opensc/src/tools/util.c

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>

#include "util.h"

void print_binary(FILE *f, const u8 *buf, int count)
{
	int i;
	
	for (i = 0; i < count; i++) {
		unsigned char c = buf[i];
		const char *format;
		if (!isalnum(c) && !ispunct(c) && !isspace(c))
			format = "\\x%02X";
		else
			format = "%c";
		fprintf(f, format, c);
	}
	(void) fflush(f);
}

void hex_dump(FILE *f, const u8 *in, int len)
{
	int i;
	
	for (i = 0; i < len; i++)
		fprintf(f, "%02X ", in[i]);
}

void hex_dump_asc(FILE *f, const u8 *in, size_t count)
{
	int lines = 0;

 	while (count) {
		char ascbuf[17];
		int i;

		for (i = 0; i < count && i < 16; i++) {
			fprintf(f, "%02X ", *in);
			if (isprint(*in))
				ascbuf[i] = *in;
			else
				ascbuf[i] = '.';
			in++;
		}
		count -= i;
		ascbuf[i] = 0;
		for (; i < 16 && lines; i++)
			fprintf(f, "   ");
		fprintf(f, "%s\n", ascbuf);
		lines++;
	}
}

void print_usage_and_die(const char *pgmname)
{
	int i = 0;
	printf("Usage: %s [OPTIONS]\nOptions:\n", pgmname);

	while (options[i].name) {
		char buf[40], tmp[5];
		const char *arg_str;
		
		if (options[i].val > 0 && options[i].val < 128)
			sprintf(tmp, ", -%c", options[i].val);
		else
			tmp[0] = 0;
		switch (options[i].has_arg) {
		case 1:
			arg_str = " <arg>";
			break;
		case 2:
			arg_str = " [arg]";
			break;
		default:
			arg_str = "";
			break;
		}
		sprintf(buf, "--%s%s%s", options[i].name, tmp, arg_str);
		printf("  %-30s%s\n", buf, option_help[i]);
		i++;
	}
	exit(2);
}