| 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 | |