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| <h4 class="subsection">29.14.1 The Data Structure for a Group</h4> |
| |
| <p>The functions and data structures for accessing the system group |
| database are declared in the header file <samp><span class="file">grp.h</span></samp>. |
| <a name="index-grp_002eh-3409"></a> |
| <!-- grp.h --> |
| <!-- POSIX.1 --> |
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| <div class="defun"> |
| — Data Type: <b>struct group</b><var><a name="index-struct-group-3410"></a></var><br> |
| <blockquote><p>The <code>group</code> structure is used to hold information about an entry in |
| the system group database. It has at least the following members: |
| |
| <dl> |
| <dt><code>char *gr_name</code><dd>The name of the group. |
| |
| <br><dt><code>gid_t gr_gid</code><dd>The group ID of the group. |
| |
| <br><dt><code>char **gr_mem</code><dd>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. |
| </dl> |
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