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-rw-r--r--qemu/libcacard/vscclient.c785
1 files changed, 785 insertions, 0 deletions
diff --git a/qemu/libcacard/vscclient.c b/qemu/libcacard/vscclient.c
new file mode 100644
index 000000000..065268443
--- /dev/null
+++ b/qemu/libcacard/vscclient.c
@@ -0,0 +1,785 @@
+/*
+ * Tester for VSCARD protocol, client side.
+ *
+ * Can be used with ccid-card-passthru.
+ *
+ * Copyright (c) 2011 Red Hat.
+ * Written by Alon Levy.
+ *
+ * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
+ * See the COPYING.LIB file in the top-level directory.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#ifndef _WIN32
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netdb.h>
+#include <unistd.h>
+#define closesocket(x) close(x)
+#else
+#include <getopt.h>
+#endif
+
+#include "glib-compat.h"
+
+#include "vscard_common.h"
+
+#include "vreader.h"
+#include "vcard_emul.h"
+#include "vevent.h"
+
+static int verbose;
+
+static void
+print_byte_array(
+ uint8_t *arrBytes,
+ unsigned int nSize
+) {
+ int i;
+ for (i = 0; i < nSize; i++) {
+ printf("%02X ", arrBytes[i]);
+ }
+ printf("\n");
+}
+
+static void
+print_usage(void) {
+ printf("vscclient [-c <certname> .. -e <emul_args> -d <level>%s] "
+ "<host> <port>\n",
+#ifdef USE_PASSTHRU
+ " -p");
+ printf(" -p use passthrough mode\n");
+#else
+ "");
+#endif
+ vcard_emul_usage();
+}
+
+static GIOChannel *channel_socket;
+static GByteArray *socket_to_send;
+static CompatGMutex socket_to_send_lock;
+static guint socket_tag;
+
+static void
+update_socket_watch(void);
+
+static gboolean
+do_socket_send(GIOChannel *source,
+ GIOCondition condition,
+ gpointer data)
+{
+ gsize bw;
+ GError *err = NULL;
+
+ g_return_val_if_fail(socket_to_send->len != 0, FALSE);
+ g_return_val_if_fail(condition & G_IO_OUT, FALSE);
+
+ g_io_channel_write_chars(channel_socket,
+ (gchar *)socket_to_send->data, socket_to_send->len, &bw, &err);
+ if (err != NULL) {
+ g_error("Error while sending socket %s", err->message);
+ return FALSE;
+ }
+ g_byte_array_remove_range(socket_to_send, 0, bw);
+
+ if (socket_to_send->len == 0) {
+ update_socket_watch();
+ return FALSE;
+ }
+ return TRUE;
+}
+
+static gboolean
+socket_prepare_sending(gpointer user_data)
+{
+ update_socket_watch();
+
+ return FALSE;
+}
+
+static int
+send_msg(
+ VSCMsgType type,
+ uint32_t reader_id,
+ const void *msg,
+ unsigned int length
+) {
+ VSCMsgHeader mhHeader;
+
+ g_mutex_lock(&socket_to_send_lock);
+
+ if (verbose > 10) {
+ printf("sending type=%d id=%u, len =%u (0x%x)\n",
+ type, reader_id, length, length);
+ }
+
+ mhHeader.type = htonl(type);
+ mhHeader.reader_id = 0;
+ mhHeader.length = htonl(length);
+ g_byte_array_append(socket_to_send, (guint8 *)&mhHeader, sizeof(mhHeader));
+ g_byte_array_append(socket_to_send, (guint8 *)msg, length);
+ g_idle_add(socket_prepare_sending, NULL);
+
+ g_mutex_unlock(&socket_to_send_lock);
+
+ return 0;
+}
+
+static VReader *pending_reader;
+static CompatGMutex pending_reader_lock;
+static CompatGCond pending_reader_condition;
+
+#define MAX_ATR_LEN 40
+static gpointer
+event_thread(gpointer arg)
+{
+ unsigned char atr[MAX_ATR_LEN];
+ int atr_len;
+ VEvent *event;
+ unsigned int reader_id;
+
+
+ while (1) {
+ const char *reader_name;
+
+ event = vevent_wait_next_vevent();
