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Rework r191742.

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Use the protocol family constants for the domain argument validation.

Return EAFNOSUPPORT in case when the incorrect domain argument
is specified.

Return EPROTONOSUPPORT instead of passing values that are not 0
to the BSD layer.

Suggested by:   rwatson

Approved by:	kib (mentor)
MFC after:	1 month
This commit is contained in:
Dmitry Chagin 2009-05-07 03:23:22 +00:00
parent 426909d969
commit 1a52a4abf7
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=191871
1 changed files with 12 additions and 5 deletions
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17
sys/compat/linux/linux_socket.c
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@ -855,14 +855,21 @@ linux_socketpair(struct thread *td, struct linux_socketpair_args *args)
} */ bsd_args;
bsd_args.domain = linux_to_bsd_domain(args->domain);
if (bsd_args.domain == -1)
return (EINVAL);
if (bsd_args.domain != PF_LOCAL)
return (EAFNOSUPPORT);
bsd_args.type = args->type;
if (bsd_args.domain == AF_LOCAL && args->protocol == PF_UNIX)
bsd_args.protocol = 0;
if (args->protocol != 0 && args->protocol != PF_UNIX)
/*
* Use of PF_UNIX as protocol argument is not right,
* but Linux does it.
* Do not map PF_UNIX as its Linux value is identical
* to FreeBSD one.
*/
return (EPROTONOSUPPORT);
else
bsd_args.protocol = args->protocol;
bsd_args.protocol = 0;
bsd_args.rsv = (int *)PTRIN(args->rsv);
return (socketpair(td, &bsd_args));
}