wm: ircd

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add ERR_PASSWDMISMATCH(464) and some more fixes on pass()

--- a/ircd.c

+++ b/ircd.c

@@ -49,6 +49,7 @@

 	ERR_NOTONCHANNEL = 442,

 	ERR_NOTREGISTERED = 451,

 	ERR_ALREADYREGISTERED = 461,

+	ERR_PASSWDMISMATCH = 464,

 };

 typedef struct Item Item;

@@ -450,7 +451,9 @@

 	case ERR_ALREADYREGISTERED:

 		n = snprint(buf, n, ":%s 461 %s :Connection already registered\r\n", servername, c->nick);

 		break;

-

+	case ERR_PASSWDMISMATCH:

+		n = snprint(buf, n, ":%s 464 %s :Password incorrect\r\n", servername, c->nick);

+		break;

 	default:

 		fprint(2, "%d: reply: unknown code %d\n", c->fd, r->code);

 		assert(0);

@@ -1003,6 +1006,7 @@

 int

 pass(Client *c, char *p)

 {

+	Reply r;

 	if(password == nil)

 		return 1;

@@ -1011,7 +1015,9 @@

 		return 0;

 	}else{

 		if(strcmp(p, password) != 0){

-			close(c->fd);

+			r.code = ERR_PASSWDMISMATCH;

+			reply(c, &r);

+			delclient(c);

 		}else

 			c->passok = 1;

 	}