Module: ngircd.git Branch: master Commit: d692286d7a5a31f5ccef4f8d6b3ddee2188950ff URL: http://ngircd.barton.de/cgi-bin/gitweb.cgi?p=ngircd.git&a=commit;h=d6922...

Author: Alexander Barton alex@barton.de Date: Mon Aug 1 09:07:32 2011 +0200

IRC_MODE(), Client_Mode(): code cleanup [1/2]

---

src/ngircd/irc-mode.c | 146 ++++++++++++++++++++++++++++++------------------- 1 files changed, 89 insertions(+), 57 deletions(-)

diff --git a/src/ngircd/irc-mode.c b/src/ngircd/irc-mode.c index 50b0db0..2cc60f4 100644 --- a/src/ngircd/irc-mode.c +++ b/src/ngircd/irc-mode.c @@ -50,25 +50,39 @@ static bool Send_ListChange PARAMS((const char *Mode, CLIENT *Prefix, CLIENT *Client, CHANNEL *Channel, const char *Mask));

+/** + * Handler for the IRC "MODE" command. + * + * See RFC 2812 section 3.1.5 ("user mode message") and section 3.2.3 + * ("channel mode message"), and RFC 2811 section 4 ("channel modes"). + * + * @param Client The client from which this command has been received. + * @param Req Request structure with prefix and all parameters. + * @returns CONNECTED or DISCONNECTED. + */ GLOBAL bool IRC_MODE( CLIENT *Client, REQUEST *Req ) { CLIENT *cl, *origin; CHANNEL *chan;

- assert( Client != NULL ); - assert( Req != NULL ); + assert(Client != NULL); + assert(Req != NULL);

/* No parameters? */ - if( Req->argc < 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); + if (Req->argc < 1) + return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG, + Client_ID(Client), Req->command);

/* Origin for answers */ - if( Client_Type( Client ) == CLIENT_SERVER ) - { - origin = Client_Search( Req->prefix ); - if( ! origin ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix ); - } - else origin = Client; + if (Client_Type(Client) == CLIENT_SERVER) { + origin = Client_Search(Req->prefix); + if (!origin) + return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG, + Client_ID(Client), + Req->prefix); + } else + origin = Client;

/* Channel or user mode? */ cl = NULL; chan = NULL; @@ -88,51 +102,65 @@ IRC_MODE( CLIENT *Client, REQUEST *Req ) } /* IRC_MODE */

+/** + * Handle client mode requests + * + * @param Client The client from which this command has been received. + * @param Req Request structure with prefix and all parameters. + * @param Origin The originator of the MODE command (prefix). + * @param Target The target (client) of this MODE command. + * @returns CONNECTED or DISCONNECTED. + */ static bool Client_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CLIENT *Target ) { - /* Handle client mode requests */ - char the_modes[COMMAND_LEN], x[2], *mode_ptr; bool ok, set; int mode_arg; size_t len;

/* Is the client allowed to request or change the modes? */ - if( Client_Type( Client ) == CLIENT_USER ) - { + if (Client_Type(Client) == CLIENT_USER) { /* Users are only allowed to manipulate their own modes! */ - if( Target != Client ) return IRC_WriteStrClient( Client, ERR_USERSDONTMATCH_MSG, Client_ID( Client )); + if (Target != Client) + return IRC_WriteStrClient(Client, + ERR_USERSDONTMATCH_MSG, + Client_ID(Client)); }

/* Mode request: let's answer it :-) */ - if( Req->argc == 1 ) return IRC_WriteStrClient( Origin, RPL_UMODEIS_MSG, Client_ID( Origin ), Client_Modes( Target )); + if (Req->argc == 1) + return IRC_WriteStrClient(Origin, RPL_UMODEIS_MSG, + Client_ID(Origin), + Client_Modes(Target));

mode_arg = 1; mode_ptr = Req->argv[mode_arg];

