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

6       grp.h - group structure
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SYNOPSIS

9       #include <grp.h>
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DESCRIPTION

12       The  <grp.h>  header  shall  declare  the  structure  group which shall
13       include the following members:
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16              char   *gr_name The name of the group.
17              gid_t   gr_gid  Numerical group ID.
18              char  **gr_mem  Pointer to a null-terminated array of character
19                              pointers to member names.
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21       The gid_t type shall be defined as described in <sys/types.h> .
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23       The following shall be declared as functions and may also be defined as
24       macros. Function prototypes shall be provided.
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27              struct group  *getgrgid(gid_t);
28              struct group  *getgrnam(const char *);
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30              int            getgrgid_r(gid_t, struct group *, char *,
31                                 size_t, struct group **);
32              int            getgrnam_r(const char *, struct group *, char *,
33                                 size_t , struct group **);
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36              struct group  *getgrent(void);
37              void           endgrent(void);
38              void           setgrent(void);
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41       The following sections are informative.
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APPLICATION USAGE

44       None.
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RATIONALE

47       None.
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FUTURE DIRECTIONS

50       None.
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SEE ALSO

53       <sys/types.h>  ,  the System Interfaces volume of IEEE Std 1003.1-2001,
54       endgrent(), getgrgid(), getgrnam()
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57       Portions of this text are reprinted and reproduced in  electronic  form
58       from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
59       -- Portable Operating System Interface (POSIX),  The  Open  Group  Base
60       Specifications  Issue  6,  Copyright  (C) 2001-2003 by the Institute of
61       Electrical and Electronics Engineers, Inc and The Open  Group.  In  the
62       event of any discrepancy between this version and the original IEEE and
63       The Open Group Standard, the original IEEE and The Open Group  Standard
64       is  the  referee document. The original Standard can be obtained online
65       at http://www.opengroup.org/unix/online.html .
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69IEEE/The Open Group                  2003                           <grp.h>(P)
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