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Code Issues Releases Wiki Activity

Channel_Mode(): code cleanup (no functional changes)

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This commit is contained in:
Alexander Barton 2009-03-03 15:06:34 +01:00
parent b8c6dd503f
commit dee89c2355
1 changed files with 124 additions and 52 deletions
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176
src/ngircd/irc-mode.c
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@ -276,12 +276,14 @@ Channel_Mode_Answer_Request(CLIENT *Origin, CHANNEL *Channel)
} }
/**
* Handle channel mode and channel-user mode changes
*/
static bool static bool
Channel_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel ) Channel_Mode(CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel)
{ {
/* Handle channel and channel-user modes */ char the_modes[COMMAND_LEN], the_args[COMMAND_LEN], x[2],
argadd[CLIENT_PASS_LEN], *mode_ptr;
char the_modes[COMMAND_LEN], the_args[COMMAND_LEN], x[2], argadd[CLIENT_PASS_LEN], *mode_ptr;
bool ok, set, modeok = true, skiponce, use_servermode = false, retval; bool ok, set, modeok = true, skiponce, use_servermode = false, retval;
int mode_arg, arg_arg; int mode_arg, arg_arg;
CLIENT *client; CLIENT *client;
@ -307,7 +309,7 @@ Channel_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel )
/* channel operator? */ /* channel operator? */
if (strchr(Channel_UserModes(Channel, Origin), 'o')) if (strchr(Channel_UserModes(Channel, Origin), 'o'))
modeok = true; modeok = true;
else if(Conf_OperCanMode) { else if (Conf_OperCanMode) {
/* IRC-Operators can use MODE as well */ /* IRC-Operators can use MODE as well */
if (Client_OperByMe(Origin)) { if (Client_OperByMe(Origin)) {
modeok = true; modeok = true;
@ -327,8 +329,12 @@ Channel_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel )
/* Initial state: set or unset modes? */ /* Initial state: set or unset modes? */
skiponce = false; skiponce = false;
switch (*mode_ptr) { switch (*mode_ptr) {
case '-': set = false; break; case '-':
case '+': set = true; break; set = false;
break;
case '+':
set = true;
break;
default: default:
set = true; set = true;
skiponce = true; skiponce = true;
@ -341,7 +347,7 @@ Channel_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel )
x[1] = '\0'; x[1] = '\0';
ok = CONNECTED; ok = CONNECTED;
while (mode_ptr) { while (mode_ptr) {
if (! skiponce) if (!skiponce)
mode_ptr++; mode_ptr++;
if (!*mode_ptr) { if (!*mode_ptr) {
/* Try next argument if there's any */ /* Try next argument if there's any */
@ -364,10 +370,11 @@ Channel_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel )
switch (*mode_ptr) { switch (*mode_ptr) {
case '+': case '+':
case '-': case '-':
if (((*mode_ptr == '+') && !set) || ((*mode_ptr == '-') && set)) { if (((*mode_ptr == '+') && !set)
|| ((*mode_ptr == '-') && set)) {
/* Action modifier ("+"/"-") must be changed ... */ /* Action modifier ("+"/"-") must be changed ... */
len = strlen( the_modes ) - 1; len = strlen(the_modes) - 1;
if ((the_modes[len] == '+') || (the_modes[len] == '-')) { if (the_modes[len] == '+' || the_modes[len] == '-') {
/* Adjust last action modifier in result */ /* Adjust last action modifier in result */
the_modes[len] = *mode_ptr; the_modes[len] = *mode_ptr;
} else { } else {
@ -381,7 +388,8 @@ Channel_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel )
} }
/* Are there arguments left? */ /* Are there arguments left? */
