diff options
Diffstat (limited to 'libio/memstream.c')
-rw-r--r-- | libio/memstream.c | 139 |
1 files changed, 0 insertions, 139 deletions
diff --git a/libio/memstream.c b/libio/memstream.c deleted file mode 100644 index f83d4a5213..0000000000 --- a/libio/memstream.c +++ /dev/null @@ -1,139 +0,0 @@ -/* Copyright (C) 1995-2017 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/>. */ - -#include "libioP.h" -#include "strfile.h" -#include <stdio.h> -#include <stdlib.h> - - -struct _IO_FILE_memstream -{ - _IO_strfile _sf; - char **bufloc; - _IO_size_t *sizeloc; -}; - - -static int _IO_mem_sync (_IO_FILE* fp) __THROW; -static void _IO_mem_finish (_IO_FILE* fp, int) __THROW; - - -static const struct _IO_jump_t _IO_mem_jumps libio_vtable = -{ - JUMP_INIT_DUMMY, - JUMP_INIT (finish, _IO_mem_finish), - JUMP_INIT (overflow, _IO_str_overflow), - JUMP_INIT (underflow, _IO_str_underflow), - JUMP_INIT (uflow, _IO_default_uflow), - JUMP_INIT (pbackfail, _IO_str_pbackfail), - JUMP_INIT (xsputn, _IO_default_xsputn), - JUMP_INIT (xsgetn, _IO_default_xsgetn), - JUMP_INIT (seekoff, _IO_str_seekoff), - JUMP_INIT (seekpos, _IO_default_seekpos), - JUMP_INIT (setbuf, _IO_default_setbuf), - JUMP_INIT (sync, _IO_mem_sync), - JUMP_INIT (doallocate, _IO_default_doallocate), - JUMP_INIT (read, _IO_default_read), - JUMP_INIT (write, _IO_default_write), - JUMP_INIT (seek, _IO_default_seek), - JUMP_INIT (close, _IO_default_close), - JUMP_INIT (stat, _IO_default_stat), - JUMP_INIT(showmanyc, _IO_default_showmanyc), - JUMP_INIT(imbue, _IO_default_imbue) -}; - -/* Open a stream that writes into a malloc'd buffer that is expanded as - necessary. *BUFLOC and *SIZELOC are updated with the buffer's location - and the number of characters written on fflush or fclose. */ -_IO_FILE * -__open_memstream (char **bufloc, _IO_size_t *sizeloc) -{ - struct locked_FILE - { - struct _IO_FILE_memstream fp; -#ifdef _IO_MTSAFE_IO - _IO_lock_t lock; -#endif - struct _IO_wide_data wd; - } *new_f; - char *buf; - - new_f = (struct locked_FILE *) malloc (sizeof (struct locked_FILE)); - if (new_f == NULL) - return NULL; -#ifdef _IO_MTSAFE_IO - new_f->fp._sf._sbf._f._lock = &new_f->lock; -#endif - - buf = calloc (1, _IO_BUFSIZ); - if (buf == NULL) - { - free (new_f); - return NULL; - } - _IO_init_internal (&new_f->fp._sf._sbf._f, 0); - _IO_JUMPS_FILE_plus (&new_f->fp._sf._sbf) = &_IO_mem_jumps; - _IO_str_init_static_internal (&new_f->fp._sf, buf, _IO_BUFSIZ, buf); - new_f->fp._sf._sbf._f._flags &= ~_IO_USER_BUF; - new_f->fp._sf._s._allocate_buffer = (_IO_alloc_type) malloc; - new_f->fp._sf._s._free_buffer = (_IO_free_type) free; - - new_f->fp.bufloc = bufloc; - new_f->fp.sizeloc = sizeloc; - - return (_IO_FILE *) &new_f->fp._sf._sbf; -} -libc_hidden_def (__open_memstream) -weak_alias (__open_memstream, open_memstream) - - -static int -_IO_mem_sync (_IO_FILE *fp) -{ - struct _IO_FILE_memstream *mp = (struct _IO_FILE_memstream *) fp; - - if (fp->_IO_write_ptr == fp->_IO_write_end) - { - _IO_str_overflow (fp, '\0'); - --fp->_IO_write_ptr; - } - - *mp->bufloc = fp->_IO_write_base; - *mp->sizeloc = fp->_IO_write_ptr - fp->_IO_write_base; - - return 0; -} - - -static void -_IO_mem_finish (_IO_FILE *fp, int dummy) -{ - struct _IO_FILE_memstream *mp = (struct _IO_FILE_memstream *) fp; - - *mp->bufloc = (char *) realloc (fp->_IO_write_base, - fp->_IO_write_ptr - fp->_IO_write_base + 1); - if (*mp->bufloc != NULL) - { - (*mp->bufloc)[fp->_IO_write_ptr - fp->_IO_write_base] = '\0'; - *mp->sizeloc = fp->_IO_write_ptr - fp->_IO_write_base; - - fp->_IO_buf_base = NULL; - } - - _IO_str_finish (fp, 0); -} |