Bug Summary

File:irc/core/irc-channels.c
Location:line 155, column 3
Description:Value stored to 'cmdlen' is never read

Annotated Source Code

1/*
2 irc-channels.c : irssi
3
4 Copyright (C) 1999-2000 Timo Sirainen
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License along
17 with this program; if not, write to the Free Software Foundation, Inc.,
18 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19*/
20
21#include "module.h"
22#include "signals.h"
23#include "misc.h"
24#include "levels.h"
25#include "channels-setup.h"
26
27#include "bans.h"
28#include "modes.h"
29#include "mode-lists.h"
30#include "irc-servers.h"
31#include "irc-channels.h"
32#include "irc-nicklist.h"
33#include "channel-rejoin.h"
34
35void channels_query_init(void);
36void channels_query_deinit(void);
37
38void channel_events_init(void);
39void channel_events_deinit(void);
40
41void irc_channels_setup_init(void);
42void irc_channels_setup_deinit(void);
43
44void massjoin_init(void);
45void massjoin_deinit(void);
46
47IRC_CHANNEL_REC *irc_channel_create(IRC_SERVER_REC *server, const char *name,
48 const char *visible_name, int automatic)
49{
50 IRC_CHANNEL_REC *rec;
51
52 g_return_val_if_fail(server == NULL || IS_IRC_SERVER(server), NULL)do{ if (server == ((void *)0) || (((IRC_SERVER_REC *) chat_protocol_check_cast
(((SERVER_REC *) module_check_cast(server, __builtin_offsetof
(SERVER_REC, type), "SERVER")), __builtin_offsetof(IRC_SERVER_REC
, chat_type), "IRC")) ? (!(0)) : (0))) { } else { g_return_if_fail_warning
(((gchar*) 0), __PRETTY_FUNCTION__, "server == NULL || IS_IRC_SERVER(server)"
); return (((void *)0)); }; }while (0);
53 g_return_val_if_fail(name != NULL, NULL)do{ if (name != ((void *)0)) { } else { g_return_if_fail_warning
(((gchar*) 0), __PRETTY_FUNCTION__, "name != NULL"); return (
((void *)0)); }; }while (0);
54
55 rec = g_new0(IRC_CHANNEL_REC, 1)((IRC_CHANNEL_REC *) g_malloc0 (((gsize) sizeof (IRC_CHANNEL_REC
)) * ((gsize) (1))));
56 if (*name == '+') rec->no_modes = TRUE(!(0));
57
58 channel_init((CHANNEL_REC *) rec, (SERVER_REC *) server,
59 name, visible_name, automatic);
60 return rec;
61}
62
63#define get_join_key(key)(((key) == ((void *)0) || *(key) == '\0') ? "x" : (key)) \
64 (((key) == NULL((void *)0) || *(key) == '\0') ? "x" : (key))
65
66static void irc_channels_join(IRC_SERVER_REC *server, const char *data,
67 int automatic)
68{
69 CHANNEL_SETUP_REC *schannel;
70 IRC_CHANNEL_REC *chanrec;
71 GString *outchans, *outkeys;
72 char *channels, *keys, *key, *space;
73 char **chanlist, **keylist, **tmp, **tmpkey, **tmpstr, *channel, *channame;
74 void *free_arg;
75 int use_keys, cmdlen;
76
77 g_return_if_fail(data != NULL)do{ if (data != ((void *)0)) { } else { g_return_if_fail_warning
(((gchar*) 0), __PRETTY_FUNCTION__, "data != NULL"); return;
}; }while (0);
78 g_return_if_fail(IS_IRC_SERVER(server) && server->connected)do{ if ((((IRC_SERVER_REC *) chat_protocol_check_cast(((SERVER_REC
*) module_check_cast(server, __builtin_offsetof(SERVER_REC, type
), "SERVER")), __builtin_offsetof(IRC_SERVER_REC, chat_type),
"IRC")) ? (!(0)) : (0)) && server->connected) { }
else { g_return_if_fail_warning (((gchar*) 0), __PRETTY_FUNCTION__
, "IS_IRC_SERVER(server) && server->connected"); return
; }; }while (0);
79 if (*data == '\0') return;
80
81 if (!cmd_get_params(data, &free_arg, 2 | PARAM_FLAG_GETREST0x00002000,
82 &channels, &keys))
83 return;
84
85 /* keys shouldn't contain space */
86 space = strchr(keys, ' ');
87 if (space != NULL((void *)0)) {
88 *space = '\0';
89 }
90
91 chanlist = g_strsplit(channels, ",", -1);
92 keylist = g_strsplit(keys, ",", -1);
93
94 outchans = g_string_new(NULL((void *)0));
95 outkeys = g_string_new(NULL((void *)0));
96
