Mercurial > illumos > onarm
annotate usr/src/cmd/groups/groups.c @ 4:1a15d5aaf794
synchronized with onnv_86 (6202) in onnv-gate
| author | Koji Uno <koji.uno@sun.com> |
|---|---|
| date | Mon, 31 Aug 2009 14:38:03 +0900 |
| parents | c9caec207d52 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 * CDDL HEADER START | |
| 3 * | |
| 4 * The contents of this file are subject to the terms of the | |
| 5 * Common Development and Distribution License, Version 1.0 only | |
| 6 * (the "License"). You may not use this file except in compliance | |
| 7 * with the License. | |
| 8 * | |
| 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | |
| 10 * or http://www.opensolaris.org/os/licensing. | |
| 11 * See the License for the specific language governing permissions | |
| 12 * and limitations under the License. | |
| 13 * | |
| 14 * When distributing Covered Code, include this CDDL HEADER in each | |
| 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. | |
| 16 * If applicable, add the following below this CDDL HEADER, with the | |
| 17 * fields enclosed by brackets "[]" replaced with your own identifying | |
| 18 * information: Portions Copyright [yyyy] [name of copyright owner] | |
| 19 * | |
| 20 * CDDL HEADER END | |
| 21 */ | |
| 22 /* | |
| 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. | |
| 24 * Use is subject to license terms. | |
| 25 */ | |
| 26 | |
| 27 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ | |
| 28 /* All Rights Reserved */ | |
| 29 | |
| 30 /* | |
| 31 * University Copyright- Copyright (c) 1982, 1986, 1988 | |
| 32 * The Regents of the University of California | |
| 33 * All Rights Reserved | |
| 34 * | |
| 35 * University Acknowledgment- Portions of this document are derived from | |
| 36 * software developed by the University of California, Berkeley, and its | |
| 37 * contributors. | |
| 38 */ | |
| 39 | |
|
4
1a15d5aaf794
synchronized with onnv_86 (6202) in onnv-gate
Koji Uno <koji.uno@sun.com>
parents:
0
diff
changeset
|
40 #pragma ident "%Z%%M% %I% %E% SMI" |
| 0 | 41 |
| 42 /* | |
| 43 * groups - show group memberships | |
| 44 */ | |
| 45 /* LINTLIBRARY PROTOLIB1 */ | |
| 46 | |
| 47 #include <grp.h> | |
| 48 #include <pwd.h> | |
| 49 #include <stdio.h> | |
| 50 #include <unistd.h> | |
| 51 #include <stdlib.h> | |
| 52 | |
| 53 extern struct group *getgrgid(); | |
| 54 extern struct passwd *getpwnam(); | |
| 55 extern int _getgroupsbymember(const char *, gid_t[], int, int); | |
| 56 | |
| 57 static void showgroups(); | |
| 58 | |
| 59 static int ngroups_max; | |
| 60 | |
| 61 int | |
| 62 main(int argc, char *argv[]) | |
| 63 { | |
| 64 int xval = 0; | |
| 65 struct passwd *pw; | |
| 66 | |
| 67 ngroups_max = sysconf(_SC_NGROUPS_MAX); | |
| 68 | |
| 69 if (ngroups_max < 0) { | |
| 70 (void) fprintf(stderr, | |
| 71 "groups: could not get configuration info\n"); | |
| 72 exit(1); | |
| 73 } | |
| 74 | |
| 75 if (ngroups_max == 0) | |
| 76 exit(0); | |
| 77 | |
| 78 if (argc == 1) { | |
| 79 | |
| 80 if ((pw = getpwuid(getuid())) == NULL) { | |
| 81 (void) fprintf(stderr, "groups: No passwd entry\n"); | |
| 82 xval = 1; | |
| 83 } else | |
| 84 showgroups(pw); | |
| 85 | |
| 86 } else while (*++argv) { | |
| 87 | |
| 88 if ((pw = getpwnam(*argv)) == NULL) { | |
| 89 (void) fprintf(stderr, | |
| 90 "groups: %s : No such user\n", *argv); | |
| 91 xval = 1; | |
| 92 } else { | |
| 93 if (argc > 2) | |
| 94 (void) printf("%s : ", *argv); | |
| 95 showgroups(pw); | |
| 96 } | |
| 97 } | |
| 98 | |
| 99 return (xval); | |
| 100 | |
| 101 } | |
| 102 | |
| 103 static void | |
| 104 showgroups(struct passwd *pw) | |
| 105 { | |
| 106 struct group *gr; | |
| 107 static gid_t *groups = NULL; | |
| 108 int ngroups; | |
| 109 int i; | |
| 110 | |
| 111 if (groups == NULL) { | |
| 112 if ((groups = (gid_t *)calloc((uint_t)ngroups_max, | |
| 113 sizeof (gid_t))) == 0) { | |
| 114 (void) fprintf(stderr, | |
| 115 "allocation of %d bytes failed\n", | |
| 116 ngroups_max * sizeof (gid_t)); | |
| 117 exit(1); | |
| 118 } | |
| 119 } | |
| 120 groups[0] = pw->pw_gid; | |
| 121 | |
| 122 ngroups = _getgroupsbymember(pw->pw_name, groups, ngroups_max, 1); | |
| 123 | |
| 124 if (gr = getgrgid(groups[0])) | |
| 125 (void) printf("%s", gr->gr_name); | |
| 126 else | |
| 127 (void) printf("%d", (int)pw->pw_gid); | |
| 128 | |
| 129 for (i = 1; i < ngroups; i++) { | |
| 130 if ((gr = getgrgid(groups[i]))) | |
| 131 (void) printf(" %s", gr->gr_name); | |
| 132 else | |
| 133 (void) printf(" %d", (int)groups[i]); | |
| 134 } | |
| 135 | |
| 136 (void) printf("\n"); | |
| 137 } |