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(C) SSH Auth Failure Reason (AuthenticatePwPk)This example demonstrates how to determine the failure reason for the case where both a password and private key are required for authentication. If authentication fails, was it because of an invalid private key, or an invalid password? Note: This example requires a feature introduced in Chilkat v9.5.0.79
#include <C_CkSshKey.h> #include <C_CkSsh.h> #include <C_CkJsonObject.h> void ChilkatSample(void) { HCkSshKey key; BOOL success; HCkSsh ssh; HCkJsonObject json; // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // Load a private key to be used for SSH authentication. key = CkSshKey_Create(); CkSshKey_putPassword(key,"key_password"); success = CkSshKey_FromOpenSshPrivateKey(key,CkSshKey_loadText(key,"qa_data/my_private_key_file")); if (success != TRUE) { printf("%s\n",CkSshKey_lastErrorText(key)); CkSshKey_Dispose(key); return; } ssh = CkSsh_Create(); success = CkSsh_Connect(ssh,"ssh.example.com",22); if (success != TRUE) { printf("%s\n",CkSsh_lastErrorText(ssh)); CkSshKey_Dispose(key); CkSsh_Dispose(ssh); return; } // Authenticate using both a password and private key. success = CkSsh_AuthenticatePwPk(ssh,"myLogin","myPassword",key); if (success == TRUE) { printf("Authentication is successful!\n"); CkSshKey_Dispose(key); CkSsh_Dispose(ssh); return; } // If we get here, it means the authentication failed. // To find out why, get the LastJsonData // This is a feature added in Chilkat v9.5.0.79 json = CkSsh_LastJsonData(ssh); CkJsonObject_putEmitCompact(json,FALSE); // This is the JSON if the key is correct, but the password is incorrect: // { // "public_key_type": "rsa", // "partialAuthResult": "publickey success. continue to authenticate with password...", // "authResult": "failed", // "authFailReason": "Password is incorrect" // } // This is the JSON if the key is incorrect. We won't know if the password is also incorrect until // the key is made correct so that authentication proceeds to check the password. // { // "public_key_type": "rsa", // "authResult": "failed", // "authFailReason": "Key is incorrect" // } // To get the authResult anbd authFailReason: printf("authResult: %s\n",CkJsonObject_stringOf(json,"authResult")); printf("authFailReason: %s\n",CkJsonObject_stringOf(json,"authFailReason")); CkJsonObject_Dispose(json); CkSshKey_Dispose(key); CkSsh_Dispose(ssh); } |
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