Package: unionfs-fuse
Version: 0.21-3a0.mrvn.1
Severity: normal
Tags: patch
Hi,
I've patched unionfs-fuse copy-on-write to do copy-on-use (patch
pending) so it acts as a cache filesystem. Doing that I noticed that
symlinks are broken when they are copied in cow_link(). It also does
not 0 terminate the readlink output before using the string.
MfG
Goswin
-- System Information:
Debian Release: squeeze/sid
APT prefers unstable
APT policy: (500, 'unstable'), (400, 'unstable-i386')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.25-kvm-nofb (SMP w/2 CPU cores)
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Shell: /bin/sh linked to /bin/bash
Versions of packages unionfs-fuse depends on:
ii fuse-utils 2.8.0~pre2-1 Filesystem in USErspace (utilities
ii libc6 2.9-12 GNU C Library: Shared libraries
ii libfuse2 2.8.0~pre2-1 Filesystem in USErspace library
unionfs-fuse recommends no packages.
unionfs-fuse suggests no packages.
-- no debconf information
Index: unionfs-fuse-0.21/src/cow_utils.c
===================================================================
--- unionfs-fuse-0.21.orig/src/cow_utils.c 2009-06-17 10:09:35.000000000 +0200
+++ unionfs-fuse-0.21/src/cow_utils.c 2009-06-17 10:12:53.000000000 +0200
@@ -245,8 +245,9 @@
usyslog(LOG_WARNING, "readlink: %s", cow->from_path);
return (1);
}
-
- if (symlink(cow->from_path, cow->to_path)) {
+ link[len] = 0;
+
+ if (symlink(link, cow->to_path)) {
usyslog(LOG_WARNING, "symlink: %s", link);
return (1);
}
