/* void report_adns_servers(struct Client *source_p)
* Input: A client to send a list of DNS servers to.
* Output: None
* Side effects: Sends a list of DNS servers to source_p
*/
void report_adns_servers(struct Client *source_p)
{
int x;
char buf[16]; /* XXX: adns only deals with ipv4 dns servers so this is okay */
for(x = 0; x < dns_state->nservers; x++)
{
inetntop(AF_INET, &dns_state->servers[x].addr.s_addr, buf, 16);
sendto_one(source_p, form_str(RPL_STATSALINE), me.name, source_p->name, buf);
}
}
/* void report_adns_servers(struct Client *source_p)
* Input: A client to send a list of DNS servers to.
* Output: None
* Side effects: Sends a list of DNS servers to source_p
*/
void
report_adns_servers(struct Client *source_p)
{
int x;
char buf[16]; /* XXX: adns only deals with ipv4 dns servers so this is okay */
for (x = 0; x < dns_state->nservers; x++)
{
inetntop(AF_INET, &dns_state->servers[x].addr.s_addr, buf, 16);
sendto_one_numeric(source_p, RPL_STATSDEBUG,
"A %s", buf);
}
}
char *get_client_name(aClient *sptr, int showip)
{
static char nbuf[HOSTLEN * 2 + USERLEN + 5];
if (MyConnect(sptr))
{
#ifdef UNIXPORT
if (IsUnixSocket(sptr))
{
if (showip)
sprintf(nbuf, "%s[%s]",
sptr->name, sptr->sockhost);
else
sprintf(nbuf, "%s[%s]",
sptr->name, me.sockhost);
}
else
#endif
{
if (showip)
(void)sprintf(nbuf, "%s[%.*s@%s]",
sptr->name, USERLEN,
(!(sptr->flags & FLAGS_GOTID)) ? "" :
sptr->auth, sptr->user ? sptr->user->sip :
#ifdef INET6
inetntop(AF_INET6,
(char *)&sptr->ip,
ipv6string, sizeof(ipv6string))
#else
inetntoa((char *)&sptr->ip)
#endif
);
else
{
if (mycmp(sptr->name, sptr->sockhost))
/* Show username for clients and
* ident for others.
*/
sprintf(nbuf, "%s[%.*s@%s]",
sptr->name, USERLEN,
IsPerson(sptr) ?
sptr->user->username :
sptr->auth,
IsPerson(sptr) ? sptr->user->host :
sptr->sockhost);
else
return sptr->name;
}
}
return nbuf;
}
return sptr->name;
}
void
remove_ipv6_mapping(struct irc_ssaddr *addr)
{
if (addr->ss.ss_family == AF_INET6)
{
struct sockaddr_in6 *v6;
v6 = (struct sockaddr_in6*)addr;
if (IN6_IS_ADDR_V4MAPPED(&v6->sin6_addr))
{
char v4ip[HOSTIPLEN];
struct sockaddr_in *v4 = (struct sockaddr_in*)addr;
inetntop(AF_INET6, &v6->sin6_addr, v4ip, HOSTIPLEN);
inet_pton(AF_INET, v4ip, &v4->sin_addr);
addr->ss.ss_family = AF_INET;
addr->ss_len = sizeof(struct sockaddr_in);
}
else
addr->ss_len = sizeof(struct sockaddr_in6);
}
else
addr->ss_len = sizeof(struct sockaddr_in);
}
static int
inetport(struct Listener *listener)
{
int fd;
int opt = 1;
/*
* At first, open a new socket
*/
fd = comm_socket(listener->addr.ss_family, SOCK_STREAM, 0, "Listener socket");
#ifdef IPV6
if(listener->addr.ss_family == AF_INET6)
{
struct sockaddr_in6 *in6 = (struct sockaddr_in6 *) &listener->addr;
if(!IN6_ARE_ADDR_EQUAL(&in6->sin6_addr, &in6addr_any))
{
inetntop(AF_INET6, &in6->sin6_addr, listener->vhost,
sizeof(listener->vhost));
listener->name = listener->vhost;
}
}
else
#endif
{
struct sockaddr_in *in = (struct sockaddr_in *) &listener->addr;
if(in->sin_addr.s_addr != INADDR_ANY)
{
inetntop(AF_INET, &in->sin_addr, listener->vhost, sizeof(listener->vhost));
listener->name = listener->vhost;
}
}
if(fd == -1)
{
report_error("opening listener socket %s:%s",
get_listener_name(listener), get_listener_name(listener), errno);
return 0;
}
else if((maxconnections - 10) < fd)
{
report_error("no more connections left for listener %s:%s",
get_listener_name(listener), get_listener_name(listener), errno);
comm_close(fd);
return 0;
}
/*
* XXX - we don't want to do all this crap for a listener
* set_sock_opts(listener);
*/
if(setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char *) &opt, sizeof(opt)))
{
report_error("setting SO_REUSEADDR for listener %s:%s",
get_listener_name(listener), get_listener_name(listener), errno);
comm_close(fd);
return 0;
}
/*
* Bind a port to listen for new connections if port is non-null,
* else assume it is already open and try get something from it.
