69 lines
1.5 KiB
Markdown
69 lines
1.5 KiB
Markdown
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---
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c: Copyright (C) Daniel Stenberg, <daniel.se>, et al.
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SPDX-License-Identifier: curl
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Title: CURLOPT_SSH_KNOWNHOSTS
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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_HOST_PUBLIC_KEY_MD5 (3)
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---
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# NAME
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CURLOPT_SSH_KNOWNHOSTS - filename holding the SSH known 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_SSH_KNOWNHOSTS, char *fname);
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~~~
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# DESCRIPTION
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Pass a pointer to a null-terminated string holding the filename of the
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known_host file to use. The known_hosts file should use the OpenSSH file
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format as supported by libssh2. If this file is specified, libcurl only
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accepts connections with hosts that are known and present in that file, with a
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matching public key. Use CURLOPT_SSH_KEYFUNCTION(3) to alter the default
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behavior on host and key matches and mismatches.
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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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SFTP and SCP
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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_KNOWNHOSTS,
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"/home/clarkkent/.ssh/known_hosts");
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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 7.19.6
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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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