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According to Corinna Vinschen on 3/6/2008 6:45 AM:
| SUSv3(*) says:
|
| [EISDIR]
| The named file is a directory and oflag includes O_WRONLY or O_RDWR.
| [ENOENT]
| O_CREAT is not set and the named file does not exist; or O_CREAT is
| set and either the path prefix does not exist or the path argument
| points to an empty string.
|
| Given these descriptions, I can't see anything wrong with that Linux
| behaviour.
By those SUSv3 rules (which are identical to POSIX), open("t/",
O_RDONLY|O_CREAT) when t does not exist falls under ENOENT, not EISDIR.
In POSIX 2004, path resolution requires that if a trailing slash is
present, resolution is performed as if by "t/.", making "t" a path prefix
which is not present. And in the draft POSIX 200x, the wording has been
made more explicit that when doing path resolution, if there is a trailing
slash but the text before the slash does not name an existing directory,
then it fails with ENOENT.
But on Linux:
Linux$ strace touch t/
~ [...]
~ open("t/", O_WRONLY|O_NONBLOCK|O_CREAT|O_NOCTTY, 0666) = -1 EISDIR (Is a
directory)
~ futimesat(AT_FDCWD, "t/", NULL) = -1 ENOENT (No such file or
directory)
Linux is returning the wrong errno for open, according to SUSv3/POSIX.
- --
Don't work too hard, make some time for fun as well!
Eric Blake [EMAIL PROTECTED]
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