/*
* IRC - Internet Relay Chat, ircd/shun.c
* Copyright (C) 1990 Jarkko Oikarinen and
* University of Oulu, Finland
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 1, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* $Id: shun.c 1686 2006-07-24 04:46:23Z sirvulcan $
*/
#include "config.h"
#include "shun.h"
#include "channel.h"
#include "client.h"
#include "hash.h"
#include "ircd.h"
#include "ircd_alloc.h"
#include "ircd_features.h"
#include "ircd_log.h"
#include "ircd_reply.h"
#include "ircd_snprintf.h"
#include "ircd_string.h"
#include "match.h"
#include "numeric.h"
#include "s_bsd.h"
#include "s_debug.h"
#include "s_misc.h"
#include "s_stats.h"
#include "send.h"
#include "ircd_struct.h"
#include "support.h"
#include "msg.h"
#include "numnicks.h"
#include "numeric.h"
#include "sys.h" /* FALSE bleah */
#include "whocmds.h"
#include <assert.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <arpa/inet.h> /* for inet_ntoa */
#define CHECK_APPROVED 0 /* Mask is acceptable */
#define CHECK_OVERRIDABLE 1 /* Mask is acceptable, but not by default */
#define CHECK_REJECTED 2 /* Mask is totally unacceptable */
#define MASK_WILD_0 0x01 /* Wildcards in the last position */
#define MASK_WILD_1 0x02 /* Wildcards in the next-to-last position */
#define MASK_WILD_MASK 0x03 /* Mask out the positional wildcards */
#define MASK_WILDS 0x10 /* Mask contains wildcards */
#define MASK_IP 0x20 /* Mask is an IP address */
#define MASK_HALT 0x40 /* Finished processing mask */
struct Shun* GlobalShunList = 0;
static void
canon_userhost(char *userhost, char **user_p, char **host_p, char *def_user)
{
char *tmp;
if (*userhost == '$') {
*user_p = userhost;
*host_p = NULL;
return;
}
if (!(tmp = strchr(userhost, '@'))) {
*user_p = def_user;
*host_p = userhost;
} else {
*user_p = userhost;
*(tmp++) = '\0';
*host_p = tmp;
}
}
static struct Shun *
make_shun(char *user, char *host, char *reason, time_t expire, time_t lastmod,
unsigned int flags)
{
struct Shun *shun, *sshun, *after = 0;
for (shun = GlobalShunList; shun; shun = sshun) {
sshun = shun->sh_next;
if (shun->sh_expire <= CurrentTime)
shun_free(shun);
else if (((shun->sh_flags & SHUN_LOCAL) != (flags & SHUN_LOCAL)) ||
(shun->sh_host && !host) || (!shun->sh_host && host))
continue;
else if (!mmatch(shun->sh_user, user) /* shun contains new mask */
&& (shun->sh_host == NULL || !mmatch(shun->sh_host, host))) {
if (expire <= shun->sh_expire) /* will expire before wider shun */
return 0;
else
after = shun; /* stick new shun after this one */
} else if (!mmatch(user, shun->sh_user) /* new mask contains shun */
&& (shun->sh_host==NULL || !mmatch(host, shun->sh_host))
&& shun->sh_expire <= expire) /* old expires before new */
shun_free(shun); /* save some memory */
}
shun = (struct Shun *)MyMalloc(sizeof(struct Shun)); /* alloc memory */
assert(0 != shun);
DupString(shun->sh_reason, reason); /* initialize shun... */
shun->sh_expire = expire;
shun->sh_lastmod = lastmod;
shun->sh_flags = flags & SHUN_MASK;
DupString(shun->sh_user, user); /* remember them... */
if (*user!='$')
DupString(shun->sh_host, host);
else
shun->sh_host = 0;
if (*user!='$' && check_if_ipmask(host)) { /* mark if it's an IP mask */
int class;
char ipname[16];
int ad[4] = { 0 };
int bits2 = 0;
char *ch;
int seenwild;
int badmask=0;
/* Sanity check for dodgy IP masks
* Any mask featuring a digit after a wildcard will
* not behave as expected. */
for (seenwild=0,ch=host;*ch;ch++) {
if (*ch=='*' || *ch=='?')
