grp.h man page

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NAME
       grp.h - group structure



SYNOPSIS
       #include <grp.h>



DESCRIPTION
       The  <grp.h>  header  shall  declare  the  structure  group which shall
       include the following members:


              char   *gr_name The name of the group.
              gid_t   gr_gid  Numerical group ID.
              char  **gr_mem  Pointer to a null-terminated array of character
                              pointers to member names.

       The gid_t type shall be defined 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.


              struct group  *getgrgid(gid_t);
              struct group  *getgrnam(const char *);

              int            getgrgid_r(gid_t, struct group *, char *,
                                 size_t, struct group **);
              int            getgrnam_r(const char *, struct group *, char *,
                                 size_t , struct group **);


              struct group  *getgrent(void);
              void           endgrent(void);
              void           setgrent(void);


       The following sections are informative.



APPLICATION USAGE
       None.



RATIONALE
       None.



FUTURE DIRECTIONS
       None.



SEE ALSO
       <sys/types.h>  ,  the System Interfaces volume of IEEE Std 1003.1-2001,
       endgrent(), getgrgid(), getgrnam()



COPYRIGHT
       Portions of this text are reprinted and reproduced in  electronic  form
       from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
       -- Portable Operating System Interface (POSIX),  The  Open  Group  Base
       Specifications  Issue  6,  Copyright  (C) 2001-2003 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 .



IEEE/The Open Group                  2003                           <grp.h>(P)





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