1 files changed, 99 insertions, 0 deletions
diff --git a/gtk/usbutil.c b/gtk/usbutil.c
new file mode 100644
index 0000000..4f9502d
--- /dev/null
+++ b/gtk/usbutil.c
@@ -0,0 +1,99 @@
+/* -*- Mode: C; c-basic-offset: 4; indent-tabs-mode: nil -*- */
+/*
+   Copyright (C) 2012 Red Hat, Inc.
+
+   Red Hat Authors:
+   Hans de Goede <hdegoede@redhat.com>
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   This library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "config.h"
+
+#include <glib-object.h>
+#include <glib/gi18n.h>
+
+#include "glib-compat.h"
+
+#ifdef USE_USBREDIR
+#ifdef __linux__
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#endif
+#include "usbutil.h"
+
+G_GNUC_INTERNAL
+const char *spice_usbutil_libusb_strerror(enum libusb_error error_code)
+{
+    switch (error_code) {
+    case LIBUSB_SUCCESS:
+        return "Success";
+    case LIBUSB_ERROR_IO:
+        return "Input/output error";
+    case LIBUSB_ERROR_INVALID_PARAM:
+        return "Invalid parameter";
+    case LIBUSB_ERROR_ACCESS:
+        return "Access denied (insufficient permissions)";
+    case LIBUSB_ERROR_NO_DEVICE:
+        return "No such device (it may have been disconnected)";
+    case LIBUSB_ERROR_NOT_FOUND:
+        return "Entity not found";
+    case LIBUSB_ERROR_BUSY:
+        return "Resource busy";
+    case LIBUSB_ERROR_TIMEOUT:
+        return "Operation timed out";
+    case LIBUSB_ERROR_OVERFLOW:
+        return "Overflow";
+    case LIBUSB_ERROR_PIPE:
+        return "Pipe error";
+    case LIBUSB_ERROR_INTERRUPTED:
+        return "System call interrupted (perhaps due to signal)";
+    case LIBUSB_ERROR_NO_MEM:
+        return "Insufficient memory";
+    case LIBUSB_ERROR_NOT_SUPPORTED:
+        return "Operation not supported or unimplemented on this platform";
+    case LIBUSB_ERROR_OTHER:
+        return "Other error";
+    }
+    return "Unknown error";
+}
+
+#ifdef __linux__
+/* <Sigh> libusb does not allow getting the manufacturer and product strings
+   without opening the device, so grab them directly from sysfs */
+gchar *spice_usbutil_get_sysfs_attribute(int bus, int address, const char *attribute)
+{
+    struct stat stat_buf;
+    char filename[256];
+    gchar *contents;
+
+    snprintf(filename, sizeof(filename), "/dev/bus/usb/%03d/%03d",
+             bus, address);
+    if (stat(filename, &stat_buf) != 0)
+        return NULL;
+
+    snprintf(filename, sizeof(filename), "/sys/dev/char/%d:%d/%s",
+             major(stat_buf.st_rdev), minor(stat_buf.st_rdev), attribute);
+    if (!g_file_get_contents(filename, &contents, NULL, NULL))
+        return NULL;
+
+    /* Remove the newline at the end */
+    contents[strlen(contents) - 1] = '\0';
+
+    return contents;
+}
+#endif
+#endif