*/
if(bind(fd, (struct sockaddr *) &listener->addr, GET_SS_LEN(listener->addr)))
{
report_error("binding listener socket %s:%s",
get_listener_name(listener), get_listener_name(listener), errno);
comm_close(fd);
return 0;
}
if(listen(fd, RATBOX_SOMAXCONN))
{
report_error("listen failed for %s:%s",
get_listener_name(listener), get_listener_name(listener), errno);
comm_close(fd);
return 0;
}
listener->fd = fd;
/* Listen completion events are READ events .. */
accept_connection(fd, listener);
return 1;
}
static int
inetport(struct Listener* listener)
{
struct irc_sockaddr lsin;
int fd;
int opt = 1;
/*
* At first, open a new socket
*/
fd = comm_open(DEF_FAM, SOCK_STREAM, 0, "Listener socket");
#ifdef IPV6
if (!IN6_ARE_ADDR_EQUAL((struct in6_addr *)&listener->addr, &in6addr_any))
{
#else
if (INADDR_ANY != listener->addr.sins.sin.s_addr)
{
#endif
inetntop(DEF_FAM, &IN_ADDR(listener->addr), listener->vhost, HOSTLEN);
listener->name = listener->vhost;
}
if (fd == -1)
{
report_error(L_ALL, "opening listener socket %s:%s",
get_listener_name(listener), errno);
return 0;
}
else if ((HARD_FDLIMIT - 10) < fd)
{
report_error(L_ALL, "no more connections left for listener %s:%s",
get_listener_name(listener), errno);
fd_close(fd);
return 0;
}
/*
* XXX - we don't want to do all this crap for a listener
* set_sock_opts(listener);
*/
if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char*) &opt, sizeof(opt)))
{
report_error(L_ALL, "setting SO_REUSEADDR for listener %s:%s",
get_listener_name(listener), errno);
fd_close(fd);
return 0;
}
/*
* Bind a port to listen for new connections if port is non-null,
* else assume it is already open and try get something from it.
