NetBSD/lib/libc/gen/shquotev.c

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/* $NetBSD: shquotev.c,v 1.2 2001/03/10 20:54:53 christos 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 <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;
}