GNU Info

(libc.info)Group Data Structure

---

Next: Lookup Group Up: Group Database

---

Enter node , (file) or (file)node

The Data Structure for a Group
------------------------------

   The functions and data structures for accessing the system group
database are declared in the header file `grp.h'.

 - Data Type: struct group
     The `group' structure is used to hold information about an entry in
     the system group database.  It has at least the following members:

    `char *gr_name'
          The name of the group.

    `gid_t gr_gid'
          The group ID of the group.

    `char **gr_mem'
          A vector of pointers to the names of users in the group.
          Each user name is a null-terminated string, and the vector
          itself is terminated by a null pointer.