1992/0128/port/devip.c (diff list | history)

1992/0112/sys/src/9/port/devip.c:212,220 – 1992/0128/sys/src/9/port/devip.c:212,220 (short | long | prev | next)
1991/0424		long ipwrite(Chan *c, char *a, long n, ulong offset) { int m, backlog, type;
1992/0128		int m, backlog, type, priv;
1991/1024		char *field[5], *ctlarg[5], buf[256];
1991/0424		Port port, base;
1992/0128		Port port;
1991/1024		Ipconv *cp;
1991/0424		type = STREAMTYPE(c->qid.path);
1992/0112/sys/src/9/port/devip.c:248,259 – 1992/0128/sys/src/9/port/devip.c:248,259
1991/1024		default: error(Ebadarg); case 2: base = PORTALLOC;
1992/0128		priv = 0;
1991/1024		break; case 3: if(strcmp(ctlarg[2], "r") != 0) error(Eperm); base = PRIVPORTALLOC;
1992/0128		priv = 1;
1991/1024		break;
1991/0424		}
1991/1024		cp->dst = ipparse(ctlarg[0]);
1992/0112/sys/src/9/port/devip.c:262,268 – 1992/0128/sys/src/9/port/devip.c:262,268
1991/1024		/* If we have no local port assign one */ qlock(&ipalloc); if(cp->psrc == 0) cp->psrc = nextport(ipconv[c->dev], base);
1992/0128		cp->psrc = nextport(ipconv[c->dev], priv);
1991/1024		qunlock(&ipalloc);
1991/0424
1991/1114		if(cp->stproto == &tcpinfo)
1992/0112/sys/src/9/port/devip.c:557,562 – 1992/0128/sys/src/9/port/devip.c:557,563
1991/0424		ipc->readq = RD(q); ipc->readq->rp = &tcpflowr;
1992/0128		ipc->err = 0;
1991/0424		RD(q)->ptr = (void *)ipc; WR(q)->next->ptr = (void *)ipc->ipinterface;
1992/0112/sys/src/9/port/devip.c:852,865 – 1992/0128/sys/src/9/port/devip.c:853,884
1991/0424		return 0; }
1992/0128		static Port lastport[2] = { PORTALLOC-1, PRIVPORTALLOC-1 };
1991/0424		Port nextport(Ipconv *ic, Port base)
1992/0128		nextport(Ipconv *ic, int priv)
1991/0424		{
1992/0128		Port base; Port max; Port *p;
1991/0424		Port i;
1991/12171		for(i = base; i < PORTMAX; i++)
1992/0128		if(priv){ base = PRIVPORTALLOC; max = PORTALLOC; p = &lastport[1]; } else { base = PORTALLOC; max = PORTMAX; p = &lastport[0]; } for(i = *p + 1; i < max; i++)
1991/0424		if(!portused(ic, i)) return(i);
1992/0128		return(*p = i); for(i = base ; i <= *p; i++) if(!portused(ic, i)) return(*p = i);
1991/12171
1991/0424		return(0); }