* SUCH DAMAGE.
*/
-#include <sys/cdefs.h>
#ifndef lint
-__COPYRIGHT("@(#) Copyright (c) 1991, 1993\n\
- The Regents of the University of California. All rights reserved.\n");
+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 8.3 (Berkeley) 4/28/95";
-#else
-__RCSID("$NetBSD: id.c,v 1.10 1998/08/25 20:59:37 ross Exp $");
+static char sccsid[] = "@(#)id.c 8.2 (Berkeley) 2/16/94";
#endif
#endif /* not lint */
+#include <sys/cdefs.h>
+__RCSID("$FreeBSD: src/usr.bin/id/id.c,v 1.19 2002/09/04 23:29:02 dwmalone Exp $");
#include <sys/param.h>
#include <err.h>
-#include <errno.h>
#include <grp.h>
#include <pwd.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
-void current __P((void));
-void pretty __P((struct passwd *));
-int main __P((int, char **));
-void group __P((struct passwd *, int));
-void usage __P((void));
-void user __P((struct passwd *));
+void current(void);
+void pline(struct passwd *);
+void pretty(struct passwd *);
+void group(struct passwd *, int);
+void usage(void);
+void user(struct passwd *);
struct passwd *
- who __P((char *));
+ who(char *);
-#ifdef __APPLE__
-extern char *__progname;
-#endif
+int isgroups, iswhoami;
int
-main(argc, argv)
- int argc;
- char *argv[];
+main(int argc, char *argv[])
{
struct group *gr;
struct passwd *pw;
- int ch, id;
- int Gflag, gflag, nflag, pflag, rflag, uflag;
+ int Gflag, Pflag, ch, gflag, id, nflag, pflag, rflag, uflag;
+ const char *myname;
- Gflag = gflag = nflag = pflag = rflag = uflag = 0;
+ Gflag = Pflag = gflag = nflag = pflag = rflag = uflag = 0;
- if (!strcmp(__progname, "groups")) {
- Gflag = 1;
- nflag = 1;
- }
- else if (!strcmp(__progname, "whoami")) {
- uflag = 1;
- nflag = 1;
- }
+ 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, "Ggnpru")) != -1)
+ while ((ch = getopt(argc, argv,
+ (isgroups || iswhoami) ? "" : "PGgnpru")) != -1)
switch(ch) {
case 'G':
Gflag = 1;
break;
+ case 'P':
+ Pflag = 1;
+ break;
case 'g':
gflag = 1;
break;
argc -= optind;
argv += optind;
- switch(Gflag + gflag + pflag + uflag) {
+ if (iswhoami && argc > 0)
+ usage();
+
+ switch(Gflag + Pflag + gflag + pflag + uflag) {
case 1:
break;
case 0:
exit(0);
}
+ if (Pflag) {
+ pline(pw);
+ exit(0);
+ }
+
if (pflag) {
pretty(pw);
exit(0);
}
void
-pretty(pw)
- struct passwd *pw;
+pretty(struct passwd *pw)
{
struct group *gr;
u_int eid, rid;
(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", pw->pw_name);
+ if ((pw = getpwuid(eid)))
+ (void)printf("euid\t%s\n", pw->pw_name);
else
- (void)printf("euid\t%u", eid);
+ (void)printf("euid\t%u\n", eid);
}
if ((rid = getgid()) != (eid = getegid())) {
- if ((gr = getgrgid(rid)) != NULL)
+ if ((gr = getgrgid(rid)))
(void)printf("rgid\t%s\n", gr->gr_name);
else
(void)printf("rgid\t%u\n", rid);
}
void
-current()
+current(void)
{
struct group *gr;
struct passwd *pw;
- int cnt, id, eid, lastid, ngroups;
+ int cnt, id, eid, gid, egid, lastid, ngroups;
gid_t groups[NGROUPS];
- char *fmt;
+ const char *fmt;
id = getuid();
(void)printf("uid=%u", id);
- if ((pw = getpwuid(id)) != NULL)
+ if ((pw = getpwuid(id)))
(void)printf("(%s)", pw->pw_name);
+ gid = getgid();
+ (void)printf(" gid=%u", gid);
+ if ((gr = getgrgid(gid)))
