Function tr_eval_string

transformations.c:259–1112

}

int tr_eval_string(struct sip_msg *msg, tr_param_t *tp, int subtype,
		pv_value_t *val)
{
	int i, j;
	char *p, *s, *_tr_buffer = get_tr_buffer();
	str st;
	pv_value_t v;
	pv_elem_p el=NULL;

	if (!val)
		return -1;

	if (val->flags & PV_VAL_NULL)
		return 0;

	switch(subtype)
	{
		case TR_S_LEN:
			if(!(val->flags&PV_VAL_STR))
				val->rs.s = int2str(val->ri, &val->rs.len);

			val->flags = PV_TYPE_INT|PV_VAL_INT|PV_VAL_STR;
			val->ri = val->rs.len;
			val->rs.s = int2str(val->ri, &val->rs.len);
			break;
		case TR_S_INT:
			if(!(val->flags&PV_VAL_INT))
			{
				//Default conversion to 0
				val->ri = 0;
				/*Ignore the return value of str2sint.
				  str2sint will convert the string up until it finds a non-number char
				  which is the desired behavior for the script level transformation*/
				str2sint(&val->rs, &val->ri);
			} else {
				if(!(val->flags&PV_VAL_STR))
					val->rs.s = int2str(val->ri, &val->rs.len);
			}

			val->flags = PV_TYPE_INT|PV_VAL_INT|PV_VAL_STR;
			break;
		case TR_S_MD5:
			if(!(val->flags&PV_VAL_STR))
				val->rs.s = int2str(val->ri, &val->rs.len);

			compute_md5(_tr_buffer, val->rs.s, val->rs.len);
			_tr_buffer[MD5_LEN] = '\0';
			val->flags = PV_VAL_STR;
			val->ri = 0;
			val->rs.s = _tr_buffer;
			val->rs.len = MD5_LEN;
			break;
		case TR_S_SHA1:
		case TR_S_SHA1_HMAC:
		case TR_S_SHA224:
		case TR_S_SHA224_HMAC:
		case TR_S_SHA256:
		case TR_S_SHA256_HMAC: