| 1 | /* close replacement. |
| 2 | Copyright (C) 2008-2016 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 <unistd.h> |
| 21 | |
| 22 | #include <errno.h> |
| 23 | |
| 24 | #include "fd-hook.h" |
| 25 | #include "msvc-inval.h" |
| 26 | |
| 27 | #undef close |
| 28 | |
| 29 | #if HAVE_MSVC_INVALID_PARAMETER_HANDLER |
| 30 | static int |
| 31 | close_nothrow (int fd) |
| 32 | { |
| 33 | int result; |
| 34 | |
| 35 | TRY_MSVC_INVAL |
| 36 | { |
| 37 | result = close (fd); |
| 38 | } |
| 39 | CATCH_MSVC_INVAL |
| 40 | { |
| 41 | result = -1; |
| 42 | errno = EBADF; |
| 43 | } |
| 44 | DONE_MSVC_INVAL; |
| 45 | |
| 46 | return result; |
| 47 | } |
| 48 | #else |
| 49 | # define close_nothrow close |
| 50 | #endif |
| 51 | |
| 52 | /* Override close() to call into other gnulib modules. */ |
| 53 | |
| 54 | int |
| 55 | rpl_close (int fd) |
| 56 | { |
| 57 | #if WINDOWS_SOCKETS |
| 58 | int retval = execute_all_close_hooks (close_nothrow, fd); |
| 59 | #else |
| 60 | int retval = close_nothrow (fd); |
| 61 | #endif |
| 62 | |
| 63 | #if REPLACE_FCHDIR |
| 64 | if (retval >= 0) |
| 65 | _gl_unregister_fd (fd); |
| 66 | #endif |
| 67 | |
| 68 | return retval; |
| 69 | } |