/*! \brief USERHOST command handler
*
* \param source_p Pointer to allocated Client struct from which the message
* originally comes from. This can be a local or remote client.
* \param parc Integer holding the number of supplied arguments.
* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
* pointers.
* \note Valid arguments for this command are:
* - parv[0] = command
* - parv[1] = space-separated list of up to 5 nicknames
*/
static int
m_userhost(struct Client *source_p, int parc, char *parv[])
{
char buf[IRCD_BUFSIZE];
char response[NICKLEN + USERLEN + HOSTLEN + 6]; /* +6 for "*=+@ \0" */
char *t = NULL, *p = NULL;
int i = 0;
int cur_len;
int rl;
cur_len = snprintf(buf, sizeof(buf), numeric_form(RPL_USERHOST), me.name, source_p->name, "");
t = buf + cur_len;
for (const char *name = strtok_r(parv[1], " ", &p); name && i++ < 5;
name = strtok_r(NULL, " ", &p))
{
const struct Client *target_p;
if ((target_p = find_person(source_p, name)))
{
/*
* Show real IP address for USERHOST on yourself.
* This is needed for things like mIRC, which do a server-based
* lookup (USERHOST) to figure out what the clients' local IP
* is. Useful for things like NAT, and dynamic dial-up users.
*/
if (target_p == source_p)
{
rl = snprintf(response, sizeof(response), "%s%s=%c%s@%s ",
target_p->name,
HasUMode(target_p, UMODE_OPER) ? "*" : "",
(target_p->away[0]) ? '-' : '+',
target_p->username,
target_p->sockhost);
}
else
{
rl = snprintf(response, sizeof(response), "%s%s=%c%s@%s ",
target_p->name, (HasUMode(target_p, UMODE_OPER) &&
(!HasUMode(target_p, UMODE_HIDDEN) ||
HasUMode(source_p, UMODE_OPER))) ? "*" : "",
(target_p->away[0]) ? '-' : '+',
target_p->username,
target_p->host);
}
if ((rl + cur_len) < (IRCD_BUFSIZE - 10))
{
sprintf(t, "%s", response);
t += rl;
cur_len += rl;
}
else
break;
}
}
sendto_one(source_p, "%s", buf);
return 0;
}
/*! \brief ISON command handler
*
* \param source_p Pointer to allocated Client struct from which the message
* originally comes from. This can be a local or remote client.
* \param parc Integer holding the number of supplied arguments.
* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
* pointers.
* \note Valid arguments for this command are:
* - parv[0] = command
* - parv[1] = space-separated list of nicknames
*/
static int
m_ison(struct Client *source_p, int parc, char *parv[])
{
struct Client *target_p = NULL;
char *nick;
char *p = NULL;
char *current_insert_point = NULL;
char buf[IRCD_BUFSIZE];
int len, cut = 0;
len = snprintf(buf, sizeof(buf), numeric_form(RPL_ISON), me.name, source_p->name);
current_insert_point = buf + len;
for (nick = strtok_r(parv[1], " ", &p); nick;
nick = strtok_r(NULL, " ", &p))
{
if ((target_p = find_person(source_p, nick)))
{
len = strlen(target_p->name);
if ((current_insert_point + (len + 5)) < (buf + sizeof(buf)))
{
cut = 1;
strlcpy(current_insert_point, target_p->name, len + 1);
current_insert_point += len;
*current_insert_point++ = ' ';
}
else
break;
}
}
*(current_insert_point - cut) = '\0';
sendto_one(source_p, "%s", buf);
return 0;
}
