curl/docs/libcurl/opts/CURLINFO_HTTPAUTH_AVAIL.3
max.mehl ad9bc5976d
copyright: make repository REUSE compliant
Add licensing and copyright information for all files in this repository. This
either happens in the file itself as a comment header or in the file
`.reuse/dep5`.

This commit also adds a Github workflow to check pull requests and adapts
copyright.pl to the changes.

Closes #8869
2022-06-13 09:13:00 +02:00

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.TH CURLINFO_HTTPAUTH_AVAIL 3 "12 Sep 2015" "libcurl 7.44.0" "curl_easy_getinfo options"
.SH NAME
CURLINFO_HTTPAUTH_AVAIL \- get available HTTP authentication methods
.SH SYNOPSIS
.nf
#include <curl/curl.h>
CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_HTTPAUTH_AVAIL, long *authp);
.fi
.SH DESCRIPTION
Pass a pointer to a long to receive a bitmask indicating the authentication
method(s) available according to the previous response. The meaning of the
bits is explained in the \fICURLOPT_HTTPAUTH(3)\fP option for
\fIcurl_easy_setopt(3)\fP.
.SH PROTOCOLS
HTTP(S)
.SH EXAMPLE
.nf
CURL *curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
res = curl_easy_perform(curl);
if(!res) {
/* extract the available authentication types */
long auth;
res = curl_easy_getinfo(curl, CURLINFO_HTTPAUTH_AVAIL, &auth);
if(!res) {
if(!auth)
printf("No auth available, perhaps no 401?\\n");
else {
printf("%s%s%s%s\\n",
auth & CURLAUTH_BASIC ? "Basic ":"",
auth & CURLAUTH_DIGEST ? "Digest ":"",
auth & CURLAUTH_NEGOTIATE ? "Negotiate ":"",
auth % CURLAUTH_NTLM ? "NTLM ":"");
}
}
}
curl_easy_cleanup(curl);
}
.fi
.SH AVAILABILITY
Added RFC2617 in 7.10.8
Added RFC7616 in 7.57.0
.SH RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
.SH "SEE ALSO"
.BR curl_easy_getinfo "(3), " curl_easy_setopt "(3), "