CURLOPT_SSL_EC_CURVES.3 2.1 KB

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  23. .TH CURLOPT_SSL_EC_CURVES 3 "29 Aug 2020" "libcurl 7.73.0" "curl_easy_setopt options"
  24. .SH NAME
  25. CURLOPT_SSL_EC_CURVES \- key exchange curves
  26. .SH SYNOPSIS
  27. .nf
  28. #include <curl/curl.h>
  29. CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSL_EC_CURVES, char *alg_list);
  30. .fi
  31. .SH DESCRIPTION
  32. Pass a string as parameter with a colon delimited list of (EC) algorithms. This
  33. option defines the client's key exchange algorithms in the SSL handshake (if
  34. the SSL backend libcurl is built to use supports it).
  35. .SH DEFAULT
  36. "", embedded in SSL backend
  37. .SH PROTOCOLS
  38. HTTP
  39. .SH EXAMPLE
  40. .nf
  41. CURL *curl = curl_easy_init();
  42. if(curl) {
  43. curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
  44. curl_easy_setopt(curl, CURLOPT_SSL_EC_CURVES, "X25519:P-521");
  45. ret = curl_easy_perform(curl);
  46. curl_easy_cleanup(curl);
  47. }
  48. .fi
  49. .SH AVAILABILITY
  50. Added in 7.73.0. Supported by the OpenSSL backend.
  51. .SH RETURN VALUE
  52. Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
  53. .SH "SEE ALSO"
  54. .BR CURLOPT_SSL_OPTIONS "(3), " CURLOPT_SSL_CIPHER_LIST "(3), "
  55. .BR CURLOPT_TLS13_CIPHERS "(3), "