1 /* $NetBSD: pmon.c,v 1.2 2001/06/14 15:28:56 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 42 #include <machine/pmon.h> 43 44 static char **environ; 45 46 /* 47 * pmon_init: 48 * 49 * Initialize the PMON interface. 50 */ 51 void 52 pmon_init(char *envp[]) 53 { 54 55 if (environ == NULL) 56 environ = envp; 57 #ifdef PMON_DEBUG 58 printf("pmon_init: environ = %p (%p)\n", environ, *environ); 59 #endif 60 } 61 62 /* 63 * pmon_getenv: 64 * 65 * Fetch an environment variable. 66 */ 67 const char * 68 pmon_getenv(const char *var) 69 { 70 const char *rv = NULL; 71 char **env = environ; 72 int i; 73 74 i = strlen(var); 75 76 while (*env != NULL) { 77 #ifdef PMON_DEBUG 78 printf("pmon_getenv: %s\n", *env); 79 #endif 80 if (strncasecmp(var, *env, i) == 0 && 81 (*env)[i] == '=') { 82 rv = &(*env)[i + 1]; 83 break; 84 } 85 env++; 86 } 87 88 return (rv); 89 } 90