usr/src/lib/libc/gen/valloc.c

/*
 * Copyright (c) 1980 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that the above copyright notice and this paragraph are
 * duplicated in all such forms and that any documentation,
 * advertising materials, and other materials related to such
 * distribution and use acknowledge that the software was developed
 * by the University of California, Berkeley.  The name of the
 * University may not be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)valloc.c    5.3 (Berkeley) %G%";
#endif /* LIBC_SCCS and not lint */

char    *malloc();

char *
valloc(i)
        int i;
{
        int valsiz = getpagesize(), j;
        char *cp = malloc(i + (valsiz-1));

        j = ((int)cp + (valsiz-1)) &~ (valsiz-1);
        return ((char *)j);
}