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Merge #9798: Fix Issue #9775 (Check returned value of fopen)

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40f11f8 Fix for issue #9775. Added check for open() returning a NULL pointer. (kirit93)
This commit is contained in:
Wladimir J. van der Laan 2017-02-21 14:32:44 +01:00
commit 8ad31f9aa3
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1 changed files with 8 additions and 7 deletions
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15
src/util.cpp
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@ -214,12 +214,13 @@ void OpenDebugLog()
assert(vMsgsBeforeOpenLog); assert(vMsgsBeforeOpenLog);
boost::filesystem::path pathDebug = GetDataDir() / "debug.log"; boost::filesystem::path pathDebug = GetDataDir() / "debug.log";
fileout = fopen(pathDebug.string().c_str(), "a"); fileout = fopen(pathDebug.string().c_str(), "a");
if (fileout) setbuf(fileout, NULL); // unbuffered if (fileout) {
setbuf(fileout, NULL); // unbuffered
// dump buffered messages from before we opened the log // dump buffered messages from before we opened the log
while (!vMsgsBeforeOpenLog->empty()) { while (!vMsgsBeforeOpenLog->empty()) {
FileWriteStr(vMsgsBeforeOpenLog->front(), fileout); FileWriteStr(vMsgsBeforeOpenLog->front(), fileout);
vMsgsBeforeOpenLog->pop_front(); vMsgsBeforeOpenLog->pop_front();
}
} }
delete vMsgsBeforeOpenLog; delete vMsgsBeforeOpenLog;
@ -838,4 +839,4 @@ std::string CopyrightHolders(const std::string& strPrefix)
strCopyrightHolders += "\n" + strPrefix + "The Bitcoin Core developers"; strCopyrightHolders += "\n" + strPrefix + "The Bitcoin Core developers";
} }
return strCopyrightHolders; return strCopyrightHolders;
} }