pwd.h(0P)		   POSIX Programmer's Manual		     pwd.h(0P)

PROLOG
       This manual page is part of the POSIX Programmer's Manual.  The Linux
       implementation of this interface may differ (consult the corresponding
       Linux manual page for details of Linux behavior), or the interface may
       not be implemented on Linux.

NAME
       pwd.h — password structure

SYNOPSIS
       #include <pwd.h>

DESCRIPTION
       The <pwd.h> header shall define the struct passwd, structure, which
       shall include at least the following members:


	   char	   *pw_name   User's login name.
	   uid_t    pw_uid    Numerical user ID.
	   gid_t    pw_gid    Numerical group ID.
	   char	   *pw_dir    Initial working directory.
	   char	   *pw_shell  Program to use as shell.

       The <pwd.h> header shall define the gid_t, uid_t, and size_t types as
       described in <sys/types.h>.

       The following shall be declared as functions and may also be defined as
       macros. Function prototypes shall be provided.


	   void		  endpwent(void);
	   struct passwd *getpwent(void);
	   struct passwd *getpwnam(const char *);
	   int		  getpwnam_r(const char *, struct passwd *, char *,
			      size_t, struct passwd **);
	   struct passwd *getpwuid(uid_t);
	   int		  getpwuid_r(uid_t, struct passwd *, char *,
			      size_t, struct passwd **);
	   void		  setpwent(void);

       The following sections are informative.

APPLICATION USAGE
       None.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       <sys_types.h>

       The System Interfaces volume of POSIX.1‐2017, endpwent(), getpwnam(),
       getpwuid()

COPYRIGHT
       Portions of this text are reprinted and reproduced in electronic form
       from IEEE Std 1003.1-2017, Standard for Information Technology --
       Portable Operating System Interface (POSIX), The Open Group Base
       Specifications Issue 7, 2018 Edition, Copyright (C) 2018 by the
       Institute of Electrical and Electronics Engineers, Inc and The Open
       Group.  In the event of any discrepancy between this version and the
       original IEEE and The Open Group Standard, the original IEEE and The
       Open Group Standard is the referee document. The original Standard can
       be obtained online at http://www.opengroup.org/unix/online.html .

       Any typographical or formatting errors that appear in this page are
       most likely to have been introduced during the conversion of the source
       files to man page format. To report such errors, see
       https://www.kernel.org/doc/man-pages/reporting_bugs.html .

IEEE/The Open Group		     2017			     pwd.h(0P)