From eecba3b5fcb47a01e6e13ee1940def989f6dd22d Mon Sep 17 00:00:00 2001
From: Fritz Elfert <felfert@to.com>
Date: Thu, 28 Feb 2002 20:56:59 +0000
Subject:  - Added SIS stuff by Daniel Brahneborg

---
 lib/sisfileheader.cpp | 92 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 92 insertions(+)
 create mode 100644 lib/sisfileheader.cpp

(limited to 'lib/sisfileheader.cpp')

diff --git a/lib/sisfileheader.cpp b/lib/sisfileheader.cpp
new file mode 100644
index 0000000..b9800b2
--- /dev/null
+++ b/lib/sisfileheader.cpp
@@ -0,0 +1,92 @@
+
+#include "sisfileheader.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+
+void
+SISFileHeader::fillFrom(uchar* buf, int* base)
+{
+	int ix = *base;
+	m_uid1 = read32(buf, &ix);
+	if (logLevel >= 1)
+		printf("Got uid1 = %08x\n", m_uid1);
+	m_uid2 = read32(buf, &ix);
+	if (m_uid2 != 0x1000006d)
+		{
+		printf("Got bad uid2.\n");
+		exit(1);
+		}
+	if (logLevel >= 2)
+		printf("Got uid2 = %08x\n", m_uid2);
+	m_uid3 = read32(buf, &ix);
+	if (m_uid3 != 0x10000419)
+		{
+		printf("Got bad uid3.\n");
+		exit(1);
+		}
+	if (logLevel >= 2)
+		printf("Got uid3 = %08x\n", m_uid3);
+	m_uid4 = read32(buf, &ix);
+//	printf("Got uid4 = %08x\n", m_uid4);
+	uint16 crc1 = 0;
+	for (int i = 0; i < 12; i += 2)
+		crc1 = updateCrc(crc1, buf[*base + i]);
+	uint16 crc2 = 0;
+	for (int i = 0; i < 12; i += 2)
+		crc2 = updateCrc(crc2, buf[*base + i + 1]);
+	if (logLevel >= 2)
+		printf("Got first crc = %08x, wanted %08x\n",
+			   crc2 << 16 | crc1, m_uid4);
+	if ((crc2 << 16 | crc1) != m_uid4)
+		{
+		printf("Got bad crc.\n");
+		exit(1);
+		}
+	m_crc = read16(buf, &ix);
+	m_nlangs = read16(buf, &ix);
+	if (logLevel >= 2)
+		printf("Got %d languages\n", m_nlangs);
+	m_nfiles = read16(buf, &ix);
+	if (logLevel >= 2)
+		printf("Got %d files\n", m_nfiles);
+	m_nreqs = read16(buf, &ix);
+	if (logLevel >= 2)
+		printf("Got %d reqs\n", m_nreqs);
+	m_installationLanguage = read16(buf, &ix);
+	m_installationFiles = read16(buf, &ix);
+	m_installationDrive = read32(buf, &ix);
+	m_installerVersion = read32(buf, &ix);
+	if (logLevel >= 2)
+		printf("Got installer version: %08x\n", m_installerVersion);
+	m_options = read16(buf, &ix);
+	if (logLevel >= 2)
+		printf("Got options: %04x\n", m_options);
+	m_type = read16(buf, &ix);
+	if (logLevel >= 2)
+		printf("Got type: %0x\n", m_type);
+	m_major = read16(buf, &ix);
+	if (logLevel >= 2)
+		printf("Got major: %d\n", m_major);
+	m_minor = read16(buf, &ix);
+	if (logLevel >= 2)
+		printf("Got minor: %d\n", m_minor);
+	m_minor = read32(buf, &ix);
+	if (logLevel >= 2)
+		printf("Got variant: %d\n", m_variant);
+	m_languagePtr = read32(buf, &ix);
+	if (logLevel >= 2)
+		printf("Languages begin at %d\n", m_languagePtr);
+	m_filesPtr = read32(buf, &ix);
+	if (logLevel >= 2)
+		printf("Files begin at %d\n", m_filesPtr);
+	m_reqPtr = read32(buf, &ix);
+	if (logLevel >= 2)
+		printf("Requisites begin at %d\n", m_reqPtr);
+	m_unknown = read32(buf, &ix);
+	m_componentPtr = read32(buf, &ix);
+	if (logLevel >= 2)
+		printf("Components begin at %d\n", m_componentPtr);
+	*base = ix;
+}
+
-- 
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