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Importing usr.bin/id

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Replaces commands/id. No Minix-specific changes needed.

Change-Id: I307ae0fa3f41ade398ee9be12c1b4d78e8b59e95
This commit is contained in:
Thomas Cort
2013-11-12 08:40:59 -05:00
parent a0e6850f82
commit 4b9cc932b7
9 changed files with 21 additions and 16 deletions
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2
usr.bin/Makefile
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@@ -12,7 +12,7 @@ SUBDIR= asa \
env expand \
finger fold from \
fsplit ftp genassym getopt \
head hexdump indent infocmp join jot \
head hexdump id indent infocmp join jot \
lam ldd leave \
lock login logname lorder m4 \
machine make man menuc mesg \

11
usr.bin/id/Makefile Normal file
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@@ -0,0 +1,11 @@
# $NetBSD: Makefile,v 1.13 2011/08/16 10:37:21 christos Exp $
# from: @(#)Makefile 8.1 (Berkeley) 6/6/93
PROG= id
MAN= id.1 groups.1 whoami.1
LINKS= ${BINDIR}/id ${BINDIR}/groups
LINKS+= ${BINDIR}/id ${BINDIR}/whoami
COPTS.id.c += -Wno-format-nonliteral
.include <bsd.prog.mk>

62
usr.bin/id/groups.1 Normal file
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@@ -0,0 +1,62 @@
.\" $NetBSD: groups.1,v 1.9 2003/08/07 11:14:06 agc Exp $
.\"
.\" Copyright (c) 1991, 1993
.\" The Regents of the University of California. 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.
.\" 3. Neither the name of the University nor the names of its contributors
.\" may be used to endorse or promote products derived from this software
.\" without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
.\"
.\" from: @(#)groups.1 8.1 (Berkeley) 6/6/93
.\" $NetBSD: groups.1,v 1.9 2003/08/07 11:14:06 agc Exp $
.\"
.Dd June 6, 1993
.Dt GROUPS 1
.Os
.Sh NAME
.Nm groups
.Nd show group memberships
.Sh SYNOPSIS
.Nm
.Op Ar user
.Sh DESCRIPTION
The
.Nm
utility has been obsoleted by the
.Xr id 1
utility, and is equivalent to
.Dq Nm id Fl Gn Op Ar user .
The command
.Dq Nm id Fl p
is suggested for normal interactive use.
.Pp
The
.Nm
utility displays the groups to which you (or the optionally specified user)
belong.
.Pp
The
.Nm
utility exits 0 on success, and \*[Gt]0 if an error occurs.
.Sh SEE ALSO
.Xr id 1

