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@c

@c  COPYRIGHT (c) 1988-2002.

@c  On-Line Applications Research Corporation (OAR).

@c  All rights reserved.

@c

@c  ch04.t,v 1.12 2002/01/17 21:47:45 joel Exp

@c

@chapter Process Environment

@section Process Identification

@subsection Get Process and Parent Process IDs

@example

getpid(), Function, Implemented, SUSP Functionality

getppid(), Function, Implemented, SUSP Functionality

@end example

@section User Identification

@subsection Get Real User Effective User Real Group and Effective Group IDs

@example

getuid(), Function, Implemented, SUSP Functionality

geteuid(), Function, Implemented, SUSP Functionality

getgid(), Function, Implemented, SUSP Functionality

getegid(), Function, Implemented, SUSP Functionality

@end example

@subsection Set User and Group IDs

@example

setuid(), Function, Implemented, SUSP Functionality

setgid(), Function, Implemented, SUSP Functionality

@end example

@subsection Get Supplementary Group IDs

@example

getgroups(), Function, Implemented, SUSP Functionality

@end example

@subsection Get User Name

@example

getlogin(), Function, Implemented, SUSP Functionality

getlogin_r(), Function, Implemented, SUSP Functionality

@end example

@section Process Groups

@subsection Get Process Group ID

@example

getpgrp(), Function, Implemented, SUSP Functionality

@end example

@subsection Create Session and Set Process Group ID

@example

setsid(), Function, Implemented, SUSP Functionality

@end example

@subsection Set Process Group ID for Job Control

@example

setpgid(), Function, Dummy Implementation

@end example

@section System Identification

@subsection Get System Name

@example

struct utsname, Type, Implemented

uname(), Function, Implemented

@end example

@section Time

@subsection Get System Time

@example

time(), Function, Implemented

@end example

@subsection Get Process Times

@example

struct tms, Type, Implemented

times(), Function, Implemented

@end example

NOTE: @code{times} always returns 0 for tms_stime, tms_cutime, and

tms_cstime fields of the @code{struct tms} returned.

@section Environment Variables

@subsection Environment Access

@example

getenv(), Function, Implemented

@end example

@section Terminal Identification

@subsection Generate Terminal Pathname

@example

ctermid(), Function, Implemented

@end example

@subsection Determine Terminal Device Name

@example

ttyname(), Function, Implemented, untested

ttyname_r(), Function, Implemented, untested

isatty(), Function, Implemented

@end example

@section Configurable System Variables

@subsection Get Configurable System Variables

@example

sysconf(), Function, Dummy Implementation

_SC_AIO_LISTIO_MAX, Constant, Implemented

_SC_AIO_MAX, Constant, Implemented

_SC_AIO_PRIO_DELTA_MAX, Constant, Implemented

_SC_ARG_MAX, Constant, Implemented

_SC_CHILD_MAX, Constant, Implemented

_SC_CLK_TCK, Constant, Implemented

CLK_TCK, Constant, Implemented

_SC_DELAYTIMER_MAX, Constant, Implemented

_SC_GETGR_R_SIZE_MAX, Constant, Implemented

_SC_GETPW_R_SIZE_MAX, Constant, Implemented

_SC_LOGIN_NAME_MAX, Constant, Implemented

_SC_MQ_OPEN_MAX, Constant, Implemented

_SC_MQ_PRIO_MAX, Constant, Implemented

_SC_NGROUPS_MAX, Constant, Implemented

_SC_OPEN_MAX, Constant, Implemented

_SC_PAGESIZE, Constant, Implemented

_SC_RTSIG_MAX, Constant, Implemented

_SC_SEM_NSEMS_MAX, Constant, Implemented

_SC_SEM_VALUE_MAX, Constant, Implemented

_SC_SIGQUEUE_MAX, Constant, Implemented

_SC_STREAM_MAX, Constant, Implemented

_SC_THREAD_DESTRUCTOR_ITERATIONS, Constant, Implemented

_SC_THREAD_KEYS_MAX, Constant, Implemented

_SC_THREAD_STACK_MIN, Constant, Implemented

_SC_THREAD_THREADS_MAX, Constant, Implemented

_SC_TIMER_MAX, Constant, Implemented

_SC_TTY_NAME_MAX, Constant, Implemented

_SC_TZNAME_MAX, Constant, Implemented

_SC_ASYNCHRONOUS_IO, Constant, Implemented

_SC_FSYNC, Constant, Implemented

_SC_JOB_CONROL, Constant, Implemented

_SC_MAPPED_FILES, Constant, Implemented

_SC_MEMLOCK, Constant, Implemented

_SC_MEMLOCK_RANGE, Constant, Implemented

_SC_MEMORY_PROTECTION, Constant, Implemented

_SC_MESSAGE_PASSING, Constant, Implemented

_SC_PRIORITIZED_IO, Constant, Implemented

_SC_PRIORITY_SCHEDULING, Constant, Unimplemented

_SC_REALTIME_SIGNALS, Constant, Implemented

_SC_SAVED_IDS, Constant, Implemented

_SC_SEMAPHORES, Constant, Implemented

_SC_SHARED_MEMORY_OBJECTS, Constant, Implemented

_SC_SYNCHRONIZED_IO, Constant, Implemented

_SC_TIMERS, Constant, Implemented

_SC_THREADS, Constant, Implemented

_SC_THREAD_ATTR_STACKADDR, Constant, Implemented

_SC_THREAD_ATTR_STACKSIZE, Constant, Implemented

_SC_THREAD_PRIORITY_SCHEDULING, Constant, Implemented

_SC_THREAD_PRIO_INHERIT, Constant, Implemented

_SC_THREAD_PRIO_PROTECT, Constant, Unimplemented

_SC_THREAD_PROCESS_SHARED, Constant, Implemented

_SC_THREAD_SAFE_FUNCTIONS, Constant, Implemented

_SC_VERSION, Constant, Implemented

@end example