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* net.cc (get_2k_ifconf): Change multiple IP address naming scheme 

to Linux style.

	Patch by Alexander Gottwald <ago@informatik.tu-chemnitz.de>:
        * net.cc (get_2k_ifconf): Added support for multiple IP addresses on
        one interface.
This commit is contained in:
Corinna Vinschen 2001-10-22 12:23:33 +00:00
parent 8b6234ca12
commit c270dc2555
2 changed files with 98 additions and 74 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,13 @@
2001-10-22 Corinna Vinschen <corinna@vinschen.de>
* net.cc (get_2k_ifconf): Change multiple IP address naming scheme
to Linux style.
Sun Oct 21 19:04:37 2001 Alexander Gottwald <ago@informatik.tu-chemnitz.de>
* net.cc (get_2k_ifconf): Added support for multiple IP addresses on
one interface.
2001-10-22 Corinna Vinschen <corinna@vinschen.de>
* miscfuncs.cc (__check_invalid_read_ptr_errno): Return error, if any.

162
winsup/cygwin/net.cc
View File

@ -1551,7 +1551,7 @@ static void
get_2k_ifconf (struct ifconf *ifc, int what)
{
int cnt = 0;
char eth[2] = "/", ppp[2] = "/", slp[2] = "/";
char eth[2] = "/", ppp[2] = "/", slp[2] = "/", sub[2] = "0";
/* Union maps buffer to correct struct */
struct ifreq *ifr = ifc->ifc_req;
@ -1571,84 +1571,98 @@ get_2k_ifconf (struct ifconf *ifc, int what)
!GetIfTable(ift, &siz_if_table, TRUE) &&
!GetIpAddrTable(ipt, &siz_ip_table, TRUE))
{
/* Iterate over all known interfaces */
for (if_cnt = 0; if_cnt < ift->dwNumEntries; ++if_cnt)
{
switch (ift->table[if_cnt].dwType)
{
*sub = '0';
/* Iterate over all configured IP-addresses */
for (ip_cnt = 0; ip_cnt < ipt->dwNumEntries; ++ip_cnt)
{
case MIB_IF_TYPE_ETHERNET:
++*eth;
strcpy (ifr->ifr_name, "eth");
strcat (ifr->ifr_name, eth);
break;
case MIB_IF_TYPE_PPP:
++*ppp;
strcpy (ifr->ifr_name, "ppp");
strcat (ifr->ifr_name, ppp);
break;
case MIB_IF_TYPE_SLIP:
++*slp;
strcpy (ifr->ifr_name, "slp");
strcat (ifr->ifr_name, slp);
break;
case MIB_IF_TYPE_LOOPBACK:
strcpy (ifr->ifr_name, "lo");
break;
default:
continue;
}
for (ip_cnt = 0; ip_cnt < ipt->dwNumEntries; ++ip_cnt)
if (ipt->table[ip_cnt].dwIndex == ift->table[if_cnt].dwIndex)
{
switch (what)
{
case SIOCGIFCONF:
case SIOCGIFADDR:
sa = (struct sockaddr_in *) &ifr->ifr_addr;
sa->sin_addr.s_addr = ipt->table[ip_cnt].dwAddr;
sa->sin_family = AF_INET;
sa->sin_port = 0;
break;
case SIOCGIFBRDADDR:
sa = (struct sockaddr_in *) &ifr->ifr_broadaddr;
/* Does the IP address belong to the interface? */
if (ipt->table[ip_cnt].dwIndex == ift->table[if_cnt].dwIndex)
{
/* Setup the interface name */
switch (ift->table[if_cnt].dwType)