*/
memset(&lsin, 0, sizeof(struct irc_sockaddr));
S_FAM(lsin) = DEF_FAM;
copy_s_addr(S_ADDR(lsin), IN_ADDR(listener->addr));
S_PORT(lsin) = htons(listener->port);
if (bind(fd, (struct sockaddr*) &SOCKADDR(lsin),
sizeof(struct irc_sockaddr)))
{
report_error(L_ALL, "binding listener socket %s:%s",
get_listener_name(listener), errno);
fd_close(fd);
return 0;
}
if (listen(fd, HYBRID_SOMAXCONN)) {
report_error(L_ALL, "listen failed for %s:%s",
get_listener_name(listener), errno);
fd_close(fd);
return 0;
}
/*
* XXX - this should always work, performance will suck if it doesn't
*/
if (!set_non_blocking(fd))
report_error(L_ALL, NONB_ERROR_MSG, get_listener_name(listener), errno);
listener->fd = fd;
/* Listen completion events are READ events .. */
accept_connection(fd, listener);
return 1;
}
static struct Listener*
find_listener(int port, struct irc_inaddr *addr)
{
struct Listener* listener = NULL;
struct Listener* last_closed = NULL;
for (listener = ListenerPollList; listener; listener = listener->next)
{
if ( (port == listener->port) &&
(!memcmp(&PIN_ADDR(addr),
&IN_ADDR(listener->addr),
sizeof(struct irc_inaddr))))
{
/* Try to return an open listener, otherwise reuse a closed one */
if (listener->fd == -1)
last_closed = listener;
else
return listener;
}
}
return last_closed;
}
/*
* add_listener- create a new listener
* port - the port number to listen on
* vhost_ip - if non-null must contain a valid IP address string in
* the format "255.255.255.255"
*/
void
add_listener(int port, const char* vhost_ip)
{
struct Listener* listener;
struct irc_inaddr vaddr;
/*
* if no port in conf line, don't bother
*/
if (port == 0)
return;
#ifdef IPV6
copy_s_addr(IN_ADDR(vaddr), &in6addr_any);
#else
copy_s_addr(IN_ADDR(vaddr), INADDR_ANY);
#endif
if (vhost_ip)
{
if(inetpton(DEF_FAM, vhost_ip, &IN_ADDR(vaddr)) <= 0)
return;
}
if ((listener = find_listener(port, &vaddr)))
{
if (listener->fd > -1)
return;
}
else
{
listener = make_listener(port, &vaddr);
listener->next = ListenerPollList;
ListenerPollList = listener;
}
listener->fd = -1;
if (inetport(listener))
listener->active = 1;
else
close_listener(listener);
}
/*
* close_listener - close a single listener
*/
void close_listener(struct Listener* listener)
{
assert(listener != NULL);
if(listener == NULL)
return;
if (listener->fd >= 0)
{
fd_close(listener->fd);
listener->fd = -1;
}
listener->active = 0;
if (listener->ref_count)
return;
free_listener(listener);
}
static int inetport(struct Listener* listener)
{
struct SOCKADDR_IN port_sin;
int fd;
int opt = 1;
/*
* At first, open a new socket
*/
fd = socket(AFINET, SOCK_STREAM, 0);
if (-1 == fd) {
report_error("opening listener socket %s:%s",
get_listener_name(listener), errno);
return 0;
}
else if ((HARD_FDLIMIT - 10) < fd) {
report_error("no more connections left for listener %s:%s",
get_listener_name(listener), errno);
CLOSE(fd);
return 0;
}
/*
* XXX - we don't want to do all this crap for a listener
* set_sock_opts(listener);
*/
if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char*) &opt, sizeof(opt))) {
report_error("setting SO_REUSEADDR for listener %s:%s",
get_listener_name(listener), errno);
CLOSE(fd);
return 0;
}
/*
* Bind a port to listen for new connections if port is non-null,
* else assume it is already open and try get something from it.
