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hle: Improve safety (#2778)

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* timezone: Make timezone implementation safe

* hle: Do not use TrimEnd to parse ASCII strings

This adds an util that handle reading an ASCII string in a safe way.
Previously it was possible to read malformed data that could cause
various undefined behaviours in multiple services.

* hid: Remove an useless unsafe modifier on keyboard update

* Address gdkchan's comment

* Address gdkchan's comment
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Mary 2021-10-25 00:13:20 +02:00 • committed by GitHub
parent b4dc33efc2
commit 51fa1b2cb0
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9 changed files with 141 additions and 172 deletions
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Ryujinx.HLE/HOS/Services/Time/ITimeServiceManager.cs
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@ -116,7 +116,7 @@ namespace Ryujinx.HLE.HOS.Services.Time
// SetupTimeZoneManager(nn::time::LocationName location_name, nn::time::SteadyClockTimePoint timezone_update_timepoint, u32 total_location_name_count, nn::time::TimeZoneRuleVersion timezone_rule_version, buffer<nn::time::TimeZoneBinary, 0x21> timezone_binary)
public ResultCode SetupTimeZoneManager(ServiceCtx context)
{
string locationName = Encoding.ASCII.GetString(context.RequestData.ReadBytes(0x24)).TrimEnd('\0');
string locationName = StringUtils.ReadInlinedAsciiString(context.RequestData, 0x24);
SteadyClockTimePoint timeZoneUpdateTimePoint = context.RequestData.ReadStruct<SteadyClockTimePoint>();
uint totalLocationNameCount = context.RequestData.ReadUInt32();
UInt128 timeZoneRuleVersion = context.RequestData.ReadStruct<UInt128>();