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| <h4 class="subsection">29.13.4 Writing a User Entry</h4> |
| |
| <!-- pwd.h --> |
| <!-- SVID --> |
| <div class="defun"> |
| — Function: int <b>putpwent</b> (<var>const struct passwd *p, FILE *stream</var>)<var><a name="index-putpwent-3406"></a></var><br> |
| <blockquote><p>This function writes the user entry <code>*</code><var>p</var> to the stream |
| <var>stream</var>, in the format used for the standard user database |
| file. The return value is zero on success and nonzero on failure. |
| |
| <p>This function exists for compatibility with SVID. We recommend that you |
| avoid using it, because it makes sense only on the assumption that the |
| <code>struct passwd</code> structure has no members except the standard ones; |
| on a system which merges the traditional Unix data base with other |
| extended information about users, adding an entry using this function |
| would inevitably leave out much of the important information. |
| <!-- Then how are programmers to modify the password file? -zw --> |
| |
| <p>The group and user ID fields are left empty if the group or user name |
| starts with a - or +. |
| |
| <p>The function <code>putpwent</code> is declared in <samp><span class="file">pwd.h</span></samp>. |
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