seenwild=1;
if (IsDigit(*ch) && seenwild) {
badmask=1;
break;
}
}
if (badmask) {
/* It's bad - let's make it match 0.0.0.0/32 */
shun->bits=32;
shun->ipnum.s_addr=0;
} else {
class = sscanf(host,"%d.%d.%d.%d/%d",
&ad[0],&ad[1],&ad[2],&ad[3], &bits2);
if (class!=5) {
shun->bits=class*8;
}
else {
shun->bits=bits2;
}
ircd_snprintf(0, ipname, sizeof(ipname), "%d.%d.%d.%d", ad[0], ad[1],
ad[2], ad[3]);
shun->ipnum.s_addr = inet_addr(ipname);
}
Debug((DEBUG_DEBUG,"IP shun: %08x/%i",shun->ipnum.s_addr,shun->bits));
shun->sh_flags |= SHUN_IPMASK;
}
if (after) {
shun->sh_next = after->sh_next;
shun->sh_prev_p = &after->sh_next;
if (after->sh_next)
after->sh_next->sh_prev_p = &shun->sh_next;
after->sh_next = shun;
} else {
shun->sh_next = GlobalShunList; /* then link it into list */
shun->sh_prev_p = &GlobalShunList;
if (GlobalShunList)
GlobalShunList->sh_prev_p = &shun->sh_next;
GlobalShunList = shun;
}
return shun;
}
static int
do_shun(struct Client *cptr, struct Client *sptr, struct Shun *shun)
{
struct Client *acptr;
int fd, tval = 0;
if (!ShunIsActive(shun)) /* no action taken on inactive shuns */
return 0;
for (fd = HighestFd; fd >= 0; --fd) {
/*
* get the users!
*/
if ((acptr = LocalClientArray[fd])) {
if (!cli_user(acptr))
continue;
if (shun->sh_flags & SHUN_REALNAME) { /* Realname Shun */
Debug((DEBUG_DEBUG,"Realname Shun: %s %s",(cli_info(acptr)),
shun->sh_user+2));
if (match(shun->sh_user+2, cli_info(acptr)) != 0)
continue;
Debug((DEBUG_DEBUG,"Matched!"));
} else { /* Host/IP shun */
if (cli_user(acptr)->username &&
match (shun->sh_user, (cli_user(acptr))->realusername) != 0)
continue;
if (ShunIsIpMask(shun)) {
Debug((DEBUG_DEBUG,"IP shun: %08x %08x/%i",(cli_ip(cptr)).s_addr,
shun->ipnum.s_addr,shun->bits));
if (((cli_ip(acptr)).s_addr & NETMASK(shun->bits))
!= shun->ipnum.s_addr)
continue;
}
else {
if (match(shun->sh_host, cli_sockhost(acptr)) != 0)
continue;
}
} /* of Host/IP Shun */
/* ok, here's one that got Shunned */
if (!feature_bool(FEAT_HIS_SHUN_REASON))
sendcmdto_one(&me, CMD_NOTICE, acptr, "%C :You are shunned: %s", acptr,
shun->sh_reason);
/* let the ops know about it */
sendto_opmask_butone(0, SNO_GLINE, "Shun active for %s",
get_client_name(acptr, TRUE));
/* and mark him */
ircd_snprintf(0, cli_user(acptr)->shunreason, sizeof(cli_user(acptr)->shunreason), "%s", shun->sh_reason);
tval = 1;
}
}
return tval;
}
/*
* This routine implements the mask checking applied to local
* Shuns. Basically, host masks must have a minimum of two non-wild
* domain fields, and IP masks must have a minimum of 16 bits. If the
* mask has even one wild-card, OVERRIDABLE is returned, assuming the
* other check doesn't fail.
*/
static int
shun_checkmask(char *mask)
{
unsigned int flags = MASK_IP;
unsigned int dots = 0;
unsigned int ipmask = 0;
for (; *mask; mask++) { /* go through given mask */
if (*mask == '.') { /* it's a separator; advance positional wilds */
flags = (flags & ~MASK_WILD_MASK) | ((flags << 1) & MASK_WILD_MASK);
dots++;
if ((flags & (MASK_IP | MASK_WILDS)) == MASK_IP)
ipmask += 8; /* It's an IP with no wilds, count bits */
} else if (*mask == '*' || *mask == '?')
