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-rw-r--r--Utilities/cmlibuv/src/win/util.c1380
1 files changed, 1380 insertions, 0 deletions
diff --git a/Utilities/cmlibuv/src/win/util.c b/Utilities/cmlibuv/src/win/util.c
new file mode 100644
index 0000000..4a2e501
--- /dev/null
+++ b/Utilities/cmlibuv/src/win/util.c
@@ -0,0 +1,1380 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include <assert.h>
+#include <direct.h>
+#include <limits.h>
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
+#include <wchar.h>
+
+#include "uv.h"
+#include "internal.h"
+
+#include <winsock2.h>
+#include <winperf.h>
+#include <iphlpapi.h>
+#include <psapi.h>
+#include <tlhelp32.h>
+#include <windows.h>
+#include <userenv.h>
+
+
+/*
+ * Max title length; the only thing MSDN tells us about the maximum length
+ * of the console title is that it is smaller than 64K. However in practice
+ * it is much smaller, and there is no way to figure out what the exact length
+ * of the title is or can be, at least not on XP. To make it even more
+ * annoying, GetConsoleTitle fails when the buffer to be read into is bigger
+ * than the actual maximum length. So we make a conservative guess here;
+ * just don't put the novel you're writing in the title, unless the plot
+ * survives truncation.
+ */
+#define MAX_TITLE_LENGTH 8192
+
+/* The number of nanoseconds in one second. */
+#define UV__NANOSEC 1000000000
+
+/* Max user name length, from iphlpapi.h */
+#ifndef UNLEN
+# define UNLEN 256
+#endif
+
+/* Cached copy of the process title, plus a mutex guarding it. */
+static char *process_title;
+static CRITICAL_SECTION process_title_lock;
+
+/* Cached copy of the process id, written once. */
+static DWORD current_pid = 0;
+
+
+/* Interval (in seconds) of the high-resolution clock. */
+static double hrtime_interval_ = 0;
+
+
+/*
+ * One-time initialization code for functionality defined in util.c.
+ */
+void uv__util_init() {
+ LARGE_INTEGER perf_frequency;
+
+ /* Initialize process title access mutex. */
+ InitializeCriticalSection(&process_title_lock);
+
+ /* Retrieve high-resolution timer frequency
+ * and precompute its reciprocal.
+ */
+ if (QueryPerformanceFrequency(&perf_frequency)) {
+ hrtime_interval_ = 1.0 / perf_frequency.QuadPart;
+ } else {
+ hrtime_interval_= 0;
+ }
+}
+
+
+int uv_exepath(char* buffer, size_t* size_ptr) {
+ int utf8_len, utf16_buffer_len, utf16_len;
+ WCHAR* utf16_buffer;
+ int err;
+
+ if (buffer == NULL || size_ptr == NULL || *size_ptr == 0) {
+ return UV_EINVAL;
+ }
+
+ if (*size_ptr > 32768) {
+ /* Windows paths can never be longer than this. */
+ utf16_buffer_len = 32768;
+ } else {
+ utf16_buffer_len = (int) *size_ptr;
+ }
+
+ utf16_buffer = (WCHAR*) uv__malloc(sizeof(WCHAR) * utf16_buffer_len);
+ if (!utf16_buffer) {
+ return UV_ENOMEM;
+ }
+
+ /* Get the path as UTF-16. */
+ utf16_len = GetModuleFileNameW(NULL, utf16_buffer, utf16_buffer_len);
+ if (utf16_len <= 0) {
+ err = GetLastError();
+ goto error;
+ }
+
+ /* utf16_len contains the length, *not* including the terminating null. */
+ utf16_buffer[utf16_len] = L'\0';
+
+ /* Convert to UTF-8 */
+ utf8_len = WideCharToMultiByte(CP_UTF8,
+ 0,
+ utf16_buffer,
+ -1,
+ buffer,
+ (int) *size_ptr,
+ NULL,
+ NULL);
+ if (utf8_len == 0) {
+ err = GetLastError();
+ goto error;
+ }
+
+ uv__free(utf16_buffer);
+
+ /* utf8_len *does* include the terminating null at this point, but the */
+ /* returned size shouldn't. */
+ *size_ptr = utf8_len - 1;
+ return 0;
+
+ error:
+ uv__free(utf16_buffer);
+ return uv_translate_sys_error(err);
+}
+
+
+int uv_cwd(char* buffer, size_t* size) {
+ DWORD utf16_len;
+ WCHAR utf16_buffer[MAX_PATH];
+ int r;
+
+ if (buffer == NULL || size == NULL) {
+ return UV_EINVAL;
+ }
+
+ utf16_len = GetCurrentDirectoryW(MAX_PATH, utf16_buffer);
+ if (utf16_len == 0) {
+ return uv_translate_sys_error(GetLastError());
+ } else if (utf16_len > MAX_PATH) {
+ /* This should be impossible; however the CRT has a code path to deal */
+ /* with this scenario, so I added a check anyway. */
+ return UV_EIO;
+ }
+
+ /* utf16_len contains the length, *not* including the terminating null. */
+ utf16_buffer[utf16_len] = L'\0';
+
+ /* The returned directory should not have a trailing slash, unless it */
