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POSIX 1003.1 - man page for grp.h (posix section 0p)

<grp.h>(P)			    POSIX Programmer's Manual			       <grp.h>(P)

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(), get-
       grgid(), 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 orig-
       inal 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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