*/
memset(&port_sin, 0, sizeof(port_sin));
port_sin.SIN_FAMILY = AFINET;
port_sin.SIN_PORT = htons(listener->port);
#ifdef __CYGWIN__
port_sin.sin_addr = listener->addr;
if (INADDR_ANY != listener->addr.S_ADDR) {
strncpy_irc(listener->vhost, inetntoa((char *)&listener->addr), HOSTLEN);
listener->name = listener->vhost;
}
#else
#ifdef IPV6
bcopy((const char*)listener->addr.S_ADDR, (char*)port_sin.SIN_ADDR.S_ADDR, sizeof(struct IN_ADDR));
if ( bcmp((char*)listener->addr.S_ADDR, &INADDRANY, sizeof(struct IN_ADDR)) == 0 )
#else
port_sin.sin_addr = listener->addr;
if (INADDRANY != listener->addr.s_addr)
#endif
{
struct addrinfo *ans;
int ret;
char port[5];
char tmp[HOSTLEN];
/*
* XXX - blocking call to getaddrinfo
*/
sprintf( port, "%d", listener->port);
#ifdef IPV6
inetntop(AFINET, &listener->addr, tmp, HOSTLEN);
#else
inet_ntop(AF_INET, &listener->addr, tmp, HOSTLEN);
#endif
ret = getaddrinfo(tmp, port, NULL, &ans );
if( ret == 0 && ans->ai_canonname)
strncpy_irc(listener->vhost, ans->ai_canonname, HOSTLEN);
}
#endif
if (bind(fd, (struct sockaddr*) &port_sin, sizeof(port_sin))) {
report_error("binding listener socket %s:%s",
get_listener_name(listener), errno);
CLOSE(fd);
return 0;
}
if (listen(fd, HYBRID_SOMAXCONN)) {
report_error("listen failed for %s:%s",
get_listener_name(listener), errno);
CLOSE(fd);
return 0;
}
/*
* XXX - this should always work, performance will suck if it doesn't
*/
if (!set_non_blocking(fd))
report_error(NONB_ERROR_MSG, get_listener_name(listener), errno);
listener->fd = fd;
return 1;
}
/*
* start_auth
*
* Flag the client to show that an attempt to contact the ident server on
* the client's host. The connect and subsequently the socket are all put
* into 'non-blocking' mode. Should the connect or any later phase of the
* identifing process fail, it is aborted and the user is given a username
* of "unknown".
*/
void start_auth(aClient *cptr)
{
#ifndef NO_IDENT
struct SOCKADDR_IN us, them;
SOCK_LEN_TYPE ulen, tlen;
# if defined(USE_IAUTH)
if ((iauth_options & XOPT_REQUIRED) && adfd < 0)
return;
# endif
Debug((DEBUG_NOTICE,"start_auth(%x) fd %d status %d",
cptr, cptr->fd, cptr->status));
if ((cptr->authfd = socket(AFINET, SOCK_STREAM, 0)) == -1)
{
# ifdef USE_SYSLOG
syslog(LOG_ERR, "Unable to create auth socket for %s:%m",
get_client_name(cptr,TRUE));
# endif
Debug((DEBUG_ERROR, "Unable to create auth socket for %s:%s",
get_client_name(cptr, TRUE),
strerror(get_sockerr(cptr))));
ircstp->is_abad++;
return;
}
if (cptr->authfd >= (MAXCONNECTIONS - 2))
{
sendto_flag(SCH_ERROR, "Can't allocate fd for auth on %s",
get_client_name(cptr, TRUE));
(void)close(cptr->authfd);
return;
}
set_non_blocking(cptr->authfd, cptr);
/* get remote host peer - so that we get right interface -- jrg */
tlen = ulen = sizeof(us);
if (getpeername(cptr->fd, (struct sockaddr *)&them, &tlen) < 0)
{
/* we probably don't need this error message -kalt */
report_error("getpeername for auth request %s:%s", cptr);