if( arg_arg >= Req->argc ) arg_arg = -1; if (arg_arg >= Req->argc)
arg_arg = -1;
/* Validate modes */ /* Validate modes */
x[0] = '\0'; x[0] = '\0';
@ -397,29 +405,41 @@ Channel_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel )
if (modeok) if (modeok)
x[0] = *mode_ptr; x[0] = *mode_ptr;
else else
ok = IRC_WriteStrClient(Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID(Origin), Channel_Name(Channel)); ok = IRC_WriteStrClient(Origin,
ERR_CHANOPRIVSNEEDED_MSG,
Client_ID(Origin), Channel_Name(Channel));
break; break;
case 'k': /* Channel key */ case 'k': /* Channel key */
if (! set) { if (!set) {
if (modeok) if (modeok)
x[0] = *mode_ptr; x[0] = *mode_ptr;
else else
ok = IRC_WriteStrClient(Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID(Origin), Channel_Name(Channel)); ok = IRC_WriteStrClient(Origin,
ERR_CHANOPRIVSNEEDED_MSG,
Client_ID(Origin),
Channel_Name(Channel));
break; break;
} }
if (arg_arg > mode_arg) { if (arg_arg > mode_arg) {
if (modeok) { if (modeok) {
Channel_ModeDel(Channel, 'k'); Channel_ModeDel(Channel, 'k');
Channel_SetKey(Channel, Req->argv[arg_arg]); Channel_SetKey(Channel,
strlcpy(argadd, Channel_Key(Channel), sizeof(argadd)); Req->argv[arg_arg]);
strlcpy(argadd, Channel_Key(Channel),
sizeof(argadd));
x[0] = *mode_ptr; x[0] = *mode_ptr;
} else { } else {
ok = IRC_WriteStrClient(Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID(Origin), Channel_Name(Channel)); ok = IRC_WriteStrClient(Origin,
ERR_CHANOPRIVSNEEDED_MSG,
Client_ID(Origin),
Channel_Name(Channel));
} }
Req->argv[arg_arg][0] = '\0'; Req->argv[arg_arg][0] = '\0';
arg_arg++; arg_arg++;
} else { } else {
ok = IRC_WriteStrClient(Origin, ERR_NEEDMOREPARAMS_MSG, Client_ID(Origin), Req->command); ok = IRC_WriteStrClient(Origin,
ERR_NEEDMOREPARAMS_MSG,
Client_ID(Origin), Req->command);
} }
break; break;
case 'l': /* Member limit */ case 'l': /* Member limit */
@ -427,7 +447,10 @@ Channel_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel )
if (modeok) if (modeok)
x[0] = *mode_ptr; x[0] = *mode_ptr;
else else
ok = IRC_WriteStrClient(Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID(Origin), Channel_Name(Channel)); ok = IRC_WriteStrClient(Origin,
ERR_CHANOPRIVSNEEDED_MSG,
Client_ID(Origin),
Channel_Name(Channel));
break; break;
} }
if (arg_arg > mode_arg) { if (arg_arg > mode_arg) {
@ -436,28 +459,40 @@ Channel_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel )
if (l > 0 && l < 0xFFFF) { if (l > 0 && l < 0xFFFF) {
Channel_ModeDel(Channel, 'l'); Channel_ModeDel(Channel, 'l');
Channel_SetMaxUsers(Channel, l); Channel_SetMaxUsers(Channel, l);
snprintf(argadd, sizeof(argadd), "%ld", l); snprintf(argadd, sizeof(argadd),
"%ld", l);
x[0] = *mode_ptr; x[0] = *mode_ptr;
} }
} else { } else {
ok = IRC_WriteStrClient(Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID(Origin), Channel_Name(Channel)); ok = IRC_WriteStrClient(Origin,
ERR_CHANOPRIVSNEEDED_MSG,
Client_ID(Origin),
Channel_Name(Channel));
} }
Req->argv[arg_arg][0] = '\0'; Req->argv[arg_arg][0] = '\0';
arg_arg++; arg_arg++;
} else { } else {
ok = IRC_WriteStrClient(Origin, ERR_NEEDMOREPARAMS_MSG, Client_ID(Origin), Req->command); ok = IRC_WriteStrClient(Origin,
ERR_NEEDMOREPARAMS_MSG,
Client_ID(Origin), Req->command);
} }
break; break;
case 'P': /* Persistent channel */ case 'P': /* Persistent channel */
if (modeok) { if (modeok) {
/* Only IRC operators are allowed to /* Only IRC operators are allowed to
* set the 'P' channel mode! */ * set the 'P' channel mode! */
