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CVS commit: pkgsrc/security/libnitrokey



Module Name:    pkgsrc
Committed By:   adam
Date:           Sun Oct 29 22:19:17 UTC 2023

Modified Files:
        pkgsrc/security/libnitrokey: Makefile distinfo
Added Files:
        pkgsrc/security/libnitrokey/patches: patch-hidapi_mac_hid.c

Log Message:
libnitrokey: fix build on Darwin


To generate a diff of this commit:
cvs rdiff -u -r1.5 -r1.6 pkgsrc/security/libnitrokey/Makefile
cvs rdiff -u -r1.2 -r1.3 pkgsrc/security/libnitrokey/distinfo
cvs rdiff -u -r0 -r1.1 \
    pkgsrc/security/libnitrokey/patches/patch-hidapi_mac_hid.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: pkgsrc/security/libnitrokey/Makefile
diff -u pkgsrc/security/libnitrokey/Makefile:1.5 pkgsrc/security/libnitrokey/Makefile:1.6
--- pkgsrc/security/libnitrokey/Makefile:1.5    Wed May 24 15:10:59 2023
+++ pkgsrc/security/libnitrokey/Makefile        Sun Oct 29 22:19:17 2023
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.5 2023/05/24 15:10:59 nikita Exp $
+# $NetBSD: Makefile,v 1.6 2023/10/29 22:19:17 adam Exp $
 
 DISTNAME=      libnitrokey-3.8
 PKGREVISION=   3
@@ -12,7 +12,9 @@ HOMEPAGE=     https://github.com/Nitrokey/li
 COMMENT=       Library to communicate with Nitrokey devices
 LICENSE=       gnu-lgpl-v3
 
-USE_TOOLS+=    pkg-config
+USE_CXX_FEATURES=      c++14
+USE_LANGUAGES=         c c++
+USE_TOOLS+=            pkg-config
 
 .include "options.mk"
 
@@ -27,11 +29,10 @@ CMAKE_ARGS+=        -DHIDAPI_LIBUSB_LIBDIR=${BU
 CMAKE_ARGS+=   -DCMAKE_INSTALL_UDEVRULESDIR=${PREFIX}/lib/udev/rules.d/
 
 TEST_TARGET=   test
-USE_LANGUAGES= c c++14
 
-.include "../../devel/libusb1/buildlink3.mk"
 .include "../../comms/libhidapi/buildlink3.mk"
 .include "../../devel/cmake/build.mk"
+.include "../../devel/libusb1/buildlink3.mk"
 .if ${OPSYS} == "Linux"
 .include "../../sysutils/libudev/buildlink3.mk"
 .endif

Index: pkgsrc/security/libnitrokey/distinfo
diff -u pkgsrc/security/libnitrokey/distinfo:1.2 pkgsrc/security/libnitrokey/distinfo:1.3
--- pkgsrc/security/libnitrokey/distinfo:1.2    Wed May 10 17:05:15 2023
+++ pkgsrc/security/libnitrokey/distinfo        Sun Oct 29 22:19:17 2023
@@ -1,5 +1,6 @@
-$NetBSD: distinfo,v 1.2 2023/05/10 17:05:15 nikita Exp $
+$NetBSD: distinfo,v 1.3 2023/10/29 22:19:17 adam Exp $
 
 BLAKE2s (libnitrokey-3.8.tar.gz) = d7c2b3c779809b63028c7f1f927f4b8c108d6616cdf00a09ab0c5354e5095eae
 SHA512 (libnitrokey-3.8.tar.gz) = 30f966eed77aa75057b096d18f8e88d6be28a376dfc1888e44aff80347e031a16755d30acf1bca196acc5b922778d90627ac71cba22f5cb002ba3ec058939c90
 Size (libnitrokey-3.8.tar.gz) = 118197 bytes
+SHA1 (patch-hidapi_mac_hid.c) = 1b6702b9fc58646537e67605d59bb3d40bd8fdac

Added files:

Index: pkgsrc/security/libnitrokey/patches/patch-hidapi_mac_hid.c
diff -u /dev/null pkgsrc/security/libnitrokey/patches/patch-hidapi_mac_hid.c:1.1
--- /dev/null   Sun Oct 29 22:19:17 2023
+++ pkgsrc/security/libnitrokey/patches/patch-hidapi_mac_hid.c  Sun Oct 29 22:19:17 2023
@@ -0,0 +1,1119 @@
+$NetBSD: patch-hidapi_mac_hid.c,v 1.1 2023/10/29 22:19:17 adam Exp $
+
+Copy hidapi/mac/hid.c from https://github.com/sgued/libnitrokey
+https://github.com/Nitrokey/libnitrokey/issues/140
+
+--- /dev/null  2023-10-29 21:45:29.733162000 +0000
++++ hidapi/mac/hid.c
+@@ -0,0 +1,1111 @@
++/*******************************************************
++ HIDAPI - Multi-Platform library for
++ communication with HID devices.
++
++ Alan Ott
++ Signal 11 Software
++
++ 2010-07-03
++
++ Copyright 2010, All Rights Reserved.
++
++ At the discretion of the user of this library,
++ this software may be licensed under the terms of the
++ GNU General Public License v3, a BSD-Style license, or the
++ original HIDAPI license as outlined in the LICENSE.txt,
++ LICENSE-gpl3.txt, LICENSE-bsd.txt, and LICENSE-orig.txt
++ files located at the root of the source distribution.
++ These files may also be found in the public source
++ code repository located at:
++        http://github.com/signal11/hidapi .
++********************************************************/
++
++/* See Apple Technical Note TN2187 for details on IOHidManager. */
++
++#include <IOKit/hid/IOHIDManager.h>
++#include <IOKit/hid/IOHIDKeys.h>
++#include <IOKit/IOKitLib.h>
++#include <CoreFoundation/CoreFoundation.h>
++#include <wchar.h>
++#include <locale.h>
++#include <pthread.h>
++#include <sys/time.h>
++#include <unistd.h>
++#include <dlfcn.h>
++
++#include <hidapi/hidapi.h>
++
++/* Barrier implementation because Mac OSX doesn't have pthread_barrier.
++   It also doesn't have clock_gettime(). So much for POSIX and SUSv2.
++   This implementation came from Brent Priddy and was posted on
++   StackOverflow. It is used with his permission. */
++typedef int pthread_barrierattr_t;
++typedef struct pthread_barrier {
++    pthread_mutex_t mutex;
++    pthread_cond_t cond;
++    int count;
++    int trip_count;
++} pthread_barrier_t;
++
++static int pthread_barrier_init(pthread_barrier_t *barrier, const pthread_barrierattr_t *attr, unsigned int count)
++{
++      if(count == 0) {
++              errno = EINVAL;
++              return -1;
++      }
++
++      if(pthread_mutex_init(&barrier->mutex, 0) < 0) {
++              return -1;
++      }
++      if(pthread_cond_init(&barrier->cond, 0) < 0) {
++              pthread_mutex_destroy(&barrier->mutex);
++              return -1;
++      }
++      barrier->trip_count = count;
++      barrier->count = 0;
++
++      return 0;
++}
++
++static int pthread_barrier_destroy(pthread_barrier_t *barrier)
++{
++      pthread_cond_destroy(&barrier->cond);
++      pthread_mutex_destroy(&barrier->mutex);
++      return 0;
++}
++
++static int pthread_barrier_wait(pthread_barrier_t *barrier)
++{
++      pthread_mutex_lock(&barrier->mutex);
++      ++(barrier->count);
++      if(barrier->count >= barrier->trip_count)
++      {
++              barrier->count = 0;
++              pthread_cond_broadcast(&barrier->cond);
++              pthread_mutex_unlock(&barrier->mutex);
++              return 1;
++      }
++      else
++      {
++              pthread_cond_wait(&barrier->cond, &(barrier->mutex));
++              pthread_mutex_unlock(&barrier->mutex);
++              return 0;
++      }
++}
++
++static int return_data(hid_device *dev, unsigned char *data, size_t length);
++
++/* Linked List of input reports received from the device. */
++struct input_report {
++      uint8_t *data;
++      size_t len;
++      struct input_report *next;
++};
++
++struct hid_device_ {
++      IOHIDDeviceRef device_handle;
++      int blocking;
++      int uses_numbered_reports;
++      int disconnected;
++      CFStringRef run_loop_mode;
++      CFRunLoopRef run_loop;
++      CFRunLoopSourceRef source;
++      uint8_t *input_report_buf;
++      CFIndex max_input_report_len;
++      struct input_report *input_reports;
++
++      pthread_t thread;
++      pthread_mutex_t mutex; /* Protects input_reports */
++      pthread_cond_t condition;
++      pthread_barrier_t barrier; /* Ensures correct startup sequence */
++      pthread_barrier_t shutdown_barrier; /* Ensures correct shutdown sequence */
++      int shutdown_thread;
++};
++
++static hid_device *new_hid_device(void)
++{
++      hid_device *dev = calloc(1, sizeof(hid_device));
++      dev->device_handle = NULL;
++      dev->blocking = 1;
++      dev->uses_numbered_reports = 0;
++      dev->disconnected = 0;
++      dev->run_loop_mode = NULL;
++      dev->run_loop = NULL;
++      dev->source = NULL;
++      dev->input_report_buf = NULL;
++      dev->input_reports = NULL;
++      dev->shutdown_thread = 0;
++
++      /* Thread objects */
++      pthread_mutex_init(&dev->mutex, NULL);
++      pthread_cond_init(&dev->condition, NULL);
++      pthread_barrier_init(&dev->barrier, NULL, 2);
++      pthread_barrier_init(&dev->shutdown_barrier, NULL, 2);
++
++      return dev;
++}
++
++static void free_hid_device(hid_device *dev)
++{
++      if (!dev)
++              return;
++
++      /* Delete any input reports still left over. */
++      struct input_report *rpt = dev->input_reports;
++      while (rpt) {
++              struct input_report *next = rpt->next;
++              free(rpt->data);
++              free(rpt);
++              rpt = next;
++      }
++
++      /* Free the string and the report buffer. The check for NULL
