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| author | Ulrich Drepper <drepper@redhat.com> | 2008-07-23 21:29:42 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-24 10:47:29 -0700 |
| commit | e38b36f325153eaadd1c2a7abc5762079233e540 (patch) | |
| tree | 92cfc9855e41c5328d91456f5e373c00ecb8d383 /net/socket.c | |
| parent | 510df2dd482496083e1c3b1a8c9b6afd5fa4c7d7 (diff) | |
| download | lwn-e38b36f325153eaadd1c2a7abc5762079233e540.tar.gz lwn-e38b36f325153eaadd1c2a7abc5762079233e540.zip | |
flag parameters: check magic constants
This patch adds test that ensure the boundary conditions for the various
constants introduced in the previous patches is met. No code is generated.
[akpm@linux-foundation.org: fix alpha]
Signed-off-by: Ulrich Drepper <drepper@redhat.com>
Acked-by: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk.manpages@googlemail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'net/socket.c')
| -rw-r--r-- | net/socket.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/net/socket.c b/net/socket.c index 31105f9048a8..1310a82cbba7 100644 --- a/net/socket.c +++ b/net/socket.c @@ -1222,6 +1222,12 @@ asmlinkage long sys_socket(int family, int type, int protocol) struct socket *sock; int flags; + /* Check the SOCK_* constants for consistency. */ + BUILD_BUG_ON(SOCK_CLOEXEC != O_CLOEXEC); + BUILD_BUG_ON((SOCK_MAX | SOCK_TYPE_MASK) != SOCK_TYPE_MASK); + BUILD_BUG_ON(SOCK_CLOEXEC & SOCK_TYPE_MASK); + BUILD_BUG_ON(SOCK_NONBLOCK & SOCK_TYPE_MASK); + flags = type & ~SOCK_TYPE_MASK; if (flags & ~(SOCK_CLOEXEC | SOCK_NONBLOCK)) return -EINVAL; |