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-rw-r--r--lib/rtsp.c201
1 files changed, 128 insertions, 73 deletions
diff --git a/lib/rtsp.c b/lib/rtsp.c
index 1254c738..e33069a9 100644
--- a/lib/rtsp.c
+++ b/lib/rtsp.c
@@ -5,7 +5,7 @@
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
- * Copyright (C) 1998 - 2010, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
@@ -20,7 +20,7 @@
*
***************************************************************************/
-#include "setup.h"
+#include "curl_setup.h"
#ifndef CURL_DISABLE_RTSP
@@ -28,19 +28,18 @@
#include <curl/curl.h>
#include "transfer.h"
#include "sendf.h"
-#include "easyif.h" /* for Curl_convert_... prototypes */
#include "multiif.h"
#include "http.h"
#include "url.h"
#include "progress.h"
#include "rtsp.h"
#include "rawstr.h"
-#include "curl_memory.h"
-
-#define _MPRINTF_REPLACE /* use our functions only */
-#include <curl/mprintf.h>
+#include "select.h"
+#include "connect.h"
+#include "curl_printf.h"
-/* The last #include file should be: */
+/* The last #include files should be: */
+#include "curl_memory.h"
#include "memdebug.h"
/*
@@ -58,10 +57,31 @@
#define RTP_PKT_LENGTH(p) ((((int)((unsigned char)((p)[2]))) << 8) | \
((int)((unsigned char)((p)[3]))))
+/* protocol-specific functions set up to be called by the main engine */
+static CURLcode rtsp_do(struct connectdata *conn, bool *done);
+static CURLcode rtsp_done(struct connectdata *conn, CURLcode, bool premature);
+static CURLcode rtsp_connect(struct connectdata *conn, bool *done);
+static CURLcode rtsp_disconnect(struct connectdata *conn, bool dead);
+
static int rtsp_getsock_do(struct connectdata *conn,
curl_socket_t *socks,
int numsocks);
+/*
+ * Parse and write out any available RTP data.
+ *
+ * nread: amount of data left after k->str. will be modified if RTP
+ * data is parsed and k->str is moved up
+ * readmore: whether or not the RTP parser needs more data right away
+ */
+static CURLcode rtsp_rtp_readwrite(struct SessionHandle *data,
+ struct connectdata *conn,
+ ssize_t *nread,
+ bool *readmore);
+
+static CURLcode rtsp_setup_connection(struct connectdata *conn);
+
+
/* this returns the socket to wait for in the DO and DOING state for the multi
interface and then we're always _sending_ a request and thus we wait for
the single socket to become writable only */
@@ -84,22 +104,71 @@ CURLcode rtp_client_write(struct connectdata *conn, char *ptr, size_t len);
*/
const struct Curl_handler Curl_handler_rtsp = {
"RTSP", /* scheme */
- ZERO_NULL, /* setup_connection */
- Curl_rtsp, /* do_it */
- Curl_rtsp_done, /* done */
+ rtsp_setup_connection, /* setup_connection */
+ rtsp_do, /* do_it */
+ rtsp_done, /* done */
ZERO_NULL, /* do_more */
- Curl_rtsp_connect, /* connect_it */
+ rtsp_connect, /* connect_it */
ZERO_NULL, /* connecting */
ZERO_NULL, /* doing */
ZERO_NULL, /* proto_getsock */
rtsp_getsock_do, /* doing_getsock */
+ ZERO_NULL, /* domore_getsock */
ZERO_NULL, /* perform_getsock */
- Curl_rtsp_disconnect, /* disconnect */
+ rtsp_disconnect, /* disconnect */
+ rtsp_rtp_readwrite, /* readwrite */
PORT_RTSP, /* defport */
- PROT_RTSP, /* protocol */
+ CURLPROTO_RTSP, /* protocol */
+ PROTOPT_NONE /* flags */
};
-CURLcode Curl_rtsp_connect(struct connectdata *conn, bool *done)
+
+static CURLcode rtsp_setup_connection(struct connectdata *conn)
+{
+ struct RTSP *rtsp;
+
+ conn->data->req.protop = rtsp = calloc(1, sizeof(struct RTSP));
+ if(!rtsp)
+ return CURLE_OUT_OF_MEMORY;
+
+ return CURLE_OK;
+}
+
+
+/*
+ * The server may send us RTP data at any point, and RTSPREQ_RECEIVE does not
+ * want to block the application forever while receiving a stream. Therefore,
+ * we cannot assume that an RTSP socket is dead just because it is readable.