+ (void)printf("(%s)", gr->gr_name);
if ((eid = geteuid()) != id) {
(void)printf(" euid=%u", eid);
- if ((pw = getpwuid(eid)) != NULL)
+ if ((pw = getpwuid(eid)))
(void)printf("(%s)", pw->pw_name);
}
- id = getgid();
- (void)printf(" gid=%u", id);
- if ((gr = getgrgid(id)) != NULL)
- (void)printf("(%s)", gr->gr_name);
- if ((eid = getegid()) != id) {
- (void)printf(" egid=%u", eid);
- if ((gr = getgrgid(eid)) != NULL)
+ if ((egid = getegid()) != gid) {
+ (void)printf(" egid=%u", egid);
+ if ((gr = getgrgid(egid)))
(void)printf("(%s)", gr->gr_name);
}
- if ((ngroups = getgroups(NGROUPS, groups)) != NULL) {
+ if ((ngroups = getgroups(NGROUPS, groups))) {
for (fmt = " groups=%u", lastid = -1, cnt = 0; cnt < ngroups;
fmt = ", %u", lastid = id) {
id = groups[cnt++];
if (lastid == id)
continue;
(void)printf(fmt, id);
- if ((gr = getgrgid(id)) != NULL)
+ if ((gr = getgrgid(id)))
(void)printf("(%s)", gr->gr_name);
}
}
}
void
-user(pw)
- struct passwd *pw;
+user(struct passwd *pw)
{
struct group *gr;
- char *fmt;
- int cnt, id, lastid, ngroups, groups[NGROUPS + 1];
+ const char *fmt;
+ int cnt, gid, lastgid, ngroups, groups[NGROUPS + 1];
- id = pw->pw_uid;
- (void)printf("uid=%u(%s)", id, pw->pw_name);
- (void)printf(" gid=%u", pw->pw_gid);
- if ((gr = getgrgid(pw->pw_gid)) != NULL)
+ (void)printf("uid=%u(%s)", pw->pw_uid, pw->pw_name);
+ gid = pw->pw_gid;
+ (void)printf(" gid=%u", gid);
+ if ((gr = getgrgid(gid)))
(void)printf("(%s)", gr->gr_name);
ngroups = NGROUPS + 1;
- (void) getgrouplist(pw->pw_name, pw->pw_gid, groups, &ngroups);
+ (void) getgrouplist(pw->pw_name, gid, groups, &ngroups);
fmt = " groups=%u";
- for (lastid = -1, cnt = 0; cnt < ngroups; ++cnt) {
- if (lastid == (id = groups[cnt]))
+ for (lastgid = -1, cnt = 0; cnt < ngroups; ++cnt) {
+ if (lastgid == (gid = groups[cnt]))
continue;
- (void)printf(fmt, id);
- fmt = " %u";
- if ((gr = getgrgid(id)) != NULL)
+ (void)printf(fmt, gid);
+ fmt = ", %u";
+ if ((gr = getgrgid(gid)))
(void)printf("(%s)", gr->gr_name);
- lastid = id;
+ lastgid = gid;
}
(void)printf("\n");
}
void
-group(pw, nflag)
- struct passwd *pw;
- int nflag;
+group(struct passwd *pw, int nflag)
{
struct group *gr;
int cnt, id, lastid, ngroups;
gid_t groups[NGROUPS + 1];
- char *fmt;
+ const char *fmt;
if (pw) {
ngroups = NGROUPS + 1;
if (lastid == (id = groups[cnt]))
continue;
if (nflag) {
- if ((gr = getgrgid(id)) != NULL)
+ if ((gr = getgrgid(id)))
(void)printf(fmt, gr->gr_name);
else
(void)printf(*fmt == ' ' ? " %u" : "%u",
}
struct passwd *
-who(u)
- char *u;
+who(char *u)
{
struct passwd *pw;
long id;
* 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)
+ 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);
+ errx(1, "%s: no such user", u);
/* NOTREACHED */
- return (NULL);
}
void
-usage()
+pline(struct passwd *pw)
{
- (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 -u [-nr] [user]\n");
+ u_int rid;
+
+ if (!pw) {
+ if ((pw = getpwuid(rid = 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\n%s\n%s\n%s\n%s\n",
+ "usage: id [user]",
+ " id -G [-n] [user]",
+ " id -P [user]",
+ " id -g [-nr] [user]",
+ " id -p [user]",
+ " id -u [-nr] [user]");
exit(1);
}
projects / apple / shell_cmds.git / blobdiff