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 BIO_MMSG_CB_ARGS *args;
28 long ret_ = ret;
29
30 if (processed != NULL)
31 l = *processed;
32
33 left = BIO_snprintf(buf, sizeof(buf), "BIO[%p]: ", (void *)bio);
34
35 /* Ignore errors and continue printing the other information. */
36 if (left < 0)
37 left = 0;
38 p = buf + left;
39 left = sizeof(buf) - left;
40
41 switch (cmd) {
42 case BIO_CB_FREE:
43 BIO_snprintf(p, left, "Free - %s\n", bio->method->name);
44 break;
45 case BIO_CB_READ:
46 if (bio->method->type & BIO_TYPE_DESCRIPTOR)
47 BIO_snprintf(p, left, "read(%d,%zu) - %s fd=%d\n",
48 bio->num, len,
49 bio->method->name, bio->num);
50 else
51 BIO_snprintf(p, left, "read(%d,%zu) - %s\n",
52 bio->num, len, bio->method->name);
53 break;
54 case BIO_CB_WRITE:
55 if (bio->method->type & BIO_TYPE_DESCRIPTOR)
56 BIO_snprintf(p, left, "write(%d,%zu) - %s fd=%d\n",
57 bio->num, len,
58 bio->method->name, bio->num);
59 else
60 BIO_snprintf(p, left, "write(%d,%zu) - %s\n",
61 bio->num, len, bio->method->name);
62 break;
63 case BIO_CB_PUTS:
64 BIO_snprintf(p, left, "puts() - %s\n", bio->method->name);
65 break;
66 case BIO_CB_GETS:
67 BIO_snprintf(p, left, "gets(%zu) - %s\n", len,
68 bio->method->name);
69 break;
70 case BIO_CB_CTRL:
71 BIO_snprintf(p, left, "ctrl(%d) - %s\n", argi,
72 bio->method->name);
73 break;
74 case BIO_CB_RECVMMSG:
75 args = (BIO_MMSG_CB_ARGS *)argp;
76 BIO_snprintf(p, left, "recvmmsg(%zu) - %s",
77 args->num_msg, bio->method->name);
78 break;
79 case BIO_CB_SENDMMSG:
80 args = (BIO_MMSG_CB_ARGS *)argp;
81 BIO_snprintf(p, left, "sendmmsg(%zu) - %s",
82 args->num_msg, bio->method->name);
83 break;
84 case BIO_CB_RETURN | BIO_CB_READ:
85 BIO_snprintf(p, left, "read return %d processed: %zu\n", ret, l);
86 break;
87 case BIO_CB_RETURN | BIO_CB_WRITE:
88 BIO_snprintf(p, left, "write return %d processed: %zu\n", ret, l);
89 break;
90 case BIO_CB_RETURN | BIO_CB_GETS:
91 BIO_snprintf(p, left, "gets return %d processed: %zu\n", ret, l);
92 break;
93 case BIO_CB_RETURN | BIO_CB_PUTS:
94 BIO_snprintf(p, left, "puts return %d processed: %zu\n", ret, l);
95 break;
96 case BIO_CB_RETURN | BIO_CB_CTRL:
97 BIO_snprintf(p, left, "ctrl return %d\n", ret);
98 break;
99 case BIO_CB_RETURN | BIO_CB_RECVMMSG:
100 BIO_snprintf(p, left, "recvmmsg processed: %zu\n", len);
101 ret_ = (long)len;
102 break;
103 case BIO_CB_RETURN | BIO_CB_SENDMMSG:
104 BIO_snprintf(p, left, "sendmmsg processed: %zu\n", len);
105 ret_ = (long)len;
106 break;
107 default:
108 BIO_snprintf(p, left, "bio callback - unknown type (%d)\n", cmd);
109 break;
110 }
111
112 b = (BIO *)bio->cb_arg;
113 if (b != NULL)
114 BIO_write(b, buf, strlen(buf));
115 #if !defined(OPENSSL_NO_STDIO)
116 else
117 fputs(buf, stderr);
118 #endif
119 return ret_;
120 }
121
122 #ifndef OPENSSL_NO_DEPRECATED_3_0
BIO_debug_callback(BIO * bio,int cmd,const char * argp,int argi,long argl,long ret)123 long BIO_debug_callback(BIO *bio, int cmd, const char *argp,
124 int argi, long argl, long ret)
125 {
126 size_t processed = 0;
127
128 if (ret > 0)
129 processed = (size_t)ret;
130 BIO_debug_callback_ex(bio, cmd, argp, (size_t)argi,
131 argi, argl, ret > 0 ? 1 : (int)ret, &processed);
132 return ret;
133 }
134 #endif
135
