From c7ccb62e6cad203fe425e1cdc0e4a67dfbd09749 Mon Sep 17 00:00:00 2001
From: Kelvin Sherlock <ksherlock@gmail.com>
Date: Sat, 16 Feb 2013 16:11:10 -0500
Subject: [PATCH] OS::GetEOF

---
 toolbox/os.cpp      | 32 ++++++++++++++++++++++++++++++++
 toolbox/os.h        |  1 +
 toolbox/toolbox.cpp |  5 +++++
 3 files changed, 38 insertions(+)

diff --git a/toolbox/os.cpp b/toolbox/os.cpp
index 541ed3f..285c552 100644
--- a/toolbox/os.cpp
+++ b/toolbox/os.cpp
@@ -207,6 +207,38 @@ namespace OS
 		return d0;
 	}
 
+	uint16_t GetEOF(uint16_t trap)
+	{
+		uint32_t d0;
+		size_t size;
+
+		uint32_t parm = cpuGetAReg(0);
+
+		fprintf(stderr, "%04x GetEOF(%08x)\n", trap, parm);
+
+		uint32_t ioCompletion = memoryReadLong(parm + 12);
+		uint16_t ioRefNum = memoryReadWord(parm + 24);
+
+		struct stat st;
+
+		if (::fstat(ioRefNum, &st) < 0)
+		{
+			d0 = errno_to_oserr(errno);
+			size = 0;
+		}
+		else
+		{
+			d0 = 0;
+			size = st.st_size;
+		}
+
+		memoryWriteWord(d0, parm + 16);
+		memoryWriteLong(size, parm + 28);
+
+		return d0;
+	}
+
+
 
 	// return the name of the default volume.
 	// this does not translate well.
diff --git a/toolbox/os.h b/toolbox/os.h
index 45e1931..a04f494 100644
--- a/toolbox/os.h
+++ b/toolbox/os.h
@@ -110,6 +110,7 @@ namespace OS
 	uint16_t GetFileInfo(uint16_t trap);
 	uint16_t SetFileInfo(uint16_t trap);
 
+	uint16_t GetEOF(uint16_t trap);
 	uint16_t GetVol(uint16_t trap);
 }
 
diff --git a/toolbox/toolbox.cpp b/toolbox/toolbox.cpp
index 435e4a3..04d3cc3 100644
--- a/toolbox/toolbox.cpp
+++ b/toolbox/toolbox.cpp
@@ -41,10 +41,15 @@ namespace ToolBox {
 			case 0xA00C:
 				d0 = OS::GetFileInfo(trap);
 				break;
+
 			case 0xa00d:
 				d0 = OS::SetFileInfo(trap);
 				break;
 
+			case 0xa011:
+				d0 = OS::GetEOF(trap);
+				break;
+
 			case 0xa014:
 				d0 = OS::GetVol(trap);
 				break;