https://bugzilla.samba.org/show_bug.cgi?id=7816
Summary: get_tmpname() can create invalid UTF-8 filenames
Product: rsync
Version: 3.0.7
Platform: Sparc
OS/Version: Solaris
Status: NEW
Severity: minor
Priority: P3
Component: core
AssignedTo: way...@samba.org
ReportedBy: msalmo...@gmail.com
QAContact: rsync...@samba.org
get_tmpname() creates filenames consisting of the directory, a dot, some bytes
from the filename and .XXXXXX\0. No consideration is made for the fact that
UTF-8 characters can be several bytes long and arbitrarily truncating the name
can create an invalid UTF-8 sequence. Normally this isn't a problem but if the
filesystem strictly enforces UTF-8 then the temp file cannot be created and the
transfer fails.
An example of the problem is:
sending incremental file list
MS_Röj.icon
rsync: mkstemp "/fan/data/.MS_R\#303.001058" failed: Permission denied (13)
ö in UTF-8 is \#303\#266.
We got around the problem by specifying --inplace which avoids the temp file.
I think that the easiest way to handle the problem is to replace all characters
in the file name with # if bit 7 is set.
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