public UnixGroupInfo (uint group)
{
this.group = new Group ();
Group gr;
int r = Syscall.getgrgid_r (group, this.group, out gr);
if (r != 0 || gr == null)
throw new ArgumentException (Locale.GetText ("invalid group id"), "group");
}
public static Group fgetgrent (IntPtr stream)
{
_Group group;
int r;
lock (grp_lock) {
r = sys_fgetgrent (stream, out group);
}
if (r != 0)
return null;
Group gr = new Group ();
CopyGroup (gr, ref group);
return gr;
}
public static Group getgrent ()
{
_Group group;
int r;
lock (grp_lock) {
r = sys_getgrent (out group);
}
if (r != 0)
return null;
Group gr = new Group();
CopyGroup (gr, ref group);
return gr;
}
public static int getgrgid_r (uint uid, Group grbuf, out Group grbufp)
{
grbufp = null;
_Group group;
IntPtr _grbufp;
int r = sys_getgrgid_r (uid, out group, out _grbufp);
if (r == 0 && _grbufp != IntPtr.Zero) {
CopyGroup (grbuf, ref group);
grbufp = grbuf;
}
return r;
}
public static int getgrnam_r (string name, Group grbuf, out Group grbufp)
{
grbufp = null;
_Group group;
IntPtr _grbufp;
int r = sys_getgrnam_r (name, out group, out _grbufp);
if (r == 0 && _grbufp != IntPtr.Zero) {
CopyGroup (grbuf, ref group);
grbufp = grbuf;
}
return r;
}
public static Group getgrnam (string name)
{
_Group group;
int r;
lock (grp_lock) {
r = sys_getgrnam (name, out group);
}
if (r != 0)
return null;
Group gr = new Group ();
CopyGroup (gr, ref group);
return gr;
}
private static void CopyGroup (Group to, ref _Group from)
{
try {
to.gr_gid = from.gr_gid;
to.gr_name = UnixMarshal.PtrToString (from.gr_name);
to.gr_passwd = UnixMarshal.PtrToString (from.gr_passwd);
to.gr_mem = UnixMarshal.PtrToStringArray (from._gr_nmem_, from.gr_mem);
}
finally {
Stdlib.free (from.gr_mem);
Stdlib.free (from._gr_buf_);
from.gr_mem = IntPtr.Zero;
from._gr_buf_ = IntPtr.Zero;
}
}
public void Equality ()
{
Group orig = new Group ();
Group mod = new Group ();
mod.gr_name = orig.gr_name = "some name";
mod.gr_passwd = orig.gr_passwd = "some passwd";
mod.gr_gid = orig.gr_gid = 500;
mod.gr_mem = orig.gr_mem = new string[]{"foo", "bar"};
Assert.AreEqual (orig, mod, "#TE: copies should be equal");
mod.gr_name = "another name";
Assert.IsFalse (orig.Equals (mod), "#TE: changes should be reflected");
}
public UnixGroupInfo (Group group)
{
this.group = group;
}