+ if (event == NULL) {
+ break;
+ }
+ reader_id = vreader_get_id(event->reader);
+ if (reader_id == VSCARD_UNDEFINED_READER_ID &&
+ event->type != VEVENT_READER_INSERT) {
+ /* ignore events from readers qemu has rejected */
+ /* if qemu is still deciding on this reader, wait to see if need to
+ * forward this event */
+ g_mutex_lock(&pending_reader_lock);
+ if (!pending_reader || (pending_reader != event->reader)) {
+ /* wasn't for a pending reader, this reader has already been
+ * rejected by qemu */
+ g_mutex_unlock(&pending_reader_lock);
+ vevent_delete(event);
+ continue;
+ }
+ /* this reader hasn't been told its status from qemu yet, wait for
+ * that status */
+ while (pending_reader != NULL) {
+ g_cond_wait(&pending_reader_condition, &pending_reader_lock);
+ }
+ g_mutex_unlock(&pending_reader_lock);
+ /* now recheck the id */
+ reader_id = vreader_get_id(event->reader);
+ if (reader_id == VSCARD_UNDEFINED_READER_ID) {
+ /* this reader was rejected */
+ vevent_delete(event);
+ continue;
+ }
+ /* reader was accepted, now forward the event */
+ }
+ switch (event->type) {
+ case VEVENT_READER_INSERT:
+ /* tell qemu to insert a new CCID reader */
+ /* wait until qemu has responded to our first reader insert
+ * before we send a second. That way we won't confuse the responses
+ * */
+ g_mutex_lock(&pending_reader_lock);
+ while (pending_reader != NULL) {
+ g_cond_wait(&pending_reader_condition, &pending_reader_lock);
+ }
+ pending_reader = vreader_reference(event->reader);
+ g_mutex_unlock(&pending_reader_lock);
+ reader_name = vreader_get_name(event->reader);
+ if (verbose > 10) {
+ printf(" READER INSERT: %s\n", reader_name);
+ }
+ send_msg(VSC_ReaderAdd,
+ reader_id, /* currerntly VSCARD_UNDEFINED_READER_ID */
+ NULL, 0 /* TODO reader_name, strlen(reader_name) */);
+ break;
+ case VEVENT_READER_REMOVE:
+ /* future, tell qemu that an old CCID reader has been removed */
+ if (verbose > 10) {
+ printf(" READER REMOVE: %u\n", reader_id);
+ }
+ send_msg(VSC_ReaderRemove, reader_id, NULL, 0);
+ break;
+ case VEVENT_CARD_INSERT:
+ /* get the ATR (intended as a response to a power on from the
+ * reader */
+ atr_len = MAX_ATR_LEN;
+ vreader_power_on(event->reader, atr, &atr_len);
+ /* ATR call functions as a Card Insert event */
+ if (verbose > 10) {
+ printf(" CARD INSERT %u: ", reader_id);
+ print_byte_array(atr, atr_len);
+ }
+ send_msg(VSC_ATR, reader_id, atr, atr_len);
+ break;
+ case VEVENT_CARD_REMOVE:
+ /* Card removed */
+ if (verbose > 10) {
+ printf(" CARD REMOVE %u:\n", reader_id);
+ }
+ send_msg(VSC_CardRemove, reader_id, NULL, 0);
+ break;
+ default:
+ break;
+ }
+ vevent_delete(event);
+ }
+ return NULL;
+}
+
+
+static unsigned int
+get_id_from_string(char *string, unsigned int default_id)
+{
+ unsigned int id = atoi(string);
+
+ /* don't accidentally swith to zero because no numbers have been supplied */
+ if ((id == 0) && *string != '0') {
+ return default_id;
+ }
+ return id;
+}
+
+static int
+on_host_init(VSCMsgHeader *mhHeader, VSCMsgInit *incoming)
+{
+ uint32_t *capabilities = (incoming->capabilities);
+ int num_capabilities =
+ 1 + ((mhHeader->length - sizeof(VSCMsgInit)) / sizeof(uint32_t));
+ int i;
+
+ incoming->version = ntohl(incoming->version);
+ if (incoming->version != VSCARD_VERSION) {
+ if (verbose > 0) {
+ printf("warning: host has version %d, we have %d\n",
+ verbose, VSCARD_VERSION);
+ }
+ }
+ if (incoming->magic != VSCARD_MAGIC) {
+ printf("unexpected magic: got %d, expected %d\n",
+ incoming->magic, VSCARD_MAGIC);
+ return -1;
+ }
+ for (i = 0 ; i < num_capabilities; ++i) {
+ capabilities[i] = ntohl(capabilities[i]);
+ }
+ /* Future: check capabilities */
+ /* remove whatever reader might be left in qemu,
+ * in case of an unclean previous exit. */
+ send_msg(VSC_ReaderRemove, VSCARD_MINIMAL_READER_ID, NULL, 0);
+ /* launch the event_thread. This will trigger reader adds for all the
+ * existing readers */
+ g_thread_new("vsc/event", event_thread, NULL);
+ return 0;
+}
+
+
+enum {
+ STATE_HEADER,
+ STATE_MESSAGE,
+};
+
+#define APDUBufSize 270
+
+static gboolean
+do_socket_read(GIOChannel *source,
+ GIOCondition condition,
+ gpointer data)
+{
+ int rv;
+ int dwSendLength;
+ int dwRecvLength;
+ uint8_t pbRecvBuffer[APDUBufSize];
+ static uint8_t pbSendBuffer[APDUBufSize];
+ VReaderStatus reader_status;
+ VReader *reader = NULL;
+ static VSCMsgHeader mhHeader;
+ VSCMsgError *error_msg;
+ GError *err = NULL;
+
+ static gchar *buf;
+ static gsize br, to_read;
+ static int state = STATE_HEADER;
+
+ if (state == STATE_HEADER && to_read == 0) {
+ buf = (gchar *)&mhHeader;
+ to_read = sizeof(mhHeader);
+ }
+
+ if (to_read > 0) {
+ g_io_channel_read_chars(source, (gchar *)buf, to_read, &br, &err);
+ if (err != NULL) {
+ g_error("error while reading: %s", err->message);
+ }
+ buf += br;
+ to_read -= br;
+ if (to_read != 0) {
+ return TRUE;
+ }
+ }
+
+ if (state == STATE_HEADER) {
+ mhHeader.type = ntohl(mhHeader.type);
+ mhHeader.reader_id = ntohl(mhHeader.reader_id);
+ mhHeader.length = ntohl(mhHeader.length);
+ if (verbose) {
+ printf("Header: type=%d, reader_id=%u length=%d (0x%x)\n",
+ mhHeader.type, mhHeader.reader_id, mhHeader.length,
+ mhHeader.length);
+ }
+ switch (mhHeader.type) {
+ case VSC_APDU:
+ case VSC_Flush:
+ case VSC_Error:
+ case VSC_Init:
+ buf = (gchar *)pbSendBuffer;
+ to_read = mhHeader.length;
+ state = STATE_MESSAGE;
+ return TRUE;
+ default:
+ fprintf(stderr, "Unexpected message of type 0x%X\n", mhHeader.type);
+ return FALSE;
+ }
+ }
+
+ if (state == STATE_MESSAGE) {
+ switch (mhHeader.type) {
+ case VSC_APDU:
+ if (verbose) {
+ printf(" recv APDU: ");
+ print_byte_array(pbSendBuffer, mhHeader.length);
+ }
+ /* Transmit received APDU */
+ dwSendLength = mhHeader.length;
+ dwRecvLength = sizeof(pbRecvBuffer);
+ reader = vreader_get_reader_by_id(mhHeader.reader_id);
+ reader_status = vreader_xfr_bytes(reader,
+ pbSendBuffer, dwSendLength,
+ pbRecvBuffer, &dwRecvLength);
+ if (reader_status == VREADER_OK) {
+ mhHeader.length = dwRecvLength;
+ if (verbose) {
+ printf(" send response: ");
+ print_byte_array(pbRecvBuffer, mhHeader.length);
+ }
+ send_msg(VSC_APDU, mhHeader.reader_id,
+ pbRecvBuffer, dwRecvLength);
+ } else {
+ rv = reader_status; /* warning: not meaningful */
+ send_msg(VSC_Error, mhHeader.reader_id, &rv, sizeof(uint32_t));
+ }
+ vreader_free(reader);
+ reader = NULL; /* we've freed it, don't use it by accident
+ again */
+ break;
+ case VSC_Flush:
+ /* TODO: actually flush */
+ send_msg(VSC_FlushComplete, mhHeader.reader_id, NULL, 0);
+ break;
+ case VSC_Error:
+ error_msg = (VSCMsgError *) pbSendBuffer;
