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/* Copyright © 2003 Russ Cox, MIT; see /sys/src/libsunrpc/COPYING */
#include <u.h>
#include <libc.h>
#include <thread.h>
#include <sunrpc.h>
int chatty;
SunClient *client;
void
usage(void)
{
fprint(2, "usage: portmap address [cmd]\n"
"cmd is one of:\n"
"\tnull\n"
"\tset prog vers proto port\n"
"\tunset prog vers proto port\n"
"\tgetport prog vers proto\n"
"\tdump (default)\n");
threadexitsall("usage");
}
void
portCall(SunCall *c, PortCallType type)
{
c->rpc.prog = PortProgram;
c->rpc.vers = PortVersion;
c->rpc.proc = type>>1;
c->rpc.iscall = !(type&1);
c->type = type;
}
void
tnull(char **argv)
{
PortTNull tx;
PortRNull rx;
USED(argv);
memset(&tx, 0, sizeof tx);
portCall(&tx.call, PortCallTNull);
memset(&rx, 0, sizeof rx);
portCall(&rx.call, PortCallRNull);
if(sunClientRpc(client, 0, &tx.call, &rx.call, nil) < 0)
sysfatal("rpc: %r");
}
void
tset(char **argv)
{
PortTSet tx;
PortRSet rx;
memset(&tx, 0, sizeof tx);
portCall(&tx.call, PortCallTSet);
tx.map.prog = strtol(argv[0], 0, 0);
tx.map.vers = strtol(argv[1], 0, 0);
tx.map.prot = strtol(argv[2], 0, 0);
tx.map.port = strtol(argv[3], 0, 0);
memset(&rx, 0, sizeof rx);
portCall(&rx.call, PortCallRSet);
if(sunClientRpc(client, 0, &tx.call, &rx.call, nil) < 0)
sysfatal("rpc: %r");
if(rx.b == 0)
print("rejected\n");
}
void
tunset(char **argv)
{
PortTUnset tx;
PortRUnset rx;
memset(&tx, 0, sizeof tx);
portCall(&tx.call, PortCallTUnset);
tx.map.prog = strtol(argv[0], 0, 0);
tx.map.vers = strtol(argv[1], 0, 0);
tx.map.prot = strtol(argv[2], 0, 0);
tx.map.port = strtol(argv[3], 0, 0);
memset(&rx, 0, sizeof rx);
portCall(&rx.call, PortCallRUnset);
if(sunClientRpc(client, 0, &tx.call, &rx.call, nil) < 0)
sysfatal("rpc: %r");
if(rx.b == 0)
print("rejected\n");
}
void
tgetport(char **argv)
{
PortTGetport tx;
PortRGetport rx;
memset(&tx, 0, sizeof tx);
portCall(&tx.call, PortCallTGetport);
tx.map.prog = strtol(argv[0], 0, 0);
tx.map.vers = strtol(argv[1], 0, 0);
tx.map.prot = strtol(argv[2], 0, 0);
memset(&rx, 0, sizeof rx);
portCall(&rx.call, PortCallRGetport);
if(sunClientRpc(client, 0, &tx.call, &rx.call, nil) < 0)
sysfatal("rpc: %r");
print("%d\n", rx.port);
}
void
tdump(char **argv)
{
int i;
uchar *p;
PortTDump tx;
PortRDump rx;
PortMap *m;
USED(argv);
memset(&tx, 0, sizeof tx);
portCall(&tx.call, PortCallTDump);
memset(&rx, 0, sizeof rx);
portCall(&rx.call, PortCallRDump);
if(sunClientRpc(client, 0, &tx.call, &rx.call, &p) < 0)
sysfatal("rpc: %r");
for(i=0, m=rx.map; i<rx.nmap; i++, m++)
print("%ud %ud %ud %ud\n", (uint)m->prog, (uint)m->vers, (uint)m->prot, (uint)m->port);
free(p);
}
static struct {
char *cmd;
int narg;
void (*fn)(char**);
} tab[] = {
"null", 0, tnull,
"set", 4, tset,
"unset", 4, tunset,
"getport", 3, tgetport,
"dump", 0, tdump,
};
void
threadmain(int argc, char **argv)
{
char *dflt[] = { "dump", };
char *addr, *cmd;
int i;
ARGBEGIN{
case 'R':
chatty++;
break;
}ARGEND
if(argc < 1)
usage();
fmtinstall('B', sunRpcFmt);
fmtinstall('C', sunCallFmt);
fmtinstall('H', encodefmt);
sunFmtInstall(&portProg);
addr = netmkaddr(argv[0], "udp", "portmap");
if((client = sunDial(addr)) == nil)
sysfatal("dial %s: %r", addr);
client->chatty = chatty;
sunClientProg(client, &portProg);
argv++;
argc--;
if(argc == 0){
argc = 1;
argv = dflt;
}
cmd = argv[0];
argv++;
argc--;
for(i=0; i<nelem(tab); i++){
if(strcmp(tab[i].cmd, cmd) == 0){
if(tab[i].narg != argc)
usage();
(*tab[i].fn)(argv);
threadexitsall(nil);
}
}
usage();
}
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