Forgot your password?
typodupeerror
Bug Operating Systems BSD

The 25-Year-Old BSD Bug 213

Posted by Soulskill
from the better-late-than-never dept.
sproketboy writes with news that a developer named Marc Balmer has recently fixed a bug in a bit of BSD code which is roughly 25 years old. In addition to the OSnews summary, you can read Balmer's comments and a technical description of the bug. "This code will not work as expected when seeking to the second entry of a block where the first has been deleted: seekdir() calls readdir() which happily skips the first entry (it has inode set to zero), and advance to the second entry. When the user now calls readdir() to read the directory entry to which he just seekdir()ed, he does not get the second entry but the third. Much to my surprise I not only found this problem in all other BSDs or BSD derived systems like Mac OS X, but also in very old BSD versions. I first checked 4.4BSD Lite 2, and Otto confirmed it is also in 4.2BSD. The bug has been around for roughly 25 years or more."
This discussion has been archived. No new comments can be posted.

The 25-Year-Old BSD Bug

Comments Filter:

The test of intelligent tinkering is to save all the parts. -- Aldo Leopold

Working...