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 /* 24 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 25 * Use is subject to license terms. 26 */ 27 28 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 29 /* All Rights Reserved */ 30 31 /* 32 * University Copyright- Copyright (c) 1982, 1986, 1988 33 * The Regents of the University of California 34 * All Rights Reserved 35 * 36 * University Acknowledgment- Portions of this document are derived from 37 * software developed by the University of California, Berkeley, and its 38 * contributors. 39 */ 40 41 #pragma ident "%Z%%M% %I% %E% SMI" 42 43 /* 44 * printenv 45 */ 46 47 #include <stdio.h> 48 49 extern char **environ; 50 51 static int prefix(char *cp, char *dp); 52 53 int 54 main(int argc, char *argv[]) 55 { 56 char **ep; 57 int found = 0; 58 59 argc--, argv++; 60 61 if (environ) 62 for (ep = environ; *ep; ep++) 63 if (argc == 0 || prefix(argv[0], *ep)) { 64 char *cp = *ep; 65 66 found++; 67 if (argc) { 68 while (*cp && *cp != '=') 69 cp++; 70 if (*cp == '=') 71 cp++; 72 } 73 (void) printf("%s\n", cp); 74 } 75 return (!found); 76 } 77 78 static int 79 prefix(char *cp, char *dp) 80 { 81 82 while (*cp && *dp && *cp == *dp) 83 cp++, dp++; 84 if (*cp == 0) 85 return (*dp == '='); 86 return (0); 87 } 88