if (set && !(Client_OperByMe(Client) || Client_Type(Client) == CLIENT_SERVER)) if (set && !(Client_OperByMe(Client)
ok = IRC_WriteStrClient(Origin, ERR_NOPRIVILEGES_MSG, Client_ID(Origin)); || Client_Type(Client) == CLIENT_SERVER))
ok = IRC_WriteStrClient(Origin,
ERR_NOPRIVILEGES_MSG,
Client_ID(Origin));
else else
x[0] = 'P'; x[0] = 'P';
} else } else
ok = IRC_WriteStrClient(Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID(Origin), Channel_Name(Channel)); ok = IRC_WriteStrClient(Origin,
ERR_CHANOPRIVSNEEDED_MSG,
Client_ID(Origin),
Channel_Name(Channel));
break; break;
/* --- Channel user modes --- */ /* --- Channel user modes --- */
case 'o': /* Channel operator */ case 'o': /* Channel operator */
@ -468,14 +503,22 @@ Channel_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel )
if (client) if (client)
x[0] = *mode_ptr; x[0] = *mode_ptr;
else else
ok = IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG, Client_ID(Client), Req->argv[arg_arg]); ok = IRC_WriteStrClient(Client,
ERR_NOSUCHNICK_MSG,
Client_ID(Client),
Req->argv[arg_arg]);
} else { } else {
ok = IRC_WriteStrClient(Origin, ERR_CHANOPRIVSNEEDED_MSG, Client_ID(Origin), Channel_Name(Channel)); ok = IRC_WriteStrClient(Origin,
ERR_CHANOPRIVSNEEDED_MSG,
Client_ID(Origin),
Channel_Name(Channel));
} }
Req->argv[arg_arg][0] = '\0'; Req->argv[arg_arg][0] = '\0';
arg_arg++; arg_arg++;
} else { } else {
ok = IRC_WriteStrClient(Origin, ERR_NEEDMOREPARAMS_MSG, Client_ID(Origin), Req->command); ok = IRC_WriteStrClient(Origin,
ERR_NEEDMOREPARAMS_MSG,
Client_ID(Origin), Req->command);
} }
break; break;
/* --- Channel lists --- */ /* --- Channel lists --- */
@ -484,11 +527,18 @@ Channel_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel )
if (arg_arg > mode_arg) { if (arg_arg > mode_arg) {
/* modify list */ /* modify list */
if (modeok) { if (modeok) {
ok = set ? Add_Ban_Invite(*mode_ptr, Origin, Client, Channel, Req->argv[arg_arg]) ok = set
: Del_Ban_Invite(*mode_ptr, Origin, Client, Channel, Req->argv[arg_arg]); ? Add_Ban_Invite(*mode_ptr, Origin,
Client, Channel,
Req->argv[arg_arg])
: Del_Ban_Invite(*mode_ptr, Origin,
Client, Channel,
Req->argv[arg_arg]);
} else { } else {
ok = IRC_WriteStrClient(Origin, ERR_CHANOPRIVSNEEDED_MSG, ok = IRC_WriteStrClient(Origin,
Client_ID(Origin), Channel_Name(Channel)); ERR_CHANOPRIVSNEEDED_MSG,
Client_ID(Origin),
Channel_Name(Channel));
} }
Req->argv[arg_arg][0] = '\0'; Req->argv[arg_arg][0] = '\0';
arg_arg++; arg_arg++;
@ -500,13 +550,18 @@ Channel_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel )
} }
break; break;
default: default:
Log(LOG_DEBUG, "Unknown mode \"%c%c\" from \"%s\" on %s!?", Log(LOG_DEBUG,
set ? '+' : '-', *mode_ptr, Client_ID(Origin), Channel_Name(Channel)); "Unknown mode \"%c%c\" from \"%s\" on %s!?",
set ? '+' : '-', *mode_ptr, Client_ID(Origin),
Channel_Name(Channel));
if (Client_Type(Client) != CLIENT_SERVER) if (Client_Type(Client) != CLIENT_SERVER)
ok = IRC_WriteStrClient(Origin, ERR_UMODEUNKNOWNFLAG2_MSG, Client_ID(Origin), set ? '+' : '-', *mode_ptr); ok = IRC_WriteStrClient(Origin,
ERR_UMODEUNKNOWNFLAG2_MSG,
Client_ID(Origin),
set ? '+' : '-', *mode_ptr);
x[0] = '\0'; x[0] = '\0';
goto chan_exit; goto chan_exit;
} /* switch() */ } /* switch() */
if (!ok) if (!ok)
break; break;
@ -517,29 +572,40 @@ Channel_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel )
/* Validate target client */ /* Validate target client */
