int vicc_present(struct vicc_ctx *ctx) {
unsigned char *atr = NULL;
if (!ctx)
return 0;
if (ctx->client_sock < 0) {
if (ctx->server_sock) {
/* server mode, try to accept a client */
ctx->client_sock = waitforclient(ctx->server_sock, 0, 0);
if (!ctx->client_sock) {
ctx->client_sock = -1;
}
} else {
/* client mode, try to connect (again) */
ctx->client_sock = connectsock(ctx->hostname, ctx->port);
}
}
if (ctx->client_sock < 0)
/* not connected */
return 0;
/* get the atr to check if the card is still alive */
if (vicc_getatr(ctx, &atr) <= 0)
return 0;
free(atr);
return 1;
}
int vicc_connect(struct vicc_ctx *ctx, long secs, long usecs)
{
if (!ctx)
return 0;
if (ctx->client_sock == INVALID_SOCKET) {
if (ctx->server_sock) {
/* server mode, try to accept a client */
ctx->client_sock = waitforclient(ctx->server_sock, secs, usecs);
if (!ctx->client_sock) {
ctx->client_sock = INVALID_SOCKET;
}
} else {
/* client mode, try to connect (again) */
ctx->client_sock = connectsock(ctx->hostname, ctx->port);
}
}
if (ctx->client_sock == INVALID_SOCKET)
/* not connected */
return 0;
else
return 1;
}