+ if (error_msg->code == VSC_SUCCESS) {
+ g_mutex_lock(&pending_reader_lock);
+ if (pending_reader) {
+ vreader_set_id(pending_reader, mhHeader.reader_id);
+ vreader_free(pending_reader);
+ pending_reader = NULL;
+ g_cond_signal(&pending_reader_condition);
+ }
+ g_mutex_unlock(&pending_reader_lock);
+ break;
+ }
+ printf("warning: qemu refused to add reader\n");
+ if (error_msg->code == VSC_CANNOT_ADD_MORE_READERS) {
+ /* clear pending reader, qemu can't handle any more */
+ g_mutex_lock(&pending_reader_lock);
+ if (pending_reader) {
+ pending_reader = NULL;
+ /* make sure the event loop doesn't hang */
+ g_cond_signal(&pending_reader_condition);
+ }
+ g_mutex_unlock(&pending_reader_lock);
+ }
+ break;
+ case VSC_Init:
+ if (on_host_init(&mhHeader, (VSCMsgInit *)pbSendBuffer) < 0) {
+ return FALSE;
+ }
+ break;
+ default:
+ g_assert_not_reached();
+ return FALSE;
+ }
+
+ state = STATE_HEADER;
+ }
+
+
+ return TRUE;
+}
+
+static gboolean
+do_socket(GIOChannel *source,
+ GIOCondition condition,
+ gpointer data)
+{
+ /* not sure if two watches work well with a single win32 sources */
+ if (condition & G_IO_OUT) {
+ if (!do_socket_send(source, condition, data)) {
+ return FALSE;
+ }
+ }
+
+ if (condition & G_IO_IN) {
+ if (!do_socket_read(source, condition, data)) {
+ return FALSE;
+ }
+ }
+
+ return TRUE;
+}
+
+static void
+update_socket_watch(void)
+{
+ gboolean out = socket_to_send->len > 0;
+
+ if (socket_tag != 0) {
+ g_source_remove(socket_tag);
+ }
+
+ socket_tag = g_io_add_watch(channel_socket,
+ G_IO_IN | (out ? G_IO_OUT : 0), do_socket, NULL);
+}
+
+static gboolean
+do_command(GIOChannel *source,
+ GIOCondition condition,
+ gpointer data)
+{
+ char *string;
+ VCardEmulError error;
+ static unsigned int default_reader_id;
+ unsigned int reader_id;
+ VReader *reader = NULL;
+ GError *err = NULL;
+
+ g_assert(condition & G_IO_IN);
+
+ reader_id = default_reader_id;
+ g_io_channel_read_line(source, &string, NULL, NULL, &err);
+ if (err != NULL) {
+ g_error("Error while reading command: %s", err->message);
+ }
+
+ if (string != NULL) {
+ if (strncmp(string, "exit", 4) == 0) {
+ /* remove all the readers */
+ VReaderList *list = vreader_get_reader_list();
+ VReaderListEntry *reader_entry;
+ printf("Active Readers:\n");
+ for (reader_entry = vreader_list_get_first(list); reader_entry;
+ reader_entry = vreader_list_get_next(reader_entry)) {
+ VReader *reader = vreader_list_get_reader(reader_entry);
+ vreader_id_t reader_id;
+ reader_id = vreader_get_id(reader);
+ if (reader_id == -1) {
+ continue;
+ }
+ /* be nice and signal card removal first (qemu probably should
+ * do this itself) */
+ if (vreader_card_is_present(reader) == VREADER_OK) {
+ send_msg(VSC_CardRemove, reader_id, NULL, 0);
+ }
+ send_msg(VSC_ReaderRemove, reader_id, NULL, 0);
+ }
+ exit(0);
+ } else if (strncmp(string, "insert", 6) == 0) {
+ if (string[6] == ' ') {
+ reader_id = get_id_from_string(&string[7], reader_id);
+ }
+ reader = vreader_get_reader_by_id(reader_id);
+ if (reader != NULL) {
+ error = vcard_emul_force_card_insert(reader);
+ printf("insert %s, returned %d\n",
+ vreader_get_name(reader), error);
+ } else {
+ printf("no reader by id %u found\n", reader_id);
+ }
+ } else if (strncmp(string, "remove", 6) == 0) {
+ if (string[6] == ' ') {