+ /* points at a drive root, like c:\. Remove it if needed.*/
+ if (utf16_buffer[utf16_len - 1] == L'\\' &&
+ !(utf16_len == 3 && utf16_buffer[1] == L':')) {
+ utf16_len--;
+ utf16_buffer[utf16_len] = L'\0';
+ }
+
+ /* Check how much space we need */
+ r = WideCharToMultiByte(CP_UTF8,
+ 0,
+ utf16_buffer,
+ -1,
+ NULL,
+ 0,
+ NULL,
+ NULL);
+ if (r == 0) {
+ return uv_translate_sys_error(GetLastError());
+ } else if (r > (int) *size) {
+ *size = r;
+ return UV_ENOBUFS;
+ }
+
+ /* Convert to UTF-8 */
+ r = WideCharToMultiByte(CP_UTF8,
+ 0,
+ utf16_buffer,
+ -1,
+ buffer,
+ *size > INT_MAX ? INT_MAX : (int) *size,
+ NULL,
+ NULL);
+ if (r == 0) {
+ return uv_translate_sys_error(GetLastError());
+ }
+
+ *size = r - 1;
+ return 0;
+}
+
+
+int uv_chdir(const char* dir) {
+ WCHAR utf16_buffer[MAX_PATH];
+ size_t utf16_len;
+ WCHAR drive_letter, env_var[4];
+
+ if (dir == NULL) {
+ return UV_EINVAL;
+ }
+
+ if (MultiByteToWideChar(CP_UTF8,
+ 0,
+ dir,
+ -1,
+ utf16_buffer,
+ MAX_PATH) == 0) {
+ DWORD error = GetLastError();
+ /* The maximum length of the current working directory is 260 chars, */
+ /* including terminating null. If it doesn't fit, the path name must be */
+ /* too long. */
+ if (error == ERROR_INSUFFICIENT_BUFFER) {
+ return UV_ENAMETOOLONG;
+ } else {
+ return uv_translate_sys_error(error);
+ }
+ }
+
+ if (!SetCurrentDirectoryW(utf16_buffer)) {
+ return uv_translate_sys_error(GetLastError());
+ }
+
+ /* Windows stores the drive-local path in an "hidden" environment variable, */
+ /* which has the form "=C:=C:\Windows". SetCurrentDirectory does not */
+ /* update this, so we'll have to do it. */
+ utf16_len = GetCurrentDirectoryW(MAX_PATH, utf16_buffer);
+ if (utf16_len == 0) {
+ return uv_translate_sys_error(GetLastError());
+ } else if (utf16_len > MAX_PATH) {
+ return UV_EIO;
+ }
+
+ /* The returned directory should not have a trailing slash, unless it */
+ /* points at a drive root, like c:\. Remove it if needed. */
+ if (utf16_buffer[utf16_len - 1] == L'\\' &&
+ !(utf16_len == 3 && utf16_buffer[1] == L':')) {
+ utf16_len--;
+ utf16_buffer[utf16_len] = L'\0';
+ }
+
+ if (utf16_len < 2 || utf16_buffer[1] != L':') {
+ /* Doesn't look like a drive letter could be there - probably an UNC */
+ /* path. TODO: Need to handle win32 namespaces like \\?\C:\ ? */
+ drive_letter = 0;
+ } else if (utf16_buffer[0] >= L'A' && utf16_buffer[0] <= L'Z') {
+ drive_letter = utf16_buffer[0];
+ } else if (utf16_buffer[0] >= L'a' && utf16_buffer[0] <= L'z') {
+ /* Convert to uppercase. */
+ drive_letter = utf16_buffer[0] - L'a' + L'A';
+ } else {
+ /* Not valid. */
+ drive_letter = 0;
+ }
+
+ if (drive_letter != 0) {
+ /* Construct the environment variable name and set it. */
+ env_var[0] = L'=';
+ env_var[1] = drive_letter;
+ env_var[2] = L':';
+ env_var[3] = L'\0';
+
+ if (!SetEnvironmentVariableW(env_var, utf16_buffer)) {
+ return uv_translate_sys_error(GetLastError());
+ }
+ }
+
+ return 0;
+}
+
+
+void uv_loadavg(double avg[3]) {
+ /* Can't be implemented */
+ avg[0] = avg[1] = avg[2] = 0;
+}
+
+
+uint64_t uv_get_free_memory(void) {
+ MEMORYSTATUSEX memory_status;
+ memory_status.dwLength = sizeof(memory_status);
+
+ if (!GlobalMemoryStatusEx(&memory_status)) {
+ return -1;
+ }
+
+ return (uint64_t)memory_status.ullAvailPhys;
+}
+
+
+uint64_t uv_get_total_memory(void) {
+ MEMORYSTATUSEX memory_status;
+ memory_status.dwLength = sizeof(memory_status);
+
+ if (!GlobalMemoryStatusEx(&memory_status)) {
+ return -1;
+ }
+
+ return (uint64_t)memory_status.ullTotalPhys;
+}
+
+
+int uv_parent_pid() {
+ int parent_pid = -1;
+ HANDLE handle;
+ PROCESSENTRY32 pe;
+ DWORD current_pid = GetCurrentProcessId();
+
+ pe.dwSize = sizeof(PROCESSENTRY32);
+ handle = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
+
+ if (Process32First(handle, &pe)) {
+ do {
+ if (pe.th32ProcessID == current_pid) {
+ parent_pid = pe.th32ParentProcessID;
+ break;
+ }
+ } while( Process32Next(handle, &pe));
+ }
+
+ CloseHandle(handle);
+ return parent_pid;
+}
+
+
+int uv_current_pid() {
+ if (current_pid == 0) {
+ current_pid = GetCurrentProcessId();
+ }
+ return current_pid;
+}
+
+
+char** uv_setup_args(int argc, char** argv) {
+ return argv;
+}
+
+
