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avformat/tls_schannel: forward AVIO_FLAG_NONBLOCK to tcp stream

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Fixes for example rtmps streaming over schannel.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Timo Rothenpieler 2024-06-03 22:31:37 +02:00 committed by Paul B Mahol
parent 23e84a04ff
commit 163da15c52
1 changed files with 14 additions and 1 deletions
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15
libavformat/tls_schannel.c
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@ -113,6 +113,7 @@ static int tls_shutdown_client(URLContext *h)
c->request_flags, 0, 0, NULL, 0, &c->ctxt_handle,
&outbuf_desc, &c->context_flags, &c->ctxt_timestamp);
if (sspi_ret == SEC_E_OK || sspi_ret == SEC_I_CONTEXT_EXPIRED) {
s->tcp->flags &= ~AVIO_FLAG_NONBLOCK;
ret = ffurl_write(s->tcp, outbuf.pvBuffer, outbuf.cbBuffer);
FreeContextBuffer(outbuf.pvBuffer);
if (ret < 0 || ret != outbuf.cbBuffer)
@ -316,6 +317,7 @@ static int tls_client_handshake(URLContext *h)
goto fail;
}
s->tcp->flags &= ~AVIO_FLAG_NONBLOCK;
ret = ffurl_write(s->tcp, outbuf.pvBuffer, outbuf.cbBuffer);
FreeContextBuffer(outbuf.pvBuffer);
if (ret < 0 || ret != outbuf.cbBuffer) {
@ -416,11 +418,16 @@ static int tls_read(URLContext *h, uint8_t *buf, int len)
}
}
s->tcp->flags &= ~AVIO_FLAG_NONBLOCK;
s->tcp->flags |= h->flags & AVIO_FLAG_NONBLOCK;
ret = ffurl_read(s->tcp, c->enc_buf + c->enc_buf_offset,
c->enc_buf_size - c->enc_buf_offset);
if (ret == AVERROR_EOF) {
c->connection_closed = 1;
ret = 0;
} else if (ret == AVERROR(EAGAIN)) {
ret = 0;
} else if (ret < 0) {
av_log(h, AV_LOG_ERROR, "Unable to read from socket\n");
return ret;
@ -564,8 +571,14 @@ static int tls_write(URLContext *h, const uint8_t *buf, int len)
sspi_ret = EncryptMessage(&c->ctxt_handle, 0, &outbuf_desc, 0);
if (sspi_ret == SEC_E_OK) {
len = outbuf[0].cbBuffer + outbuf[1].cbBuffer + outbuf[2].cbBuffer;
s->tcp->flags &= ~AVIO_FLAG_NONBLOCK;
s->tcp->flags |= h->flags & AVIO_FLAG_NONBLOCK;
ret = ffurl_write(s->tcp, data, len);
if (ret < 0 || ret != len) {
if (ret == AVERROR(EAGAIN)) {
goto done;
} else if (ret < 0 || ret != len) {
ret = AVERROR(EIO);
av_log(h, AV_LOG_ERROR, "Writing encrypted data to socket failed\n");
goto done;