In some email I received from Guy Harris, sie wrote: > On Wed, Feb 12, 2003 at 02:39:35PM +1100, Darren Reed wrote: > > I'm using libpcap-2002.12.08 on a RedHat 8.0 box and have come across an > > issue that I think is quite serious. > > > > In fad-getad.c > > So presumably this means that RH 8.0 has "getifaddrs()".
Yes: /usr/include/ifaddrs.h:extern int getifaddrs (struct ifaddrs **__ifap) __THROW; > > One solution to this is changing the #define from being > > "sizeof(struct sockaddr_storage)" to be something else - like this: > > #define SA_LEN(x) sizeof(*x) > > ....which works only if, on platforms with "struct sockaddr_storage" and > "getifaddrs()", and no "SA_LEN()" macro, no address is bigger than the > type of the addresses in the structure returned by "getifaddrs()". That > either means that > > 1) IPv6 isn't supported; I get a man page for ipv6(7)... > 2) "struct sockaddr" is big enough, in those systems, for an > IPv6 address; It's 64 bytes big. > 3) "struct ifaddrs", on that platform, doesn't have "struct > sockaddr" pointers in it. It does have them. I'll email you /usr/include/ifaddrs.h from RH8.0 separately. > Or is there some *other* way, on RH 8.0, of inquiring how big the > address pointed to by a pointer in a "struct ifaddrs" is? That I can't answer. Darren - This is the TCPDUMP workers list. It is archived at http://www.tcpdump.org/lists/workers/index.html To unsubscribe use mailto:[EMAIL PROTECTED]?body=unsubscribe