/* Initial state: set or unset modes? */ - if( *mode_ptr == '+' ) set = true; - else if( *mode_ptr == '-' ) set = false; - else return IRC_WriteStrClient( Origin, ERR_UMODEUNKNOWNFLAG_MSG, Client_ID( Origin )); - - /* Prepare reply string */ - if( set ) strcpy( the_modes, "+" ); - else strcpy( the_modes, "-" ); + if (*mode_ptr == '+') { + set = true; + strcpy(the_modes, "+"); + } else if (*mode_ptr == '-') { + set = false; + strcpy(the_modes, "-"); + } else + return IRC_WriteStrClient(Origin, ERR_UMODEUNKNOWNFLAG_MSG, + Client_ID(Origin));

x[1] = '\0'; ok = CONNECTED; - while( mode_ptr ) - { + while (mode_ptr) { mode_ptr++; - if( ! *mode_ptr ) - { + if (!*mode_ptr) { /* Try next argument if there's any */ mode_arg++; - if( mode_arg < Req->argc ) mode_ptr = Req->argv[mode_arg]; - else break; + if (mode_arg < Req->argc) + mode_ptr = Req->argv[mode_arg]; + else + break; } - + switch( *mode_ptr ) { case '+': @@ -217,49 +245,53 @@ Client_Mode( CLIENT *Client, REQUEST *Req, CLIENT *Origin, CLIENT *Target ) x[0] = '\0'; goto client_exit; } - if( ! ok ) break; + if (!ok) + break;

/* Is there a valid mode change? */ - if( ! x[0] ) continue; - - if( set ) - { - /* Set mode */ - if( Client_ModeAdd( Target, x[0] )) strlcat( the_modes, x, sizeof( the_modes )); + if (!x[0]) + continue;

+ if (set) { + if (Client_ModeAdd(Target, x[0])) + strlcat(the_modes, x, sizeof(the_modes)); + } else { + if (Client_ModeDel(Target, x[0])) + strlcat(the_modes, x, sizeof(the_modes)); } - else - { - /* Unset mode */ - if( Client_ModeDel( Target, x[0] )) strlcat( the_modes, x, sizeof( the_modes )); - } } client_exit: - + /* Are there changed modes? */ - if( the_modes[1] ) - { + if (the_modes[1]) { /* Remoce needless action modifier characters */ - len = strlen( the_modes ) - 1; - if(( the_modes[len] == '+' ) || ( the_modes[len] == '-' )) the_modes[len] = '\0'; + len = strlen(the_modes) - 1; + if (the_modes[len] == '+' || the_modes[len] == '-') + the_modes[len] = '\0';

- if( Client_Type( Client ) == CLIENT_SERVER ) - { + if (Client_Type(Client) == CLIENT_SERVER) { /* Forward modes to other servers */ - IRC_WriteStrServersPrefix( Client, Origin, "MODE %s :%s", Client_ID( Target ), the_modes ); - } - else - { + IRC_WriteStrServersPrefix(Client, Origin, + "MODE %s :%s", + Client_ID(Target), + the_modes); + } else { /* Send reply to client and inform other servers */ - ok = IRC_WriteStrClientPrefix( Client, Origin, "MODE %s :%s", Client_ID( Target ), the_modes ); - IRC_WriteStrServersPrefix( Client, Origin, "MODE %s :%s", Client_ID( Target ), the_modes ); + ok = IRC_WriteStrClientPrefix(Client, Origin, + "MODE %s :%s", + Client_ID(Target), + the_modes); + IRC_WriteStrServersPrefix(Client, Origin, + "MODE %s :%s", + Client_ID(Target), + the_modes); } LogDebug("%s "%s": Mode change, now "%s".", Client_TypeText(Target), Client_Mask(Target), Client_Modes(Target)); } - - IRC_SetPenalty( Client, 1 ); + + IRC_SetPenalty(Client, 1); return ok; } /* Client_Mode */