1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
|
/*
* ircd-ratbox: A slightly useful ircd.
* m_links.c: Shows what servers are currently connected.
*
* Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
* Copyright (C) 1996-2002 Hybrid Development Team
* Copyright (C) 2002-2005 ircd-ratbox development team
*
* 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 2 of the License, 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*
* $Id: m_links.c 254 2005-09-21 23:35:12Z nenolod $
*/
#include "stdinc.h"
#include "client.h"
#include "match.h"
#include "ircd.h"
#include "numeric.h"
#include "s_serv.h"
#include "send.h"
#include "s_conf.h"
#include "msg.h"
#include "parse.h"
#include "modules.h"
#include "hook.h"
#include "scache.h"
static int m_links(struct Client *, struct Client *, int, const char **);
static int mo_links(struct Client *, struct Client *, int, const char **);
static char * clean_string(char *dest, const unsigned char *src, size_t len);
struct Message links_msgtab = {
"LINKS", 0, 0, 0, MFLG_SLOW,
{mg_unreg, {m_links, 0}, {mo_links, 0}, mg_ignore, mg_ignore, {mo_links, 0}}
};
int doing_links_hook;
mapi_clist_av1 links_clist[] = { &links_msgtab, NULL };
mapi_hlist_av1 links_hlist[] = {
{ "doing_links", &doing_links_hook },
{ NULL, NULL }
};
DECLARE_MODULE_AV1(links, NULL, NULL, links_clist, links_hlist, NULL, "$Revision: 254 $");
/*
* m_links - LINKS message handler
* parv[1] = servername mask
* or
* parv[1] = server to query
* parv[2] = servername mask
*/
static int
m_links(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
if(ConfigServerHide.flatten_links && !IsExemptShide(source_p))
scache_send_flattened_links(source_p);
else
mo_links(client_p, source_p, parc, parv);
return 0;
}
static int
mo_links(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
const char *mask = "";
struct Client *target_p;
char clean_mask[2 * HOSTLEN + 4];
hook_data hd;
rb_dlink_node *ptr;
if(parc > 2)
{
if(strlen(parv[2]) > HOSTLEN)
return 0;
if(hunt_server(client_p, source_p, ":%s LINKS %s :%s", 1, parc, parv)
!= HUNTED_ISME)
return 0;
mask = parv[2];
}
else if(parc == 2)
mask = parv[1];
if(*mask) /* only necessary if there is a mask */
mask = collapse(clean_string
(clean_mask, (const unsigned char *) mask, 2 * HOSTLEN));
hd.client = source_p;
hd.arg1 = mask;
hd.arg2 = NULL;
call_hook(doing_links_hook, &hd);
RB_DLINK_FOREACH(ptr, global_serv_list.head)
{
target_p = ptr->data;
if(*mask && !match(mask, target_p->name))
continue;
/* We just send the reply, as if theyre here theres either no SHIDE,
* or theyre an oper..
*/
sendto_one_numeric(source_p, RPL_LINKS, form_str(RPL_LINKS),
target_p->name, target_p->servptr->name,
target_p->hopcount,
target_p->info[0] ? target_p->info : "(Unknown Location)");
}
sendto_one_numeric(source_p, RPL_ENDOFLINKS, form_str(RPL_ENDOFLINKS),
EmptyString(mask) ? "*" : mask);
return 0;
}
static char *
clean_string(char *dest, const unsigned char *src, size_t len)
{
char *d = dest;
s_assert(0 != dest);
s_assert(0 != src);
if(dest == NULL || src == NULL)
return NULL;
while (*src && (len > 1))
{
if(*src & 0x80) /* if high bit is set */
{
*d++ = '.';
--len;
if(len <= 1)
break;
}
else if(!IsPrint(*src)) /* if NOT printable */
{
*d++ = '^';
--len;
if(len <= 1)
break;
*d++ = 0x40 + *src; /* turn it into a printable */
}
else
*d++ = *src;
++src;
--len;
}
*d = '\0';
return dest;
}
|
