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85 lines
2.2 KiB
Objective-C
85 lines
2.2 KiB
Objective-C
/*
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* CSHexDump.m
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*
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* Copyright (c) 2017-present, MacPaw Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*/
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#import <Foundation/Foundation.h>
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static NSString *HexDump(const uint8_t *bytes,size_t len,int cols,int indent);
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@implementation NSData (CSHexDump)
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-(NSString *)description
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{
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return [NSString stringWithFormat:@"<\n%@\n>",HexDump([self bytes],[self length],16,0)];
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}
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@end
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@implementation NSValue (CSHexDump)
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/*-(NSString *)description
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{
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NSUInteger size;
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NSGetSizeAndAlignment([self objCType],&size,NULL);
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if(size>0x40000) return [NSString stringWithFormat:@"<Very large %@>",[self class]];
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uint8_t buf[size];
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[self getValue:buf];
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return [NSString stringWithFormat:@"<NSValue:\n%@\n>",HexDump(buf,size,16)];
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}*/
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@end
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static NSString *HexDump(const uint8_t *bytes,size_t len,int cols,int indent)
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{
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NSMutableString *str=[NSMutableString string];
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int lines=(len+cols-1)/cols;
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for(int i=0;i<lines;i++)
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{
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for(int j=0;j<indent;j++) [str appendString:@" "];
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[str appendFormat:@"%08x ",i*cols];
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for(int j=0;j<cols;j++)
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{
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int offs=i*cols+j;
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if(offs>=len) [str appendString:@" "];
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else [str appendFormat:@"%02x",bytes[i*cols+j]];
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if(j%4==3&&j!=cols-1) [str appendString:@" "];
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}
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[str appendString:@" "];
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for(int j=0;j<cols;j++)
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{
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int offs=i*cols+j;
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if(offs>=len) [str appendString:@" "];
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else
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{
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int c=bytes[i*cols+j];
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if(c<0x20||(c>=0x80&&c<0xa0)) c='.';
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[str appendFormat:@"%C",(unichar)c];
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}
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}
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if(i!=lines-1) [str appendString:@"\n"];
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}
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return str;
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}
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