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CURLOPT_SS...ATE_KEYFILE(3) Library Functions Manual CURLOPT_SS...ATE_KEYFILE(3) NAME CURLOPT_SSH_PRIVATE_KEYFILE - private key file for SSH auth SYNOPSIS #include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSH_PRIVATE_KEYFILE, char *filename); DESCRIPTION Pass a char pointer pointing to a filename for your private key. If not used, libcurl defaults to $HOME/.ssh/id_rsa or $HOME/.ssh/id_dsa if the HOME environment variable is set, and in the current directory if HOME is not set. If the file is password-protected, set the password with CURLOPT_KEY- PASSWD(3). The SSH library derives the public key from this private key when possible. If the SSH library cannot derive the public key from the private one and no public one is provided with CURLOPT_SSH_PUBLIC_KEYFILE(3), the transfer fails. The application does not have to keep the string around after setting this option. DEFAULT As explained above PROTOCOLS This functionality affects scp and sftp EXAMPLE int main(void) { CURL *curl = curl_easy_init(); if(curl) { CURLcode result; curl_easy_setopt(curl, CURLOPT_URL, "sftp://example.com/file"); curl_easy_setopt(curl, CURLOPT_SSH_PRIVATE_KEYFILE, "/home/clarkkent/.ssh/id_rsa"); curl_easy_setopt(curl, CURLOPT_KEYPASSWD, "password"); result = curl_easy_perform(curl); curl_easy_cleanup(curl); } } AVAILABILITY Added in curl 7.16.1 RETURN VALUE curl_easy_setopt(3) returns a CURLcode indicating success or error. CURLE_OK (0) means everything was OK, non-zero means an error occurred, see libcurl-errors(3). SEE ALSO CURLOPT_SSH_AUTH_TYPES(3), CURLOPT_SSH_PUBLIC_KEYFILE(3) libcurl 2026-06-11 CURLOPT_SS...ATE_KEYFILE(3)
NAME | SYNOPSIS | DESCRIPTION | DEFAULT | PROTOCOLS | EXAMPLE | AVAILABILITY | RETURN VALUE | SEE ALSO
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