1/*
2 * Copyright 1995-2019 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/* TODO: When ERR_STATE becomes opaque, this musts be removed */
11#define OSSL_FORCE_ERR_STATE
12
13#include <stdio.h>
14#include "internal/cryptlib.h"
15#include <openssl/crypto.h>
16#include <openssl/buffer.h>
17#include <openssl/err.h>
18#include "err_local.h"
19
20void ERR_print_errors_cb(int (*cb) (const char *str, size_t len, void *u),
21 void *u)
22{
23 CRYPTO_THREAD_ID tid = CRYPTO_THREAD_get_current_id();
24 unsigned long l;
25 char buf[4096], *hex;
26 const char *lib, *reason;
27 const char *file, *data, *func;
28 int line, flags;
29
30 while ((l = ERR_get_error_all(&file, &line, &func, &data, &flags)) != 0) {
31 lib = ERR_lib_error_string(l);
32 reason = ERR_reason_error_string(l);
33 if (func == NULL)
34 func = "unknown function";
35 if ((flags & ERR_TXT_STRING) == 0)
36 data = "";
37 hex = OPENSSL_buf2hexstr((const unsigned char *)&tid, sizeof(tid));
38 BIO_snprintf(buf, sizeof(buf), "%s:error:%s:%s:%s:%s:%d:%s\n",
39 hex == NULL ? "<null>" : hex, lib, func, reason, file,
40 line, data);
41 OPENSSL_free(hex);
42 if (cb(buf, strlen(buf), u) <= 0)
43 break; /* abort outputting the error report */
44 }
45}
46
47static int print_bio(const char *str, size_t len, void *bp)
48{
49 return BIO_write((BIO *)bp, str, len);
50}
51
52void ERR_print_errors(BIO *bp)
53{
54 ERR_print_errors_cb(print_bio, bp);
55}
56
57#ifndef OPENSSL_NO_STDIO
58void ERR_print_errors_fp(FILE *fp)
59{
60 BIO *bio = BIO_new_fp(fp, BIO_NOCLOSE);
61 if (bio == NULL)
62 return;
63
64 ERR_print_errors_cb(print_bio, bio);
65 BIO_free(bio);
66}
67#endif
68