++         is necessary here as CFRelease() doesn't handle NULL like
++         free() and others do. */
++      if (dev->run_loop_mode)
++              CFRelease(dev->run_loop_mode);
++      if (dev->source)
++              CFRelease(dev->source);
++      free(dev->input_report_buf);
++
++      /* Clean up the thread objects */
++      pthread_barrier_destroy(&dev->shutdown_barrier);
++      pthread_barrier_destroy(&dev->barrier);
++      pthread_cond_destroy(&dev->condition);
++      pthread_mutex_destroy(&dev->mutex);
++
++      /* Free the structure itself. */
++      free(dev);
++}
++
++static        IOHIDManagerRef hid_mgr = 0x0;
++
++
++#if 0
++static void register_error(hid_device *device, const char *op)
++{
++
++}
++#endif
++
++
++static int32_t get_int_property(IOHIDDeviceRef device, CFStringRef key)
++{
++      CFTypeRef ref;
++      int32_t value;
++
++      ref = IOHIDDeviceGetProperty(device, key);
++      if (ref) {
++              if (CFGetTypeID(ref) == CFNumberGetTypeID()) {
++                      CFNumberGetValue((CFNumberRef) ref, kCFNumberSInt32Type, &value);
++                      return value;
++              }
++      }
++      return 0;
++}
++
++static unsigned short get_vendor_id(IOHIDDeviceRef device)
++{
++      return get_int_property(device, CFSTR(kIOHIDVendorIDKey));
++}
++
++static unsigned short get_product_id(IOHIDDeviceRef device)
++{
++      return get_int_property(device, CFSTR(kIOHIDProductIDKey));
++}
++
++static int32_t get_max_report_length(IOHIDDeviceRef device)
++{
++      return get_int_property(device, CFSTR(kIOHIDMaxInputReportSizeKey));
++}
++
++static int get_string_property(IOHIDDeviceRef device, CFStringRef prop, wchar_t *buf, size_t len)
++{
++      CFStringRef str;
++
++      if (!len)
++              return 0;
++
++      str = IOHIDDeviceGetProperty(device, prop);
++
++      buf[0] = 0;
++
++      if (str) {
++              CFIndex str_len = CFStringGetLength(str);
++              CFRange range;
++              CFIndex used_buf_len;
++              CFIndex chars_copied;
++
++              len --;
++
++              range.location = 0;
++              range.length = ((size_t)str_len > len)? len: (size_t)str_len;
++              chars_copied = CFStringGetBytes(str,
++                      range,
++                      kCFStringEncodingUTF32LE,
++                      (char)'?',
++                      FALSE,
++                      (UInt8*)buf,
++                      len * sizeof(wchar_t),
++                      &used_buf_len);
++
++              if (chars_copied == len)
++                      buf[len] = 0; /* len is decremented above */
++              else
++                      buf[chars_copied] = 0;
++
++              return 0;
++      }
++      else
++              return -1;
++
++}
++
++static int get_serial_number(IOHIDDeviceRef device, wchar_t *buf, size_t len)
++{
++      return get_string_property(device, CFSTR(kIOHIDSerialNumberKey), buf, len);
++}
++
++static int get_manufacturer_string(IOHIDDeviceRef device, wchar_t *buf, size_t len)
++{
++      return get_string_property(device, CFSTR(kIOHIDManufacturerKey), buf, len);
++}
++
++static int get_product_string(IOHIDDeviceRef device, wchar_t *buf, size_t len)
++{
++      return get_string_property(device, CFSTR(kIOHIDProductKey), buf, len);
++}
++
++
++/* Implementation of wcsdup() for Mac. */
++static wchar_t *dup_wcs(const wchar_t *s)
++{
++      size_t len = wcslen(s);
++      wchar_t *ret = malloc((len+1)*sizeof(wchar_t));
++      wcscpy(ret, s);
++
++      return ret;
++}
++
++/* hidapi_IOHIDDeviceGetService()
++ *
++ * Return the io_service_t corresponding to a given IOHIDDeviceRef, either by:
++ * - on OS X 10.6 and above, calling IOHIDDeviceGetService()
++ * - on OS X 10.5, extract it from the IOHIDDevice struct
++ */
++static io_service_t hidapi_IOHIDDeviceGetService(IOHIDDeviceRef device)
++{
++      static void *iokit_framework = NULL;
++      static io_service_t (*dynamic_IOHIDDeviceGetService)(IOHIDDeviceRef device) = NULL;
++
++      /* Use dlopen()/dlsym() to get a pointer to IOHIDDeviceGetService() if it exists.
++       * If any of these steps fail, dynamic_IOHIDDeviceGetService will be left NULL
++       * and the fallback method will be used.
++       */
++      if (iokit_framework == NULL) {
++              iokit_framework = dlopen("/System/Library/IOKit.framework/IOKit", RTLD_LAZY);
++
++              if (iokit_framework != NULL)
++                      dynamic_IOHIDDeviceGetService = dlsym(iokit_framework, "IOHIDDeviceGetService");
++      }
++
++      if (dynamic_IOHIDDeviceGetService != NULL) {
++              /* Running on OS X 10.6 and above: IOHIDDeviceGetService() exists */
++              return dynamic_IOHIDDeviceGetService(device);
++      }
++      else
++      {
++              /* Running on OS X 10.5: IOHIDDeviceGetService() doesn't exist.
++               *
++               * Be naughty and pull the service out of the IOHIDDevice.
++               * IOHIDDevice is an opaque struct not exposed to applications, but its
++               * layout is stable through all available versions of OS X.
++               * Tested and working on OS X 10.5.8 i386, x86_64, and ppc.
++               */
++              struct IOHIDDevice_internal {
++                      /* The first field of the IOHIDDevice struct is a
++                       * CFRuntimeBase (which is a private CF struct).
++                       *
++                       * a, b, and c are the 3 fields that make up a CFRuntimeBase.
