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Add max-size check conditional

This commit is contained in:
Jack Andersen 2016-02-02 11:34:47 -10:00
parent 26af179ee8
commit 4adfa71c2f
2 changed files with 13 additions and 7 deletions
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7
lib/FileIOFILE.cpp
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@ -69,8 +69,11 @@ public:
} }
uint64_t write(const void* buf, uint64_t length) uint64_t write(const void* buf, uint64_t length)
{ {
if (FTell(fp) + length > m_maxWriteSize) if (m_maxWriteSize >= 0)
LogModule.report(LogVisor::FatalError, _S("write operation exceeds file's %" PRIi64 "-byte limit"), m_maxWriteSize); {
if (FTell(fp) + length > m_maxWriteSize)
LogModule.report(LogVisor::FatalError, _S("write operation exceeds file's %" PRIi64 "-byte limit"), m_maxWriteSize);
}
return fwrite(buf, 1, length, fp); return fwrite(buf, 1, length, fp);
} }
uint64_t copyFromDisc(IPartReadStream& discio, uint64_t length) uint64_t copyFromDisc(IPartReadStream& discio, uint64_t length)

13
lib/FileIOWin32.cpp
View File

@ -72,11 +72,14 @@ public:
} }
uint64_t write(const void* buf, uint64_t length) uint64_t write(const void* buf, uint64_t length)
{ {
LARGE_INTEGER li = {}; if (m_maxWriteSize >= 0)
LARGE_INTEGER res; {
SetFilePointerEx(fp, li, &res, FILE_CURRENT); LARGE_INTEGER li = {};
if (res.QuadPart + int64_t(length) > m_maxWriteSize) LARGE_INTEGER res;
LogModule.report(LogVisor::FatalError, _S("write operation exceeds file's %" PRIi64 "-byte limit"), m_maxWriteSize); SetFilePointerEx(fp, li, &res, FILE_CURRENT);
if (res.QuadPart + int64_t(length) > m_maxWriteSize)
LogModule.report(LogVisor::FatalError, _S("write operation exceeds file's %" PRIi64 "-byte limit"), m_maxWriteSize);
}
DWORD ret = 0; DWORD ret = 0;
WriteFile(fp, buf, length, &ret, nullptr); WriteFile(fp, buf, length, &ret, nullptr);