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CURLOPT_SS...IC_KEYFILE(3) Library Functions Manual CURLOPT_SS...IC_KEYFILE(3) NAME CURLOPT_SSH_PUBLIC_KEYFILE - public key file for SSH auth SYNOPSIS #include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSH_PUBLIC_KEYFILE, char *filename); DESCRIPTION Pass a char pointer pointing to a filename for your public key. If not used, libcurl defaults to $HOME/.ssh/id_dsa.pub if the HOME environment variable is set, and just "id_dsa.pub" in the current directory if HOME is not set. If NULL (or an empty string) is passed to this option, libcurl passes no public key to the SSH library, which then rather derives it from the private key. If the SSH library cannot derive the public key from the private one and no public one is provided, the transfer fails. The application does not have to keep the string around after setting this option. DEFAULT NULL PROTOCOLS This functionality affects scp and sftp EXAMPLE int main(void) { CURL *curl = curl_easy_init(); if(curl) { CURLcode res; curl_easy_setopt(curl, CURLOPT_URL, "sftp://example.com/file"); curl_easy_setopt(curl, CURLOPT_SSH_PUBLIC_KEYFILE, "/home/clarkkent/.ssh/id_rsa.pub"); res = curl_easy_perform(curl); curl_easy_cleanup(curl); } } HISTORY The "" trick was added in 7.26.0 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_PRIVATE_KEYFILE(3) libcurl 2025-06-03 CURLOPT_SS...IC_KEYFILE(3)
NAME | SYNOPSIS | DESCRIPTION | DEFAULT | PROTOCOLS | EXAMPLE | HISTORY | AVAILABILITY | RETURN VALUE | SEE ALSO
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