int process_arguments (int argc, char **argv) {
int c;
int option = 0;
static struct option long_opts[] = {
MP_LONGOPTS_DEFAULT,
MP_LONGOPTS_HOST,
LDNS_LONGOPTS,
{"domain", required_argument, 0, 'D'},
{"trace-from", required_argument, 0, 'T'},
{"trusted-keys", required_argument, 0, 'k'},
{"resolver", required_argument, 0, 'R'},
MP_LONGOPTS_END
};
if (argc < 2) {
print_help();
exit (STATE_OK);
}
while (1) {
c = mp_getopt(&argc, &argv, MP_OPTSTR_DEFAULT"H:D:T:k:R:"LDNS_OPTSTR, long_opts, &option);
if (c == -1 || c == EOF)
break;
getopt_ldns(c);
switch (c) {
/* Host opt */
case 'H':
getopt_host_ip(optarg, &hostname);
break;
case 'D':
if (!is_hostname(optarg))
usage("Illegal domain name.");
domainname = optarg;
break;
case 'k':
trusted_keys = loadKeyfile(optarg);
if (trusted_keys == NULL)
usage("Parsing keyfile failed.");
break;
case 'T':
if (!is_hostname(optarg))
usage("Illegal trace domain name.");
domaintrace = optarg;
break;
case 'R':
getopt_host_ip(optarg, &resolver);
break;
}
}
/* Check requirements */
if(!domainname)
usage("Domain is mandatory");
return OK;
}
int
is_host (const char *address)
{
if (is_addr (address) || is_hostname (address))
return (TRUE);
return (FALSE);
}
/**
* @brief Determines the host type in a buffer.
*
* @param[in] str Buffer that contains host definition, could a be hostname,
* single IPv4 or IPv6, CIDR-expressed block etc,.
*
* @return Host_TYPE_*, -1 if error.
*/
static int
determine_host_type (const gchar *str_stripped)
{
/*
* We have a single element with no leading or trailing
* white spaces. This element could represent different host
* definitions: single IPs, host names, CIDR-expressed blocks,
* range-expressed networks, IPv6 addresses.
*/
/* Null or empty string. */
if (str_stripped == NULL || *str_stripped == '\0')
return -1;
/* Check for regular single IPv4 address. */
if (is_ipv4_address (str_stripped))
return HOST_TYPE_IPV4;
/* Check for regular single IPv6 address. */
if (is_ipv6_address (str_stripped))
return HOST_TYPE_IPV6;
/* Check for regular IPv4 CIDR-expressed block like "192.168.12.0/24" */
if (is_cidr_block (str_stripped))
return HOST_TYPE_CIDR_BLOCK;
/* Check for short range-expressed networks "192.168.12.5-40" */
if (is_short_range_network (str_stripped))
return HOST_TYPE_RANGE_SHORT;
/* Check for long range-expressed networks "192.168.1.0-192.168.3.44" */
if (is_long_range_network (str_stripped))
return HOST_TYPE_RANGE_LONG;
/* Check for regular IPv6 CIDR-expressed block like "2620:0:2d0:200::7/120" */
if (is_cidr6_block (str_stripped))
return HOST_TYPE_CIDR6_BLOCK;
/* Check for short range-expressed networks "::1-ef12" */
if (is_short_range6_network (str_stripped))
return HOST_TYPE_RANGE6_SHORT;
/* Check for long IPv6 range-expressed networks like "::1:20:7-::1:25:3" */
if (is_long_range6_network (str_stripped))
return HOST_TYPE_RANGE6_LONG;
/* Check for hostname. */
if (is_hostname (str_stripped))
return HOST_TYPE_NAME;
/* @todo: If everything else fails, fallback to hostname ? */
return -1;
}
static int
matchhostname(const char *hostname1, const char *hostname2)
{
struct addrinfo *results1 = NULL, *results2 = NULL;
struct addrinfo *ai1, *ai2;
int result = 0;
if (strcasecmp(hostname1, hostname2) == 0)
return 1;
/*
* Don't pass export wildcards or netgroup names to DNS
*/
if (!is_hostname(hostname1) || !is_hostname(hostname2))
return 0;
results1 = address_list(hostname1);
if (results1 == NULL)
goto out;
results2 = address_list(hostname2);
if (results2 == NULL)
goto out;
if (strcasecmp(results1->ai_canonname, results2->ai_canonname) == 0) {
result = 1;
goto out;
}
for (ai1 = results1; ai1 != NULL; ai1 = ai1->ai_next)
for (ai2 = results2; ai2 != NULL; ai2 = ai2->ai_next)
if (nfs_compare_sockaddr(ai1->ai_addr, ai2->ai_addr)) {
result = 1;
break;
}
out:
freeaddrinfo(results1);
freeaddrinfo(results2);
return result;
}
int is_url(const char *url) {
char *buf, *buf2;
char *remain = strdup(url);
/* Schema */
buf = strsep(&remain, ":");
if (!remain)
return FALSE;
if (!isalpha(*buf))
return FALSE;
while(*(++buf)) {
if (isalnum(*buf) || *buf == '+' || *buf == '-' || *buf == '.')
