| 1 | /*
|
|---|
| 2 | * Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved.
|
|---|
| 3 | *
|
|---|
| 4 | * Licensed under the OpenSSL license (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 | #include <stdio.h>
|
|---|
| 11 | #include <string.h>
|
|---|
| 12 | #include <stdlib.h>
|
|---|
| 13 | #include "bio_local.h"
|
|---|
| 14 | #include "internal/cryptlib.h"
|
|---|
| 15 | #include <openssl/err.h>
|
|---|
| 16 |
|
|---|
| 17 | long BIO_debug_callback(BIO *bio, int cmd, const char *argp,
|
|---|
| 18 | int argi, long argl, long ret)
|
|---|
| 19 | {
|
|---|
| 20 | BIO *b;
|
|---|
| 21 | char buf[256];
|
|---|
| 22 | char *p;
|
|---|
| 23 | long r = 1;
|
|---|
| 24 | int len, left;
|
|---|
| 25 |
|
|---|
| 26 | if (BIO_CB_RETURN & cmd)
|
|---|
| 27 | r = ret;
|
|---|
| 28 |
|
|---|
| 29 | len = BIO_snprintf(buf, sizeof(buf), "BIO[%p]: ", (void *)bio);
|
|---|
| 30 |
|
|---|
| 31 | /* Ignore errors and continue printing the other information. */
|
|---|
| 32 | if (len < 0)
|
|---|
| 33 | len = 0;
|
|---|
| 34 | p = buf + len;
|
|---|
| 35 | left = sizeof(buf) - len;
|
|---|
| 36 |
|
|---|
| 37 | switch (cmd) {
|
|---|
| 38 | case BIO_CB_FREE:
|
|---|
| 39 | BIO_snprintf(p, left, "Free - %s\n", bio->method->name);
|
|---|
| 40 | break;
|
|---|
| 41 | case BIO_CB_READ:
|
|---|
| 42 | if (bio->method->type & BIO_TYPE_DESCRIPTOR)
|
|---|
| 43 | BIO_snprintf(p, left, "read(%d,%lu) - %s fd=%d\n",
|
|---|
| 44 | bio->num, (unsigned long)argi,
|
|---|
| 45 | bio->method->name, bio->num);
|
|---|
| 46 | else
|
|---|
| 47 | BIO_snprintf(p, left, "read(%d,%lu) - %s\n",
|
|---|
| 48 | bio->num, (unsigned long)argi, bio->method->name);
|
|---|
| 49 | break;
|
|---|
| 50 | case BIO_CB_WRITE:
|
|---|
| 51 | if (bio->method->type & BIO_TYPE_DESCRIPTOR)
|
|---|
| 52 | BIO_snprintf(p, left, "write(%d,%lu) - %s fd=%d\n",
|
|---|
| 53 | bio->num, (unsigned long)argi,
|
|---|
| 54 | bio->method->name, bio->num);
|
|---|
| 55 | else
|
|---|
| 56 | BIO_snprintf(p, left, "write(%d,%lu) - %s\n",
|
|---|
| 57 | bio->num, (unsigned long)argi, bio->method->name);
|
|---|
| 58 | break;
|
|---|
| 59 | case BIO_CB_PUTS:
|
|---|
| 60 | BIO_snprintf(p, left, "puts() - %s\n", bio->method->name);
|
|---|
| 61 | break;
|
|---|
| 62 | case BIO_CB_GETS:
|
|---|
| 63 | BIO_snprintf(p, left, "gets(%lu) - %s\n", (unsigned long)argi,
|
|---|
| 64 | bio->method->name);
|
|---|
| 65 | break;
|
|---|
| 66 | case BIO_CB_CTRL:
|
|---|
| 67 | BIO_snprintf(p, left, "ctrl(%lu) - %s\n", (unsigned long)argi,
|
|---|
| 68 | bio->method->name);
|
|---|
| 69 | break;
|
|---|
| 70 | case BIO_CB_RETURN | BIO_CB_READ:
|
|---|
| 71 | BIO_snprintf(p, left, "read return %ld\n", ret);
|
|---|
| 72 | break;
|
|---|
| 73 | case BIO_CB_RETURN | BIO_CB_WRITE:
|
|---|
| 74 | BIO_snprintf(p, left, "write return %ld\n", ret);
|
|---|
| 75 | break;
|
|---|
| 76 | case BIO_CB_RETURN | BIO_CB_GETS:
|
|---|
| 77 | BIO_snprintf(p, left, "gets return %ld\n", ret);
|
|---|
| 78 | break;
|
|---|
| 79 | case BIO_CB_RETURN | BIO_CB_PUTS:
|
|---|
| 80 | BIO_snprintf(p, left, "puts return %ld\n", ret);
|
|---|
| 81 | break;
|
|---|
| 82 | case BIO_CB_RETURN | BIO_CB_CTRL:
|
|---|
| 83 | BIO_snprintf(p, left, "ctrl return %ld\n", ret);
|
|---|
| 84 | break;
|
|---|
| 85 | default:
|
|---|
| 86 | BIO_snprintf(p, left, "bio callback - unknown type (%d)\n", cmd);
|
|---|
| 87 | break;
|
|---|
| 88 | }
|
|---|
| 89 |
|
|---|
| 90 | b = (BIO *)bio->cb_arg;
|
|---|
| 91 | if (b != NULL)
|
|---|
| 92 | BIO_write(b, buf, strlen(buf));
|
|---|
| 93 | #if !defined(OPENSSL_NO_STDIO)
|
|---|
| 94 | else
|
|---|
| 95 | fputs(buf, stderr);
|
|---|
| 96 | #endif
|
|---|
| 97 | return r;
|
|---|
| 98 | }
|
|---|
