view target-utils/libcommon/cmd_memdump_human.c @ 783:c136a1a2474b

simagent: initial implementation of APDU exchange
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 13 Mar 2021 22:06:08 +0000
parents 9214118ae941
children
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/*
 * This is a human-oriented memory dump command.  The dump is given in
 * both hex and ASCII, with readable spacing.
 */

#include <sys/types.h>
#include "types.h"

void
cmd_memdump_human(argbulk)
	char *argbulk;
{
	char *argv[3];
	u_long start, length;
	u_long offset;
	u_char intbuf[16];
	int i, c;

	if (parse_args(argbulk, 2, 2, argv, 0) < 0)
		return;
	if (parse_hexarg(argv[0], 8, &start) < 0) {
		printf("ERROR: arg1 must be a valid 32-bit hex address\n");
		return;
	}
	if (parse_hexarg(argv[1], 8, &length) < 0) {
	    printf("ERROR: arg2 must be a valid 32-bit hex value (length)\n");
		return;
	}
	if (start & 0xF || length & 0xF) {
	    printf("ERROR: implementation limit: 16-byte alignment required\n");
		return;
	}
	for (offset = 0; offset < length; offset += 0x10) {
		memcpy(intbuf, start + offset, 0x10);
		printf("%08X: ", start + offset);
		for (i = 0; i < 16; i++) {
			printf("%02X ", intbuf[i]);
			if ((i & 3) == 3)
				putchar(' ');
		}
		for (i = 0; i < 16; i++) {
			c = intbuf[i];
			if (c >= ' ' && c <= '~')
				putchar(c);
			else
				putchar('.');
		}
		putchar('\n');
	}
}