| /* Error-checking wrappers for memstream functions. |
| Copyright (C) 2016-2018 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #ifndef SUPPORT_XMEMSTREAM_H |
| #define SUPPORT_XMEMSTREAM_H |
| |
| #include <stdio.h> |
| #include <sys/cdefs.h> |
| |
| __BEGIN_DECLS |
| |
| /* Wrappers for other libc functions. */ |
| struct xmemstream |
| { |
| FILE *out; |
| char *buffer; |
| size_t length; |
| }; |
| |
| /* Create a new in-memory stream. Initializes *STREAM. After this |
| function returns, STREAM->out is a file descriptor open for |
| writing. errno is preserved, so that the %m format specifier can |
| be used for writing to STREAM->out. */ |
| void xopen_memstream (struct xmemstream *stream); |
| |
| /* Closes STREAM->OUT. After this function returns, STREAM->buffer |
| and STREAM->length denote a memory range which contains the bytes |
| written to the output stream. The caller should free |
| STREAM->buffer. */ |
| void xfclose_memstream (struct xmemstream *stream); |
| |
| __END_DECLS |
| |
| #endif /* SUPPORT_XMEMSTREAM_H */ |