+int uv_set_process_title(const char* title) {
+ int err;
+ int length;
+ WCHAR* title_w = NULL;
+
+ uv__once_init();
+
+ /* Find out how big the buffer for the wide-char title must be */
+ length = MultiByteToWideChar(CP_UTF8, 0, title, -1, NULL, 0);
+ if (!length) {
+ err = GetLastError();
+ goto done;
+ }
+
+ /* Convert to wide-char string */
+ title_w = (WCHAR*)uv__malloc(sizeof(WCHAR) * length);
+ if (!title_w) {
+ uv_fatal_error(ERROR_OUTOFMEMORY, "uv__malloc");
+ }
+
+ length = MultiByteToWideChar(CP_UTF8, 0, title, -1, title_w, length);
+ if (!length) {
+ err = GetLastError();
+ goto done;
+ }
+
+ /* If the title must be truncated insert a \0 terminator there */
+ if (length > MAX_TITLE_LENGTH) {
+ title_w[MAX_TITLE_LENGTH - 1] = L'\0';
+ }
+
+ if (!SetConsoleTitleW(title_w)) {
+ err = GetLastError();
+ goto done;
+ }
+
+ EnterCriticalSection(&process_title_lock);
+ uv__free(process_title);
+ process_title = uv__strdup(title);
+ LeaveCriticalSection(&process_title_lock);
+
+ err = 0;
+
+done:
+ uv__free(title_w);
+ return uv_translate_sys_error(err);
+}
+
+
+static int uv__get_process_title() {
+ WCHAR title_w[MAX_TITLE_LENGTH];
+
+ if (!GetConsoleTitleW(title_w, sizeof(title_w) / sizeof(WCHAR))) {
+ return -1;
+ }
+
+ if (uv__convert_utf16_to_utf8(title_w, -1, &process_title) != 0)
+ return -1;
+
+ return 0;
+}
+
+
+int uv_get_process_title(char* buffer, size_t size) {
+ size_t len;
+
+ if (buffer == NULL || size == 0)
+ return UV_EINVAL;
+
+ uv__once_init();
+
+ EnterCriticalSection(&process_title_lock);
+ /*
+ * If the process_title was never read before nor explicitly set,
+ * we must query it with getConsoleTitleW
+ */
+ if (!process_title && uv__get_process_title() == -1) {
+ LeaveCriticalSection(&process_title_lock);
+ return uv_translate_sys_error(GetLastError());
+ }
+
+ assert(process_title);
+ len = strlen(process_title) + 1;
+
+ if (size < len) {
+ LeaveCriticalSection(&process_title_lock);
+ return UV_ENOBUFS;
+ }
+
+ memcpy(buffer, process_title, len);
+ LeaveCriticalSection(&process_title_lock);
+
+ return 0;
+}
+
+
+uint64_t uv_hrtime(void) {
+ uv__once_init();
+ return uv__hrtime(UV__NANOSEC);
+}
+
+uint64_t uv__hrtime(double scale) {
+ LARGE_INTEGER counter;
+
+ /* If the performance interval is zero, there's no support. */
+ if (hrtime_interval_ == 0) {
+ return 0;
+ }
+
+ if (!QueryPerformanceCounter(&counter)) {
+ return 0;
+ }
+
+ /* Because we have no guarantee about the order of magnitude of the
+ * performance counter interval, integer math could cause this computation
+ * to overflow. Therefore we resort to floating point math.
+ */
+ return (uint64_t) ((double) counter.QuadPart * hrtime_interval_ * scale);
+}
+
+
+int uv_resident_set_memory(size_t* rss) {
+ HANDLE current_process;
+ PROCESS_MEMORY_COUNTERS pmc;
+
+ current_process = GetCurrentProcess();
+
+ if (!GetProcessMemoryInfo(current_process, &pmc, sizeof(pmc))) {
+ return uv_translate_sys_error(GetLastError());
+ }
+
+ *rss = pmc.WorkingSetSize;
+
+ return 0;
+}
+
+
+int uv_uptime(double* uptime) {
+ BYTE stack_buffer[4096];
+ BYTE* malloced_buffer = NULL;
+ BYTE* buffer = (BYTE*) stack_buffer;
+ size_t buffer_size = sizeof(stack_buffer);
+ DWORD data_size;
+
+ PERF_DATA_BLOCK* data_block;
+ PERF_OBJECT_TYPE* object_type;
+ PERF_COUNTER_DEFINITION* counter_definition;
+
+ DWORD i;
+
+ for (;;) {
+ LONG result;
+
+ data_size = (DWORD) buffer_size;
+ result = RegQueryValueExW(HKEY_PERFORMANCE_DATA,
+ L"2",
+ NULL,
+ NULL,
+ buffer,
+ &data_size);
+ if (result == ERROR_SUCCESS) {
+ break;
+ } else if (result != ERROR_MORE_DATA) {
+ *uptime = 0;
+ return uv_translate_sys_error(result);
+ }
+
+ buffer_size *= 2;
+ /* Don't let the buffer grow infinitely. */
+ if (buffer_size > 1 << 20) {
+ goto internalError;
+ }
+
+ uv__free(malloced_buffer);
+
+ buffer = malloced_buffer = (BYTE*) uv__malloc(buffer_size);
+ if (malloced_buffer == NULL) {
+ *uptime = 0;
+ return UV_ENOMEM;
+ }
+ }
+
+ if (data_size < sizeof(*data_block))
+ goto internalError;
+
+ data_block = (PERF_DATA_BLOCK*) buffer;
+
+ if (wmemcmp(data_block->Signature, L"PERF", 4) != 0)
+ goto internalError;
+
+ if (data_size < data_block->HeaderLength + sizeof(*object_type))
+ goto internalError;
+
