2016-12-31 13:06:16 +00:00
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/* Error-checking wrappers for memstream functions.
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2017-01-01 00:14:16 +00:00
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Copyright (C) 2016-2017 Free Software Foundation, Inc.
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2016-12-31 13:06:16 +00:00
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#ifndef SUPPORT_XMEMSTREAM_H
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#define SUPPORT_XMEMSTREAM_H
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#include <stdio.h>
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#include <sys/cdefs.h>
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__BEGIN_DECLS
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/* Wrappers for other libc functions. */
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struct xmemstream
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{
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FILE *out;
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char *buffer;
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size_t length;
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};
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/* Create a new in-memory stream. Initializes *STREAM. After this
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function returns, STREAM->out is a file descriptor open for
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writing. errno is preserved, so that the %m format specifier can
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be used for writing to STREAM->out. */
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void xopen_memstream (struct xmemstream *stream);
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/* Closes STREAM->OUT. After this function returns, STREAM->buffer
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and STREAM->length denote a memory range which contains the bytes
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written to the output stream. The caller should free
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STREAM->buffer. */
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void xfclose_memstream (struct xmemstream *stream);
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__END_DECLS
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#endif /* SUPPORT_XMEMSTREAM_H */
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