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Merge pull request #8799 from dgarske/csharp_wince_unicode 

Fix issue with CSharp and Windows CE with conversion of ASCII and Unicode
pull/8815/merge
JacobBarthelmeh 2025-06-02 10:39:23 -06:00 committed by GitHub
parent 30490f9650 18aab1a883
commit ecb8cb744e
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
1 changed files with 36 additions and 34 deletions
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70
wrapper/CSharp/wolfSSL_CSharp/wolfSSL.cs
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@ -42,33 +42,43 @@ namespace wolfSSL.CSharp
*/
#if WindowsCE
/// <summary>
/// Convert unicode string to ASCII
/// Convert MBCS (8-bit single/multi byte) to Wide Char/Unicode (16-bit) character set
/// </summary>
public static string UnicodeToAscii(string msg)
public static string MultiByteToWideChar(string msg)
{
if (msg == null)
return null;
/* Convert Unicode to Bytes */
/* Convert to Byte Array */
byte[] bytes = Encoding.Unicode.GetBytes((string)msg.ToString());
/* Convert to ASCII */
return Encoding.ASCII.GetString(bytes, 0, bytes.Length);
/* Convert to String */
string ret = Encoding.ASCII.GetString(bytes, 0, bytes.Length);
/* Remove possible extra null terminator */
int len = 0;
while (len < ret.Length && ret[len] != 0) len++;
return ret.Substring(0, len);
}
/// <summary>
/// Convert string to Unicode
/// Convert Unicode/Wide Char (16-bit) to MBCS (8-bit single/multi byte) character set
/// </summary>
public static string AsciiToUnicode(string msg)
public static string WideCharToMultiByte(string msg)
{
if (msg == null)
return null;
/* Convert ASCII to Bytes */
byte[] bytes = Encoding.ASCII.GetBytes((string)msg.ToString());
/* Convert to Unicode */
/* Get length and round up to even for multibyte / unicode */
int msgLen = msg.Length;
msgLen = ((msgLen + 1) & ~1);
byte[] bytes = new byte[msgLen];
/* Convert to Byte Array */
byte[] msgBytes = Encoding.ASCII.GetBytes((string)msg.ToString());
msgBytes.CopyTo(bytes, 0);
/* Convert to String */
return Encoding.Unicode.GetString(bytes, 0, bytes.Length);
}
/// <summary>
/// WinCE version of Marshal for Unicode or Multi-byte pointer to ASCII string
/// WinCE version of Marshal for Multi-byte pointer to ASCII string
/// Similar conversion used in MultiByteToWideChar, but input is IntPtr
/// </summary>
public static string PtrToStringAnsi(IntPtr ptr)
{
@ -562,7 +572,7 @@ namespace wolfSSL.CSharp
*/
#if WindowsCE
[DllImport(wolfssl_dll)]
private extern static IntPtr wolfSSL_ERR_error_string(uint err, StringBuilder errOut);
private extern static IntPtr wolfSSL_ERR_reason_error_string(uint err);
[DllImport(wolfssl_dll)]
private extern static int wolfSSL_get_error(IntPtr ssl, int err);
public delegate void loggingCb(int lvl, string msg);
@ -574,7 +584,7 @@ namespace wolfSSL.CSharp
private extern static int wolfSSL_SetLoggingCb(loggingCb vc);
#else
[DllImport(wolfssl_dll, CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
private extern static IntPtr wolfSSL_ERR_error_string(uint err, StringBuilder errOut);
private extern static IntPtr wolfSSL_ERR_reason_error_string(uint err);
[DllImport(wolfssl_dll, CallingConvention = CallingConvention.Cdecl)]
private extern static int wolfSSL_get_error(IntPtr ssl, int err);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
@ -1571,7 +1581,7 @@ namespace wolfSSL.CSharp
}
#if WindowsCE
