Mystifying HTTP Response

[sfhacker]

Ciao.
I'm new to this project and I'm keen to adopt it.

I have been trying to parse some HTTP response from an external web service and I always get -1.

Complete and intact HTTP Response

HTTP/1.1 200 OK
Cache-Control: no-cache
Pragma: no-cache,no-cache
Content-Length: 1732
Content-Type: text/html
Expires: Thu, 12 Sep 2019 10:07:06 GMT
X-Powered-By: ASP.NET
Date: Thu, 12 Sep 2019 10:08:06 GMT
Set-Cookie: BIGipServerPool_SID_HTTP=!/l5OSz5Q2+lit5ui4p74SMEs3Svp+Nu1zwy7t2ZkQLTILXOoD27803XkdHn2hNIFvnp9qBuid9+lfA8=; expires=Thu, 12-Sep-2019 20:08:44 GMT; path=/; Httponly; Secure
Set-Cookie: f5_cspm=1234;

<title>SID</title><script language='javascript' type='text/javascript'>function inicio() { parent.Modal_Cerrar(); } </script><script id="f5_cspm">(function(){var f5_cspm={f5_p:'HMKADNMFJNNCCKNDGGHGJEGIFLCGEJFLJGDKBLEIFHDFNOJNDJIEEBGFMPPJHNBOODMBAMDNAAMDCFGHGJGAOLHCAAJOJPJMFKJLCOBLMEPJCIIKGJLKPGBOGBHOPJCO',setCharAt:function(str,index,chr){if(index>str.length-1)return str;return str.substr(0,index)+chr+str.substr(index+1);},get_byte:function(str,i){var s=(i/16)|0;i=(i&15);s=s*32;return((str.charCodeAt(i+16+s)-65)<<4)|(str.charCodeAt(i+s)-65);},set_byte:function(str,i,b){var s=(i/16)|0;i=(i&15);s=s*32;str=f5_cspm.setCharAt(str,(i+16+s),String.fromCharCode((b>>4)+65));str=f5_cspm.setCharAt(str,(i+s),String.fromCharCode((b&15)+65));return str;},set_latency:function(str,latency){latency=latency&0xffff;str=f5_cspm.set_byte(str,40,(latency>>8));str=f5_cspm.set_byte(str,41,(latency&0xff));str=f5_cspm.set_byte(str,35,2);return str;},wait_perf_data:function(){try{var wp=window.performance.timing;if(wp.loadEventEnd>0){var res=wp.loadEventEnd-wp.navigationStart;if(res<60001){var cookie_val=f5_cspm.set_latency(f5_cspm.f5_p,res);window.document.cookie='f5avr1505004186aaaaaaaaaaaaaaaa='+encodeURIComponent(cookie_val)+';path=/';} return;}} catch(err){return;} setTimeout(f5_cspm.wait_perf_data,100);return;},go:function(){var chunk=window.document.cookie.split(/\s*;\s*/);for(var i=0;i

Code snippet

prevbuflen = 0;
	status = 0;
	num_headers = 0;
    pret = phr_parse_response(captchaBuffer, ret, &minor_version, &status, &path, &path_len, headers, &num_headers, prevbuflen);
    if (pret < 0) {
		fprintf(stderr, "\tERROR parsing response header [%d]\n", pret);

        // return (EXIT_FAILURE);
	}

I always get -1 from phr_parse_response.
I would appreciate any help/hint/pointer/ etc. I know nothing about the code base.

Thanks in advance.