From: Cong Wang <amwang@redhat.com>
To: Jike Song <albcamus@gmail.com>
Cc: David Miller <davem@davemloft.net>,
vapier@gentoo.org, bhutchings@solarflare.com,
libc-alpha@sourceware.org, yoshfuji@linux-ipv6.org,
tmb@mageia.org, eblake@redhat.com, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, libvirt-list@redhat.com,
tgraf@suug.ch, schwab@suse.de, carlos@systemhalted.org
Subject: Re: Redefinition of struct in6_addr in <netinet/in.h> and <linux/in6.h>
Date: Thu, 17 Jan 2013 14:59:13 +0800 [thread overview]
Message-ID: <1358405953.2547.3.camel@cr0> (raw)
In-Reply-To: <CANE52KhF17WRZTUbrjRDnwcbdN+V+69=ZqXjBwPjnswEO5iz7g@mail.gmail.com>
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.
next prev parent reply other threads:[~2013-01-17 6:59 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-13 18:38 if_bridge.h: include in6.h for struct in6_addr use Thomas Backlund
2013-01-13 20:05 ` Thomas Backlund
2013-01-14 23:57 ` [libvirt] " Eric Blake
2013-01-15 10:03 ` [libvirt] the patch "bridge: export multicast database via netlink" broke kernel 3.8 uapi (was: Re: if_bridge.h: include in6.h for struct in6_addr use) Thomas Backlund
2013-01-15 10:11 ` the patch "bridge: export multicast database via netlink" broke kernel 3.8 uapi (was: Re: [libvirt] " Cong Wang
2013-01-15 10:55 ` the patch "bridge: export multicast database via netlink" broke kernel 3.8 uapi Thomas Backlund
2013-01-16 5:51 ` Cong Wang
2013-01-16 6:06 ` Redefinition of struct in6_addr in <netinet/in.h> and <linux/in6.h> Cong Wang
2013-01-16 14:21 ` YOSHIFUJI Hideaki
2013-01-16 15:47 ` Ben Hutchings
2013-01-16 17:04 ` Mike Frysinger
2013-01-16 17:10 ` Ben Hutchings
2013-01-16 17:28 ` Mike Frysinger
2013-01-16 18:59 ` David Miller
2013-01-16 19:22 ` Mike Frysinger
2013-01-16 19:25 ` David Miller
2013-01-17 3:40 ` Cong Wang
2013-01-17 3:55 ` [libvirt] " Jike Song
2013-01-17 6:59 ` Cong Wang [this message]
2013-01-17 7:02 ` Cong Wang
2013-01-16 18:57 ` David Miller
2013-01-16 19:29 ` Mike Frysinger
2013-01-17 2:15 ` Carlos O'Donell
2013-01-17 3:10 ` YOSHIFUJI Hideaki
2013-01-17 3:15 ` David Miller
2013-01-18 4:20 ` Mike Frysinger
2013-01-18 4:22 ` Carlos O'Donell
2013-01-18 4:34 ` Mike Frysinger
2013-01-18 10:44 ` Pedro Alves
2013-01-18 13:35 ` Carlos O'Donell
2013-01-18 14:24 ` YOSHIFUJI Hideaki
2013-01-18 14:36 ` Pedro Alves
2013-01-18 14:54 ` Carlos O'Donell
2013-01-21 0:54 ` Mike Frysinger
2013-01-17 3:22 ` YOSHIFUJI Hideaki
2013-01-18 4:13 ` Carlos O'Donell
2013-01-16 21:45 ` David Miller
2013-01-17 1:58 ` Carlos O'Donell
2013-01-17 2:05 ` David Miller
2013-01-17 10:57 ` Jan Engelhardt
2013-01-18 4:14 ` Mike Frysinger
2013-01-18 4:55 ` David Miller
2013-01-18 5:27 ` Mike Frysinger
2013-03-13 15:17 ` [libvirt] if_bridge.h: include in6.h for struct in6_addr use Kumar Gala
2013-03-13 16:24 ` Eric Blake
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