1 /*
2  * Copyright (C) 2017 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  *
16  */
17 
18 #include <ctype.h>
19 #include <stdint.h>
20 #include <stdio.h>
21 #include <stdlib.h>
22 #include <string.h>
23 #include <unistd.h>
24 
25 #include "payload.h"
26 
27 bool payload_init(struct Payload *p, uint32_t tx_len, uint32_t exp_len) {
28   if (!p)
29     return false;
30   if (!buffer_init(&p->tx, tx_len))
31     return false;
32   if (buffer_init(&p->expected, exp_len))
33     return true;
34   buffer_free(&p->tx);
35   return false;
36 }
37 
38 void payload_free(struct Payload *p) {
39   if (p) {
40     buffer_free(&p->tx);
41     buffer_free(&p->expected);
42   }
43 }
44 
45 bool payload_read(struct Payload *p, FILE *fp) {
46   if (!p)
47     return false;
48   p->tx.len = 0;
49   p->expected.len = 0;
50   while (buffer_read_hex(&p->tx, fp, true) && p->tx.len == 0)
51     ;
52   if (p->tx.len == 0)
53     return false;
54   if (!buffer_read_hex(&p->expected, fp, false)) {
55     p->expected.buffer[0] = 0x90;
56     p->expected.buffer[1] = 0x00;
57     p->expected.len = 2;
58   }
59   return true;
60 }
61 
62 void payload_dump(const struct Payload *payload, FILE *fp) {
63   fprintf(fp, "Payload {\n");
64   buffer_dump(&payload->tx, "  ", "Transmit", 240, fp);
65   buffer_dump(&payload->expected, "  ", "Expected", 240, fp);
66   fprintf(fp, "}\n");
67 }
68