progettoso/lib/utils/strsep_gnu.c

/* Copyright (C) 1992-2019 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.
   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.
   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <http://www.gnu.org/licenses/>.  */
#include <string.h>

#include "strsep_gnu.h"

char *
strsep_gnu (char **stringp, const char *delim)
{
#if defined(__APPLE__) || defined(__FreeBSD__)
    return strsep(stringp, delim);
#endif /* __APPLE__ or __FreeBSD__ */

#if defined(__linux__)
    char *begin, *end;
    begin = *stringp;
    if (begin == NULL)
	return NULL;
    /* Find the end of the token.  */
    end = begin + strcspn(begin, delim);
    if (*end)
    {
	/* Terminate the token and set *STRINGP past NUL character. */
	*end++ = '\0';
	*stringp = end;
    }
    else
	/* No more delimiters; this is the last token. */
	*stringp = NULL;
    return begin;
#endif /* __linux__ */
}