luaposix 36.2.1

• Index

Contents

• Functions
• Tables

Modules

• posix
• posix.ctype
• posix.dirent
• posix.errno
• posix.fcntl
• posix.fnmatch
• posix.glob
• posix.grp
• posix.libgen
• posix.poll
• posix.pwd
• posix.sched
• posix.signal
• posix.stdio
• posix.stdlib
• posix.sys.msg
• posix.sys.resource
• posix.sys.socket
• posix.sys.stat
• posix.sys.statvfs
• posix.sys.time
• posix.sys.times
• posix.sys.utsname
• posix.sys.wait
• posix.syslog
• posix.termio
• posix.time
• posix.unistd
• posix.utime

Examples

• abstract-ns-client.lua
• abstract-ns-server.lua
• dir.lua
• dup2.lua
• fork.lua
• fork2.lua
• getopt.lua
• glob.lua
• limit.lua
• lock.lua
• netlink-uevent.lua
• packet-socket.lua
• ping.lua
• poll.lua
• rt_sched.lua
• signal.lua
• socket.lua
• termios.lua
• tree.lua

Module posix.pwd

Password Database Operations.

Query the system password database.

Functions

endpwent ()	Release password database resources.
getpwent ()	Fetch next password entry.
getpwnam (name)	Fetch named user.
getpwuid (uid)	Fetch password entry with given user id.
setpwent ()	Rewind next getpwent back to start of database.

Tables

PosixPasswd

Password record.

Functions

endpwent ()

Release password database resources.

See also:

• endpwent(3)
• getpwent

getpwent ()

Fetch next password entry.

Returns:

PosixPasswd next password record

See also:

• getpwent(3)
• endpwent

Usage:

local pwd = require "posix.pwd"
t = pwd.getpwent ()
while t ~= nil do
  process (t)
  t = pwd.getpwent ()
end
pwd.endpwent ()

getpwnam (name)

Fetch named user.

Parameters:

• name string user name

Returns:

PosixPasswd passwd record for name, if successful

Or

1. nil
2. string error message
3. int errnum

See also:

getpwnam(3)

Usage:

local pwd = require "posix.pwd"
t = pwd.getpwnam "root"

getpwuid (uid)

Fetch password entry with given user id.

Parameters:

• uid int user id

Returns:

PosixPasswd passwd record for uid, if successful

Or

1. nil
2. string error message
3. int errnum

See also:

getpwuid(3)

Usage:

local pwd = require "posix.pwd"
t = pwd.getpwuid (0)

setpwent ()

Rewind next getpwent back to start of database.

See also:

• setpwent(3)
• getpwent

Tables

PosixPasswd

Password record.

Fields:

• pw_name string user's login name
• pw_uid int unique user id
• pw_gid int user's default group id
• pw_dir string initial working directory
• pw_shell string user's login shell path