xref: /openbsd-src/gnu/lib/libstdc++/libstdc++/libio/iofopen.c (revision c2fb321235c8dbfba0909bc43913400e90646ae7)
1 /* Copyright (C) 1993, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
2    This file is part of the GNU IO Library.
3 
4    This library is free software; you can redistribute it and/or
5    modify it under the terms of the GNU General Public License as
6    published by the Free Software Foundation; either version 2, or (at
7    your option) any later version.
8 
9    This library is distributed in the hope that it will be useful, but
10    WITHOUT ANY WARRANTY; without even the implied warranty of
11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12    General Public License for more details.
13 
14    You should have received a copy of the GNU General Public License
15    along with this library; see the file COPYING.  If not, write to
16    the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
17    MA 02111-1307, USA.
18 
19    As a special exception, if you link this library with files
20    compiled with a GNU compiler to produce an executable, this does
21    not cause the resulting executable to be covered by the GNU General
22    Public License.  This exception does not however invalidate any
23    other reasons why the executable file might be covered by the GNU
24    General Public License.  */
25 
26 #include "libioP.h"
27 #ifdef __STDC__
28 #include <stdlib.h>
29 #endif
30 #ifdef _LIBC
31 # include <shlib-compat.h>
32 #else
33 # define _IO_new_fopen fopen
34 #endif
35 
36 _IO_FILE *
_IO_new_fopen(filename,mode)37 _IO_new_fopen (filename, mode)
38      const char *filename;
39      const char *mode;
40 {
41   struct locked_FILE
42   {
43     struct _IO_FILE_plus fp;
44 #ifdef _IO_MTSAFE_IO
45     _IO_lock_t lock;
46 #endif
47 #if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T || defined(_GLIBCPP_USE_TYPE_WCHAR_T)
48     struct _IO_wide_data wd;
49 #endif /* !(defined _LIBC || defined _GLIBCPP_USE_WCHAR_T) */
50   } *new_f = (struct locked_FILE *) malloc (sizeof (struct locked_FILE));
51 
52   if (new_f == NULL)
53     return NULL;
54 #ifdef _IO_MTSAFE_IO
55   new_f->fp.file._lock = &new_f->lock;
56 #endif
57 #if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T || defined(_GLIBCPP_USE_TYPE_WCHAR_T)
58   _IO_no_init (&new_f->fp.file, 0, 0, &new_f->wd, &_IO_wfile_jumps);
59 #else
60   _IO_no_init (&new_f->fp.file, 1, 0, NULL, NULL);
61 #endif
62   _IO_JUMPS (&new_f->fp) = &_IO_file_jumps;
63   _IO_file_init (&new_f->fp);
64 #if  !_IO_UNIFIED_JUMPTABLES
65   new_f->fp.vtable = NULL;
66 #endif
67   if (_IO_file_fopen ((_IO_FILE *) new_f, filename, mode, 1) != NULL)
68     return (_IO_FILE *) &new_f->fp;
69   _IO_un_link (&new_f->fp);
70   free (new_f);
71   return NULL;
72 }
73 
74 #ifdef _LIBC
75 strong_alias (_IO_new_fopen, __new_fopen)
76 versioned_symbol (libc, _IO_new_fopen, _IO_fopen, GLIBC_2_1);
77 versioned_symbol (libc, __new_fopen, fopen, GLIBC_2_1);
78 #endif
79