Module nix::unistd

Safe wrappers around functions found in libc "unistd.h" header

Modules

alarm

Alarm signal scheduling.

Structs

AccessFlags	Options for access()
Gid	Group identifier
Pid	Process identifier
Uid	User identifier

Enums

FchownatFlags	Flags for fchownat function.
ForkResult	Represents the successful result of calling fork
LinkatFlags	Flags for linkat function.
PathconfVar	Variable names for pathconf
SysconfVar	Variable names for sysconf
UnlinkatFlags	Flags for unlinkat function.
Whence	Directive that tells lseek and lseek64 what the offset is relative to.

Constants

ROOT	Constant for UID = 0

Functions

access	Checks the file named by path for accessibility according to the flags given by amode See access(2)
chdir	Change the current working directory of the calling process (see chdir(2)).
chown	Change the ownership of the file at path to be owned by the specified owner (user) and group (see chown(2)).
chroot
close	Close a raw file descriptor
dup	Create a copy of the specified file descriptor (see dup(2)).
dup2	Create a copy of the specified file descriptor using the specified fd (see dup(2)).
dup3	Create a new copy of the specified file descriptor using the specified fd and flags (see dup(2)).
execv	Replace the current process image with a new one (see exec(3)).
execve	Replace the current process image with a new one (see execve(2)).
execvp	Replace the current process image with a new one and replicate shell PATH searching behavior (see exec(3)).
fchdir	Change the current working directory of the process to the one given as an open file descriptor (see fchdir(2)).
fchown	Change the ownership of the file referred to by the open file descriptor fd to be owned by the specified owner (user) and group (see fchown(2)).
fork⚠	Create a new child process duplicating the parent process (see fork(2)).
fpathconf	Like pathconf, but works with file descriptors instead of paths (see fpathconf(2))
fsync	Synchronize changes to a file
ftruncate	Truncate a file to a specified length
getcwd	Returns the current directory as a PathBuf
getegid	Get the effective group ID
geteuid	Get the effective user ID
getgid	Get the real group ID
getgroups	Get the list of supplementary group IDs of the calling process.
gethostname	Get the host name and store it in the provided buffer, returning a pointer the CStr in that buffer on success (see gethostname(2)).
getpgid
getpgrp	Get the group id of the calling process (see getpgrp(3)).
getpid	Get the pid of this process (see getpid(2)).
getppid	Get the pid of this processes' parent (see getpid(2)).
getuid	Get a real user ID
isatty
lseek	Move the read/write file offset.
mkdir	Creates new directory path with access rights mode. (see mkdir(2))
mkstemp	Creates a regular file which persists even after process termination
pathconf	Get path-dependent configurable system variables (see pathconf(2))
pipe	Create an interprocess channel.
pipe2	Like pipe, but allows setting certain file descriptor flags.
read	Read from a raw file descriptor.
setegid	Set the effective group ID
seteuid	Set the effective user ID
setgid	Set the group ID
setpgid	Set a process group ID (see setpgid(2)).
setsid	Create new session and set process group id (see setsid(2)).
setuid	Set the user ID
sleep	Suspend execution for an interval of time
sysconf	Get configurable system variables (see sysconf(3))
tcgetpgrp	Get the terminal foreground process group (see tcgetpgrp(3)).
tcsetpgrp	Set the terminal foreground process group (see tcgetpgrp(3)).
ttyname	Get the name of the terminal device that is open on file descriptor fd (see ttyname(3)).
unlink	Remove a directory entry
write	Write to a raw file descriptor.