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PROLOG | NAME | SYNOPSIS | DESCRIPTION | APPLICATION USAGE | RATIONALE | FUTURE DIRECTIONS | SEE ALSO | COPYRIGHT |
grp.h(0P) POSIX Programmer's Manual grp.h(0P)
This manual page is part of the POSIX Programmer's Manual. The Linux
implementation of this interface may differ (consult the
corresponding Linux manual page for details of Linux behavior), or
the interface may not be implemented on Linux.
grp.h — group structure
#include <grp.h>
The <grp.h> header shall declare the group structure, 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 <grp.h> header shall define the gid_t and size_t types 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.
void endgrent(void);
struct group *getgrent(void);
struct group *getgrgid(gid_t);
int getgrgid_r(gid_t, struct group *, char *,
size_t, struct group **);
struct group *getgrnam(const char *);
int getgrnam_r(const char *, struct group *, char *,
size_t , struct group **);
void setgrent(void);
The following sections are informative.
None.
None.
None.
sys_types.h(0p)
The System Interfaces volume of POSIX.1‐2008, endgrent(3p),
getgrgid(3p), getgrnam(3p)
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1, 2013 Edition, Standard for Information
Technology -- Portable Operating System Interface (POSIX), The Open
Group Base Specifications Issue 7, Copyright (C) 2013 by the
Institute of Electrical and Electronics Engineers, Inc and The Open
Group. (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1
applied.) 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.unix.org/online.html .
Any typographical or formatting errors that appear in this page are
most likely to have been introduced during the conversion of the
source files to man page format. To report such errors, see
https://www.kernel.org/doc/man-pages/reporting_bugs.html .
IEEE/The Open Group 2013 grp.h(0P)
Pages that refer to this page: endgrent(3p), getgrgid(3p), getgrnam(3p)