--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/curl/lib/curl_rtmp.c	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,316 @@
+/***************************************************************************
+ *                      _   _ ____  _
+ *  Project         ___| | | |  _ \| |
+ *                 / __| | | | |_) | |
+ *                | (__| |_| |  _ <| |___
+ *                 \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 2012 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 2010, Howard Chu, <hyc@highlandsun.com>
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at https://curl.haxx.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ***************************************************************************/
+
+#include "curl_setup.h"
+
+#ifdef USE_LIBRTMP
+
+#include "curl_rtmp.h"
+#include "urldata.h"
+#include "nonblock.h" /* for curlx_nonblock */
+#include "progress.h" /* for Curl_pgrsSetUploadSize */
+#include "transfer.h"
+#include "warnless.h"
+#include <curl/curl.h>
+#include <librtmp/rtmp.h>
+#include "curl_memory.h"
+/* The last #include file should be: */
+#include "memdebug.h"
+
+#if defined(WIN32) && !defined(USE_LWIPSOCK)
+#define setsockopt(a,b,c,d,e) (setsockopt)(a,b,c,(const char *)d,(int)e)
+#define SET_RCVTIMEO(tv,s)   int tv = s*1000
+#elif defined(LWIP_SO_SNDRCVTIMEO_NONSTANDARD)
+#define SET_RCVTIMEO(tv,s)   int tv = s*1000
+#else
+#define SET_RCVTIMEO(tv,s)   struct timeval tv = {s,0}
+#endif
+
+#define DEF_BUFTIME    (2*60*60*1000)    /* 2 hours */
+
+static CURLcode rtmp_setup_connection(struct connectdata *conn);
+static CURLcode rtmp_do(struct connectdata *conn, bool *done);
+static CURLcode rtmp_done(struct connectdata *conn, CURLcode, bool premature);
+static CURLcode rtmp_connect(struct connectdata *conn, bool *done);
+static CURLcode rtmp_disconnect(struct connectdata *conn, bool dead);
+
+static Curl_recv rtmp_recv;
+static Curl_send rtmp_send;
+
+/*
+ * RTMP protocol handler.h, based on https://rtmpdump.mplayerhq.hu
+ */
+
+const struct Curl_handler Curl_handler_rtmp = {
+  "RTMP",                               /* scheme */
+  rtmp_setup_connection,                /* setup_connection */
+  rtmp_do,                              /* do_it */
+  rtmp_done,                            /* done */
+  ZERO_NULL,                            /* do_more */
+  rtmp_connect,                         /* connect_it */
+  ZERO_NULL,                            /* connecting */
+  ZERO_NULL,                            /* doing */
+  ZERO_NULL,                            /* proto_getsock */
+  ZERO_NULL,                            /* doing_getsock */
+  ZERO_NULL,                            /* domore_getsock */
+  ZERO_NULL,                            /* perform_getsock */
+  rtmp_disconnect,                      /* disconnect */
+  ZERO_NULL,                            /* readwrite */
+  ZERO_NULL,                            /* connection_check */
+  PORT_RTMP,                            /* defport */
+  CURLPROTO_RTMP,                       /* protocol */
+  PROTOPT_NONE                          /* flags*/
+};
+
+const struct Curl_handler Curl_handler_rtmpt = {
+  "RTMPT",                              /* scheme */
+  rtmp_setup_connection,                /* setup_connection */
+  rtmp_do,                              /* do_it */
+  rtmp_done,                            /* done */
+  ZERO_NULL,                            /* do_more */
+  rtmp_connect,                         /* connect_it */
+  ZERO_NULL,                            /* connecting */
+  ZERO_NULL,                            /* doing */
+  ZERO_NULL,                            /* proto_getsock */
+  ZERO_NULL,                            /* doing_getsock */
+  ZERO_NULL,                            /* domore_getsock */
+  ZERO_NULL,                            /* perform_getsock */
+  rtmp_disconnect,                      /* disconnect */