++                       * See http://opensource.apple.com/source/CF/CF-476.18/CFRuntime.h
++                       *
++                       * The second field of the IOHIDDevice is the io_service_t we're looking for.
++                       */
++                      uintptr_t a;
++                      uint8_t b[4];
++#if __LP64__
++                      uint32_t c;
++#endif
++                      io_service_t service;
++              };
++              struct IOHIDDevice_internal *tmp = (struct IOHIDDevice_internal *)device;
++
++              return tmp->service;
++      }
++}
++
++/* Initialize the IOHIDManager. Return 0 for success and -1 for failure. */
++static int init_hid_manager(void)
++{
++      /* Initialize all the HID Manager Objects */
++      hid_mgr = IOHIDManagerCreate(kCFAllocatorDefault, kIOHIDOptionsTypeNone);
++      if (hid_mgr) {
++              IOHIDManagerSetDeviceMatching(hid_mgr, NULL);
++              IOHIDManagerScheduleWithRunLoop(hid_mgr, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode);
++              return 0;
++      }
++
++      return -1;
++}
++
++/* Initialize the IOHIDManager if necessary. This is the public function, and
++   it is safe to call this function repeatedly. Return 0 for success and -1
++   for failure. */
++int HID_API_EXPORT hid_init(void)
++{
++      if (!hid_mgr) {
++              return init_hid_manager();
++      }
++
++      /* Already initialized. */
++      return 0;
++}
++
++int HID_API_EXPORT hid_exit(void)
++{
++      if (hid_mgr) {
++              /* Close the HID manager. */
++              IOHIDManagerClose(hid_mgr, kIOHIDOptionsTypeNone);
++              CFRelease(hid_mgr);
++              hid_mgr = NULL;
++      }
++
++      return 0;
++}
++
++static void process_pending_events(void) {
++  return; //loop is processed in separate thread, see manager_thread
++      SInt32 res;
++      do {
++              res = CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.001, FALSE);
++  } while(res != kCFRunLoopRunFinished && res != kCFRunLoopRunTimedOut);
++}
++
++struct hid_device_info  HID_API_EXPORT *hid_enumerate(unsigned short vendor_id, unsigned short product_id)
++{
++      struct hid_device_info *root = NULL; /* return object */
++      struct hid_device_info *cur_dev = NULL;
++      CFIndex num_devices;
++      int i;
++
++      /* Set up the HID Manager if it hasn't been done */
++      if (hid_init() < 0)
++              return NULL;
++
++      /* give the IOHIDManager a chance to update itself */
++      process_pending_events();
++
++      /* Get a list of the Devices */
++      IOHIDManagerSetDeviceMatching(hid_mgr, NULL);
++      CFSetRef device_set = IOHIDManagerCopyDevices(hid_mgr);
++
++      /* Convert the list into a C array so we can iterate easily. */
++      num_devices = CFSetGetCount(device_set);
++      IOHIDDeviceRef *device_array = calloc(num_devices, sizeof(IOHIDDeviceRef));
++      CFSetGetValues(device_set, (const void **) device_array);
++
++      /* Iterate over each device, making an entry for it. */
++      for (i = 0; i < num_devices; i++) {
++              unsigned short dev_vid;
++              unsigned short dev_pid;
++              #define BUF_LEN 256
++              wchar_t buf[BUF_LEN];
++
++              IOHIDDeviceRef dev = device_array[i];
++
++        if (!dev) {
++            continue;
++        }
++              dev_vid = get_vendor_id(dev);
++              dev_pid = get_product_id(dev);
++
++              /* Check the VID/PID against the arguments */
++              if ((vendor_id == 0x0 || vendor_id == dev_vid) &&
++                  (product_id == 0x0 || product_id == dev_pid)) {
++                      struct hid_device_info *tmp;
++                      io_object_t iokit_dev;
++                      kern_return_t res;
++                      io_string_t path;
++
++                      /* VID/PID match. Create the record. */
++                      tmp = malloc(sizeof(struct hid_device_info));
++                      if (cur_dev) {
++                              cur_dev->next = tmp;
++                      }
++                      else {
++                              root = tmp;
++                      }
++                      cur_dev = tmp;
++
++                      /* Get the Usage Page and Usage for this device. */
++                      cur_dev->usage_page = get_int_property(dev, CFSTR(kIOHIDPrimaryUsagePageKey));
++                      cur_dev->usage = get_int_property(dev, CFSTR(kIOHIDPrimaryUsageKey));
++
++                      /* Fill out the record */
++                      cur_dev->next = NULL;
++
++                      /* Fill in the path (IOService plane) */
++                      iokit_dev = hidapi_IOHIDDeviceGetService(dev);
++                      res = IORegistryEntryGetPath(iokit_dev, kIOServicePlane, path);
++                      if (res == KERN_SUCCESS)
++                              cur_dev->path = strdup(path);
++                      else
++                              cur_dev->path = strdup("");
++
++                      /* Serial Number */
++                      get_serial_number(dev, buf, BUF_LEN);
++                      cur_dev->serial_number = dup_wcs(buf);
++
++                      /* Manufacturer and Product strings */
++                      get_manufacturer_string(dev, buf, BUF_LEN);
++                      cur_dev->manufacturer_string = dup_wcs(buf);
++                      get_product_string(dev, buf, BUF_LEN);
++                      cur_dev->product_string = dup_wcs(buf);
++
++                      /* VID/PID */
