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QLip.c
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/*********************************************************************
* QLIP (c) 1998 Jonathan Hudson & Richard Zidlicky
*
* This code is part of the uqlx QDOS emulator for Unix
*
* This file is outside the uqlx copyright and may be freely copied,
* used and modified for any non-commercial purpose.
*
********************************************************************/
#ifdef IPDEV
/*#include "QLtypes.h"*/
#include "QL68000.h"
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <signal.h>
#include <sys/time.h>
#include <netdb.h>
#include <netinet/in.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <sys/ioctl.h>
#include "QSerial.h"
#include "QDOS.h"
#include "driver.h"
#include "uqlx_cfg.h"
#include "util.h"
#include "iptraps.h"
#include "QLip.h"
#include "xc68.h"
#include "qx_proto.h"
/* some (many?) OS's don't know this yet ...*/
#ifdef SOLARIS
int getdomainname(char *name, size_t len)
{
char *p=getenv("DOMAIN");
if (strlen(p) > len)
{
errno=EINVAL;
return -1;
}
strncpy(name,p,len);
return 0;
}
#endif
#define IPDEBUGGER 1
#ifdef IPDEBUGGER
# define IPDEBUG(a) printf a
#else
# define IPDEBUG(a)
#endif
static open_arg ip_par[2];
int ip_init(int idx, void *p)
{
return 0;
}
int ip_test(int id,char *name)
{
int res=decode_name(name,Drivers[id].namep,ip_par);
if (res)
printf("ip_test: matched %s",name);
return res;
}
extern char *a0addr(Cond check);
int ip_open(int id, void **priv)
{
int qerr = 0;
int fd, rv = -1;
char *host = NULL;
char *aport = NULL;
u_short port = 0;
struct sockaddr_in name;
int cnstatus;
static const char *dnms[] = {"*tcp,","*udp","*uxs","*uxd","*sck",NULL};
const char **dp;
short dindx;
host = ip_par[0].s;
aport = ip_par[1].s;
for(dindx = 0, dp = dnms; *dp; dp++,dindx++)
{
if(strncasecmp(Drivers[id].namep->name, *dp, 4) == 0)
break;
}
if(dindx < 4 && (reg[3] >= 0 && reg[3] < 4))
{
int proto = (dindx & 1) ? SOCK_DGRAM : SOCK_STREAM;
int domain = (dindx < 2) ? AF_INET : AF_UNIX;
/* Just use 0 for protocol, like GNU tell us */
if((fd = socket (domain, proto, 0)) != -1)
{
cnstatus=-2; /* no connection yet*/
if(reg[3] && host && aport)
{
struct hostent *h;
struct servent *s;
if((h = gethostbyname(host)) != NULL)
{
int (*func)();
s = getservbyname(aport, (dindx & 1) ? "udp" : "tcp");
port = (s) ? s->s_port : htons(atoi(aport));
if(port)
{
func = (reg[3] > 1) ? bind : connect;
name.sin_family = h->h_addrtype;
name.sin_port = port;
name.sin_addr = *((struct in_addr *) h->h_addr);
rv = (func) (fd, (struct sockaddr *) &name,
sizeof(struct sockaddr_in));
/*printf("connect, result %d, errno %d, status %d\n",rv,errno,cnstatus);*/
/*if (rv<0) perror("connect/bind problem");*/
if (rv==0) cnstatus=0; /* connection complete */
if (rv<0 && reg[3]==1 && errno==EINTR)
{
cnstatus=-1;
rv=0;
}
/*printf("\t\t res %d, status %d\n",rv,cnstatus);*/
}
else rv = -1;
}
if(h == NULL || rv == -1)
{
qerr = qmaperr();
close(fd);
}
}
}
else qerr = qmaperr ();
}
else if( dindx == 4)
{
if(reg[3] > 4)
{
int nlen = sizeof(name);