+ object_type = (PERF_OBJECT_TYPE*) (buffer + data_block->HeaderLength);
+
+ if (object_type->NumInstances != PERF_NO_INSTANCES)
+ goto internalError;
+
+ counter_definition = (PERF_COUNTER_DEFINITION*) (buffer +
+ data_block->HeaderLength + object_type->HeaderLength);
+ for (i = 0; i < object_type->NumCounters; i++) {
+ if ((BYTE*) counter_definition + sizeof(*counter_definition) >
+ buffer + data_size) {
+ break;
+ }
+
+ if (counter_definition->CounterNameTitleIndex == 674 &&
+ counter_definition->CounterSize == sizeof(uint64_t)) {
+ if (counter_definition->CounterOffset + sizeof(uint64_t) > data_size ||
+ !(counter_definition->CounterType & PERF_OBJECT_TIMER)) {
+ goto internalError;
+ } else {
+ BYTE* address = (BYTE*) object_type + object_type->DefinitionLength +
+ counter_definition->CounterOffset;
+ uint64_t value = *((uint64_t*) address);
+ *uptime = (double) (object_type->PerfTime.QuadPart - value) /
+ (double) object_type->PerfFreq.QuadPart;
+ uv__free(malloced_buffer);
+ return 0;
+ }
+ }
+
+ counter_definition = (PERF_COUNTER_DEFINITION*)
+ ((BYTE*) counter_definition + counter_definition->ByteLength);
+ }
+
+ /* If we get here, the uptime value was not found. */
+ uv__free(malloced_buffer);
+ *uptime = 0;
+ return UV_ENOSYS;
+
+ internalError:
+ uv__free(malloced_buffer);
+ *uptime = 0;
+ return UV_EIO;
+}
+
+
+int uv_cpu_info(uv_cpu_info_t** cpu_infos_ptr, int* cpu_count_ptr) {
+ uv_cpu_info_t* cpu_infos;
+ SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION* sppi;
+ DWORD sppi_size;
+ SYSTEM_INFO system_info;
+ DWORD cpu_count, r, i;
+ NTSTATUS status;
+ ULONG result_size;
+ int err;
+ uv_cpu_info_t* cpu_info;
+
+ cpu_infos = NULL;
+ cpu_count = 0;
+ sppi = NULL;
+
+ uv__once_init();
+
+ GetSystemInfo(&system_info);
+ cpu_count = system_info.dwNumberOfProcessors;
+
+ cpu_infos = uv__calloc(cpu_count, sizeof *cpu_infos);
+ if (cpu_infos == NULL) {
+ err = ERROR_OUTOFMEMORY;
+ goto error;
+ }
+
+ sppi_size = cpu_count * sizeof(*sppi);
+ sppi = uv__malloc(sppi_size);
+ if (sppi == NULL) {
+ err = ERROR_OUTOFMEMORY;
+ goto error;
+ }
+
+ status = pNtQuerySystemInformation(SystemProcessorPerformanceInformation,
+ sppi,
+ sppi_size,
+ &result_size);
+ if (!NT_SUCCESS(status)) {
+ err = pRtlNtStatusToDosError(status);
+ goto error;
+ }
+
+ assert(result_size == sppi_size);
+
+ for (i = 0; i < cpu_count; i++) {
+ WCHAR key_name[128];
+ HKEY processor_key;
+ DWORD cpu_speed;
+ DWORD cpu_speed_size = sizeof(cpu_speed);
+ WCHAR cpu_brand[256];
+ DWORD cpu_brand_size = sizeof(cpu_brand);
+ size_t len;
+
+ len = _snwprintf(key_name,
+ ARRAY_SIZE(key_name),
+ L"HARDWARE\\DESCRIPTION\\System\\CentralProcessor\\%d",
+ i);
+
+ assert(len > 0 && len < ARRAY_SIZE(key_name));
+
+ r = RegOpenKeyExW(HKEY_LOCAL_MACHINE,
+ key_name,
+ 0,
+ KEY_QUERY_VALUE,
+ &processor_key);
+ if (r != ERROR_SUCCESS) {
+ err = GetLastError();
+ goto error;
+ }
+
+ if (RegQueryValueExW(processor_key,
+ L"~MHz",
+ NULL,
+ NULL,
+ (BYTE*) &cpu_speed,
+ &cpu_speed_size) != ERROR_SUCCESS) {
+ err = GetLastError();
+ RegCloseKey(processor_key);
+ goto error;
+ }
+
+ if (RegQueryValueExW(processor_key,
+ L"ProcessorNameString",
+ NULL,
+ NULL,
+ (BYTE*) &cpu_brand,
+ &cpu_brand_size) != ERROR_SUCCESS) {
+ err = GetLastError();
+ RegCloseKey(processor_key);
+ goto error;
+ }
+
+ RegCloseKey(processor_key);
+
+ cpu_info = &cpu_infos[i];
+ cpu_info->speed = cpu_speed;
+ cpu_info->cpu_times.user = sppi[i].UserTime.QuadPart / 10000;
+ cpu_info->cpu_times.sys = (sppi[i].KernelTime.QuadPart -
+ sppi[i].IdleTime.QuadPart) / 10000;
+ cpu_info->cpu_times.idle = sppi[i].IdleTime.QuadPart / 10000;
+ cpu_info->cpu_times.irq = sppi[i].InterruptTime.QuadPart / 10000;
+ cpu_info->cpu_times.nice = 0;
+
+ uv__convert_utf16_to_utf8(cpu_brand,
+ cpu_brand_size / sizeof(WCHAR),
+ &(cpu_info->model));
+ }
+
+ uv__free(sppi);
+
+ *cpu_count_ptr = cpu_count;
+ *cpu_infos_ptr = cpu_infos;
+
+ return 0;
+
+ error:
+ /* This is safe because the cpu_infos array is zeroed on allocation. */
+ for (i = 0; i < cpu_count; i++)
+ uv__free(cpu_infos[i].model);
+
+ uv__free(cpu_infos);
+ uv__free(sppi);
+
+ return uv_translate_sys_error(err);
+}
+
+
+void uv_free_cpu_info(uv_cpu_info_t* cpu_infos, int count) {