++                      cur_dev->vendor_id = dev_vid;
++                      cur_dev->product_id = dev_pid;
++
++                      /* Release Number */
++                      cur_dev->release_number = get_int_property(dev, CFSTR(kIOHIDVersionNumberKey));
++
++                      /* Interface Number (Unsupported on Mac)*/
++                      cur_dev->interface_number = -1;
++              }
++      }
++
++      free(device_array);
++      CFRelease(device_set);
++
++      return root;
++}
++
++void  HID_API_EXPORT hid_free_enumeration(struct hid_device_info *devs)
++{
++      /* This function is identical to the Linux version. Platform independent. */
++      struct hid_device_info *d = devs;
++      while (d) {
++              struct hid_device_info *next = d->next;
++              free(d->path);
++              free(d->serial_number);
++              free(d->manufacturer_string);
++              free(d->product_string);
++              free(d);
++              d = next;
++      }
++}
++
++hid_device * HID_API_EXPORT hid_open(unsigned short vendor_id, unsigned short product_id, const wchar_t *serial_number)
++{
++      /* This function is identical to the Linux version. Platform independent. */
++      struct hid_device_info *devs, *cur_dev;
++      const char *path_to_open = NULL;
++      hid_device * handle = NULL;
++
++      devs = hid_enumerate(vendor_id, product_id);
++      cur_dev = devs;
++      while (cur_dev) {
++              if (cur_dev->vendor_id == vendor_id &&
++                  cur_dev->product_id == product_id) {
++                      if (serial_number) {
++                              if (wcscmp(serial_number, cur_dev->serial_number) == 0) {
++                                      path_to_open = cur_dev->path;
++                                      break;
++                              }
++                      }
++                      else {
++                              path_to_open = cur_dev->path;
++                              break;
++                      }
++              }
++              cur_dev = cur_dev->next;
++      }
++
++      if (path_to_open) {
++              /* Open the device */
++              handle = hid_open_path(path_to_open);
++      }
++
++      hid_free_enumeration(devs);
++
++      return handle;
++}
++
++static void hid_device_removal_callback(void *context, IOReturn result,
++                                        void *sender)
++{
++      /* Stop the Run Loop for this device. */
++      hid_device *d = context;
++
++      d->disconnected = 1;
++      CFRunLoopStop(d->run_loop);
++}
++
++/* The Run Loop calls this function for each input report received.
++   This function puts the data into a linked list to be picked up by
++   hid_read(). */
++static void hid_report_callback(void *context, IOReturn result, void *sender,
++                         IOHIDReportType report_type, uint32_t report_id,
++                         uint8_t *report, CFIndex report_length)
++{
++      struct input_report *rpt;
++      hid_device *dev = context;
++
++      /* Make a new Input Report object */
++      rpt = calloc(1, sizeof(struct input_report));
++      rpt->data = calloc(1, report_length);
++      memcpy(rpt->data, report, report_length);
++      rpt->len = report_length;
++      rpt->next = NULL;
++
++      /* Lock this section */
++      pthread_mutex_lock(&dev->mutex);
++
++      /* Attach the new report object to the end of the list. */
++      if (dev->input_reports == NULL) {
++              /* The list is empty. Put it at the root. */
++              dev->input_reports = rpt;
++      }
++      else {
++              /* Find the end of the list and attach. */
++              struct input_report *cur = dev->input_reports;
++              int num_queued = 0;
++              while (cur->next != NULL) {
++                      cur = cur->next;
++                      num_queued++;
++              }
++              cur->next = rpt;
++
++              /* Pop one off if we've reached 30 in the queue. This
++                 way we don't grow forever if the user never reads
++                 anything from the device. */
++              if (num_queued > 30) {
++                      return_data(dev, NULL, 0);
++              }
++      }
++
++      /* Signal a waiting thread that there is data. */
++      pthread_cond_signal(&dev->condition);
++
++      /* Unlock */
++      pthread_mutex_unlock(&dev->mutex);
++
++}
++
++/* This gets called when the read_thread's run loop gets signaled by
++   hid_close(), and serves to stop the read_thread's run loop. */
++static void perform_signal_callback(void *context)
++{
++      hid_device *dev = context;
++      CFRunLoopStop(dev->run_loop); /*TODO: CFRunLoopGetCurrent()*/
++}
++
++static void *read_thread(void *param)
++{
++      hid_device *dev = param;
++      SInt32 code;
++
++      /* Move the device's run loop to this thread. */
++      IOHIDDeviceScheduleWithRunLoop(dev->device_handle, CFRunLoopGetCurrent(), dev->run_loop_mode);
++
++      /* Create the RunLoopSource which is used to signal the
++         event loop to stop when hid_close() is called. */
++      CFRunLoopSourceContext ctx;
++      memset(&ctx, 0, sizeof(ctx));
++      ctx.version = 0;
++      ctx.info = dev;
++      ctx.perform = &perform_signal_callback;
++      dev->source = CFRunLoopSourceCreate(kCFAllocatorDefault, 0/*order*/, &ctx);
++      CFRunLoopAddSource(CFRunLoopGetCurrent(), dev->source, dev->run_loop_mode);
++
++      /* Store off the Run Loop so it can be stopped from hid_close()
++         and on device disconnection. */
