GETGRNAM
Section: Linux Programmer's Manual (3)
Updated: April 4, 1993
NAME
getgrnam, getgrgid - get group file entry
SYNOPSIS
#include <grp.h>
#include <sys/types.h>
struct group *getgrnam(const char *name);
struct group *getgrgid(gid_t gid);
DESCRIPTION
The getgrnam() function returns a pointer to a structure containing
the group information from /etc/group for the entry that matches
the group name name.
The getgrgid() function returns a pointer to a structure containing
the group information from /etc/group for the entry that matches
the group gid gid.
The group structure is defined in <grp.h> as follows:
-
struct group {
char *gr_name; /* group name */
char *gr_passwd; /* group password */
gid_t gr_gid; /* group id */
char **gr_mem; /* group members */
};
RETURN VALUE
The getgrnam() and getgrgid() functions return the group
information structure, or NULL if the matching entry is not found or
an error occurs.
ERRORS
- ENOMEM
-
Insufficient memory to allocate group information structure.
FILES
- /etc/group
-
Group database file
CONFORMING TO
SVID 3, POSIX, BSD 4.3
SEE ALSO
fgetgrent(3),
getgrent(3),
setgrent(3),
endgrent(3)