+ reader_id = get_id_from_string(&string[7], reader_id);
+ }
+ reader = vreader_get_reader_by_id(reader_id);
+ if (reader != NULL) {
+ error = vcard_emul_force_card_remove(reader);
+ printf("remove %s, returned %d\n",
+ vreader_get_name(reader), error);
+ } else {
+ printf("no reader by id %u found\n", reader_id);
+ }
+ } else if (strncmp(string, "select", 6) == 0) {
+ if (string[6] == ' ') {
+ reader_id = get_id_from_string(&string[7],
+ VSCARD_UNDEFINED_READER_ID);
+ }
+ if (reader_id != VSCARD_UNDEFINED_READER_ID) {
+ reader = vreader_get_reader_by_id(reader_id);
+ }
+ if (reader) {
+ printf("Selecting reader %u, %s\n", reader_id,
+ vreader_get_name(reader));
+ default_reader_id = reader_id;
+ } else {
+ printf("Reader with id %u not found\n", reader_id);
+ }
+ } else if (strncmp(string, "debug", 5) == 0) {
+ if (string[5] == ' ') {
+ verbose = get_id_from_string(&string[6], 0);
+ }
+ printf("debug level = %d\n", verbose);
+ } else if (strncmp(string, "list", 4) == 0) {
+ VReaderList *list = vreader_get_reader_list();
+ VReaderListEntry *reader_entry;
+ printf("Active Readers:\n");
+ for (reader_entry = vreader_list_get_first(list); reader_entry;
+ reader_entry = vreader_list_get_next(reader_entry)) {
+ VReader *reader = vreader_list_get_reader(reader_entry);
+ vreader_id_t reader_id;
+ reader_id = vreader_get_id(reader);
+ if (reader_id == -1) {
+ continue;
+ }
+ printf("%3u %s %s\n", reader_id,
+ vreader_card_is_present(reader) == VREADER_OK ?
+ "CARD_PRESENT" : " ",
+ vreader_get_name(reader));
+ }
+ printf("Inactive Readers:\n");
+ for (reader_entry = vreader_list_get_first(list); reader_entry;
+ reader_entry = vreader_list_get_next(reader_entry)) {
+ VReader *reader = vreader_list_get_reader(reader_entry);
+ vreader_id_t reader_id;
+ reader_id = vreader_get_id(reader);
+ if (reader_id != -1) {
+ continue;
+ }
+
+ printf("INA %s %s\n",
+ vreader_card_is_present(reader) == VREADER_OK ?
+ "CARD_PRESENT" : " ",
+ vreader_get_name(reader));
+ }
+ vreader_list_delete(list);
+ } else if (*string != 0) {
+ printf("valid commands:\n");
+ printf("insert [reader_id]\n");
+ printf("remove [reader_id]\n");
+ printf("select reader_id\n");
+ printf("list\n");
+ printf("debug [level]\n");
+ printf("exit\n");
+ }
+ }
+ vreader_free(reader);
+ printf("> ");
+ fflush(stdout);
+
+ return TRUE;
+}
+
+
+/* just for ease of parsing command line arguments. */
+#define MAX_CERTS 100
+
+static int
+connect_to_qemu(
+ const char *host,
+ const char *port
+) {
+ struct addrinfo hints;
+ struct addrinfo *server = NULL;
+ int ret, sock;
+
+ sock = socket(AF_INET, SOCK_STREAM, 0);
+ if (sock < 0) {
+ /* Error */
+ fprintf(stderr, "Error opening socket!\n");
+ return -1;
+ }
+
+ memset(&hints, 0, sizeof(struct addrinfo));
+ hints.ai_family = AF_UNSPEC;
+ hints.ai_socktype = SOCK_STREAM;
+ hints.ai_flags = 0;
+ hints.ai_protocol = 0; /* Any protocol */
+
+ ret = getaddrinfo(host, port, &hints, &server);
+
+ if (ret != 0) {
+ /* Error */
+ fprintf(stderr, "getaddrinfo failed\n");
+ goto cleanup_socket;
+ }
+
+ if (connect(sock, server->ai_addr, server->ai_addrlen) < 0) {
+ /* Error */
+ fprintf(stderr, "Could not connect\n");
+ goto cleanup_socket;
+ }
+ if (verbose) {
+ printf("Connected (sizeof Header=%zd)!\n", sizeof(VSCMsgHeader));
+ }
+
+ freeaddrinfo(server);