+ int i;
+
+ for (i = 0; i < count; i++) {
+ uv__free(cpu_infos[i].model);
+ }
+
+ uv__free(cpu_infos);
+}
+
+
+static int is_windows_version_or_greater(DWORD os_major,
+ DWORD os_minor,
+ WORD service_pack_major,
+ WORD service_pack_minor) {
+ OSVERSIONINFOEX osvi;
+ DWORDLONG condition_mask = 0;
+ int op = VER_GREATER_EQUAL;
+
+ /* Initialize the OSVERSIONINFOEX structure. */
+ ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));
+ osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
+ osvi.dwMajorVersion = os_major;
+ osvi.dwMinorVersion = os_minor;
+ osvi.wServicePackMajor = service_pack_major;
+ osvi.wServicePackMinor = service_pack_minor;
+
+ /* Initialize the condition mask. */
+ VER_SET_CONDITION(condition_mask, VER_MAJORVERSION, op);
+ VER_SET_CONDITION(condition_mask, VER_MINORVERSION, op);
+ VER_SET_CONDITION(condition_mask, VER_SERVICEPACKMAJOR, op);
+ VER_SET_CONDITION(condition_mask, VER_SERVICEPACKMINOR, op);
+
+ /* Perform the test. */
+ return (int) VerifyVersionInfo(
+ &osvi,
+ VER_MAJORVERSION | VER_MINORVERSION |
+ VER_SERVICEPACKMAJOR | VER_SERVICEPACKMINOR,
+ condition_mask);
+}
+
+
+static int address_prefix_match(int family,
+ struct sockaddr* address,
+ struct sockaddr* prefix_address,
+ int prefix_len) {
+ uint8_t* address_data;
+ uint8_t* prefix_address_data;
+ int i;
+
+ assert(address->sa_family == family);
+ assert(prefix_address->sa_family == family);
+
+ if (family == AF_INET6) {
+ address_data = (uint8_t*) &(((struct sockaddr_in6 *) address)->sin6_addr);
+ prefix_address_data =
+ (uint8_t*) &(((struct sockaddr_in6 *) prefix_address)->sin6_addr);
+ } else {
+ address_data = (uint8_t*) &(((struct sockaddr_in *) address)->sin_addr);
+ prefix_address_data =
+ (uint8_t*) &(((struct sockaddr_in *) prefix_address)->sin_addr);
+ }
+
+ for (i = 0; i < prefix_len >> 3; i++) {
+ if (address_data[i] != prefix_address_data[i])
+ return 0;
+ }
+
+ if (prefix_len % 8)
+ return prefix_address_data[i] ==
+ (address_data[i] & (0xff << (8 - prefix_len % 8)));
+
+ return 1;
+}
+
+
+int uv_interface_addresses(uv_interface_address_t** addresses_ptr,
+ int* count_ptr) {
+ IP_ADAPTER_ADDRESSES* win_address_buf;
+ ULONG win_address_buf_size;
+ IP_ADAPTER_ADDRESSES* adapter;
+
+ uv_interface_address_t* uv_address_buf;
+ char* name_buf;
+ size_t uv_address_buf_size;
+ uv_interface_address_t* uv_address;
+
+ int count;
+
+ int is_vista_or_greater;
+ ULONG flags;
+
+ is_vista_or_greater = is_windows_version_or_greater(6, 0, 0, 0);
+ if (is_vista_or_greater) {
+ flags = GAA_FLAG_SKIP_ANYCAST | GAA_FLAG_SKIP_MULTICAST |
+ GAA_FLAG_SKIP_DNS_SERVER;
+ } else {
+ /* We need at least XP SP1. */
+ if (!is_windows_version_or_greater(5, 1, 1, 0))
+ return UV_ENOTSUP;
+
+ flags = GAA_FLAG_SKIP_ANYCAST | GAA_FLAG_SKIP_MULTICAST |
+ GAA_FLAG_SKIP_DNS_SERVER | GAA_FLAG_INCLUDE_PREFIX;
+ }
+
+
+ /* Fetch the size of the adapters reported by windows, and then get the */
+ /* list itself. */
+ win_address_buf_size = 0;
+ win_address_buf = NULL;
+
+ for (;;) {
+ ULONG r;
+
+ /* If win_address_buf is 0, then GetAdaptersAddresses will fail with */
+ /* ERROR_BUFFER_OVERFLOW, and the required buffer size will be stored in */
+ /* win_address_buf_size. */
+ r = GetAdaptersAddresses(AF_UNSPEC,
+ flags,
+ NULL,
+ win_address_buf,
+ &win_address_buf_size);
+
+ if (r == ERROR_SUCCESS)
+ break;
+
+ uv__free(win_address_buf);
+
+ switch (r) {
+ case ERROR_BUFFER_OVERFLOW:
+ /* This happens when win_address_buf is NULL or too small to hold */
+ /* all adapters. */
+ win_address_buf = uv__malloc(win_address_buf_size);
+ if (win_address_buf == NULL)
+ return UV_ENOMEM;
+
+ continue;
+
+ case ERROR_NO_DATA: {
+ /* No adapters were found. */
+ uv_address_buf = uv__malloc(1);
+ if (uv_address_buf == NULL)
+ return UV_ENOMEM;
+
+ *count_ptr = 0;
+ *addresses_ptr = uv_address_buf;
+
+ return 0;
+ }
+
+ case ERROR_ADDRESS_NOT_ASSOCIATED:
+ return UV_EAGAIN;
+
+ case ERROR_INVALID_PARAMETER:
+ /* MSDN says:
+ * "This error is returned for any of the following conditions: the
+ * SizePointer parameter is NULL, the Address parameter is not
+ * AF_INET, AF_INET6, or AF_UNSPEC, or the address information for
+ * the parameters requested is greater than ULONG_MAX."
