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/* Routines for dealing with '\0' separated arg vectors.
Copyright (C) 1995, 1996 Free Software Foundation, Inc.
Written by Miles Bader <miles@gnu.ai.mit.edu>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2, or (at
your option) any later version.
This program 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
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#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;
memcpy (entry, entry + entry_len, *argz_len - (entry - *argz));
if (*argz_len == 0)
{
free (*argz);
*argz = 0;
}
}
}
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