continue;
return FALSE;
}
if (*(remain) != '/' || *(remain+1) != '/')
return FALSE;
remain+=2;
/* Authority */
buf = strsep(&remain, "/?#");
if (*buf != '\0') {
/* Authority - Userinfo */
if (strstr(buf, "@")) {
buf2 = strsep(&buf, "@");
do {
if (isalnum(*buf2) || *buf2 == '+' || *buf2 == '-' || *buf2 == '.' ||
*buf2 == '~' || *buf2 == '!' || *buf2 == '$' || *buf2 == '&' ||
*buf2 == '\'' || *buf2 == '(' || *buf2 == ')' || *buf2 == '*' ||
*buf2 == ',' || *buf2 == ';' || *buf2 == '=' || *buf2 == ':')
continue;
if (*buf2 == '%' && isxdigit(*(buf2+1)) && isxdigit(*(buf2+2))) {
buf2+=2;
continue;
}
return FALSE;
} while(*(++buf2));
}
/* Authority - Host */
if (*buf == '[') {
buf++;
buf2 = strsep(&buf, "]");
if(*buf2 == ':')
buf2++;
if (!buf)
return FALSE;
do {
if (isxdigit(*buf2) || *buf2 == ':')
continue;
return FALSE;
} while(*(++buf2));
} else if (isdigit(*buf)) {
buf2 = strsep(&buf, ":");
if (!is_hostaddr(buf2))
return FALSE;
} else {
buf2 = strsep(&buf, ":");
if (!is_hostname(buf2))
return FALSE;
}
/* Authority - Port */
if (buf && *buf != '\0') {
do {
if (isdigit(*buf))
continue;
return FALSE;
} while(*(++buf));
}
}
if (!remain || *remain == '\0')
return TRUE;
/* Path */
buf = strsep(&remain, "?#");
while(1) {
if (*buf == '\0')
break;
if (isalnum(*buf) || *buf == '+' || *buf == '-' || *buf == '.' ||
*buf == '~' || *buf == '!' || *buf == '$' || *buf == '&' ||
*buf == '\'' || *buf == '(' || *buf == ')' || *buf == '*' ||
*buf == ',' || *buf == ';' || *buf == '=' || *buf == ':' ||
*buf == '@' || *buf == '/') {
buf++;
continue;
}
if (*buf == '%' && isxdigit(*(buf+1)) && isxdigit(*(buf+2))) {
buf+=3;
continue;
}
return FALSE;
}
if (!remain || *remain == '\0')
return TRUE;
/* Query & Fragment */
buf = remain;
while(1) {
if (*buf == '\0')
break;
if (isalnum(*buf) || *buf == '+' || *buf == '-' || *buf == '.' ||
*buf == '~' || *buf == '!' || *buf == '$' || *buf == '&' ||
*buf == '\'' || *buf == '(' || *buf == ')' || *buf == '*' ||
*buf == ',' || *buf == ';' || *buf == '=' || *buf == ':' ||
*buf == '@' || *buf == '/' || *buf == '?' || *buf == '#') {
buf++;
continue;
}
if (*buf == '%' && isxdigit(*(buf+1)) && isxdigit(*(buf+2))) {
buf+=3;
continue;
}
return FALSE;
}
return TRUE;
}
void
host_or_die(const char *str)
{
if(!str || (!is_addr(str) && !is_hostname(str)))
usage_va(_("Invalid hostname/address - %s"), str);
}