Add efacf056cd

dockerdoom/trunk/wince/env.c

@@ -0,0 +1,92 @@
+//
+// "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);
+}
+