1 /* Open a stream with a given file descriptor.
2 Copyright (C) 2011-2018 Free Software Foundation, Inc.
3
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3 of the License, or
7 (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <https://www.gnu.org/licenses/>. */
16
17 #include <config.h>
18
19 /* Specification. */
20 #include <stdio.h>
21
22 #include <errno.h>
23
24 #if HAVE_MSVC_INVALID_PARAMETER_HANDLER
25 # include "msvc-inval.h"
26 #endif
27
28 #undef fdopen
29
30 #if HAVE_MSVC_INVALID_PARAMETER_HANDLER
31 static FILE *
fdopen_nothrow(int fd,const char * mode)32 fdopen_nothrow (int fd, const char *mode)
33 {
34 FILE *result;
35
36 TRY_MSVC_INVAL
37 {
38 result = fdopen (fd, mode);
39 }
40 CATCH_MSVC_INVAL
41 {
42 result = NULL;
43 }
44 DONE_MSVC_INVAL;
45
46 return result;
47 }
48 #else
49 # define fdopen_nothrow fdopen
50 #endif
51
52 FILE *
rpl_fdopen(int fd,const char * mode)53 rpl_fdopen (int fd, const char *mode)
54 {
55 int saved_errno = errno;
56 FILE *fp;
57
58 errno = 0;
59 fp = fdopen_nothrow (fd, mode);
60 if (fp == NULL)
61 {
62 if (errno == 0)
63 errno = EBADF;
64 }
65 else
66 errno = saved_errno;
67
68 return fp;
69 }
70