VivoKey/vsmartcard
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get cards atr on first try

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This commit is contained in:
Frank Morgner
2013-06-26 11:58:06 +02:00
parent 2d64ca4e14
commit 013abb2f35
1 changed files with 8 additions and 7 deletions
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15
virtualsmartcard/src/vpcd/vpcd.c
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@@ -248,6 +248,13 @@ ssize_t vicc_transmit(struct vicc_ctx *ctx,
int vicc_present(struct vicc_ctx *ctx) { int vicc_present(struct vicc_ctx *ctx) {
unsigned char *atr = NULL; unsigned char *atr = NULL;
if (ctx->client_sock <= 0)
/* Wait up to one microsecond. */
ctx->client_sock = waitforclient(ctx->server_sock, 0, 1);
if (ctx->client_sock < 0)
return -1;
if (ctx->client_sock > 0) { if (ctx->client_sock > 0) {
if (vicc_getatr(ctx, &atr) <= 0) if (vicc_getatr(ctx, &atr) <= 0)
return 0; return 0;
@@ -256,14 +263,8 @@ int vicc_present(struct vicc_ctx *ctx) {
return 1; return 1;
} else { } else {
/* Wait up to one microsecond. */ return 0;
ctx->client_sock = waitforclient(ctx->server_sock, 0, 1);
if (ctx->client_sock < 0)
return -1;
} }
return 0;
} }
ssize_t vicc_getatr(struct vicc_ctx *ctx, unsigned char **atr) { ssize_t vicc_getatr(struct vicc_ctx *ctx, unsigned char **atr) {