CURLINFO_RTSP_CSEQ_RECV(3) Library Functions Manual NAME CURLINFO_RTSP_CSEQ_RECV - last received RTSP CSeq SYNOPSIS #include CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_RTSP_CSEQ_RECV, long *cseq); DESCRIPTION Pass a pointer to a long to receive the most recently received CSeq from the server. If your application encounters a CURLE_RTSP_CSEQ_ERROR then you may wish to troubleshoot and/or fix the CSeq mismatch by peeking at this value. PROTOCOLS This functionality affects rtsp only EXAMPLE int main(void) { CURL *curl = curl_easy_init(); if(curl) { CURLcode result; curl_easy_setopt(curl, CURLOPT_URL, "rtsp://rtsp.example.com"); result = curl_easy_perform(curl); if(result == CURLE_OK) { long cseq; curl_easy_getinfo(curl, CURLINFO_RTSP_CSEQ_RECV, &cseq); } curl_easy_cleanup(curl); } } AVAILABILITY Added in curl 7.20.0 RETURN VALUE curl_easy_getinfo(3) returns a CURLcode indicating success or error. CURLE_OK (0) means everything was OK, non-zero means an error occurred, see libcurl-errors(3). SEE ALSO CURLINFO_RTSP_SERVER_CSEQ(3), curl_easy_getinfo(3), curl_easy_setopt(3) libcurl 2026-09-02 CURLINFO_RTSP_CSEQ_RECV(3)