source:
kBuild/vendor/grep/2.12/gnulib-tests/fdopen.c
| Last change on this file was 2595, checked in by , 12 years ago | |
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| File size: 1.5 KB | |
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| 1 | /* Open a stream with a given file descriptor. |
| 2 | Copyright (C) 2011-2012 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 <http://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 * |
| 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 * |
| 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 | } |
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