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 12 int 13 getpagesize(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