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