+ *
+ * Instead, if it is readable, run Curl_getconnectinfo() to peek at the socket
+ * and distinguish between closed and data.
+ */
+bool Curl_rtsp_connisdead(struct connectdata *check)
+{
+ int sval;
+ bool ret_val = TRUE;
+
+ sval = Curl_socket_ready(check->sock[FIRSTSOCKET], CURL_SOCKET_BAD, 0);
+ if(sval == 0) {
+ /* timeout */
+ ret_val = FALSE;
+ }
+ else if(sval & CURL_CSELECT_ERR) {
+ /* socket is in an error state */
+ ret_val = TRUE;
+ }
+ else if((sval & CURL_CSELECT_IN) && check->data) {
+ /* readable with no error. could be closed or could be alive but we can
+ only check if we have a proper SessionHandle for the connection */
+ curl_socket_t connectinfo = Curl_getconnectinfo(check->data, &check);
+ if(connectinfo != CURL_SOCKET_BAD)
+ ret_val = FALSE;
+ }
+
+ return ret_val;
+}
+
+static CURLcode rtsp_connect(struct connectdata *conn, bool *done)
{
CURLcode httpStatus;
struct SessionHandle *data = conn->data;
@@ -117,17 +186,19 @@ CURLcode Curl_rtsp_connect(struct connectdata *conn, bool *done)
return httpStatus;
}
-CURLcode Curl_rtsp_disconnect(struct connectdata *conn) {
+static CURLcode rtsp_disconnect(struct connectdata *conn, bool dead)
+{
+ (void) dead;
Curl_safefree(conn->proto.rtspc.rtp_buf);
return CURLE_OK;
}
-CURLcode Curl_rtsp_done(struct connectdata *conn,
- CURLcode status, bool premature)
+static CURLcode rtsp_done(struct connectdata *conn,
+ CURLcode status, bool premature)
{
struct SessionHandle *data = conn->data;
- struct RTSP *rtsp = data->state.proto.rtsp;
+ struct RTSP *rtsp = data->req.protop;
CURLcode httpStatus;
long CSeq_sent;
long CSeq_recv;
@@ -143,7 +214,8 @@ CURLcode Curl_rtsp_done(struct connectdata *conn,
CSeq_sent = rtsp->CSeq_sent;
CSeq_recv = rtsp->CSeq_recv;
if((data->set.rtspreq != RTSPREQ_RECEIVE) && (CSeq_sent != CSeq_recv)) {
- failf(data, "The CSeq of this request %ld did not match the response %ld",
+ failf(data,
+ "The CSeq of this request %ld did not match the response %ld",
CSeq_sent, CSeq_recv);
return CURLE_RTSP_CSEQ_ERROR;
}
@@ -157,12 +229,12 @@ CURLcode Curl_rtsp_done(struct connectdata *conn,
return httpStatus;
}
-CURLcode Curl_rtsp(struct connectdata *conn, bool *done)
+static CURLcode rtsp_do(struct connectdata *conn, bool *done)
{
struct SessionHandle *data = conn->data;
CURLcode result=CURLE_OK;
Curl_RtspReq rtspreq = data->set.rtspreq;
- struct RTSP *rtsp;
+ struct RTSP *rtsp = data->req.protop;
struct HTTP *http;
Curl_send_buffer *req_buffer;
curl_off_t postsize = 0; /* for ANNOUNCE and SET_PARAMETER */
@@ -180,20 +252,6 @@ CURLcode Curl_rtsp(struct connectdata *conn, bool *done)
*done = TRUE;
- Curl_reset_reqproto(conn);
-
- if(!data->state.proto.rtsp) {
- /* Only allocate this struct if we don't already have it! */
-
- rtsp = calloc(1, sizeof(struct RTSP));
- if(!rtsp)
- return CURLE_OUT_OF_MEMORY;
- data->state.proto.rtsp = rtsp;
- }
- else {
- rtsp = data->state.proto.rtsp;
- }
-
http = &(rtsp->http_wrapper);
/* Assert that no one has changed the RTSP struct in an evil way */
DEBUGASSERT((void *)http == (void *)rtsp);
@@ -205,11 +263,10 @@ CURLcode Curl_rtsp(struct connectdata *conn, bool *done)
* Since all RTSP requests are included here, there is no need to
* support custom requests like HTTP.
