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RtlTimeToTimeFields Check for highest defined time_t value.

This commit is contained in:
Gliniak 2020-04-25 19:05:06 +02:00 committed by illusion
parent 64144ffdca
commit 3fd16eed90
1 changed files with 10 additions and 0 deletions
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10
src/xenia/kernel/xboxkrnl/xboxkrnl_rtl.cc
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@ -29,6 +29,8 @@
#define timegm _mkgmtime #define timegm _mkgmtime
#endif #endif
static constexpr uint64_t MAX_TIME64_T = 0x793406FFF;
namespace xe { namespace xe {
namespace kernel { namespace kernel {
namespace xboxkrnl { namespace xboxkrnl {
@ -514,6 +516,14 @@ void RtlTimeToTimeFields(lpqword_t time_ptr,
pointer_t<X_TIME_FIELDS> time_fields_ptr) { pointer_t<X_TIME_FIELDS> time_fields_ptr) {
int64_t time_ms = time_ptr.value() / 10000 - 11644473600000LL; int64_t time_ms = time_ptr.value() / 10000 - 11644473600000LL;
time_t timet = time_ms / 1000; time_t timet = time_ms / 1000;
// https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/localtime-s-localtime32-s-localtime64-s?view=vs-2019
// __time64_t structure
// allows dates to be expressed up through 23:59:59, January 18, 3001
if (uint64_t(timet) > MAX_TIME64_T) {
return;
}
struct tm* tm = gmtime(&timet); struct tm* tm = gmtime(&timet);
time_fields_ptr->year = tm->tm_year + 1900; time_fields_ptr->year = tm->tm_year + 1900;