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