1 /*
2 * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10 #define OPENSSL_SUPPRESS_DEPRECATED
11
12 #include <stdio.h>
13 #include <string.h>
14 #include <stdlib.h>
15 #include "bio_local.h"
16 #include "internal/cryptlib.h"
17 #include <openssl/err.h>
18
BIO_debug_callback_ex(BIO * bio,int cmd,const char * argp,size_t len,int argi,long argl,int ret,size_t * processed)19 long BIO_debug_callback_ex(BIO *bio, int cmd, const char *argp, size_t len,
20 int argi, long argl, int ret, size_t *processed)
21 {
22 BIO *b;
23 char buf[256];
24 char *p;
25 int left;
26 size_t l = 0;
27
28 if (processed != NULL)
29 l = *processed;
30
31 left = BIO_snprintf(buf, sizeof(buf), "BIO[%p]: ", (void *)bio);
32
33 /* Ignore errors and continue printing the other information. */
34 if (left < 0)
35 left = 0;
36 p = buf + left;
37 left = sizeof(buf) - left;
38
39 switch (cmd) {
40 case BIO_CB_FREE:
41 BIO_snprintf(p, left, "Free - %s\n", bio->method->name);
42 break;
43 case BIO_CB_READ:
44 if (bio->method->type & BIO_TYPE_DESCRIPTOR)
45 BIO_snprintf(p, left, "read(%d,%zu) - %s fd=%d\n",
46 bio->num, len,
47 bio->method->name, bio->num);
48 else
49 BIO_snprintf(p, left, "read(%d,%zu) - %s\n",
50 bio->num, len, bio->method->name);
51 break;
52 case BIO_CB_WRITE:
53 if (bio->method->type & BIO_TYPE_DESCRIPTOR)
54 BIO_snprintf(p, left, "write(%d,%zu) - %s fd=%d\n",
55 bio->num, len,
56 bio->method->name, bio->num);
57 else
58 BIO_snprintf(p, left, "write(%d,%zu) - %s\n",
59 bio->num, len, bio->method->name);
60 break;
61 case BIO_CB_PUTS:
62 BIO_snprintf(p, left, "puts() - %s\n", bio->method->name);
63 break;
64 case BIO_CB_GETS:
65 BIO_snprintf(p, left, "gets(%zu) - %s\n", len,
66 bio->method->name);
67 break;
68 case BIO_CB_CTRL:
69 BIO_snprintf(p, left, "ctrl(%d) - %s\n", argi,
70 bio->method->name);
71 break;
72 case BIO_CB_RETURN | BIO_CB_READ:
73 BIO_snprintf(p, left, "read return %d processed: %zu\n", ret, l);
74 break;
75 case BIO_CB_RETURN | BIO_CB_WRITE:
76 BIO_snprintf(p, left, "write return %d processed: %zu\n", ret, l);
77 break;
78 case BIO_CB_RETURN | BIO_CB_GETS:
79 BIO_snprintf(p, left, "gets return %d processed: %zu\n", ret, l);
80 break;
81 case BIO_CB_RETURN | BIO_CB_PUTS:
82 BIO_snprintf(p, left, "puts return %d processed: %zu\n", ret, l);
83 break;
84 case BIO_CB_RETURN | BIO_CB_CTRL:
85 BIO_snprintf(p, left, "ctrl return %d\n", ret);
86 break;
87 default:
88 BIO_snprintf(p, left, "bio callback - unknown type (%d)\n", cmd);
89 break;
90 }
91
92 b = (BIO *)bio->cb_arg;
93 if (b != NULL)
94 BIO_write(b, buf, strlen(buf));
95 #if !defined(OPENSSL_NO_STDIO)
96 else
97 fputs(buf, stderr);
98 #endif
99 return ret;
100 }
101
102 #ifndef OPENSSL_NO_DEPRECATED_3_0
BIO_debug_callback(BIO * bio,int cmd,const char * argp,int argi,long argl,long ret)103 long BIO_debug_callback(BIO *bio, int cmd, const char *argp,
104 int argi, long argl, long ret)
105 {
106 size_t processed = 0;
107
108 if (ret > 0)
109 processed = (size_t)ret;
110 BIO_debug_callback_ex(bio, cmd, argp, (size_t)argi,
111 argi, argl, ret > 0 ? 1 : (int)ret, &processed);
112 return ret;
113 }
114 #endif
115