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+.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved
+.TH "<grp.h>" P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual"
+.\" <grp.h>
+.SH NAME
+grp.h \- group structure
+.SH SYNOPSIS
+.LP
+\fB#include <grp.h>\fP
+.SH DESCRIPTION
+.LP
+The \fI<grp.h>\fP header shall declare the structure \fBgroup\fP which
+shall include the following members:
+.sp
+.RS
+.nf
+
+\fBchar *gr_name\fP The name of the group. \fB
+gid_t gr_gid \fP Numerical group ID. \fB
+char **gr_mem \fP Pointer to a null-terminated array of character \fB
+ \fP pointers to member names. \fB
+\fP
+.fi
+.RE
+.LP
+The \fBgid_t\fP type shall be defined as described in \fI<sys/types.h>\fP
+\&.
+.LP
+The following shall be declared as functions and may also be defined
+as macros. Function prototypes shall be provided.
+.sp
+.RS
+.nf
+
+\fBstruct 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);
+
+\fP
+.fi
+.RE
+.LP
+\fIThe following sections are informative.\fP
+.SH APPLICATION USAGE
+.LP
+None.
+.SH RATIONALE
+.LP
+None.
+.SH FUTURE DIRECTIONS
+.LP
+None.
+.SH SEE ALSO
+.LP
+\fI<sys/types.h>\fP , the System Interfaces volume of IEEE\ Std\ 1003.1-2001,
+\fIendgrent\fP(), \fIgetgrgid\fP(), \fIgetgrnam\fP()
+.SH 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 .