struct unitaryc* parse_unitary_conf_file(const char *fname,
char *err, size_t err_len)
{
char err2[512] = { 0 };
size_t err2_len = sizeof(err2);
struct unitaryc *conf;
struct json_object* jo;
jo = parse_json_file(fname, err2, err2_len);
if (err2[0]) {
snprintf(err, err_len, "error parsing json file %s: %s",
fname, err2);
return NULL;
}
conf = JORM_FROMJSON_unitaryc(jo);
json_object_put(jo);
if (!conf) {
snprintf(err, err_len, "ran out of memory reading "
"config file.\n");
return NULL;
}
if (conf->osd == JORM_INVAL_ARRAY) {
snprintf(err, err_len, "No OSDs found!");
goto error;
}
if (conf->mds == JORM_INVAL_ARRAY) {
snprintf(err, err_len, "No MDSes found!");
goto error;
}
return conf;
error:
JORM_FREE_unitaryc(conf);
return NULL;
}
int parse_json_file(FILE *fptr, JSON_T *json_obj)
{
int ret;
char *key;
char first_meet;
char *tmpstr;
long long tmpnum;
double floatnum, decimal;
JSON_T *value;
if (!json_obj)
return -ENOMEM;
key = NULL;
tmpstr = NULL;
value = NULL;
memset(json_obj, 0, sizeof(JSON_T));
json_obj->type = JSON;
json_obj->keys = NULL;
_PARSE_SYMBOL(fptr, "{", NULL);
while (!feof(fptr)) {
_PARSE_SYMBOL(fptr, "\"}", &first_meet);
if (first_meet == '}')
break;
ret = _parse_string(fptr, &key);
if (ret < 0)
goto error_handle;
//printf("string = %s : ", key);
_PARSE_SYMBOL(fptr, ":", NULL);
_PARSE_SYMBOL(fptr, "\"{-0123456789.", &first_meet);
value = malloc(sizeof(JSON_T));
if (!value) {
ret = -ENOMEM;
goto error_handle;
}
memset(value, 0, sizeof(JSON_T));
switch (first_meet) {
case '\"':
ret = _parse_string(fptr, &tmpstr);
if (ret < 0)
goto error_handle;
value->type = STRING;
value->str = tmpstr;
//printf("value = %s\n", tmpstr);
break;
case '{':
fseek(fptr, -1, SEEK_CUR);
ret = parse_json_file(fptr, value);
if (ret < 0)
goto error_handle;
break;
case '-':
ret = _parse_integer(fptr, &tmpnum);
if (ret < 0) {
goto error_handle;
} else if (ret == 1) {
ret = _parse_decimal(fptr, &decimal);
if (ret < 0)
goto error_handle;
floatnum = tmpnum + decimal;
value->type = FLOAT;
value->floating = -floatnum;
} else {
value->type = INTEGER;
value->integer = -tmpnum;
}
//printf("value = %lld\n", -tmpnum);
break;
default:
fseek(fptr, -1, SEEK_CUR);
ret = _parse_integer(fptr, &tmpnum);
if (ret < 0) {
goto error_handle;
} else if (ret == 1) {
ret = _parse_decimal(fptr, &decimal);
if (ret < 0)
goto error_handle;
floatnum = tmpnum + decimal;
value->type = FLOAT;
value->floating = floatnum;
} else {
value->type = INTEGER;
value->integer = tmpnum;
}
//printf("value = %lld\n", tmpnum);
break;
}
/* Insert */
ret = insert_json_obj(json_obj, key, value);
if (ret < 0)
goto error_handle;
key = NULL;
tmpstr = NULL;
value = NULL;
_PARSE_SYMBOL(fptr, "},", &first_meet);
if (first_meet == '}')
break;
}
return 0;
error_handle:
/* Do not free self because it perhaps results in
double free error when recursing */
free_json_obj_field(json_obj);
if (key)
free(key);
if (tmpstr)
free(tmpstr);
if (value)
free(value);
return ret;
}
