stringify_error now returns a string instead of printing the error

git-svn-id: https://vsmartcard.svn.sourceforge.net/svnroot/vsmartcard@741 96b47cad-a561-4643-ad3b-153ac7d7599c

pcsc-relay/src/pcscutil.c

@@ -1 +0,0 @@
-../../ccid/src/pcscutil.c

pcsc-relay/src/pcscutil.c

@@ -0,0 +1,126 @@
+/*
+ * Copyright (C) 2010 Frank Morgner
+ *
+ * This file is part of ccid.
+ *
+ * ccid is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation, either version 3 of the License, or (at your option) any later
+ * version.
+ *
+ * ccid is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * ccid.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <stdio.h>
+#include <string.h>
+
+#include "pcscutil.h"
+
+#pragma comment(lib, "winscard.lib")
+
+LONG
+pcsc_connect(unsigned int readernum, DWORD dwShareMode, DWORD dwPreferredProtocols,
+        LPSCARDCONTEXT phContext, LPSTR *readers, LPSCARDHANDLE phCard,
+        LPDWORD pdwActiveProtocol)
+{
+    LONG r;
+    DWORD ctl, readerslen;
+    char *reader;
+    size_t l, i;
+
+    r = SCardEstablishContext(SCARD_SCOPE_SYSTEM, NULL, NULL, phContext);
+    if (r != SCARD_S_SUCCESS) {
+        fprintf(stderr, "Could not connect to PC/SC Service\n");
+        goto err;
+    }
+
+
+    readerslen = SCARD_AUTOALLOCATE;
+    r = SCardListReaders(*phContext, NULL, (LPTSTR) readers, &readerslen);
+    if (r != SCARD_S_SUCCESS) {
+        fprintf(stderr, "Could not get readers\n");
+        goto err;
+    }
+
+    for (reader = *readers, i = 0; readerslen > 0;
+            l = strlen(reader) + 1, readerslen -= l, reader += l, i++) {
+
+        if (i == readernum)
+            break;
+    }
+    if (readerslen <= 0) {
+        fprintf(stderr, "Could not find reader number %u\n", readernum);
+        r = SCARD_E_UNKNOWN_READER;
+        goto err;
+    }
+
+
+    r = SCardConnect(*phContext, reader, dwShareMode, dwPreferredProtocols,
+            phCard, pdwActiveProtocol); 
+    if (r != SCARD_S_SUCCESS) {
+        fprintf(stderr, "Could not connect to %s\n", reader);
+        goto err;
+    }
+    printf("Connected to %s\n", reader);
+
+err:
+    return r;
+}
+
+void
+pcsc_disconnect(SCARDCONTEXT hContext, SCARDHANDLE hCard, LPSTR readers)
+{
+    SCardDisconnect(hCard, SCARD_LEAVE_CARD);
+    SCardFreeMemory(hContext, readers);
+    SCardReleaseContext(hContext);
+}
+
+LONG
+pcsc_transmit(DWORD dwActiveProtocol, SCARDHANDLE hCard,
+        LPCBYTE pbSendBuffer, DWORD cbSendLength,
+        LPBYTE pbRecvBuffer, LPDWORD pcbRecvLength)
+{
+    LONG r;
+    SCARD_IO_REQUEST ioRecvPci;
+
+    switch (dwActiveProtocol) {
+        case SCARD_PROTOCOL_T0:
+            r = SCardTransmit(hCard, SCARD_PCI_T0, pbSendBuffer, cbSendLength,
+                    &ioRecvPci, pbRecvBuffer, pcbRecvLength);
+            break;
+
+        case SCARD_PROTOCOL_T1:
+            r = SCardTransmit(hCard, SCARD_PCI_T1, pbSendBuffer, cbSendLength,
+                    &ioRecvPci, pbRecvBuffer, pcbRecvLength);
+            break;
+
+        default:
+            fprintf(stderr, "Could not transmit with unknown protocol %u\n",
+                    (unsigned int) dwActiveProtocol);
+            r = SCARD_E_PROTO_MISMATCH;
+            break;
+    }
+
+    return r;
+}
+
+void
+printb(const char *label, unsigned char *buf, size_t len)
+{
+    size_t i = 0;
+    printf("%s", label);
+    while (i < len) {
+        printf("%02X", buf[i]);
+        i++;
+        if (i%20)
+            printf(" ");
+        else if (i != len)
+            printf("\n");
+    }
+    printf("\n");
+}

pcsc-relay/src/pcscutil.h

@@ -1 +0,0 @@
-../../ccid/src/pcscutil.h

pcsc-relay/src/pcscutil.h

@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2010-2012 Frank Morgner <morgner@informatik.hu-berlin.de>.
+ *
+ * This file is part of ccid.
+ *
+ * ccid is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation, either version 3 of the License, or (at your option) any later
+ * version.
+ *
+ * ccid is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * ccid.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _PCSCUTIL_H
+#define _PCSCUTIL_H
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdio.h>
+#include <winscard.h>
+#ifdef HAVE_PCSCLITE_H
+#include <pcsclite.h>
+#define stringify_error(r) pcsc_stringify_error(r)
+#else
+#define stringify_error(r) "PC/SC error code %u\n", (unsigned int) r
+#define SCARD_PROTOCOL_ANY (SCARD_PROTOCOL_T0|SCARD_PROTOCOL_T1)
+#endif
+
+#ifdef HAVE_READER_H
+#include <reader.h>
+#endif
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+LONG
+pcsc_connect(unsigned int readernum, DWORD dwShareMode, DWORD dwPreferredProtocol,
+        SCARDCONTEXT *hContext, LPSTR *readers, LPSCARDHANDLE phCard,
+        LPDWORD pdwActiveProtocol);
+
+void
+pcsc_disconnect(SCARDCONTEXT hContext, SCARDHANDLE hCard, LPSTR readers);
+
+LONG
+pcsc_transmit(DWORD dwActiveProtocol, SCARDHANDLE hCard,
+        LPCBYTE pbSendBuffer, DWORD cbSendLength,
+        LPBYTE pbRecvBuffer, LPDWORD pcbRecvLength);
+
+void
+printb(const char *label, unsigned char *buf, size_t len);
+
+#ifdef  __cplusplus
+}
+#endif
+#endif