struct json *json_object_from_file(const char *filename)
{
struct json *obj;
int fd;
if ((fd = open(filename, O_RDONLY)) < 0) {
elog("json_object_from_file: error opening file %s: %s\n",
filename, strerror(errno));
return NULL;
}
obj = json_object_from_fd(fd);
close(fd);
return obj;
}
static void test_read_closed()
{
// Test reading from a closed fd
int d = open("/dev/null", O_RDONLY, 0);
close(d);
json_object *jso = json_object_from_fd(d);
if (jso != NULL)
{
printf("FAIL: read from closed fd returning non-NULL: %p\n", jso);
fflush(stdout);
printf(" jso=%s\n", json_object_to_json_string(jso));
json_object_put(jso);
return;
}
printf("OK: json_object_from_fd(closed_fd), expecting NULL, EBADF, got:%p, %s\n", jso, json_util_get_last_err());
}
static void test_read_valid_with_fd(const char *testdir)
{
const char *filename = "./valid.json";
int d = open(filename, O_RDONLY, 0);
if (d < 0)
{
fprintf(stderr, "FAIL: unable to open %s: %s\n", filename, strerror(errno));
exit(1);
}
json_object *jso = json_object_from_fd(d);
if (jso != NULL)
{
printf("OK: json_object_from_fd(%s)=%s\n", filename, json_object_to_json_string(jso));
json_object_put(jso);
}
else
{
fprintf(stderr, "FAIL: unable to parse contents of %s: %s\n", filename, json_util_get_last_err());
}
close(d);
}