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fdopen
[turn open file into a stream]

SYNOPSIS
#include <stdio.h>

FILE *fdopen(int fd, const char *mode);
FILE *_fdopen_r(void *reent, int fd, const char *mode);

DESCRIPTION
fdopen produces a file descriptor of type, FILE*, from a descriptor for an already-open file (returned, for example, by the system subroutine, open, rather than by fopen). The mode argument has the same meanings as in fopen.

RETURNS
File pointer or NULL, as for fopen.

COMPLIANCE
fdopen is ANSI.