1*7c478bd9Sstevel@tonic-gate /* 2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START 3*7c478bd9Sstevel@tonic-gate * 4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*7c478bd9Sstevel@tonic-gate * with the License. 8*7c478bd9Sstevel@tonic-gate * 9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 12*7c478bd9Sstevel@tonic-gate * and limitations under the License. 13*7c478bd9Sstevel@tonic-gate * 14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*7c478bd9Sstevel@tonic-gate * 20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END 21*7c478bd9Sstevel@tonic-gate */ 22*7c478bd9Sstevel@tonic-gate /* 23*7c478bd9Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24*7c478bd9Sstevel@tonic-gate * Use is subject to license terms. 25*7c478bd9Sstevel@tonic-gate */ 26*7c478bd9Sstevel@tonic-gate 27*7c478bd9Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 28*7c478bd9Sstevel@tonic-gate /* All Rights Reserved */ 29*7c478bd9Sstevel@tonic-gate 30*7c478bd9Sstevel@tonic-gate 31*7c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 32*7c478bd9Sstevel@tonic-gate 33*7c478bd9Sstevel@tonic-gate #include <sys/types.h> 34*7c478bd9Sstevel@tonic-gate #include <sys/stat.h> 35*7c478bd9Sstevel@tonic-gate #include <stdio.h> 36*7c478bd9Sstevel@tonic-gate #include <ctype.h> 37*7c478bd9Sstevel@tonic-gate #include <grp.h> 38*7c478bd9Sstevel@tonic-gate #include <unistd.h> 39*7c478bd9Sstevel@tonic-gate #include <string.h> 40*7c478bd9Sstevel@tonic-gate #include <userdefs.h> 41*7c478bd9Sstevel@tonic-gate #include <stdlib.h> 42*7c478bd9Sstevel@tonic-gate #include "users.h" 43*7c478bd9Sstevel@tonic-gate #include "messages.h" 44*7c478bd9Sstevel@tonic-gate 45*7c478bd9Sstevel@tonic-gate /* lint error-killers: */ 46*7c478bd9Sstevel@tonic-gate int errmsg(int, int); 47*7c478bd9Sstevel@tonic-gate 48*7c478bd9Sstevel@tonic-gate /* Delete a group from the GROUP file */ 49*7c478bd9Sstevel@tonic-gate int 50*7c478bd9Sstevel@tonic-gate del_group(char *group) 51*7c478bd9Sstevel@tonic-gate { 52*7c478bd9Sstevel@tonic-gate int deleted; 53*7c478bd9Sstevel@tonic-gate FILE *e_fptr, *t_fptr; 54*7c478bd9Sstevel@tonic-gate struct group *grpstruct; 55*7c478bd9Sstevel@tonic-gate char tname[] = "/etc/gtmp.XXXXXX"; 56*7c478bd9Sstevel@tonic-gate int fd; 57*7c478bd9Sstevel@tonic-gate struct stat sbuf; 58*7c478bd9Sstevel@tonic-gate boolean_t haserr; 59*7c478bd9Sstevel@tonic-gate int line = 1; 60*7c478bd9Sstevel@tonic-gate 61*7c478bd9Sstevel@tonic-gate if ((e_fptr = fopen(GROUP, "r")) == NULL) 62*7c478bd9Sstevel@tonic-gate return (EX_UPDATE); 63*7c478bd9Sstevel@tonic-gate 64*7c478bd9Sstevel@tonic-gate if (fstat(fileno(e_fptr), &sbuf) != 0) 65*7c478bd9Sstevel@tonic-gate return (EX_UPDATE); 66*7c478bd9Sstevel@tonic-gate 67*7c478bd9Sstevel@tonic-gate if ((fd = mkstemp(tname)) == -1) 68*7c478bd9Sstevel@tonic-gate return (EX_UPDATE); 69*7c478bd9Sstevel@tonic-gate 70*7c478bd9Sstevel@tonic-gate if ((t_fptr = fdopen(fd, "w")) == NULL) { 71*7c478bd9Sstevel@tonic-gate (void) close(fd); 72*7c478bd9Sstevel@tonic-gate (void) unlink(tname); 73*7c478bd9Sstevel@tonic-gate return (EX_UPDATE); 74*7c478bd9Sstevel@tonic-gate } 75*7c478bd9Sstevel@tonic-gate 76*7c478bd9Sstevel@tonic-gate /* 77*7c478bd9Sstevel@tonic-gate * Get ownership and permissions correct 78*7c478bd9Sstevel@tonic-gate */ 79*7c478bd9Sstevel@tonic-gate 80*7c478bd9Sstevel@tonic-gate if (fchmod(fd, sbuf.st_mode) != 0 || 81*7c478bd9Sstevel@tonic-gate fchown(fd, sbuf.st_uid, sbuf.st_gid) != 0) { 82*7c478bd9Sstevel@tonic-gate (void) fclose(t_fptr); 83*7c478bd9Sstevel@tonic-gate (void) unlink(tname); 84*7c478bd9Sstevel@tonic-gate return (EX_UPDATE); 85*7c478bd9Sstevel@tonic-gate } 86*7c478bd9Sstevel@tonic-gate 87*7c478bd9Sstevel@tonic-gate /* loop thru GROUP looking for the one to delete */ 88*7c478bd9Sstevel@tonic-gate deleted = 0; 89*7c478bd9Sstevel@tonic-gate 90*7c478bd9Sstevel@tonic-gate while ((grpstruct = fgetgrent(e_fptr)) != NULL) { 91*7c478bd9Sstevel@tonic-gate 92*7c478bd9Sstevel@tonic-gate /* check to see if group is one to delete */ 93*7c478bd9Sstevel@tonic-gate if (strcmp(grpstruct->gr_name, group) == 0) 94*7c478bd9Sstevel@tonic-gate deleted = 1; 95*7c478bd9Sstevel@tonic-gate else 96*7c478bd9Sstevel@tonic-gate putgrent(grpstruct, t_fptr); 97*7c478bd9Sstevel@tonic-gate line++; 98*7c478bd9Sstevel@tonic-gate } 99*7c478bd9Sstevel@tonic-gate 100*7c478bd9Sstevel@tonic-gate haserr = !feof(e_fptr); 101*7c478bd9Sstevel@tonic-gate 102*7c478bd9Sstevel@tonic-gate if (haserr) 103*7c478bd9Sstevel@tonic-gate errmsg(M_SYNTAX, line); 104*7c478bd9Sstevel@tonic-gate 105*7c478bd9Sstevel@tonic-gate (void) fclose(e_fptr); 106*7c478bd9Sstevel@tonic-gate 107*7c478bd9Sstevel@tonic-gate if (fclose(t_fptr) != 0 || haserr) { 108*7c478bd9Sstevel@tonic-gate /* GROUP file contains bad entries or write failed. */ 109*7c478bd9Sstevel@tonic-gate (void) unlink(tname); 110*7c478bd9Sstevel@tonic-gate return (EX_UPDATE); 111*7c478bd9Sstevel@tonic-gate } 112*7c478bd9Sstevel@tonic-gate 113*7c478bd9Sstevel@tonic-gate /* If deleted, update GROUP file */ 114*7c478bd9Sstevel@tonic-gate if (deleted) { 115*7c478bd9Sstevel@tonic-gate if (rename(tname, GROUP) != 0) { 116*7c478bd9Sstevel@tonic-gate (void) unlink(tname); 117*7c478bd9Sstevel@tonic-gate return (EX_UPDATE); 118*7c478bd9Sstevel@tonic-gate } 119*7c478bd9Sstevel@tonic-gate return (EX_SUCCESS); 120*7c478bd9Sstevel@tonic-gate } else { 121*7c478bd9Sstevel@tonic-gate (void) unlink(tname); 122*7c478bd9Sstevel@tonic-gate return (EX_NAME_NOT_EXIST); 123*7c478bd9Sstevel@tonic-gate } 124*7c478bd9Sstevel@tonic-gate } 125