man0p/grp.h.0p

   1 .\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved
   2 .TH "<grp.h>" P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual"
   3 .\" <grp.h>
   4 .SH NAME
   5 grp.h \- group structure
   6 .SH SYNOPSIS
   7 .LP
   8 \fB#include <grp.h>\fP
   9 .SH DESCRIPTION
  10 .LP
  11 The \fI<grp.h>\fP header shall declare the structure \fBgroup\fP which
  12 shall include the following members:
  13 .sp
  14 .RS
  15 .nf
  16
  17 \fBchar   *gr_name\fP The name of the group. \fB
  18 gid_t   gr_gid \fP Numerical group ID. \fB
  19 char  **gr_mem \fP Pointer to a null-terminated array of character \fB
  20                \fP pointers to member names. \fB
  21 \fP
  22 .fi
  23 .RE
  24 .LP
  25 The \fBgid_t\fP type shall be defined as described in \fI<sys/types.h>\fP
  26 \&.
  27 .LP
  28 The following shall be declared as functions and may also be defined
  29 as macros. Function prototypes shall be provided.
  30 .sp
  31 .RS
  32 .nf
  33
  34 \fBstruct group  *getgrgid(gid_t);
  35 struct group  *getgrnam(const char *);
  36
  37 int            getgrgid_r(gid_t, struct group *, char *,
  38                    size_t, struct group **);
  39 int            getgrnam_r(const char *, struct group *, char *,
  40                    size_t , struct group **);
  41
  42
  43 struct group  *getgrent(void);
  44 void           endgrent(void);
  45 void           setgrent(void);
  46
  47 \fP
  48 .fi
  49 .RE
  50 .LP
  51 \fIThe following sections are informative.\fP
  52 .SH APPLICATION USAGE
  53 .LP
  54 None.
  55 .SH RATIONALE
  56 .LP
  57 None.
  58 .SH FUTURE DIRECTIONS
  59 .LP
  60 None.
  61 .SH SEE ALSO
  62 .LP
  63 \fI<sys/types.h>\fP , the System Interfaces volume of IEEE\ Std\ 1003.1-2001,
  64 \fIendgrent\fP(), \fIgetgrgid\fP(), \fIgetgrnam\fP()
  65 .SH COPYRIGHT
  66 Portions of this text are reprinted and reproduced in electronic form
  67 from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
  68 -- Portable Operating System Interface (POSIX), The Open Group Base
  69 Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
  70 Electrical and Electronics Engineers, Inc and The Open Group. In the
  71 event of any discrepancy between this version and the original IEEE and
  72 The Open Group Standard, the original IEEE and The Open Group Standard
  73 is the referee document. The original Standard can be obtained online at
  74 http://www.opengroup.org/unix/online.html .