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Fix an almost certain buffer overflow

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This commit is contained in:
Erik Hofman 2018-10-10 09:24:02 +02:00
parent d7d37ae137
commit 43c201d9d0
1 changed files with 1 additions and 1 deletions

2
src/Main/locale.cxx
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@ -480,7 +480,7 @@ std::string FGLocale::localizedPrintf(const char* id, const char* resource, ...
std::string FGLocale::vlocalizedPrintf(const char* id, const char* resource, va_list args) std::string FGLocale::vlocalizedPrintf(const char* id, const char* resource, va_list args)
{ {
std::string format = getLocalizedString(id, resource); std::string format = getLocalizedString(id, resource);
int len = ::vsprintf(nullptr, format.c_str(), args); int len = ::vsnprintf(nullptr, 0, format.c_str(), args);
char* buf = (char*) alloca(len); char* buf = (char*) alloca(len);
::vsprintf(buf, format.c_str(), args); ::vsprintf(buf, format.c_str(), args);
return std::string(buf); return std::string(buf);