char *f;
int a0 = aReg[0];
ipdev_t *ip;
w32 scht;
/*QLtrap(1, 0, 20000l); */ /*sysvars are (a6) ..*/
scht = RL((Ptr)theROM+aReg[6]+0x78);
aReg[0] = RL((Ptr)theROM+scht + ((reg[3] & 0xffff) << 2));
/* !!! ADD USUAL ERROR CHECKING !!! */
f = a0addr(0);
ip = DGET_PRIV(f);
fd = accept(ip->sock, (struct sockaddr *) &name, &nlen);
aReg[0] = a0;
if(fd > 0)
{
qerr = 0;
cnstatus=0; /* accept doesn't support async mode ...*/
}
else
qerr = qmaperr ();
}
else
{
qerr = 0;
fd = -1;
}
}
else qerr = QERR_BP;
if(qerr == 0)
{
*priv=malloc(sizeof(ipdev_t));
((ipdev_t *)(*priv))->sock = fd;
((ipdev_t *)(*priv))->name = name;
((ipdev_t *)(*priv))->status = cnstatus;
((ipdev_t *)(*priv))->lerrno = 0;
}
else
{
reg[0] = qerr;
*priv = NULL;
}
return qerr;
}
void static check_status(ipdev_t *s)
{
struct timeval tv;
fd_set wfd,errfd;
int res;
/*printf("calling check_status, status %d\n",s->status);*/
if (s->status==-1)
{
if (check_pend(s->sock,SLC_WRITE)>0)
s->status=0;
else if (check_pend(s->sock,SLC_ERR)>0)
{
int e = sizeof(errno);
s->status=-2;
perror("asynchronous connect ");
printf("getsockopt res %d\n",getsockopt(s->sock,SOL_SOCKET,SO_ERROR,&errno,&e));
}
/*printf("check_status returns, status %d\n",s->status);*/
}
}
int ip_pend(ipdev_t *p)
{
if (p->status==-1)
check_status(p);
switch (p->status)
{
case 0: case -2:
if (check_pend(p->sock,SLC_READ)) return 0;
else return QERR_NC;
/*return pendingio(p->sock);*/
/* case -2: return QERR_TE;*/
case -1: return QERR_NC;
}
}
#if 0
static int ipwriteio (ipdev_t * sd, void *buf, long *pno)
{
int no = *pno;
int nw;
int res;
short done = 0;
int nr = no;
int sum = 0;
int sts;
if (no==0) nr=0;
if (sd->status == -1)
check_status(sd);
switch (sd->status)
{
case -1: return QERR_NC;
case -2: return QERR_TE;
}
while (!done)
{
res = write (sd->sock, buf, nr);
if (res <= 0)
{
if (res < 0)
{
if (errno == EINTR || errno == EAGAIN)
continue;
done=1;
sts = -6;
}
else
{
done = 1;
sts = 0;
}
}
else
{
sum += res;
if (sum == no)
{
done = 1;
sts = 0;
}
(char *) buf += res;
}
}
*pno = sum;
return sts;
}
#endif
#if 0
static int ipreadio (ipdev_t * sd, void *buf, long *pno, short tc)
{
int no = *pno;
int res;
short done = 0;
int nr;
int sum = 0;
int nn;
int sts;
char *xx =buf;
if(*pno <=0)
{
done=1;
sts=0;
}
/*printf("ipreadio , status %d\n",sd->status);*/
if (sd->status == -1)
check_status(sd);
switch (sd->status)
{
case -1: *pno=0;return QERR_NC;
case -2: *pno=0;return QERR_TE;
}
#ifndef SOLARIS
res = ioctl (sd->sock, FIONREAD, &nn);
if (res)
{
sts = -6;
puts("shagged");
}
else
#endif
{
if (nn < no)
no = nn;
if(no > 0)
{
nr = (tc) ? 1 : no;
while (!done)
{
res = read (sd->sock, buf, nr);
if (res <= 0)
{
done = 1;
switch (errno)
{
case EINTR:
case EAGAIN:
sts=0;
break;
default :
sts=QERR_TE;
break;
}
}
else
{
sum = res;
sts = 0;
done = 1;
}
}
}
else
sts = -1;
}
*pno = sum;
return sts;
}
#endif
static int ip_read(ipdev_t *sd, void *buf, int pno)
{
long count=pno;
long ci;
long res;
char *c;
ci=0;
c=buf;
/* printf ("ip_read called, len %d\n",pno);*/
#if 0
res=ipreadio(sd, c, &count,0);
if (!res || count>0 ) return count;
