static int http_connect(URLContext *h, const char *path, const char *hoststr, const char *auth, int *new_location) { HTTPContext *s = h->priv_data; int post, err; char line[1024]; char headers[1024] = ""; char *authstr = NULL; int64_t off = s->off; int len = 0; /* send http header */ post = h->flags & URL_WRONLY; authstr = ff_http_auth_create_response(&s->auth_state, auth, path, post ? "POST" : "GET"); /* set default headers if needed */ if (!has_header(s->headers, "\r\nUser-Agent: ")) len += av_strlcatf(headers + len, sizeof(headers) - len, "User-Agent: %s\r\n", LIBAVFORMAT_IDENT); if (!has_header(s->headers, "\r\nAccept: ")) len += av_strlcpy(headers + len, "Accept: */*\r\n", sizeof(headers) - len); if (!has_header(s->headers, "\r\nRange: ")) len += av_strlcatf(headers + len, sizeof(headers) - len, "Range: bytes=%"PRId64"-\r\n", s->off); if (!has_header(s->headers, "\r\nConnection: ")) len += av_strlcpy(headers + len, "Connection: close\r\n", sizeof(headers)-len); if (!has_header(s->headers, "\r\nHost: ")) len += av_strlcatf(headers + len, sizeof(headers) - len, "Host: %s\r\n", hoststr); /* now add in custom headers */ av_strlcpy(headers+len, s->headers, sizeof(headers)-len); snprintf(s->buffer, sizeof(s->buffer), "%s %s HTTP/1.1\r\n" "%s" "%s" "%s" "\r\n", post ? "POST" : "GET", path, post && s->is_chunked ? "Transfer-Encoding: chunked\r\n" : "", headers, authstr ? authstr : ""); av_freep(&authstr); if (http_write(h, s->buffer, strlen(s->buffer)) < 0) return AVERROR(EIO); /* init input buffer */ s->buf_ptr = s->buffer; s->buf_end = s->buffer; s->line_count = 0; s->off = 0; s->filesize = -1; if (post) { /* always use chunked encoding for upload data */ s->chunksize = 0; /* Pretend that it did work. We didn't read any header yet, since * we've still to send the POST data, but the code calling this * function will check http_code after we return. */ s->http_code = 200; return 0; } /* wait for header */ for(;;) { if (http_get_line(s, line, sizeof(line)) < 0) return AVERROR(EIO); dprintf(NULL, "header='%s'\n", line); err = process_line(h, line, s->line_count, new_location); if (err < 0) return err; if (err == 0) break; s->line_count++; } return (off == s->off) ? 0 : -1; }