76183f3453
spares (the size of the field was changed from u_short to u_int to reflect what it really ends up being). Accordingly, change users of xucred to set and check this field as appropriate. In the kernel, this is being done inside the new cru2x() routine which takes a `struct ucred' and fills out a `struct xucred' according to the former. This also has the pleasant sideaffect of removing some duplicate code. Reviewed by: rwatson
55 lines
1.8 KiB
C
55 lines
1.8 KiB
C
/*
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* Copyright (c) 2001 Dima Dorfman.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/socket.h>
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#include <sys/ucred.h>
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#include <sys/un.h>
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#include <errno.h>
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#include <unistd.h>
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int
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getpeereid(int s, uid_t *euid, gid_t *egid)
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{
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struct xucred xuc;
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socklen_t xuclen;
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int error;
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xuclen = sizeof(xuc);
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error = getsockopt(s, LOCAL_PEERCRED, 1, &xuc, &xuclen);
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if (error != 0)
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return (error);
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if (xuc.cr_version != XUCRED_VERSION)
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return (EINVAL);
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*euid = xuc.cr_uid;
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*egid = xuc.cr_gid;
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return (0);
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}
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