{
case MIB_IF_TYPE_ETHERNET:
if (*sub == '0')
++*eth;
strcpy (ifr->ifr_name, "eth");
strcat (ifr->ifr_name, eth);
break;
case MIB_IF_TYPE_PPP:
++*ppp;
strcpy (ifr->ifr_name, "ppp");
strcat (ifr->ifr_name, ppp);
break;
case MIB_IF_TYPE_SLIP:
++*slp;
strcpy (ifr->ifr_name, "slp");
strcat (ifr->ifr_name, slp);
break;
case MIB_IF_TYPE_LOOPBACK:
strcpy (ifr->ifr_name, "lo");
break;
default:
continue;
}
if (*sub > '0')
{
strcat (ifr->ifr_name, ":");
strcat (ifr->ifr_name, sub);
}
++*sub;
/* setup sockaddr struct */
switch (what)
{
case SIOCGIFCONF:
case SIOCGIFADDR:
sa = (struct sockaddr_in *) &ifr->ifr_addr;
sa->sin_addr.s_addr = ipt->table[ip_cnt].dwAddr;
sa->sin_family = AF_INET;
sa->sin_port = 0;
break;
case SIOCGIFBRDADDR:
sa = (struct sockaddr_in *) &ifr->ifr_broadaddr;
#if 0
/* Unfortunately, the field returns only crap. */
sa->sin_addr.s_addr = ipt->table[ip_cnt].dwBCastAddr;
/* Unfortunately, the field returns only crap. */
sa->sin_addr.s_addr = ipt->table[ip_cnt].dwBCastAddr;
#else
lip = ipt->table[ip_cnt].dwAddr;
lnp = ipt->table[ip_cnt].dwMask;
sa->sin_addr.s_addr = lip & lnp | ~lnp;
sa->sin_family = AF_INET;
sa->sin_port = 0;
lip = ipt->table[ip_cnt].dwAddr;
lnp = ipt->table[ip_cnt].dwMask;
sa->sin_addr.s_addr = lip & lnp | ~lnp;
sa->sin_family = AF_INET;
sa->sin_port = 0;
#endif
break;
case SIOCGIFNETMASK:
sa = (struct sockaddr_in *) &ifr->ifr_netmask;
sa->sin_addr.s_addr = ipt->table[ip_cnt].dwMask;
sa->sin_family = AF_INET;
sa->sin_port = 0;
break;
case SIOCGIFHWADDR:
so = &ifr->ifr_hwaddr;
for (UINT i = 0; i < IFHWADDRLEN; ++i)
if (i >= ift->table[if_cnt].dwPhysAddrLen)
so->sa_data[i] = '\0';
else
so->sa_data[i] = ift->table[if_cnt].bPhysAddr[i];
so->sa_family = AF_INET;
break;
case SIOCGIFMETRIC:
ifr->ifr_metric = 1;
break;
case SIOCGIFMTU:
ifr->ifr_mtu = ift->table[if_cnt].dwMtu;
break;
}
++cnt;
if ((caddr_t) ++ifr >
ifc->ifc_buf + ifc->ifc_len - sizeof (struct ifreq))
goto done;
break;
}
break;
case SIOCGIFNETMASK:
sa = (struct sockaddr_in *) &ifr->ifr_netmask;
sa->sin_addr.s_addr = ipt->table[ip_cnt].dwMask;
sa->sin_family = AF_INET;
sa->sin_port = 0;
break;
case SIOCGIFHWADDR:
so = &ifr->ifr_hwaddr;
for (UINT i = 0; i < IFHWADDRLEN; ++i)
if (i >= ift->table[if_cnt].dwPhysAddrLen)
so->sa_data[i] = '\0';
else
so->sa_data[i] = ift->table[if_cnt].bPhysAddr[i];
so->sa_family = AF_INET;
break;
case SIOCGIFMETRIC:
ifr->ifr_metric = 1;
break;
case SIOCGIFMTU:
ifr->ifr_mtu = ift->table[if_cnt].dwMtu;
break;
}
++cnt;
if ((caddr_t) ++ifr >
ifc->ifc_buf + ifc->ifc_len - sizeof (struct ifreq))
goto done;
}
}
}
}
done: