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#if MONO_FEATURE_APPLETLS || MONO_FEATURE_APPLE_X509
using System;
using System.Runtime.InteropServices;
namespace XamMac.CoreFoundation
{
internal static class CFHelpers
{
internal const string CoreFoundationLibrary = "/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation";
internal const string SecurityLibrary = "/System/Library/Frameworks/Security.framework/Security";
[DllImport (CoreFoundationLibrary)]
internal extern static void CFRelease (IntPtr obj);
[DllImport (CoreFoundationLibrary)]
internal extern static IntPtr CFRetain (IntPtr obj);
[StructLayout (LayoutKind.Sequential)]
struct CFRange {
public IntPtr loc;
public IntPtr len;
public CFRange (int loc, int len)
: this ((long) loc, (long) len)
{
}
public CFRange (long l, long len)
{
this.loc = (IntPtr) l;
this.len = (IntPtr) len;
}
}
[DllImport (CoreFoundationLibrary, CharSet=CharSet.Unicode)]
extern static IntPtr CFStringCreateWithCharacters (IntPtr allocator, string str, IntPtr count);
[DllImport (CoreFoundationLibrary, CharSet=CharSet.Unicode)]
extern static IntPtr CFStringGetLength (IntPtr handle);
[DllImport (CoreFoundationLibrary, CharSet=CharSet.Unicode)]
extern static IntPtr CFStringGetCharactersPtr (IntPtr handle);
[DllImport (CoreFoundationLibrary, CharSet=CharSet.Unicode)]
extern static IntPtr CFStringGetCharacters (IntPtr handle, CFRange range, IntPtr buffer);
internal static string FetchString (IntPtr handle)
{
if (handle == IntPtr.Zero)
return null;
string str;
int l = (int)CFStringGetLength (handle);
IntPtr u = CFStringGetCharactersPtr (handle);
IntPtr buffer = IntPtr.Zero;
if (u == IntPtr.Zero){
CFRange r = new CFRange (0, l);
buffer = Marshal.AllocCoTaskMem (l * 2);
CFStringGetCharacters (handle, r, buffer);
u = buffer;
}
unsafe {
str = new string ((char *) u, 0, l);
}
if (buffer != IntPtr.Zero)
Marshal.FreeCoTaskMem (buffer);
return str;
}
[DllImport (CoreFoundationLibrary)]
extern static IntPtr CFDataGetLength (IntPtr handle);
[DllImport (CoreFoundationLibrary)]
extern static IntPtr CFDataGetBytePtr (IntPtr handle);
internal static byte[] FetchDataBuffer (IntPtr handle)
{
var length = (int)CFDataGetLength (handle);
var buffer = new byte [length];
var ptr = CFDataGetBytePtr (handle);
Marshal.Copy (ptr, buffer, 0, buffer.Length);
return buffer;
}
[DllImport (CoreFoundationLibrary)]
extern static IntPtr CFDataCreateWithBytesNoCopy (IntPtr allocator, IntPtr bytes, IntPtr length, IntPtr bytesDeallocator);
[DllImport (CoreFoundationLibrary)]
extern static IntPtr CFDataCreate (IntPtr allocator, IntPtr bytes, IntPtr length);
[DllImport (SecurityLibrary)]
extern static IntPtr SecCertificateCreateWithData (IntPtr allocator, IntPtr cfData);
unsafe internal static IntPtr CreateCertificateFromData (byte[] data)
{
fixed (void *ptr = data) {
var cfdata = CFDataCreate (IntPtr.Zero, (IntPtr)ptr, new IntPtr (data.Length));
if (cfdata == IntPtr.Zero)
return IntPtr.Zero;
var certificate = SecCertificateCreateWithData (IntPtr.Zero, cfdata);
if (cfdata != IntPtr.Zero)
CFRelease (cfdata);
return certificate;
}
}
}
}
#endif
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