138
usr.bin/id/id.1 Normal file
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@@ -0,0 +1,138 @@
.\" $NetBSD: id.1,v 1.12 2004/11/19 14:18:01 peter Exp $
.\"
.\" Copyright (c) 1991, 1993, 1994
.\" The Regents of the University of California. All rights reserved.
.\"
.\" This code is derived from software contributed to Berkeley by
.\" the Institute of Electrical and Electronics Engineers, Inc.
.\"
.\" 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.
.\" 3. Neither the name of the University nor the names of its contributors
.\" may be used to endorse or promote products derived from this software
.\" without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
.\"
.\" @(#)id.1 8.2 (Berkeley) 5/5/94
.\"
.Dd May 5, 1994
.Dt ID 1
.Os
.Sh NAME
.Nm id
.Nd return user identity
.Sh SYNOPSIS
.Nm
.Op Ar user
.Nm
.Fl G Op Fl n
.Op Ar user
.Nm
.Fl g Op Fl nr
.Op Ar user
.Nm
.Fl p
.Op Ar user
.Nm
.Fl u Op Fl nr
.Op Ar user
.Sh DESCRIPTION
The
.Nm
utility displays the user and group names and numeric IDs, of the
calling process, to the standard output.
If the real and effective IDs are different, both are displayed,
otherwise only the real ID is displayed.
.Pp
If a
.Ar user
(login name or user ID)
is specified, the user and group IDs of that user are displayed.
In this case, the real and effective IDs are assumed to be the same.
.Pp
The options are as follows:
.Bl -tag -width Ds
.It Fl G
Display the different group IDs (effective, real and supplementary)
as white-space separated numbers, in no particular order.
.It Fl g
Display the effective group ID as a number.
.It Fl n
Display the name of the user or group ID for the
.Fl G ,
.Fl g
and
.Fl u
options instead of the number.
If any of the ID numbers cannot be mapped into names, the number will be
displayed as usual.
.It Fl p
Make the output human-readable.
If the user name returned by
.Xr getlogin 2
is different from the login name referenced by the user ID, the name
returned by
.Xr getlogin 2
is displayed, preceded by the keyword ``login''.
The user ID as a name is displayed, preceded by the keyword ``uid''.
If the effective user ID is different from the real user ID, the real user
ID is displayed as a name, preceded by the keyword ``euid''.
If the effective group ID is different from the real group ID, the real group
ID is displayed as a name, preceded by the keyword ``rgid''.
The list of groups to which the user belongs is then displayed as names,
preceded by the keyword ``groups''.
Each display is on a separate line.
.It Fl r
Display the real ID for the
.Fl g
and
.Fl u
options instead of the effective ID.
.It Fl u
Display the effective user ID as a number.
.El
.Pp
The
.Nm
utility exits 0 on success, and \*[Gt]0 if an error occurs.
.Sh SEE ALSO
.Xr who 1
.Sh STANDARDS
The
.Nm
function is expected to conform to
.St -p1003.2 .
.Sh HISTORY
The
historic
.Xr groups 1
command is equivalent to
.Dq Nm id Fl Gn Op Ar user .
.Pp
The
historic
.Xr whoami 1
command is equivalent to
.Dq Nm id Fl un .
.Pp
The
.Nm
command first appeared in
.Bx 4.4 .

