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https://github.com/irssi/irssi.git
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f354fe54c7
bind protocol-specific commands. Added #define command_bind_irc() for easier access. CMD_IRC_SERVER(server) check should be done at the beginning of each command requiring IRC server as active server, it handles it correctly the cases when it is not. Did some other cleanups as well. git-svn-id: http://svn.irssi.org/repos/irssi/trunk@1955 dbcabf3a-b0e7-0310-adc4-f8d773084564
92 lines
2.3 KiB
C
92 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
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "module.h"
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#include "network.h"
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#include "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 && 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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