else return res;
#else
res=read(sd->sock,buf,pno);
/*printf("read res %d\n",res);*/
/*if (res<0) perror("read"); */
if (res<0) res=qmaperr();
return res;
#endif
}
static int ip_write(ipdev_t *sd, void *buf, int pno)
{
long count=pno;
long res;
#if 0
res=ipwriteio(sd, buf, &count);
if (!res || count>0 ) return count;
else return res;
#else
res=write(sd->sock,buf,pno);
/*printf("write res %d\n",res);*/
/*if (res<0) perror("write"); */
if (res<0) res=qmaperr();
return res;
#endif
}
#define QERRNO(__qerr, __res) __qerr = (__res < 0) ? qmaperr() : __res
void net_convert(struct netent *h1, struct netent *h2)
{
int i,m,n;
char *h,*hql;
h = (char *)h2 + sizeof(struct netent);
hql = h - (int)theROM;
#if 1/*def O3BUG */
WL((w32 *)&h2->n_name, (w32)hql);
#else
h2->n_name = (char *)htonl((int)hql);
#endif
m = 1+strlen(h1->n_name);
strcpy(h, h1->n_name);
m = (m + 3) & ~3;
h = h + m;
hql = hql + m;
{
char **q,*s,*sql;
int l;
s = h;
for(q = h1->n_aliases;*q; q++)
{
strcpy(s, *q);
s = s + 1 + strlen(s);
}
l = s-h;
l = (l + 3) & ~3;
sql = hql + l;
s = h + l;
#if 1/*def O3BUG*/
WL((w32*)&h2->n_aliases, (w32)sql);
#else
h2->n_aliases = (void *)htonl((int)sql);
#endif
for(q = h1->n_aliases;*q; q++)
{
#if 1 /*def O3BUG*/
WL((w32*)s, (w32)hql);
#else
*(char **)s = (char *)htonl((int)hql);
#endif
s += sizeof(int);
hql = hql + 1 + strlen(*q);
}
WL((w32*)s,0);
/* *(w32*)s = 0; */
}
WL(&h2->n_addrtype, h1->n_addrtype);
WL((w32*)&h2->n_net, h1->n_net);
}
void proto_convert(struct protoent *h1, struct protoent *h2)
{
int i,m,n;
char *h,*hql;
h = (char *)h2 + sizeof(struct protoent);
hql = h - (int)theROM;
#if 1 /*def O3BUG */
WL((w32 *)&h2->p_name, (w32)hql);
#else
h2->p_name = (char *)htonl((int)hql);
#endif
m = 1+strlen(h1->p_name);
strcpy(h, h1->p_name);
m = (m + 3) & ~3;
h = h + m;
hql = hql + m;
{
char **q,*s,*sql;
int l;
s = h;
for(q = h1->p_aliases;*q; q++)
{
strcpy(s, *q);
s = s + 1 + strlen(s);
}
l = s-h;
l = (l + 3) & ~3;
sql = hql + l;
s = h + l;
#if 1 /*def O3BUG */
WL((w32*)&h2->p_aliases, (w32)sql);
#else
h2->p_aliases = (void *)htonl((int)sql);
#endif
for(q = h1->p_aliases;*q; q++)
{
#if 1 /*def O3BUG */
WL((w32*)s, (w32)hql);
#else
*(char **)s = (char *)htonl((int)hql);
#endif
s += sizeof(int);
hql = hql + 1 + strlen(*q);
}
WL((w32*)s,0);
/* *(w32*)s = 0; */
}
WL(&h2->p_proto, h1->p_proto);
}
void serv_convert(struct servent *h1, struct servent *h2)
{
int i,m,n;
char *h,*hql;
h = (char *)h2 + sizeof(struct servent);
hql = h - (int)theROM;
#if 1 /*def O3BUG */
WL((w32 *)&h2->s_name, (w32)hql);
#else
h2->s_name = (char *)htonl((int)hql);
#endif
m = 1+strlen(h1->s_name);
strcpy(h, h1->s_name);
h = h + m;
hql = hql + m;
#if 1 /*def O3BUG */
WL((w32 *)&h2->s_proto, (w32)hql);
#else
h2->s_proto = (char *)htonl((int)hql);
#endif
m = 1+strlen(h1->s_proto);
strcpy(h, h1->s_proto);
m = (m + 3) & ~3;
h = h + m;
hql = hql + m;
{
char **q,*s,*sql;
int l;
s = h;
for(q = h1->s_aliases;*q; q++)
{
strcpy(s, *q);
s = s + 1 + strlen(s);
}
l = s-h;
l = (l + 3) & ~3;
sql = hql + l;
s = h + l;
#if 1 /*def O3BUG */
WL((w32*)&h2->s_aliases, (w32)sql);
#else
