static int
open_rdwr(const char * const path,
tpath_entry *pe,
int flags)
{
return open_wronly(path, pe, flags);
}
int main(int argc, char **argv)
{
populate_device(argc, argv);
reset_marks(TOTAL_MARKS);
/* 1 mark: open. Device must be able to be opened for reading, writing and
* reading/writing to get this mark.
*/
int fd = open_rdrw();
if (fd < 0) {
try_close(fd, false);
goto end;
}
fd = open_rdonly();
if (fd < 0) {
try_close(fd, false);
goto end;
}
fd = open_wronly();
if (fd < 0) {
try_close(fd, false);
goto end;
}
/* fork another process and try the opens again */
char *arg0 = "./test_1a_open_close";
printv("Now forking to run %s\n", arg0);
int pid = fork();
if (pid == 0) {
/* get rid of stdout */
int null_fd = open("/dev/null", O_WRONLY);
if (null_fd < 0) {
printe("open(\"/dev/null\")");
_exit(ERR_EXEC);
}
if (dup2(null_fd, STDOUT_FILENO) < 0) {
printe("dup2()");
_exit(ERR_EXEC);
}
/* execute the single open/close test */
execl(arg0, arg0, device_node, NULL);
printe("execl()");
_exit(ERR_EXEC);
} else {
int status;
wait(&status);
if (WIFEXITED(status)) {
int ret = WEXITSTATUS(status);
if (ret == 0) {
printv("Child returned success\n");
update_marks(1);
} else {
printv("Child returned non-zero status (%d)\n", ret);
}
}
try_close(fd, true);
goto end;
}
end:
return end_marks();
}