+#define COPY_STRING(s) (s) ? strdup(s) : NULL
+
+ reply = malloc(sizeof(struct pam_response) * num_msg);
+ if (!reply) return PAM_CONV_ERR;
+
+ for (replies = 0; replies < num_msg; replies++) {
+ switch (msg[replies]->msg_style) {
+ case PAM_PROMPT_ECHO_ON:
+ reply[replies].resp_retcode = PAM_SUCCESS;
+ reply[replies].resp = COPY_STRING(PAM_username);
+ /* PAM frees resp */
+ break;
+ case PAM_PROMPT_ECHO_OFF:
+ reply[replies].resp_retcode = PAM_SUCCESS;
+ reply[replies].resp = COPY_STRING(PAM_password);
+ /* PAM frees resp */
+ break;
+ case PAM_TEXT_INFO:
+ /* fall through */
+ case PAM_ERROR_MSG:
+ /* ignore it, but pam still wants a NULL response... */
+ reply[replies].resp_retcode = PAM_SUCCESS;
+ reply[replies].resp = NULL;
+ break;
+ default:
+ /* Must be an error of some sort... */
+ free (reply);
+ PAM_error = 1;
+ return PAM_CONV_ERR;
+ }
+ }
+ *resp = reply;