Module nix::unistd [−][src]
Safe wrappers around functions found in libc “unistd.h” header
Modules
acct | |
alarm | Alarm signal scheduling. |
Structs
AccessFlags | Options for access() |
Gid | Group identifier |
Group | Representation of a Group, based on |
Pid | Process identifier |
Uid | User identifier |
User | Representation of a User, based on |
Enums
FchownatFlags | Flags for |
ForkResult | Represents the successful result of calling |
LinkatFlags | Flags for |
PathconfVar | Variable names for |
SysconfVar | Variable names for |
UnlinkatFlags | Flags for |
Whence | Directive that tells |
Constants
ROOT | Constant for UID = 0 |
Functions
access | Checks the file named by |
chdir | Change the current working directory of the calling process (see chdir(2)). |
chown | Change the ownership of the file at |
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 |
execvpe | Replace the current process image with a new one and replicate shell |
fchdir | Change the current working directory of the process to the one given as an open file descriptor (see fchdir(2)). |
fchownat | Change the ownership of the file at |
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 |
fsync | Synchronize changes to a file |
ftruncate | Truncate a file to a specified length |
getcwd | Returns the current directory as a |
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 |
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)). |
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 |
mkfifo | Creates new fifo special file (named pipe) with path |
mkfifoat | Creates new fifo special file (named pipe) with path |
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 |
pivot_root | |
read | Read from a raw file descriptor. |
setegid | Set the effective group ID |
seteuid | Set the effective user ID |
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 |
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 |
unlink | Remove a directory entry |
unlinkat | Remove a directory entry |
write | Write to a raw file descriptor. |