z/OS and symlink()

[Daniel Richard G.]

Currently, test-symlink and test-symlinkat are failing on z/OS:

    $ ./test-symlink
    .../test-symlink.h:64: assertion 'errno == ENOTDIR || errno == ENOENT' 
failed
    CEE5207E The signal SIGABRT was received.
    ABORT instruction

    $ ./test-symlinkat 
    .../test-symlink.h:64: assertion 'errno == ENOTDIR || errno == ENOENT' 
failed
    CEE5207E The signal SIGABRT was received.
    ABORT instruction

What happens in both cases is that errno == EINVAL. If I add that to the
ASSERT() condition at lines 63 and 84 of test-symlink.h (as of a3fd683d),
then these two tests pass.

IBM documents EINVAL as a possible return value for symlink():

    
https://www.ibm.com/support/knowledgecenter/SSLTBW_2.2.0/com.ibm.zos.v2r1.bpxb100/sym.htm

(symlinkat() does not appear to exist on this platform.)

However, the GNU/Linux man pages for symlink() and symlinkat() make no
mention of EINVAL. I don't know if this is a reasonable platform
variation, or a technical violation of POSIX. (If the latter, then I can
push this to IBM and they'll at least take it seriously.)


Please advise,


--Daniel


-- 
Daniel Richard G. || address@hidden
My ASCII-art .sig got a bad case of Times New Roman.