diff --git a/compat/mingw.c b/compat/mingw.c index b479ecc7d3..1f827d1440 100644 --- a/compat/mingw.c +++ b/compat/mingw.c @@ -3032,3 +3032,35 @@ int uname(struct utsname *buf) "%u", (v >> 16) & 0x7fff); return 0; } + +/* + * Based on https://stackoverflow.com/questions/43002803 + * + * [HKLM\SYSTEM\CurrentControlSet\Services\cexecsvc] + * "DisplayName"="@%systemroot%\\system32\\cexecsvc.exe,-100" + * "ErrorControl"=dword:00000001 + * "ImagePath"=hex(2):25,00,73,00,79,00,73,00,74,00,65,00,6d,00,72,00,6f,00, + * 6f,00,74,00,25,00,5c,00,73,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00, + * 5c,00,63,00,65,00,78,00,65,00,63,00,73,00,76,00,63,00,2e,00,65,00,78,00, + * 65,00,00,00 + * "Start"=dword:00000002 + * "Type"=dword:00000010 + * "Description"="@%systemroot%\\system32\\cexecsvc.exe,-101" + * "ObjectName"="LocalSystem" + * "ServiceSidType"=dword:00000001 + */ +int is_inside_windows_container(void) +{ + static int inside_container = -1; /* -1 uninitialized */ + const char *key = "SYSTEM\\CurrentControlSet\\Services\\cexecsvc"; + HKEY handle = NULL; + + if (inside_container != -1) + return inside_container; + + inside_container = ERROR_SUCCESS == + RegOpenKeyEx(HKEY_LOCAL_MACHINE, key, 0, KEY_READ, &handle); + RegCloseKey(handle); + + return inside_container; +} diff --git a/compat/mingw.h b/compat/mingw.h index 3cb27e6d55..e35d16d739 100644 --- a/compat/mingw.h +++ b/compat/mingw.h @@ -653,3 +653,8 @@ static int mingw_main(c,v) * Used by Pthread API implementation for Windows */ extern int err_win_to_posix(DWORD winerr); + +/* + * Check current process is inside Windows Container. + */ +extern int is_inside_windows_container(void);