97 use_keys = *keys != '\0';
98 tmpkey = keylist;
99 tmp = chanlist;
100 for (;; tmp++) {
101 if (*tmp != NULL((void *)0)) {
102 channel = ischannel(**tmp)((**tmp) == '#' || (**tmp) == '&' || (**tmp) == '!' || (*
*tmp) == '+') ? g_strdup(*tmp) :
103 g_strdup_printf("#%s", *tmp);
104
105 chanrec = irc_channel_find(server, channel)((IRC_CHANNEL_REC *) chat_protocol_check_cast(((CHANNEL_REC *
) module_check_cast_module(channel_find(((SERVER_REC *) module_check_cast
(server, __builtin_offsetof(SERVER_REC, type), "SERVER")), channel
), __builtin_offsetof(CHANNEL_REC, type), "WINDOW ITEM TYPE",
"CHANNEL")), __builtin_offsetof(IRC_CHANNEL_REC, chat_type),
"IRC"));
106 if (chanrec == NULL((void *)0)) {
107 schannel = channel_setup_find(channel, server->connrec->chatnet);
108
109 g_string_append_printf(outchans, "%s,", channel);
110 if (*tmpkey != NULL((void *)0) && **tmpkey != '\0')
111 key = *tmpkey;
112 else if (schannel != NULL((void *)0) && schannel->password != NULL((void *)0)) {
113 /* get password from setup record */
114 use_keys = TRUE(!(0));
115 key = schannel->password;
116 } else key = NULL((void *)0);
117
118 g_string_append_printf(outkeys, "%s,", get_join_key(key)(((key) == ((void *)0) || *(key) == '\0') ? "x" : (key)));
119 channame = channel + (channel[0] == '!' &&
120 channel[1] == '!');
121 chanrec = irc_channel_create(server, channame, NULL((void *)0),
122 automatic);
123 if (key != NULL((void *)0)) chanrec->key = g_strdup(key);
124 }
125 g_free(channel);
126
127 if (*tmpkey != NULL((void *)0))
128 tmpkey++;
129
130 tmpstr = tmp;
131 tmpstr++;
132 cmdlen = outchans->len-1;
133
134 if (use_keys)
135 cmdlen += outkeys->len;
136 if (*tmpstr != NULL((void *)0))
137 cmdlen += ischannel(**tmpstr)((**tmpstr) == '#' || (**tmpstr) == '&' || (**tmpstr) == '!'
|| (**tmpstr) == '+') ? strlen(*tmpstr) :
138 strlen(*tmpstr)+1;
139 if (*tmpkey != NULL((void *)0))
140 cmdlen += strlen(*tmpkey);
141
142 /* don't try to send too long lines
143 make sure it's not longer than 510
144 so 510 - strlen("JOIN ") = 505 */
145 if (cmdlen < 505)
146 continue;
147 }
148 if (outchans->len > 0) {
149 g_string_truncate(outchans, outchans->len-1);
150 g_string_truncate(outkeys, outkeys->len-1);
151 irc_send_cmdv(IRC_SERVER(server)((IRC_SERVER_REC *) chat_protocol_check_cast(((SERVER_REC *) module_check_cast
(server, __builtin_offsetof(SERVER_REC, type), "SERVER")), __builtin_offsetof
(IRC_SERVER_REC, chat_type), "IRC")),
152 use_keys ? "JOIN %s %s" : "JOIN %s",
153 outchans->str, outkeys->str);
154 }
155 cmdlen = 0;
Value stored to 'cmdlen' is never read
156 g_string_truncate(outchans,0);
157 g_string_truncate(outkeys,0);
158 if (*tmp == NULL((void *)0) || tmp[1] == NULL((void *)0))
159 break;
160 }
161 g_string_free(outchans, TRUE(!(0)));
162 g_string_free(outkeys, TRUE(!(0)));
163
164 g_strfreev(chanlist);
165 g_strfreev(keylist);
166
167 cmd_params_free(free_arg);
168}
169
170/* function for finding IRC channels - adds support for !channels */
171static CHANNEL_REC *irc_channel_find_server(SERVER_REC *server,
172 const char *channel)
173{
174 GSList *tmp;
175
176 for (tmp = server->channels; tmp != NULL((void *)0); tmp = tmp->next) {
177 CHANNEL_REC *rec = tmp->data;
178
179 if (rec->chat_type != server->chat_type)
180 continue;
181
182 /* check both !ABCDEchannel and !channel */
183 if (IRC_SERVER(server)((IRC_SERVER_REC *) chat_protocol_check_cast(((SERVER_REC *) module_check_cast
(server, __builtin_offsetof(SERVER_REC, type), "SERVER")), __builtin_offsetof
(IRC_SERVER_REC, chat_type), "IRC"))->nick_comp_func(channel, rec->name) == 0)
184 return rec;
185
186 if (IRC_SERVER(server)((IRC_SERVER_REC *) chat_protocol_check_cast(((SERVER_REC *) module_check_cast
