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/*
* argz.h
* The functions below are "borrowed" from glibc-2.2.3 (argz-next.c).
* This has been done to make atftp compile with uclibc, BSD, Solaris
* and other platform without glic
*
*
* $Id: argz.c,v 1.1 2003/01/21 01:38:35 jp Exp $
*
* Copyright (c) 2000 Jean-Pierre Lefebvre <helix@step.polymtl.ca>
* and Remi Lefebvre <remi@debian.org>
*
* atftp is free software; you can redistribute them and/or modify them
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
*/
#ifndef HAVE_ARGZ
/* Routines for dealing with '\0' separated arg vectors.
Copyright (C) 1995, 96, 97, 98, 99, 2000 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <stdlib.h>
#include "argz.h"
char * argz_next (const char *argz, size_t argz_len, const char *entry)
{
if (entry)
{
if (entry < argz + argz_len)
entry = strchr (entry, '\0') + 1;
return entry >= argz + argz_len ? NULL : (char *) entry;
}
else
if (argz_len > 0)
return (char *) argz;
else
return NULL;
}
error_t argz_create_sep (const char *string, int delim, char **argz, size_t *len)
{
size_t nlen = strlen (string) + 1;
if (nlen > 1)
{
const char *rp;
char *wp;
*argz = (char *) malloc (nlen);
if (*argz == NULL)
return ENOMEM;
rp = string;
wp = *argz;
do
if (*rp == delim)
{
if (wp > *argz && wp[-1] != '\0')
*wp++ = '\0';
else
--nlen;
}
else
*wp++ = *rp;
while (*rp++ != '\0');
if (nlen == 0)
{
free (*argz);
*argz = NULL;
*len = 0;
}
*len = nlen;
}
else
{
*argz = NULL;
*len = 0;
}
return 0;
}
size_t argz_count (const char *argz, size_t len)
{
size_t count = 0;
while (len > 0)
{
size_t part_len = strlen(argz);
argz += part_len + 1;
len -= part_len + 1;
count++;
}
return count;
}
/* Puts pointers to each string in ARGZ, plus a terminating 0 element, into
ARGV, which must be large enough to hold them all. */
void argz_extract (const char *argz, size_t len, char **argv)
{
while (len > 0)
{
size_t part_len = strlen (argz);
*argv++ = (char *) argz;
argz += part_len + 1;
len -= part_len + 1;
}
*argv = 0;
}
#endif
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