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/* Routines for dealing with '\0' separated arg vectors.
Copyright (C) 1995-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Written by Miles Bader <miles@gnu.org>
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
<https://www.gnu.org/licenses/>. */
#include <argz.h>
#include <string.h>
#include <stdlib.h>
/* Delete ENTRY from ARGZ & ARGZ_LEN, if any. */
void
argz_delete (char **argz, size_t *argz_len, char *entry)
{
if (entry)
/* Get rid of the old value for NAME. */
{
size_t entry_len = strlen (entry) + 1;
*argz_len -= entry_len;
memmove (entry, entry + entry_len, *argz_len - (entry - *argz));
if (*argz_len == 0)
{
free (*argz);
*argz = 0;
}
}
}
libc_hidden_def (argz_delete)
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