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93 lines
2.3 KiB
C
93 lines
2.3 KiB
C
/*
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masks.c : irssi
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Copyright (C) 1999-2000 Timo Sirainen
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "module.h"
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#include <irssi/src/core/network.h>
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#include <irssi/src/irc/core/irc-masks.h>
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static char *get_domain_mask(char *host)
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{
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char *ptr;
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if (strchr(host, '.') == NULL) {
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/* no dots - toplevel domain or IPv6 address */
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ptr = strrchr(host, ':');
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if (ptr != NULL) {
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/* IPv6 address, ban the last 64k addresses */
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if (ptr[1] != '\0') strcpy(ptr+1, "*");
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}
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return host;
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}
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if (is_ipv4_address(host)) {
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/* it's an IP address, change last digit to * */
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ptr = strrchr(host, '.');
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if (ptr != NULL && i_isdigit(ptr[1]))
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strcpy(ptr+1, "*");
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} else {
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/* if more than one dot, skip the first
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(dyn123.blah.net -> *.blah.net) */
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ptr = strchr(host, '.');
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if (ptr != NULL && strchr(ptr+1, '.') != NULL) {
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host = ptr-1;
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host[0] = '*';
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}
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}
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return host;
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}
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char *irc_get_mask(const char *nick, const char *address, int flags)
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{
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char *ret, *user, *host;
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/* strip -, ^ or ~ from start.. */
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user = g_strconcat("*", ishostflag(*address) ?
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address+1 : address, NULL);
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/* split user and host */
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host = strchr(user, '@');
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if (host == NULL) {
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g_free(user);
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return NULL;
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}
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*host++ = '\0';
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if (flags & IRC_MASK_HOST) {
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/* we already have the host */
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} else if (flags & IRC_MASK_DOMAIN) {
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/* domain - *.blah.org */
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host = get_domain_mask(host);
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} else {
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/* no domain/host */
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host = "*";
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}
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ret = g_strdup_printf("%s!%s@%s",
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(flags & IRC_MASK_NICK) ? nick : "*",
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(flags & IRC_MASK_USER) ? user : "*",
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host);
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g_free(user);
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return ret;
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}
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