17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 57c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 67c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 77c478bd9Sstevel@tonic-gate * with the License. 87c478bd9Sstevel@tonic-gate * 97c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 107c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 117c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 127c478bd9Sstevel@tonic-gate * and limitations under the License. 137c478bd9Sstevel@tonic-gate * 147c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 157c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 167c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 177c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 187c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 197c478bd9Sstevel@tonic-gate * 207c478bd9Sstevel@tonic-gate * CDDL HEADER END 217c478bd9Sstevel@tonic-gate */ 227c478bd9Sstevel@tonic-gate /* 23*0a1278f2SGary Mills * Copyright (c) 2013 Gary Mills 24*0a1278f2SGary Mills * 257c478bd9Sstevel@tonic-gate * Copyright (c) 1997, by Sun Microsystems, Inc. 267c478bd9Sstevel@tonic-gate * All rights reserved. 277c478bd9Sstevel@tonic-gate */ 287c478bd9Sstevel@tonic-gate 297c478bd9Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 307c478bd9Sstevel@tonic-gate /* All Rights Reserved */ 317c478bd9Sstevel@tonic-gate 327c478bd9Sstevel@tonic-gate /*LINTLIBRARY*/ 337c478bd9Sstevel@tonic-gate 347c478bd9Sstevel@tonic-gate #include <sys/types.h> 357c478bd9Sstevel@tonic-gate #include <stdio.h> 367c478bd9Sstevel@tonic-gate #include <ctype.h> 377c478bd9Sstevel@tonic-gate #include <userdefs.h> 387c478bd9Sstevel@tonic-gate #include <users.h> 39*0a1278f2SGary Mills #include <deflt.h> 407c478bd9Sstevel@tonic-gate #include <limits.h> 417c478bd9Sstevel@tonic-gate 42*0a1278f2SGary Mills /* Defaults file */ 43*0a1278f2SGary Mills #define DEFAULT_USERADD "/etc/default/useradd" 44*0a1278f2SGary Mills 457c478bd9Sstevel@tonic-gate /* 467c478bd9Sstevel@tonic-gate * validate string given as login name. 477c478bd9Sstevel@tonic-gate */ 487c478bd9Sstevel@tonic-gate int 497c478bd9Sstevel@tonic-gate valid_login(char *login, struct passwd **pptr, int *warning) 507c478bd9Sstevel@tonic-gate { 517c478bd9Sstevel@tonic-gate struct passwd *t_pptr; 527c478bd9Sstevel@tonic-gate char *ptr = login; 537c478bd9Sstevel@tonic-gate int bad1char, badc, clower, len; 547c478bd9Sstevel@tonic-gate char c; 55*0a1278f2SGary Mills char action; 567c478bd9Sstevel@tonic-gate 577c478bd9Sstevel@tonic-gate len = 0; clower = 0; badc = 0; bad1char = 0; 587c478bd9Sstevel@tonic-gate *warning = 0; 597c478bd9Sstevel@tonic-gate if (!login || !*login) 607c478bd9Sstevel@tonic-gate return (INVALID); 617c478bd9Sstevel@tonic-gate 627c478bd9Sstevel@tonic-gate c = *ptr; 637c478bd9Sstevel@tonic-gate if (!isalpha(c)) 647c478bd9Sstevel@tonic-gate bad1char++; 657c478bd9Sstevel@tonic-gate for (; c != NULL; ptr++, c = *ptr) { 667c478bd9Sstevel@tonic-gate len++; 677c478bd9Sstevel@tonic-gate if (!isprint(c) || (c == ':') || (c == '\n')) 687c478bd9Sstevel@tonic-gate return (INVALID); 697c478bd9Sstevel@tonic-gate if (!isalnum(c) && c != '_' && c != '-' && c != '.') 707c478bd9Sstevel@tonic-gate badc++; 717c478bd9Sstevel@tonic-gate if (islower(c)) 727c478bd9Sstevel@tonic-gate clower++; 737c478bd9Sstevel@tonic-gate } 747c478bd9Sstevel@tonic-gate 75*0a1278f2SGary Mills action = 'w'; 76*0a1278f2SGary Mills if (defopen(DEFAULT_USERADD) == 0) { 77*0a1278f2SGary Mills char *defptr; 78*0a1278f2SGary Mills 79*0a1278f2SGary Mills if ((defptr = defread("EXCEED_TRAD=")) != NULL) { 80*0a1278f2SGary Mills char let = tolower(*defptr); 81*0a1278f2SGary Mills 82*0a1278f2SGary Mills switch (let) { 83*0a1278f2SGary Mills case 'w': /* warning */ 84*0a1278f2SGary Mills case 'e': /* error */ 85*0a1278f2SGary Mills case 's': /* silent */ 86*0a1278f2SGary Mills action = let; 87*0a1278f2SGary Mills break; 88*0a1278f2SGary Mills } 89*0a1278f2SGary Mills } 90*0a1278f2SGary Mills (void) defopen((char *)NULL); 91*0a1278f2SGary Mills } 92*0a1278f2SGary Mills 937c478bd9Sstevel@tonic-gate if (len > LOGNAME_MAX) 94*0a1278f2SGary Mills return (LONGNAME); 95*0a1278f2SGary Mills 96*0a1278f2SGary Mills if (len > LOGNAME_MAX_TRAD) { 97*0a1278f2SGary Mills if (action == 'w') 987c478bd9Sstevel@tonic-gate *warning = *warning | WARN_NAME_TOO_LONG; 99*0a1278f2SGary Mills else if (action == 'e') 100*0a1278f2SGary Mills return (LONGNAME); 101*0a1278f2SGary Mills } 102*0a1278f2SGary Mills 1037c478bd9Sstevel@tonic-gate if (clower == 0) 1047c478bd9Sstevel@tonic-gate *warning = *warning | WARN_NO_LOWERCHAR; 1057c478bd9Sstevel@tonic-gate if (badc != 0) 1067c478bd9Sstevel@tonic-gate *warning = *warning | WARN_BAD_LOGNAME_CHAR; 1077c478bd9Sstevel@tonic-gate if (bad1char != 0) 1087c478bd9Sstevel@tonic-gate *warning = *warning | WARN_BAD_LOGNAME_FIRST; 1097c478bd9Sstevel@tonic-gate 1107c478bd9Sstevel@tonic-gate if ((t_pptr = getpwnam(login)) != NULL) { 1117c478bd9Sstevel@tonic-gate if (pptr) *pptr = t_pptr; 1127c478bd9Sstevel@tonic-gate return (NOTUNIQUE); 1137c478bd9Sstevel@tonic-gate } 1147c478bd9Sstevel@tonic-gate return (UNIQUE); 1157c478bd9Sstevel@tonic-gate } 116