int Mp3OutputStream::Flush(PBYTE& p_written)
{
int encoded = 0;
#ifdef Mp3OutputStream_Buffering
if (m_inBufferPos > 0)
{
if (LameEncodeChunk(global_fags, m_inBuffer, 0, m_inBufferPos, bytes_per_sample, m_outBuffer, encoded))
{
if (encoded > 0 && writeCallback)
{
writeCallback(m_inBufferPos, (char *)m_outBuffer, encoded);
}
}
}
#endif
if (LameFlush(global_fags, m_outBuffer, encoded))
{
p_written = m_outBuffer;
return encoded;
}
return -1;
#ifdef Mp3OutputStream_Buffering
m_inBufferPos = 0;
#endif
}
void Channel::handleEvent(){
if(mRevents & (POLLIN | POLLPRI)){
if(readCallback) readCallback();
}
else if(mRevents & (POLLOUT)){
if(writeCallback) writeCallback();
}
}
// converse is called by PAM to interact with the user. Interaction means
// either writing something to stdout and stderr or reading something from
// stdin.
int converse(int n, const struct pam_message **msg, struct pam_response **resp, void *data)
{
int i;
struct pam_response *aresp;
// If no messages arrived, or the number of messages is greater than
// allowed, something is wrong with the caller.
if (n <= 0 || n > PAM_MAX_NUM_MSG) {
return PAM_CONV_ERR;
}
// According to pam_conv(3): "It is the caller's responsibility to release
// both, this array and the responses themselves, using free(3)." The
// caller in this situation is the PAM module and the array and the
// responses refer to aresp and aresp[i].resp.
aresp = calloc(n, sizeof *aresp);
if (aresp == NULL) {
return PAM_BUF_ERR;
}
// Loop over all messages and process them.
for (i = 0; i < n; ++i) {
aresp[i].resp_retcode = 0;
aresp[i].resp = NULL;
switch (msg[i]->msg_style) {
case PAM_PROMPT_ECHO_OFF:
// Read back response from user. What the user writes should not
// be echoed to the screen.
aresp[i].resp = readCallback((uintptr_t)data, 0);
if (aresp[i].resp == NULL) {
goto fail;
}
break;
case PAM_PROMPT_ECHO_ON:
// First write the message to stderr.
writeCallback((uintptr_t)data, STDERR_FILENO, (char *)(msg[i]->msg));
// Read back response from user. What the user writes will be
// echoed to the screen.
aresp[i].resp = readCallback((uintptr_t)data, 1);
if (aresp[i].resp == NULL) {
goto fail;
}
break;
case PAM_ERROR_MSG:
// Write message to stderr.
writeCallback((uintptr_t)data, STDERR_FILENO, (char *)(msg[i]->msg));
if (strlen(msg[i]->msg) > 0 && msg[i]->msg[strlen(msg[i]->msg) - 1] != '\n') {
writeCallback((uintptr_t)data, STDERR_FILENO, (char *)"\n");
}
break;
case PAM_TEXT_INFO:
// Write message to stdout.
writeCallback((uintptr_t)data, STDOUT_FILENO, (char *)(msg[i]->msg));
if (strlen(msg[i]->msg) > 0 && msg[i]->msg[strlen(msg[i]->msg) - 1] != '\n') {
writeCallback((uintptr_t)data, STDOUT_FILENO, (char *)"\n");
}
break;
default:
goto fail;
}
}
*resp = aresp;
return PAM_SUCCESS;
fail:
for (i = 0; i < n; ++i) {
if (aresp[i].resp != NULL) {
memset(aresp[i].resp, 0, strlen(aresp[i].resp));
free(aresp[i].resp);
}
}
memset(aresp, 0, n * sizeof *aresp);
*resp = NULL;
return PAM_CONV_ERR;
}
