NetWare port from Guruprasad S <SGURUPRASAD@novell.com>.

[p5sagit/p5-mst-13.2.git] / t / lib / syslfs.t

diff --git a/t/lib/syslfs.t b/t/lib/syslfs.t
index cec839b..8d9769f 100644 (file)
--- a/t/lib/syslfs.t
+++ b/t/lib/syslfs.t
@@ -14,6 +14,13 @@ BEGIN {
        require Fcntl; import Fcntl qw(/^O_/ /^SEEK_/);
 }
 
+use strict;
+
+$| = 1;
+
+our @s;
+our $fail;
+
 sub zap {
     close(BIG);
     unlink("big");
@@ -53,7 +60,7 @@ EOM
 print "# checking whether we have sparse files...\n";
 
 # Known have-nots.
-if ($^O eq 'MSWin32' || $^O eq 'VMS') {
+if ($^O eq 'MSWin32' || $^O eq 'NetWare' || $^O eq 'VMS') {
     print "1..0 # Skip: no sparse files in $^O\n";
     bye();
 }
@@ -164,9 +171,30 @@ sub fail () {
     $fail++;
 }
 
+sub offset ($$) {
+    my ($offset_will_be, $offset_want) = @_;
+    my $offset_is = eval $offset_will_be;
+    unless ($offset_is == $offset_want) {
+        print "# bad offset $offset_is, want $offset_want\n";
+       my ($offset_func) = ($offset_will_be =~ /^(\w+)/);
+       if (unpack("L", pack("L", $offset_want)) == $offset_is) {
+           print "# 32-bit wraparound suspected in $offset_func() since\n";
+           print "# $offset_want cast into 32 bits equals $offset_is.\n";
+       } elsif ($offset_want - unpack("L", pack("L", $offset_want)) - 1
+                == $offset_is) {
+           print "# 32-bit wraparound suspected in $offset_func() since\n";
+           printf "# %s - unpack('L', pack('L', %s)) - 1 equals %s.\n",
+               $offset_want,
+               $offset_want,
+               $offset_is;
+        }
+        fail;
+    }
+}
+
 print "1..17\n";
 
-my $fail = 0;
+$fail = 0;
 
 fail unless $s[7] == 5_000_000_003;    # exercizes pp_stat
 print "ok 1\n";
@@ -182,28 +210,28 @@ print "ok 4\n";
 
 sysopen(BIG, "big", O_RDONLY) or do { warn "sysopen failed: $!\n"; bye };
 
-fail unless sysseek(BIG, 4_500_000_000, SEEK_SET) == 4_500_000_000;
+offset('sysseek(BIG, 4_500_000_000, SEEK_SET)', 4_500_000_000);
 print "ok 5\n";
 
-fail unless sysseek(BIG, 0, SEEK_CUR) == 4_500_000_000;
+offset('sysseek(BIG, 0, SEEK_CUR)', 4_500_000_000);
 print "ok 6\n";
 
-fail unless sysseek(BIG, 1, SEEK_CUR) == 4_500_000_001;
+offset('sysseek(BIG, 1, SEEK_CUR)', 4_500_000_001);
 print "ok 7\n";
 
-fail unless sysseek(BIG, 0, SEEK_CUR) == 4_500_000_001;
+offset('sysseek(BIG, 0, SEEK_CUR)', 4_500_000_001);
 print "ok 8\n";
 
-fail unless sysseek(BIG, -1, SEEK_CUR) == 4_500_000_000;
+offset('sysseek(BIG, -1, SEEK_CUR)', 4_500_000_000);
 print "ok 9\n";
 
-fail unless sysseek(BIG, 0, SEEK_CUR) == 4_500_000_000;
+offset('sysseek(BIG, 0, SEEK_CUR)', 4_500_000_000);
 print "ok 10\n";
 
-fail unless sysseek(BIG, -3, SEEK_END) == 5_000_000_000;
+offset('sysseek(BIG, -3, SEEK_END)', 5_000_000_000);
 print "ok 11\n";
 
-fail unless sysseek(BIG, 0, SEEK_CUR) == 5_000_000_000;
+offset('sysseek(BIG, 0, SEEK_CUR)', 5_000_000_000);
 print "ok 12\n";
 
 my $big;
@@ -215,6 +243,8 @@ fail unless $big eq "big";
 print "ok 14\n";
 
 # 705_032_704 = (I32)5_000_000_000
+# See that we don't have "big" in the 705_... spot:
+# that would mean that we have a wraparound.
 fail unless sysseek(BIG, 705_032_704, SEEK_SET);
 print "ok 15\n";