flags |= MASK_WILD_0 | MASK_WILDS; /* found a wildcard */
else if (*mask == '/') { /* n.n.n.n/n notation; parse bit specifier */
mask++;
ipmask = strtoul(mask, &mask, 10);
if (*mask || dots != 3 || ipmask > 32 || /* sanity-check to date */
(flags & (MASK_WILDS | MASK_IP)) != MASK_IP)
return CHECK_REJECTED; /* how strange... */
if (ipmask < 32) /* it's a masked address; mark wilds */
flags |= MASK_WILDS;
flags |= MASK_HALT; /* Halt the ipmask calculation */
break; /* get out of the loop */
} else if (!IsDigit(*mask)) {
flags &= ~MASK_IP; /* not an IP anymore! */
ipmask = 0;
}
}
/* Sanity-check quads */
if (dots > 3 || (!(flags & MASK_WILDS) && dots < 3)) {
flags &= ~MASK_IP;
ipmask = 0;
}
/* update bit count if necessary */
if ((flags & (MASK_IP | MASK_WILDS | MASK_HALT)) == MASK_IP)
ipmask += 8;
/* Check to see that it's not too wide of a mask */
if (flags & MASK_WILDS &&
((!(flags & MASK_IP) && (dots < 2 || flags & MASK_WILD_MASK)) ||
(flags & MASK_IP && ipmask < 16)))
return CHECK_REJECTED; /* to wide, reject */
/* Ok, it's approved; require override if it has wildcards, though */
return flags & MASK_WILDS ? CHECK_OVERRIDABLE : CHECK_APPROVED;
}
int
shun_propagate(struct Client *cptr, struct Client *sptr, struct Shun *shun)
{
if (ShunIsLocal(shun) || (IsUser(sptr) && !shun->sh_lastmod))
return 0;
if (shun->sh_lastmod)
sendcmdto_serv_butone(sptr, CMD_SHUN, cptr, "* %c%s%s%s %Tu %Tu :%s",
ShunIsRemActive(shun) ? '+' : '-', shun->sh_user,
shun->sh_host ? "@" : "",
shun->sh_host ? shun->sh_host : "",
shun->sh_expire - CurrentTime, shun->sh_lastmod,
shun->sh_reason);
else
sendcmdto_serv_butone(sptr, CMD_SHUN, cptr,
(ShunIsRemActive(shun) ?
"* +%s%s%s %Tu :%s" : "* -%s%s%s"),
shun->sh_user,
shun->sh_host ? "@" : "",
shun->sh_host ? shun->sh_host : "",
shun->sh_expire - CurrentTime, shun->sh_reason);
return 0;
}
int
shun_add(struct Client *cptr, struct Client *sptr, char *userhost,
char *reason, time_t expire, time_t lastmod, unsigned int flags)
{
struct Shun *ashun;
char uhmask[USERLEN + HOSTLEN + 2];
char *user, *host;
int tmp;
assert(0 != userhost);
assert(0 != reason);
if (*userhost == '$' || userhost[2] == '$') {
switch (*userhost == '$' ? userhost[1] : userhost[3]) {
case 'R': flags |= SHUN_REALNAME; break;
default:
/* uh, what to do here? */
/* The answer, my dear Watson, is we throw a protocol_violation()
-- hikari */
return protocol_violation(sptr,"%s has sent an incorrect shun.",cli_name(sptr));
break;
}
user = (*userhost =='$' ? userhost : userhost+2);
host = 0;
} else {
canon_userhost(userhost, &user, &host, "*");
if (sizeof(uhmask) <
ircd_snprintf(0, uhmask, sizeof(uhmask), "%s@%s", user, host))
return send_reply(sptr, ERR_LONGMASK);
else if (MyUser(sptr) || (IsUser(sptr) && flags & SHUN_LOCAL)) {
switch (shun_checkmask(host)) {
case CHECK_OVERRIDABLE: /* oper overrided restriction */
if (flags & SHUN_OPERFORCE)
break;
/*FALLTHROUGH*/
case CHECK_REJECTED:
return send_reply(sptr, ERR_MASKTOOWIDE, uhmask);
break;
}
if ((tmp = count_users(uhmask)) >=
feature_int(FEAT_SHUNMAXUSERCOUNT) && !(flags & SHUN_OPERFORCE))
return send_reply(sptr, ERR_TOOMANYUSERS, tmp);
}
}
/*
* You cannot set a negative (or zero) expire time, nor can you set an
* expiration time for greater than SHUN_MAX_EXPIRE.