**/
- DEBUGASSERT((rtspreq > RTSPREQ_NONE && rtspreq < RTSPREQ_LAST));
data->set.opt_no_body = TRUE; /* most requests don't contain a body */
switch(rtspreq) {
- case RTSPREQ_NONE:
- failf(data, "Got invalid RTSP request: RTSPREQ_NONE");
+ default:
+ failf(data, "Got invalid RTSP request");
return CURLE_BAD_FUNCTION_ARGUMENT;
case RTSPREQ_OPTIONS:
p_request = "OPTIONS";
@@ -236,6 +293,7 @@ CURLcode Curl_rtsp(struct connectdata *conn, bool *done)
case RTSPREQ_GET_PARAMETER:
/* GET_PARAMETER's no_body status is determined later */
p_request = "GET_PARAMETER";
+ data->set.opt_no_body = FALSE;
break;
case RTSPREQ_SET_PARAMETER:
p_request = "SET_PARAMETER";
@@ -264,7 +322,7 @@ CURLcode Curl_rtsp(struct connectdata *conn, bool *done)
if(!p_session_id &&
(rtspreq & ~(RTSPREQ_OPTIONS | RTSPREQ_DESCRIBE | RTSPREQ_SETUP))) {
failf(data, "Refusing to issue an RTSP request [%s] without a session ID.",
- p_request ? p_request : "");
+ p_request);
return CURLE_BAD_FUNCTION_ARGUMENT;
}
@@ -280,7 +338,7 @@ CURLcode Curl_rtsp(struct connectdata *conn, bool *done)
}
/* Transport Header for SETUP requests */
- p_transport = Curl_checkheaders(data, "Transport:");
+ p_transport = Curl_checkheaders(conn, "Transport:");
if(rtspreq == RTSPREQ_SETUP && !p_transport) {
/* New Transport: setting? */
if(data->set.str[STRING_RTSP_TRANSPORT]) {
@@ -304,11 +362,11 @@ CURLcode Curl_rtsp(struct connectdata *conn, bool *done)
/* Accept Headers for DESCRIBE requests */
if(rtspreq == RTSPREQ_DESCRIBE) {
/* Accept Header */
- p_accept = Curl_checkheaders(data, "Accept:")?
+ p_accept = Curl_checkheaders(conn, "Accept:")?
