CURLOPT_PROXY_SSL_OPTIONS.3 3.1 KB

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  23. .TH CURLOPT_PROXY_SSL_OPTIONS 3 "May 31, 2017" "libcurl 7.61.1" "curl_easy_setopt options"
  24. .SH NAME
  25. CURLOPT_PROXY_SSL_OPTIONS \- set proxy SSL behavior options
  26. .SH SYNOPSIS
  27. #include <curl/curl.h>
  28. CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXY_SSL_OPTIONS, long bitmask);
  29. .SH DESCRIPTION
  30. Pass a long with a bitmask to tell libcurl about specific SSL behaviors.
  31. \fICURLSSLOPT_ALLOW_BEAST\fP tells libcurl to not attempt to use any
  32. workarounds for a security flaw in the SSL3 and TLS1.0 protocols. If this
  33. option isn't used or this bit is set to 0, the SSL layer libcurl uses may use
  34. a work-around for this flaw although it might cause interoperability problems
  35. with some (older) SSL implementations. WARNING: avoiding this work-around
  36. lessens the security, and by setting this option to 1 you ask for exactly
  37. that. This option is only supported for DarwinSSL, NSS and OpenSSL.
  38. \fICURLSSLOPT_NO_REVOKE\fP tells libcurl to disable certificate revocation
  39. checks for those SSL backends where such behavior is present. \fBCurrently
  40. this option is only supported for WinSSL (the native Windows SSL library),
  41. with an exception in the case of Windows' Untrusted Publishers blacklist which
  42. it seems can't be bypassed.\fP This option may have broader support to
  43. accommodate other SSL backends in the future.
  44. https://curl.haxx.se/docs/ssl-compared.html
  45. .SH DEFAULT
  46. 0
  47. .SH PROTOCOLS
  48. All
  49. .SH AVAILABLE
  50. Added in 7.52.0
  51. .SH EXAMPLE
  52. .nf
  53. CURL *curl = curl_easy_init();
  54. if(curl) {
  55. curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
  56. curl_easy_setopt(curl, CURLOPT_PROXY, "https://proxy");
  57. /* weaken TLS only for use with silly proxies */
  58. curl_easy_setopt(curl, CURLOPT_PROXY_SSL_OPTIONS, CURLSSLOPT_ALLOW_BEAST |
  59. CURLSSLOPT_NO_REVOKE);
  60. ret = curl_easy_perform(curl);
  61. curl_easy_cleanup(curl);
  62. }
  63. .fi
  64. .SH RETURN VALUE
  65. Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
  66. .SH "SEE ALSO"
  67. .BR CURLOPT_PROXY_SSLVERSION "(3), " CURLOPT_PROXY_SSL_CIPHER_LIST "(3), "
  68. .BR CURLOPT_SSLVERSION "(3), " CURLOPT_SSL_CIPHER_LIST "(3), "