hexdmp

Borland C++ Compiler 5.5

/*
0         1         2         3         4         5         6         7
01234567890123456789012345678901234567890123456789012345678901234567890123456789
HHHHHHHH HH HH HH HH HH HH HH HH-HH HH HH HH HH HH HH HH |XXXXXXXXXXXXXXXX|
*/

#include <ctype.h>
#include <stdio.h>
#include <string.h>

typedef unsigned char	u_char;

int main(int argc, char **argv)
{
	FILE	*pfile;
	u_char	aucBuf[16];
	u_char	uc;
	char	acLine[80];
	char	acTmp[8+1];
	int	iCount;
	int	iRead;
	int	i;

if (argc != 2) {
		fprintf(stderr, "Usage: hexdmp file-in\n");
		return 1;
	}

pfile = fopen(argv[1], "rb");
	if (pfile == NULL) {
		fprintf(stderr, "Error: fopen\n");
		return 1;
	}

for (iCount = 0; ; iCount += 16) {
		iRead = fread(aucBuf, 1, 16, pfile);
		if (iRead <= 0) {
			break;
		}

memset(acLine, ' ', 75);
		acLine[32] = '-';
		acLine[57] = '|';
		acLine[74] = '|';
		sprintf(acTmp, "%.8X", iCount);
		memcpy(acLine, acTmp, 8);

for (i = 0; i < iRead; i++) {
			uc = aucBuf[i];
			sprintf(acTmp, "%.2X", uc);
			memcpy(acLine + 9 + 3 * i, acTmp, 2);
			acLine[58 + i] = isprint(uc) ? uc : '･';
		}

acLine[75] = '\0';
		printf("%s\n", acLine);
	}

fclose(pfile);
	return 0;
}