Subject: tftpd: writing files with relative pathnames?
To: None <email@example.com>
From: Michael K. Sanders <firstname.lastname@example.org>
Date: 10/26/1998 13:11:08
In trying to copy a file from a Cisco router to a NetBSD tftp server
recently, I kept getting an 'Access violation', even though the same
steps for transferring worked on a FreeBSD system. After looking
through the source, I discovered that it was because of this check in
* Relative file name: search the approved locations for it.
* Don't allow write requests or ones that avoid directory
if (mode != RRQ || !strncmp(filename, "../", 3))
After changing the file name to use an absolute path, the transfer
went fine, but I'm wondering why writes of relative files are