maxmustermann/dogecoin
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Fix a use-after-free problem in initialization (#1920)

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Don't store the result of c_str().

Luckily, this only affects logging, though it could crash or leak
sensitive data to the log in rare cases.
This commit is contained in:
Wladimir J. van der Laan 2012-10-12 03:09:05 +02:00
parent 16f3618c13
commit 22bb049011
1 changed files with 6 additions and 6 deletions
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12
src/init.cpp
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@ -440,7 +440,7 @@ bool AppInit2()
// ********************************************************* Step 4: application initialization: dir lock, daemonize, pidfile, debug log
const char* pszDataDir = GetDataDir().string().c_str();
std::string strDataDir = GetDataDir().string();
// Make sure only a single Bitcoin process is using the data directory.
boost::filesystem::path pathLockFile = GetDataDir() / ".lock";
@ -448,7 +448,7 @@ bool AppInit2()
if (file) fclose(file);
static boost::interprocess::file_lock lock(pathLockFile.string().c_str());
if (!lock.try_lock())
return InitError(strprintf(_("Cannot obtain a lock on data directory %s. Bitcoin is probably already running."), pszDataDir));
return InitError(strprintf(_("Cannot obtain a lock on data directory %s. Bitcoin is probably already running."), strDataDir.c_str()));
#if !defined(WIN32) && !defined(QT_GUI)
if (fDaemon)
@ -480,7 +480,7 @@ bool AppInit2()
if (!fLogTimestamps)
printf("Startup time: %s\n", DateTimeStrFormat("%x %H:%M:%S", GetTime()).c_str());
printf("Default data directory %s\n", GetDefaultDataDir().string().c_str());
printf("Used data directory %s\n", pszDataDir);
printf("Used data directory %s\n", strDataDir.c_str());
std::ostringstream strErrors;
if (fDaemon)
@ -496,7 +496,7 @@ bool AppInit2()
{
string msg = strprintf(_("Error initializing database environment %s!"
" To recover, BACKUP THAT DIRECTORY, then remove"
" everything from it except for wallet.dat."), pszDataDir);
" everything from it except for wallet.dat."), strDataDir.c_str());
return InitError(msg);
}
@ -515,7 +515,7 @@ bool AppInit2()
string msg = strprintf(_("Warning: wallet.dat corrupt, data salvaged!"
" Original wallet.dat saved as wallet.{timestamp}.bak in %s; if"
" your balance or transactions are incorrect you should"
" restore from a backup."), pszDataDir);
" restore from a backup."), strDataDir.c_str());
uiInterface.ThreadSafeMessageBox(msg, _("Bitcoin"), CClientUIInterface::OK | CClientUIInterface::ICON_EXCLAMATION | CClientUIInterface::MODAL);
}
if (r == CDBEnv::RECOVER_FAIL)
@ -634,7 +634,7 @@ bool AppInit2()
{
string msg = strprintf(_("Error initializing database environment %s!"
" To recover, BACKUP THAT DIRECTORY, then remove"
" everything from it except for wallet.dat."), pszDataDir);
" everything from it except for wallet.dat."), strDataDir.c_str());
return InitError(msg);
}