minix/lib/libc/sys/svrctl.c

   1 /*      svrctl() - special server control functions.    Author: Kees J. Bot
   2  *                                                              24 Apr 1994
   3  */
   4 #include <lib.h>
   5 #include <stdio.h>
   6 #include <string.h>
   7 #include <sys/svrctl.h>
   8
   9 int svrctl(unsigned long request, void *argp)
  10 {
  11         message m;
  12
  13         memset(&m, 0, sizeof(m));
  14         m.m_lc_svrctl.request = request;
  15         m.m_lc_svrctl.arg = (vir_bytes)argp;
  16
  17         switch (IOCGROUP(request)) {
  18         case 'M': /* old, phasing out */
  19         case 'P': /* to PM */
  20                 return _syscall(PM_PROC_NR, PM_SVRCTL, &m);
  21         case 'F': /* to VFS */
  22                 return _syscall(VFS_PROC_NR, VFS_SVRCTL, &m);
  23         default:
  24                 errno = EINVAL;
  25                 return -1;
  26         }
  27 }