Add the 3.3.3 sources for class-dump.

class-dump/src/CDSection64.m

+// -*- mode: ObjC -*-
+
+//  This file is part of class-dump, a utility for examining the Objective-C segment of Mach-O files.
+//  Copyright (C) 1997-1998, 2000-2001, 2004-2010 Steve Nygard.
+
+#import "CDSection64.h"
+
+#import "CDDataCursor.h"
+#import "CDMachOFile.h"
+
+@implementation CDSection64
+
+- (id)initWithDataCursor:(CDDataCursor *)cursor segment:(CDLCSegment64 *)aSegment;
+{
+    char buf[17];
+    NSString *str;
+
+    if ([super init] == nil)
+        return nil;
+
+    nonretained_segment = aSegment;
+
+    [cursor readBytesOfLength:16 intoBuffer:section.sectname];
+    [cursor readBytesOfLength:16 intoBuffer:section.segname];
+    section.addr = [cursor readInt64];
+    section.size = [cursor readInt64];
+    section.offset = [cursor readInt32];
+    section.align = [cursor readInt32];
+    section.reloff = [cursor readInt32];
+    section.nreloc = [cursor readInt32];
+    section.flags = [cursor readInt32];
+    section.reserved1 = [cursor readInt32];
+    section.reserved2 = [cursor readInt32];
+    section.reserved3 = [cursor readInt32];
+
+    // These aren't guaranteed to be null terminated.  Witness __cstring_object in __OBJC segment
+
+    memcpy(buf, section.segname, 16);
+    buf[16] = 0;
+    str = [[NSString alloc] initWithBytes:buf length:strlen(buf) encoding:NSASCIIStringEncoding];
+    [self setSegmentName:str];
+    [str release];
+
+    memcpy(buf, section.sectname, 16);
+    buf[16] = 0;
+    str = [[NSString alloc] initWithBytes:buf length:strlen(buf) encoding:NSASCIIStringEncoding];
+    [self setSectionName:str];
+    [str release];
+
+    return self;
+}
+
+- (CDLCSegment64 *)segment;
+{
+    return nonretained_segment;
+}
+
+- (CDMachOFile *)machOFile;
+{
+    return [[self segment] machOFile];
+}
+
+- (NSUInteger)addr;
+{
+    return section.addr;
+}
+
+- (NSUInteger)size;
+{
+    return section.size;
+}
+
+- (void)loadData;
+{
+    if (_flags.hasLoadedData == NO) {
+        data = [[NSData alloc] initWithBytes:[[nonretained_segment machOFile] machODataBytes] + section.offset length:section.size];
+        _flags.hasLoadedData = YES;
+    }
+}
+
+- (NSString *)description;
+{
+    return [NSString stringWithFormat:@"<%@:%p> segment; '%@', section: '%-16s', addr: %016lx, size: %016lx",
+                     NSStringFromClass([self class]), self,
+                     segmentName, [sectionName UTF8String],
+                     section.addr, section.size];
+}
+
+- (BOOL)containsAddress:(NSUInteger)address;
+{
+    return (address >= section.addr) && (address < section.addr + section.size);
+}
+
+- (NSUInteger)fileOffsetForAddress:(NSUInteger)address;
+{
+    NSParameterAssert([self containsAddress:address]);
+    return section.offset + address - section.addr;
+}
+
+@end