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71 lines
2.6 KiB
Groff
71 lines
2.6 KiB
Groff
.\" generated by cd2nroff 0.1 from CURLOPT_SSLCERT.md
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.TH CURLOPT_SSLCERT 3 "2024-06-01" libcurl
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.SH NAME
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CURLOPT_SSLCERT \- SSL client certificate
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.SH SYNOPSIS
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.nf
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#include <curl/curl.h>
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CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSLCERT, char *cert);
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.fi
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.SH DESCRIPTION
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Pass a pointer to a null\-terminated string as parameter. The string should be
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the filename of your client certificate. The default format is \fIP12\fP on Secure
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Transport and \fIPEM\fP on other engines, and can be changed with
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\fICURLOPT_SSLCERTTYPE(3)\fP.
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With Secure Transport, this can also be the nickname of the certificate you
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wish to authenticate with as it is named in the security database. If you want
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to use a file from the current directory, please precede it with \fI./\fP prefix,
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in order to avoid confusion with a nickname.
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(Schannel only) Client certificates can be specified by a path expression to a
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certificate store. (You can import \fIPFX\fP to a store first). You can use
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\&"<store location>\\<store name>\\<thumbprint>" to refer to a certificate
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in the system certificates store, for example,
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\fB"CurrentUser\\MY\\934a7ac6f8a5d579285a74fa"\fP. The thumbprint is usually a
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SHA\-1 hex string which you can see in certificate details. Following store
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locations are supported: \fBCurrentUser\fP, \fBLocalMachine\fP,
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\fBCurrentService\fP, \fBServices\fP, \fBCurrentUserGroupPolicy\fP,
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\fBLocalMachineGroupPolicy\fP, \fBLocalMachineEnterprise\fP. Schannel also support
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P12 certificate file, with the string \fIP12\fP specified with
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\fICURLOPT_SSLCERTTYPE(3)\fP.
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When using a client certificate, you most likely also need to provide a
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private key with \fICURLOPT_SSLKEY(3)\fP.
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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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.SH DEFAULT
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NULL
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.SH PROTOCOLS
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All TLS based protocols: HTTPS, FTPS, IMAPS, POP3S, SMTPS etc.
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This option works only with the following TLS backends:
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GnuTLS, OpenSSL, Schannel, Secure Transport, mbedTLS and wolfSSL
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.SH EXAMPLE
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.nf
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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, "https://example.com/");
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curl_easy_setopt(curl, CURLOPT_SSLCERT, "client.pem");
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curl_easy_setopt(curl, CURLOPT_SSLKEY, "key.pem");
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curl_easy_setopt(curl, CURLOPT_KEYPASSWD, "s3cret");
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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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.fi
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.SH AVAILABILITY
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If built TLS enabled.
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.SH RETURN VALUE
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Returns CURLE_OK if TLS enabled, CURLE_UNKNOWN_OPTION if not, or
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CURLE_OUT_OF_MEMORY if there was insufficient heap space.
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.SH SEE ALSO
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.BR CURLOPT_KEYPASSWD (3),
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.BR CURLOPT_SSLCERTTYPE (3),
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.BR CURLOPT_SSLKEY (3)
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