sys/src/ape/lib/ap/posix/sysconf.c

   1 #include        <stdio.h>
   2 #include        <unistd.h>
   3 #include        <limits.h>
   4 #include        <time.h>
   5 #include        <errno.h>
   6 #include        <sys/limits.h>
   7
   8 long
   9 sysconf(int name)
  10 {
  11         switch(name)
  12         {
  13         case _SC_ARG_MAX:
  14                 return ARG_MAX;
  15         case _SC_CHILD_MAX:
  16                 return CHILD_MAX;
  17         case _SC_CLK_TCK:
  18                 return CLOCKS_PER_SEC;
  19         case _SC_NGROUPS_MAX:
  20                 return NGROUPS_MAX;
  21         case _SC_OPEN_MAX:
  22                 return OPEN_MAX;
  23         case _SC_JOB_CONTROL:
  24 #ifdef  _POSIX_JOB_CONTROL
  25                 return _POSIX_JOB_CONTROL;
  26 #else
  27                 return -1;
  28 #endif
  29         case _SC_SAVED_IDS:
  30 #ifdef  _POSIX_SAVED_IDS
  31                 return _POSIX_SAVED_IDS;
  32 #else
  33                 return -1;
  34 #endif
  35         case _SC_VERSION:
  36                 return _POSIX_VERSION;
  37         case _SC_LOGIN_NAME_MAX:
  38                 return L_cuserid;
  39         }
  40         errno = EINVAL;
  41         return -1;
  42 }