1CURLOPT_DEFAULT_PROTOCOL(3)curl_easy_setopt optionsCURLOPT_DEFAULT_PROTOCOL(3)
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6 CURLOPT_DEFAULT_PROTOCOL - default protocol to use if the URL is miss‐
7 ing a scheme name
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10 #include <curl/curl.h>
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12 CURLcode curl_easy_setopt(CURL *handle, CURLOPT_DEFAULT_PROTOCOL, char
13 *protocol);
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16 This option tells libcurl to use protocol if the URL is missing a
17 scheme name.
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19 Use one of these protocol (scheme) names:
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21 dict, file, ftp, ftps, gopher, http, https, imap, imaps, ldap, ldaps,
22 pop3, pop3s, rtsp, scp, sftp, smb, smbs, smtp, smtps, telnet, tftp
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24 An unknown or unsupported protocol causes error CURLE_UNSUPPORTED_PRO‐
25 TOCOL when libcurl parses a schemeless URL. Parsing happens when
26 curl_easy_perform(3) or curl_multi_perform(3) is called. The protocols
27 supported by libcurl will vary depending on how it was built. Use
28 curl_version_info(3) if you need a list of protocol names supported by
29 the build of libcurl that you are using.
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31 This option does not change the default proxy protocol (http).
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33 Without this option libcurl would make a guess based on the host, see
34 CURLOPT_URL(3) for details.
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36 The application does not have to keep the string around after setting
37 this option.
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40 NULL (make a guess based on the host)
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43 All
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46 curl = curl_easy_init();
47 if(curl) {
48 /* set a URL without a scheme */
49 curl_easy_setopt(curl, CURLOPT_URL, "example.com");
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51 /* set the default protocol (scheme) for schemeless URLs */
52 curl_easy_setopt(curl, CURLOPT_DEFAULT_PROTOCOL, "https");
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54 /* Perform the request */
55 curl_easy_perform(curl);
56 }
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59 Added in 7.45.0
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62 CURLE_OK if the option is supported.
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64 CURLE_OUT_OF_MEMORY if there was insufficient heap space.
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66 CURLE_UNKNOWN_OPTION if the option is not supported.
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69 CURLOPT_URL(3),
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73libcurl 7.79.1 November 04, 2020 CURLOPT_DEFAULT_PROTOCOL(3)