+ rf = xmalloc (sizeof *rf);
+ rf->file_name = NULL;
+ rf->tmp_name = xstrdup (file_name);
+ if (tmp_name != NULL)
+ *tmp_name = rf->tmp_name;
+ return rf;
+ }
+
+ if (!registered)
+ {
+ at_fatal_signal (unlink_replace_files);
+ registered = true;
+ }
+ block_fatal_signals ();
+
+ rf = xmalloc (sizeof *rf);
+ rf->file_name = xstrdup (file_name);
+ for (;;)
+ {
+ /* Generate unique temporary file name. */
+ rf->tmp_name = xasprintf ("%s.tmpXXXXXX", file_name);
+ if (gen_tempname (rf->tmp_name, 0, 0600, GT_NOCREATE) < 0)
+ {
+ msg (ME, _("Creating temporary file to replace %s: %s."),
+ rf->file_name, strerror (errno));
+ goto error;
+ }
+
+ /* Create file by that name. */
+ fd = open (rf->tmp_name, O_WRONLY | O_CREAT | O_EXCL | O_BINARY, permissions);
+ if (fd >= 0)
+ break;
+ if (errno != EEXIST)
+ {
+ msg (ME, _("Creating temporary file %s: %s."),
+ rf->tmp_name, strerror (errno));
+ goto error;
+ }
+ free (rf->tmp_name);
+ }
+
+
+ /* Open file as stream. */
+ *fp = fdopen (fd, mode);
+ if (*fp == NULL)
+ {
+ msg (ME, _("Opening stream for temporary file %s: %s."),
+ rf->tmp_name, strerror (errno));
+ close (fd);
+ unlink (rf->tmp_name);
+ goto error;
+ }
+
+ /* Register file for deletion. */
+ ll_push_head (&all_files, &rf->ll);
+ unblock_fatal_signals ();
+
+ if (tmp_name != NULL)
+ *tmp_name = rf->tmp_name;
+
+ return rf;
+
+error:
+ unblock_fatal_signals ();
+ free_replace_file (rf);
+ *fp = NULL;
+ if (tmp_name != NULL)
+ *tmp_name = NULL;
+ return NULL;
+}
+
+bool
+replace_file_commit (struct replace_file *rf)
+{
+ bool ok = true;