Did you print their hosts to make sure one wasn't link dead?
----- Original Message -----
From: "Anarchangel" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Thursday, November 14, 2002 10:01 AM
Subject: Multiplay check question
> Hey everyone,
>
> I'd appreciate any input and constructive criticism on the
> following. Hopefully it's something simple that I'm overlooking.
>
> I recently put together a simple check for a multiplaying character. It
> doesn't do anything except write to wiznet. It seems to be working fine,
> but today I noticed the mud I'm working on crashed in the
> function. Here's the GDB info:
>
> #0 0x8079fcc in check_multiplay (ch=0x40bd38e0) at comm.c:4388
> 4388 if ( (!IS_NPC(ch_check) && !IS_NPC(ch))
> (gdb) bt
> #0 0x8079fcc in check_multiplay (ch=0x40bd38e0) at comm.c:4388
> #1 0x80777f3 in nanny (d=0x40a3334c, argument=0x40a33774 "") at
> comm.c:3064
> #2 0x80740f0 in game_loop_unix (control=4) at comm.c:1183
> #3 0x80734fb in main (argc=4, argv=0xbffffdd4) at comm.c:497
> #4 0x4005ecbe in __libc_start_main () from /lib/libc.so.6
>
> #0 0x8079fcc in check_multiplay (ch=0x40bd38e0) at comm.c:4388
> 4388 if ( (!IS_NPC(ch_check) && !IS_NPC(ch))
> (gdb) info local
> ch = (CHAR_DATA *) 0x40bd38e0
> ch_check = (CHAR_DATA *) 0x40ba01d4
>
> I went ahead and printed ch and ch_check and they're both PC's, as I
> thought. I can't think of why it would have crashed, as there have been
> at least a hundred logins and logouts since I made this live.
>
> I call it in the nanny, right when it tells the room that someone entered
> the game.
>
> check_multiplay( ch );
>
> Here's the function:
> host is IP address and host2 is resolved domain.
>
> void check_multiplay( CHAR_DATA *ch )
> {
> CHAR_DATA *ch_check;
>
> if(!ch)
> {
> log_string( "ch is null in multiplay check." );
> return;
> }
>
> /* Don't want to give away immortals */
> if(IS_IMMORTAL(ch))
> return;
>
> for ( ch_check = char_list; ch_check != NULL; ch_check =
ch_check->next )
> {
> if ( (!IS_NPC(ch_check) && !IS_NPC(ch)) <-- Offending line
> && !str_cmp( ch->desc->host2, ch_check->desc->host2)
> && ch != ch_check )
> {
> char buf[MSL];
>
> /* Don't want to give away immortals */
> if(IS_IMMORTAL(ch_check))
> return;
>
> /* Just in case */
> if(ch->name)
> sprintf(buf, "%s may be multiplaying.", ch->name);
> else
> {
> log_string( "ch->name is null in multiplay check." );
> return;
> }
>
> wiznet( "$N may be multiplaying.", ch, NULL,
WIZ_ON,0,get_trust(ch));
> log_string( buf );
>
> return;
> }
> }
>
> return;
>
> }
>
>
> --
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