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Issue #14359: Only use O_CLOEXEC in _posixmodule.c if it is defined.

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Based on patch from Hervé Coatanhay.
This commit is contained in:
Ross Lagerwall 2012-03-19 06:08:43 +02:00
parent 1623afff67
commit 71faefc37e
3 changed files with 19 additions and 1 deletions
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13
Modules/_posixsubprocess.c
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@ -202,7 +202,18 @@ _close_open_fd_range_safe(int start_fd, int end_fd, PyObject* py_fds_to_keep)
int fd_dir_fd;
if (start_fd >= end_fd)
return;
fd_dir_fd = open(FD_DIR, O_RDONLY | O_CLOEXEC, 0);
#ifdef O_CLOEXEC
fd_dir_fd = open(FD_DIR, O_RDONLY | O_CLOEXEC, 0);
#else
fd_dir_fd = open(FD_DIR, O_RDONLY, 0);
#ifdef FD_CLOEXEC
{
int old = fcntl(fd_dir_fd, F_GETFD);
if (old != -1)
fcntl(fd_dir_fd, F_SETFD, old | FD_CLOEXEC);
}
#endif
#endif
if (fd_dir_fd == -1) {
/* No way to get a list of open fds. */
_close_fds_by_brute_force(start_fd, end_fd, py_fds_to_keep);