Function pv_get_branch_fields

pvar.c:2092–2158

static int pv_get_branch_fields(struct sip_msg *msg, pv_param_t *param,
		pv_value_t *res)
{
	int size;
	int idx;
	int idxf;
	char *p;

	if(msg==NULL || res==NULL)
		return -1;

	if ( (size=get_dset_size()) == 0)
		return pv_get_null(msg, param, res);

	/* get the index */
	if(pv_get_spec_index(msg, param, &idx, &idxf)!=0) {
		LM_ERR("invalid index\n");
		return -1;
	}

	if (idxf!=PV_IDX_ALL && idx==0) {
		/* no index specified -> return the first branch */
		return get_branch_field( 0, param->pvn.u.isname.name.n, res);
	}

	if(idxf==PV_IDX_ALL) {
		/* return all branches */
		p = pv_local_buf;
		idx = 0;

		while ( idx<size ) {

			get_branch_field( idx, param->pvn.u.isname.name.n, res);

			if ( pv_local_buf + PV_LOCAL_BUF_SIZE <=
			p + res->rs.len + PV_FIELD_DELIM_LEN ) {
				LM_ERR("local buffer length exceeded\n");
				return pv_get_null(msg, param, res);
			}

			if (idx) {
				memcpy(p, PV_FIELD_DELIM, PV_FIELD_DELIM_LEN);
				p += PV_FIELD_DELIM_LEN;
			}

			memcpy(p, res->rs.s, res->rs.len);
			p += res->rs.len;
			idx++;
		}

		res->rs.s = pv_local_buf;
		res->rs.len = p - pv_local_buf;
		res->flags = PV_VAL_STR;
		return 0;
	}

	/* numerical index */
	if (idx<0) {