#include <stdio.h>
#include <stdlib.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <string.h>
#include <errno.h>
#include <ctype.h>
#include <sys/stat.h>

#include "libopensc/opensc.h"
#include "libopensc/cardctl.h"
#include "util.h"

/* type for associations of IDs to names */
typedef struct _id2str {
	unsigned int id;
	const char *str;
} id2str_t;

static const char *app_name = "opensc-tool";

static int	opt_wait = 0;
static char **	opt_apdus;
static char	*opt_reader;
static int	opt_apdu_count = 0;
static int	verbose = 0;

enum {
	OPT_SERIAL = 0x100,
	OPT_LIST_ALG
};


static sc_context_t *ctx = NULL;
static sc_card_t *card = NULL;

int CardConnect (void) {
	int err = 0, r, c, long_optind = 0;

	const char *opt_driver = NULL;
	const char *opt_conf_entry = NULL;
	sc_context_param_t ctx_param;
		
	setbuf(stderr, NULL);
	setbuf(stdout, NULL);

	memset(&ctx_param, 0, sizeof(ctx_param));
	ctx_param.ver      = 0;
	ctx_param.app_name = app_name;

	r = sc_context_create(&ctx, &ctx_param);
	if (r) {
		//fprintf(stderr, "Failed to establish context: %s\n", sc_strerror(r));
		return 1;
	}
	
	err = util_connect_card(ctx, &card, opt_reader, opt_wait, verbose);
	if (err) {
		CardDisconnect();
		return 2;
	}
	
	return 0;
}


char* CardGetName(void) {
	printf("Card name: ");
	printf("%s\n", card->name);
        return card->name;
}

int CardDisconnect(void) {
	if (card) {
		sc_unlock(card);
		sc_disconnect_card(card);
		card = NULL;
	}
	if (ctx) {
		sc_release_context(ctx);
		ctx = NULL;
	}
	return 0;
}