Jeremy C. Reed wrote:
> > Here is an untested patch (or at least an idea :) that should help those
> > who don't use raised securelevel. This patch needs some debug output for
> > both chflags introduced here.
> >
> > Index: src/findlib/create_file.c
>
> I see my patch is missing a closing brace. And also it fails to return
> error if no file flags. If someone will use this code, I will finish it
> up.
I'm trying right now with the following patch. It is a bit of redundant code
(error handling, flag restoring), but I think it should work...
--- src/findlib/create_file.c.orig Tue May 2 16:48:16 2006
+++ src/findlib/create_file.c Tue Dec 12 22:50:22 2006
@@ -304,9 +304,42 @@
Dmsg2(130, "Hard link %s => %s\n", attr->ofname, attr->olname);
if (link(attr->olname, attr->ofname) != 0) {
berrno be;
- Jmsg3(jcr, M_ERROR, 0, _("Could not hard link %s -> %s: ERR=%s\n"),
- attr->ofname, attr->olname, be.strerror());
- return CF_ERROR;
+#ifdef HAVE_CHFLAGS
+ struct stat s;
+
+ /*
+ * If using BSD user flags, maybe has a file flag
+ * preventing this. So attempt to disable, retry link,
+ * and reset flags.
+ * Note that BSD securelevel may prevent disabling flag.
+ */
+
+ if (stat(attr->ofname, &s) == 0 && s.st_flags != 0 &&
+ chflags(attr->ofname, 0) == 0) {
+ if (link(attr->olname, attr->ofname) != 0) {
+ /* restore original file flags even when linking failed */
+ if (chflags(attr->ofname, s.st_flags) < 0) {
+ Jmsg2(jcr, M_ERROR, 0, _("Could not restore file flags
for file %s: ERR=%s\n"),
+ attr->olname, be.strerror());
+ }
+#endif /* HAVE_CHFLAGS */
+ Jmsg3(jcr, M_ERROR, 0, _("Could not hard link %s -> %s:
ERR=%s\n"),
+ attr->ofname, attr->olname, be.strerror());
+ return CF_ERROR;
+#ifdef HAVE_CHFLAGS
+ }
+ /* finally restore original file flags */
+ if (chflags(attr->ofname, s.st_flags) < 0) {
+ Jmsg2(jcr, M_ERROR, 0, _("Could not restore file flags for
file %s: ERR=%s\n"),
+ attr->olname, be.strerror());
+ }
+ } else {
+ Jmsg3(jcr, M_ERROR, 0, _("Could not hard link %s -> %s:
ERR=%s\n"),
+ attr->ofname, attr->olname, be.strerror());
+ return CF_ERROR;
+ }
+#endif /* HAVE_CHFLAGS */
+
}
return CF_CREATED;
#endif
--
Oliver Lehmann
http://www.pofo.de/
http://wishlist.ans-netz.de/
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