sysconf(3P)                                           sysconf(3P)



     NAME
          sysconf - get configurable system variables

     SYNOPSIS
          #include <unistd.h>

          long sysconf(name)
          int name;

     DESCRIPTION
          sysconf allows an application to determine the current value
          of a configurable system variable.

          name represents the system variable to be queried.  Allow-
          able values for name are:

             _SC_ARG_MAX
             _SC_CHILD_MAX
             _SC_CLK_TCK
             _SC_NGROUPS_MAX
             _SC_OPEN_MAX
             _SC_PASS_MAX
             _SC_PID_MAX
             _SC_UID_MAX
             _SC_EXIT_SIGHUP
             _SC_JOB_CONTROL
             _SC_KILL_PID_NEG1
             _SC_KILL_SAVED
             _SC_PGID_CLEAR
             _SC_SAVED_IDS
             _SC_VERSION


     RETURN VALUE
          sysconf returns the current value of the specified variable.
          The value returned will not be more restrictive than the
          value described to the application when it was compiled with
          <limits.h> or <unistd.h>.  The value will not change during
          the lifetime of the calling process.

     ERRORS
          If name is not defined on the system or name is invalid,
          sysconf will return -1.

     SEE ALSO
          pathconf(3P).









     April, 1990                                                     1