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 /* 23 * Copyright 1997 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" /* SVr4.0 1.9 */ 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 39 #include "lp.h" 40 #include "class.h" 41 42 /** 43 ** getclass() - READ CLASS FROM TO DISK 44 **/ 45 46 CLASS * 47 getclass(char *name) 48 { 49 static long lastdir = -1; 50 51 static CLASS clsbuf; 52 53 char *file, 54 buf[BUFSIZ]; 55 56 int fd; 57 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 if (!(clsbuf.name = Strdup(name))) { 88 close(fd); 89 errno = ENOMEM; 90 return (0); 91 } 92 93 clsbuf.members = 0; 94 errno = 0; 95 while (fdgets(buf, BUFSIZ, fd)) { 96 buf[strlen(buf) - 1] = 0; 97 addlist (&clsbuf.members, buf); 98 } 99 if (errno != 0) { 100 int save_errno = errno; 101 102 freelist (clsbuf.members); 103 Free (clsbuf.name); 104 close(fd); 105 errno = save_errno; 106 return (0); 107 } 108 close(fd); 109 110 if (!clsbuf.members) { 111 Free (clsbuf.name); 112 errno = EBADF; 113 return (0); 114 } 115 116 return (&clsbuf); 117 } 118