int main (int argc, char * argv[])
{
int i, status, lsockfd, csockfd; /* local/connection socket file descriptor */
struct sockaddr_in raddr; /* remote address object */
socklen_t raddr_len = sizeof (struct sockaddr_in);
pthread_t connThread; /* thread identifier */
User_Settings * o_stngs; /* user suplied settings struct (stores user settings)*/
/* set global variables */
server = "simpleText";
version = 1.0f;
/* allocate user suplied settings struct */
o_stngs = malloc(sizeof(User_Settings));
/* read configuration file */
read_conf_file (o_stngs);
/* parse and set cli options */
parse_cli_opts (argc, (char **) &argv[0], o_stngs);
/* make daemon and start logging */
status = init_daemon (server, o_stngs);
if (status == 0)
return EXIT_SUCCESS; /* parent returns success */
else if (status == 1)
return EXIT_FAILURE; /* parent returns failure */
syslog (LOG_NOTICE, "[PID: %u, SID: %u] > %s started..",
getpid (), getsid (getpid ()), server);
/* Read Hosts File */
host_cnt = read_host_file (NULL, 1);
for (i = 0; i < host_cnt; i++)
read_host_file (&o_vhost[i], 0);
/* start listening for TCP connections */
lsockfd = start_listen (o_stngs->port);
free(o_stngs);
/* loop through accepting and handling connections */
while (1)
{
/* accept connection or skip to next conection if accept fails */
csockfd = accept (lsockfd, (struct sockaddr *) &raddr, &raddr_len);
if (csockfd == -1) /* if connection fails ignore it and continue */
continue;
Connect_Args * o_args = malloc(sizeof(Connect_Args *));
o_args->socket = csockfd;
strcpy (o_args->client_addr, inet_ntoa (raddr.sin_addr));
/* create thread to handle connection */
pthread_create(&connThread, NULL, (void *) &attent_connection, o_args);
/* wait for one second before accepting next connection */
sleep (1);
}
}
/**
* Add a host to the list and notify clients about this event
*
* @param identity the identity of the host
* @return the HostEntry
*/
static struct HostEntry *
add_host_to_known_hosts (const struct GNUNET_PeerIdentity *identity)
{
struct HostEntry *entry;
struct ReadHostFileContext r;
char *fn;
entry = GNUNET_CONTAINER_multipeermap_get (hostmap, identity);
if (NULL == entry)
{
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Adding new peer `%s'\n", GNUNET_i2s (identity));
GNUNET_STATISTICS_update (stats, gettext_noop ("# peers known"), 1,
GNUNET_NO);
entry = GNUNET_new (struct HostEntry);
entry->identity = *identity;
GNUNET_assert (GNUNET_OK ==
GNUNET_CONTAINER_multipeermap_put (hostmap, &entry->identity, entry,
GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
notify_all (entry);
fn = get_host_filename (identity);
if (NULL != fn)
{
read_host_file (fn, GNUNET_YES, &r);
if (NULL != r.hello)
update_hello (identity, r.hello);
if (NULL != r.friend_only_hello)
update_hello (identity, r.friend_only_hello);
GNUNET_free_non_null (r.hello);
GNUNET_free_non_null (r.friend_only_hello);
GNUNET_free (fn);
}
}
/**
* Function that is called on each HELLO file in a particular directory.
* Try to parse the file and add the HELLO to our list.
*
* @param cls pointer to 'unsigned int' to increment for each file, or NULL
* if the file is from a read-only, read-once resource directory
* @param fullname name of the file to parse
* @return GNUNET_OK (continue iteration)
*/
static int
hosts_directory_scan_callback (void *cls, const char *fullname)
{
unsigned int *matched = cls;
struct GNUNET_PeerIdentity identity;
const char *filename;
struct HostEntry *entry;
struct GNUNET_HELLO_Message *hello;
if (GNUNET_DISK_file_test (fullname) != GNUNET_YES)
return GNUNET_OK; /* ignore non-files */
if (strlen (fullname) < sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded))
{
if (NULL != matched)
remove_garbage (fullname);
return GNUNET_OK;
}
filename =
&fullname[strlen (fullname) -
sizeof (struct GNUNET_CRYPTO_HashAsciiEncoded) + 1];
if (filename[-1] != DIR_SEPARATOR)
{
if (NULL != matched)
remove_garbage (fullname);
return GNUNET_OK;
}
if (GNUNET_OK !=
GNUNET_CRYPTO_hash_from_string (filename, &identity.hashPubKey))
{
if (NULL != (hello = read_host_file (filename)))
{
entry = GNUNET_malloc (sizeof (struct HostEntry));
if (GNUNET_OK ==
GNUNET_HELLO_get_id (hello,
&entry->identity))
{
GNUNET_CONTAINER_multihashmap_put (hostmap, &entry->identity.hashPubKey, entry,
GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
entry->hello = hello;
notify_all (entry);
return GNUNET_OK;
}
GNUNET_free (entry);
}
if (NULL != matched)
remove_garbage (fullname);
return GNUNET_OK;
}
if (NULL != matched)
(*matched)++;
add_host_to_known_hosts (&identity);
return GNUNET_OK;
}
/**
* Add a host to the list.
*
* @param identity the identity of the host
*/
static void
add_host_to_known_hosts (const struct GNUNET_PeerIdentity *identity)
{
struct HostEntry *entry;
char *fn;
entry = GNUNET_CONTAINER_multihashmap_get (hostmap, &identity->hashPubKey);
if (entry != NULL)
return;
GNUNET_STATISTICS_update (stats, gettext_noop ("# peers known"), 1,
GNUNET_NO);
entry = GNUNET_malloc (sizeof (struct HostEntry));
entry->identity = *identity;
GNUNET_CONTAINER_multihashmap_put (hostmap, &identity->hashPubKey, entry,
GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
fn = get_host_filename (identity);
entry->hello = read_host_file (fn);
GNUNET_free (fn);
notify_all (entry);
}