Changes from Marc to implement fuse_get_context():

* an XS function to get the data
* a mention of it in Fuse.pm so it can be exported properly
* a pretty ugly hack to example.pl, which is how I tested it.

git-svn-id: svn+ssh://llin/home/dpavlin/private/svn/fuse/perl-llin@108 6e4b0b00-1209-0410-87b2-b275959b5705

diff --git a/Fuse.pm b/Fuse.pm
index 37fd364..5b2459f 100644 (file)
--- a/Fuse.pm
+++ b/Fuse.pm
@@ -21,14 +21,14 @@ our @ISA = qw(Exporter DynaLoader);
 # If you do not need this, moving things directly into @EXPORT or @EXPORT_OK
 # will save memory.
 our %EXPORT_TAGS = (
-                   'all' => [ qw(XATTR_CREATE XATTR_REPLACE) ],
+                   'all' => [ qw(XATTR_CREATE XATTR_REPLACE fuse_get_context) ],
                    'xattr' => [ qw(XATTR_CREATE XATTR_REPLACE) ]
                    );
 
 our @EXPORT_OK = ( @{ $EXPORT_TAGS{'all'} } );
 
 our @EXPORT = ();
-our $VERSION = '0.08';
+our $VERSION = '0.09_1';
 
 sub AUTOLOAD {
     # This AUTOLOAD is used to 'autoload' constants from the constant()

diff --git a/Fuse.xs b/Fuse.xs
index e6c293b..9e1d671 100644 (file)
--- a/Fuse.xs
+++ b/Fuse.xs
@@ -813,6 +813,24 @@ removexattr:               _PLfuse_removexattr,
 MODULE = Fuse          PACKAGE = Fuse
 PROTOTYPES: DISABLE
 
+SV*
+fuse_get_context()
+       PREINIT:
+       struct fuse_context *fc;
+       CODE:
+       fc = fuse_get_context();
+       if(fc) {
+               HV *hash = newHV();
+               hv_store(hash, "uid", 3, newSViv(fc->uid), 0);
+               hv_store(hash, "gid", 3, newSViv(fc->gid), 0);
+               hv_store(hash, "pid", 3, newSViv(fc->pid), 0);
+               RETVAL = newRV_noinc((SV*)hash);
+       } else {
+               XSRETURN_UNDEF;
+       }
+       OUTPUT:
+       RETVAL
+
 void
 perl_fuse_main(...)
        PREINIT:

diff --git a/examples/example.pl b/examples/example.pl
index a01ae5b..ed7ce57 100644 (file)
--- a/examples/example.pl
+++ b/examples/example.pl
@@ -2,7 +2,7 @@
 use strict;
 
 use blib;
-use Fuse;
+use Fuse qw(fuse_get_context);
 use POSIX qw(ENOENT EISDIR EINVAL);
 
 my (%files) = (
@@ -23,6 +23,12 @@ my (%files) = (
                mode => 0644,
                ctime => time()-1000
        },
+       me => {
+               size => 45,
+               type => 0100,
+               mode => 0644,
+               ctime => time()-1000
+       },
 );
 
 sub filename_fixup {
@@ -38,6 +44,7 @@ sub e_getattr {
        $file = '.' unless length($file);
        return -ENOENT() unless exists($files{$file});
        my ($size) = exists($files{$file}{cont}) ? length($files{$file}{cont}) : 0;
+       $size = $files{$file}{size} if exists $files{$file}{size};
        my ($modes) = ($files{$file}{type}<<9) + $files{$file}{mode};
        my ($dev, $ino, $rdev, $blocks, $gid, $uid, $nlink, $blksize) = (0,0,0,1,0,0,1,1024);
        my ($atime, $ctime, $mtime);
@@ -59,7 +66,7 @@ sub e_open {
        my ($file) = filename_fixup(shift);
        print("open called\n");
        return -ENOENT() unless exists($files{$file});
-       return -EISDIR() unless exists($files{$file}{cont});
+       return -EISDIR() if $files{$file}{type} & 0040;
        print("open ok\n");
        return 0;
 }
@@ -70,6 +77,11 @@ sub e_read {
        my ($file) = filename_fixup(shift);
        my ($buf,$off) = @_;
        return -ENOENT() unless exists($files{$file});
+       if(!exists($files{$file}{cont})) {
+               return -EINVAL() if $off > 0;
+               my $context = fuse_get_context();
+               return sprintf("pid=0x%08x uid=0x%08x gid=0x%08x\n",@$context{'pid','uid','gid'});
+       }
        return -EINVAL() if $off > length($files{$file}{cont});
        return 0 if $off == length($files{$file}{cont});
        return substr($files{$file}{cont},$off,$buf);