NULL:"Accept: application/sdp\r\n";
/* Accept-Encoding header */
- if(!Curl_checkheaders(data, "Accept-Encoding:") &&
+ if(!Curl_checkheaders(conn, "Accept-Encoding:") &&
data->set.str[STRING_ENCODING]) {
Curl_safefree(conn->allocptr.accept_encoding);
conn->allocptr.accept_encoding =
@@ -325,18 +383,18 @@ CURLcode Curl_rtsp(struct connectdata *conn, bool *done)
it might have been used in the proxy connect, but if we have got a header
with the user-agent string specified, we erase the previously made string
here. */
- if(Curl_checkheaders(data, "User-Agent:") && conn->allocptr.uagent) {
+ if(Curl_checkheaders(conn, "User-Agent:") && conn->allocptr.uagent) {
Curl_safefree(conn->allocptr.uagent);
conn->allocptr.uagent = NULL;
}
- else if(!Curl_checkheaders(data, "User-Agent:") &&
+ else if(!Curl_checkheaders(conn, "User-Agent:") &&
data->set.str[STRING_USERAGENT]) {
p_uagent = conn->allocptr.uagent;
}
/* Referrer */
Curl_safefree(conn->allocptr.ref);
- if(data->change.referer && !Curl_checkheaders(data, "Referer:"))
+ if(data->change.referer && !Curl_checkheaders(conn, "Referer:"))
conn->allocptr.ref = aprintf("Referer: %s\r\n", data->change.referer);
else
conn->allocptr.ref = NULL;
@@ -353,7 +411,7 @@ CURLcode Curl_rtsp(struct connectdata *conn, bool *done)
(rtspreq & (RTSPREQ_PLAY | RTSPREQ_PAUSE | RTSPREQ_RECORD))) {
/* Check to see if there is a range set in the custom headers */
- if(!Curl_checkheaders(data, "Range:") && data->state.range) {
+ if(!Curl_checkheaders(conn, "Range:") && data->state.range) {
Curl_safefree(conn->allocptr.rangeline);
conn->allocptr.rangeline = aprintf("Range: %s\r\n", data->state.range);
p_range = conn->allocptr.rangeline;
@@ -363,11 +421,11 @@ CURLcode Curl_rtsp(struct connectdata *conn, bool *done)
/*
* Sanity check the custom headers
*/
- if(Curl_checkheaders(data, "CSeq:")) {
+ if(Curl_checkheaders(conn, "CSeq:")) {
failf(data, "CSeq cannot be set as a custom header.");
return CURLE_RTSP_CSEQ_ERROR;
}
- if(Curl_checkheaders(data, "Session:")) {
+ if(Curl_checkheaders(conn, "Session:")) {
failf(data, "Session ID cannot be set as a custom header.");
return CURLE_BAD_FUNCTION_ARGUMENT;
}
@@ -423,7 +481,7 @@ CURLcode Curl_rtsp(struct connectdata *conn, bool *done)
return result;
}
- result = Curl_add_custom_headers(conn, req_buffer);
+ result = Curl_add_custom_headers(conn, FALSE, req_buffer);
if(result)
return result;
@@ -432,13 +490,13 @@ CURLcode Curl_rtsp(struct connectdata *conn, bool *done)
rtspreq == RTSPREQ_GET_PARAMETER) {
if(data->set.upload) {
- putsize = data->set.infilesize;
+ putsize = data->state.infilesize;
data->set.httpreq = HTTPREQ_PUT;
}
else {
- postsize = (data->set.postfieldsize != -1)?
- data->set.postfieldsize:
+ postsize = (data->state.infilesize != -1)?
