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/*
* iptest.c: iptest IPv4/IPv6 validator
*
* Maintainer: Daniil Baturin <daniil at baturin dot org>
*
* Copyright (C) 2013 SO3Group
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <errno.h>
#include "config.h"
#include "iptest.h"
static const struct option options[] =
{
{ "is-valid", no_argument, NULL, 'a' },
{ "has-mask", no_argument, NULL, 'b' },
{ "is-ipv4", no_argument, NULL, 'c' },
{ "is-ipv4-cidr", no_argument, NULL, 'd' },
{ "is-ipv4-single", no_argument, NULL, 'e' },
{ "is-ipv4-host", no_argument, NULL, 'f' },
{ "is-ipv4-net", no_argument, NULL, 'g' },
{ "is-ipv4-broadcast", no_argument, NULL, 'h' },
{ "is-ipv4-multicast", no_argument, NULL, 'i' },
{ "is-ipv4-loopback", no_argument, NULL, 'j' },
{ "is-ipv4-link-local", no_argument, NULL, 'k' },
{ "is-ipv4-rfc1918", no_argument, NULL, 'l' },
{ "is-ipv6", no_argument, NULL, 'm' },
{ "is-ipv6-cidr", no_argument, NULL, 'n' },
{ "is-ipv6-single", no_argument, NULL, 'o' },
{ "is-ipv6-host", no_argument, NULL, 'p' },
{ "is-ipv6-net", no_argument, NULL, 'r' },
{ "is-ipv6-multicast", no_argument, NULL, 's' },
{ "is-ipv6-link-local", no_argument, NULL, 't' },
{ "is-valid-intf-address", no_argument, NULL, 'u' },
{ "version", no_argument, NULL, 'z' },
{ NULL, no_argument, NULL, 0 }
};
/* Auxillary functions */
static void print_help(void);
static void print_version(void);
int main(int argc, char* argv[])
{
char *address_str = ""; /* IP address string obtained from arguments */
int action = 0; /* Action associated with given check option */
int* actions; /* Array of all given actions */
int action_count = 0; /* Actions array size */
int option_index = 0; /* Number of the current option for getopt call */
int optc; /* Option character for getopt call */
/* Parse options, convert to action codes, store in array */
/* Try to allocate memory for the actions array, abort if fail */
actions = (int*)calloc(argc, sizeof(int));
if( errno == ENOMEM )
{
fprintf(stderr, "Error: could not allocate memory!\n");
return(EXIT_FAILURE);
}
while( (optc = getopt_long(argc, argv, "abcdv?", options, &option_index)) != -1 )
{
switch(optc)
{
case 'a':
action = IS_VALID;
break;
case 'b':
action = HAS_MASK;
break;
case 'c':
action = IS_IPV4;
break;
case 'd':
action = IS_IPV4_CIDR;
break;
case 'e':
action = IS_IPV4_SINGLE;
break;
case 'f':
action = IS_IPV4_HOST;
break;
case 'g':
action = IS_IPV4_NET;
case 'h':
action = IS_IPV4_BROADCAST;
break;
case 'i':
action = IS_IPV4_MULTICAST;
break;
case 'j':
action = IS_IPV4_LOOPBACK;
break;
case 'k':
action = IS_IPV4_LINKLOCAL;
break;
case 'l':
action = IS_IPV4_RFC1918;
break;
case 'm':
action = IS_IPV6;
break;
case 'n':
action = IS_IPV6_CIDR;
break;
case 'o':
action = IS_IPV6_SINGLE;
break;
case 'p':
action = IS_IPV6_HOST;
break;
case 'r':
action = IS_IPV6_NET;
break;
case 's':
action = IS_IPV6_MULTICAST;
break;
case 't':
action = IS_IPV6_LINKLOCAL;
break;
case 'u':
action = IS_VALID_INTF_ADDR;
break;
case '?':
print_help();
return(0);
case 'z':
print_version();
return(0);
default:
fprintf(stderr, "Error: invalid option\n");
break;
}
action_count = optind-2;
actions[action_count] = action;
}
/* Get non-option arguments */
if( (argc - optind) == 1 )
{
address_str = argv[optind];
printf("%s\n", address_str);
}
else
{
fprintf(stderr, "Error: wrong number of arguments, one argument required!\n");
print_help();
return(EXIT_FAILURE);
}
CIDR *address;
address = cidr_from_str(address_str);
int result = RESULT_SUCCESS;
/* Check if the address is valid at all,
if not there is no point in going further */
if( is_valid_address(address) != RESULT_SUCCESS )
{
return(EXIT_FAILURE);
}
printf("action_count: %d\n", action_count);
while( (action_count >= 0) && (result == RESULT_SUCCESS) )
{
switch(actions[action_count])
{
case IS_VALID:
result = is_valid_address(address);
break;
case HAS_MASK:
result = has_mask(address_str);
break;
case IS_IPV4:
result = is_ipv4(address);
break;
case IS_IPV4_CIDR:
result = is_ipv4_cidr(address_str);
break;
case IS_IPV4_SINGLE:
if( !(is_ipv4(address) && has_mask(address_str)) )
{
result = RESULT_FAILURE;
}
/* No need to change it in case of success */
break;
case IS_IPV4_HOST:
result = is_ipv4_host(address);
break;
case IS_IPV4_NET:
/* XXX: Should we fail this check for single addresses? */
result = is_ipv4_net(address);
break;
case IS_IPV4_BROADCAST:
result = is_ipv4_broadcast(address);
break;
case IS_IPV4_MULTICAST:
result = is_ipv4_multicast(address);
break;
case IS_IPV4_LOOPBACK:
result = is_ipv4_loopback(address);
break;
case IS_IPV4_LINKLOCAL:
result = is_ipv4_link_local(address);
break;
case IS_IPV4_RFC1918:
result = is_ipv4_rfc1918(address);
break;
case IS_IPV6:
result = is_ipv6(address);
break;
case IS_IPV6_HOST:
result = is_ipv6_host(address);
break;
case IS_IPV6_NET:
result = is_ipv6_net(address);
break;
}
printf("action: %d\n", actions[action_count]);
action_count--;
}
/* Clean up */
free(actions);
cidr_free(address);
if( result == RESULT_SUCCESS )
{
return(EXIT_SUCCESS);
}
else
{
return(EXIT_FAILURE);
}
}
/*
* Print help, no other side effects
*/
void print_help(void)
{
static const char *message = \
"--is-valid STR Check if STR is a valid IPv4 or IPv6 address\n\
or subnet\n\
--is-ipv4 STR Check if STR is a valid IPv4 address with mask\n";
printf("%s", message);
}
/*
* Print version information, no other side effects
*/
void print_version(void)
{
printf("%s %s\n", PACKAGE_NAME, PACKAGE_VERSION);
printf("Copyright (C) SO3Group 2013.\n\
License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl.html>\n\
This is free software: you are free to change and redistribute it.\n\
There is NO WARRANTY, to the extent permitted by law.\n");
}
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