2 * Copyright (c) 1991, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 static const char copyright[] =
36 "@(#) Copyright (c) 1991, 1993\n\
37 The Regents of the University of California. All rights reserved.\n";
42 static char sccsid[] = "@(#)id.c 8.2 (Berkeley) 2/16/94";
45 #include <sys/cdefs.h>
46 __FBSDID("$FreeBSD$");
48 #include <sys/param.h>
59 void pline(struct passwd *);
60 void pretty(struct passwd *);
61 void group(struct passwd *, int);
63 void user(struct passwd *);
67 int isgroups, iswhoami;
70 main(int argc, char *argv[])
74 int Gflag, Pflag, ch, gflag, id, nflag, pflag, rflag, uflag;
77 Gflag = Pflag = gflag = nflag = pflag = rflag = uflag = 0;
79 myname = strrchr(argv[0], '/');
80 myname = (myname != NULL) ? myname + 1 : argv[0];
81 if (strcmp(myname, "groups") == 0) {
85 else if (strcmp(myname, "whoami") == 0) {
90 while ((ch = getopt(argc, argv,
91 (isgroups || iswhoami) ? "" : "PGgnpru")) != -1)
121 if (iswhoami && argc > 0)
124 switch(Gflag + Pflag + gflag + pflag + uflag) {
128 if (!nflag && !rflag)
135 pw = *argv ? who(*argv) : NULL;
138 id = pw ? pw->pw_gid : rflag ? getgid() : getegid();
139 if (nflag && (gr = getgrgid(id)))
140 (void)printf("%s\n", gr->gr_name);
142 (void)printf("%u\n", id);
147 id = pw ? pw->pw_uid : rflag ? getuid() : geteuid();
148 if (nflag && (pw = getpwuid(id)))
149 (void)printf("%s\n", pw->pw_name);
151 (void)printf("%u\n", id);
178 pretty(struct passwd *pw)
185 (void)printf("uid\t%s\n", pw->pw_name);
186 (void)printf("groups\t");
189 if ((login = getlogin()) == NULL)
192 pw = getpwuid(rid = getuid());
193 if (pw == NULL || strcmp(login, pw->pw_name))
194 (void)printf("login\t%s\n", login);
196 (void)printf("uid\t%s\n", pw->pw_name);
198 (void)printf("uid\t%u\n", rid);
200 if ((eid = geteuid()) != rid) {
201 if ((pw = getpwuid(eid)))
202 (void)printf("euid\t%s\n", pw->pw_name);
204 (void)printf("euid\t%u\n", eid);
206 if ((rid = getgid()) != (eid = getegid())) {
207 if ((gr = getgrgid(rid)))
208 (void)printf("rgid\t%s\n", gr->gr_name);
210 (void)printf("rgid\t%u\n", rid);
212 (void)printf("groups\t");
222 int cnt, id, eid, lastid, ngroups;
223 gid_t groups[NGROUPS];
227 (void)printf("uid=%u", id);
228 if ((pw = getpwuid(id)))
229 (void)printf("(%s)", pw->pw_name);
230 if ((eid = geteuid()) != id) {
231 (void)printf(" euid=%u", eid);
232 if ((pw = getpwuid(eid)))
233 (void)printf("(%s)", pw->pw_name);
236 (void)printf(" gid=%u", id);
237 if ((gr = getgrgid(id)))
238 (void)printf("(%s)", gr->gr_name);
239 if ((eid = getegid()) != id) {
240 (void)printf(" egid=%u", eid);
241 if ((gr = getgrgid(eid)))
242 (void)printf("(%s)", gr->gr_name);
244 if ((ngroups = getgroups(NGROUPS, groups))) {
245 for (fmt = " groups=%u", lastid = -1, cnt = 0; cnt < ngroups;
246 fmt = ", %u", lastid = id) {
250 (void)printf(fmt, id);
251 if ((gr = getgrgid(id)))
252 (void)printf("(%s)", gr->gr_name);
259 user(struct passwd *pw)
263 int cnt, gid, lastgid, ngroups, groups[NGROUPS + 1];
265 (void)printf("uid=%u(%s)", pw->pw_uid, pw->pw_name);
267 (void)printf(" gid=%u", gid);
268 if ((gr = getgrgid(gid)))
269 (void)printf("(%s)", gr->gr_name);
270 ngroups = NGROUPS + 1;
271 (void) getgrouplist(pw->pw_name, gid, groups, &ngroups);
273 for (lastgid = -1, cnt = 0; cnt < ngroups; ++cnt) {
274 if (lastgid == (gid = groups[cnt]))
276 (void)printf(fmt, gid);
278 if ((gr = getgrgid(gid)))
279 (void)printf("(%s)", gr->gr_name);
286 group(struct passwd *pw, int nflag)
289 int cnt, id, lastid, ngroups;
290 gid_t groups[NGROUPS + 1];
294 ngroups = NGROUPS + 1;
295 (void) getgrouplist(pw->pw_name, pw->pw_gid, groups, &ngroups);
297 groups[0] = getgid();
298 ngroups = getgroups(NGROUPS, groups + 1) + 1;
300 fmt = nflag ? "%s" : "%u";
301 for (lastid = -1, cnt = 0; cnt < ngroups; ++cnt) {
302 if (lastid == (id = groups[cnt]))
305 if ((gr = getgrgid(id)))
306 (void)printf(fmt, gr->gr_name);
308 (void)printf(*fmt == ' ' ? " %u" : "%u",
312 (void)printf(fmt, id);
328 * Translate user argument into a pw pointer. First, try to
329 * get it as specified. If that fails, try it as a number.
331 if ((pw = getpwnam(u)))
333 id = strtol(u, &ep, 10);
334 if (*u && !*ep && (pw = getpwuid(id)))
336 errx(1, "%s: no such user", u);
341 pline(struct passwd *pw)
346 if ((pw = getpwuid(rid = getuid())) == NULL)
350 (void)printf("%s:%s:%d:%d:%s:%ld:%ld:%s:%s:%s\n", pw->pw_name,
351 pw->pw_passwd, pw->pw_uid, pw->pw_gid, pw->pw_class,
352 (long)pw->pw_change, (long)pw->pw_expire, pw->pw_gecos,
353 pw->pw_dir, pw->pw_shell);
362 (void)fprintf(stderr, "usage: groups [user]\n");
364 (void)fprintf(stderr, "usage: whoami\n");
366 (void)fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n%s\n",
368 " id -G [-n] [user]",
370 " id -g [-nr] [user]",
372 " id -u [-nr] [user]");