e3fe020089
Remove the PROTOCOLS section from the source files completely and instead generate them based on the header data in the curldown files. It also generates TLS backend information for options marked for TLS as protocol. Closes #13175
89 lines
2.4 KiB
Markdown
89 lines
2.4 KiB
Markdown
---
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c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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SPDX-License-Identifier: curl
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Title: CURLOPT_NOPROXY
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Section: 3
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Source: libcurl
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Protocol:
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- All
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See-also:
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- CURLOPT_PROXY (3)
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- CURLOPT_PROXYAUTH (3)
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- CURLOPT_PROXYTYPE (3)
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---
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# NAME
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CURLOPT_NOPROXY - disable proxy use for specific hosts
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# SYNOPSIS
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~~~c
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#include <curl/curl.h>
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CURLcode curl_easy_setopt(CURL *handle, CURLOPT_NOPROXY, char *noproxy);
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~~~
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# DESCRIPTION
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Pass a pointer to a null-terminated string. The string consists of a comma
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separated list of hostnames that do not require a proxy to get reached, even
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if one is specified. The only wildcard available is a single * character,
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which matches all hosts, and effectively disables the proxy. Each name in this
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list is matched as either a domain which contains the hostname, or the
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hostname itself. For example, "ample.com" would match ample.com, ample.com:80,
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and www.ample.com, but not www.example.com or ample.com.org.
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Setting the *noproxy* string to "" (an empty string) explicitly enables the
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proxy for all hostnames, even if there is an environment variable set for it.
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Enter IPv6 numerical addresses in the list of hostnames without enclosing
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brackets:
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"example.com,::1,localhost"
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Since 7.86.0, IP addresses specified to this option can be provided using CIDR
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notation: an appended slash and number specifies the number of "network bits"
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out of the address to use in the comparison. For example "192.168.0.0/16"
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would match all addresses starting with "192.168".
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The application does not have to keep the string around after setting this
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option.
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# Environment variables
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If there is an environment variable called **no_proxy** (or **NO_PROXY**),
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it is used if the CURLOPT_NOPROXY(3) option is not set. It works exactly
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the same way.
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# DEFAULT
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NULL
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# EXAMPLE
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~~~c
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int main(void)
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{
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CURL *curl = curl_easy_init();
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if(curl) {
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/* accept various URLs */
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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
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/* use this proxy */
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curl_easy_setopt(curl, CURLOPT_PROXY, "http://proxy:80");
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/* ... but make sure this host name is not proxied */
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curl_easy_setopt(curl, CURLOPT_NOPROXY, "www.example.com");
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curl_easy_perform(curl);
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}
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}
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~~~
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# AVAILABILITY
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Added in 7.19.4
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# RETURN VALUE
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Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, or
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CURLE_OUT_OF_MEMORY if there was insufficient heap space.
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