/*
*
* Copyright (c) International Business Machines Corp., 2001
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
* Test Name: llseek02
* Note that glibc exports the llseek syscall as lseek64.
*
* Test Description:
* Verify that,
* 1. llseek() returns -1 and sets errno to EINVAL, if the 'Whence' argument
* is not a proper value.
* 2. llseek() returns -1 and sets errno to EBADF, if the file handle of
* the specified file is not valid.
*
* Expected Result:
* llseek() should fail with return value -1 and set expected errno.
*
* Algorithm:
* Setup:
* Setup signal handling.
* Create temporary directory.
* Pause for SIGUSR1 if option specified.
*
* Test:
* Loop if the proper options are given.
* Execute system call
* Check return code, if system call failed (return=-1)
* if errno set == expected errno
* Issue sys call fails with expected return value and errno.
* Otherwise,
* Issue sys call fails with unexpected errno.
* Otherwise,
* Issue sys call returns unexpected value.
*
* Cleanup:
* Print errno log and/or timing stats if options given
* Delete the temporary directory(s)/file(s) created.
*
* Usage: <for command-line>
* llseek02 [-c n] [-e] [-i n] [-I x] [-P x] [-t]
* where, -c n : Run n copies concurrently.
* -i n : Execute test n times.
* -I x : Execute test for x seconds.
* -P x : Pause for x seconds between iterations.
* -t : Turn on syscall timing.
*
* HISTORY
* 07/2001 Ported by Wayne Boyer
*
* RESTRICTIONS:
* None.
*/
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <errno.h>
#include <fcntl.h>
#include <utime.h>
#include <string.h>
#include <sys/stat.h>
#include <signal.h>
#include "test.h"
#include "safe_macros.h"
#define TEMP_FILE1 "tmp_file1"
#define TEMP_FILE2 "tmp_file2"
#define FILE_MODE S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH
#define SEEK_TOP 10
char *TCID = "llseek02";
int TST_TOTAL = 2;
int no_setup();
int setup1(); /* setup function to test llseek() for EINVAL */
int setup2(); /* setup function to test llseek() for EBADF */
int fd1; /* file handle for testfile1 */
int fd2; /* file handle for testfile2 */
struct test_case_t { /* test case struct. to hold ref. test cond's */
int fd;
int Whence;
char *desc;
int exp_errno;
int (*setupfunc) ();
} Test_cases[] = {
{
1, SEEK_TOP, "'whence' argument is not valid", EINVAL, setup1}, {
2, SEEK_SET, "'fd' is not an open file descriptor", EBADF, setup2},
{
0, 0, NULL, 0, no_setup}
};
void setup(); /* Main setup function of test */
void cleanup(); /* cleanup function for the test */
int main(int ac, char **av)
{
int lc;
int fildes; /* file handle for testfile */
int whence; /* position of file handle in the file */
char *test_desc; /* test specific error message */
int ind; /* counter to test different test conditions */
tst_parse_opts(ac, av, NULL, NULL);
setup();
for (lc = 0; TEST_LOOPING(lc); lc++) {
tst_count = 0;
for (ind = 0; Test_cases[ind].desc != NULL; ind++) {
fildes = Test_cases[ind].fd;
test_desc = Test_cases[ind].desc;
whence = Test_cases[ind].Whence;
/* Assign the 'fd' values appropriatly */
if (fildes == 1) {
fildes = fd1;
} else {
fildes = fd2;
}
/*
* Invoke llseek(2) to test different test conditions.
* Verify that it fails with -1 return value and
* sets appropriate errno.
*/
TEST(lseek64(fildes, (loff_t) 0, whence));
if (TEST_RETURN != (loff_t) - 1) {
tst_resm(TFAIL,
"llseek() returned %ld, expected"
" -1, errno:%d", TEST_RETURN,
Test_cases[ind].exp_errno);
continue;
}
if (TEST_ERRNO == Test_cases[ind].exp_errno) {
tst_resm(TPASS, "llseek() fails, %s, errno:%d",
test_desc, TEST_ERRNO);
} else {
tst_resm(TFAIL, "llseek() fails, %s, errno:%d, "
"expected errno:%d", test_desc,
TEST_ERRNO, Test_cases[ind].exp_errno);
}
}
}
cleanup();
tst_exit();
}
/*
* setup() - performs all ONE TIME setup for this test.
* Create a temporary directory and change directory to it.
* Invoke individual test setup functions according to the order
* set in test struct. definition.
*/
void setup(void)
{
int ind;
tst_sig(NOFORK, DEF_HANDLER, cleanup);
TEST_PAUSE;
tst_tmpdir();
/* call individual setup functions */
for (ind = 0; Test_cases[ind].desc != NULL; ind++) {
Test_cases[ind].setupfunc();
}
}
/*
* no_setup() - This is a dummy function which simply returns 0.
*/
int no_setup(void)
{
return 0;
}
/*
* setup1() - setup function for a test condition for which llseek(2)
* returns -1 and sets errno to EINVAL.
* Creat a temporary file for reading/writing and write some data
* into it.
* This function returns 0 on success.
*/
int setup1(void)
{
char write_buff[BUFSIZ]; /* buffer to hold data */
/* Get the data to be written to temporary file */
strcpy(write_buff, "abcdefg");
/* Creat/open a temporary file under above directory */
if ((fd1 = open(TEMP_FILE1, O_RDWR | O_CREAT, FILE_MODE)) == -1) {
tst_brkm(TBROK, cleanup,
"open(%s, O_RDWR|O_CREAT, %#o) Failed, errno=%d :%s",
TEMP_FILE1, FILE_MODE, errno, strerror(errno));
}
/* Write data into temporary file */
if (write(fd1, write_buff, sizeof(write_buff)) <= 0) {
tst_brkm(TBROK, cleanup, "write(2) on %s Failed, errno=%d : %s",
TEMP_FILE1, errno, strerror(errno));
}
return 0;
}
/*
* setup2() - setup function for a test condition for which llseek(2)
* returns -1 and sets errno to EBADF.
* Creat a temporary file for reading/writing and close it.
* This function returns 0 on success.
*/
int setup2(void)
{
/* Creat/open a temporary file under above directory */
if ((fd2 = open(TEMP_FILE2, O_RDWR | O_CREAT, FILE_MODE)) == -1) {
tst_brkm(TBROK, cleanup,
"open(%s, O_RDWR|O_CREAT, %#o) Failed, errno=%d :%s",
TEMP_FILE2, FILE_MODE, errno, strerror(errno));
}
/* Close the temporary file created above */
SAFE_CLOSE(cleanup, fd2);
return 0;
}
/*
* cleanup() - performs all ONE TIME cleanup for this test at
* completion or premature exit.
* Close the temporary file.
* Remove the test directory and testfile created in the setup.
*/
void cleanup(void)
{
/* Close the temporary file(s) created in setup1/setup2 */
if (close(fd1) < 0) {
tst_brkm(TFAIL, NULL, "close(%s) Failed, errno=%d : %s:",
TEMP_FILE1, errno, strerror(errno));
}
tst_rmdir();
}