mirror of
https://github.com/openssl/openssl.git
synced 2024-12-21 06:09:35 +08:00
3b90a847ec
Reviewed-by: Tim Hudson <tjh@openssl.org> (Merged from https://github.com/openssl/openssl/pull/15539)
118 lines
3.0 KiB
C
118 lines
3.0 KiB
C
/*
|
|
* Copyright 2019-2021 The OpenSSL Project Authors. All Rights Reserved.
|
|
*
|
|
* Licensed under the Apache License 2.0 (the "License"). You may not use
|
|
* this file except in compliance with the License. You can obtain a copy
|
|
* in the file LICENSE in the source distribution or at
|
|
* https://www.openssl.org/source/license.html
|
|
*/
|
|
|
|
#define OSSL_FORCE_ERR_STATE
|
|
|
|
#include <string.h>
|
|
#include <openssl/err.h>
|
|
#include "err_local.h"
|
|
|
|
void ERR_new(void)
|
|
{
|
|
ERR_STATE *es;
|
|
|
|
es = ossl_err_get_state_int();
|
|
if (es == NULL)
|
|
return;
|
|
|
|
/* Allocate a slot */
|
|
err_get_slot(es);
|
|
err_clear(es, es->top, 0);
|
|
}
|
|
|
|
void ERR_set_debug(const char *file, int line, const char *func)
|
|
{
|
|
ERR_STATE *es;
|
|
|
|
es = ossl_err_get_state_int();
|
|
if (es == NULL)
|
|
return;
|
|
|
|
err_set_debug(es, es->top, file, line, func);
|
|
}
|
|
|
|
void ERR_set_error(int lib, int reason, const char *fmt, ...)
|
|
{
|
|
va_list args;
|
|
|
|
va_start(args, fmt);
|
|
ERR_vset_error(lib, reason, fmt, args);
|
|
va_end(args);
|
|
}
|
|
|
|
void ERR_vset_error(int lib, int reason, const char *fmt, va_list args)
|
|
{
|
|
ERR_STATE *es;
|
|
char *buf = NULL;
|
|
size_t buf_size = 0;
|
|
unsigned long flags = 0;
|
|
size_t i;
|
|
|
|
es = ossl_err_get_state_int();
|
|
if (es == NULL)
|
|
return;
|
|
i = es->top;
|
|
|
|
if (fmt != NULL) {
|
|
int printed_len = 0;
|
|
char *rbuf = NULL;
|
|
|
|
buf = es->err_data[i];
|
|
buf_size = es->err_data_size[i];
|
|
|
|
/*
|
|
* To protect the string we just grabbed from tampering by other
|
|
* functions we may call, or to protect them from freeing a pointer
|
|
* that may no longer be valid at that point, we clear away the
|
|
* data pointer and the flags. We will set them again at the end
|
|
* of this function.
|
|
*/
|
|
es->err_data[i] = NULL;
|
|
es->err_data_flags[i] = 0;
|
|
|
|
/*
|
|
* Try to maximize the space available. If that fails, we use what
|
|
* we have.
|
|
*/
|
|
if (buf_size < ERR_MAX_DATA_SIZE
|
|
&& (rbuf = OPENSSL_realloc(buf, ERR_MAX_DATA_SIZE)) != NULL) {
|
|
buf = rbuf;
|
|
buf_size = ERR_MAX_DATA_SIZE;
|
|
}
|
|
|
|
if (buf != NULL) {
|
|
printed_len = BIO_vsnprintf(buf, buf_size, fmt, args);
|
|
}
|
|
if (printed_len < 0)
|
|
printed_len = 0;
|
|
if (buf != NULL)
|
|
buf[printed_len] = '\0';
|
|
|
|
/*
|
|
* Try to reduce the size, but only if we maximized above. If that
|
|
* fails, we keep what we have.
|
|
* (According to documentation, realloc leaves the old buffer untouched
|
|
* if it fails)
|
|
*/
|
|
if ((rbuf = OPENSSL_realloc(buf, printed_len + 1)) != NULL) {
|
|
buf = rbuf;
|
|
buf_size = printed_len + 1;
|
|
buf[printed_len] = '\0';
|
|
}
|
|
|
|
if (buf != NULL)
|
|
flags = ERR_TXT_MALLOCED | ERR_TXT_STRING;
|
|
}
|
|
|
|
err_clear_data(es, es->top, 0);
|
|
err_set_error(es, es->top, lib, reason);
|
|
if (fmt != NULL)
|
|
err_set_data(es, es->top, buf, buf_size, flags);
|
|
}
|