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applicationLayer.h
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applicationLayer.h
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#ifndef _APPLICATION_LAYER_H
#define _APPLICATION_LAYER_H
#include <sys/types.h>
#include "linkLayerProtocol.h"
#define CONTROL_INDEX 0
#define SEQUENCE_INDEX 1
#define L2_INDEX 2
#define L1_INDEX 3
#define DATA_INDEX 4
#define CONTROL_TYPE_FILESIZE 0
#define FILESIZE_SIZE_INDEX 2
#define FILESIZE_INDEX 3
#define CONTROL_TYPE_FILENAME 1
#define FILENAME_SIZE_INDEX(fileSizeFieldSize) 4 + fileSizeFieldSize
#define FILENAME_INDEX(fileSizeFieldSize) 5 + fileSizeFieldSize
#define CONTROL_DATA 0
#define CONTROL_START 1
#define CONTROL_END 2
#define BASE_DATA_PACKET_SIZE 4
#define MAX_FILESIZE_ALLOWED 1073741824
#define FILENAME_LEN 1024
typedef struct {
int fileDescriptor;
int status;
size_t maxPacketSize;
size_t maxDataFieldSize;
} ApplicationLayer;
extern ApplicationLayer applicationLayerConf;
int sendFile(unsigned char* file, size_t fileSize, char* fileName);
unsigned char* receiveFile(size_t* fileSize, char** fileName);
unsigned char* readFile(char *fileName, size_t* fileSize);
int writeFile(unsigned char* fileBuffer, char* fileName, size_t fileSize);
#endif