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/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END * * $FreeBSD: release/9.1.0/sys/cddl/compat/opensolaris/kern/opensolaris_string.c 219089 2011-02-27 19:41:40Z pjd $ */ /* * Copyright 2007 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #include <sys/param.h> #include <sys/string.h> #include <sys/kmem.h> #include <machine/stdarg.h> #define IS_DIGIT(c) ((c) >= '0' && (c) <= '9') #define IS_ALPHA(c) \ (((c) >= 'a' && (c) <= 'z') || ((c) >= 'A' && (c) <= 'Z')) char * strpbrk(const char *s, const char *b) { const char *p; do { for (p = b; *p != '\0' && *p != *s; ++p) ; if (*p != '\0') return ((char *)s); } while (*s++); return (NULL); } /* * Convert a string into a valid C identifier by replacing invalid * characters with '_'. Also makes sure the string is nul-terminated * and takes up at most n bytes. */ void strident_canon(char *s, size_t n) { char c; char *end = s + n - 1; if ((c = *s) == 0) return; if (!IS_ALPHA(c) && c != '_') *s = '_'; while (s < end && ((c = *(++s)) != 0)) { if (!IS_ALPHA(c) && !IS_DIGIT(c) && c != '_') *s = '_'; } *s = 0; } /* * Do not change the length of the returned string; it must be freed * with strfree(). */ char * kmem_asprintf(const char *fmt, ...) { int size; va_list adx; char *buf; va_start(adx, fmt); size = vsnprintf(NULL, 0, fmt, adx) + 1; va_end(adx); buf = kmem_alloc(size, KM_SLEEP); va_start(adx, fmt); (void) vsnprintf(buf, size, fmt, adx); va_end(adx); return (buf); } void strfree(char *str) { ASSERT(str != NULL); kmem_free(str, strlen(str) + 1); }