*/
if (!(flags & SHUN_FORCE) && (expire <= 0 || expire > SHUN_MAX_EXPIRE)) {
if (!IsServer(sptr) && MyConnect(sptr))
send_reply(sptr, ERR_BADEXPIRE, expire);
return 0;
}
expire += CurrentTime; /* convert from lifetime to timestamp */
/* Inform ops... */
sendto_opmask_butone(0, ircd_strncmp(reason, "AUTO", 4) ? SNO_GLINE :
SNO_AUTO, "%s adding %s SHUN for %s%s%s, expiring at "
"%Tu: %s",
feature_bool(FEAT_HIS_SNOTICES) || IsServer(sptr) ?
cli_name(sptr) : cli_name((cli_user(sptr))->server),
flags & SHUN_LOCAL ? "local" : "global", user,
flags & (SHUN_REALNAME) ? "" : "@",
flags & (SHUN_REALNAME) ? "" : host,
expire + TSoffset, reason);
/* and log it */
log_write(LS_GLINE, L_INFO, LOG_NOSNOTICE,
"%#C adding %s %s for %s%s%s, expiring at %Tu: %s", sptr,
flags & SHUN_LOCAL ? "local" : "global", user,
flags & (SHUN_REALNAME) ? "" : "@",
flags & (SHUN_REALNAME) ? "" : host,
expire + TSoffset, reason);
/* make the shun */
ashun = make_shun(user, host, reason, expire, lastmod, flags);
if (!ashun) /* if it overlapped, silently return */
return 0;
shun_propagate(cptr, sptr, ashun);
return do_shun(cptr, sptr, ashun); /* knock off users if necessary */
}
int
shun_activate(struct Client *cptr, struct Client *sptr, struct Shun *shun,
time_t lastmod, unsigned int flags)
{
unsigned int saveflags = 0;
assert(0 != shun);
saveflags = shun->sh_flags;
if (flags & SHUN_LOCAL)
shun->sh_flags &= ~SHUN_LDEACT;
else {
shun->sh_flags |= SHUN_ACTIVE;
if (shun->sh_lastmod) {
if (shun->sh_lastmod >= lastmod) /* force lastmod to increase */
shun->sh_lastmod++;
else
shun->sh_lastmod = lastmod;
}
}
if ((saveflags & SHUN_ACTMASK) == SHUN_ACTIVE)
return 0; /* was active to begin with */
/* Inform ops and log it */
sendto_opmask_butone(0, SNO_GLINE, "%s activating global SHUN for %s%s%s, "
"expiring at %Tu: %s",
feature_bool(FEAT_HIS_SNOTICES) || IsServer(sptr) ?
cli_name(sptr) : cli_name((cli_user(sptr))->server),
shun->sh_user, shun->sh_host ? "@" : "",
shun->sh_host ? shun->sh_host : "",
shun->sh_expire + TSoffset, shun->sh_reason);
log_write(LS_GLINE, L_INFO, LOG_NOSNOTICE,
"%#C activating global SHUN for %s%s%s, expiring at %Tu: %s", sptr,
shun->sh_user,
shun->sh_host ? "@" : "",
shun->sh_host ? shun->sh_host : "",
shun->sh_expire + TSoffset, shun->sh_reason);
if (!(flags & SHUN_LOCAL)) /* don't propagate local changes */
shun_propagate(cptr, sptr, shun);
return do_shun(cptr, sptr, shun);
}
int
shun_deactivate(struct Client *cptr, struct Client *sptr, struct Shun *shun,
time_t lastmod, unsigned int flags)
{
unsigned int saveflags = 0;
char *msg;
assert(0 != shun);
saveflags = shun->sh_flags;
if (ShunIsLocal(shun))
msg = "removing local";
else if (!shun->sh_lastmod && !(flags & SHUN_LOCAL)) {
msg = "removing global";
shun->sh_flags &= ~SHUN_ACTIVE; /* propagate a -<mask> */
} else {
msg = "deactivating global";
if (flags & SHUN_LOCAL)
shun->sh_flags |= SHUN_LDEACT;
else {
shun->sh_flags &= ~SHUN_ACTIVE;
if (shun->sh_lastmod) {
if (shun->sh_lastmod >= lastmod)
shun->sh_lastmod++;
else
shun->sh_lastmod = lastmod;
}
}
if ((saveflags & SHUN_ACTMASK) != SHUN_ACTIVE)
return 0; /* was inactive to begin with */
}
/* Inform ops and log it */
sendto_opmask_butone(0, SNO_GLINE, "%s %s %s for %s%s%s, expiring at %Tu: "
"%s",
feature_bool(FEAT_HIS_SNOTICES) || IsServer(sptr) ?
