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| <h3 class="section">4.6 <code>fdopen</code>—turn open file into a stream</h3> |
| |
| <p><a name="index-fdopen-158"></a><a name="index-g_t_005ffdopen_005fr-159"></a><strong>Synopsis</strong> |
| <pre class="example"> #include <stdio.h> |
| FILE *fdopen(int <var>fd</var>, const char *<var>mode</var>); |
| FILE *_fdopen_r(struct _reent *<var>reent</var>, |
| int <var>fd</var>, const char *<var>mode</var>); |
| |
| </pre> |
| <p><strong>Description</strong><br> |
| <code>fdopen</code> produces a file descriptor of type <code>FILE *</code>, from a |
| descriptor for an already-open file (returned, for example, by the |
| system subroutine <code>open</code> rather than by <code>fopen</code>). |
| The <var>mode</var> argument has the same meanings as in <code>fopen</code>. |
| |
| <p><br> |
| <strong>Returns</strong><br> |
| File pointer or <code>NULL</code>, as for <code>fopen</code>. |
| |
| <p><br> |
| <strong>Portability</strong><br> |
| <code>fdopen</code> is ANSI. |
| |
| <p><br> |
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