CURLOPT_NOPROXY.3 3.3 KB

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  23. .TH CURLOPT_NOPROXY 3 "August 24, 2018" "libcurl 7.61.1" "curl_easy_setopt options"
  24. .SH NAME
  25. CURLOPT_NOPROXY \- disable proxy use for specific hosts
  26. .SH SYNOPSIS
  27. #include <curl/curl.h>
  28. CURLcode curl_easy_setopt(CURL *handle, CURLOPT_NOPROXY, char *noproxy);
  29. .SH DESCRIPTION
  30. Pass a pointer to a zero terminated string. The string consists of a comma
  31. separated list of host names that do not require a proxy to get reached, even
  32. if one is specified. The only wildcard available is a single * character,
  33. which matches all hosts, and effectively disables the proxy. Each name in this
  34. list is matched as either a domain which contains the hostname, or the
  35. hostname itself. For example, example.com would match example.com,
  36. example.com:80, and www.example.com, but not www.notanexample.com or
  37. example.com.othertld.
  38. If the name in the noproxy list has a leading period, it is a domain match
  39. against the provided host name. This way ".example.com" will switch off proxy
  40. use for both "www.example.com" as well as for "foo.example.com".
  41. Setting the noproxy string to "" (an empty string) will explicitly enable the
  42. proxy for all host names, even if there is an environment variable set for it.
  43. Enter IPv6 numerical addresses in the list of host names without enclosing
  44. brackets:
  45. "example.com,::1,localhost"
  46. The application does not have to keep the string around after setting this
  47. option.
  48. .SH "Environment variables"
  49. If there's an environment variable called \fBno_proxy\fP (or \fBNO_PROXY\fP),
  50. it will be used if the \fICURLOPT_NOPROXY(3)\fP option is not set. It works
  51. exactly the same way.
  52. .SH DEFAULT
  53. NULL
  54. .SH PROTOCOLS
  55. Most
  56. .SH EXAMPLE
  57. .nf
  58. CURL *curl = curl_easy_init();
  59. if(curl) {
  60. /* accept various URLs */
  61. curl_easy_setopt(curl, CURLOPT_URL, input);
  62. /* use this proxy */
  63. curl_easy_setopt(curl, CURLOPT_PROXY, "http://proxy:80");
  64. /* ... but make sure this host name is not proxied */
  65. curl_easy_setopt(curl, CURLOPT_NOPROXY, "www.example.com");
  66. curl_easy_perform(curl);
  67. }
  68. .fi
  69. .SH AVAILABILITY
  70. Added in 7.19.4
  71. .SH RETURN VALUE
  72. Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, or
  73. CURLE_OUT_OF_MEMORY if there was insufficient heap space.
  74. .SH "SEE ALSO"
  75. .BR CURLOPT_PROXY "(3), " CURLOPT_PROXYAUTH "(3), "