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#include <u.h>
#define NOPLAN9DEFINES
#include <libc.h>
#include <sys/types.h>
#include <netdb.h>
#include <sys/un.h>
#include <netinet/in.h>
static char *nets[] = { "tcp", "udp", nil };
#define CLASS(p) ((*(uchar*)(p))>>6)
static struct {
char *net;
char *service;
int port;
} porttbl[] = {
"tcp", "9fs", 564,
"tcp", "whoami", 565,
"tcp", "guard", 566,
"tcp", "ticket", 567,
"tcp", "exportfs", 17007,
"tcp", "rexexec", 17009,
"tcp", "ncpu", 17010,
"tcp", "cpu", 17013,
"tcp", "venti", 17034,
"tcp", "wiki", 17035,
"tcp", "secstore", 5356,
"udp", "dns", 53,
"tcp", "dns", 53,
};
static int
setport(struct sockaddr_storage *ss, int port)
{
switch(ss->ss_family){
case AF_INET:
((struct sockaddr_in*)ss)->sin_port = htons(port);
break;
case AF_INET6:
((struct sockaddr_in6*)ss)->sin6_port = htons(port);
break;
default:
errstr("unknown protocol family %d", ss->ss_family);
return -1;
}
return 0;
}
int
p9dialparse(char *addr, char **pnet, char **punix, void *phost, int *pport)
{
char *net, *host, *port, *e;
int i;
struct servent *se;
struct hostent *he;
struct sockaddr_storage *ss;
struct addrinfo *result;
ss = phost;
memset(ss, 0, sizeof(ss));
*punix = nil;
net = addr;
if((host = strchr(net, '!')) == nil){
werrstr("malformed address");
return -1;
}
*host++ = 0;
if((port = strchr(host, '!')) == nil){
if(strcmp(net, "unix")==0 || strcmp(net, "net")==0){
Unix:
if(strlen(host)+1 > sizeof ((struct sockaddr_un*)&ss)->sun_path){
werrstr("unix socket name too long");
return -1;
}
*punix = host;
*pnet = "unix";
ss->ss_family = AF_UNIX;
strcpy(((struct sockaddr_un*)ss)->sun_path, host);
*pport = 0;
return 0;
}
werrstr("malformed address");
return -1;
}
*port++ = 0;
if(*host == 0){
werrstr("malformed address (empty host)");
return -1;
}
if(*port == 0){
werrstr("malformed address (empty port)");
return -1;
}
if(strcmp(net, "unix") == 0)
goto Unix;
if(strcmp(net, "tcp")!=0 && strcmp(net, "udp")!=0 && strcmp(net, "net") != 0){
werrstr("bad network %s!%s!%s", net, host, port);
return -1;
}
/* translate host */
if(strcmp(host, "*") == 0){
ss->ss_family = AF_INET6;
((struct sockaddr_in6*)ss)->sin6_addr = in6addr_any;
}else if((he = gethostbyname(host)) != nil){
ss->ss_family = he->h_addrtype;
switch(ss->ss_family){
case AF_INET:
((struct sockaddr_in*)ss)->sin_addr = *(struct in_addr*) *(he->h_addr_list);
break;
case AF_INET6:
((struct sockaddr_in6*)ss)->sin6_addr = *(struct in6_addr*) *(he->h_addr_list);
break;
default:
errstr("unknown protocol family %d", ss->ss_family);
return -1;
}
}else if(getaddrinfo(host, NULL, NULL, &result) == 0) {
ss->ss_family = result->ai_family;
switch (ss->ss_family) {
case AF_INET:
memcpy((struct sockaddr_in*)ss, result->ai_addr, result->ai_addrlen);
break;
case AF_INET6:
memcpy((struct sockaddr_in6*)ss, result->ai_addr, result->ai_addrlen);
break;
default:
errstr("unknown protocol family %d", ss->ss_family);
return -1;
}
}else{
werrstr("unknown host %s", host);
return -1;
}
/* translate network and port; should return list rather than first */
if(strcmp(net, "net") == 0){
for(i=0; nets[i]; i++){
if((se = getservbyname(port, nets[i])) != nil){
*pnet = nets[i];
*pport = ntohs(se->s_port);
return setport(ss, *pport);
}
}
}
for(i=0; i<nelem(porttbl); i++){
if(strcmp(net, "net") == 0 || strcmp(porttbl[i].net, net) == 0)
if(strcmp(porttbl[i].service, port) == 0){
*pnet = porttbl[i].net;
*pport = porttbl[i].port;
return setport(ss, *pport);
}
}
if(strcmp(net, "net") == 0){
werrstr("unknown service net!*!%s", port);
return -1;
}
if(strcmp(net, "tcp") != 0 && strcmp(net, "udp") != 0){
werrstr("unknown network %s", net);
return -1;
}
*pnet = net;
i = strtol(port, &e, 0);
if(*e == 0){
*pport = i;
return setport(ss, *pport);
}
if((se = getservbyname(port, net)) != nil){
*pport = ntohs(se->s_port);
return setport(ss, *pport);
}
werrstr("unknown service %s!*!%s", net, port);
return -1;
}
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