(server, __builtin_offsetof(SERVER_REC, type), "SERVER")), __builtin_offsetof
(IRC_SERVER_REC, chat_type), "IRC"))->nick_comp_func(channel, rec->visible_name) == 0)
187 return rec;
188 }
189
190 return NULL((void *)0);
191}
192
193static void sig_server_connected(SERVER_REC *server)
194{
195 if (!IS_IRC_SERVER(server)(((IRC_SERVER_REC *) chat_protocol_check_cast(((SERVER_REC *)
module_check_cast(server, __builtin_offsetof(SERVER_REC, type
), "SERVER")), __builtin_offsetof(IRC_SERVER_REC, chat_type),
"IRC")) ? (!(0)) : (0)))
196 return;
197
198 server->channel_find_func = irc_channel_find_server;
199 server->channels_join = (void (*) (SERVER_REC *, const char *, int))
200 irc_channels_join;
201}
202
203static char *irc_get_join_data(CHANNEL_REC *channel)
204{
205 IRC_CHANNEL_REC *irc_channel = (IRC_CHANNEL_REC *) channel;
206
207 return irc_channel->key == NULL((void *)0) ? g_strdup(irc_channel->name) :
208 g_strconcat(irc_channel->name, " ", irc_channel->key, NULL((void *)0));
209}
210
211static void sig_channel_created(IRC_CHANNEL_REC *channel)
212{
213 if (IS_IRC_CHANNEL(channel)(((IRC_CHANNEL_REC *) chat_protocol_check_cast(((CHANNEL_REC *
) module_check_cast_module(channel, __builtin_offsetof(CHANNEL_REC
, type), "WINDOW ITEM TYPE", "CHANNEL")), __builtin_offsetof(
IRC_CHANNEL_REC, chat_type), "IRC")) ? (!(0)) : (0)))
214 channel->get_join_data = irc_get_join_data;
215}
216
217static void sig_channel_destroyed(IRC_CHANNEL_REC *channel)
218{
219 if (!IS_IRC_CHANNEL(channel)(((IRC_CHANNEL_REC *) chat_protocol_check_cast(((CHANNEL_REC *
) module_check_cast_module(channel, __builtin_offsetof(CHANNEL_REC
, type), "WINDOW ITEM TYPE", "CHANNEL")), __builtin_offsetof(
IRC_CHANNEL_REC, chat_type), "IRC")) ? (!(0)) : (0)))
220 return;
221
222 if (!channel->server->disconnected && !channel->left && !channel->kicked) {
223 /* destroying channel record without actually
224 having left the channel yet */
225 signal_emit("command part", 3, "", channel->server, channel);
226 }
227}
228
229void irc_channels_init(void)
230{
231 signal_add_first("server connected", (SIGNAL_FUNC) sig_server_connected)signal_add_full("irc/core", -100, ("server connected"), (SIGNAL_FUNC
) ((SIGNAL_FUNC) sig_server_connected), ((void *)0));
232 signal_add("channel created", (SIGNAL_FUNC) sig_channel_created)signal_add_full("irc/core", 0, ("channel created"), (SIGNAL_FUNC
) ((SIGNAL_FUNC) sig_channel_created), ((void *)0));
233 signal_add("channel destroyed", (SIGNAL_FUNC) sig_channel_destroyed)signal_add_full("irc/core", 0, ("channel destroyed"), (SIGNAL_FUNC
) ((SIGNAL_FUNC) sig_channel_destroyed), ((void *)0));
234
235 channel_events_init();
236 channel_rejoin_init(); /* after channel_events_init() */
237 channels_query_init();
238 irc_channels_setup_init();
239
240 bans_init();
241 modes_init();
242 mode_lists_init();
243 massjoin_init();
244 irc_nicklist_init();
245}
246
247void irc_channels_deinit(void)
248{
249 signal_remove("server connected", (SIGNAL_FUNC) sig_server_connected)signal_remove_full(("server connected"), (SIGNAL_FUNC) ((SIGNAL_FUNC
) sig_server_connected), ((void *)0));
250 signal_remove("channel created", (SIGNAL_FUNC) sig_channel_created)signal_remove_full(("channel created"), (SIGNAL_FUNC) ((SIGNAL_FUNC
) sig_channel_created), ((void *)0));
251 signal_remove("channel destroyed", (SIGNAL_FUNC) sig_channel_destroyed)signal_remove_full(("channel destroyed"), (SIGNAL_FUNC) ((SIGNAL_FUNC
) sig_channel_destroyed), ((void *)0));
252
253 channel_events_deinit();
254 channel_rejoin_deinit();
255 channels_query_deinit();
256 irc_channels_setup_deinit();
257
258 bans_deinit();
259 modes_deinit();
260 mode_lists_deinit();
261 massjoin_deinit();
262 irc_nicklist_deinit();
263}