+ * Since the first two conditions are not met, it must be that the
+ * adapter data is too big.
+ */
+ return UV_ENOBUFS;
+
+ default:
+ /* Other (unspecified) errors can happen, but we don't have any */
+ /* special meaning for them. */
+ assert(r != ERROR_SUCCESS);
+ return uv_translate_sys_error(r);
+ }
+ }
+
+ /* Count the number of enabled interfaces and compute how much space is */
+ /* needed to store their info. */
+ count = 0;
+ uv_address_buf_size = 0;
+
+ for (adapter = win_address_buf;
+ adapter != NULL;
+ adapter = adapter->Next) {
+ IP_ADAPTER_UNICAST_ADDRESS* unicast_address;
+ int name_size;
+
+ /* Interfaces that are not 'up' should not be reported. Also skip */
+ /* interfaces that have no associated unicast address, as to avoid */
+ /* allocating space for the name for this interface. */
+ if (adapter->OperStatus != IfOperStatusUp ||
+ adapter->FirstUnicastAddress == NULL)
+ continue;
+
+ /* Compute the size of the interface name. */
+ name_size = WideCharToMultiByte(CP_UTF8,
+ 0,
+ adapter->FriendlyName,
+ -1,
+ NULL,
+ 0,
+ NULL,
+ FALSE);
+ if (name_size <= 0) {
+ uv__free(win_address_buf);
+ return uv_translate_sys_error(GetLastError());
+ }
+ uv_address_buf_size += name_size;
+
+ /* Count the number of addresses associated with this interface, and */
+ /* compute the size. */
+ for (unicast_address = (IP_ADAPTER_UNICAST_ADDRESS*)
+ adapter->FirstUnicastAddress;
+ unicast_address != NULL;
+ unicast_address = unicast_address->Next) {
+ count++;
+ uv_address_buf_size += sizeof(uv_interface_address_t);
+ }
+ }
+
+ /* Allocate space to store interface data plus adapter names. */
+ uv_address_buf = uv__malloc(uv_address_buf_size);
+ if (uv_address_buf == NULL) {
+ uv__free(win_address_buf);
+ return UV_ENOMEM;
+ }
+
+ /* Compute the start of the uv_interface_address_t array, and the place in */
+ /* the buffer where the interface names will be stored. */
+ uv_address = uv_address_buf;
+ name_buf = (char*) (uv_address_buf + count);
+
+ /* Fill out the output buffer. */
+ for (adapter = win_address_buf;
+ adapter != NULL;
+ adapter = adapter->Next) {
+ IP_ADAPTER_UNICAST_ADDRESS* unicast_address;
+ int name_size;
+ size_t max_name_size;
+
+ if (adapter->OperStatus != IfOperStatusUp ||
+ adapter->FirstUnicastAddress == NULL)
+ continue;
+
+ /* Convert the interface name to UTF8. */
+ max_name_size = (char*) uv_address_buf + uv_address_buf_size - name_buf;
+ if (max_name_size > (size_t) INT_MAX)
+ max_name_size = INT_MAX;
+ name_size = WideCharToMultiByte(CP_UTF8,
+ 0,
+ adapter->FriendlyName,
+ -1,
+ name_buf,
+ (int) max_name_size,
+ NULL,
+ FALSE);
+ if (name_size <= 0) {
+ uv__free(win_address_buf);
+ uv__free(uv_address_buf);
+ return uv_translate_sys_error(GetLastError());
+ }
+
+ /* Add an uv_interface_address_t element for every unicast address. */
+ for (unicast_address = (IP_ADAPTER_UNICAST_ADDRESS*)
+ adapter->FirstUnicastAddress;
+ unicast_address != NULL;
+ unicast_address = unicast_address->Next) {
+ struct sockaddr* sa;
+ ULONG prefix_len;
+
+ sa = unicast_address->Address.lpSockaddr;
+
+ /* XP has no OnLinkPrefixLength field. */
+ if (is_vista_or_greater) {
+ prefix_len =
+ ((IP_ADAPTER_UNICAST_ADDRESS_LH*) unicast_address)->OnLinkPrefixLength;
+ } else {
+ /* Prior to Windows Vista the FirstPrefix pointed to the list with
+ * single prefix for each IP address assigned to the adapter.
+ * Order of FirstPrefix does not match order of FirstUnicastAddress,
+ * so we need to find corresponding prefix.
+ */
+ IP_ADAPTER_PREFIX* prefix;
+ prefix_len = 0;
+
+ for (prefix = adapter->FirstPrefix; prefix; prefix = prefix->Next) {
+ /* We want the longest matching prefix. */
+ if (prefix->Address.lpSockaddr->sa_family != sa->sa_family ||
+ prefix->PrefixLength <= prefix_len)
+ continue;
+
+ if (address_prefix_match(sa->sa_family, sa,
+ prefix->Address.lpSockaddr, prefix->PrefixLength)) {
+ prefix_len = prefix->PrefixLength;
+ }
+ }
+
+ /* If there is no matching prefix information, return a single-host
+ * subnet mask (e.g. 255.255.255.255 for IPv4).
