From 8c34f5f78eeddefd056205994c6d0b47f9c611e8 Mon Sep 17 00:00:00 2001
From: "Unknown W. Brackets" <checkins@unknownbrackets.org>
Date: Thu, 26 Dec 2013 13:53:34 -0800
Subject: [PATCH] Implement ioctl command 0x01d20001.

---
 Core/HLE/sceIo.cpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/Core/HLE/sceIo.cpp b/Core/HLE/sceIo.cpp
index 10864e21e0..cfae4d4b4a 100644
--- a/Core/HLE/sceIo.cpp
+++ b/Core/HLE/sceIo.cpp
@@ -2106,6 +2106,18 @@ int __IoIoctl(u32 id, u32 cmd, u32 indataPtr, u32 inlen, u32 outdataPtr, u32 out
 		}
 		break;
 
+	// Get current sector seek pos from UMD device file.
+	case 0x01d20001:
+		// TODO: Should work only for umd0:/, etc. not for ms0:/ or disc0:/.
+		// TODO: Should probably move this to something common between ISOFileSystem and VirtualDiscSystem.
+		INFO_LOG(SCEIO, "sceIoIoctl: Sector tell from file %i", id);
+		if (Memory::IsValidAddress(outdataPtr) && outlen >= 4) {
+			Memory::Write_U32((u32)pspFileSystem.GetSeekPos(f->handle), outdataPtr);
+		} else {
+			return SCE_KERNEL_ERROR_ERRNO_INVALID_ARGUMENT;
+		}
+		break;
+
 	// Read raw sectors from UMD device file.
 	case 0x01f30003:
 		// TODO: Should work only for umd0:/, etc. not for ms0:/ or disc0:/.