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pwd.h(0p) — Linux manual page

PROLOG | NAME | SYNOPSIS | DESCRIPTION | APPLICATION USAGE | RATIONALE | FUTURE DIRECTIONS | SEE ALSO | COPYRIGHT 

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

PROLOG         top

       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         top

       pwd.h — password structure

SYNOPSIS         top

       #include <pwd.h>

DESCRIPTION         top

       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         top

       None.

RATIONALE         top

       None.

FUTURE DIRECTIONS         top

       None.

SEE ALSO         top

       sys_types.h(0p)

       The System Interfaces volume of POSIX.1‐2017, endpwent(3p),
       getpwnam(3p), getpwuid(3p)

COPYRIGHT         top

       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)

Pages that refer to this page: endpwent(3p),  getpwnam(3p),  getpwuid(3p)

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