This patch is a bad idea. You should simply use the URL options.
Accessing fields inside the RTMP structure will make this code
version-dependent and cause incompatibilities when librtmp is updated.

Przemysław Iskra wrote:
> Added three new options for swf verification in rtmpe tramsmissions:
> - CURLOPT_RTMP_SWF_URL - pointer to a string
> - CURLOPT_RTMP_SWF_SIZE - long
> - CURLOPT_RTMP_SWF_HASH - pointer to binary data (32 bytes)
>
> Additionally CURLOPT_REFERER is now recognized as rtmp page url.
> ---
> include/curl/curl.h | 5 +++++
> lib/curl_rtmp.c | 22 ++++++++++++++++++++++
> lib/url.c | 31 +++++++++++++++++++++++++++++++
> lib/urldata.h | 3 +++
> 4 files changed, 61 insertions(+), 0 deletions(-)
>
> diff --git a/include/curl/curl.h b/include/curl/curl.h
> index b19828f..105aac0 100644
> --- a/include/curl/curl.h
> +++ b/include/curl/curl.h
> @@ -1435,6 +1435,11 @@ typedef enum {
> /* FNMATCH_FUNCTION user pointer */
> CINIT(FNMATCH_DATA, OBJECTPOINT, 202),
>
> + /* set swf verification for rtmpe */
> + CINIT(RTMP_SWF_URL, OBJECTPOINT, 203),
> + CINIT(RTMP_SWF_SIZE, LONG, 204),
> + CINIT(RTMP_SWF_HASH, OBJECTPOINT, 205),
> +
> CURLOPT_LASTENTRY /* the last unused */
> } CURLoption;
>
> diff --git a/lib/curl_rtmp.c b/lib/curl_rtmp.c
> index df30dc1..6acd851 100644
> --- a/lib/curl_rtmp.c
> +++ b/lib/curl_rtmp.c
> @@ -174,6 +174,28 @@ static CURLcode rtmp_setup(struct connectdata *conn)
> RTMP_Free(r);
> return CURLE_URL_MALFORMAT;
> }
> +
> + if ( conn->data->set.rtmp_swf_size> 0&&
> + conn->data->set.str[STRING_RTMP_SWF_HASH] != NULL )
> + {
> + memcpy(r->Link.SWFHash, conn->data->set.str[STRING_RTMP_SWF_HASH], sizeof(r->Link.SWFHash));
> + r->Link.SWFSize = conn->data->set.rtmp_swf_size;
> + }
> + else
> + r->Link.SWFSize = 0;
> +
> + if ( conn->data->set.str[STRING_RTMP_SWF_URL] != NULL )
> + {
> + r->Link.swfUrl.av_val = conn->data->set.str[STRING_RTMP_SWF_URL];
> + r->Link.swfUrl.av_len = strlen( conn->data->set.str[STRING_RTMP_SWF_URL] );
> + }
> +
> + if ( conn->data->change.referer != NULL )
> + {
> + r->Link.pageUrl.av_val = conn->data->change.referer;
> + r->Link.pageUrl.av_len = strlen( conn->data->change.referer );
> + }
> +
> conn->proto.generic = r;
> return CURLE_OK;
> }
> diff --git a/lib/url.c b/lib/url.c
> index 4ed330e..bd2cbd5 100644
> --- a/lib/url.c
> +++ b/lib/url.c
> @@ -2482,6 +2482,37 @@ CURLcode Curl_setopt(struct SessionHandle *data, CURLoption option,
> case CURLOPT_FNMATCH_DATA:
> data->set.fnmatch_data = va_arg(param, void *);
> break;
> +
> + case CURLOPT_RTMP_SWF_URL:
> + result = setstropt(&data->set.str[STRING_RTMP_SWF_URL],
> + va_arg(param, char *));
> + break;
> + case CURLOPT_RTMP_SWF_SIZE:
> + data->set.rtmp_swf_size = va_arg(param, long);
> + break;
> + case CURLOPT_RTMP_SWF_HASH:
> + argptr = va_arg(param, char *);
> +
> + if(!argptr)
> + result = setstropt(&data->set.str[STRING_RTMP_SWF_HASH], NULL);
> + else {
> + const size_t hash_size = 32;
> + char * p;
> +
> + (void) setstropt(&data->set.str[STRING_RTMP_SWF_HASH], NULL);
> +
> + p = malloc( hash_size );
> +
> + if(!p)
> + result = CURLE_OUT_OF_MEMORY;
> + else {
> + memcpy(p, argptr, hash_size);
> +
> + data->set.str[STRING_RTMP_SWF_HASH] = p;
> + }
> + }
> + break;
> +
> default:
> /* unknown tag and its companion, just ignore: */
> result = CURLE_FAILED_INIT; /* correct this */
> diff --git a/lib/urldata.h b/lib/urldata.h
> index 7763278..aaf94a6 100644
> --- a/lib/urldata.h
> +++ b/lib/urldata.h
> @@ -1245,6 +1245,8 @@ enum dupstring {
> STRING_SOCKS5_GSSAPI_SERVICE, /* GSSAPI service name */
> #endif
> STRING_MAIL_FROM,
> + STRING_RTMP_SWF_URL, /* uri string for swf verification in rtmpe */
> + STRING_RTMP_SWF_HASH, /* hash for swf verification in rtmpe */
>
> /* -- end of strings -- */
> STRING_LAST /* not used, just an end-of-list marker */
> @@ -1431,6 +1433,7 @@ struct UserDefined {
> curl_fnmatch_callback fnmatch; /* callback to decide which file corresponds
> to pattern (e.g. if WILDCARDMATCH is on) */
> void *fnmatch_data;
> + long rtmp_swf_size; /* size of the swf file to verify */
> };
>
> struct Names {

-- 
   -- Howard Chu
   CTO, Symas Corp.           http://www.symas.com
   Director, Highland Sun     http://highlandsun.com/hyc/
   Chief Architect, OpenLDAP  http://www.openldap.org/project/
-------------------------------------------------------------------
List admin: http://cool.haxx.se/list/listinfo/curl-library
Etiquette:  http://curl.haxx.se/mail/etiquette.html