++      dev->run_loop = CFRunLoopGetCurrent();
++
++      /* Notify the main thread that the read thread is up and running. */
++      pthread_barrier_wait(&dev->barrier);
++
++      /* Run the Event Loop. CFRunLoopRunInMode() will dispatch HID input
++         reports into the hid_report_callback(). */
++      while (!dev->shutdown_thread && !dev->disconnected) {
++              code = CFRunLoopRunInMode(dev->run_loop_mode, 1000/*sec*/, FALSE);
++              /* Return if the device has been disconnected */
++              if (code == kCFRunLoopRunFinished) {
++                      dev->disconnected = 1;
++                      break;
++              }
++
++
++              /* Break if The Run Loop returns Finished or Stopped. */
++              if (code != kCFRunLoopRunTimedOut &&
++                  code != kCFRunLoopRunHandledSource) {
++                      /* There was some kind of error. Setting
++                         shutdown seems to make sense, but
++                         there may be something else more appropriate */
++                      dev->shutdown_thread = 1;
++                      break;
++              }
++      }
++
++      /* Now that the read thread is stopping, Wake any threads which are
++         waiting on data (in hid_read_timeout()). Do this under a mutex to
++         make sure that a thread which is about to go to sleep waiting on
++         the condition actually will go to sleep before the condition is
++         signaled. */
++      pthread_mutex_lock(&dev->mutex);
++      pthread_cond_broadcast(&dev->condition);
++      pthread_mutex_unlock(&dev->mutex);
++
++      /* Wait here until hid_close() is called and makes it past
++         the call to CFRunLoopWakeUp(). This thread still needs to
++         be valid when that function is called on the other thread. */
++      pthread_barrier_wait(&dev->shutdown_barrier);
++
++      return NULL;
++}
++
++/* hid_open_path()
++ *
++ * path must be a valid path to an IOHIDDevice in the IOService plane
++ * Example: "IOService:/AppleACPIPlatformExpert/PCI0@0/AppleACPIPCI/EHC1@1D,7/AppleUSBEHCI/PLAYSTATION(R)3 Controller@fd120000/IOUSBInterface@0/IOUSBHIDDriver"
++ */
++hid_device * HID_API_EXPORT hid_open_path(const char *path)
++{
++      hid_device *dev = NULL;
++      io_registry_entry_t entry = MACH_PORT_NULL;
++
++      dev = new_hid_device();
++
++      /* Set up the HID Manager if it hasn't been done */
++      if (hid_init() < 0)
++              return NULL;
++
++      /* Get the IORegistry entry for the given path */
++      entry = IORegistryEntryFromPath(kIOMasterPortDefault, path);
++      if (entry == MACH_PORT_NULL) {
++              /* Path wasn't valid (maybe device was removed?) */
++              goto return_error;
++      }
++
++      /* Create an IOHIDDevice for the entry */
++      dev->device_handle = IOHIDDeviceCreate(kCFAllocatorDefault, entry);
++      if (dev->device_handle == NULL) {
++              /* Error creating the HID device */
++              goto return_error;
++      }
++
++      /* Open the IOHIDDevice */
++      IOReturn ret = IOHIDDeviceOpen(dev->device_handle, 0 /*kIOHIDOptionsTypeSeizeDevice*/);
++      if (ret == kIOReturnSuccess) {
++              char str[32];
++
++              /* Create the buffers for receiving data */
++              dev->max_input_report_len = (CFIndex) get_max_report_length(dev->device_handle);
++              dev->input_report_buf = calloc(dev->max_input_report_len, sizeof(uint8_t));
++
++              /* Create the Run Loop Mode for this device.
++                 printing the reference seems to work. */
++              sprintf(str, "HIDAPI_%p", dev->device_handle);
++              dev->run_loop_mode =
++                      CFStringCreateWithCString(NULL, str, kCFStringEncodingASCII);
++
++              /* Attach the device to a Run Loop */
++              IOHIDDeviceRegisterInputReportCallback(
++                      dev->device_handle, dev->input_report_buf, dev->max_input_report_len,
++                      &hid_report_callback, dev);
++              IOHIDDeviceRegisterRemovalCallback(dev->device_handle, hid_device_removal_callback, dev);
++
++              /* Start the read thread */
++              pthread_create(&dev->thread, NULL, read_thread, dev);
++
++              /* Wait here for the read thread to be initialized. */
++              pthread_barrier_wait(&dev->barrier);
++
++              IOObjectRelease(entry);
++              return dev;
++      }
++      else {
++              goto return_error;
++      }
++
++return_error:
++      if (dev->device_handle != NULL)
++              CFRelease(dev->device_handle);
++
++      if (entry != MACH_PORT_NULL)
++              IOObjectRelease(entry);
++
++      free_hid_device(dev);
++      return NULL;
++}
++
++static int set_report(hid_device *dev, IOHIDReportType type, const unsigned char *data, size_t length)
++{
++      const unsigned char *data_to_send;
++      size_t length_to_send;
++      IOReturn res;
++
++      /* Return if the device has been disconnected. */
++      if (dev->disconnected)
++              return -1;
++
++      if (data[0] == 0x0) {
++              /* Not using numbered Reports.
++                 Don't send the report number. */
++              data_to_send = data+1;
++              length_to_send = length-1;
++      }
++      else {
++              /* Using numbered Reports.
++                 Send the Report Number */
++              data_to_send = data;
++              length_to_send = length;
++      }
++
++      if (!dev->disconnected) {
