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59 lines
1.5 KiB
C
59 lines
1.5 KiB
C
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/* Copyright (C) 2004, 2007 Free Software Foundation, Inc.
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Written by Yoann Vandoorselaere <yoann@prelude-ids.org>.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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/* Specification. */
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#include <string.h>
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char *
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strsep (char **stringp, const char *delim)
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{
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char *start = *stringp;
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char *ptr;
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if (start == NULL)
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return NULL;
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/* Optimize the case of no delimiters. */
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if (delim[0] == '\0')
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{
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*stringp = NULL;
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return start;
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}
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/* Optimize the case of one delimiter. */
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if (delim[1] == '\0')
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ptr = strchr (start, delim[0]);
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else
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/* The general case. */
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ptr = strpbrk (start, delim);
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if (ptr == NULL)
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{
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*stringp = NULL;
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return start;
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}
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*ptr = '\0';
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*stringp = ptr + 1;
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return start;
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}
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