On HP-UX 11.23 and 11.31, I'm seeing this test failure:
test-getlogin_r.c:81: assertion failed
sh[10]: 19109 Abort(coredump)
FAIL: test-getlogin_r
The reason is that getlogin_r (buf, 0) returns EINVAL instead of ERANGE
on this platform. I think it's not worth adding a workaround in gnulib,
just document it:
2011-01-02 Bruno Haible <br...@clisp.org>
getlogin_r: Avoid test failure on HP-UX 11.
* tests/test-getlogin_r.c (main): Allow an error code EINVAL instead of
ERANGE when the second argument is zero.
* doc/posix-functions/getlogin_r.texi: Document the HP-UX 11
portability problem.
--- doc/posix-functions/getlogin_r.texi.orig Mon Jan 3 02:47:46 2011
+++ doc/posix-functions/getlogin_r.texi Mon Jan 3 02:47:26 2011
@@ -29,4 +29,8 @@
@item
This function fails even when standard input is a tty on some platforms:
HP-UX 11.11.
+...@item
+This function fails with error code @code{EINVAL} instead of @code{ERANGE} when
+the second argument is zero on some platforms:
+HP-UX 11.31.
@end itemize
--- tests/test-getlogin_r.c.orig Mon Jan 3 02:47:46 2011
+++ tests/test-getlogin_r.c Mon Jan 3 02:44:03 2011
@@ -78,7 +78,13 @@
size_t i;
for (i = 0; i <= n; i++)
- ASSERT (getlogin_r (smallbuf, i) == ERANGE);
+ {
+ err = getlogin_r (smallbuf, i);
+ if (i == 0)
+ ASSERT (err == ERANGE || err == EINVAL);
+ else
+ ASSERT (err == ERANGE);
+ }
}
/* Test with a huge buffer. */