+ */
+ if (!prefix_len)
+ prefix_len = (sa->sa_family == AF_INET6) ? 128 : 32;
+ }
+
+ memset(uv_address, 0, sizeof *uv_address);
+
+ uv_address->name = name_buf;
+
+ if (adapter->PhysicalAddressLength == sizeof(uv_address->phys_addr)) {
+ memcpy(uv_address->phys_addr,
+ adapter->PhysicalAddress,
+ sizeof(uv_address->phys_addr));
+ }
+
+ uv_address->is_internal =
+ (adapter->IfType == IF_TYPE_SOFTWARE_LOOPBACK);
+
+ if (sa->sa_family == AF_INET6) {
+ uv_address->address.address6 = *((struct sockaddr_in6 *) sa);
+
+ uv_address->netmask.netmask6.sin6_family = AF_INET6;
+ memset(uv_address->netmask.netmask6.sin6_addr.s6_addr, 0xff, prefix_len >> 3);
+ /* This check ensures that we don't write past the size of the data. */
+ if (prefix_len % 8) {
+ uv_address->netmask.netmask6.sin6_addr.s6_addr[prefix_len >> 3] =
+ 0xff << (8 - prefix_len % 8);
+ }
+
+ } else {
+ uv_address->address.address4 = *((struct sockaddr_in *) sa);
+
+ uv_address->netmask.netmask4.sin_family = AF_INET;
+ uv_address->netmask.netmask4.sin_addr.s_addr = (prefix_len > 0) ?
+ htonl(0xffffffff << (32 - prefix_len)) : 0;
+ }
+
+ uv_address++;
+ }
+
+ name_buf += name_size;
+ }
+
+ uv__free(win_address_buf);
+
+ *addresses_ptr = uv_address_buf;
+ *count_ptr = count;
+
+ return 0;
+}
+
+
+void uv_free_interface_addresses(uv_interface_address_t* addresses,
+ int count) {
+ uv__free(addresses);
+}
+
+
+int uv_getrusage(uv_rusage_t *uv_rusage) {
+ FILETIME createTime, exitTime, kernelTime, userTime;
+ SYSTEMTIME kernelSystemTime, userSystemTime;
+ PROCESS_MEMORY_COUNTERS memCounters;
+ int ret;
+
+ ret = GetProcessTimes(GetCurrentProcess(), &createTime, &exitTime, &kernelTime, &userTime);
+ if (ret == 0) {
+ return uv_translate_sys_error(GetLastError());
+ }
+
+ ret = FileTimeToSystemTime(&kernelTime, &kernelSystemTime);
+ if (ret == 0) {
+ return uv_translate_sys_error(GetLastError());
+ }
+
+ ret = FileTimeToSystemTime(&userTime, &userSystemTime);
+ if (ret == 0) {
+ return uv_translate_sys_error(GetLastError());
+ }
+
+ ret = GetProcessMemoryInfo(GetCurrentProcess(),
+ &memCounters,
+ sizeof(memCounters));
+ if (ret == 0) {
+ return uv_translate_sys_error(GetLastError());
+ }
+
+ memset(uv_rusage, 0, sizeof(*uv_rusage));
+
+ uv_rusage->ru_utime.tv_sec = userSystemTime.wHour * 3600 +
+ userSystemTime.wMinute * 60 +
+ userSystemTime.wSecond;
+ uv_rusage->ru_utime.tv_usec = userSystemTime.wMilliseconds * 1000;
+
+ uv_rusage->ru_stime.tv_sec = kernelSystemTime.wHour * 3600 +
+ kernelSystemTime.wMinute * 60 +
+ kernelSystemTime.wSecond;
+ uv_rusage->ru_stime.tv_usec = kernelSystemTime.wMilliseconds * 1000;
+
+ uv_rusage->ru_majflt = (uint64_t) memCounters.PageFaultCount;
+ uv_rusage->ru_maxrss = (uint64_t) memCounters.PeakWorkingSetSize / 1024;
+
+ return 0;
+}
+
+
+int uv_os_homedir(char* buffer, size_t* size) {
+ uv_passwd_t pwd;
+ wchar_t path[MAX_PATH];
+ DWORD bufsize;
+ size_t len;
+ int r;
+
+ if (buffer == NULL || size == NULL || *size == 0)
+ return UV_EINVAL;
+
+ /* Check if the USERPROFILE environment variable is set first */
+ len = GetEnvironmentVariableW(L"USERPROFILE", path, MAX_PATH);
+
+ if (len == 0) {
+ r = GetLastError();
+
+ /* Don't return an error if USERPROFILE was not found */
+ if (r != ERROR_ENVVAR_NOT_FOUND)
+ return uv_translate_sys_error(r);
+ } else if (len > MAX_PATH) {
+ /* This should not be possible */
+ return UV_EIO;
+ } else {
+ /* Check how much space we need */
+ bufsize = WideCharToMultiByte(CP_UTF8, 0, path, -1, NULL, 0, NULL, NULL);
+
+ if (bufsize == 0) {
+ return uv_translate_sys_error(GetLastError());
+ } else if (bufsize > *size) {
+ *size = bufsize;
+ return UV_ENOBUFS;
+ }
+
+ /* Convert to UTF-8 */
+ bufsize = WideCharToMultiByte(CP_UTF8,
+ 0,
+ path,
+ -1,
+ buffer,
+ *size,
+ NULL,
+ NULL);
+
+ if (bufsize == 0)
+ return uv_translate_sys_error(GetLastError());
+
+ *size = bufsize - 1;
+ return 0;
+ }
+
+ /* USERPROFILE is not set, so call uv__getpwuid_r() */
+ r = uv__getpwuid_r(&pwd);
+
+ if (r != 0) {
+ return r;
+ }
+
+ len = strlen(pwd.homedir);
