/*! \brief CAPAB 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 capabilities
*/
static int
mr_capab(struct Client *source_p, int parc, char *parv[])
{
unsigned int cap = 0;
char *p = NULL;
char *s = NULL;
for (s = strtok_r(parv[1], " ", &p); s;
s = strtok_r(NULL, " ", &p))
if ((cap = find_capability(s)))
SetCapable(source_p, cap);
return 0;
}
/*
* m_pass() - Added Sat, 4 March 1989
*
*
* mr_pass - PASS message handler
* parv[0] = sender prefix
* parv[1] = password
* parv[2] = optional extra version information
*/
static void
mr_pass(struct Client *client_p, struct Client *source_p,
int parc, char *parv[])
{
char *password = parv[1];
if (EmptyString(password))
{
sendto_one(client_p, form_str(ERR_NEEDMOREPARAMS),
me.name, EmptyString(parv[0]) ? "*" : parv[0], "PASS");
return;
}
MyFree(client_p->localClient->passwd);
if (strlen(password) > PASSWDLEN)
password[PASSWDLEN] = '\0';
DupString(client_p->localClient->passwd, password);
if (parc > 2)
{
/* It looks to me as if orabidoo wanted to have more
* than one set of option strings possible here...
* i.e. ":AABBTS" as long as TS was the last two chars
* however, as we are now using CAPAB, I think we can
* safely assume if there is a ":TS" then its a TS server
* -Dianora
*/
if (!irccmp(parv[2], "TS") && client_p->tsinfo == 0)
client_p->tsinfo = TS_DOESTS;
}
/* only do this stuff if we are doing ts6 */
if (parc > 4 && me.id[0])
{
if (atoi(parv[3]) >= 6 && valid_sid(parv[4]))
{
strlcpy(client_p->id, parv[4], sizeof(client_p->id));
SetCapable(client_p, CAP_TS6);
}
}
}
/*! \brief PASS 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] = password
* - parv[2] = optional extra version information
* - parv[3] = TS protocol version
* - parv[4] = server ID (SID)
*/
static int
mr_pass(struct Client *source_p, int parc, char *parv[])
{
assert(MyConnect(source_p));
if (EmptyString(parv[1]))
{
sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, "PASS");
return 0;
}
MyFree(source_p->connection->password);
source_p->connection->password = xstrndup(parv[1], IRCD_MIN(strlen(parv[1]), PASSWDLEN));
if (parc > 2)
{
/*
* It looks to me as if orabidoo wanted to have more
* than one set of option strings possible here...
* i.e. ":AABBTS" as long as TS was the last two chars
* however, as we are now using CAPAB, I think we can
* safely assume if there is a ":TS" then it's a TS server
* -Dianora
*/
if (!irccmp(parv[2], "TS") && source_p->tsinfo == 0)
source_p->tsinfo = TS_DOESTS;
}
/* Only do this stuff if we are doing ts6 */
if (parc > 4)
{
if (atoi(parv[3]) >= 6 && valid_sid(parv[4]))
{
strlcpy(source_p->id, parv[4], sizeof(source_p->id));
SetCapable(source_p, CAP_TS6);
}
}
return 0;
}
/*
* mr_capab - CAPAB message handler
* parv[0] = sender prefix
* parv[1] = space-separated list of capabilities
*
*/
static void
mr_capab(struct Client *client_p, struct Client *source_p,
int parc, char *parv[])
{
int i;
int cap;
char *p;
char *s;
#ifdef HAVE_LIBCRYPTO
struct EncCapability *ecap;
unsigned int cipher = 0;
#endif
/* ummm, this shouldn't happen. Could argue this should be logged etc. */
if (client_p->localClient == NULL)
return;
if (client_p->localClient->caps && !(IsCapable(client_p, CAP_TS6)))
{
exit_client(client_p, client_p, "CAPAB received twice");
return;
}
else
SetCapable(client_p, CAP_CAP);
for (i = 1; i < parc; i++)
{
for (s = strtoken(&p, parv[i], " "); s; s = strtoken(&p, NULL, " "))
{
#ifdef HAVE_LIBCRYPTO
if ((strncmp(s, "ENC:", 4) == 0))
{
/* Skip the "ENC:" portion */
s += 4;
/* Check the remaining portion against the list of ciphers we
* have available (CipherTable).
*/
for (ecap = CipherTable; ecap->name; ecap++)
{
if ((irccmp(ecap->name, s) == 0) && (ecap->cap & CAP_ENC_MASK))
{
cipher = ecap->cap;
break;
}
}
/* Since the name and capabilities matched, use it. */
if (cipher != 0)
{
SetCapable(client_p, CAP_ENC);
client_p->localClient->enc_caps |= cipher;
}
else
{
/* cipher is still zero; we didn't find a matching entry. */
exit_client(client_p, client_p,
"Cipher selected is not available here.");
return;
}
}
else /* normal capab */
#endif
if ((cap = find_capability(s)) != 0)
SetCapable(client_p, cap);
}
}
}