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1 : /* Test closing a file or socket. 2 : Copyright (C) 2011-2020 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 : #include <unistd.h> 20 : 21 : #include "signature.h" 22 : SIGNATURE_CHECK (close, int, (int)); 23 : 24 : #include <errno.h> 25 : 26 : #include "macros.h" 27 : 28 : int 29 1 : main (void) 30 : { 31 : /* Test behaviour for invalid file descriptors. */ 32 : { 33 1 : errno = 0; 34 1 : ASSERT (close (-1) == -1); 35 1 : ASSERT (errno == EBADF); 36 : } 37 : { 38 1 : close (99); 39 1 : errno = 0; 40 1 : ASSERT (close (99) == -1); 41 1 : ASSERT (errno == EBADF); 42 : } 43 : 44 1 : return 0; 45 : }