1f08c3bdfSopenharmony_ci// SPDX-License-Identifier: GPL-2.0-only 2f08c3bdfSopenharmony_ci/* 3f08c3bdfSopenharmony_ci * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved. 4f08c3bdfSopenharmony_ci * Copyright (c) 2020 SUSE LLC 5f08c3bdfSopenharmony_ci * 6f08c3bdfSopenharmony_ci * 03/30/1992 AUTHOR: William Roske CO-PILOT: Dave Fenner 7f08c3bdfSopenharmony_ci * 8f08c3bdfSopenharmony_ci */ 9f08c3bdfSopenharmony_ci 10f08c3bdfSopenharmony_ci/*\ 11f08c3bdfSopenharmony_ci * [Description] 12f08c3bdfSopenharmony_ci * 13f08c3bdfSopenharmony_ci * Verify that dup(2) syscall executes successfully and allocates 14f08c3bdfSopenharmony_ci * a new file descriptor which refers to the same open file as oldfd. 15f08c3bdfSopenharmony_ci */ 16f08c3bdfSopenharmony_ci 17f08c3bdfSopenharmony_ci#include "tst_test.h" 18f08c3bdfSopenharmony_ci 19f08c3bdfSopenharmony_cistatic int fd; 20f08c3bdfSopenharmony_cistatic struct stat buf1, buf2; 21f08c3bdfSopenharmony_ci 22f08c3bdfSopenharmony_cistatic void verify_dup(void) 23f08c3bdfSopenharmony_ci{ 24f08c3bdfSopenharmony_ci TST_EXP_FD(dup(fd)); 25f08c3bdfSopenharmony_ci 26f08c3bdfSopenharmony_ci SAFE_FSTAT(TST_RET, &buf2); 27f08c3bdfSopenharmony_ci TST_EXP_EQ_LU(buf1.st_ino, buf2.st_ino); 28f08c3bdfSopenharmony_ci 29f08c3bdfSopenharmony_ci SAFE_CLOSE(TST_RET); 30f08c3bdfSopenharmony_ci} 31f08c3bdfSopenharmony_ci 32f08c3bdfSopenharmony_cistatic void setup(void) 33f08c3bdfSopenharmony_ci{ 34f08c3bdfSopenharmony_ci fd = SAFE_OPEN("dupfile", O_RDWR | O_CREAT, 0700); 35f08c3bdfSopenharmony_ci SAFE_FSTAT(fd, &buf1); 36f08c3bdfSopenharmony_ci} 37f08c3bdfSopenharmony_ci 38f08c3bdfSopenharmony_cistatic void cleanup(void) 39f08c3bdfSopenharmony_ci{ 40f08c3bdfSopenharmony_ci if (fd > 0) 41f08c3bdfSopenharmony_ci SAFE_CLOSE(fd); 42f08c3bdfSopenharmony_ci} 43f08c3bdfSopenharmony_ci 44f08c3bdfSopenharmony_cistatic struct tst_test test = { 45f08c3bdfSopenharmony_ci .test_all = verify_dup, 46f08c3bdfSopenharmony_ci .setup = setup, 47f08c3bdfSopenharmony_ci .cleanup = cleanup, 48f08c3bdfSopenharmony_ci .needs_tmpdir = 1, 49f08c3bdfSopenharmony_ci}; 50