370
usr.bin/id/id.c Normal file
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@@ -0,0 +1,370 @@
/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. 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.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*/
#include <sys/cdefs.h>
#ifndef lint
__COPYRIGHT("@(#) Copyright (c) 1991, 1993\
The Regents of the University of California. All rights reserved.");
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "@(#)id.c 8.3 (Berkeley) 4/28/95";
#else
__RCSID("$NetBSD: id.c,v 1.32 2011/09/16 15:39:26 joerg Exp $");
#endif
#endif /* not lint */
#include <sys/param.h>
#include <err.h>
#include <errno.h>
#include <grp.h>
#include <pwd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
static void current(void);
static void pretty(struct passwd *);
static void group(struct passwd *, int);
__dead static void usage(void);
static void user(struct passwd *);
static struct passwd *who(char *);
static int maxgroups;
static gid_t *groups;
int
main(int argc, char *argv[])
{
struct group *gr;
struct passwd *pw;
int ch, id;
int Gflag, gflag, nflag, pflag, rflag, uflag;
const char *opts;
Gflag = gflag = nflag = pflag = rflag = uflag = 0;
if (strcmp(getprogname(), "groups") == 0) {
Gflag = 1;
nflag = 1;
opts = "";
if (argc > 2)
usage();
} else if (strcmp(getprogname(), "whoami") == 0) {
uflag = 1;
nflag = 1;
opts = "";
if (argc > 1)
usage();
} else
opts = "Ggnpru";
while ((ch = getopt(argc, argv, opts)) != -1)
switch (ch) {
case 'G':
Gflag = 1;
break;
case 'g':
gflag = 1;
break;
case 'n':
nflag = 1;
break;
case 'p':
pflag = 1;
break;
case 'r':
rflag = 1;
break;
case 'u':
uflag = 1;
break;
case '?':
default:
usage();
}
argc -= optind;
argv += optind;
switch (Gflag + gflag + pflag + uflag) {
case 1:
break;
case 0:
if (!nflag && !rflag)
break;
/* FALLTHROUGH */
default:
usage();
}
if (strcmp(opts, "") != 0 && argc > 1)
usage();
pw = *argv ? who(*argv) : NULL;
maxgroups = sysconf(_SC_NGROUPS_MAX);
if ((groups = malloc((maxgroups + 1) * sizeof(gid_t))) == NULL)
err(1, NULL);
if (gflag) {
id = pw ? pw->pw_gid : rflag ? getgid() : getegid();
if (nflag && (gr = getgrgid(id)))
(void)printf("%s\n", gr->gr_name);
else
(void)printf("%u\n", id);
goto done;
}
if (uflag) {
id = pw ? pw->pw_uid : rflag ? getuid() : geteuid();
if (nflag && (pw = getpwuid(id)))
(void)printf("%s\n", pw->pw_name);
else
(void)printf("%u\n", id);
goto done;
}
if (Gflag) {
group(pw, nflag);
goto done;
}
if (pflag) {
pretty(pw);
goto done;
}
if (pw)
user(pw);
else
current();
done:
free(groups);
return 0;
}
static void
pretty(struct passwd *pw)
{
struct group *gr;
u_int eid, rid;
char *login;
if (pw) {
(void)printf("uid\t%s\n", pw->pw_name);
(void)printf("groups\t");
group(pw, 1);
} else {
if ((login = getlogin()) == NULL)
err(1, "getlogin");
pw = getpwuid(rid = getuid());
if (pw == NULL || strcmp(login, pw->pw_name))
(void)printf("login\t%s\n", login);
if (pw)
(void)printf("uid\t%s\n", pw->pw_name);
else
(void)printf("uid\t%u\n", rid);
if ((eid = geteuid()) != rid) {
if ((pw = getpwuid(eid)) != NULL)
(void)printf("euid\t%s\n", pw->pw_name);
else
(void)printf("euid\t%u\n", eid);
}
if ((rid = getgid()) != (eid = getegid())) {
if ((gr = getgrgid(rid)) != NULL)
(void)printf("rgid\t%s\n", gr->gr_name);
else
(void)printf("rgid\t%u\n", rid);
}
(void)printf("groups\t");
group(NULL, 1);
}
}
static void
current(void)
{
struct group *gr;
struct passwd *pw;
gid_t gid, egid, lastid;
uid_t uid, euid;
int cnt, ngroups;
const char *fmt;
uid = getuid();
(void)printf("uid=%ju", (uintmax_t)uid);
if ((pw = getpwuid(uid)) != NULL)
(void)printf("(%s)", pw->pw_name);
gid = getgid();
(void)printf(" gid=%ju", (uintmax_t)gid);
if ((gr = getgrgid(gid)) != NULL)
(void)printf("(%s)", gr->gr_name);
if ((euid = geteuid()) != uid) {
(void)printf(" euid=%ju", (uintmax_t)euid);
if ((pw = getpwuid(euid)) != NULL)
(void)printf("(%s)", pw->pw_name);
}
if ((egid = getegid()) != gid) {
(void)printf(" egid=%ju", (uintmax_t)egid);
