/* Open a temporary file name, and immediately unlink it. */
static int
-open_temp_exec_file_name (char *name)
+open_temp_exec_file_name (char *name, int flags)
{
- int fd = mkstemp (name);
+ int fd = mkostemp (name, flags);
if (fd != -1)
unlink (name);
open_temp_exec_file_dir (const char *dir)
{
static const char suffix[] = "/ffiXXXXXX";
- size_t lendir = strlen (dir);
- char *tempname = __builtin_alloca (lendir + sizeof (suffix));
+ int lendir, flags, fd;
+ char *tempname;
+
+#ifdef O_CLOEXEC
+ flags = O_CLOEXEC;
+#else
+ flags = 0;
+#endif
+
+#ifdef O_TMPFILE
+ fd = open (dir, flags | O_RDWR | O_EXCL | O_TMPFILE, 0700);
+ /* If the running system does not support the O_TMPFILE flag then retry without it. */
+ if (fd != -1 || (errno != EINVAL && errno != EISDIR && errno != EOPNOTSUPP)) {
+ return fd;
+ } else {
+ errno = 0;
+ }
+#endif
+
+ lendir = strlen (dir);
+ tempname = __builtin_alloca (lendir + sizeof (suffix));
if (!tempname)
return -1;
memcpy (tempname, dir, lendir);
memcpy (tempname + lendir, suffix, sizeof (suffix));
- return open_temp_exec_file_name (tempname);
+ return open_temp_exec_file_name (tempname, flags);
}
/* Open a temporary file in the directory in the named environment