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/* Routines for dealing with '\0' separated arg vectors.
Copyright (C) 1995-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Written by Miles Bader <miles@gnu.ai.mit.edu>
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 <stdlib.h>
#include <string.h>
/* Make a '\0' separated arg vector from a unix argv vector, returning it in
ARGZ, and the total length in LEN. If a memory allocation error occurs,
ENOMEM is returned, otherwise 0. */
error_t
__argz_create (char *const argv[], char **argz, size_t *len)
{
int argc;
size_t tlen = 0;
char *const *ap;
char *p;
for (argc = 0; argv[argc] != NULL; ++argc)
tlen += strlen (argv[argc]) + 1;
if (tlen == 0)
*argz = NULL;
else
{
*argz = malloc (tlen);
if (*argz == NULL)
return ENOMEM;
for (p = *argz, ap = argv; *ap; ++ap, ++p)
p = __stpcpy (p, *ap);
}
*len = tlen;
return 0;
}
weak_alias (__argz_create, argz_create)
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