if ((gr = getgrgid(egid)) != NULL)
(void)printf("(%s)", gr->gr_name);
}
if ((ngroups = getgroups(maxgroups, groups)) != 0) {
for (fmt = " groups=%ju", lastid = -1, cnt = 0; cnt < ngroups;
fmt = ",%ju", lastid = gid, cnt++) {
gid = groups[cnt];
if (lastid == gid)
continue;
(void)printf(fmt, (uintmax_t)gid);
if ((gr = getgrgid(gid)) != NULL)
(void)printf("(%s)", gr->gr_name);
}
}
(void)printf("\n");
}
static void
user(struct passwd *pw)
{
struct group *gr;
const char *fmt;
int cnt, id, lastid, ngroups;
gid_t *glist = groups;
id = pw->pw_uid;
(void)printf("uid=%u(%s)", id, pw->pw_name);
(void)printf(" gid=%lu", (u_long)pw->pw_gid);
if ((gr = getgrgid(pw->pw_gid)) != NULL)
(void)printf("(%s)", gr->gr_name);
ngroups = maxgroups + 1;
if (getgrouplist(pw->pw_name, pw->pw_gid, glist, &ngroups) == -1) {
glist = malloc(ngroups * sizeof(gid_t));
(void) getgrouplist(pw->pw_name, pw->pw_gid, glist, &ngroups);
}
for (fmt = " groups=%u", lastid = -1, cnt = 0; cnt < ngroups;
fmt=",%u", lastid = id, cnt++) {
id = glist[cnt];
if (lastid == id)
continue;
(void)printf(fmt, id);
if ((gr = getgrgid(id)) != NULL)
(void)printf("(%s)", gr->gr_name);
}
(void)printf("\n");
if (glist != groups)
free(glist);
}
static void
group(struct passwd *pw, int nflag)
{
struct group *gr;
int cnt, ngroups;
gid_t id, lastid;
const char *fmt;
gid_t *glist = groups;
if (pw) {
ngroups = maxgroups;
if (getgrouplist(pw->pw_name, pw->pw_gid, glist, &ngroups)
== -1) {
glist = malloc(ngroups * sizeof(gid_t));
(void) getgrouplist(pw->pw_name, pw->pw_gid, glist,
&ngroups);
}
} else {
glist[0] = getgid();
ngroups = getgroups(maxgroups, glist + 1) + 1;
}
fmt = nflag ? "%s" : "%u";
for (lastid = -1, cnt = 0; cnt < ngroups; ++cnt) {
if (lastid == (id = glist[cnt]) || (cnt && id == glist[0]))
continue;
if (nflag) {
if ((gr = getgrgid(id)) != NULL)
(void)printf(fmt, gr->gr_name);
else
(void)printf(*fmt == ' ' ? " %u" : "%u",
id);
fmt = " %s";
} else {
(void)printf(fmt, id);
fmt = " %u";
}
lastid = id;
}
(void)printf("\n");
if (glist != groups)
free(glist);
}
static struct passwd *
who(char *u)
{
struct passwd *pw;
long id;
char *ep;
/*
* Translate user argument into a pw pointer. First, try to
* get it as specified. If that fails, try it as a number.
*/
if ((pw = getpwnam(u)) != NULL)
return pw;
id = strtol(u, &ep, 10);
if (*u && !*ep && (pw = getpwuid(id)))
return pw;
errx(1, "%s: No such user", u);
/* NOTREACHED */
return NULL;
}
static void
usage(void)
{
if (strcmp(getprogname(), "groups") == 0) {
(void)fprintf(stderr, "usage: groups [user]\n");
} else if (strcmp(getprogname(), "whoami") == 0) {
(void)fprintf(stderr, "usage: whoami\n");
} else {
(void)fprintf(stderr, "usage: id [user]\n");
(void)fprintf(stderr, " id -G [-n] [user]\n");
(void)fprintf(stderr, " id -g [-nr] [user]\n");
(void)fprintf(stderr, " id -p [user]\n");
(void)fprintf(stderr, " id -u [-nr] [user]\n");
}
exit(1);
}

60
usr.bin/id/whoami.1 Normal file
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@@ -0,0 +1,60 @@
.\" $NetBSD: whoami.1,v 1.9 2003/08/07 11:14:07 agc Exp $
.\"
.\" Copyright (c) 1991, 1993
.\" The Regents of the University of California. 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.
.\" 3. Neither the name of the University nor the names of its contributors
.\" may be used to endorse or promote products derived from this software
.\" without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
.\"
.\" from: @(#)whoami.1 8.1 (Berkeley) 6/6/93
.\" $NetBSD: whoami.1,v 1.9 2003/08/07 11:14:07 agc Exp $
.\"
.Dd June 6, 1993
.Dt WHOAMI 1
.Os
.Sh NAME
.Nm whoami
.Nd display effective user id
.Sh SYNOPSIS
.Nm
.Sh DESCRIPTION
The
.Nm
utility has been obsoleted by the
.Xr id 1
utility, and is equivalent to
.Dq Nm id Fl un .
The command
.Dq Nm id Fl p
is suggested for normal interactive use.
.Pp
The
.Nm
utility displays your effective user ID as a name.
.Pp
The
.Nm
utility exits 0 on success, and \*[Gt]0 if an error occurs.
.Sh SEE ALSO
.Xr id 1