return wolfSSL_CTX_use_psk_identity_hint(local_ctx, wolfssl.AsciiToUnicode(hint));
return wolfSSL_CTX_use_psk_identity_hint(local_ctx, wolfssl.WideCharToMultiByte(hint));
#else
return wolfSSL_CTX_use_psk_identity_hint(local_ctx, hint);
#endif
@ -1862,7 +1872,7 @@ namespace wolfSSL.CSharp
return null;
#if WindowsCE
return wolfssl.UnicodeToAscii(ciphers);
return wolfssl.MultiByteToWideChar(ciphers);
#else
return ciphers.ToString();
#endif
@ -2133,7 +2143,7 @@ namespace wolfSSL.CSharp
}
#if WindowsCE
return wolfSSL_CTX_set_cipher_list(local_ctx, wolfssl.AsciiToUnicode(list));
return wolfSSL_CTX_set_cipher_list(local_ctx, wolfssl.WideCharToMultiByte(list));
#else
return wolfSSL_CTX_set_cipher_list(local_ctx, list);
#endif
@ -2168,7 +2178,7 @@ namespace wolfSSL.CSharp
}
#if WindowsCE
return wolfSSL_set_cipher_list(sslCtx, wolfssl.AsciiToUnicode(list));
return wolfSSL_set_cipher_list(sslCtx, wolfssl.WideCharToMultiByte(list));
#else
return wolfSSL_set_cipher_list(sslCtx, list);
#endif
@ -2227,10 +2237,6 @@ namespace wolfSSL.CSharp
try
{
int err;
StringBuilder err_name;
StringBuilder ret;
IntPtr sslCtx = unwrap_ssl(ssl);
if (sslCtx == IntPtr.Zero)
{
@ -2238,14 +2244,10 @@ namespace wolfSSL.CSharp
return null;
}
/* wolfSSL max error length is 80 */
ret = new StringBuilder(' ', 100);
err = wolfSSL_get_error(sslCtx, 0);
err_name = new StringBuilder(new String(' ', 80));
wolfSSL_ERR_error_string((uint)err, err_name);
ret.Append("Error " + err + " " + err_name.ToString());
return ret.ToString();
int err = wolfSSL_get_error(sslCtx, 0);
IntPtr err_ptr = wolfSSL_ERR_reason_error_string((uint)err);
string err_str = wolfssl.PtrToStringAnsi(err_ptr);
return "Error " + err + " " + err_str;
}
catch (Exception e)
{
@ -2274,7 +2276,7 @@ namespace wolfSSL.CSharp
}
#if WindowsCE
return wolfSSL_CTX_use_certificate_file(local_ctx, wolfssl.AsciiToUnicode(fileCert), type);
return wolfSSL_CTX_use_certificate_file(local_ctx, wolfssl.WideCharToMultiByte(fileCert), type);
#else
return wolfSSL_CTX_use_certificate_file(local_ctx, fileCert, type);
#endif
@ -2306,7 +2308,7 @@ namespace wolfSSL.CSharp
}
#if WindowsCE
return wolfSSL_CTX_load_verify_locations(local_ctx, wolfssl.AsciiToUnicode(fileCert), wolfssl.AsciiToUnicode(path));
return wolfSSL_CTX_load_verify_locations(local_ctx, wolfssl.WideCharToMultiByte(fileCert), wolfssl.WideCharToMultiByte(path));
#else
return wolfSSL_CTX_load_verify_locations(local_ctx, fileCert, path);
#endif
@ -2337,7 +2339,7 @@ namespace wolfSSL.CSharp
}
#if WindowsCE
return wolfSSL_CTX_use_PrivateKey_file(local_ctx, wolfssl.AsciiToUnicode(fileKey), type);
return wolfSSL_CTX_use_PrivateKey_file(local_ctx, wolfssl.WideCharToMultiByte(fileKey), type);
#else
return wolfSSL_CTX_use_PrivateKey_file(local_ctx, fileKey, type);
#endif
@ -2373,7 +2375,7 @@ namespace wolfSSL.CSharp
}
#if WindowsCE
return wolfSSL_SetTmpDH_file(sslCtx, wolfssl.AsciiToUnicode(dhparam), file_type);
return wolfSSL_SetTmpDH_file(sslCtx, wolfssl.WideCharToMultiByte(dhparam), file_type);
#else
return wolfSSL_SetTmpDH_file(sslCtx, dhparam, file_type);
#endif
@ -2408,7 +2410,7 @@ namespace wolfSSL.CSharp
}
#if WindowsCE
return wolfSSL_CTX_SetTmpDH_file(local_ctx, wolfssl.AsciiToUnicode(dhparam), file_type);
return wolfSSL_CTX_SetTmpDH_file(local_ctx, wolfssl.WideCharToMultiByte(dhparam), file_type);
#else
return wolfSSL_CTX_SetTmpDH_file(local_ctx, dhparam, file_type);
#endif