diff options
Diffstat (limited to 'usr.bin/id')
| -rw-r--r-- | usr.bin/id/Makefile | 10 | ||||
| -rw-r--r-- | usr.bin/id/groups.1 | 62 | ||||
| -rw-r--r-- | usr.bin/id/id.1 | 153 | ||||
| -rw-r--r-- | usr.bin/id/id.c | 413 | ||||
| -rw-r--r-- | usr.bin/id/whoami.1 | 60 |
5 files changed, 698 insertions, 0 deletions
diff --git a/usr.bin/id/Makefile b/usr.bin/id/Makefile new file mode 100644 index 000000000000..715456839582 --- /dev/null +++ b/usr.bin/id/Makefile @@ -0,0 +1,10 @@ +# @(#)Makefile 8.1 (Berkeley) 6/6/93 +# $FreeBSD$ + +PROG= id +WARNS?= 6 +LINKS= ${BINDIR}/id ${BINDIR}/groups +LINKS+= ${BINDIR}/id ${BINDIR}/whoami +MAN= id.1 groups.1 whoami.1 + +.include <bsd.prog.mk> diff --git a/usr.bin/id/groups.1 b/usr.bin/id/groups.1 new file mode 100644 index 000000000000..59174426d6db --- /dev/null +++ b/usr.bin/id/groups.1 @@ -0,0 +1,62 @@ +.\" 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. +.\" +.\" @(#)groups.1 8.1 (Berkeley) 6/6/93 +.\" $FreeBSD$ +.\" +.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. +.Sh DIAGNOSTICS +.Ex -std +.Sh SEE ALSO +.Xr id 1 diff --git a/usr.bin/id/id.1 b/usr.bin/id/id.1 new file mode 100644 index 000000000000..cf53f44309f5 --- /dev/null +++ b/usr.bin/id/id.1 @@ -0,0 +1,153 @@ +.\" Copyright (c) 1991, 1993 +.\" 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. 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. +.\" +.\" @(#)id.1 8.1 (Berkeley) 6/6/93 +.\" $FreeBSD$ +.\" +.Dd May 3, 2004 +.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 M +.Nm +.Fl P +.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 indent +.It Fl G +Display the different group IDs (effective, real and supplementary) +as white-space separated numbers, in no particular order. +.It Fl M +Display the MAC label of the current prorcess. +.It Fl P +Display the id as a password file entry. +.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 +.Dq login . +The user ID as a name is displayed, preceded by the keyword +.Dq 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 +.Dq 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 +.Dq rgid . +The list of groups to which the user belongs is then displayed as names, +preceded by the keyword +.Dq 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 +.Sh DIAGNOSTICS +.Ex -std +.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 appeared in +.Bx 4.4 . diff --git a/usr.bin/id/id.c b/usr.bin/id/id.c new file mode 100644 index 000000000000..f8fba74c86e1 --- /dev/null +++ b/usr.bin/id/id.c @@ -0,0 +1,413 @@ +/*- + * 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> + +#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 current(void); +void pline(struct passwd *); +void pretty(struct passwd *); +void group(struct passwd *, int); +void maclabel(void); +void usage(void); +void user(struct passwd *); +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; + const char *myname; + + Gflag = Mflag = Pflag = gflag = nflag = pflag = rflag = uflag = 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) ? "" : "PGMgnpru")) != -1) + switch(ch) { + case 'G': + Gflag = 1; + break; + case 'M': + Mflag = 1; + break; + case 'P': + Pflag = 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; + + if (iswhoami && argc > 0) + usage(); + + switch(Gflag + 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(); + + 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) + user(pw); + else + current(); + 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 +current(void) +{ + struct group *gr; + struct passwd *pw; + int cnt, id, eid, lastid, ngroups; + gid_t groups[NGROUPS]; + const char *fmt; + + id = getuid(); + (void)printf("uid=%u", id); + if ((pw = getpwuid(id))) + (void)printf("(%s)", pw->pw_name); + if ((eid = geteuid()) != id) { + (void)printf(" euid=%u", eid); + if ((pw = getpwuid(eid))) + (void)printf("(%s)", pw->pw_name); + } + id = getgid(); + (void)printf(" gid=%u", id); + if ((gr = getgrgid(id))) + (void)printf("(%s)", gr->gr_name); + if ((eid = getegid()) != id) { + (void)printf(" egid=%u", eid); + if ((gr = getgrgid(eid))) + (void)printf("(%s)", gr->gr_name); + } + 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))) + (void)printf("(%s)", gr->gr_name); + } + } + (void)printf("\n"); +} + +void +user(struct passwd *pw) +{ + struct group *gr; + const char *fmt; + int cnt, gid, lastgid, ngroups, groups[NGROUPS + 1]; + + (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, gid, groups, &ngroups); + fmt = " groups=%u"; + for (lastgid = -1, cnt = 0; cnt < ngroups; ++cnt) { + if (lastgid == (gid = groups[cnt])) + continue; + (void)printf(fmt, gid); + fmt = ", %u"; + if ((gr = getgrgid(gid))) + (void)printf("(%s)", gr->gr_name); + lastgid = gid; + } + (void)printf("\n"); +} + +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) +{ + 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%s\n", + "usage: id [user]", + " id -G [-n] [user]", + " id -M", + " id -P [user]", + " id -g [-nr] [user]", + " id -p [user]", + " id -u [-nr] [user]"); + exit(1); +} diff --git a/usr.bin/id/whoami.1 b/usr.bin/id/whoami.1 new file mode 100644 index 000000000000..4f7cb533291a --- /dev/null +++ b/usr.bin/id/whoami.1 @@ -0,0 +1,60 @@ +.\" 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. +.\" +.\" @(#)whoami.1 8.1 (Berkeley) 6/6/93 +.\" $FreeBSD$ +.\" +.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. +.Sh DIAGNOSTICS +.Ex -std +.Sh SEE ALSO +.Xr id 1 |