1168404Spjd/* 2168404Spjd * CDDL HEADER START 3168404Spjd * 4168404Spjd * The contents of this file are subject to the terms of the 5168404Spjd * Common Development and Distribution License (the "License"). 6168404Spjd * You may not use this file except in compliance with the License. 7168404Spjd * 8168404Spjd * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9168404Spjd * or http://www.opensolaris.org/os/licensing. 10168404Spjd * See the License for the specific language governing permissions 11168404Spjd * and limitations under the License. 12168404Spjd * 13168404Spjd * When distributing Covered Code, include this CDDL HEADER in each 14168404Spjd * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15168404Spjd * If applicable, add the following below this CDDL HEADER, with the 16168404Spjd * fields enclosed by brackets "[]" replaced with your own identifying 17168404Spjd * information: Portions Copyright [yyyy] [name of copyright owner] 18168404Spjd * 19168404Spjd * CDDL HEADER END 20178414Sjb * 21178414Sjb * $FreeBSD$ 22168404Spjd */ 23168404Spjd/* 24168404Spjd * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 25168404Spjd * Use is subject to license terms. 26168404Spjd */ 27168404Spjd 28168404Spjd#include <sys/param.h> 29168404Spjd#include <sys/string.h> 30219089Spjd#include <sys/kmem.h> 31219089Spjd#include <machine/stdarg.h> 32168404Spjd 33168404Spjd#define IS_DIGIT(c) ((c) >= '0' && (c) <= '9') 34168404Spjd 35168404Spjd#define IS_ALPHA(c) \ 36168404Spjd (((c) >= 'a' && (c) <= 'z') || ((c) >= 'A' && (c) <= 'Z')) 37168404Spjd 38168404Spjdchar * 39168404Spjdstrpbrk(const char *s, const char *b) 40168404Spjd{ 41168404Spjd const char *p; 42168404Spjd 43168404Spjd do { 44168404Spjd for (p = b; *p != '\0' && *p != *s; ++p) 45168404Spjd ; 46168404Spjd if (*p != '\0') 47168404Spjd return ((char *)s); 48168404Spjd } while (*s++); 49168404Spjd 50168404Spjd return (NULL); 51168404Spjd} 52168404Spjd 53168404Spjd/* 54168404Spjd * Convert a string into a valid C identifier by replacing invalid 55168404Spjd * characters with '_'. Also makes sure the string is nul-terminated 56168404Spjd * and takes up at most n bytes. 57168404Spjd */ 58168404Spjdvoid 59168404Spjdstrident_canon(char *s, size_t n) 60168404Spjd{ 61168404Spjd char c; 62168404Spjd char *end = s + n - 1; 63168404Spjd 64168404Spjd if ((c = *s) == 0) 65168404Spjd return; 66168404Spjd 67168404Spjd if (!IS_ALPHA(c) && c != '_') 68168404Spjd *s = '_'; 69168404Spjd 70168404Spjd while (s < end && ((c = *(++s)) != 0)) { 71168404Spjd if (!IS_ALPHA(c) && !IS_DIGIT(c) && c != '_') 72168404Spjd *s = '_'; 73168404Spjd } 74168404Spjd *s = 0; 75168404Spjd} 76219089Spjd 77219089Spjd/* 78219089Spjd * Do not change the length of the returned string; it must be freed 79219089Spjd * with strfree(). 80219089Spjd */ 81219089Spjdchar * 82219089Spjdkmem_asprintf(const char *fmt, ...) 83219089Spjd{ 84219089Spjd int size; 85219089Spjd va_list adx; 86219089Spjd char *buf; 87219089Spjd 88219089Spjd va_start(adx, fmt); 89219089Spjd size = vsnprintf(NULL, 0, fmt, adx) + 1; 90219089Spjd va_end(adx); 91219089Spjd 92219089Spjd buf = kmem_alloc(size, KM_SLEEP); 93219089Spjd 94219089Spjd va_start(adx, fmt); 95219089Spjd (void) vsnprintf(buf, size, fmt, adx); 96219089Spjd va_end(adx); 97219089Spjd 98219089Spjd return (buf); 99219089Spjd} 100219089Spjd 101219089Spjdvoid 102219089Spjdstrfree(char *str) 103219089Spjd{ 104219089Spjd ASSERT(str != NULL); 105219089Spjd kmem_free(str, strlen(str) + 1); 106219089Spjd} 107