72 lines
2.7 KiB
C
72 lines
2.7 KiB
C
/*-
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#if defined(LIBC_SCCS) && !defined(lint)
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/*static char *sccsid = "from: @(#)index.c 5.7 (Berkeley) 2/24/91";*/
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static char *rcsid = "$NetBSD: strchr.c,v 1.2 1997/10/13 11:55:47 lukem Exp $";
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#endif /* LIBC_SCCS and not lint */
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/*
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* XXX This file copied from libc's "index.c", but with the
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* "#define STRCHR" and the #ifndef _KERNEL goop added below.
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*
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* It'd be nice to include the file here unchanged from the libc
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* version (and, preferably, with the same name) but I didn't want to
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* include the baroque strchr/index + asm/C rules here in libkern.
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*/
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#define STRCHR
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#ifndef _KERNEL
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#include <string.h>
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#else
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#include <lib/libkern/libkern.h>
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#define NULL ((char *)0)
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#endif
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char *
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#ifdef STRCHR
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strchr(p, ch)
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#else
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index(p, ch)
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#endif
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register const char *p, ch;
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{
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for (;; ++p) {
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if (*p == ch)
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return((char *)p);
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if (!*p)
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return((char *)NULL);
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}
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/* NOTREACHED */
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}
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