser::GetObjectSize(uint32_t objnum) const {
return *it - offset;
}
-void CPDF_Parser::GetIndirectBinary(uint32_t objnum,
- uint8_t*& pBuffer,
- uint32_t& size) {
- pBuffer = nullptr;
- size = 0;
+std::vector<uint8_t> CPDF_Parser::GetIndirectBinary(uint32_t objnum) {
+ std::vector<uint8_t> buffer;
if (!IsValidObjectNumber(objnum))
- return;
+ return buffer;
if (GetObjectType(objnum) == ObjectType::kCompressed) {
CFX_RetainPtr<CPDF_StreamAcc> pObjStream =
GetObjectStream(m_ObjectInfo[objnum].pos);
if (!pObjStream)
- return;
+ return buffer;
int32_t offset = GetStreamFirst(pObjStream);
const uint8_t* pData = pObjStream->GetData();
@@ -1250,6 +1247,7 @@ void CPDF_Parser::GetIndirectBinary(uint32_t objnum,
if (thisnum != objnum)
continue;
+ size_t size = 0;
if (i == 1) {
size = totalsize - (thisoff + offset);
} else {
@@ -1258,19 +1256,19 @@ void CPDF_Parser::GetIndirectBinary(uint32_t objnum,
size = nextoff - thisoff;
}
- pBuffer = FX_Alloc(uint8_t, size);
- memcpy(pBuffer, pData + thisoff + offset, size);
- return;
+ buffer.resize(size);
+ memcpy(buffer.data(), pData + thisoff + offset, size);
+ break;
}
- return;
+ return buffer;
}
if (GetObjectType(objnum) != ObjectType::kNotCompressed)
- return;
+ return buffer;
FX_FILESIZE pos = m_ObjectInfo[objnum].pos;
if (pos == 0)
- return;
+ return buffer;
FX_FILESIZE SavedPos = m_pSyntax->GetPos();
m_pSyntax->SetPos(pos);
@@ -1279,30 +1277,30 @@ void CPDF_Parser::GetIndirectBinary(uint32_t objnum,
CFX_ByteString word = m_pSyntax->GetNextWord(&bIsNumber);
if (!bIsNumber) {
m_pSyntax->SetPos(SavedPos);
- return;
+ return buffer;
}
uint32_t parser_objnum = FXSYS_atoui(word.c_str());
if (parser_objnum && parser_objnum != objnum) {
m_pSyntax->SetPos(SavedPos);
- return;
+ return buffer;
}
word = m_pSyntax->GetNextWord(&bIsNumber);
if (!bIsNumber) {
m_pSyntax->SetPos(SavedPos);
- return;
+ return buffer;
}
if (m_pSyntax->GetKeyword() != "obj") {
m_pSyntax->SetPos(SavedPos);
- return;
+ return buffer;
}
auto it = m_SortedOffset.find(pos);
if (it == m_SortedOffset.end() || ++it == m_SortedOffset.end()) {
m_pSyntax->SetPos(SavedPos);
- return;
+ return buffer;
}
FX_FILESIZE nextoff = *it;
@@ -1332,11 +1330,12 @@ void CPDF_Parser::GetIndirectBinary(uint32_t objnum,
nextoff = m_pSyntax->GetPos();
}
- size = (uint32_t)(nextoff - pos);
- pBuffer = FX_Alloc(uint8_t, size);
+ size_t size = (uint32_t)(nextoff - pos);
+ buffer.resize(size);
m_pSyntax->SetPos(pos);
- m_pSyntax->ReadBlock(pBuffer, size);
+ m_pSyntax->ReadBlock(buffer.data(), size);
m_pSyntax->SetPos(SavedPos);
+ return buffer;
}
std::unique_ptr<CPDF_Object> CPDF_Parser::ParseIndirectObjectAt(
diff --git a/core/fpdfapi/parser/cpdf_parser.h b/core/fpdfapi/parser/cpdf_parser.h
index 3acdbbfa6f..4d78d7052f 100644
--- a/core/fpdfapi/parser/cpdf_parser.h
+++ b/core/fpdfapi/parser/cpdf_parser.h
@@ -91,7 +91,7 @@ class CPDF_Parser {
FX_FILESIZE GetObjectOffset(uint32_t objnum) const;
FX_FILESIZE GetObjectSize(uint32_t objnum) const;
- void GetIndirectBinary(uint32_t objnum, uint8_t*& pBuffer, uint32_t& size);
+ std::vector<uint8_t> GetIndirectBinary(uint32_t objnum);
int GetFileVersion() const { return m_FileVersion; }
bool IsXRefStream() const { return m_bXRefStream; }