Function ff_tls_open_underlying

libavformat/tls.c:34–111

#include "libavutil/parseutils.h"

int ff_tls_open_underlying(TLSShared *c, URLContext *parent, const char *uri, AVDictionary **options)
{
    int port;
    const char *p;
    char buf[200], opts[50] = "";
    struct addrinfo hints = { 0 }, *ai = NULL;
    const char *proxy_path;
    char *env_http_proxy, *env_no_proxy;
    int use_proxy;
    int ret;

    p = strchr(uri, '?');
    if (p) {
        ret = ff_parse_opts_from_query_string(c, p, 1);
        if (ret < 0)
            return ret;
    }

    if (c->listen && !c->is_dtls)
        snprintf(opts, sizeof(opts), "?listen=1");

    av_url_split(NULL, 0, NULL, 0, c->underlying_host, sizeof(c->underlying_host), &port, NULL, 0, uri);

    if (!p) {
        p = opts;
    } else {
        if (av_find_info_tag(opts, sizeof(opts), "listen", p))
            c->listen = 1;
    }

    ff_url_join(buf, sizeof(buf), c->is_dtls ? "udp" : "tcp", NULL, (c->is_dtls && c->listen) ? "" : c->underlying_host, port, "%s", p);

    hints.ai_flags = AI_NUMERICHOST;
    if (!getaddrinfo(c->underlying_host, NULL, &hints, &ai)) {
        c->numerichost = 1;
        freeaddrinfo(ai);
    }

    if (!c->host && !(c->host = av_strdup(c->underlying_host)))
        return AVERROR(ENOMEM);

    env_http_proxy = getenv_utf8("http_proxy");
    proxy_path = c->http_proxy ? c->http_proxy : env_http_proxy;

    env_no_proxy = getenv_utf8("no_proxy");
    use_proxy = !ff_http_match_no_proxy(env_no_proxy, c->underlying_host) &&
                proxy_path && av_strstart(proxy_path, "http://", NULL);
    freeenv_utf8(env_no_proxy);

    if (!c->is_dtls && use_proxy) {
        char proxy_host[200], proxy_auth[200], dest[200];
        int proxy_port;
        av_url_split(NULL, 0, proxy_auth, sizeof(proxy_auth),
                     proxy_host, sizeof(proxy_host), &proxy_port, NULL, 0,
                     proxy_path);
        ff_url_join(dest, sizeof(dest), NULL, NULL, c->underlying_host, port, NULL);
        ff_url_join(buf, sizeof(buf), "httpproxy", proxy_auth, proxy_host,
                    proxy_port, "/%s", dest);