1f08c3bdfSopenharmony_ci// SPDX-License-Identifier: GPL-2.0-or-later 2f08c3bdfSopenharmony_ci/* 3f08c3bdfSopenharmony_ci * Copyright (c) International Business Machines Corp., 2001 4f08c3bdfSopenharmony_ci * Copyright (c) Red Hat Inc., 2007 5f08c3bdfSopenharmony_ci * 12/2007 Copyed from sendfile03.c by Masatake YAMATO 6f08c3bdfSopenharmony_ci */ 7f08c3bdfSopenharmony_ci 8f08c3bdfSopenharmony_ci/*\ 9f08c3bdfSopenharmony_ci * [Description] 10f08c3bdfSopenharmony_ci * 11f08c3bdfSopenharmony_ci * Testcase to test that sendfile(2) system call returns EAGAIN 12f08c3bdfSopenharmony_ci * when passing full out_fd opened with O_NONBLOCK. 13f08c3bdfSopenharmony_ci */ 14f08c3bdfSopenharmony_ci 15f08c3bdfSopenharmony_ci#include <sys/sendfile.h> 16f08c3bdfSopenharmony_ci#include "tst_test.h" 17f08c3bdfSopenharmony_ci 18f08c3bdfSopenharmony_ci#define MAX_FILL_DATA_LENGTH 0xFFFFFFF 19f08c3bdfSopenharmony_ci 20f08c3bdfSopenharmony_cistatic int p[2]; 21f08c3bdfSopenharmony_cistatic int in_fd; 22f08c3bdfSopenharmony_cistatic int out_fd; 23f08c3bdfSopenharmony_ci 24f08c3bdfSopenharmony_cistatic void setup(void) 25f08c3bdfSopenharmony_ci{ 26f08c3bdfSopenharmony_ci int i; 27f08c3bdfSopenharmony_ci 28f08c3bdfSopenharmony_ci tst_fill_file("in_file", 'a', 10, 1); 29f08c3bdfSopenharmony_ci in_fd = SAFE_OPEN("in_file", O_RDONLY); 30f08c3bdfSopenharmony_ci 31f08c3bdfSopenharmony_ci SAFE_SOCKETPAIR(PF_UNIX, SOCK_DGRAM | SOCK_NONBLOCK, 0, p); 32f08c3bdfSopenharmony_ci out_fd = p[1]; 33f08c3bdfSopenharmony_ci 34f08c3bdfSopenharmony_ci for (i = 0; i < MAX_FILL_DATA_LENGTH; ++i) { 35f08c3bdfSopenharmony_ci TEST(write(out_fd, "a", 1)); 36f08c3bdfSopenharmony_ci if (TST_RET < 0) { 37f08c3bdfSopenharmony_ci if (TST_ERR == EAGAIN) 38f08c3bdfSopenharmony_ci return; 39f08c3bdfSopenharmony_ci else 40f08c3bdfSopenharmony_ci tst_brk(TBROK | TTERRNO, "write(out_fd, buf, 1)"); 41f08c3bdfSopenharmony_ci } 42f08c3bdfSopenharmony_ci } 43f08c3bdfSopenharmony_ci 44f08c3bdfSopenharmony_ci tst_brk(TBROK, "Failed to get EAGAIN after %i bytes", 45f08c3bdfSopenharmony_ci MAX_FILL_DATA_LENGTH); 46f08c3bdfSopenharmony_ci} 47f08c3bdfSopenharmony_ci 48f08c3bdfSopenharmony_cistatic void cleanup(void) 49f08c3bdfSopenharmony_ci{ 50f08c3bdfSopenharmony_ci if (p[0]) 51f08c3bdfSopenharmony_ci SAFE_CLOSE(p[0]); 52f08c3bdfSopenharmony_ci if (p[1]) 53f08c3bdfSopenharmony_ci SAFE_CLOSE(p[1]); 54f08c3bdfSopenharmony_ci SAFE_CLOSE(in_fd); 55f08c3bdfSopenharmony_ci} 56f08c3bdfSopenharmony_ci 57f08c3bdfSopenharmony_cistatic void run(void) 58f08c3bdfSopenharmony_ci{ 59f08c3bdfSopenharmony_ci TST_EXP_FAIL(sendfile(out_fd, in_fd, NULL, 1), EAGAIN, 60f08c3bdfSopenharmony_ci "sendfile(out_fd, in_fd, NULL, 1) with blocked out_fd"); 61f08c3bdfSopenharmony_ci} 62f08c3bdfSopenharmony_ci 63f08c3bdfSopenharmony_cistatic struct tst_test test = { 64f08c3bdfSopenharmony_ci .needs_tmpdir = 1, 65f08c3bdfSopenharmony_ci .cleanup = cleanup, 66f08c3bdfSopenharmony_ci .setup = setup, 67f08c3bdfSopenharmony_ci .test_all = run, 68f08c3bdfSopenharmony_ci}; 69