git.zerfleddert.de Git - micropolis/blob - src/tclx/ossupp/ids.c

   1 /*
   2  * ids.c
   3  *
   4  * Public-domain relatively quick-and-dirty implemenation of
   5  * ANSI library routine for System V Unix systems.
   6  *
   7  * It's written in old-style C for maximal portability.
   8  *
   9  * Arnold Robbins
  10  * January, February, 1991
  11  *
  12  * Fixes from ado@elsie.nci.nih.gov
  13  * February 1991
  14  *-----------------------------------------------------------------------------
  15  * $Id: ids.c,v 2.0 1992/10/16 04:52:16 markd Rel $
  16  *-----------------------------------------------------------------------------
  17  */
  18
  19 /*
  20  * To avoid Unix version problems, this code has been simplified to avoid
  21  * const and size_t, however this can cause an incompatible definition on
  22  * ansi-C systems, so a game is played with defines to ignore a strftime
  23  * declaration in time.h
  24  */
  25
  26 #include <sys/types.h>
  27
  28 static uid_t usrID  = 100;
  29 static gid_t grpID  = 10;
  30
  31 static int   procID = 12345;
  32 static int   pgrpID = 10;
  33
  34
  35 /* getppid --- returns the process ID of the parent process */
  36
  37 int
  38 getppid()
  39 {
  40     return procID;
  41 }
  42
  43 /* getpgrp --- returns the process group of the process indicated by pid */
  44
  45 int
  46 getpgrp(pid)
  47     int pid;
  48 {
  49     return pgrpID;
  50 }
  51
  52 /* setpgrp --- sets the process group of the process indicated by pid */
  53
  54 int
  55 setpgrp(pid, pgrp)
  56     int pid;
  57     int pgrp;
  58 {
  59     pgrpID = pgrp;
  60     return pgrp;
  61 }
  62
  63 /* setuid --- sets the real and effective user ID of the current process */
  64
  65 int setuid(uid)
  66     uid_t  uid;
  67 {
  68     usrID = uid;
  69     return 0;
  70 }
  71
  72 /* getgid --- gets the effective group ID of the current process */
  73
  74 uid_t setgid(gid)
  75     gid_t  gid;
  76 {
  77     grpID = gid;
  78     return 0;
  79 }
  80