/* $NetBSD: shquotev.c,v 1.5 2005/06/12 05:21:27 lukem Exp $ */

/*
* Copyright (c) 2001 Christopher G. Demetriou
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
*    must display the following acknowledgement:
*          This product includes software developed for the
*          NetBSD Project.  See http://www.NetBSD.org/ for
*          information about NetBSD.
* 4. The name of the author may not be used to endorse or promote products
*    derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* <<Id: LICENSE,v 1.2 2000/06/14 15:57:33 cgd Exp>>
*/

#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
__RCSID("$NetBSD: shquotev.c,v 1.5 2005/06/12 05:21:27 lukem Exp $");
#endif /* LIBC_SCCS and not lint */

#include "namespace.h"
#include <stdlib.h>

/*
* shquotev():
*
* Apply shquote() to a set of strings, separating the results by spaces.
*/

size_t
shquotev(int argc, char * const * argv, char *buf, size_t bufsize)
{
       size_t rv, callrv;
       int i;

       rv = 0;

       if (argc == 0) {
               if (bufsize != 0)
                       *buf = '\0';
               return rv;
       }

       for (i = 0; i < argc; i++) {
               callrv = shquote(argv[i], buf, bufsize);
               if (callrv == (size_t)-1)
                       goto bad;
               rv += callrv;
               buf += callrv;
               bufsize = (bufsize > callrv) ? (bufsize - callrv) : 0;

               if (i < (argc - 1)) {
                       rv++;
                       if (bufsize > 1) {
                               *buf++ = ' ';
                               bufsize--;
                       }
               }
       }

       return rv;

bad:
       return (size_t)-1;
}