From 59222a752fa4c8a1e8c2a00ee2f9e22855f12bb2 Mon Sep 17 00:00:00 2001
From: llornkcor <llornkcor>
Date: Mon, 01 Jul 2002 23:24:08 +0000
Subject: initial

---
(limited to 'noncore/apps/opie-reader/pdb.cpp')

diff --git a/noncore/apps/opie-reader/pdb.cpp b/noncore/apps/opie-reader/pdb.cpp
new file mode 100644
index 0000000..68b904e
--- a/dev/null
+++ b/noncore/apps/opie-reader/pdb.cpp
@@ -0,0 +1,57 @@
+#include "pdb.h"
+
+size_t Cpdb::recordpos(int n)
+{
+    UInt16 mxn = ntohs(head.recordList.numRecords);
+    if (n >= mxn)
+    {
+	return file_length;
+    }
+    else
+    {
+	size_t dataoffset = sizeof(DatabaseHdrType) - sizeof(UInt16);
+	dataoffset += /*dataoffset%4 + */ sizeof(RecordListType) * n;
+	fseek(fin, dataoffset, SEEK_SET);
+	RecordListType hdr;
+	fread(&hdr, 1, sizeof(hdr), fin);
+	return ntohl(hdr.nextRecordListID);
+    }
+
+}
+
+size_t Cpdb::recordlength(int n)
+{
+    return recordpos(n+1)-recordpos(n);
+}
+
+void Cpdb::gotorecordnumber(int n)
+{
+    fseek(fin, recordpos(n), SEEK_SET);
+}
+
+bool Cpdb::openfile(const char *src)
+{
+
+    //  printf("In openfile\n");
+    int ret = 0;
+    //  printf("closing fin:%x\n",fin);
+    if (fin != NULL) fclose(fin);
+    //  printf("opening fin\n");
+    fin = fopen(src,"rb");
+
+    if (fin==0)
+    {
+	return false;
+    }
+
+    // just holds the first few chars of the file
+    //	char buf[0x100];
+    fseek(fin,0,SEEK_END);
+    file_length = ftell(fin);
+
+    fseek(fin,0,SEEK_SET);
+
+    fread(&head, 1, sizeof(head), fin);
+
+    return true;
+}
--
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