/* str2qb.c - string to qbuf */

#ifndef	lint
static char *rcsid = "$Header: /var/lib/cvsd/repos/CSRG/43BSDReno/contrib/isode-beta/psap/str2qb.c,v 1.1.1.1 2018/04/24 16:12:56 root Exp $";
#endif

/* 
 * $Header: /var/lib/cvsd/repos/CSRG/43BSDReno/contrib/isode-beta/psap/str2qb.c,v 1.1.1.1 2018/04/24 16:12:56 root Exp $
 *
 *
 * $Log: str2qb.c,v $
 * Revision 1.1.1.1  2018/04/24 16:12:56  root
 * BSD 4.3reno
 *
 * Revision 7.2  90/04/18  08:51:02  mrose
 * touch-up
 * 
 * Revision 7.1  90/02/19  13:09:48  mrose
 * update
 * 
 * Revision 7.0  89/11/23  22:13:49  mrose
 * Release 6.0
 * 
 */

/*
 *				  NOTICE
 *
 *    Acquisition, use, and distribution of this module and related
 *    materials are subject to the restrictions of a license agreement.
 *    Consult the Preface in the User's Manual for the full terms of
 *    this agreement.
 *
 */


/* LINTLIBRARY */

#include <stdio.h>
#include "psap.h"

/*  */

struct qbuf *str2qb (s, len, head)
char   *s;
int	len,
	head;
{
    register struct qbuf *qb,
			 *pb;

    if ((pb = (struct qbuf *) malloc ((unsigned) (sizeof *pb + len))) == NULL)
	return NULL;

    if (head) {
	if ((qb = (struct qbuf *) malloc (sizeof *qb)) == NULL) {
	    free ((char *) pb);
	    return NULL;
	}
	qb -> qb_forw = qb -> qb_back = qb;
	qb -> qb_data = NULL, qb -> qb_len = len;
	insque (pb, qb);
    }
    else {
	pb -> qb_forw = pb -> qb_back = pb;
	qb = pb;
    }

    pb -> qb_data = pb -> qb_base;
    if ((pb -> qb_len = len) > 0 && s)
	bcopy (s, pb -> qb_data, len);

    return qb;
}