CURLINFO_HEADER_SIZE(3)

1CURLINFO_HEADER_SIZE(3)             libcurl            CURLINFO_HEADER_SIZE(3)
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NAME

6       CURLINFO_HEADER_SIZE - get size of retrieved headers
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SYNOPSIS

9       #include <curl/curl.h>
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11       CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_HEADER_SIZE, long *sizep);
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DESCRIPTION

14       Pass  a  pointer to a long to receive the total size of all the headers
15       received. Measured in number of bytes.
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17       The total includes the size of any received headers suppressed by  CUR‐
18       LOPT_SUPPRESS_CONNECT_HEADERS(3).
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PROTOCOLS

21       All
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EXAMPLE

24       CURL *curl = curl_easy_init();
25       if(curl) {
26         CURLcode res;
27         curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
28         res = curl_easy_perform(curl);
29         if(res == CURLE_OK) {
30           long size;
31           res = curl_easy_getinfo(curl, CURLINFO_HEADER_SIZE, &size);
32           if(!res)
33             printf("Header size: %ld bytes\n", size);
34         }
35         curl_easy_cleanup(curl);
36       }
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AVAILABILITY

39       Added in 7.4.1
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RETURN VALUE

42       Returns  CURLE_OK  if the option is supported, and CURLE_UNKNOWN_OPTION
43       if not.
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