cli_name(sptr) : cli_name((cli_user(sptr))->server),
msg, "SHUN",
shun->sh_user, shun->sh_host ? "@" : "",
shun->sh_host ? shun->sh_host : "",
shun->sh_expire + TSoffset, shun->sh_reason);
log_write(LS_GLINE, L_INFO, LOG_NOSNOTICE,
"%#C %s %s for %s%s%s, expiring at %Tu: %s", sptr, msg,
"SHUN", shun->sh_user,
shun->sh_host ? "@" : "",
shun->sh_host ? shun->sh_host : "",
shun->sh_expire + TSoffset, shun->sh_reason);
if (!(flags & SHUN_LOCAL)) /* don't propagate local changes */
shun_propagate(cptr, sptr, shun);
/* if it's a local shun or a Uworld shun (and not locally deactivated).. */
if (ShunIsLocal(shun) || (!shun->sh_lastmod && !(flags & SHUN_LOCAL)))
shun_free(shun); /* get rid of it */
return 0;
}
struct Shun *
shun_find(char *userhost, unsigned int flags)
{
struct Shun *shun;
struct Shun *sshun;
char *user, *host, *t_uh;
DupString(t_uh, userhost);
canon_userhost(t_uh, &user, &host, 0);
if(BadPtr(user))
return 0;
for (shun = GlobalShunList; shun; shun = sshun) {
sshun = shun->sh_next;
if (shun->sh_expire <= CurrentTime)
shun_free(shun);
else if ((flags & SHUN_GLOBAL && shun->sh_flags & SHUN_LOCAL) ||
(flags & SHUN_LASTMOD && !shun->sh_lastmod))
continue;
else if (flags & SHUN_EXACT) {
if (((shun->sh_host && host && ircd_strcmp(shun->sh_host,host) == 0)
||(!shun->sh_host && !host)) &&
((!user && ircd_strcmp(shun->sh_user, "*") == 0) ||
ircd_strcmp(shun->sh_user, user) == 0))
break;
} else {
if (((shun->sh_host && host && ircd_strcmp(shun->sh_host,host) == 0)
||(!shun->sh_host && !host)) &&
((!user && ircd_strcmp(shun->sh_user, "*") == 0) ||
match(shun->sh_user, user) == 0))
break;
}
}
if (!BadPtr(t_uh))
MyFree(t_uh);
return shun;
}
struct Shun *
shun_lookup(struct Client *cptr, unsigned int flags)
{
struct Shun *shun;
struct Shun *sshun;
for (shun = GlobalShunList; shun; shun = sshun) {
sshun = shun->sh_next;
if (shun->sh_expire <= CurrentTime) {
shun_free(shun);
continue;
}
if ((flags & SHUN_GLOBAL && shun->sh_flags & SHUN_LOCAL) ||
(flags & SHUN_LASTMOD && !shun->sh_lastmod))
continue;
if (ShunIsRealName(shun)) {
Debug((DEBUG_DEBUG,"realname shun: '%s' '%s'",shun->sh_user,cli_info(cptr)));
if (match(shun->sh_user+2, cli_info(cptr)) != 0)
continue;
if (!ShunIsActive(shun))
continue;
return shun;
}
else {
if (match(shun->sh_user, (cli_user(cptr))->realusername) != 0)
continue;
if (ShunIsIpMask(shun)) {
Debug((DEBUG_DEBUG,"IP shun: %08x %08x/%i",(cli_ip(cptr)).s_addr,shun->ipnum.s_addr,shun->bits));
if (((cli_ip(cptr)).s_addr & NETMASK(shun->bits)) != shun->ipnum.s_addr)
continue;
}
else {
if (match(shun->sh_host, (cli_user(cptr))->realhost) != 0)
continue;
}
}
if (ShunIsActive(shun))
return shun;
}
/*
* No Shuns matched
*/
return 0;
}
void
shun_free(struct Shun *shun)
{
assert(0 != shun);
*shun->sh_prev_p = shun->sh_next; /* squeeze this shun out */
if (shun->sh_next)
shun->sh_next->sh_prev_p = shun->sh_prev_p;
MyFree(shun->sh_user); /* free up the memory */
if (shun->sh_host)
MyFree(shun->sh_host);
