#include <stdio.h>

struct BMPFILEHEADER {
	char bfType[2];
	unsigned long bfSize;
	short bfReserved[2];
	unsigned long bfOffBits;
};

struct BMPINFOHEADER {
	unsigned long biSize;
	unsigned long biWidth;
	unsigned long biHeight;
};

//typedef struct BMPFILEHEADER bmpFileHeader;    // 1
typedef struct BMPINFOHEADER bmpInfoHeader;

int main() {
	
	FILE *fp_r;

	fp_r = fopen("girl.bmp", "rb");	

	//bmpFileHeader bmp_file_hdr;          // 1
	//BMPFILEHEADER bmp_file_hdr;          // 2 (?)
	struct BMPFILEHEADER bmp_file_hdr;     // 3

	bmpInfoHeader bmp_info_hdr;

	fread(&bmp_file_hdr.bfType, 1, sizeof(bmp_file_hdr.bfType), fp_r);
	fread(&bmp_file_hdr.bfSize, 1, sizeof(unsigned long), fp_r);
	fread(&bmp_file_hdr.bfReserved, 1, sizeof(bmp_file_hdr.bfReserved), fp_r);
	fread(&bmp_file_hdr.bfOffBits, 1, sizeof(unsigned long), fp_r);


	fread(&bmp_info_hdr.biSize, 1, sizeof(unsigned long), fp_r);
	fread(&bmp_info_hdr.biWidth, 1, sizeof(unsigned long), fp_r);
	fread(&bmp_info_hdr.biHeight, 1, sizeof(unsigned long), fp_r);

	//fread(&bmp_file_hdr, 1, sizeof(bmp_file_hdr), fp_r);    //error!!
	/*
	printf("[debug] size : %d\n", sizeof(bmp_file_hdr) );

	printf("[debug] size : %d\n", sizeof(bmp_file_hdr.bfType) );
	printf("[debug] size : %d\n", sizeof(bmp_file_hdr.bfSize) );
	printf("[debug] size : %d\n", sizeof(bmp_file_hdr.bfReserved) );
	printf("[debug] size : %d\n\n", sizeof(bmp_file_hdr.bfOffBits) );
	*/

	printf("[ BMP FILE HEADER ]\n");
	printf("Type      :\t%c%c \n",		bmp_file_hdr.bfType[0], bmp_file_hdr.bfType[1]);
	printf("TotalSize :\t%lu\n",	bmp_file_hdr.bfSize);
	printf("Reserved  :\t%d[1], %d[2]\n", bmp_file_hdr.bfReserved[0], bmp_file_hdr.bfReserved[1]);
	printf("Offset    :\t%lu\n\n", bmp_file_hdr.bfOffBits);

	printf("[ BMP INFO HEADER ]\n");
	printf("Header Size :\t%lu\n",	bmp_info_hdr.biSize);
	printf("Img Width   :\t%lu\n",	bmp_info_hdr.biWidth);
	printf("Img Height  :\t%lu\n",	bmp_info_hdr.biHeight);

	printf("\n");

	fclose( fp_r );

	return 0;
}