| /* |
| * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved. |
| * Copyright (c) 2017 Fujitsu Ltd. |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of version 2 of the GNU General Public License as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it would be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| * |
| * Further, this software is distributed without any warranty that it is |
| * free of the rightful claim of any third person regarding infringement |
| * or the like. Any license provided herein, whether implied or |
| * otherwise, applies only to this software file. Patent licenses, if |
| * any, provided herein do not apply to combinations of this program with |
| * other software, or any other product whatsoever. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| */ |
| |
| #include <stdio.h> |
| #include <string.h> |
| #include <errno.h> |
| #include "tst_test.h" |
| |
| static int fd; |
| |
| static void verify_write(void) |
| { |
| int i, badcount = 0; |
| char buf[BUFSIZ]; |
| |
| memset(buf, 'w', BUFSIZ); |
| |
| SAFE_LSEEK(fd, 0, SEEK_SET); |
| |
| for (i = BUFSIZ; i > 0; i--) { |
| TEST(write(fd, buf, i)); |
| if (TEST_RETURN == -1) { |
| tst_res(TFAIL | TTERRNO, "write failed"); |
| return; |
| } |
| |
| if (TEST_RETURN != i) { |
| badcount++; |
| tst_res(TINFO, "write() returned %ld, expected %d", |
| TEST_RETURN, i); |
| } |
| } |
| |
| if (badcount != 0) |
| tst_res(TFAIL, "write() failed to return proper count"); |
| else |
| tst_res(TPASS, "write() passed"); |
| } |
| |
| static void setup(void) |
| { |
| fd = SAFE_OPEN("test_file", O_RDWR | O_CREAT, 0700); |
| } |
| |
| static void cleanup(void) |
| { |
| if (fd > 0) |
| SAFE_CLOSE(fd); |
| } |
| |
| static struct tst_test test = { |
| .setup = setup, |
| .cleanup = cleanup, |
| .test_all = verify_write, |
| .needs_tmpdir = 1, |
| }; |