static
int
report_checkN(int rv, int error, int *right_errors, int right_num)
{
int i, goterror;
int result = 1;
if (rv==-1) {
goterror = error;
}
else {
goterror = 0;
}
for (i=0; i<right_num; i++) {
if (goterror == right_errors[i]) {
report_result(rv, error);
report_passed(&result);
return result;
}
}
if (goterror == ENOSYS) {
report_saw_enosys();
say("(unimplemented) ");
report_skipped(&result);
}
else {
report_result(rv, error);
report_failure(&result);
}
return result;
}
/*
* Note: unlike everything else this calls skipped/aborted, because
* otherwise it has to communicate to the caller which to call and
* that's a pain.
*/
int
create_testdir(void)
{
int rv;
rv = mkdir(TESTDIR, 0775);
if (rv<0) {
if (errno == ENOSYS) {
report_saw_enosys();
report_warnx("mkdir unimplemented; cannot run test");
report_skipped();
}
else {
report_warn("mkdir %s failed", TESTDIR);
report_aborted();
}
return -1;
}
return 0;
}
static
int
lseek_file_stdin(void)
{
int fd, fd2, rv, status;
const char slogan[] = "There ain't no such thing as a free lunch";
size_t len = strlen(slogan);
pid_t pid;
int result = 0;
report_begin("lseek stdin when open on file");
/* fork so we don't affect our own stdin */
pid = fork();
if (pid<0) {
report_warn("fork failed");
report_aborted(&result);
return result;
}
else if (pid!=0) {
/* parent */
rv = waitpid(pid, &status, 0);
if (rv<0) {
report_warn("waitpid failed");
report_aborted(&result);
}
if (WIFSIGNALED(status)) {
report_warnx("subprocess exited with signal %d",
WTERMSIG(status));
report_aborted(&result);
}
else if (WIFEXITED(status) && WEXITSTATUS(status) != 0) {
report_warnx("subprocess exited with code %d",
WEXITSTATUS(status));
report_aborted(&result);
}
return result;
}
/* child */
fd = open_testfile(NULL);
if (fd<0) {
_exit(0);
}
/*
* Move file to stdin.
* Use stdin (rather than stdout or stderr) to maximize the
* chances of detecting any special-case handling of fds 0-2.
* (Writing to stdin is fine as long as it's open for write,
* and it will be.)
*/
fd2 = dup2(fd, STDIN_FILENO);
if (fd2<0) {
report_warn("dup2 to stdin failed");
close(fd);
remove(TESTFILE);
_exit(1);
}
if (fd2 != STDIN_FILENO) {
report_warn("dup2 returned wrong file handle");
close(fd);
remove(TESTFILE);
_exit(1);
}
close(fd);
rv = write(STDIN_FILENO, slogan, len);
if (rv<0) {
report_warn("write to %s (via stdin) failed", TESTFILE);
remove(TESTFILE);
_exit(1);
}
if ((unsigned)rv != len) {
report_warnx("write to %s (via stdin) got short count",
TESTFILE);
remove(TESTFILE);
_exit(1);
}
/* blah */
report_skipped(&result);
rv = lseek(STDIN_FILENO, 0, SEEK_SET);
report_begin("try 1: SEEK_SET");
result = report_check(rv, errno, 0);
rv = lseek(STDIN_FILENO, 0, SEEK_END);
report_begin("try 2: SEEK_END");
result = report_check(rv, errno, 0);
remove(TESTFILE);
_exit(0);
}