1/* Placed in the public domain */
2
3#include "openbsd-compat.h"
4
5#if !defined(HAVE_GETPAGESIZE)
6
7#ifdef HAVE_UNISTD_H
8#include <unistd.h>
9#endif
10#include <limits.h>
11
12int
13getpagesize(void)
14{
15#if defined(HAVE_SYSCONF) && defined(_SC_PAGESIZE)
16	long r = sysconf(_SC_PAGESIZE);
17	if (r > 0 && r < INT_MAX)
18		return (int)r;
19#endif
20	/*
21	 * This is at the lower end of common values and appropriate for
22	 * our current use of getpagesize() in recallocarray().
23	 */
24	return 4096;
25}
26
27#endif /* !defined(HAVE_GETPAGESIZE) */
28