| http://bugs.python.org/issue17797 |
| http://connect.microsoft.com/VisualStudio/feedback/details/785119/ |
| |
| Visual Studio 2013 changed return value for fileno function that breaks |
| when python tries to check/setup stdin/out/err |
| GetStdHandle on Windows XP behaves contrary to the documentation... |
| MSVC 14.0 fixed this bug. |
| |
| diff -ru python3.orig/Python/pylifecycle.c python3/Python/pylifecycle.c |
| --- python3.orig/Python/pylifecycle.c 2015-07-05 18:50:08.000000000 +0200 |
| +++ python3/Python/pylifecycle.c 2015-07-26 20:01:23.563082638 +0200 |
| @@ -1065,15 +1065,30 @@ |
| static int |
| is_valid_fd(int fd) |
| { |
| - int dummy_fd; |
| if (fd < 0 || !_PyVerify_fd(fd)) |
| return 0; |
| - _Py_BEGIN_SUPPRESS_IPH |
| - dummy_fd = dup(fd); |
| - if (dummy_fd >= 0) |
| - close(dummy_fd); |
| - _Py_END_SUPPRESS_IPH |
| - return dummy_fd >= 0; |
| + |
| +#if defined(MS_WINDOWS) && defined(HAVE_FSTAT) && defined(_MSC_VER) && (_MSC_VER >= 1700 && _MSC_VER < 1900) |
| + /* dup (DuplicateHandle) doesn't say fd is a valid *file* handle. |
| + * It could be a current thread pseudo-handle. |
| + */ |
| + { |
| + struct stat buf; |
| + if (fstat(fd, &buf) < 0 && (errno == EBADF || errno == ENOENT)) |
| + return 0; |
| + else |
| + return 1; |
| + } |
| +#else |
| + { |
| + int dummy_fd = dup(fd); |
| + _Py_BEGIN_SUPPRESS_IPH |
| + if (dummy_fd >= 0) |
| + close(dummy_fd); |
| + _Py_END_SUPPRESS_IPH |
| + return dummy_fd >= 0; |
| + } |
| +#endif |
| } |
| |
| /* Initialize sys.stdin, stdout, stderr and builtins.open */ |