++              res = IOHIDDeviceSetReport(dev->device_handle,
++                                         type,
++                                         data[0], /* Report ID*/
++                                         data_to_send, length_to_send);
++
++              if (res == kIOReturnSuccess) {
++                      return length;
++              }
++              else
++                      return -1;
++      }
++
++      return -1;
++}
++
++int HID_API_EXPORT hid_write(hid_device *dev, const unsigned char *data, size_t length)
++{
++      return set_report(dev, kIOHIDReportTypeOutput, data, length);
++}
++
++/* Helper function, so that this isn't duplicated in hid_read(). */
++static int return_data(hid_device *dev, unsigned char *data, size_t length)
++{
++      /* Copy the data out of the linked list item (rpt) into the
++         return buffer (data), and delete the liked list item. */
++      struct input_report *rpt = dev->input_reports;
++      size_t len = (length < rpt->len)? length: rpt->len;
++      memcpy(data, rpt->data, len);
++      dev->input_reports = rpt->next;
++      free(rpt->data);
++      free(rpt);
++      return len;
++}
++
++static int cond_wait(const hid_device *dev, pthread_cond_t *cond, pthread_mutex_t *mutex)
++{
++      while (!dev->input_reports) {
++              int res = pthread_cond_wait(cond, mutex);
++              if (res != 0)
++                      return res;
++
++              /* A res of 0 means we may have been signaled or it may
++                 be a spurious wakeup. Check to see that there's acutally
++                 data in the queue before returning, and if not, go back
++                 to sleep. See the pthread_cond_timedwait() man page for
++                 details. */
++
++              if (dev->shutdown_thread || dev->disconnected)
++                      return -1;
++      }
++
++      return 0;
++}
++
++static int cond_timedwait(const hid_device *dev, pthread_cond_t *cond, pthread_mutex_t *mutex, const struct timespec *abstime)
++{
++      while (!dev->input_reports) {
++              int res = pthread_cond_timedwait(cond, mutex, abstime);
++              if (res != 0)
++                      return res;
++
++              /* A res of 0 means we may have been signaled or it may
++                 be a spurious wakeup. Check to see that there's acutally
++                 data in the queue before returning, and if not, go back
++                 to sleep. See the pthread_cond_timedwait() man page for
++                 details. */
++
++              if (dev->shutdown_thread || dev->disconnected)
++                      return -1;
++      }
++
++      return 0;
++
++}
++
++int HID_API_EXPORT hid_read_timeout(hid_device *dev, unsigned char *data, size_t length, int milliseconds)
++{
++      int bytes_read = -1;
++
++      /* Lock the access to the report list. */
++      pthread_mutex_lock(&dev->mutex);
++
++      /* There's an input report queued up. Return it. */
++      if (dev->input_reports) {
++              /* Return the first one */
++              bytes_read = return_data(dev, data, length);
++              goto ret;
++      }
++
++      /* Return if the device has been disconnected. */
++      if (dev->disconnected) {
++              bytes_read = -1;
++              goto ret;
++      }
++
++      if (dev->shutdown_thread) {
++              /* This means the device has been closed (or there
++                 has been an error. An error code of -1 should
++                 be returned. */
++              bytes_read = -1;
++              goto ret;
++      }
++
++      /* There is no data. Go to sleep and wait for data. */
++
++      if (milliseconds == -1) {
++              /* Blocking */
++              int res;
++              res = cond_wait(dev, &dev->condition, &dev->mutex);
++              if (res == 0)
++                      bytes_read = return_data(dev, data, length);
++              else {
++                      /* There was an error, or a device disconnection. */
++                      bytes_read = -1;
++              }
++      }
++      else if (milliseconds > 0) {
++              /* Non-blocking, but called with timeout. */
++              int res;
++              struct timespec ts;
++              struct timeval tv;
++              gettimeofday(&tv, NULL);
++              TIMEVAL_TO_TIMESPEC(&tv, &ts);
++              ts.tv_sec += milliseconds / 1000;
++              ts.tv_nsec += (milliseconds % 1000) * 1000000;
++              if (ts.tv_nsec >= 1000000000L) {
++                      ts.tv_sec++;
++                      ts.tv_nsec -= 1000000000L;
++              }
++
++              res = cond_timedwait(dev, &dev->condition, &dev->mutex, &ts);
++              if (res == 0)
++                      bytes_read = return_data(dev, data, length);
++              else if (res == ETIMEDOUT)
++                      bytes_read = 0;
++              else
++                      bytes_read = -1;
++      }
++      else {
++              /* Purely non-blocking */
++              bytes_read = 0;
++      }
++
++ret:
++      /* Unlock */
++      pthread_mutex_unlock(&dev->mutex);
++      return bytes_read;
++}
++
++int HID_API_EXPORT hid_read(hid_device *dev, unsigned char *data, size_t length)
++{
++      return hid_read_timeout(dev, data, length, (dev->blocking)? -1: 0);
++}
++
++int HID_API_EXPORT hid_set_nonblocking(hid_device *dev, int nonblock)
++{
++      /* All Nonblocking operation is handled by the library. */
++      dev->blocking = !nonblock;
++
++      return 0;
++}
++
