Messages in this thread |  | | Subject | Re: Redefinition of struct in6_addr in <netinet/in.h> and <linux/in6.h> | From | Cong Wang <> | Date | Thu, 17 Jan 2013 14:59:13 +0800 |
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On Thu, 2013-01-17 at 11:55 +0800, Jike Song wrote: > On Thu, Jan 17, 2013 at 2:59 AM, David Miller <davem@davemloft.net> wrote: > > > > > When GLIBC doesn't provide it's own definition of some networking > > macros or interfaces that the kernel provides, people include the > > kernel header. > > > > Recently I got a problem when copying a structure from kernel to userspace, > after debugging I found: > > kernel: include/linux/inet.h > > #define INET6_ADDRSTRLEN (48) > > glibc: /usr/include/netinet/in.h > > #define INET6_ADDRSTRLEN 46 > > > Any reason to differentiate them from each other? >
I see no reason, even although I don't know why it is 46 instead of 40.
But include/linux/inet.h is not exported to user-space, AFAIK.
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