glibc/string/argz-create.c
Thomas Bushnell, BSG 4d4b48753c *** empty log message ***
Fri May 10 16:22:44 1996  Michael I. Bushnell, p/BSG  <mib@gnu.ai.mit.edu>

	* string/argz-create.c (__argz_create): Restore const keyword to
 	ARGV parm.
	* string/argz.h (__argz_create, argz_create): Restore const
 	keyword.

Fri May 10 11:48:03 1996  Miles Bader  <miles@gnu.ai.mit.edu>

	* string/argz.h (argz_create): Fix param type.
	* string/argz-create.c (__argz_create): Remove const from param type.
	* string/envz.c (envz_get): Remove const from return type.
1996-05-10 20:26:39 +00:00

55 lines
1.5 KiB
C

/* 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 <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]);
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)