++int HID_API_EXPORT hid_send_feature_report(hid_device *dev, const unsigned char *data, size_t length)
++{
++      return set_report(dev, kIOHIDReportTypeFeature, data, length);
++}
++
++int HID_API_EXPORT hid_get_feature_report(hid_device *dev, unsigned char *data, size_t length)
++{
++      CFIndex len = length-1;
++      IOReturn res;
++
++      /* Return if the device has been unplugged. */
++      if (dev->disconnected)
++              return -1;
++
++      res = IOHIDDeviceGetReport(dev->device_handle,
++                                 kIOHIDReportTypeFeature,
++                                 data[0], /* Report ID */
++                                 data+1, &len);
++      if (res == kIOReturnSuccess)
++              return len;
++      else
++              return -1;
++}
++
++
++void HID_API_EXPORT hid_close(hid_device *dev)
++{
++      if (!dev)
++              return;
++
++      /* Disconnect the report callback before close. */
++      if (!dev->disconnected) {
++              IOHIDDeviceRegisterInputReportCallback(
++                      dev->device_handle, dev->input_report_buf, dev->max_input_report_len,
++                      NULL, dev);
++              IOHIDDeviceRegisterRemovalCallback(dev->device_handle, NULL, dev);
++              IOHIDDeviceUnscheduleFromRunLoop(dev->device_handle, dev->run_loop, dev->run_loop_mode);
++              IOHIDDeviceScheduleWithRunLoop(dev->device_handle, CFRunLoopGetMain(), kCFRunLoopDefaultMode);
++      }
++
++      /* Cause read_thread() to stop. */
++      dev->shutdown_thread = 1;
++
++      /* Wake up the run thread's event loop so that the thread can exit. */
++      CFRunLoopSourceSignal(dev->source);
++      CFRunLoopWakeUp(dev->run_loop);
++
++      /* Notify the read thread that it can shut down now. */
++      pthread_barrier_wait(&dev->shutdown_barrier);
++
++      /* Wait for read_thread() to end. */
++      pthread_join(dev->thread, NULL);
++
++      /* Close the OS handle to the device, but only if it's not
++         been unplugged. If it's been unplugged, then calling
++         IOHIDDeviceClose() will crash. */
++      if (!dev->disconnected) {
++              IOHIDDeviceClose(dev->device_handle, 0 /*kIOHIDOptionsTypeSeizeDevice*/);
++      }
++
++      /* Clear out the queue of received reports. */
++      pthread_mutex_lock(&dev->mutex);
++      while (dev->input_reports) {
++              return_data(dev, NULL, 0);
++      }
++      pthread_mutex_unlock(&dev->mutex);
++      CFRelease(dev->device_handle);
++
++      free_hid_device(dev);
++}
++
++int HID_API_EXPORT_CALL hid_get_manufacturer_string(hid_device *dev, wchar_t *string, size_t maxlen)
++{
++      return get_manufacturer_string(dev->device_handle, string, maxlen);
++}
++
++int HID_API_EXPORT_CALL hid_get_product_string(hid_device *dev, wchar_t *string, size_t maxlen)
++{
++      return get_product_string(dev->device_handle, string, maxlen);
++}
++
++int HID_API_EXPORT_CALL hid_get_serial_number_string(hid_device *dev, wchar_t *string, size_t maxlen)
++{
++      return get_serial_number(dev->device_handle, string, maxlen);
++}
++
++int HID_API_EXPORT_CALL hid_get_indexed_string(hid_device *dev, int string_index, wchar_t *string, size_t maxlen)
++{
++      /* TODO: */
++
++      return 0;
++}
++
++
++HID_API_EXPORT const wchar_t * HID_API_CALL  hid_error(hid_device *dev)
++{
++      /* TODO: */
++
++      return NULL;
++}
++
++
++
++
++
++
++
++#if 0
++static int32_t get_location_id(IOHIDDeviceRef device)
++{
++      return get_int_property(device, CFSTR(kIOHIDLocationIDKey));
++}
++
++static int32_t get_usage(IOHIDDeviceRef device)
++{
++      int32_t res;
++      res = get_int_property(device, CFSTR(kIOHIDDeviceUsageKey));
++      if (!res)
++              res = get_int_property(device, CFSTR(kIOHIDPrimaryUsageKey));
++      return res;
++}
++
++static int32_t get_usage_page(IOHIDDeviceRef device)
++{
++      int32_t res;
++      res = get_int_property(device, CFSTR(kIOHIDDeviceUsagePageKey));
++      if (!res)
++              res = get_int_property(device, CFSTR(kIOHIDPrimaryUsagePageKey));
++      return res;
++}
++
++static int get_transport(IOHIDDeviceRef device, wchar_t *buf, size_t len)
++{
++      return get_string_property(device, CFSTR(kIOHIDTransportKey), buf, len);
++}
++
++
++int main(void)
++{
++      IOHIDManagerRef mgr;
++      int i;
++
++      mgr = IOHIDManagerCreate(kCFAllocatorDefault, kIOHIDOptionsTypeNone);
++      IOHIDManagerSetDeviceMatching(mgr, NULL);
++      IOHIDManagerOpen(mgr, kIOHIDOptionsTypeNone);
++
++      CFSetRef device_set = IOHIDManagerCopyDevices(mgr);
++
++      CFIndex num_devices = CFSetGetCount(device_set);
++      IOHIDDeviceRef *device_array = calloc(num_devices, sizeof(IOHIDDeviceRef));
++      CFSetGetValues(device_set, (const void **) device_array);
++
++      for (i = 0; i < num_devices; i++) {
++              IOHIDDeviceRef dev = device_array[i];
++              printf("Device: %p\n", dev);
++              printf("  %04hx %04hx\n", get_vendor_id(dev), get_product_id(dev));
++
++              wchar_t serial[256], buf[256];
++              char cbuf[256];
++              get_serial_number(dev, serial, 256);
++
++
++              printf("  Serial: %ls\n", serial);
++              printf("  Loc: %ld\n", get_location_id(dev));
++              get_transport(dev, buf, 256);
++              printf("  Trans: %ls\n", buf);
++              make_path(dev, cbuf, 256);
++              printf("  Path: %s\n", cbuf);
++
++      }
++
++      return 0;
++}
++#endif



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