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func.go
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func.go
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/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*
* Copyright (C) Joakim Kennedy, 2019
*/
package r2g2
import (
"encoding/json"
"fmt"
)
const (
getFunctionDetailCMD = "pdfj"
getFunctionAtOffsetCMD = "pdfj @ %d"
)
// Function holds information about a radare function.
type Function struct {
Name string `json:"name"`
Size uint64 `json:"size"`
Addr uint64 `json:"addr"`
Ops []*Op `json:"ops"`
}
// Op holds information about an operation.
type Op struct {
Offset uint64 `json:"offset"`
Ptr uint64 `json:"ptr"`
ESIL string `json:"esil"`
RefPtr bool `json:"refptr"`
FcnAddr uint64 `json:"fcn_addr"`
FcnLast uint64 `json:"fcn_last"`
Size uint64 `json:"size"`
OpCode string `json:"opcode"`
Disasm string `json:"disasm"`
Bytes string `json:"bytes"`
Family string `json:"family"`
Type string `json:"type"`
TypeNum uint64 `json:"type_num"`
Type2Num uint64 `json:"type2_num"`
Flags []string `json:"flags"`
Jump uint64 `json:"jump"`
Fail uint64 `json:"fail"`
XRefs []*XRef `json:"xrefs"`
}
// XRef holds information about a cross-reference.
type XRef struct {
Addr uint64 `json:"addr"`
Type string `jsoin:"type"`
}
// GetCurrentFunction returns information about the current function.
func (c *Client) GetCurrentFunction() (*Function, error) {
data, err := c.Run(getFunctionDetailCMD)
if err != nil {
return nil, err
}
return parseFunctionResp(data)
}
// GetFunctionAtOffset returns function information about a function
// located at the given offset.
func (c *Client) GetFunctionAtOffset(offset uint64) (*Function, error) {
data, err := c.Run(fmt.Sprintf(getFunctionAtOffsetCMD, offset))
if err != nil {
return nil, err
}
return parseFunctionResp(data)
}
func parseFunctionResp(data []byte) (*Function, error) {
var function Function
err := json.Unmarshal(data, &function)
return &function, err
}