if (client && (!Channel_IsMemberOf(Channel, client))) { if (client && (!Channel_IsMemberOf(Channel, client))) {
if (!IRC_WriteStrClient(Origin, ERR_USERNOTINCHANNEL_MSG, if (!IRC_WriteStrClient
Client_ID(Origin), Client_ID(client), Channel_Name(Channel))) (Origin, ERR_USERNOTINCHANNEL_MSG,
break; Client_ID(Origin), Client_ID(client),
Channel_Name(Channel)))
break;
continue; continue;
} }
if (client) { if (client) {
/* Channel-User-Mode */ /* Channel-User-Mode */
retval = set ? Channel_UserModeAdd(Channel, client, x[0]) : Channel_UserModeDel(Channel, client, x[0]); retval = set
? Channel_UserModeAdd(Channel, client, x[0])
: Channel_UserModeDel(Channel, client, x[0]);
if (retval) { if (retval) {
strlcat(the_args, " ", sizeof(the_args)); strlcat(the_args, " ", sizeof(the_args));
strlcat(the_args, Client_ID(client), sizeof(the_args)); strlcat(the_args, Client_ID(client),
sizeof(the_args));
strlcat(the_modes, x, sizeof(the_modes)); strlcat(the_modes, x, sizeof(the_modes));
LogDebug("User \"%s\": Mode change on %s, now \"%s\"", LogDebug
Client_Mask(client), Channel_Name(Channel), Channel_UserModes(Channel, client)); ("User \"%s\": Mode change on %s, now \"%s\"",
Client_Mask(client), Channel_Name(Channel),
Channel_UserModes(Channel, client));
} }
} else { } else {
/* Channel-Mode */ /* Channel-Mode */
retval = set ? Channel_ModeAdd(Channel, x[0]) : Channel_ModeDel(Channel, x[0]); retval = set
? Channel_ModeAdd(Channel, x[0])
: Channel_ModeDel(Channel, x[0]);
if (retval) { if (retval) {
strlcat(the_modes, x, sizeof(the_modes)); strlcat(the_modes, x, sizeof(the_modes));
LogDebug("Channel %s: Mode change, now \"%s\".", Channel_Name(Channel), Channel_Modes(Channel)); LogDebug("Channel %s: Mode change, now \"%s\".",
Channel_Name(Channel),
Channel_Modes(Channel));
} }
} }
@ -549,7 +615,8 @@ Channel_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CHANNEL *Channel )
strlcat(the_args, argadd, sizeof(the_args)); strlcat(the_args, argadd, sizeof(the_args));
} }
} }
chan_exit:
chan_exit:
/* Are there changed modes? */ /* Are there changed modes? */
if (the_modes[1]) { if (the_modes[1]) {
/* Clean up mode string */ /* Clean up mode string */
@ -567,14 +634,19 @@ chan_exit:
/* Forward mode changes to channel users and all the /* Forward mode changes to channel users and all the
* other remote servers: */ * other remote servers: */
IRC_WriteStrServersPrefix(Client, Origin, "MODE %s %s%s", Channel_Name( Channel ), the_modes, the_args); IRC_WriteStrServersPrefix(Client, Origin,
IRC_WriteStrChannelPrefix(Client, Channel, Origin, false, "MODE %s %s%s", Channel_Name(Channel), the_modes, the_args); "MODE %s %s%s", Channel_Name(Channel),
the_modes, the_args);
IRC_WriteStrChannelPrefix(Client, Channel, Origin,
false, "MODE %s %s%s", Channel_Name(Channel),
the_modes, the_args);
} else { } else {
if (use_servermode) if (use_servermode)
Origin = Client_ThisServer(); Origin = Client_ThisServer();
/* Send reply to client and inform other servers and channel users */ /* Send reply to client and inform other servers and channel users */
ok = IRC_WriteStrClientPrefix(Client, Origin, "MODE %s %s%s", ok = IRC_WriteStrClientPrefix(Client, Origin,
Channel_Name(Channel), the_modes, the_args); "MODE %s %s%s", Channel_Name(Channel),
the_modes, the_args);
/* Only forward requests for non-local channels */ /* Only forward requests for non-local channels */
if (!Channel_IsLocal(Channel)) if (!Channel_IsLocal(Channel))
IRC_WriteStrServersPrefix(Client, Origin, IRC_WriteStrServersPrefix(Client, Origin,