radexample.c

This is an example of how to use the radcli API.

/*
 * Copyright (C) 1995,1996,1997 Lars Fenneberg
 * Copyright (C) 2015 Nikos Mavrogiannopoulos
 *
 * See the file COPYRIGHT for the respective terms and conditions.
 *
 */
 
#include        <config.h>
#include        <stdio.h>
#include        <syslog.h>
#include        <radcli/radcli.h>
 
int
main (int argc, char **argv)
{
        int             result;
        char            username[128];
        char            passwd[AUTH_PASS_LEN + 1];
        VALUE_PAIR      *send = NULL, *received = NULL;
        uint32_t        service;
        rc_handle       *rh;
 
        /* openlog() sets the syslog identity used by radcli's internal messages */
        openlog("my-prog-name", LOG_PID, LOG_DAEMON);
 
        if ((rh = rc_read_config(RC_CONFIG_FILE)) == NULL)
                return ERROR_RC;
 
        snprintf(username, sizeof(username), "my-username");
        snprintf(passwd,   sizeof(passwd),   "my-password");
 
        /*
         * Fill in User-Name
         */
        if (rc_avpair_add(rh, &send, PW_USER_NAME, username, -1, 0) == NULL) {
                rc_destroy(rh);
                return ERROR_RC;
        }
 
        /*
         * Fill in User-Password
         */
        if (rc_avpair_add(rh, &send, PW_USER_PASSWORD, passwd, -1, 0) == NULL) {
                rc_avpair_free(send);
                rc_destroy(rh);
                return ERROR_RC;
        }
 
        /*
         * Fill in Service-Type
         */
        service = PW_AUTHENTICATE_ONLY;
        if (rc_avpair_add(rh, &send, PW_SERVICE_TYPE, &service, -1, 0) == NULL) {
                rc_avpair_free(send);
                rc_destroy(rh);
                return ERROR_RC;
        }
 
        result = rc_auth(rh, 0, send, &received, NULL);
 
        if (result == OK_RC) {
                VALUE_PAIR *vp = received;
                char name[128];
                char value[128];
 
                fprintf(stderr, "\"%s\" RADIUS Authentication OK\n", username);
 
                /* print the known attributes in the reply */
                while(vp != NULL) {
                        if (rc_avpair_tostr(rh, vp, name, sizeof(name), value, sizeof(value)) == 0) {
                                fprintf(stderr, "%s:\t%s\n", name, value);
                        }
                        vp = rc_avpair_next(vp);
                }
        } else {
                fprintf(stderr, "\"%s\" RADIUS Authentication failure (RC=%i)\n", username, result);
        }
 
        rc_avpair_free(send);
        rc_avpair_free(received);
        rc_destroy(rh);
 
        return result;
}