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/*
* Tiny RADIUS Client Library
* Copyright (C) 2022 David M. Syzdek <david@syzdek.net>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of David M. Syzdek nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL DAVID M. SYZDEK BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#define _SRC_TRU_WIDGET_URL_C 1
///////////////
// //
// Headers //
// //
///////////////
#pragma mark - Headers
#include "tinyradutil.h"
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <unistd.h>
#include <arpa/inet.h>
#include <assert.h>
//////////////////
// //
// Prototypes //
// //
//////////////////
#pragma mark - Prototypes
int
tru_widget_url_print(
TinyRadURLDesc * trudp );
int
tru_widget_url_usage(
TinyRadUtilConf * cnf,
const char * short_opt );
/////////////////
// //
// Functions //
// //
/////////////////
#pragma mark - Functions
int
tru_widget_url(
TinyRadUtilConf * cnf )
{
int rc;
int pos;
TinyRadURLDesc * trudp;
TinyRadURLDesc ** trudpp;
TinyRadURLDesc * trudp_next;
// getopt options
static char short_opt[] = "r" TRU_COMMON_SHORT TRU_NET_SHORT;
static struct option long_opt[] =
{
{ "resolve", no_argument, NULL, 'r' }, \
TRU_NET_LONG \
TRU_COMMON_LONG
};
trudp = NULL;
trudp_next = NULL;
// process widget cli options
if ((rc = tru_cli_parse(cnf, cnf->argc, cnf->argv, short_opt, long_opt, &tru_widget_url_usage)) != 0)
{
return((rc == 0) ? 0 : 1);
};
if (optind >= cnf->argc)
{
fprintf(stderr, "%s: missing required argument\n", PROGRAM_NAME);
fprintf(stderr, "Try `%s %s --help' for more information.\n", PROGRAM_NAME, cnf->widget_name);
return(1);
};
// parse and resolve URLs
trudpp = &trudp;
for(pos = optind; (pos < cnf->argc); pos++)
{
if ((rc = tinyrad_urldesc_parse(cnf->argv[pos], trudpp)) != TRAD_SUCCESS)
{
if (!(cnf->opts & TRUTILS_OPT_QUIET))
{
fprintf(stderr, "%s: %s: %s: %s\n", PROGRAM_NAME, cnf->widget_name, cnf->argv[pos], tinyrad_strerror(rc));
fprintf(stderr, "Try `%s %s --help' for more information.\n", PROGRAM_NAME, cnf->widget_name);
};
return(1);
};
if ((cnf->opts & TRU_OPT_RESOLVE))
{
if ((rc = tinyrad_urldesc_resolve(*trudpp, cnf->tr_opts)) != TRAD_SUCCESS)
{
if (!(cnf->opts & TRUTILS_OPT_QUIET))
{
fprintf(stderr, "%s: %s: %s: %s\n", PROGRAM_NAME, cnf->widget_name, cnf->argv[pos], tinyrad_strerror(rc));
fprintf(stderr, "Try `%s %s --help' for more information.\n", PROGRAM_NAME, cnf->widget_name);
};
return(1);
};
};
trudpp = &(*trudpp)->trud_next;
};
// exit if not displaying output
if (!(cnf->opts & TRUTILS_OPT_VERBOSE))
{
tinyrad_urldesc_free(trudp);
return(0);
};
// display URLs
trudp_next = trudp;
while ((trudp_next))
{
if ((tru_widget_url_print(trudp_next)))
{
tinyrad_urldesc_free(trudp);
return(1);
};
trudp_next = trudp_next->trud_next;
};
tinyrad_urldesc_free(trudp);
return(TRAD_SUCCESS);
}
int
tru_widget_url_print(
TinyRadURLDesc * trudp )
{
int pos;
char * str;
const char * scheme;
struct sockaddr_storage * sas;
char addr[INET6_ADDRSTRLEN];
if ((str = tinyrad_urldesc2str(trudp)) == NULL)
{
fprintf(stderr, "%s: out of virtual memory\n", PROGRAM_NAME);
tinyrad_urldesc_free(trudp);
return(1);
};
switch(trudp->trud_opts & TRAD_SCHEME)
{
case TRAD_RADIUS: scheme = "radius (RFC2865 RADIUS)"; break;;
case TRAD_RADIUS_ACCT: scheme = "radius-acct (RFC2866 RADIUS Accounting)"; break;;
case TRAD_RADIUS_DYNAUTH: scheme = "radius-dynauth (RFC2866 RADIUS Dynamic Authorization)"; break;;
case TRAD_RADSEC: scheme = "radsec (RFC6614/RFC7360 RADIUS TLS/DTLS)"; break;;
default: scheme = "Unknown or unsupported URL scheme"; break;
};
printf("%s\n", str);
printf(" scheme: %s\n", scheme);
printf(" host: %s\n", trudp->trud_host);
printf(" port: %i\n", trudp->trud_port);
printf(" secret: %s\n", (((trudp->trud_secret)) ? trudp->trud_secret : "n/a"));
printf(" protocol: %s\n", ((trudp->trud_opts & TRAD_TCP)) ? "tcp" : "udp");
if ( ((trudp->trud_sockaddrs)) && ((trudp->trud_sockaddrs[0])) )
{
for(pos = 0; ((trudp->trud_sockaddrs[pos])); pos++)
{
sas = trudp->trud_sockaddrs[pos];
switch(sas->ss_family)
{
case AF_INET: inet_ntop(sas->ss_family, &((struct sockaddr_in *)sas)->sin_addr, addr, sizeof(addr)); break;
case AF_INET6: inet_ntop(sas->ss_family, &((struct sockaddr_in6 *)sas)->sin6_addr, addr, sizeof(addr)); break;
default:
addr[0] = '\0';
break;
};
printf(" %s%s\n", ((!(pos)) ? "addresses: " : " "), addr);
};
};
printf("\n");
tinyrad_free(str);
return(0);
}
int
tru_widget_url_usage(
TinyRadUtilConf * cnf,
const char * short_opt )
{
tru_usage_summary(cnf);
tru_usage_options(short_opt);
printf("\n");
printf("URL Syntax:\n");
printf(" radius://hostport/[secret][?proto] use RFC2865 (udp/port 1812)\n");
printf(" radius-acct://hostport/[secret][?proto] use RFC2866 (udp/port 1813)\n");
printf(" radsec://hostport/[?proto] use RFC6614/RFC7360 (tcp/port 2083)\n");
printf(" radius-dynauth://hostport/[secret][?proto] use RFC5176 (udp/port 3799)\n");
printf("\n");
printf(" where:\n");
printf(" 'hostport' is a host name with an optional ':portnumber'\n");
printf(" 'secret' is the RADIUS secret encoded using character encoding in RFC3986\n");
printf(" 'proto' is communication protocol used by the connection (UDP or TCP)\n");
printf("\n");
return(0);
}
/* end of source */
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