diff options
Diffstat (limited to 'libc/sysdeps/unix/sysv/linux/bits/in.h')
| -rw-r--r-- | libc/sysdeps/unix/sysv/linux/bits/in.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/libc/sysdeps/unix/sysv/linux/bits/in.h b/libc/sysdeps/unix/sysv/linux/bits/in.h index e959b33ea..d763ce9fc 100644 --- a/libc/sysdeps/unix/sysv/linux/bits/in.h +++ b/libc/sysdeps/unix/sysv/linux/bits/in.h @@ -21,6 +21,18 @@ # error "Never use <bits/in.h> directly; include <netinet/in.h> instead." #endif +/* If the application has already included linux/in6.h from a linux-based + kernel then we will not define the IPv6 IPPROTO_* defines, in6_addr (nor the + defines), sockaddr_in6, or ipv6_mreq. The ABI used by the linux-kernel and + glibc match exactly. Neither the linux kernel nor glibc should break this + ABI without coordination. */ +#ifdef _UAPI_LINUX_IN6_H +/* This is not quite the same API since the kernel always defines s6_addr16 and + s6_addr32. This is not a violation of POSIX since POSIX says "at least the + following member" and that holds true. */ +# define __USE_KERNEL_IPV6_DEFS +#endif + /* Options for use with `getsockopt' and `setsockopt' at the IP level. The first word in the comment at the right is the data type used; "bool" means a boolean value stored in an `int'. */ |