6 use POSIX qw(ENOENT ENOSYS EEXIST EPERM O_RDONLY O_RDWR O_APPEND O_CREAT);
7 use Fcntl qw(S_ISBLK S_ISCHR S_ISFIFO SEEK_SET);
8 require 'syscall.ph'; # for SYS_mknod and SYS_lchown
10 sub fixup { return "/tmp/fusetest-" . $ENV{LOGNAME} . shift }
13 my ($file) = fixup(shift);
14 my (@list) = lstat($file);
15 return -$! unless @list;
20 my ($dirname) = fixup(shift);
21 unless(opendir(DIRHANDLE,$dirname)) {
24 my (@files) = readdir(DIRHANDLE);
30 my ($file) = fixup(shift);
32 return -$! unless sysopen(FILE,$file,$mode);
38 my ($file,$bufsize,$off) = @_;
40 my ($handle) = new IO::File;
41 return -ENOENT() unless -e ($file = fixup($file));
42 my ($fsize) = -s $file;
43 return -ENOSYS() unless open($handle,$file);
44 if(seek($handle,$off,SEEK_SET)) {
45 read($handle,$rv,$bufsize);
51 my ($file,$buf,$off) = @_;
53 return -ENOENT() unless -e ($file = fixup($file));
54 my ($fsize) = -s $file;
55 return -ENOSYS() unless open(FILE,'+<',$file);
56 if($rv = seek(FILE,$off,SEEK_SET)) {
57 $rv = print(FILE $buf);
59 $rv = -ENOSYS() unless $rv;
64 sub err { return (-shift || -$!) }
66 sub x_readlink { return readlink(fixup(shift)); }
67 sub x_unlink { return unlink(fixup(shift)) ? 0 : -$!; }
69 sub x_symlink { print "symlink\n"; return symlink(shift,fixup(shift)) ? 0 : -$!; }
72 my ($old) = fixup(shift);
73 my ($new) = fixup(shift);
74 my ($err) = rename($old,$new) ? 0 : -ENOENT();
77 sub x_link { return link(fixup(shift),fixup(shift)) ? 0 : -$! }
79 my ($fn) = fixup(shift);
80 print "nonexistent $fn\n" unless -e $fn;
82 # perl's chown() does not chown symlinks, it chowns the symlink's
83 # target. it fails when the link's target doesn't exist, because
84 # the stat64() syscall fails.
85 # this causes error messages when unpacking symlinks in tarballs.
86 my ($err) = syscall(&SYS_lchown,$fn,$uid,$gid,$fn) ? -$! : 0;
90 my ($fn) = fixup(shift);
92 my ($err) = chmod($mode,$fn) ? 0 : -$!;
95 sub x_truncate { return truncate(fixup(shift),shift) ? 0 : -$! ; }
96 sub x_utime { return utime($_[1],$_[2],fixup($_[0])) ? 0:-$!; }
98 sub x_mkdir { my ($name, $perm) = @_; return 0 if mkdir(fixup($name),$perm); return -$!; }
99 sub x_rmdir { return 0 if rmdir fixup(shift); return -$!; }
102 # since this is called for ALL files, not just devices, I'll do some checks
103 # and possibly run the real mknod command.
104 my ($file, $modes, $dev) = @_;
105 $file = fixup($file);
107 syscall(&SYS_mknod,$file,$modes,$dev);
112 sub x_statfs {return 255,1000000,500000,1000000,500000,4096}
113 my ($mountpoint) = "";
114 $mountpoint = shift(@ARGV) if @ARGV;
116 mountpoint=>$mountpoint,
117 getattr =>"main::x_getattr",
118 readlink=>"main::x_readlink",
119 getdir =>"main::x_getdir",
120 mknod =>"main::x_mknod",
121 mkdir =>"main::x_mkdir",
122 unlink =>"main::x_unlink",
123 rmdir =>"main::x_rmdir",
124 symlink =>"main::x_symlink",
125 rename =>"main::x_rename",
126 link =>"main::x_link",
127 chmod =>"main::x_chmod",
128 chown =>"main::x_chown",
129 truncate=>"main::x_truncate",
130 utime =>"main::x_utime",
131 open =>"main::x_open",
132 read =>"main::x_read",
133 write =>"main::x_write",
134 statfs =>"main::x_statfs",