close(cptr->authfd);
cptr->authfd = -1;
return;
}
them.SIN_FAMILY = AFINET;
/* We must bind the local end to the interface that they connected
to: The local system might have more than one network address,
and RFC931 check only sends port numbers: server takes IP addresses
from query socket -- jrg */
(void)getsockname(cptr->fd, (struct sockaddr *)&us, &ulen);
us.SIN_FAMILY = AFINET;
# if defined(USE_IAUTH)
if (adfd >= 0)
{
char abuf[BUFSIZ];
# ifdef INET6
sprintf(abuf, "%d C %s %u ", cptr->fd,
inetntop(AF_INET6, (char *)&them.sin6_addr, ipv6string,
sizeof(ipv6string)), ntohs(them.SIN_PORT));
sprintf(abuf+strlen(abuf), "%s %u",
inetntop(AF_INET6, (char *)&us.sin6_addr, ipv6string,
sizeof(ipv6string)), ntohs(us.SIN_PORT));
# else
sprintf(abuf, "%d C %s %u ", cptr->fd,
inetntoa((char *)&them.sin_addr),ntohs(them.SIN_PORT));
sprintf(abuf+strlen(abuf), "%s %u",
inetntoa((char *)&us.sin_addr), ntohs(us.SIN_PORT));
# endif
if (sendto_iauth(abuf) == 0)
{
close(cptr->authfd);
cptr->authfd = -1;
cptr->flags |= FLAGS_XAUTH;
return;
}
}
# endif
# ifdef INET6
Debug((DEBUG_NOTICE,"auth(%x) from %s %x %x",
cptr, inet_ntop(AF_INET6, (char *)&us.sin6_addr, ipv6string,
sizeof(ipv6string)), us.sin6_addr.s6_addr[14],
us.sin6_addr.s6_addr[15]));
# else
Debug((DEBUG_NOTICE,"auth(%x) from %s",
cptr, inetntoa((char *)&us.sin_addr)));
# endif
them.SIN_PORT = htons(113);
us.SIN_PORT = htons(0); /* bind assigns us a port */
if (bind(cptr->authfd, (struct SOCKADDR *)&us, ulen) >= 0)
{
(void)getsockname(cptr->fd, (struct SOCKADDR *)&us, &ulen);
# ifdef INET6
Debug((DEBUG_NOTICE,"auth(%x) to %s",
cptr, inet_ntop(AF_INET6, (char *)&them.sin6_addr,
ipv6string, sizeof(ipv6string))));
# else
Debug((DEBUG_NOTICE,"auth(%x) to %s",
cptr, inetntoa((char *)&them.sin_addr)));
# endif
(void)alarm((unsigned)4);
if (connect(cptr->authfd, (struct SOCKADDR *)&them,
tlen) == -1 && errno != EINPROGRESS)
{
# ifdef INET6
Debug((DEBUG_ERROR,
"auth(%x) connect failed to %s - %d", cptr,
inet_ntop(AF_INET6, (char *)&them.sin6_addr,
ipv6string, sizeof(ipv6string)), errno));
# else
Debug((DEBUG_ERROR,
"auth(%x) connect failed to %s - %d", cptr,
inetntoa((char *)&them.sin_addr), errno));
# endif
ircstp->is_abad++;
/*
* No error report from this...
*/
(void)alarm((unsigned)0);
(void)close(cptr->authfd);
cptr->authfd = -1;
return;
}
(void)alarm((unsigned)0);
}
else
{
report_error("binding stream socket for auth request %s:%s",
cptr);
# ifdef INET6
Debug((DEBUG_ERROR,"auth(%x) bind failed on %s port %d - %d",
cptr, inet_ntop(AF_INET6, (char *)&us.sin6_addr,
ipv6string, sizeof(ipv6string)),
ntohs(us.SIN_PORT), errno));
# else
Debug((DEBUG_ERROR,"auth(%x) bind failed on %s port %d - %d",
cptr, inetntoa((char *)&us.sin_addr),
ntohs(us.SIN_PORT), errno));
# endif
}
cptr->flags |= (FLAGS_WRAUTH|FLAGS_AUTH);
if (cptr->authfd > highest_fd)
highest_fd = cptr->authfd;
#endif
return;
}
/*
* read_iauth
*
* read and process data from the authentication slave process.
