bsd-getpagesize.c revision 1.1.1.1
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