extern "C" {
#include "pam_conf.h"
}
#include <pam/smfpam/pam.h>
#include <string.h>
#include <syslog.h>
#include <string>

#include <pam/libpam/include/security/_pam_types.h>

using std::string;

/*
 * Get the configuration for this service as provided by SMF.
 * This configuration will be used in place of the default configuration
 * if provided.
 *
 * XXX - assumes column numbers in pamcfg table won't change!
 *       0 service
 *       1 type
 *       2 sequence
 *       3 control
 *       4 module
 *       5 arguments
 */

void _pam_get_conf(const char *service_name, char *buf, int buflen)
{
    pamcfg_iterator itr(0);
    int bufused = 0;

    buf[0] = (char)0;
    while(itr.next()) {
	if (itr.toString_service() == service_name) {
	    string newRow;
	    newRow = itr.toString_type()      + " " +
		     itr.toString_control()   + " " +
		     itr.toString_module()    + " " +
		     itr.toString_arguments() + "\n";
	    if (newRow.size() > (unsigned)(buflen - bufused - 1)) {
		pam_system_log(0, 0, LOG_ERR,
			       "cannot load PAM configuration for %s.  "
			       "Using default configuration",
			       service_name);
		buf[0] = (char)0;
		return;
	    }
	    strcpy(&buf[bufused], newRow.c_str());
	    bufused += (int) newRow.size();
	}
    }
    return;
}