1f08c3bdfSopenharmony_ci// SPDX-License-Identifier: GPL-2.0-or-later 2f08c3bdfSopenharmony_ci/* 3f08c3bdfSopenharmony_ci * Copyright (c) 2015 Cedric Hnyda <chnyda@suse.com> 4f08c3bdfSopenharmony_ci */ 5f08c3bdfSopenharmony_ci 6f08c3bdfSopenharmony_ci /* Description: 7f08c3bdfSopenharmony_ci * Verify that: 8f08c3bdfSopenharmony_ci * 1) kcmp fails with bad pid 9f08c3bdfSopenharmony_ci * 2) kcmp fails with invalid flag 10f08c3bdfSopenharmony_ci * 3) kcmp fails with invalid flag 11f08c3bdfSopenharmony_ci * 4) kcmp fails with invalid flag 12f08c3bdfSopenharmony_ci * 5) kcmp fails with invalid flag 13f08c3bdfSopenharmony_ci * 6) kcmp fails with invalid fd 14f08c3bdfSopenharmony_ci */ 15f08c3bdfSopenharmony_ci 16f08c3bdfSopenharmony_ci#define _GNU_SOURCE 17f08c3bdfSopenharmony_ci 18f08c3bdfSopenharmony_ci#include "tst_test.h" 19f08c3bdfSopenharmony_ci#include "lapi/fcntl.h" 20f08c3bdfSopenharmony_ci#include "lapi/kcmp.h" 21f08c3bdfSopenharmony_ci 22f08c3bdfSopenharmony_ci#define TEST_FILE "test_file" 23f08c3bdfSopenharmony_ci#define TEST_FILE2 "test_file2" 24f08c3bdfSopenharmony_ci 25f08c3bdfSopenharmony_cistatic int fd1; 26f08c3bdfSopenharmony_cistatic int fd2; 27f08c3bdfSopenharmony_cistatic int fd_fake; 28f08c3bdfSopenharmony_cistatic int pid1; 29f08c3bdfSopenharmony_cistatic int pid_unused; 30f08c3bdfSopenharmony_cistatic int fd_fake = -1; 31f08c3bdfSopenharmony_ci 32f08c3bdfSopenharmony_ci#include <sys/types.h> 33f08c3bdfSopenharmony_ci#include <sys/wait.h> 34f08c3bdfSopenharmony_ci#include <limits.h> 35f08c3bdfSopenharmony_ci 36f08c3bdfSopenharmony_cistatic struct test_case { 37f08c3bdfSopenharmony_ci int *pid1; 38f08c3bdfSopenharmony_ci int *pid2; 39f08c3bdfSopenharmony_ci int type; 40f08c3bdfSopenharmony_ci int *fd1; 41f08c3bdfSopenharmony_ci int *fd2; 42f08c3bdfSopenharmony_ci int exp_errno; 43f08c3bdfSopenharmony_ci} test_cases[] = { 44f08c3bdfSopenharmony_ci {&pid1, &pid_unused, KCMP_FILE, &fd1, &fd2, ESRCH}, 45f08c3bdfSopenharmony_ci {&pid1, &pid1, KCMP_TYPES + 1, &fd1, &fd2, EINVAL}, 46f08c3bdfSopenharmony_ci {&pid1, &pid1, -1, &fd1, &fd2, EINVAL}, 47f08c3bdfSopenharmony_ci {&pid1, &pid1, INT_MIN, &fd1, &fd2, EINVAL}, 48f08c3bdfSopenharmony_ci {&pid1, &pid1, INT_MAX, &fd1, &fd2, EINVAL}, 49f08c3bdfSopenharmony_ci {&pid1, &pid1, KCMP_FILE, &fd1, &fd_fake, EBADF} 50f08c3bdfSopenharmony_ci}; 51f08c3bdfSopenharmony_ci 52f08c3bdfSopenharmony_cistatic void setup(void) 53f08c3bdfSopenharmony_ci{ 54f08c3bdfSopenharmony_ci pid1 = getpid(); 55f08c3bdfSopenharmony_ci pid_unused = tst_get_unused_pid(); 56f08c3bdfSopenharmony_ci 57f08c3bdfSopenharmony_ci fd1 = SAFE_OPEN(TEST_FILE, O_CREAT | O_RDWR | O_TRUNC, 0644); 58f08c3bdfSopenharmony_ci fd2 = SAFE_OPEN(TEST_FILE2, O_CREAT | O_RDWR | O_TRUNC, 0644); 59f08c3bdfSopenharmony_ci} 60f08c3bdfSopenharmony_ci 61f08c3bdfSopenharmony_cistatic void cleanup(void) 62f08c3bdfSopenharmony_ci{ 63f08c3bdfSopenharmony_ci if (fd1 > 0) 64f08c3bdfSopenharmony_ci SAFE_CLOSE(fd1); 65f08c3bdfSopenharmony_ci 66f08c3bdfSopenharmony_ci if (fd2 > 0) 67f08c3bdfSopenharmony_ci SAFE_CLOSE(fd2); 68f08c3bdfSopenharmony_ci} 69f08c3bdfSopenharmony_ci 70f08c3bdfSopenharmony_cistatic void verify_kcmp(unsigned int n) 71f08c3bdfSopenharmony_ci{ 72f08c3bdfSopenharmony_ci struct test_case *test = &test_cases[n]; 73f08c3bdfSopenharmony_ci 74f08c3bdfSopenharmony_ci TEST(kcmp(*(test->pid1), *(test->pid2), test->type, 75f08c3bdfSopenharmony_ci *(test->fd1), *(test->fd2))); 76f08c3bdfSopenharmony_ci 77f08c3bdfSopenharmony_ci if (TST_RET != -1) { 78f08c3bdfSopenharmony_ci tst_res(TFAIL, "kcmp() succeeded unexpectedly"); 79f08c3bdfSopenharmony_ci return; 80f08c3bdfSopenharmony_ci } 81f08c3bdfSopenharmony_ci 82f08c3bdfSopenharmony_ci if (test->exp_errno == TST_ERR) { 83f08c3bdfSopenharmony_ci tst_res(TPASS | TTERRNO, "kcmp() returned the expected value"); 84f08c3bdfSopenharmony_ci return; 85f08c3bdfSopenharmony_ci } 86f08c3bdfSopenharmony_ci 87f08c3bdfSopenharmony_ci tst_res(TFAIL | TTERRNO, 88f08c3bdfSopenharmony_ci "kcmp() got unexpected return value: expected: %d - %s", 89f08c3bdfSopenharmony_ci test->exp_errno, tst_strerrno(test->exp_errno)); 90f08c3bdfSopenharmony_ci} 91f08c3bdfSopenharmony_ci 92f08c3bdfSopenharmony_cistatic struct tst_test test = { 93f08c3bdfSopenharmony_ci .tcnt = ARRAY_SIZE(test_cases), 94f08c3bdfSopenharmony_ci .setup = setup, 95f08c3bdfSopenharmony_ci .cleanup = cleanup, 96f08c3bdfSopenharmony_ci .test = verify_kcmp, 97f08c3bdfSopenharmony_ci .needs_tmpdir = 1 98f08c3bdfSopenharmony_ci}; 99