FreeBSD kernel libkern code
strsep.c
Go to the documentation of this file.
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/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 1990, 1993
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* The Regents of the University of California. 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. 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[] =
"@(#)strsep.c 8.1 (Berkeley) 6/4/93"
;
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#endif
/* LIBC_SCCS and not lint */
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#include <sys/cdefs.h>
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__FBSDID
(
"$FreeBSD$"
);
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#include <sys/param.h>
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#include <sys/libkern.h>
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/*
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* Get next token from string *stringp, where tokens are possibly-empty
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* strings separated by characters from delim.
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*
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* Writes NULs into the string at *stringp to end tokens.
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* delim need not remain constant from call to call.
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* On return, *stringp points past the last NUL written (if there might
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* be further tokens), or is NULL (if there are definitely no more tokens).
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*
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* If *stringp is NULL, strsep returns NULL.
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*/
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char
*
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strsep
(
char
**stringp,
const
char
*delim)
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{
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char
*s;
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const
char
*spanp;
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int
c
, sc;
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char
*tok;
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if
((s = *stringp) == NULL)
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return
(NULL);
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for
(tok = s;;) {
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c
= *s++;
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spanp = delim;
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do
{
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if
((sc = *spanp++) ==
c
) {
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if
(
c
==
'\0'
)
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s = NULL;
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else
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s[-1] =
'\0'
;
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*stringp = s;
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return
(tok);
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}
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}
while
(sc !=
'\0'
);
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}
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/* NOTREACHED */
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}
c
int c
Definition:
iconv_converter_if.m:68
strsep
char * strsep(char **stringp, const char *delim)
Definition:
strsep.c:53
__FBSDID
__FBSDID("$FreeBSD$")
libkern
strsep.c
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