+ data->state.infilesize:
(data->set.postfields? (curl_off_t)strlen(data->set.postfields):0);
data->set.httpreq = HTTPREQ_POST;
}
@@ -446,9 +504,9 @@ CURLcode Curl_rtsp(struct connectdata *conn, bool *done)
if(putsize > 0 || postsize > 0) {
/* As stated in the http comments, it is probably not wise to
* actually set a custom Content-Length in the headers */
- if(!Curl_checkheaders(data, "Content-Length:")) {
+ if(!Curl_checkheaders(conn, "Content-Length:")) {
result = Curl_add_bufferf(req_buffer,
- "Content-Length: %" FORMAT_OFF_T"\r\n",
+ "Content-Length: %" CURL_FORMAT_CURL_OFF_T"\r\n",
(data->set.upload ? putsize : postsize));
if(result)
return result;
@@ -456,7 +514,7 @@ CURLcode Curl_rtsp(struct connectdata *conn, bool *done)
if(rtspreq == RTSPREQ_SET_PARAMETER ||
rtspreq == RTSPREQ_GET_PARAMETER) {
- if(!Curl_checkheaders(data, "Content-Type:")) {
+ if(!Curl_checkheaders(conn, "Content-Type:")) {
result = Curl_add_bufferf(req_buffer,
"Content-Type: text/parameters\r\n");
if(result)
@@ -465,7 +523,7 @@ CURLcode Curl_rtsp(struct connectdata *conn, bool *done)
}
if(rtspreq == RTSPREQ_ANNOUNCE) {
- if(!Curl_checkheaders(data, "Content-Type:")) {
+ if(!Curl_checkheaders(conn, "Content-Type:")) {
result = Curl_add_bufferf(req_buffer,
"Content-Type: application/sdp\r\n");
if(result)
@@ -473,8 +531,9 @@ CURLcode Curl_rtsp(struct connectdata *conn, bool *done)
}
}
- data->state.expect100header = FALSE; /* RTSP posts are simple/small */
- } else if(rtspreq == RTSPREQ_GET_PARAMETER) {
+ data->state.expect100header = FALSE; /* RTSP posts are simple/small */
+ }
+ else if(rtspreq == RTSPREQ_GET_PARAMETER) {
/* Check for an empty GET_PARAMETER (heartbeat) request */
data->set.httpreq = HTTPREQ_HEAD;
data->set.opt_no_body = TRUE;
@@ -521,10 +580,11 @@ CURLcode Curl_rtsp(struct connectdata *conn, bool *done)
return result;
}
-CURLcode Curl_rtsp_rtp_readwrite(struct SessionHandle *data,
- struct connectdata *conn,
- ssize_t *nread,
- bool *readmore) {
+
+static CURLcode rtsp_rtp_readwrite(struct SessionHandle *data,
+ struct connectdata *conn,
+ ssize_t *nread,
+ bool *readmore) {
struct SingleRequest *k = &data->req;
struct rtsp_conn *rtspc = &(conn->proto.rtspc);
@@ -606,7 +666,7 @@ CURLcode Curl_rtsp_rtp_readwrite(struct SessionHandle *data,
}
if(rtp_dataleft != 0 && rtp[0] == '$') {
- DEBUGF(infof(data, "RTP Rewinding %zu %s\n", rtp_dataleft,
+ DEBUGF(infof(data, "RTP Rewinding %zd %s\n", rtp_dataleft,
*readmore ? "(READMORE)" : ""));
/* Store the incomplete RTP packet for a "rewind" */
@@ -685,15 +745,10 @@ CURLcode Curl_rtsp_parseheader(struct connectdata *conn,
if(checkprefix("CSeq:", header)) {
/* Store the received CSeq. Match is verified in rtsp_done */
- int nc;
- char *temp = strdup(header);
- if(!temp)
- return CURLE_OUT_OF_MEMORY;
- Curl_strntoupper(temp, temp, sizeof(temp));
- nc = sscanf(temp, "CSEQ: %ld", &CSeq);
- free(temp);
+ int nc = sscanf(&header[4], ": %ld", &CSeq);
if(nc == 1) {
- data->state.proto.rtsp->CSeq_recv = CSeq; /* mark the request */
+ struct RTSP *rtsp = data->req.protop;
+ rtsp->CSeq_recv = CSeq; /* mark the request */
data->state.rtsp_CSeq_recv = CSeq; /* update the handle */
}
else {
@@ -705,7 +760,7 @@ CURLcode Curl_rtsp_parseheader(struct connectdata *conn,
char *start;
/* Find the first non-space letter */
- start = header + 9;
+ start = header + 8;
while(*start && ISSPACE(*start))
start++;
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-09 20:59:46 +0000