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/*
* Copyright (c) 1998, 1999 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* 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. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
RCSID("$Id: strcollect.c,v 1.1 2000/01/09 10:57:43 assar Exp $");
#endif
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <roken.h>
enum { initial = 10, increment = 5 };
static char **
sub (char **argv, int i, int argc, va_list *ap)
{
do {
if(i == argc) {
/* realloc argv */
char **tmp = realloc(argv, (argc + increment) * sizeof(*argv));
if(tmp == NULL) {
free(argv);
errno = ENOMEM;
return NULL;
}
argv = tmp;
argc += increment;
}
argv[i++] = va_arg(*ap, char*);
} while(argv[i - 1] != NULL);
return argv;
}
/*
* return a malloced vector of pointers to the strings in `ap'
* terminated by NULL.
*/
char **
vstrcollect(va_list *ap)
{
return sub (NULL, 0, 0, ap);
}
/*
*
*/
char **
strcollect(char *first, ...)
{
va_list ap;
char **ret = malloc (initial * sizeof(char *));
if (ret == NULL)
return ret;
ret[0] = first;
va_start(ap, first);
ret = sub (ret, 1, initial, &ap);
va_end(ap);
return ret;
}
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