+
+ if (len >= *size) {
+ *size = len + 1;
+ uv_os_free_passwd(&pwd);
+ return UV_ENOBUFS;
+ }
+
+ memcpy(buffer, pwd.homedir, len + 1);
+ *size = len;
+ uv_os_free_passwd(&pwd);
+
+ return 0;
+}
+
+
+int uv_os_tmpdir(char* buffer, size_t* size) {
+ wchar_t path[MAX_PATH + 1];
+ DWORD bufsize;
+ size_t len;
+
+ if (buffer == NULL || size == NULL || *size == 0)
+ return UV_EINVAL;
+
+ len = GetTempPathW(MAX_PATH + 1, path);
+
+ if (len == 0) {
+ return uv_translate_sys_error(GetLastError());
+ } else if (len > MAX_PATH + 1) {
+ /* This should not be possible */
+ return UV_EIO;
+ }
+
+ /* The returned directory should not have a trailing slash, unless it */
+ /* points at a drive root, like c:\. Remove it if needed.*/
+ if (path[len - 1] == L'\\' &&
+ !(len == 3 && path[1] == L':')) {
+ len--;
+ path[len] = L'\0';
+ }
+
+ /* Check how much space we need */
+ bufsize = WideCharToMultiByte(CP_UTF8, 0, path, -1, NULL, 0, NULL, NULL);
+
+ if (bufsize == 0) {
+ return uv_translate_sys_error(GetLastError());
+ } else if (bufsize > *size) {
+ *size = bufsize;
+ return UV_ENOBUFS;
+ }
+
+ /* Convert to UTF-8 */
+ bufsize = WideCharToMultiByte(CP_UTF8,
+ 0,
+ path,
+ -1,
+ buffer,
+ *size,
+ NULL,
+ NULL);
+
+ if (bufsize == 0)
+ return uv_translate_sys_error(GetLastError());
+
+ *size = bufsize - 1;
+ return 0;
+}
+
+
+void uv_os_free_passwd(uv_passwd_t* pwd) {
+ if (pwd == NULL)
+ return;
+
+ uv__free(pwd->username);
+ uv__free(pwd->homedir);
+ pwd->username = NULL;
+ pwd->homedir = NULL;
+}
+
+
+/*
+ * Converts a UTF-16 string into a UTF-8 one. The resulting string is
+ * null-terminated.
+ *
+ * If utf16 is null terminated, utf16len can be set to -1, otherwise it must
+ * be specified.
+ */
+int uv__convert_utf16_to_utf8(const WCHAR* utf16, int utf16len, char** utf8) {
+ DWORD bufsize;
+
+ if (utf16 == NULL)
+ return UV_EINVAL;
+
+ /* Check how much space we need */
+ bufsize = WideCharToMultiByte(CP_UTF8,
+ 0,
+ utf16,
+ utf16len,
+ NULL,
+ 0,
+ NULL,
+ NULL);
+
+ if (bufsize == 0)
+ return uv_translate_sys_error(GetLastError());
+
+ /* Allocate the destination buffer adding an extra byte for the terminating
+ * NULL. If utf16len is not -1 WideCharToMultiByte will not add it, so
+ * we do it ourselves always, just in case. */
+ *utf8 = uv__malloc(bufsize + 1);
+
+ if (*utf8 == NULL)
+ return UV_ENOMEM;
+
+ /* Convert to UTF-8 */
+ bufsize = WideCharToMultiByte(CP_UTF8,
+ 0,
+ utf16,
+ utf16len,
+ *utf8,
+ bufsize,
+ NULL,
+ NULL);
+
+ if (bufsize == 0) {
+ uv__free(*utf8);
+ *utf8 = NULL;
+ return uv_translate_sys_error(GetLastError());
+ }
+
+ (*utf8)[bufsize] = '\0';
+ return 0;
+}
+
+
+int uv__getpwuid_r(uv_passwd_t* pwd) {
+ HANDLE token;
+ wchar_t username[UNLEN + 1];
+ wchar_t path[MAX_PATH];
+ DWORD bufsize;
+ int r;
+
+ if (pwd == NULL)
+ return UV_EINVAL;
+
+ /* Get the home directory using GetUserProfileDirectoryW() */
+ if (OpenProcessToken(GetCurrentProcess(), TOKEN_READ, &token) == 0)
+ return uv_translate_sys_error(GetLastError());
+
+ bufsize = sizeof(path);
+ if (!GetUserProfileDirectoryW(token, path, &bufsize)) {
+ r = GetLastError();
+ CloseHandle(token);
+
+ /* This should not be possible */
+ if (r == ERROR_INSUFFICIENT_BUFFER)
+ return UV_ENOMEM;
+
+ return uv_translate_sys_error(r);
+ }
+
+ CloseHandle(token);
+
+ /* Get the username using GetUserNameW() */
+ bufsize = sizeof(username);
+ if (!GetUserNameW(username, &bufsize)) {
+ r = GetLastError();
+
+ /* This should not be possible */
+ if (r == ERROR_INSUFFICIENT_BUFFER)
+ return UV_ENOMEM;
+
+ return uv_translate_sys_error(r);
+ }
+
+ pwd->homedir = NULL;
+ r = uv__convert_utf16_to_utf8(path, -1, &pwd->homedir);
+
+ if (r != 0)
+ return r;
+
+ pwd->username = NULL;
+ r = uv__convert_utf16_to_utf8(username, -1, &pwd->username);
+
+ if (r != 0) {
+ uv__free(pwd->homedir);
+ return r;
+ }
+
+ pwd->shell = NULL;
+ pwd->uid = -1;
+ pwd->gid = -1;
+
+ return 0;
+}
+
+
+int uv_os_get_passwd(uv_passwd_t* pwd) {
+ return uv__getpwuid_r(pwd);
+}
generated by cgit v0.12 at 2024-12-27 13:29:19 (GMT)