Messages in this thread | | | From | "Lou Grinzo" <> | Subject | ELOOP help needed | Date | Sun, 6 Jun 1999 12:39:59 -0400 |
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I'm trying to track down a specific detail about how Linux handles circular link references. I know that certain system calls will return [-]ELOOP when this condition is detected, but I need a little more information:
I've seen descriptions that say only a certain number of links will be followed before Linux will assume it has a circular reference and give up and return ELOOP. Is this true? If so, what's the limit? Is the limit hard- coded, or can it be overridden programmatically?
I found in the Linux source browser one spot that returns ELOOP, at http://metalab.unc.edu/navigator-bin/navigator.cgi?fs/ext2/symlink.c, in function ext2_follow_link. This seems to indicate pretty clearly that the count is hardwired to 5, at least for ext2. Is this correct? Has it always been 5?
Since I need this information for a technical edit of a published article, and I'm on a very tight deadline, I would appreciate replies directly to my e-mail address, lgrinzo@stny.lrun.com, if possible.
Thanks in advance.
Lou
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