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98 lines
3 KiB
C
98 lines
3 KiB
C
/*
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* Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include "bio_local.h"
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#include "internal/cryptlib.h"
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#include <openssl/err.h>
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long BIO_debug_callback(BIO *bio, int cmd, const char *argp,
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int argi, long argl, long ret)
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{
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BIO *b;
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char buf[256];
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char *p;
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long r = 1;
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int len, left;
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if (BIO_CB_RETURN & cmd)
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r = ret;
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len = BIO_snprintf(buf, sizeof(buf), "BIO[%p]: ", (void *)bio);
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/* Ignore errors and continue printing the other information. */
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if (len < 0)
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len = 0;
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p = buf + len;
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left = sizeof(buf) - len;
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switch (cmd) {
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case BIO_CB_FREE:
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BIO_snprintf(p, left, "Free - %s\n", bio->method->name);
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break;
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case BIO_CB_READ:
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if (bio->method->type & BIO_TYPE_DESCRIPTOR)
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BIO_snprintf(p, left, "read(%d,%lu) - %s fd=%d\n",
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bio->num, (unsigned long)argi,
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bio->method->name, bio->num);
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else
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BIO_snprintf(p, left, "read(%d,%lu) - %s\n",
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bio->num, (unsigned long)argi, bio->method->name);
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break;
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case BIO_CB_WRITE:
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if (bio->method->type & BIO_TYPE_DESCRIPTOR)
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BIO_snprintf(p, left, "write(%d,%lu) - %s fd=%d\n",
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bio->num, (unsigned long)argi,
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bio->method->name, bio->num);
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else
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BIO_snprintf(p, left, "write(%d,%lu) - %s\n",
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bio->num, (unsigned long)argi, bio->method->name);
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break;
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case BIO_CB_PUTS:
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BIO_snprintf(p, left, "puts() - %s\n", bio->method->name);
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break;
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case BIO_CB_GETS:
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BIO_snprintf(p, left, "gets(%lu) - %s\n", (unsigned long)argi,
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bio->method->name);
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break;
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case BIO_CB_CTRL:
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BIO_snprintf(p, left, "ctrl(%lu) - %s\n", (unsigned long)argi,
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bio->method->name);
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break;
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case BIO_CB_RETURN | BIO_CB_READ:
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BIO_snprintf(p, left, "read return %ld\n", ret);
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break;
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case BIO_CB_RETURN | BIO_CB_WRITE:
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BIO_snprintf(p, left, "write return %ld\n", ret);
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break;
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case BIO_CB_RETURN | BIO_CB_GETS:
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BIO_snprintf(p, left, "gets return %ld\n", ret);
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break;
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case BIO_CB_RETURN | BIO_CB_PUTS:
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BIO_snprintf(p, left, "puts return %ld\n", ret);
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break;
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case BIO_CB_RETURN | BIO_CB_CTRL:
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BIO_snprintf(p, left, "ctrl return %ld\n", ret);
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break;
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default:
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BIO_snprintf(p, left, "bio callback - unknown type (%d)\n", cmd);
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break;
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}
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b = (BIO *)bio->cb_arg;
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if (b != NULL)
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BIO_write(b, buf, strlen(buf));
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#if !defined(OPENSSL_NO_STDIO)
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else
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fputs(buf, stderr);
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#endif
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return r;
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}
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