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 (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2006 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 #pragma ident "%Z%%M% %I% %E% SMI" 32 /* EMACS_MODES: !fill, lnumb, !overwrite, !nodelete, !picture */ 33 34 #include "stdio.h" 35 #include "string.h" 36 #include "errno.h" 37 #include "sys/types.h" 38 #include <syslog.h> 39 40 #include "lp.h" 41 #include "class.h" 42 43 /** 44 ** getclass() - READ CLASS FROM TO DISK 45 **/ 46 47 CLASS * 48 getclass(char *name) 49 { 50 static long lastdir = -1; 51 52 CLASS *clsp; 53 54 char *file, 55 buf[BUFSIZ]; 56 57 int fd; 58 59 syslog(LOG_DEBUG, "getclass(%s)", name ? name : ""); 60 61 if (!name || !*name) { 62 errno = EINVAL; 63 return (0); 64 } 65 66 /* 67 * Getting ``all''? If so, jump into the directory 68 * wherever we left off. 69 */ 70 if (STREQU(NAME_ALL, name)) { 71 if (!(name = next_file(Lp_A_Classes, &lastdir))) 72 return (0); 73 } else 74 lastdir = -1; 75 76 /* 77 * Get the class list. 78 */ 79 80 if (!(file = getclassfile(name))) 81 return (0); 82 83 if ((fd = open_locked(file, "r", 0)) < 0) { 84 Free (file); 85 return (0); 86 } 87 Free (file); 88 89 clsp = (CLASS *)calloc(sizeof (*clsp), 1); 90 91 if (!(clsp->name = Strdup(name))) { 92 Free (clsp); 93 close(fd); 94 errno = ENOMEM; 95 return (0); 96 } 97 98 clsp->members = 0; 99 errno = 0; 100 while (fdgets(buf, BUFSIZ, fd)) { 101 buf[strlen(buf) - 1] = 0; 102 addlist (&clsp->members, buf); 103 } 104 if (errno != 0) { 105 int save_errno = errno; 106 107 freelist (clsp->members); 108 Free (clsp->name); 109 Free (clsp); 110 close(fd); 111 errno = save_errno; 112 return (0); 113 } 114 close(fd); 115 116 if (!clsp->members) { 117 Free (clsp->name); 118 Free (clsp); 119 errno = EBADF; 120 return (0); 121 } 122 123 return (clsp); 124 } 125