int
main ()
{
/* Don't change the order of the calls. They partly depend on each other */
test_open ();
test_write ();
test_read ();
test_lseek ();
test_close ();
test_stat ();
test_fstat ();
test_isatty ();
test_system ();
test_rename ();
test_unlink ();
test_time ();
return 0;
}
int
main(int argc, char * argv[])
{
(void) argc;
(void) argv;
printf("\n**************************\n");
printf("Errno Handling Test\n");
printf("***************************\n");
test_open();
test_close();
test_write();
test_read();
test_lseek();
test_dup2();
return 0;
}
int
main(int argc, char *argv[])
{
strcpy(temp_dir, "/tmp/fifo_misc.XXXXXXXXXXX");
if (mkdtemp(temp_dir) == NULL)
err(-1, "mkdtemp");
atexit(atexit_temp_dir);
if (chdir(temp_dir) < 0)
err(-1, "chdir %s", temp_dir);
test_lseek();
test_truncate();
test_ioctl();
return (0);
}
static void
vfstest_read(void)
{
#define READ_BUFSIZE 256
int fd, ret;
char buf[READ_BUFSIZE];
struct stat s;
syscall_success(mkdir("read", 0777));
syscall_success(chdir("read"));
/* Can read and write to a file */
syscall_success(fd = open("file01", O_RDWR | O_CREAT, 0));
syscall_success(ret = write(fd, "hello", 5));
test_assert(5 == ret, "write(%d, \"hello\", 5) returned %d", fd, ret);
syscall_success(ret = lseek(fd, 0, SEEK_SET));
test_assert(0 == ret, "lseek(%d, 0, SEEK_SET) returned %d", fd, ret);
read_fd(fd, READ_BUFSIZE, "hello");
syscall_success(close(fd));
/* cannot read from a directory */
syscall_success(mkdir("dir01", 0));
syscall_success(fd = open("dir01", O_RDONLY, 0));
syscall_fail(read(fd, buf, READ_BUFSIZE), EISDIR);
syscall_success(close(fd));
/* Can seek to beginning, middle, and end of file */
syscall_success(fd = open("file02", O_RDWR | O_CREAT, 0));
syscall_success(write(fd, "hello", 5));
#define test_lseek(expr, res) \
do { \
int __r = (expr); \
test_assert((res) == __r, # expr " returned %d, expected %d", __r, res);\
} while (0);
test_lseek(lseek(fd, 0, SEEK_CUR), 5);
read_fd(fd, 10, "");
test_lseek(lseek(fd, -1, SEEK_CUR), 4);
read_fd(fd, 10, "o");
test_lseek(lseek(fd, 2, SEEK_CUR), 7);
read_fd(fd, 10, "");
syscall_fail(lseek(fd, -8, SEEK_CUR), EINVAL);
test_lseek(lseek(fd, 0, SEEK_SET), 0);
read_fd(fd, 10, "hello");
test_lseek(lseek(fd, 3, SEEK_SET), 3);
read_fd(fd, 10, "lo");
test_lseek(lseek(fd, 7, SEEK_SET), 7);
read_fd(fd, 10, "");
syscall_fail(lseek(fd, -1, SEEK_SET), EINVAL);
test_lseek(lseek(fd, 0, SEEK_END), 5);
read_fd(fd, 10, "");
test_lseek(lseek(fd, -2, SEEK_END), 3);
read_fd(fd, 10, "lo");
test_lseek(lseek(fd, 3, SEEK_END), 8);
read_fd(fd, 10, "");
syscall_fail(lseek(fd, -8, SEEK_END), EINVAL);
syscall_fail(lseek(fd, 0, SEEK_SET + SEEK_CUR + SEEK_END), EINVAL);
syscall_success(close(fd));
/* O_APPEND works properly */
create_file("file03");
syscall_success(fd = open("file03", O_RDWR, 0));
test_fpos(fd, 0);
syscall_success(write(fd, "hello", 5));
test_fpos(fd, 5);
syscall_success(close(fd));
syscall_success(fd = open("file03", O_RDWR | O_APPEND, 0));
test_fpos(fd, 0);
syscall_success(write(fd, "hello", 5));
test_fpos(fd, 10);
syscall_success(lseek(fd, 0, SEEK_SET));
test_fpos(fd, 0);
read_fd(fd, 10, "hellohello");
syscall_success(lseek(fd, 5, SEEK_SET));
test_fpos(fd, 5);
syscall_success(write(fd, "again", 5));
test_fpos(fd, 15);
syscall_success(lseek(fd, 0, SEEK_SET));
test_fpos(fd, 0);
read_fd(fd, 15, "hellohelloagain");
syscall_success(close(fd));
/* seek and write beyond end of file */
create_file("file04");
syscall_success(fd = open("file04", O_RDWR, 0));
syscall_success(write(fd, "hello", 5));
test_fpos(fd, 5);
test_lseek(lseek(fd, 10, SEEK_SET), 10);
syscall_success(write(fd, "again", 5));
syscall_success(stat("file04", &s));
test_assert(s.st_size == 15, "actual size: %d", s.st_size);
test_lseek(lseek(fd, 0, SEEK_SET), 0);
test_assert(15 == read(fd, buf, READ_BUFSIZE), "unexpected number of bytes read");
test_assert(0 == memcmp(buf, "hello\0\0\0\0\0again", 15), "unexpected data read");
syscall_success(close(fd));
syscall_success(chdir(".."));
}