MyFree(shun->sh_reason);
MyFree(shun);
}
void
shun_burst(struct Client *cptr)
{
struct Shun *shun;
struct Shun *sshun;
for (shun = GlobalShunList; shun; shun = sshun) { /* all shuns */
sshun = shun->sh_next;
if (shun->sh_expire <= CurrentTime) /* expire any that need expiring */
shun_free(shun);
else if (!ShunIsLocal(shun) && shun->sh_lastmod)
sendcmdto_one(&me, CMD_SHUN, cptr, "* %c%s%s%s %Tu %Tu :%s",
ShunIsRemActive(shun) ? '+' : '-', shun->sh_user,
shun->sh_host ? "@" : "",
shun->sh_host ? shun->sh_host : "",
shun->sh_expire - CurrentTime, shun->sh_lastmod,
shun->sh_reason);
}
}
int
shun_resend(struct Client *cptr, struct Shun *shun)
{
if (ShunIsLocal(shun) || !shun->sh_lastmod)
return 0;
sendcmdto_one(&me, CMD_SHUN, cptr, "* %c%s%s%s %Tu %Tu :%s",
ShunIsRemActive(shun) ? '+' : '-', shun->sh_user,
shun->sh_host ? "@" : "",
shun->sh_host ? shun->sh_host : "",
shun->sh_expire - CurrentTime, shun->sh_lastmod,
shun->sh_reason);
return 0;
}
int
shun_list(struct Client *sptr, char *userhost)
{
struct Shun *shun;
struct Shun *sshun;
if (userhost) {
if (!(shun = shun_find(userhost, SHUN_ANY))) /* no such shun */
return send_reply(sptr, ERR_NOSUCHSHUN, userhost);
/* send shun information along */
send_reply(sptr, RPL_SLIST, shun->sh_user, "",
shun->sh_host ? shun->sh_host : "",
shun->sh_expire + TSoffset,
ShunIsLocal(shun) ? cli_name(&me) : "*",
ShunIsActive(shun) ? '+' : '-', shun->sh_reason);
} else {
for (shun = GlobalShunList; shun; shun = sshun) {
sshun = shun->sh_next;
if (shun->sh_expire <= CurrentTime)
shun_free(shun);
else
send_reply(sptr, RPL_SLIST, shun->sh_user,
shun->sh_host ? "@" : "",
shun->sh_host ? shun->sh_host : "",
shun->sh_expire + TSoffset,
ShunIsLocal(shun) ? cli_name(&me) : "*",
ShunIsActive(shun) ? '+' : '-', shun->sh_reason);
}
}
/* end of shun information */
return send_reply(sptr, RPL_ENDOFSLIST);
}
void
shun_stats(struct Client *sptr, struct StatDesc *sd, int stat, char *param)
{
struct Shun *shun;
struct Shun *sshun;
for (shun = GlobalShunList; shun; shun = sshun) {
sshun = shun->sh_next;
if (shun->sh_expire <= CurrentTime)
shun_free(shun);
else
send_reply(sptr, RPL_STATSSHUN, 'S', shun->sh_user,
shun->sh_host ? "@" : "",
shun->sh_host ? shun->sh_host : "",
shun->sh_expire + TSoffset, shun->sh_reason);
}
}
int
shun_memory_count(size_t *sh_size)
{
struct Shun *shun;
unsigned int sh = 0;
for (shun = GlobalShunList; shun; shun = shun->sh_next) {
sh++;
*sh_size += sizeof(struct Shun);
*sh_size += shun->sh_user ? (strlen(shun->sh_user) + 1) : 0;
*sh_size += shun->sh_host ? (strlen(shun->sh_host) + 1) : 0;
*sh_size += shun->sh_reason ? (strlen(shun->sh_reason) + 1) : 0;
}
return sh;
}
int expire_shuns()
{
struct Shun *shun;
struct Shun *sshun;
for (shun = GlobalShunList; shun; shun = sshun) { /* all shuns */
sshun = shun->sh_next;
if (shun->sh_expire <= CurrentTime) /* expire any that need expiring */
shun_free(shun);
}
return 0;
}
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