h2->s_aliases = (void *)htonl((int)sql);
#endif
for(q = h1->s_aliases;*q; q++)
{
#if 1 /*def O3BUG */
WL((w32*)s, (w32)hql);
#else
*(char **)s = (char *)htonl((int)hql);
#endif
s += sizeof(int);
hql = hql + 1 + strlen(*q);
}
WL((w32*)s,0);
/* *(w32*)s = 0;*/
}
WL(&h2->s_port, ntohs(h1->s_port));
}
#if 1
void host_convert(struct hostent *h1, struct hostent *h2)
{
int i,m,n;
char *h,*hql;
int tmp;
h = (char *)h2 + sizeof(struct hostent); /* start of free space */
hql = h - (int)theROM; /* address in QDOS */
#if 1 /* def O3BUG */
WL((w32 *)&h2->h_name, (w32)hql); /* set address for name */
#else
h2->h_name = (char *)htonl((int)hql);
#endif
m = 1+strlen(h1->h_name); /* length + 0 */
strcpy(h, h1->h_name); /* copy in name */
m = (m + 3) & ~3; /* get long address */
h = h + m; /* next free */
hql = hql + m; /* next free in QDOS speak */
#if 1 /* def O3BUG */
WL((w32 *)&h2->h_addr_list, (w32)hql); /* set addr list for QDOS */
#else
h2->h_addr_list = (void*)htonl((int)hql);
#endif
for(i = 0; h1->h_addr_list[i];i++) /* loop for addresses */
; /* count aliases */
n = i+1;
for(i = 0; h1->h_addr_list[i];i++) /* loop for addresses */
{
int x;
memcpy(&x,h1->h_addr_list[i],sizeof(int)); /* ip in net format */
#if 1 /*def O3BUG */
WL((w32 *)h, (w32)(hql+n*sizeof(int))); /* set up address */
#else
*(char **)h = (void*)htonl((int)hql+n*sizeof(int));
#endif
memcpy(h+n*sizeof(int),&x,sizeof(int)); /* copy in net order addr */
h += sizeof(int); /* next free */
hql += sizeof(int); /* ditto */
}
/* Ensure list is terminated */
WL((w32 *)h, 0); /* set up address */
h += n*sizeof(int);
hql += n*sizeof(int);
{
char **q,*s,*sql;
int l;
s = h;
for(q = h1->h_aliases;*q; q++)
{
strcpy(s, *q);
s = s + 1 + strlen(s);
}
l = s-h;
l = (l + 3) & ~3;
sql = hql + l;
s = h + l;
#if 1 /* def O3BUG */
WL((w32*)&h2->h_aliases, (w32)sql);
#else
h2->h_aliases = (void*)htonl((int)sql);
#endif
for(q = h1->h_aliases;*q; q++)
{
#if 1 /* def O3BUG */
WL((w32*)s, (w32)hql);
#else
*(char **)s = (void*)htonl((int)hql);
#endif
s += sizeof(int);
hql = hql + 1 + strlen(*q);
}
WL((w32*)s,0);
/* *(w32*)s = 0;*/
}
WL(&h2->h_addrtype, h1->h_addrtype);
WL(&h2->h_length, h1->h_length);
}
#else
void host_convert(struct hostent *h1, struct hostent *h2)
{
int i,m,n;
char *h,*hql;
int tmp;
n = sizeof(int)+h1->h_length;
h = (char *)h2 + sizeof(struct hostent);
hql = h - (int)theROM;
WL((w32 *)&h2->h_name, (w32)hql);
m = 1+strlen(h1->h_name);
strcpy(h, h1->h_name);
m = (m + 3) & ~3;
h = h + m;
hql = hql + m;
WL((w32 *)&h2->h_addr_list, (w32)hql);
for(i = 0;i<1/*h1->h_addr_list[i]*/;i++)
{
int x;
/*x = *(int *)h1->h_addr_list[i];*/
memcpy(&x,h1->h_addr_list[i],sizeof(int));
WL((w32 *)h, (w32)(hql+n));
/* *(int *)(h+n) = x; */
memcpy(h+n,&x,sizeof(int));
h += sizeof(int);
hql += sizeof(int);
if(x == 0) break;
}
/* *(w32 *)h = 0;*/
WL((w32 *)h,0);
h += n+sizeof(int);
hql += n+sizeof(int);
{
char **q,*s,*sql;
int l;
s = h;
for(q = h1->h_aliases;*q; q++)
{
strcpy(s, *q);
s = s + 1 + strlen(s);
}
l = s-h;
l = (l + 3) & ~3;
sql = hql + l;
s = h + l;
WL((w32*)&h2->h_aliases, (w32)sql);
