macOS: Use user-friendly macOS version string (#5838)

* use user-friendly macOS version string rather than kernel version

* add build identifier string

---------

Co-authored-by: jcm <butt@butts.com>

src/Ryujinx.Common/SystemInfo/MacOSSystemInfo.cs

@@ -12,6 +12,13 @@ namespace Ryujinx.Common.SystemInfo
     {
         internal MacOSSystemInfo()
         {
+            if (SysctlByName("kern.osversion", out string buildRevision) != 0)
+            {
+                buildRevision = "Unknown Build";
+            }
+
+            OsDescription = $"macOS {Environment.OSVersion.Version} ({buildRevision}) ({RuntimeInformation.OSArchitecture})";
+
             string cpuName = GetCpuidCpuName();
 
             if (cpuName == null && SysctlByName("machdep.cpu.brand_string", out cpuName) != 0)

src/Ryujinx.HLE/FileSystem/VirtualFileSystem.cs

@@ -264,7 +264,16 @@ namespace Ryujinx.HLE.FileSystem
 
                 if (result.IsSuccess())
                 {
-                    Ticket ticket = new(ticketFile.Get.AsStream());
+                    // When reading a file from a Sha256PartitionFileSystem, you can't start a read in the middle
+                    // of the hashed portion (usually the first 0x200 bytes) of the file and end the read after
+                    // the end of the hashed portion, so we read the ticket file using a single read.
+                    byte[] ticketData = new byte[0x2C0];
+                    result = ticketFile.Get.Read(out long bytesRead, 0, ticketData);
+
+                    if (result.IsFailure() || bytesRead != ticketData.Length)
+                        continue;
+
+                    Ticket ticket = new(new MemoryStream(ticketData));
                     var titleKey = ticket.GetTitleKey(KeySet);
 
                     if (titleKey != null)