54 lines
1.5 KiB
C
54 lines
1.5 KiB
C
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/* Routines for dealing with '\0' separated arg vectors.
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Copyright (C) 1995, 1996 Free Software Foundation, Inc.
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Written by Miles Bader <miles@gnu.ai.mit.edu>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2, or (at
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your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include <argz.h>
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#include <stdlib.h>
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#include <string.h>
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/* Make a '\0' separated arg vector from a unix argv vector, returning it in
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ARGZ, and the total length in LEN. If a memory allocation error occurs,
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ENOMEM is returned, otherwise 0. */
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error_t
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__argz_create (char **argv, char **argz, size_t *len)
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{
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int argc;
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size_t tlen = 0;
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char *p, **ap;
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for (argc = 0; argv[argc] != NULL; ++argc)
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tlen += strlen (argv[argc]);
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if (tlen == 0)
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*argz = NULL;
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else
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{
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*argz = malloc(tlen);
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if (*argz == NULL)
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return ENOMEM;
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for (p = *argz, ap = argv; *ap; ++ap, ++p)
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p = __stpcpy (p, *ap);
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}
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*len = tlen;
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return 0;
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}
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weak_alias (__argz_create, argz_create)
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