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/* $NetBSD: pwgr.c,v 1.1 2012/03/17 16:33:14 jruoho Exp $ */
/*
* Copyright (c) 2007 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* This file implements replacements for all user/group-related functions
* called by id(1). It provides fake but deterministic user and group
* information. The details are as such:
* User root, uid 0, primary group 0 (wheel).
* User test, uid 100, primary group 100 (users), secondary group 0 (wheel).
*/
#include <sys/types.h>
#include <errno.h>
#include <grp.h>
#include <pwd.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
char Login[16];
struct group GrEntry;
struct passwd PwEntry;
gid_t
getgid(void)
{
return 100;
}
gid_t
getegid(void)
{
if (getenv("LIBFAKE_EGID_ROOT") != NULL)
return 0;
else
return 100;
}
uid_t
getuid(void)
{
return 100;
}
uid_t
geteuid(void)
{
if (getenv("LIBFAKE_EUID_ROOT") != NULL)
return 0;
else
return 100;
}
char *
getlogin(void)
{
strcpy(Login, "test");
return Login;
}
struct group *
getgrgid(gid_t gid)
{
struct group *g = &GrEntry;
memset(g, 0, sizeof(*g));
if (gid == 0) {
g->gr_name = __UNCONST("wheel");
g->gr_gid = 0;
} else if (gid == 100) {
g->gr_name = __UNCONST("users");
g->gr_gid = 100;
} else
g = NULL;
return g;
}
int
getgrouplist(const char *name, gid_t basegid, gid_t *groups, int *ngroups)
{
int cnt, ret;
if (strcmp(name, "root") == 0) {
if (*ngroups >= 1) {
groups[0] = basegid;
cnt = 1;
}
ret = (*ngroups >= cnt) ? 0 : -1;
*ngroups = cnt;
} else if (strcmp(name, "test") == 0) {
if (*ngroups >= 1) {
groups[0] = basegid;
cnt = 1;
}
if (*ngroups >= 2) {
groups[1] = 0;
cnt = 2;
}
ret = (*ngroups >= cnt) ? 0 : -1;
*ngroups = cnt;
} else
ret = -1;
return ret;
}
int
getgroups(int gidsetlen, gid_t *gidset)
{
if (gidsetlen < 2) {
errno = EINVAL;
return -1;
}
gidset[0] = 100;
gidset[1] = 0;
return 2;
}
struct passwd *
getpwnam(const char *login)
{
struct passwd *p = &PwEntry;
memset(p, 0, sizeof(*p));
if (strcmp(login, "root") == 0) {
p->pw_name = __UNCONST("root");
p->pw_uid = 0;
p->pw_gid = 0;
} else if (strcmp(login, "test") == 0) {
p->pw_name = __UNCONST("test");
p->pw_uid = 100;
p->pw_gid = 100;
} else
p = NULL;
return p;
}
struct passwd *
getpwuid(uid_t uid)
{
struct passwd *p = &PwEntry;
memset(p, 0, sizeof(*p));
if (uid == 0) {
p->pw_name = __UNCONST("root");
p->pw_uid = 0;
p->pw_gid = 0;
} else if (uid == 100) {
p->pw_name = __UNCONST("test");
p->pw_uid = 100;
p->pw_gid = 100;
} else
p = NULL;
return p;
}
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