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librock_IOCaptureBegin - Redirect writes to a FILE * into a temporary file.
librock_IOCaptureEndstr - End redirection, and place all redirected data into an allocated string.
#License - #Source code - #Example Use -


#include <librock/target/types.c>
#include <librock/file.h>

struct librock_IOCapture_s *
    librock_FILE *f

char *
     struct librock_IOCapture_s *p,
     char **ppasz


This function issues the fflush(), dup(), dup2() and tmpfile() calls to save the output written to a FILE *. calling librock_IOCaptureEndstr places the captured output into a string, and restores all file descriptors.

This function works under MSVC (WIN32) and Unix/Linux/BSD platforms.

Typical use is

    char *asz = 0;
    struct librock_IOCapture_s *pIOC = librock_IOCaptureBegin((librock_FILE *)stdout);
    printf("This is a test");
    /* . . . */


  malloc, free, dup, dup2, close, tmpfile, fclose, fileno
  rewind, librock_astrfree, librock_astrcat, librock_afgets


  Copyright 1998-2002 Forrest J. Cavalier III,
  Licensed under BSD-ish license, NO WARRANTY. Copies must retain this block.
  License text in <librock/license/librock.txt> librock_LIDESC_HC=12440211096131f5976d36be0cddca4cd9152e45

Source Code

./file/iocapt.c (implementation, plus source of this manual page)

Tests and Supported Platform Types

This is a representative sample. Librock code is highly portable. For a particular platform not reported here, request paid support

librock_IOCaptureBegin passed tests in tiocapt (Unix/Linux/BSD: 2002/08/08 sys=FreeBSD using gcc)
librock_IOCaptureBegin passed tests in tiocapt (WIN32: 2002/08/08 sys=NT 4.0 using MSVC)
librock_IOCaptureEndstr passed tests in tiocapt (Unix/Linux/BSD: 2002/08/08 sys=FreeBSD using gcc)
librock_IOCaptureEndstr passed tests in tiocapt (WIN32: 2002/08/08 sys=NT 4.0 using MSVC)

This software is part of Librock

Rapid reuse, without rework. Details
This page copyright (C) 2002-2003 Forrest J. Cavalier III, d-b-a Mib Software, Saylorsburg PA 18353, USA

Verbatim copying and distribution of this generated page is permitted in any medium provided that no changes are made.
(The source of this manual page may be covered by a more permissive license which allows modifications.)

Want to help? We welcome comments, patches. -- Need help? Request paid support.