[openssh.git] / openbsd-compat / bsd-getpeereid.c

/*
 * Copyright (c) 2002,2004 Damien Miller <djm@mindrot.org>
 *
 * 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 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 "includes.h"

#if !defined(HAVE_GETPEEREID)

#include <sys/types.h>
#include <sys/socket.h>

#include <unistd.h>

#if defined(SO_PEERCRED)
int
getpeereid(int s, uid_t *euid, gid_t *gid)
{
	struct ucred cred;
	socklen_t len = sizeof(cred);

	if (getsockopt(s, SOL_SOCKET, SO_PEERCRED, &cred, &len) < 0)
		return (-1);
	*euid = cred.uid;
	*gid = cred.gid;

	return (0);
}
#elif defined(HAVE_GETPEERUCRED)

#ifdef HAVE_UCRED_H
# include <ucred.h>
#endif

int
getpeereid(int s, uid_t *euid, gid_t *gid)
{
	ucred_t *ucred = NULL;

	if (getpeerucred(s, &ucred) == -1)
		return (-1);
	if ((*euid = ucred_geteuid(ucred)) == -1)
		return (-1);
	if ((*gid = ucred_getrgid(ucred)) == -1)
		return (-1);

	ucred_free(ucred);

	return (0);
}
#else
int
getpeereid(int s, uid_t *euid, gid_t *gid)
{
	*euid = geteuid();
	*gid = getgid();

	return (0);
}
#endif /* defined(SO_PEERCRED) */

#endif /* !defined(HAVE_GETPEEREID) */
Commit	Line	Data
10a560d4	1	/*
9cd11896	2	* Copyright (c) 2002,2004 Damien Miller <djm@mindrot.org>
10a560d4	3	*
9cd11896	4	* Permission to use, copy, modify, and distribute this software for any
	5	* purpose with or without fee is hereby granted, provided that the above
	6	* copyright notice and this permission notice appear in all copies.
10a560d4	7	*
9cd11896	8	* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
	9	* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
	10	* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
	11	* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
	12	* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
	13	* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
	14	* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
10a560d4	15	*/
	16
	17	#include "includes.h"
	18
10a560d4	19	#if !defined(HAVE_GETPEEREID)
10a560d4	20
3a5b6088	21	#include <sys/types.h>
	22	#include <sys/socket.h>
	23
	24	#include <unistd.h>
	25
10a560d4	26	#if defined(SO_PEERCRED)
	27	int
	28	getpeereid(int s, uid_t euid, gid_t gid)
	29	{
	30	struct ucred cred;
8021857c	31	socklen_t len = sizeof(cred);
10a560d4	32
	33	if (getsockopt(s, SOL_SOCKET, SO_PEERCRED, &cred, &len) < 0)
	34	return (-1);
	35	*euid = cred.uid;
	36	*gid = cred.gid;
	37
	38	return (0);
	39	}
1961d660	40	#elif defined(HAVE_GETPEERUCRED)
	41
	42	#ifdef HAVE_UCRED_H
	43	# include <ucred.h>
	44	#endif
	45
	46	int
	47	getpeereid(int s, uid_t euid, gid_t gid)
	48	{
	49	ucred_t *ucred = NULL;
	50
	51	if (getpeerucred(s, &ucred) == -1)
	52	return (-1);
	53	if ((*euid = ucred_geteuid(ucred)) == -1)
	54	return (-1);
	55	if ((*gid = ucred_getrgid(ucred)) == -1)
	56	return (-1);
	57
	58	ucred_free(ucred);
	59
	60	return (0);
	61	}
10a560d4	62	#else
	63	int
	64	getpeereid(int s, uid_t euid, gid_t gid)
	65	{
	66	*euid = geteuid();
	67	*gid = getgid();
	68
	69	return (0);
	70	}
	71	#endif /* defined(SO_PEERCRED) */
	72
	73	#endif /* !defined(HAVE_GETPEEREID) */