lib/libc/sys-minix/getrlimit.c

   1 /*      getrlimit                             Author: Erik van der Kouwe
   2  *      query resource consumtion limits      4 December 2009
   3  *
   4  * Based on these specifications:
   5  * http://www.opengroup.org/onlinepubs/007908775/xsh/getdtablesize.html
   6  * http://www.opengroup.org/onlinepubs/007908775/xsh/getrlimit.html
   7  */
   8
   9 #include <sys/cdefs.h>
  10 #include "namespace.h"
  11
  12 #include <errno.h>
  13 #include <limits.h>
  14 #include <sys/resource.h>
  15 #include <unistd.h>
  16
  17 int getrlimit(int resource, struct rlimit *rlp)
  18 {
  19         rlim_t limit;
  20
  21         switch (resource)
  22         {
  23                 case RLIMIT_CORE:
  24                         /* no core currently produced */
  25                         limit = 0;
  26                         break;
  27
  28                 case RLIMIT_CPU:
  29                 case RLIMIT_DATA:
  30                 case RLIMIT_FSIZE:
  31                 case RLIMIT_STACK:
  32                 case RLIMIT_AS:
  33                         /* no limit enforced (however architectural limits
  34                          * may apply)
  35                          */
  36                         limit = RLIM_INFINITY;
  37                         break;
  38
  39                 case RLIMIT_NOFILE:
  40                         limit = OPEN_MAX;
  41                         break;
  42
  43                 default:
  44                         errno = EINVAL;
  45                         return -1;
  46         }
  47
  48         /* return limit */
  49         rlp->rlim_cur = limit;
  50         rlp->rlim_max = limit;
  51         return 0;
  52 }
  53