2 * Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
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
11 #include <openssl/err.h>
24 err_clear(es, es->top, 0);
27 void ERR_set_debug(const char *file, int line, const char *func)
35 err_set_debug(es, es->top, file, line, func);
38 void ERR_set_error(int lib, int reason, const char *fmt, ...)
43 ERR_vset_error(lib, reason, fmt, args);
47 void ERR_vset_error(int lib, int reason, const char *fmt, va_list args)
52 unsigned long flags = 0;
64 buf = es->err_data[i];
65 buf_size = es->err_data_size[i];
68 * To protect the string we just grabbed from tampering by other
69 * functions we may call, or to protect them from freeing a pointer
70 * that may no longer be valid at that point, we clear away the
71 * data pointer and the flags. We will set them again at the end
74 es->err_data[i] = NULL;
75 es->err_data_flags[i] = 0;
78 * Try to maximize the space available. If that fails, we use what
81 if (buf_size < ERR_MAX_DATA_SIZE
82 && (rbuf = OPENSSL_realloc(buf, ERR_MAX_DATA_SIZE)) != NULL) {
84 buf_size = ERR_MAX_DATA_SIZE;
88 printed_len = BIO_vsnprintf(buf, ERR_MAX_DATA_SIZE, fmt, args);
92 buf[printed_len] = '\0';
95 * Try to reduce the size, but only if we maximized above. If that
96 * fails, we keep what we have.
97 * (According to documentation, realloc leaves the old buffer untouched
100 if ((rbuf = OPENSSL_realloc(buf, printed_len + 1)) != NULL) {
102 buf_size = printed_len + 1;
106 flags = ERR_TXT_MALLOCED | ERR_TXT_STRING;
109 err_clear_data(es, es->top, 0);
110 err_set_error(es, es->top, lib, reason);
112 err_set_data(es, es->top, buf, buf_size, flags);