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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
74 lines
1.8 KiB
Markdown
74 lines
1.8 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_MAIL_AUTH
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Section: 3
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Source: libcurl
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See-also:
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- CURLOPT_MAIL_FROM (3)
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- CURLOPT_MAIL_RCPT (3)
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Protocol:
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- SMTP
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---
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# NAME
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CURLOPT_MAIL_AUTH - SMTP authentication address
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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_MAIL_AUTH, char *auth);
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~~~
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# DESCRIPTION
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Pass a pointer to a null-terminated string as parameter. This is used to
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specify the authentication address (identity) of a submitted message that is
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being relayed to another server.
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This optional parameter allows co-operating agents in a trusted environment to
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communicate the authentication of individual messages and should only be used
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by the application program, using libcurl, if the application is itself a mail
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server acting in such an environment. If the application is operating as such
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and the AUTH address is not known or is invalid, then an empty string should
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be used for this parameter.
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Unlike CURLOPT_MAIL_FROM(3) and CURLOPT_MAIL_RCPT(3), the address should not
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be specified within a pair of angled brackets (\<\>). However, if an empty
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string is used then a pair of brackets are sent by libcurl as required by RFC
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2554.
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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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# 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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CURLcode res;
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curl_easy_setopt(curl, CURLOPT_URL, "smtp://example.com/");
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curl_easy_setopt(curl, CURLOPT_MAIL_AUTH, "<secret@cave>");
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res = curl_easy_perform(curl);
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curl_easy_cleanup(curl);
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}
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}
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~~~
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# AVAILABILITY
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Added in 7.25.0
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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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