Module unistd Copy item path

Modules§

acctacct

Process accounting

alarmsignal

Alarm signal scheduling.

Structs§

AccessFlagsfs

Options for access()

Giduser

Group identifier

Groupuser

Representation of a Group, based on libc::group

Pidprocess

Process identifier

ResGiduser

Real, effective and saved group IDs.

ResUiduser

Real, effective and saved user IDs.

Uiduser

User identifier

Useruser

Representation of a User, based on libc::passwd

Enums§

ForkResultprocess

Represents the successful result of calling fork

PathconfVarfs and feature

Variable names for pathconf

SysconfVarfeature

Variable names for sysconf

UnlinkatFlagsfs

Flags for unlinkat function.

Whencefs

Directive that tells lseek and lseek64 what the offset is relative to.

Constants§

ROOTuser

Constant for UID = 0

Functions§

accessfs

Checks the file named by path for accessibility according to the flags given by amode See access(2)

chdirfs

Change the current working directory of the calling process (see chdir(2)).

chownuser and fs

Change the ownership of the file at path to be owned by the specified owner (user) and group (see chown(2)).

chrootfs

Change a process’s root directory

close

Close a file descriptor.

daemonprocess

Daemonize this process by detaching from the controlling terminal (see daemon(3)).

dupfs

Create a copy of the specified file descriptor.

dup2fs

Create a copy of oldfd using newfd.

dup3fs

Create a new copy of the specified file descriptor using the specified fd and flags.

dup2_raw^⚠fs

Create a copy of oldfd with any fd value you want.

dup2_stderrfs

Duplicate fd with Stderr, i.e., Stderr redirection.

dup2_stdinfs

Duplicate fd with Stdin, i.e., Stdin redirection.

dup2_stdoutfs

Duplicate fd with Stdout, i.e., Stdout redirection.

dup3_raw^⚠fs

Create a new copy of the specified file descriptor using the specified fd and flags.

eaccessfs

Checks the file named by path for accessibility according to the flags given by mode using effective UID, effective GID and supplementary group lists.

execvprocess

Replace the current process image with a new one (see exec(3)).

execveprocess

Replace the current process image with a new one (see execve(2)).

execveatprocess

Execute program relative to a directory file descriptor (see execveat(2)).

execvpprocess

Replace the current process image with a new one and replicate shell PATH searching behavior (see exec(3)).

execvpeprocess

Replace the current process image with a new one and replicate shell PATH searching behavior (see execvpe(3)).

faccessatfs

Checks the file named by dirfd and path for accessibility according to the flags given by mode

fchdirfs

Change the current working directory of the process to the one given as an open file descriptor (see fchdir(2)).

fchownuser and fs

Change the ownership of the file referred to by the open file descriptor fd to be owned by the specified owner (user) and group.

fchownatuser and fs

Change the ownership of the file at path to be owned by the specified owner (user) and group.

fdatasyncfs

Synchronize the data of a file

fexecveprocess

Replace the current process image with a new one (see fexecve(2)).

fork^⚠process

Create a new child process duplicating the parent process (see fork(2)).

fpathconffs and feature

Like pathconf, but works with file descriptors instead of paths (see fpathconf(2))

fsyncfs

Synchronize changes to a file

ftruncatefs

Truncate a file to a specified length

getcwdfs

Returns the current directory as a PathBuf

getegiduser

Get the effective group ID

geteuiduser

Get the effective user ID

getgiduser

Get the real group ID

getgrouplistuser

Calculate the supplementary group access list.

getgroupsuser

Get the list of supplementary group IDs of the calling process.

gethostnamehostname

Get the host name and store it in an internally allocated buffer, returning an OsString on success.

getpgidprocess

Get process group

getpgrpprocess

Get the group id of the calling process (see getpgrp(3)).

getpidprocess

Get the pid of this process (see getpid(2)).

getppidprocess

Get the pid of this processes’ parent (see getpid(2)).

getresgiduser

Gets the real, effective, and saved group IDs.

getresuiduser

Gets the real, effective, and saved user IDs.

getsidprocess

Get the process group ID of a session leader getsid(2).

gettidprocess

Get the caller’s thread ID (see gettid(2).

getuiduser

Get a real user ID

initgroupsuser

Initialize the supplementary group access list.

isattyfs

Determines if the file descriptor refers to a valid terminal type device.

linkatfs

Link one file to another file

lseekfs

Move the read/write file offset.

lseek64fs

Move the read/write file offset.

mkdirfs

Creates new directory path with access rights mode. (see mkdir(2))

mkdtempfs and feature

Creates a directory which persists even after process termination

mkfifofs

Creates new FIFO special file (named pipe) with path path and access rights mode.

mkfifoatfs

Creates new FIFO special file (named pipe) with access rights set to mode in the path specified by dirfd and path.

mkstempfs

Creates a regular file which persists even after process termination

pathconffs and feature

Get path-dependent configurable system variables (see pathconf(2))

pausesignal

Suspend the thread until a signal is received.

pipe

Create an interprocess channel.

pipe2fs

Like pipe, but allows setting certain file descriptor flags.

pivot_rootfs

Change the root file system.

read

Read from a raw file descriptor.

setegiduser

Set the effective group ID

seteuiduser

Set the effective user ID

setfsgidfs and user

Set the group identity used for filesystem checks per-thread. On both success and failure, this call returns the previous filesystem group ID of the caller.

setfsuidfs and user

Set the user identity used for filesystem checks per-thread. On both success and failure, this call returns the previous filesystem user ID of the caller.

setgiduser

Set the group ID

setgroupsuser

Set the list of supplementary group IDs for the calling process.

sethostnamehostname

Set the system host name (see sethostname(2)).

setpgidprocess

Set a process group ID (see setpgid(2)).

setresgiduser

Sets the real, effective, and saved gid. (see setresuid(2))

setresuiduser

Sets the real, effective, and saved uid. (see setresuid(2))

setsidprocess

Create new session and set process group id (see setsid(2)).

setuiduser

Set the user ID

sleep

Suspend execution for an interval of time

symlinkatfs

Creates a symbolic link to path1 in the path specified by dirfd and path2.

syncfs

Commit filesystem caches to disk

syncfsfs

Commit filesystem caches containing file referred to by the open file descriptor fd to disk

sysconffeature

Get configurable system variables (see sysconf(3))

tcgetpgrpprocess and term

Get the terminal foreground process group (see tcgetpgrp(3)).

tcsetpgrpprocess and term

Set the terminal foreground process group (see tcgetpgrp(3)).

truncatefs

Truncate a file to a specified length

ttynameterm

Get the name of the terminal device that is open on file descriptor fd (see ttyname(3)).

unlinkfs

Remove a directory entry

unlinkatfs

Remove a directory entry

write

Write to a raw file descriptor.

Type Aliases§

FchownatFlagsuser and fs

LinkatFlagsfs