.TH libssh2_userauth_publickey 3 "1 Jun 2007" "libssh2 0.15" "libssh2 manual"
.SH NAME
libssh2_userauth_publickey - authenticate using a callback function
.SH SYNOPSIS
#include <libssh2.h>

.nf
int libssh2_userauth_publickey(LIBSSH2_SESSION *session,
                               const char *user,
                               const unsigned char *pubkeydata,
                               size_t pubkeydata_len,
                               sign_callback,
                               void **abstract);
.SH DESCRIPTION
Authenticate with the \fIsign_callback\fP callback that matches the prototype
below
.SH CALLBACK
.nf
int name(LIBSSH2_SESSION *session, unsigned char **sig, size_t *sig_len,
         const unsigned char *data, size_t data_len, void **abstract);
.fi

This function gets called...
.SH RETURN VALUE
Return 0 on success or negative on failure.
.SH SEE ALSO
.BR libssh2_userauth_publickey_fromfile_ex(3)