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/*
* Copyright (c) 2022 Nicholas Marriott <nicholas.marriott@gmail.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <sys/socket.h>
#include <stdio.h>
#include <unistd.h>
#ifdef HAVE_UCRED_H
#include <ucred.h>
#endif
#include "compat.h"
int
getpeereid(int s, uid_t *uid, gid_t *gid)
{
#ifdef HAVE_SO_PEERCRED
struct ucred uc;
int len = sizeof uc;
if (getsockopt(s, SOL_SOCKET, SO_PEERCRED, &uc, &len) == -1)
return (-1);
*uid = uc.uid;
*gid = uc.gid;
return (0);
#elif defined(HAVE_GETPEERUCRED)
ucred_t *ucred = NULL;
if (getpeerucred(s, &ucred) == -1)
return (-1);
if ((*uid = ucred_geteuid(ucred)) == -1)
return (-1);
if ((*gid = ucred_getrgid(ucred)) == -1)
return (-1);
ucred_free(ucred);
return (0);
#else
*uid = geteuid();
*gid = getegid();
return (0);
#endif
}
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