exit(0);
}
+sub explain {
+ print <<EOM;
+#
+# If the lfs (large file support: large meaning larger than two gigabytes)
+# tests are skipped or fail, it may mean either that your process is not
+# allowed to write large files or that the file system you are running
+# the tests on doesn't support large files, or both. You may also need
+# to reconfigure your kernel. (This is all very system-dependent.)
+#
+# Perl may still be able to support large files, once you have
+# such a process and such a (file) system.
+#
+EOM
+}
+
# Known have-nots.
if ($^O eq 'win32' || $^O eq 'vms') {
print "1..0\n# no sparse files\n";
# consume less blocks than one megabyte (assuming nobody has
# one megabyte blocks...)
-my $O_LARGEFILE;
-eval { $O_LARGEFILE = O_LARGEFILE };
-$O_LARGEFILE = 0 unless defined $O_LARGEFILE;
-
-sysopen(BIG, "big", O_WRONLY|O_CREAT|O_TRUNC|$O_LARGEFILE) or
+sysopen(BIG, "big", O_WRONLY|O_CREAT|O_TRUNC) or
do { warn "sysopen failed: $!\n"; bye };
sysseek(BIG, 1_000_000, SEEK_SET);
syswrite(BIG, "big");
# By now we better be sure that we do have sparse files:
# if we are not, the following will hog 5 gigabytes of disk. Ooops.
-print "1..8\n";
-
-my $fail = 0;
-
-sysopen(BIG, "big", O_WRONLY|O_CREAT|O_TRUNC|$O_LARGEFILE) or
+sysopen(BIG, "big", O_WRONLY|O_CREAT|O_TRUNC) or
do { warn "sysopen failed: $!\n"; bye };
sysseek(BIG, 5_000_000_000, SEEK_SET);
-syswrite(BIG, "big");
+# The syswrite will fail if there are are filesize limitations (process or fs).
+unless(syswrite(BIG, "big") == 3) {
+ $ENV{LC_ALL} = "C";
+ if ($! =~/File too large/) {
+ print "1..0\n# writing past 2GB failed\n";
+ explain();
+ bye();
+ }
+}
close BIG;
@s = stat("big");
$fail++;
}
+print "1..8\n";
+
+my $fail = 0;
+
fail unless $s[7] == 5_000_000_003; # exercizes pp_stat
print "ok 1\n";
fail unless $big eq "big";
print "ok 8\n";
-bye();
+explain if $fail;
-if ($fail) {
- print STDERR <<EOM;
-#
-# If the lfs (large file support) tests fail, it means that
-# the *file system* you are running the tests on doesn't support
-# large files (files larger than two gigabytes). Perl may still
-# be able to support such files, once you have such a file system.
-#
-EOM
-}
+bye();
# eof