method

getgrgid

v2_6_3 - Show latest stable - Class: Etc

getgrgid(p1 = v1)

public

Returns information about the group with specified integer group_id, as found in /etc/group.

The information is returned as a Group struct.

See the unix manpage for getgrgid(3) for more detail.

Example:

Etc.getgrgid(100)
#=> #<struct Etc::Group name="users", passwd="x", gid=100, mem=["meta", "root"]>

static VALUE
etc_getgrgid(int argc, VALUE *argv, VALUE obj)
{
#ifdef HAVE_GETGRENT
    VALUE id;
    gid_t gid;
    struct group *grp;

    if (rb_scan_args(argc, argv, "01", &id) == 1) {
        gid = NUM2GIDT(id);
    }
    else {
        gid = getgid();
    }
    grp = getgrgid(gid);
    if (grp == 0) rb_raise(rb_eArgError, "can't find group for %d", (int)gid);
    return setup_group(grp);
#else
    return Qnil;
#endif
}

getgrgid

Example:

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