- Buffer buffer;
- unsigned char buf[8192];
- int len;
-
- /* Format a message to the agent. */
- buffer_init(&buffer);
- buffer_put_char(&buffer, SSH_AGENTC_ADD_RSA_IDENTITY);
- buffer_put_int(&buffer, BN_num_bits(key->n));
- buffer_put_bignum(&buffer, key->n);
- buffer_put_bignum(&buffer, key->e);
- buffer_put_bignum(&buffer, key->d);
- /* To keep within the protocol: p < q for ssh. in SSL p > q */
- buffer_put_bignum(&buffer, key->iqmp); /* ssh key->u */
- buffer_put_bignum(&buffer, key->q); /* ssh key->p, SSL key->q */
- buffer_put_bignum(&buffer, key->p); /* ssh key->q, SSL key->p */
- buffer_put_string(&buffer, comment, strlen(comment));
-
- /* Get the length of the message, and format it in the buffer. */
- len = buffer_len(&buffer);
- PUT_32BIT(buf, len);
-
- /* Send the length and then the packet to the agent. */
- if (atomicio(write, auth->fd, buf, 4) != 4 ||
- atomicio(write, auth->fd, buffer_ptr(&buffer),
- buffer_len(&buffer)) != buffer_len(&buffer)) {
- error("Error writing to authentication socket.");
- buffer_free(&buffer);
+ Buffer msg;
+ int type, constrained = (life || confirm);
+
+ buffer_init(&msg);
+
+ switch (key->type) {
+ case KEY_RSA1:
+ type = constrained ?
+ SSH_AGENTC_ADD_RSA_ID_CONSTRAINED :
+ SSH_AGENTC_ADD_RSA_IDENTITY;
+ buffer_put_char(&msg, type);
+ ssh_encode_identity_rsa1(&msg, key->rsa, comment);
+ break;
+ case KEY_RSA:
+ case KEY_DSA:
+ type = constrained ?
+ SSH2_AGENTC_ADD_ID_CONSTRAINED :
+ SSH2_AGENTC_ADD_IDENTITY;
+ buffer_put_char(&msg, type);
+ ssh_encode_identity_ssh2(&msg, key, comment);
+ break;
+ default:
+ buffer_free(&msg);