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 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 23 /* All Rights Reserved */ 24 25 /* 26 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 27 * Use is subject to license terms. 28 */ 29 #pragma ident "%Z%%M% %I% %E% SMI" 30 31 /* 32 * accton - calls syscall with super-user privileges 33 */ 34 35 #include <stdio.h> 36 #include <sys/types.h> 37 #include <sys/param.h> 38 #include "acctdef.h" 39 #include <errno.h> 40 #include <sys/stat.h> 41 #include <pwd.h> 42 #include <fcntl.h> 43 #include <stdlib.h> 44 45 uid_t admuid; 46 struct passwd *pwd; 47 48 void ckfile(char *); 49 50 int 51 main(int argc, char **argv) 52 { 53 uid_t uid; 54 55 uid = getuid(); 56 if ((pwd = getpwnam("adm")) == NULL) { 57 perror("cannot determine adm's uid"), exit(1); 58 } 59 admuid = pwd->pw_uid; 60 if (uid == ROOT || uid == admuid) { 61 if (setuid(ROOT) == ERR) { 62 perror("cannot setuid (check command mode and owner)"); 63 exit(1); 64 } 65 if (argv[1]) 66 ckfile(argv[1]); 67 if (acct(argc > 1 ? argv[1] : 0) < 0) { 68 perror(argv[1]), exit(1); 69 } 70 exit(0); 71 72 } 73 fprintf(stderr, "%s: permission denied\n", argv[0]); 74 exit(1); 75 } 76 77 void 78 ckfile(char *admfile) 79 { 80 struct stat stbuf; 81 struct stat *s = &stbuf; 82 int fd; 83 84 if ((fd = open(admfile, O_RDONLY|O_CREAT, 0644)) == ERR) { 85 perror("creat"), exit(1); 86 } 87 88 if (fstat(fd, s) == ERR) { 89 perror("fstat"); 90 exit(1); 91 } 92 93 if (s->st_uid != admuid || s->st_gid != (gid_t)admuid) 94 if (fchown(fd, admuid, (gid_t)admuid) == ERR) { 95 perror("cannot change owner"), exit(1); 96 } 97 98 /* was if(s->st_mode & 0777 != 0664) */ 99 if ((s->st_mode & S_IAMB) != S_IRUSR|S_IWUSR|S_IRGRP|S_IWUSR|S_IROTH) 100 if (fchmod(fd, S_IRUSR|S_IWUSR|S_IRGRP|S_IWUSR|S_IROTH) == ERR) { 101 perror("cannot chmod"), exit(1); 102 } 103 104 (void) close(fd); 105 } 106