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 /* EMACS_MODES: !fill, lnumb, !overwrite, !nodelete, !picture */ 31 32 #include "stdio.h" 33 #include "string.h" 34 #include "errno.h" 35 #include "sys/types.h" 36 #include <syslog.h> 37 38 #include "lp.h" 39 #include "class.h" 40 41 /** 42 ** getclass() - READ CLASS FROM TO DISK 43 **/ 44 45 CLASS * 46 getclass(char *name) 47 { 48 static long lastdir = -1; 49 50 CLASS *clsp; 51 52 char *file, 53 buf[BUFSIZ]; 54 55 int fd; 56 57 syslog(LOG_DEBUG, "getclass(%s)", name ? name : ""); 58 59 if (!name || !*name) { 60 errno = EINVAL; 61 return (0); 62 } 63 64 /* 65 * Getting ``all''? If so, jump into the directory 66 * wherever we left off. 67 */ 68 if (STREQU(NAME_ALL, name)) { 69 if (!(name = next_file(Lp_A_Classes, &lastdir))) 70 return (0); 71 } else 72 lastdir = -1; 73 74 /* 75 * Get the class list. 76 */ 77 78 if (!(file = getclassfile(name))) 79 return (0); 80 81 if ((fd = open_locked(file, "r", 0)) < 0) { 82 Free (file); 83 return (0); 84 } 85 Free (file); 86 87 clsp = (CLASS *)calloc(sizeof (*clsp), 1); 88 89 if (!(clsp->name = Strdup(name))) { 90 Free (clsp); 91 close(fd); 92 errno = ENOMEM; 93 return (0); 94 } 95 96 clsp->members = 0; 97 errno = 0; 98 while (fdgets(buf, BUFSIZ, fd)) { 99 buf[strlen(buf) - 1] = 0; 100 addlist (&clsp->members, buf); 101 } 102 if (errno != 0) { 103 int save_errno = errno; 104 105 freelist (clsp->members); 106 Free (clsp->name); 107 Free (clsp); 108 close(fd); 109 errno = save_errno; 110 return (0); 111 } 112 close(fd); 113 114 if (!clsp->members) { 115 Free (clsp->name); 116 Free (clsp); 117 errno = EBADF; 118 return (0); 119 } 120 121 return (clsp); 122 } 123