*/
void read_iauth(void)
{
static char obuf[READBUF_SIZE+1], last = '?';
static int olen = 0, ia_dbg = 0;
char buf[READBUF_SIZE+1], *start, *end, tbuf[BUFSIZ];
aClient *cptr;
int i;
if (adfd == -1)
{
olen = 0;
return;
}
while (1)
{
if (olen)
bcopy(obuf, buf, olen);
if ((i = recv(adfd, buf+olen, READBUF_SIZE-olen, 0)) <= 0)
{
if (errno != EAGAIN && errno != EWOULDBLOCK)
{
sendto_flag(SCH_AUTH, "Aiiie! lost slave authentication process (errno = %d)", errno);
close(adfd);
adfd = -1;
olen = 0;
start_iauth(0);
}
break;
}
olen += i;
buf[olen] = '\0';
start = buf;
while ((end = index(start, '\n')))
{
*end++ = '\0';
last = *start;
if (*start == '>')
{
sendto_flag(SCH_AUTH, "%s", start+1);
start = end;
continue;
}
if (*start == 'G')
{
ia_dbg = atoi(start+2);
if (ia_dbg)
sendto_flag(SCH_AUTH,"ia_dbg = %d",ia_dbg);
start = end;
continue;
}
if (*start == 'O') /* options */
{
iauth_options = 0;
if (strchr(start+2, 'A'))
iauth_options |= XOPT_EARLYPARSE;
if (strchr(start+2, 'R'))
iauth_options |= XOPT_REQUIRED;
if (strchr(start+2, 'T'))
iauth_options |= XOPT_NOTIMEOUT;
if (strchr(start+2, 'W'))
iauth_options |= XOPT_EXTWAIT;
if (iauth_options)
sendto_flag(SCH_AUTH, "iauth options: %x",
iauth_options);
start = end;
continue;
}
if (*start == 'V') /* version */
{
if (iauth_version)
MyFree(iauth_version);
iauth_version = mystrdup(start+2);
sendto_flag(SCH_AUTH, "iauth version %s running.",
iauth_version);
start = end;
sendto_iauth("0 M %s", me.name);
continue;
}
if (*start == 'a')
{
aExtCf *ectmp;
while ((ectmp = iauth_conf))
{
iauth_conf = iauth_conf->next;
MyFree(ectmp->line);
MyFree(ectmp);
}
/* little lie.. ;) */
sendto_flag(SCH_AUTH, "New iauth configuration.");
start = end;
continue;
}
if (*start == 'A')
{
aExtCf **ectmp = &iauth_conf;
while (*ectmp)
ectmp = &((*ectmp)->next);
*ectmp = (aExtCf *) MyMalloc(sizeof(aExtCf));
(*ectmp)->line = mystrdup(start+2);
(*ectmp)->next = NULL;
start = end;
continue;
}
if (*start == 's')
{
aExtData *ectmp;
while ((ectmp = iauth_stats))
{
iauth_stats = iauth_stats->next;
MyFree(ectmp->line);
MyFree(ectmp);
}
iauth_stats = (aExtData *)
MyMalloc(sizeof(aExtData));
iauth_stats->line = MyMalloc(60);
sprintf(iauth_stats->line,
"iauth modules statistics (%s)",
myctime(timeofday));
iauth_stats->next = (aExtData *)
MyMalloc(sizeof(aExtData));
iauth_stats->next->line = MyMalloc(60);
sprintf(iauth_stats->next->line,
"spawned: %d, current options: %X (%.11s)",
iauth_spawn, iauth_options,
(iauth_version) ? iauth_version : "???");
iauth_stats->next->next = NULL;
start = end;
continue;
}
if (*start == 'S')
{
aExtData **ectmp = &iauth_stats;
while (*ectmp)
ectmp = &((*ectmp)->next);
*ectmp = (aExtData *) MyMalloc(sizeof(aExtData));
(*ectmp)->line = mystrdup(start+2);
(*ectmp)->next = NULL;
start = end;
continue;
}
if (*start != 'U' && *start != 'u' && *start != 'o' &&
*start != 'K' && *start != 'k' &&
*start != 'D')
{
sendto_flag(SCH_AUTH, "Garbage from iauth [%s]",
start);
sendto_iauth("-1 E Garbage [%s]", start);
/*
** The above should never happen, but i've seen it
** occasionnally, so let's try to get more info
** about it! -kalt
*/
sendto_flag(SCH_AUTH,
"last=%u start=%x end=%x buf=%x olen=%d i=%d",
last, start, end, buf, olen, i);