+  ZERO_NULL,                            /* readwrite */
+  ZERO_NULL,                            /* connection_check */
+  PORT_RTMPT,                           /* defport */
+  CURLPROTO_RTMPT,                      /* protocol */
+  PROTOPT_NONE                          /* flags*/
+};
+
+const struct Curl_handler Curl_handler_rtmpe = {
+  "RTMPE",                              /* scheme */
+  rtmp_setup_connection,                /* setup_connection */
+  rtmp_do,                              /* do_it */
+  rtmp_done,                            /* done */
+  ZERO_NULL,                            /* do_more */
+  rtmp_connect,                         /* connect_it */
+  ZERO_NULL,                            /* connecting */
+  ZERO_NULL,                            /* doing */
+  ZERO_NULL,                            /* proto_getsock */
+  ZERO_NULL,                            /* doing_getsock */
+  ZERO_NULL,                            /* domore_getsock */
+  ZERO_NULL,                            /* perform_getsock */
+  rtmp_disconnect,                      /* disconnect */
+  ZERO_NULL,                            /* readwrite */
+  ZERO_NULL,                            /* connection_check */
+  PORT_RTMP,                            /* defport */
+  CURLPROTO_RTMPE,                      /* protocol */
+  PROTOPT_NONE                          /* flags*/
+};
+
+const struct Curl_handler Curl_handler_rtmpte = {
+  "RTMPTE",                             /* scheme */
+  rtmp_setup_connection,                /* setup_connection */
+  rtmp_do,                              /* do_it */
+  rtmp_done,                            /* done */
+  ZERO_NULL,                            /* do_more */
+  rtmp_connect,                         /* connect_it */
+  ZERO_NULL,                            /* connecting */
+  ZERO_NULL,                            /* doing */
+  ZERO_NULL,                            /* proto_getsock */
+  ZERO_NULL,                            /* doing_getsock */
+  ZERO_NULL,                            /* domore_getsock */
+  ZERO_NULL,                            /* perform_getsock */
+  rtmp_disconnect,                      /* disconnect */
+  ZERO_NULL,                            /* readwrite */
+  ZERO_NULL,                            /* connection_check */
+  PORT_RTMPT,                           /* defport */
+  CURLPROTO_RTMPTE,                     /* protocol */
+  PROTOPT_NONE                          /* flags*/
+};
+
+const struct Curl_handler Curl_handler_rtmps = {
+  "RTMPS",                              /* scheme */
+  rtmp_setup_connection,                /* setup_connection */
+  rtmp_do,                              /* do_it */
+  rtmp_done,                            /* done */
+  ZERO_NULL,                            /* do_more */
+  rtmp_connect,                         /* connect_it */
+  ZERO_NULL,                            /* connecting */
+  ZERO_NULL,                            /* doing */
+  ZERO_NULL,                            /* proto_getsock */
+  ZERO_NULL,                            /* doing_getsock */
+  ZERO_NULL,                            /* domore_getsock */
+  ZERO_NULL,                            /* perform_getsock */
+  rtmp_disconnect,                      /* disconnect */
+  ZERO_NULL,                            /* readwrite */
+  ZERO_NULL,                            /* connection_check */
+  PORT_RTMPS,                           /* defport */
+  CURLPROTO_RTMPS,                      /* protocol */
+  PROTOPT_NONE                          /* flags*/
+};
+
+const struct Curl_handler Curl_handler_rtmpts = {
+  "RTMPTS",                             /* scheme */
+  rtmp_setup_connection,                /* setup_connection */
+  rtmp_do,                              /* do_it */
+  rtmp_done,                            /* done */
+  ZERO_NULL,                            /* do_more */
+  rtmp_connect,                         /* connect_it */
