mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-25 11:37:56 +00:00
446 lines
9.4 KiB
C
446 lines
9.4 KiB
C
/*-
|
|
* 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. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. 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.
|
|
*/
|
|
|
|
#ifndef lint
|
|
static const char copyright[] =
|
|
"@(#) Copyright (c) 1991, 1993\n\
|
|
The Regents of the University of California. All rights reserved.\n";
|
|
#endif /* not lint */
|
|
|
|
#ifndef lint
|
|
#if 0
|
|
static char sccsid[] = "@(#)id.c 8.2 (Berkeley) 2/16/94";
|
|
#endif
|
|
#endif /* not lint */
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/mac.h>
|
|
|
|
#ifdef USE_BSM_AUDIT
|
|
#include <bsm/audit.h>
|
|
#endif
|
|
|
|
#include <err.h>
|
|
#include <errno.h>
|
|
#include <grp.h>
|
|
#include <pwd.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
void id_print(struct passwd *, int, int, int);
|
|
void pline(struct passwd *);
|
|
void pretty(struct passwd *);
|
|
void auditid(void);
|
|
void group(struct passwd *, int);
|
|
void maclabel(void);
|
|
void usage(void);
|
|
struct passwd *who(char *);
|
|
|
|
int isgroups, iswhoami;
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
struct group *gr;
|
|
struct passwd *pw;
|
|
int Gflag, Mflag, Pflag, ch, gflag, id, nflag, pflag, rflag, uflag;
|
|
int Aflag;
|
|
const char *myname;
|
|
|
|
Gflag = Mflag = Pflag = gflag = nflag = pflag = rflag = uflag = 0;
|
|
Aflag = 0;
|
|
|
|
myname = strrchr(argv[0], '/');
|
|
myname = (myname != NULL) ? myname + 1 : argv[0];
|
|
if (strcmp(myname, "groups") == 0) {
|
|
isgroups = 1;
|
|
Gflag = nflag = 1;
|
|
}
|
|
else if (strcmp(myname, "whoami") == 0) {
|
|
iswhoami = 1;
|
|
uflag = nflag = 1;
|
|
}
|
|
|
|
while ((ch = getopt(argc, argv,
|
|
(isgroups || iswhoami) ? "" : "APGMagnpru")) != -1)
|
|
switch(ch) {
|
|
#ifdef USE_BSM_AUDIT
|
|
case 'A':
|
|
Aflag = 1;
|
|
break;
|
|
#endif
|
|
case 'G':
|
|
Gflag = 1;
|
|
break;
|
|
case 'M':
|
|
Mflag = 1;
|
|
break;
|
|
case 'P':
|
|
Pflag = 1;
|
|
break;
|
|
case 'a':
|
|
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;
|
|
|
|
if (iswhoami && argc > 0)
|
|
usage();
|
|
|
|
switch(Aflag + Gflag + Mflag + Pflag + gflag + pflag + uflag) {
|
|
case 1:
|
|
break;
|
|
case 0:
|
|
if (!nflag && !rflag)
|
|
break;
|
|
/* FALLTHROUGH */
|
|
default:
|
|
usage();
|
|
}
|
|
|
|
pw = *argv ? who(*argv) : NULL;
|
|
|
|
if (Mflag && pw != NULL)
|
|
usage();
|
|
|
|
#ifdef USE_BSM_AUDIT
|
|
if (Aflag) {
|
|
auditid();
|
|
exit(0);
|
|
}
|
|
#endif
|
|
|
|
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);
|
|
exit(0);
|
|
}
|
|
|
|
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);
|
|
exit(0);
|
|
}
|
|
|
|
if (Gflag) {
|
|
group(pw, nflag);
|
|
exit(0);
|
|
}
|
|
|
|
if (Mflag) {
|
|
maclabel();
|
|
exit(0);
|
|
}
|
|
|
|
if (Pflag) {
|
|
pline(pw);
|
|
exit(0);
|
|
}
|
|
|
|
if (pflag) {
|
|
pretty(pw);
|
|
exit(0);
|
|
}
|
|
|
|
if (pw) {
|
|
id_print(pw, 1, 0, 0);
|
|
}
|
|
else {
|
|
id = getuid();
|
|
pw = getpwuid(id);
|
|
id_print(pw, 0, 1, 1);
|
|
}
|
|
exit(0);
|
|
}
|
|
|
|
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)))
|
|
(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)))
|
|
(void)printf("rgid\t%s\n", gr->gr_name);
|
|
else
|
|
(void)printf("rgid\t%u\n", rid);
|
|
}
|
|
(void)printf("groups\t");
|
|
group(NULL, 1);
|
|
}
|
|
}
|
|
|
|
void
|
|
id_print(struct passwd *pw, int use_ggl, int p_euid, int p_egid)
|
|
{
|
|
struct group *gr;
|
|
gid_t gid, egid, lastgid;
|
|
uid_t uid, euid;
|
|
int cnt, ngroups;
|
|
gid_t groups[NGROUPS + 1];
|
|
const char *fmt;
|
|
|
|
if (pw != NULL) {
|
|
uid = pw->pw_uid;
|
|
gid = pw->pw_gid;
|
|
}
|
|
else {
|
|
uid = getuid();