sendto_iauth(
"-1 E last=%u start=%x end=%x buf=%x olen=%d i=%d",
last, start, end, buf, olen, i);
start = end;
continue;
}
if ((cptr = local[i = atoi(start+2)]) == NULL)
{
/* this is fairly common and can be ignored */
if (ia_dbg)
{
sendto_flag(SCH_AUTH, "Client %d is gone.",
i);
sendto_iauth("%d E Gone [%s]", i, start);
}
start = end;
continue;
}
#ifndef INET6
sprintf(tbuf, "%c %d %s %u ", start[0], i,
inetntoa((char *)&cptr->ip), cptr->port);
#else
sprintf(tbuf, "%c %d %s %u ", start[0], i,
inetntop(AF_INET6, (char *)&cptr->ip,
ipv6string, sizeof(ipv6string)), cptr->port);
#endif
if (strncmp(tbuf, start, strlen(tbuf)))
{
/* this is fairly common and can be ignored */
if (ia_dbg)
{
sendto_flag(SCH_AUTH,
"Client mismatch: %d [%s] != [%s]",
i, start, tbuf);
sendto_iauth("%d E Mismatch [%s] != [%s]",
i, start, tbuf);
}
start = end;
continue;
}
if (start[0] == 'U')
{
if (*(start+strlen(tbuf)) == '\0')
{
sendto_flag(SCH_AUTH,
"Null U message! %d [%s]",
i, start);
sendto_iauth("%d E Null U [%s]", i, start);
start = end;
continue;
}
if (cptr->auth != cptr->username)
{
istat.is_authmem -= strlen(cptr->auth) + 1;
istat.is_auth -= 1;
MyFree(cptr->auth);
}
cptr->auth = mystrdup(start+strlen(tbuf));
set_clean_username(cptr);
cptr->flags |= FLAGS_GOTID;
}
else if (start[0] == 'u')
{
if (*(start+strlen(tbuf)) == '\0')
{
sendto_flag(SCH_AUTH,
"Null u message! %d [%s]",
i, start);
sendto_iauth("%d E Null u [%s]", i, start);
start = end;
continue;
}
if (cptr->auth != cptr->username)
{
istat.is_authmem -= strlen(cptr->auth) + 1;
istat.is_auth -= 1;
MyFree(cptr->auth);
}
cptr->auth = MyMalloc(strlen(start+strlen(tbuf))
+ 2);
*cptr->auth = '-';
strcpy(cptr->auth+1, start+strlen(tbuf));
set_clean_username(cptr);
cptr->flags |= FLAGS_GOTID;
}
else if (start[0] == 'o')
{
if (!WaitingXAuth(cptr))
{
sendto_flag(SCH_AUTH,
"Early o message discarded!");
sendto_iauth("%d E Early o [%s]", i,start);
start = end;
continue;
}
if (cptr->user == NULL)
{
/* just to be safe */
sendto_flag(SCH_AUTH,
"Ack! cptr->user is NULL");
start = end;
continue;
}
strncpyzt(cptr->user->username, tbuf, USERLEN+1);
}
else if (start[0] == 'D')
{
/*authentication finished*/
ClearXAuth(cptr);
SetDoneXAuth(cptr);
if (WaitingXAuth(cptr))
{
ClearWXAuth(cptr);
register_user(cptr, cptr, cptr->name,
cptr->user->username);
}
else
ClearWXAuth(cptr);
}
else
{
char *reason;
/* Copy kill reason received from iauth */
reason = strstr(start, " :");
if (reason && (reason + 2 != '\0'))
{
if (cptr->reason)
{
MyFree(cptr->reason);
}
cptr->reason = mystrdup(reason + 2);
}
/*
** mark for kill, because it cannot be killed
** yet: we don't even know if this is a server
** or a user connection!
*/
if (start[0] == 'K')
cptr->exitc = EXITC_AREF;
else
cptr->exitc = EXITC_AREFQ;
/* should also check to make sure it's still
an unregistered client.. */
/* Finally, working after registration. --B. */
if (IsRegisteredUser(cptr))
{
if (cptr->exitc == EXITC_AREF)
{
sendto_flag(SCH_LOCAL,
"Denied after connection "
"from %s.",
get_client_host(cptr));
}
(void) exit_client(cptr, cptr, &me,
cptr->reason ? cptr->reason :
"Denied access");
}
}
start = end;
}
olen -= start - buf;
if (olen)
memcpy(obuf, start, olen);
}
}