+  ZERO_NULL,                            /* connecting */
+  ZERO_NULL,                            /* doing */
+  ZERO_NULL,                            /* proto_getsock */
+  ZERO_NULL,                            /* doing_getsock */
+  ZERO_NULL,                            /* domore_getsock */
+  ZERO_NULL,                            /* perform_getsock */
+  rtmp_disconnect,                      /* disconnect */
+  ZERO_NULL,                            /* readwrite */
+  ZERO_NULL,                            /* connection_check */
+  PORT_RTMPS,                           /* defport */
+  CURLPROTO_RTMPTS,                     /* protocol */
+  PROTOPT_NONE                          /* flags*/
+};
+
+static CURLcode rtmp_setup_connection(struct connectdata *conn)
+{
+  RTMP *r = RTMP_Alloc();
+  if(!r)
+    return CURLE_OUT_OF_MEMORY;
+
+  RTMP_Init(r);
+  RTMP_SetBufferMS(r, DEF_BUFTIME);
+  if(!RTMP_SetupURL(r, conn->data->change.url)) {
+    RTMP_Free(r);
+    return CURLE_URL_MALFORMAT;
+  }
+  conn->proto.rtmp = r;
+  return CURLE_OK;
+}
+
+static CURLcode rtmp_connect(struct connectdata *conn, bool *done)
+{
+  RTMP *r = conn->proto.rtmp;
+  SET_RCVTIMEO(tv, 10);
+
+  r->m_sb.sb_socket = (int)conn->sock[FIRSTSOCKET];
+
+  /* We have to know if it's a write before we send the
+   * connect request packet
+   */
+  if(conn->data->set.upload)
+    r->Link.protocol |= RTMP_FEATURE_WRITE;
+
+  /* For plain streams, use the buffer toggle trick to keep data flowing */
+  if(!(r->Link.lFlags & RTMP_LF_LIVE) &&
+     !(r->Link.protocol & RTMP_FEATURE_HTTP))
+    r->Link.lFlags |= RTMP_LF_BUFX;
+
+  (void)curlx_nonblock(r->m_sb.sb_socket, FALSE);
+  setsockopt(r->m_sb.sb_socket, SOL_SOCKET, SO_RCVTIMEO,
+             (char *)&tv, sizeof(tv));
+
+  if(!RTMP_Connect1(r, NULL))
+    return CURLE_FAILED_INIT;
+
+  /* Clients must send a periodic BytesReceived report to the server */
+  r->m_bSendCounter = true;
+
+  *done = TRUE;
+  conn->recv[FIRSTSOCKET] = rtmp_recv;
+  conn->send[FIRSTSOCKET] = rtmp_send;
+  return CURLE_OK;
+}
+
+static CURLcode rtmp_do(struct connectdata *conn, bool *done)
+{
+  struct Curl_easy *data = conn->data;
+  RTMP *r = conn->proto.rtmp;
+
+  if(!RTMP_ConnectStream(r, 0))
+    return CURLE_FAILED_INIT;
+
+  if(conn->data->set.upload) {
+    Curl_pgrsSetUploadSize(data, data->state.infilesize);
+    Curl_setup_transfer(data, -1, -1, FALSE, FIRSTSOCKET);
+  }
+  else
+    Curl_setup_transfer(data, FIRSTSOCKET, -1, FALSE, -1);
+  *done = TRUE;
+  return CURLE_OK;
+}
+
+static CURLcode rtmp_done(struct connectdata *conn, CURLcode status,
+                          bool premature)
+{
+  (void)conn; /* unused */
+  (void)status; /* unused */
+  (void)premature; /* unused */
+
+  return CURLE_OK;
+}
+
+static CURLcode rtmp_disconnect(struct connectdata *conn,
+                                bool dead_connection)
+{
+  RTMP *r = conn->proto.rtmp;
+  (void)dead_connection;
+  if(r) {
+    conn->proto.rtmp = NULL;
+    RTMP_Close(r);
+    RTMP_Free(r);
+  }
+  return CURLE_OK;
+}
+
+static ssize_t rtmp_recv(struct connectdata *conn, int sockindex, char *buf,
+                         size_t len, CURLcode *err)
+{
+  RTMP *r = conn->proto.rtmp;
+  ssize_t nread;
+
+  (void)sockindex; /* unused */
+
+  nread = RTMP_Read(r, buf, curlx_uztosi(len));
+  if(nread < 0) {
+    if(r->m_read.status == RTMP_READ_COMPLETE ||
+        r->m_read.status == RTMP_READ_EOF) {
+      conn->data->req.size = conn->data->req.bytecount;
+      nread = 0;
+    }
+    else
+      *err = CURLE_RECV_ERROR;
+  }
+  return nread;
+}
+
+static ssize_t rtmp_send(struct connectdata *conn, int sockindex,
+                         const void *buf, size_t len, CURLcode *err)
+{
+  RTMP *r = conn->proto.rtmp;
+  ssize_t num;
+
+  (void)sockindex; /* unused */
+
+  num = RTMP_Write(r, (char *)buf, curlx_uztosi(len));
+  if(num < 0)
+    *err = CURLE_SEND_ERROR;
+
+  return num;
+}
+#endif  /* USE_LIBRTMP */