|
|
gid = getgid();
|
|
}
|
|
|
|
if (use_ggl && pw != NULL) {
|
|
ngroups = NGROUPS + 1;
|
|
getgrouplist(pw->pw_name, gid, groups, &ngroups);
|
|
}
|
|
else {
|
|
ngroups = getgroups(NGROUPS + 1, groups);
|
|
}
|
|
|
|
if (pw != NULL)
|
|
printf("uid=%u(%s)", uid, pw->pw_name);
|
|
else
|
|
printf("uid=%u", getuid());
|
|
printf(" gid=%u", gid);
|
|
if ((gr = getgrgid(gid)))
|
|
(void)printf("(%s)", gr->gr_name);
|
|
if (p_euid && (euid = geteuid()) != uid) {
|
|
(void)printf(" euid=%u", euid);
|
|
if ((pw = getpwuid(euid)))
|
|
(void)printf("(%s)", pw->pw_name);
|
|
}
|
|
if (p_egid && (egid = getegid()) != gid) {
|
|
(void)printf(" egid=%u", egid);
|
|
if ((gr = getgrgid(egid)))
|
|
(void)printf("(%s)", gr->gr_name);
|
|
}
|
|
fmt = " groups=%u";
|
|
for (lastgid = -1, cnt = 0; cnt < ngroups; ++cnt) {
|
|
if (lastgid == (gid = groups[cnt]))
|
|
continue;
|
|
printf(fmt, gid);
|
|
fmt = ", %u";
|
|
if ((gr = getgrgid(gid)))
|
|
printf("(%s)", gr->gr_name);
|
|
lastgid = gid;
|
|
}
|
|
printf("\n");
|
|
}
|
|
|
|
#ifdef USE_BSM_AUDIT
|
|
void
|
|
auditid(void)
|
|
{
|
|
auditinfo_t auditinfo;
|
|
|
|
if (getaudit(&auditinfo) < 0)
|
|
err(1, "getaudit");
|
|
printf("auid=%d\n", auditinfo.ai_auid);
|
|
printf("mask.success=0x%08x\n", auditinfo.ai_mask.am_success);
|
|
printf("mask.failure=0x%08x\n", auditinfo.ai_mask.am_failure);
|
|
printf("termid.port=0x%08x\n", auditinfo.ai_termid.port);
|
|
printf("asid=%d\n", auditinfo.ai_asid);
|
|
}
|
|
#endif
|
|
|
|
void
|
|
group(struct passwd *pw, int nflag)
|
|
{
|
|
struct group *gr;
|
|
int cnt, id, lastid, ngroups;
|
|
gid_t groups[NGROUPS + 1];
|
|
const char *fmt;
|
|
|
|
if (pw) {
|
|
ngroups = NGROUPS + 1;
|
|
(void) getgrouplist(pw->pw_name, pw->pw_gid, groups, &ngroups);
|
|
} else {
|
|
groups[0] = getgid();
|
|
ngroups = getgroups(NGROUPS, groups + 1) + 1;
|
|
}
|
|
fmt = nflag ? "%s" : "%u";
|
|
for (lastid = -1, cnt = 0; cnt < ngroups; ++cnt) {
|
|
if (lastid == (id = groups[cnt]))
|
|
continue;
|
|
if (nflag) {
|
|
if ((gr = getgrgid(id)))
|
|
(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");
|
|
}
|
|
|
|
void
|
|
maclabel(void)
|
|
{
|
|
char *string;
|
|
mac_t label;
|
|
int error;
|
|
|
|
error = mac_prepare_process_label(&label);
|
|
if (error == -1)
|
|
errx(1, "mac_prepare_type: %s", strerror(errno));
|
|
|
|
error = mac_get_proc(label);
|
|
if (error == -1)
|
|
errx(1, "mac_get_proc: %s", strerror(errno));
|
|
|
|
error = mac_to_text(label, &string);
|
|
if (error == -1)
|
|
errx(1, "mac_to_text: %s", strerror(errno));
|
|
|
|
(void)printf("%s\n", string);
|
|
mac_free(label);
|
|
free(string);
|
|
}
|
|
|
|
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)))
|
|
return(pw);
|
|
id = strtol(u, &ep, 10);
|
|
if (*u && !*ep && (pw = getpwuid(id)))
|
|
return(pw);
|
|
errx(1, "%s: no such user", u);
|
|
/* NOTREACHED */
|
|
}
|
|
|
|
void
|
|
pline(struct passwd *pw)
|
|
{
|
|
|
|
if (!pw) {
|
|
if ((pw = getpwuid(getuid())) == NULL)
|
|
err(1, "getpwuid");
|
|
}
|
|
|
|
(void)printf("%s:%s:%d:%d:%s:%ld:%ld:%s:%s:%s\n", pw->pw_name,
|
|
pw->pw_passwd, pw->pw_uid, pw->pw_gid, pw->pw_class,
|
|
(long)pw->pw_change, (long)pw->pw_expire, pw->pw_gecos,
|
|
pw->pw_dir, pw->pw_shell);
|
|
}
|
|
|
|
|
|
void
|
|
usage(void)
|
|
{
|
|
|
|
if (isgroups)
|
|
(void)fprintf(stderr, "usage: groups [user]\n");
|
|
else if (iswhoami)
|
|
(void)fprintf(stderr, "usage: whoami\n");
|
|
else
|
|
(void)fprintf(stderr, "%s\n%s%s\n%s\n%s\n%s\n%s\n%s\n",
|
|
"usage: id [user]",
|
|
#ifdef USE_BSM_AUDIT
|
|
" id -A\n",
|
|
#else
|
|
"",
|
|
#endif
|
|
" id -G [-n] [user]",
|
|
" id -M",
|
|
" id -P [user]",
|
|
" id -g [-nr] [user]",
|
|
" id -p [user]",
|
|
" id -u [-nr] [user]");
|
|
exit(1);
|
|
}
|