+ return sock;
+
+cleanup_socket:
+ if (server) {
+ freeaddrinfo(server);
+ }
+ closesocket(sock);
+ return -1;
+}
+
+int
+main(
+ int argc,
+ char *argv[]
+) {
+ GMainLoop *loop;
+ GIOChannel *channel_stdin;
+ char *qemu_host;
+ char *qemu_port;
+
+ VCardEmulOptions *command_line_options = NULL;
+
+ char *cert_names[MAX_CERTS];
+ char *emul_args = NULL;
+ int cert_count = 0;
+ int c, sock;
+
+#ifdef _WIN32
+ WSADATA Data;
+
+ if (WSAStartup(MAKEWORD(2, 2), &Data) != 0) {
+ c = WSAGetLastError();
+ fprintf(stderr, "WSAStartup: %d\n", c);
+ return 1;
+ }
+#endif
+#if !GLIB_CHECK_VERSION(2, 31, 0)
+ if (!g_thread_supported()) {
+ g_thread_init(NULL);
+ }
+#endif
+
+ while ((c = getopt(argc, argv, "c:e:pd:")) != -1) {
+ switch (c) {
+ case 'c':
+ if (cert_count >= MAX_CERTS) {
+ printf("too many certificates (max = %d)\n", MAX_CERTS);
+ exit(5);
+ }
+ cert_names[cert_count++] = optarg;
+ break;
+ case 'e':
+ emul_args = optarg;
+ break;
+ case 'p':
+ print_usage();
+ exit(4);
+ break;
+ case 'd':
+ verbose = get_id_from_string(optarg, 1);
+ break;
+ }
+ }
+
+ if (argc - optind != 2) {
+ print_usage();
+ exit(4);
+ }
+
+ if (cert_count > 0) {
+ char *new_args;
+ int len, i;
+ /* if we've given some -c options, we clearly we want do so some
+ * software emulation. add that emulation now. this is NSS Emulator
+ * specific */
+ if (emul_args == NULL) {
+ emul_args = (char *)"db=\"/etc/pki/nssdb\"";
+ }
+#define SOFT_STRING ",soft=(,Virtual Reader,CAC,,"
+ /* 2 == close paren & null */
+ len = strlen(emul_args) + strlen(SOFT_STRING) + 2;
+ for (i = 0; i < cert_count; i++) {
+ len += strlen(cert_names[i])+1; /* 1 == comma */
+ }
+ new_args = g_malloc(len);
+ strcpy(new_args, emul_args);
+ strcat(new_args, SOFT_STRING);
+ for (i = 0; i < cert_count; i++) {
+ strcat(new_args, cert_names[i]);
+ strcat(new_args, ",");
+ }
+ strcat(new_args, ")");
+ emul_args = new_args;
+ }
+ if (emul_args) {
+ command_line_options = vcard_emul_options(emul_args);
+ }
+
+ qemu_host = g_strdup(argv[argc - 2]);
+ qemu_port = g_strdup(argv[argc - 1]);
+ sock = connect_to_qemu(qemu_host, qemu_port);
+ if (sock == -1) {
+ fprintf(stderr, "error opening socket, exiting.\n");
+ exit(5);
+ }
+
+ socket_to_send = g_byte_array_new();
+ vcard_emul_init(command_line_options);
+ loop = g_main_loop_new(NULL, TRUE);
+
+ printf("> ");
+ fflush(stdout);
+
+#ifdef _WIN32
+ channel_stdin = g_io_channel_win32_new_fd(STDIN_FILENO);
+#else
+ channel_stdin = g_io_channel_unix_new(STDIN_FILENO);
+#endif
+ g_io_add_watch(channel_stdin, G_IO_IN, do_command, NULL);
+#ifdef _WIN32
+ channel_socket = g_io_channel_win32_new_socket(sock);
+#else
+ channel_socket = g_io_channel_unix_new(sock);
+#endif
+ g_io_channel_set_encoding(channel_socket, NULL, NULL);
+ /* we buffer ourself for thread safety reasons */
+ g_io_channel_set_buffered(channel_socket, FALSE);
+
+ /* Send init message, Host responds (and then we send reader attachments) */
+ VSCMsgInit init = {
+ .version = htonl(VSCARD_VERSION),
+ .magic = VSCARD_MAGIC,
+ .capabilities = {0}
+ };
+ send_msg(VSC_Init, 0, &init, sizeof(init));
+
+ g_main_loop_run(loop);
+ g_main_loop_unref(loop);
+
+ g_io_channel_unref(channel_stdin);
+ g_io_channel_unref(channel_socket);
+ g_byte_array_free(socket_to_send, TRUE);
+
+ closesocket(sock);
+ return 0;
+}