for(q = h1->h_aliases;*q; q++)
{
WL((w32*)s, (w32)hql);
s += sizeof(int);
hql = hql + 1 + strlen(*q);
}
WL((w32*)s,0);
/* *(w32*)s = 0;*/
}
WL(&h2->h_addrtype, h1->h_addrtype);
WL(&h2->h_length, h1->h_length);
}
#endif
static int ip_gethostbyname(const char *name, struct hostent *h)
{
int qerr = 0;
struct hostent *ph;
ph = gethostbyname(name);
if(ph)
{
host_convert(ph, h);
}
else
{
qerr = -15;
}
return qerr;
}
static int ip_gethostbyaddr(const char *addr, int len, int type,
struct hostent *h)
{
int qerr = 0;
struct hostent *ph;
ph = gethostbyaddr(addr, len, type);
if(ph)
{
host_convert(ph, h);
}
else
{
qerr = -15;
}
return qerr;
}
static int ip_sethostent(int stayopen)
{
sethostent(stayopen);
return 0;
}
static int ip_endhostent(void)
{
endhostent();
return 0;
}
static int ip_h_errno(int *s)
{
*s = h_errno;
return 0;
}
static int ip_h_strerror(char *s)
{
switch(h_errno)
{
case HOST_NOT_FOUND:
strcpy(s,"Host not found");
break;
case NO_ADDRESS:
strcpy(s,"No address");
break;
case NO_RECOVERY:
strcpy(s,"No recovery");
break;
case TRY_AGAIN:
strcpy(s,"Try again");
break;
}
return 0;
}
static int ip_gethostname (char *buf, int len)
{
int qerr,res;
res = gethostname(buf, len);
QERRNO(qerr,res);
return qerr;
}
static int ip_getdomainname (char *buf, int len)
{
int qerr,res;
res = getdomainname(buf, len);
QERRNO(qerr,res);
return qerr;
}
static int ip_getservent(struct servent *s)
{
int qerr = 0;
struct servent *ps;
ps = getservent();
if(ps)
serv_convert(ps, s);
else
qerr = -15;
return qerr;
}
static int ip_getservbyname(const char *name, const char *proto,
struct servent *s)
{
int qerr = 0;
struct servent *ps;
ps = getservbyname (name, proto);
if(ps)
serv_convert(ps, s);
else
qerr = -15;
return qerr;
}
static int ip_getservbyport(int port, const char *proto, struct servent *s)
{
int qerr = 0;
struct servent *ps;
ps = getservbyport (port, proto);
if(ps)
serv_convert(ps, s);
else
qerr = -15;
return qerr;
}
static int ip_setservent(int stayopen)
{
setservent(stayopen);
return 0;
}
static int ip_endservent(void)
{
endservent();
return 0;
}
static int ip_getnetent(struct netent *n)
{
int qerr = 0;
struct netent *pn;
pn = getnetent();
if(pn)
net_convert(pn, n);
else
qerr = -15;
return qerr;
}
static int ip_getnetbyname(const char *name, struct netent *n)
{
int qerr = 0;
struct netent *pn;
pn = getnetbyname (name);
if(pn)
net_convert(pn, n);
else
qerr = -15;
return qerr;
}
static int ip_getnetbyaddr(unsigned long net, int type, struct netent *n)
{
int qerr = 0;
struct netent *pn;
pn = getnetbyaddr(net, type);
if(pn)
net_convert(pn, n);
else
qerr = -15;
return qerr;
}
static int ip_setnetent(int stayopen)
{
setnetent(stayopen);
return 0;
}
static int ip_endnetent(void)
{
endnetent();
return 0;
}
static int ip_getprotoent(struct protoent *p)
{
int qerr = 0;
struct protoent *pp;
pp = getprotoent();
if(pp)
proto_convert(pp, p);
else
qerr = -15;
return qerr;
}
static int ip_getprotobyname(const char *name, struct protoent *p)
{
int qerr = 0;
struct protoent *pp;
pp = getprotobyname (name);
if(pp)
proto_convert(pp, p);
else
qerr = -15;
return qerr;
}