libssh2_userauth_publickey_fromfile(3)

NAME
libssh2_userauth_publickey_fromfile - authenticate a session with a public key, read from a file

SYNOPSIS
#include <libssh2.h> int libssh2_userauth_publickey_fromfile_ex(LIBSSH2_SESSION *session, const char *username, unsigned int username_len, const char *publickey, const char *privatekey, const char *passphrase); int libssh2_userauth_publickey_fromfile_ex(LIBSSH2_SESSION *session, const char *username, const char *publickey, const char *privatekey, const char *passphrase);

DESCRIPTION
session - Session instance as returned by libssh2_session_init(3) username - Remote user name to authenticate as. username_len - Length of username. publickey - Path and name of public key file. (e.g. /etc/ssh/hostkey.pub) privatekey - Path and name of private key file. (e.g. /etc/ssh/hostkey) passphrase - Passphrase to use when decoding private key file. Attempt public key authentication using a PEM encoded private key file stored on disk

RETURN VALUE
Return 0 on success or negative on failure. It returns LIBSSH2_ERROR_EAGAIN when it would otherwise block. While LIBSSH2_ERROR_EAGAIN is a negative number, it isn't really a failure per se.

ERRORS
LIBSSH2_ERROR_ALLOC - An internal memory allocation call failed. LIBSSH2_ERROR_SOCKET_SEND - Unable to send data on socket. LIBSSH2_ERROR_SOCKET_TIMEOUT - LIBSSH2_ERROR_PUBLICKEY_UNRECOGNIZED - >The username/public key combination was invalid. LIBSSH2_ERROR_PUBLICKEY_UNVERIFIED - The username/public key combination was invalid, or the signature for the supplied public key was invalid.

SEE ALSO
libssh2_session_init(3)