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e694c8284a
Expand a little. - mention the type name of the return code - avoid stating which exact return codes that might be returned, as that varies over time, builds and conditions - avoid stating some always return OK - refer to the manpage documenting all the return codes Closes #15900
77 lines
1.7 KiB
Markdown
77 lines
1.7 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_SSH_PUBLIC_KEYFILE
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Section: 3
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Source: libcurl
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See-also:
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- CURLOPT_SSH_AUTH_TYPES (3)
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- CURLOPT_SSH_PRIVATE_KEYFILE (3)
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Protocol:
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- SFTP
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- SCP
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Added-in: 7.16.1
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---
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# NAME
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CURLOPT_SSH_PUBLIC_KEYFILE - public key file for SSH auth
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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_SSH_PUBLIC_KEYFILE,
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char *filename);
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~~~
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# DESCRIPTION
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Pass a char pointer pointing to a *filename* for your public key. If not used,
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libcurl defaults to **$HOME/.ssh/id_dsa.pub** if the HOME environment variable
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is set, and just "id_dsa.pub" in the current directory if HOME is not set.
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If NULL (or an empty string) is passed to this option, libcurl passes no
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public key to the SSH library, which then rather derives it from the private
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key. If the SSH library cannot derive the public key from the private one and
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no public one is provided, the transfer fails.
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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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# %PROTOCOLS%
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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, "sftp://example.com/file");
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curl_easy_setopt(curl, CURLOPT_SSH_PUBLIC_KEYFILE,
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"/home/clarkkent/.ssh/id_rsa.pub");
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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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# HISTORY
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The "" trick was added in 7.26.0
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# %AVAILABILITY%
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# RETURN VALUE
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curl_easy_setopt(3) returns a CURLcode indicating success or error.
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CURLE_OK (0) means everything was OK, non-zero means an error occurred, see
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libcurl-errors(3).
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