use IO::File;
use POSIX qw(ENOENT ENOSYS EEXIST EPERM O_RDONLY O_RDWR O_APPEND O_CREAT);
use Fcntl qw(S_ISBLK S_ISCHR S_ISFIFO SEEK_SET);
-require 'syscall.ph'; # for SYS_mknod and SYS_lchown
+my $can_syscall = eval {
+ require 'syscall.ph'; # for SYS_mknod and SYS_lchown
+};
+if (!$can_syscall && open my $fh, '<', '/usr/include/sys/syscall.h') {
+ local $/ = undef;
+ my %sys = do { local $/ = undef;
+ <$fh> =~ m/\#define \s+ (\w+) \s+ (\d+)/gxms;
+ };
+ close $fh;
+ if ($sys{SYS_mknod} && $sys{SYS_lchown}) {
+ *SYS_mknod = sub { $sys{SYS_mknod} };
+ *SYS_lchown = sub { $sys{SYS_lchown} };
+ $can_syscall = 1;
+ }
+}
-my $tmp_path = "/tmp/fusetest-" . $ENV{LOGNAME};
+my $tmp = -d '/private' ? '/private/tmp' : '/tmp';
+my $tmp_path = "$tmp/fusetest-" . $ENV{LOGNAME};
if (! -e $tmp_path) {
mkdir($tmp_path) || die "can't create $tmp_path: $!";
}
-sub fixup { return $tmp_path . shift }
+sub fixup { print STDERR "fixup $_[0] from @{[caller]}\n";
+ my ($path) = @_;
+ return $tmp_path if $path eq '/';
+ return $tmp_path . $path;
+}
sub x_getattr {
my ($file) = fixup(shift);
}
sub x_link { return link(fixup(shift),fixup(shift)) ? 0 : -$! }
sub x_chown {
+ return -ENOSYS() if ! $can_syscall;
my ($fn) = fixup(shift);
print "nonexistent $fn\n" unless -e $fn;
my ($uid,$gid) = @_;
sub x_rmdir { return 0 if rmdir fixup(shift); return -$!; }
sub x_mknod {
+ return -ENOSYS() if ! $can_syscall;
# since this is called for ALL files, not just devices, I'll do some checks
# and possibly run the real mknod command.
my ($file, $modes, $dev) = @_;