Use unsafe function alternatives because they're exclusive to Windows

Author: ShadelessFox

features/org.eclipse.equinox.executable.feature/library/eclipseCommon.c

@@ -544,17 +544,15 @@ _TCHAR* checkPath( _TCHAR* path, _TCHAR* programDir, int reverseOrder )
 _TCHAR* expandPath(_TCHAR* inPath) {
     _TCHAR buffer[MAX_PATH_LENGTH];
     _TCHAR variable[MAX_PATH_LENGTH];
-    _TCHAR value[MAX_PATH_LENGTH];
 
     _TCHAR* dstCur = &buffer[0];
-    _TCHAR* dstEnd = &buffer[MAX_PATH_LENGTH];
     _TCHAR* srcCur = &inPath[0];
 
     for(;;) {
         _TCHAR* start = _tcschr(srcCur, _T_ECLIPSE('%'));
         if (start == NULL) {
             // No more variables
-            _tcsncpy_s(dstCur, dstEnd - dstCur, srcCur, _TRUNCATE);
+            _tcscpy(dstCur, srcCur);
             return _tcsdup(buffer);
         }
         _TCHAR* end = _tcschr(start + 1, _T_ECLIPSE('%'));
@@ -563,18 +561,18 @@ _TCHAR* expandPath(_TCHAR* inPath) {
             *dstCur++ = *srcCur++;
             continue;
         }
-        _tcsncpy_s(variable, end - start, start + 1, _TRUNCATE);
-        size_t count;
-        _tgetenv_s(&count, value, MAX_PATH_LENGTH, variable);
-        if (count > 0) {
+        _tcsncpy(variable, start + 1, end - start);
+        variable[end - start - 1] = _T_ECLIPSE('\0');
+        _TCHAR* value = _tgetenv(variable);
+        if (value != NULL) {
             // Found a variable
-            _tcsncpy_s(dstCur, dstEnd - dstCur, srcCur, start - srcCur);
+            _tcsncpy(dstCur, srcCur, start - srcCur);
             dstCur += start - srcCur;
-            _tcsncpy_s(dstCur, dstEnd - dstCur, value, _TRUNCATE);
+            _tcscpy(dstCur, value);
             dstCur += _tcslen(value);
         } else {
             // Variable is not found
-            _tcsncpy_s(dstCur, dstEnd - dstCur, srcCur, end - srcCur + 1);
+            _tcsncpy(dstCur, srcCur, end - srcCur + 1);
             dstCur += end - srcCur + 1;
         }
         srcCur = end + 1;