patches from bug-gnu-utils to support more architectures
[glibc.git] / libio / iofopen.c
blobcea24152180d04d4172c81c9ed99f55cf401c02a
1 /*
2 Copyright (C) 1993 Free Software Foundation
4 This file is part of the GNU IO Library. This library is free
5 software; you can redistribute it and/or modify it under the
6 terms of the GNU General Public License as published by the
7 Free Software Foundation; either version 2, or (at your option)
8 any later version.
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this library; see the file COPYING. If not, write to the Free
17 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 As a special exception, if you link this library with files
20 compiled with a GNU compiler to produce an executable, this does not cause
21 the resulting executable to be covered by the GNU General Public License.
22 This exception does not however invalidate any other reasons why
23 the executable file might be covered by the GNU General Public License. */
25 #include "libioP.h"
26 #ifdef __STDC__
27 #include <stdlib.h>
28 #endif
30 _IO_FILE *
31 _IO_fopen (filename, mode)
32 const char *filename;
33 const char *mode;
35 struct locked_FILE
37 struct _IO_FILE_plus fp;
38 #ifdef _IO_MTSAFE_IO
39 _IO_lock_t lock;
40 #endif
41 } *new_f = (struct locked_FILE *) malloc (sizeof (struct locked_FILE));
43 if (new_f == NULL)
44 return NULL;
45 #ifdef _IO_MTSAFE_IO
46 new_f->fp.file._lock = &new_f->lock;
47 #endif
48 _IO_init (&new_f->fp.file, 0);
49 _IO_JUMPS (&new_f->fp.file) = &_IO_file_jumps;
50 _IO_file_init (&new_f->fp.file);
51 #if !_IO_UNIFIED_JUMPTABLES
52 new_f->fp.vtable = NULL;
53 #endif
54 if (_IO_file_fopen (&new_f->fp.file, filename, mode) != NULL)
55 return (_IO_FILE *) &new_f->fp;
56 _IO_un_link (&new_f->fp.file);
57 free (new_f);
58 return NULL;
61 weak_alias (_IO_fopen, fopen)