Grok AF_LINK if defined.
From Momchil Velikov <velco@fadata.bg>.
* sysdeps/gnu/ifaddrs.c (getifaddrs): If ioctl fails for netmask,
brdaddr, or dstaddr, just set those pointers to null and don't fail.
Reported by Momchil Velikov <velco@fadata.bg>.
* sysdeps/generic/ifreq.h (__if_nextreq) [_HAVE_SA_LEN]: If sa_len
is > sizeof IFR->ifa_addr, advance past the whole longer length.
(__ifreq): Count up NIFS that way too.
Reported by Momchil Velikov <velco@fadata.bg>.
* sysdeps/mach/hurd/lchmod.c: Include <fcntl.h>.
2002-11-25 Roland McGrath <roland@redhat.com>
+ * inet/test-ifaddrs.c (main: addr_string): Handle null SA.
+ Grok AF_LINK if defined.
+ From Momchil Velikov <velco@fadata.bg>.
+
+ * sysdeps/gnu/ifaddrs.c (getifaddrs): If ioctl fails for netmask,
+ brdaddr, or dstaddr, just set those pointers to null and don't fail.
+ Reported by Momchil Velikov <velco@fadata.bg>.
+
+ * sysdeps/generic/ifreq.h (__if_nextreq) [_HAVE_SA_LEN]: If sa_len
+ is > sizeof IFR->ifa_addr, advance past the whole longer length.
+ (__ifreq): Count up NIFS that way too.
+ Reported by Momchil Velikov <velco@fadata.bg>.
+
+ * sysdeps/mach/hurd/lchmod.c: Include <fcntl.h>.
+
* sysdeps/mach/hurd/i386/init-first.c: Include <ldsodefs.h>
and <fpu_control.h>.
char abuf[64], mbuf[64], dbuf[64];
inline const char *addr_string (struct sockaddr *sa, char *buf)
{
+ if (sa == NULL)
+ return "<none>";
+
switch (sa->sa_family)
{
case AF_INET:
return inet_ntop (AF_INET6,
&((struct sockaddr_in6 *) sa)->sin6_addr,
buf, sizeof abuf);
+#ifdef AF_LINK
+ case AF_LINK:
+ return "<link>";
+#endif
case AF_UNSPEC:
return "---";
default:
#include <sys/socket.h>
#include <sys/ioctl.h>
+static inline struct ifreq *
+__if_nextreq (struct ifreq *ifr)
+{
+#ifdef _HAVE_SA_LEN
+ if (ifr->ifa_addr > sizeof ifr->ifa_addr)
+ return (struct ifreq *) ((char *) &ifr->ifa_addr + ifr->ifa_addr.sa_len);
+#endif
+ return ifr + 1;
+}
static inline void
__ifreq (struct ifreq **ifreqs, int *num_ifs, int sockfd)
}
while (rq_len < sizeof (struct ifreq) + ifc.ifc_len);
- nifs = ifc.ifc_len / sizeof (struct ifreq);
-
if (fd != sockfd)
__close (fd);
+#ifdef _HAVE_SA_LEN
+ struct ifreq *ifr = ifreqs;
+ nifs = 0;
+ while ((char *) ifr < ifc.ifc_buf + ifc.ifc_len)
+ {
+ ++nifs;
+ ifr = __if_nextreq (ifr);
+ if (ifr == NULL)
+ break;
+ }
+#else
+ nifs = ifc.ifc_len / sizeof (struct ifreq);
+#endif
+
*num_ifs = nifs;
*ifreqs = realloc (ifc.ifc_buf, nifs * sizeof (struct ifreq));
}
-static inline struct ifreq *
-__if_nextreq (struct ifreq *ifr)
-{
- return ifr + 1;
-}
-
-
static inline void
__if_freereq (struct ifreq *ifreqs, int num_ifs)
{
ifr = ifreqs;
do
{
- /* Fill in all pointers to the storage we've already allocated. */
+ /* Fill in pointers to the storage we've already allocated. */
storage[i].ia.ifa_next = &storage[i + 1].ia;
storage[i].ia.ifa_addr = &storage[i].addr;
- storage[i].ia.ifa_netmask = &storage[i].netmask;
- storage[i].ia.ifa_broadaddr = &storage[i].broadaddr; /* & dstaddr */
/* Now copy the information we already have from SIOCGIFCONF. */
storage[i].ia.ifa_name = strncpy (storage[i].name, ifr->ifr_name,
ifr->ifr_addr = storage[i].addr;
if (__ioctl (fd, SIOCGIFNETMASK, ifr) < 0)
- break;
- storage[i].netmask = ifr->ifr_netmask;
+ storage[i].ia.ifa_netmask = NULL;
+ else
+ {
+ storage[i].ia.ifa_netmask = &storage[i].netmask;
+ storage[i].netmask = ifr->ifr_netmask;
+ }
if (ifr->ifr_flags & IFF_BROADCAST)
{
ifr->ifr_addr = storage[i].addr;
if (__ioctl (fd, SIOCGIFBRDADDR, ifr) < 0)
- break;
- storage[i].broadaddr = ifr->ifr_broadaddr;
+ storage[i].ia.ifa_broadaddr = NULL;
+ {
+ storage[i].ia.ifa_broadaddr = &storage[i].broadaddr;
+ storage[i].broadaddr = ifr->ifr_broadaddr;
+ }
}
else if (ifr->ifr_flags & IFF_POINTOPOINT)
{
ifr->ifr_addr = storage[i].addr;
if (__ioctl (fd, SIOCGIFDSTADDR, ifr) < 0)
- break;
- storage[i].broadaddr = ifr->ifr_dstaddr;
+ storage[i].ia.ifa_broadaddr = NULL;
+ else
+ {
+ storage[i].ia.ifa_broadaddr = &storage[i].broadaddr;
+ storage[i].broadaddr = ifr->ifr_dstaddr;
+ }
}
else
- /* Just 'cause. */
- memset (&storage[i].broadaddr, 0, sizeof storage[i].broadaddr);
+ storage[i].ia.ifa_broadaddr = NULL;
storage[i].ia.ifa_data = NULL; /* Nothing here for now. */