Messages in this thread |  | | | Subject | truncate("x", -1) | | Date | Mon, 19 Apr 1999 14:01:08 +0800 | | From | David Luyer <> |
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Looks Linux specific from some testing. And doesn't even happen with Linux NFS to a Linux server.
Digital Unix ADVFS - no problem Solaris UFS - no problem Linux 2.0 NFS client against Solaris NFS server (UFS) - no problem Linux 2.0 NFS client against Linux NFS 2.0 server (EXT2FS) - no problem Linux 2.0 EXT2FS - PROBLEM StarOS 4.1.1 TMPFS - no problem StarOS 4.1.1 UFS - no problem FreeBSD 3.0 - no problem NeXTStep 3.3 - no problem
Fortunately, even in the Linux case, it doesn't seem to mess up quotas.
The argument to [f]truncate is meant to be a size_t not a ssize_t, so probably this is a signed/unsigned bug. The man page says that it should truncate a file to at most the specified size, so the correct behaviour should be
truncate("x", -1) kernel: current size 0 < new size 2^32 - 1 kernel: return success with no action
David.
(NB: StarOS 4.1.1 in the above list is basically SunOS 4.1.1 for one type of sun4x [the Star 910/VP])
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