Expand description
Safe wrappers around functions found in libc “unistd.h” header
Modules§
Structs§
- Access
Flags - Options for access()
- Gid
- Group identifier
- Group
- Representation of a Group, based on
libc::group - Pid
- Process identifier
- ResGid
- Real, effective and saved group IDs.
- ResUid
- Real, effective and saved user IDs.
- Uid
- User identifier
- User
- Representation of a User, based on
libc::passwd
Enums§
- Fchownat
Flags - Flags for
fchownatfunction. - Fork
Result - Represents the successful result of calling
fork - Linkat
Flags - Flags for
linkatfunction. - Pathconf
Var - Variable names for
pathconf - Sysconf
Var - Variable names for
sysconf - Unlinkat
Flags - Flags for
unlinkatfunction. - Whence
- Directive that tells
lseekandlseek64what the offset is relative to.
Constants§
- ROOT
- Constant for UID = 0
Functions§
- access
- Checks the file named by
pathfor accessibility according to the flags given byamodeSee access(2) - chdir
- Change the current working directory of the calling process (see chdir(2)).
- chown
- Change the ownership of the file at
pathto be owned by the specifiedowner(user) andgroup(see chown(2)). - chroot
- close
- Close a raw file descriptor
- daemon
- Daemonize this process by detaching from the controlling terminal (see daemon(3)).
- 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)).
- execveat
- Execute program relative to a directory file descriptor (see execveat(2)).
- execvp
- Replace the current process image with a new one and replicate shell
PATHsearching behavior (see exec(3)). - execvpe
- Replace the current process image with a new one and replicate shell
PATHsearching behavior (seeexecvpe(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
fdto be owned by the specifiedowner(user) andgroup(see fchown(2)). - fchownat
- Change the ownership of the file at
pathto be owned by the specifiedowner(user) andgroup. - fdatasync
- Synchronize the data of a file
- fexecve
- Replace the current process image with a new one (see fexecve(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
- getgrouplist
- Calculate the supplementary group access list.
- 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
CStrin 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)).
- getresgid
- Gets the real, effective, and saved group IDs.
- getresuid
- Gets the real, effective, and saved user IDs.
- getsid
- Get the process group ID of a session leader getsid(2).
- gettid
- Get the caller’s thread ID (see gettid(2).
- getuid
- Get a real user ID
- initgroups
- Initialize the supplementary group access list.
- isatty
- linkat
- Link one file to another file
- lseek
- Move the read/write file offset.
- lseek64
- mkdir
- Creates new directory
pathwith access rightsmode. (see mkdir(2)) - mkfifo
- Creates new fifo special file (named pipe) with path
pathand access rightsmode. - mkfifoat
- Creates new fifo special file (named pipe) with path
pathand access rightsmode. - mkstemp
- Creates a regular file which persists even after process termination
- pathconf
- Get path-dependent configurable system variables (see pathconf(2))
- pause
- Suspend the thread until a signal is received.
- pipe
- Create an interprocess channel.
- pipe2
- Like
pipe, but allows setting certain file descriptor flags. - pivot_
root - read
- Read from a raw file descriptor.
- setegid
- Set the effective group ID
- seteuid
- Set the effective user ID
- setfsgid
- 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.
- setfsuid
- 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.
- setgid
- Set the group ID
- setgroups
- Set the list of supplementary group IDs for the calling process.
- sethostname
- Set the system host name (see sethostname(2)).
- setpgid
- Set a process group ID (see setpgid(2)).
- setresgid
- Sets the real, effective, and saved gid. (see setresuid(2))
- setresuid
- Sets the real, effective, and saved uid. (see setresuid(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
- symlinkat
- Creates a symbolic link at
path2which points topath1. - sync
- Commit filesystem caches to disk
- 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)).
- truncate
- Truncate a file to a specified length
- ttyname
- Get the name of the terminal device that is open on file descriptor fd
(see
ttyname(3)). - unlink
- Remove a directory entry
- unlinkat
- Remove a directory entry
- write
- Write to a raw file descriptor.