1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved. 4 * 06/1994 AUTHOR: Richard Logan CO-PILOT: William Roske 5 * Copyright (c) 2023 SUSE LLC 6 */ 7 8 /*\ 9 * [Description] 10 * 11 * Basic test for dup(2) of a system pipe descriptor. 12 */ 13 14 #ifndef _GNU_SOURCE 15 #define _GNU_SOURCE 16 #endif 17 18 #include "tst_test.h" 19 20 static int fd[2]; 21 run(void)22static void run(void) 23 { 24 TST_EXP_FD(dup(fd[0]), "dup(%d) read end of the pipe", fd[0]); 25 SAFE_CLOSE(TST_RET); 26 27 TST_EXP_FD(dup(fd[1]), "dup(%d) write end of the pipe", fd[1]); 28 SAFE_CLOSE(TST_RET); 29 } 30 setup(void)31static void setup(void) 32 { 33 fd[0] = -1; 34 35 SAFE_PIPE(fd); 36 } 37 38 static struct tst_test test = { 39 .test_all = run, 40 .setup = setup, 41 .needs_tmpdir = 1, 42 }; 43