ref: 01cebf1373d482f3dca1eb9706a6b85595e83ea1
dir: /wince/env.c/
// // "Extension" implementation of getenv for Windows CE. // // I (Simon Howard) release this file to the public domain. // #include <stdlib.h> #include <string.h> #include <windows.h> #include <lmcons.h> #include <secext.h> #include <shlobj.h> #include "env.h" static void WCharToChar(wchar_t *src, char *dest, int buf_len) { unsigned int len; len = wcslen(src) + 1; WideCharToMultiByte(CP_OEMCP, 0, src, len, dest, buf_len, NULL, NULL); } static void SetEnvironment(char *env_string, wchar_t *wvalue) { char value[MAX_PATH + 10]; int env_len; // Construct the string for putenv: NAME=value env_len = strlen(env_string); strcpy(value, env_string); WCharToChar(wvalue, value + env_len, sizeof(value) - env_len); // Set the environment variable: putenv(value); } static int ReadOwnerName(wchar_t *value, DWORD len) { HKEY key; DWORD valtype; if (RegOpenKeyExW(HKEY_CURRENT_USER, L"\\ControlPanel\\Owner", 0, KEY_READ, &key) != ERROR_SUCCESS) { return 0; } valtype = REG_SZ; if (RegQueryValueExW(key, L"Name", NULL, &valtype, (LPBYTE) value, &len) != ERROR_SUCCESS) { return 0; } // Close the key RegCloseKey(key); return 1; } void PopulateEnvironment(void) { wchar_t temp[MAX_PATH]; // Username: if (ReadOwnerName(temp, MAX_PATH)) { SetEnvironment("USER=", temp); SetEnvironment("USERNAME=", temp); } // Temp dir: GetTempPathW(MAX_PATH, temp); SetEnvironment("TEMP=", temp); // Use My Documents dir as home: SHGetSpecialFolderPath(NULL, temp, CSIDL_PERSONAL, 0); SetEnvironment("HOME=", temp); }