100 lines
2.0 KiB
C
100 lines
2.0 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2015 Cedric Hnyda <chnyda@suse.com>
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*/
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/* Description:
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* Verify that:
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* 1) kcmp fails with bad pid
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* 2) kcmp fails with invalid flag
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* 3) kcmp fails with invalid flag
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* 4) kcmp fails with invalid flag
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* 5) kcmp fails with invalid flag
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* 6) kcmp fails with invalid fd
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*/
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#define _GNU_SOURCE
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#include "tst_test.h"
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#include "lapi/fcntl.h"
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#include "kcmp.h"
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#define TEST_FILE "test_file"
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#define TEST_FILE2 "test_file2"
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static int fd1;
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static int fd2;
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static int fd_fake;
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static int pid1;
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static int pid_unused;
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static int fd_fake = -1;
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <limits.h>
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static struct test_case {
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int *pid1;
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int *pid2;
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int type;
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int *fd1;
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int *fd2;
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int exp_errno;
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} test_cases[] = {
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{&pid1, &pid_unused, KCMP_FILE, &fd1, &fd2, ESRCH},
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{&pid1, &pid1, KCMP_TYPES + 1, &fd1, &fd2, EINVAL},
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{&pid1, &pid1, -1, &fd1, &fd2, EINVAL},
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{&pid1, &pid1, INT_MIN, &fd1, &fd2, EINVAL},
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{&pid1, &pid1, INT_MAX, &fd1, &fd2, EINVAL},
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{&pid1, &pid1, KCMP_FILE, &fd1, &fd_fake, EBADF}
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};
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static void setup(void)
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{
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pid1 = getpid();
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pid_unused = tst_get_unused_pid();
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fd1 = SAFE_OPEN(TEST_FILE, O_CREAT | O_RDWR | O_TRUNC, 0644);
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fd2 = SAFE_OPEN(TEST_FILE2, O_CREAT | O_RDWR | O_TRUNC, 0644);
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}
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static void cleanup(void)
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{
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if (fd1 > 0)
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SAFE_CLOSE(fd1);
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if (fd2 > 0)
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SAFE_CLOSE(fd2);
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}
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static void verify_kcmp(unsigned int n)
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{
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struct test_case *test = &test_cases[n];
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TEST(kcmp(*(test->pid1), *(test->pid2), test->type,
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*(test->fd1), *(test->fd2)));
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if (TST_RET != -1) {
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tst_res(TFAIL, "kcmp() succeeded unexpectedly");
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return;
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}
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if (test->exp_errno == TST_ERR) {
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tst_res(TPASS | TTERRNO, "kcmp() returned the expected value");
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return;
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}
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tst_res(TFAIL | TTERRNO,
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"kcmp() got unexpected return value: expected: %d - %s",
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test->exp_errno, tst_strerrno(test->exp_errno));
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}
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static struct tst_test test = {
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.tcnt = ARRAY_SIZE(test_cases),
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.setup = setup,
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.cleanup = cleanup,
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.test = verify_kcmp,
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.min_kver = "3.5.0",
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.needs_tmpdir = 1
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};
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