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(7POSIX)