-/* crypto/err/err_prn.c */
-/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
+/*
+ * Copyright 1995-2019 The OpenSSL Project Authors. All Rights Reserved.
*
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to. The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code. The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * "This product includes cryptographic software written by
- * Eric Young (eay@cryptsoft.com)"
- * The word 'cryptographic' can be left out if the rouines from the library
- * being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- * the apps directory (application code) you must include an acknowledgement:
- * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed. i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
+ * 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
*/
+/* TODO: When ERR_STATE becomes opaque, this musts be removed */
+#define OSSL_FORCE_ERR_STATE
+
#include <stdio.h>
-#include "lhash.h"
-#include "crypto.h"
-#include "cryptlib.h"
-#include "buffer.h"
-#include "err.h"
-#include "crypto.h"
-
-#ifndef WIN16
-void ERR_print_errors_fp(fp)
-FILE *fp;
- {
- unsigned long l;
- char buf[200];
- char *file;
- int line;
- unsigned long es;
-
- es=CRYPTO_thread_id();
- while ((l=ERR_get_error_line(&file,&line)) != 0)
- fprintf(fp,"%lu:%s:%s:%d\n",es,ERR_error_string(l,buf),
- file,line);
- }
-#endif
+#include "internal/cryptlib.h"
+#include <openssl/crypto.h>
+#include <openssl/buffer.h>
+#include <openssl/err.h>
+#include "err_local.h"
+
+#define ERR_PRINT_BUF_SIZE 4096
+void ERR_print_errors_cb(int (*cb) (const char *str, size_t len, void *u),
+ void *u)
+{
+ CRYPTO_THREAD_ID tid = CRYPTO_THREAD_get_current_id();
+ unsigned long l;
+ char buf[ERR_PRINT_BUF_SIZE], *hex;
+ const char *lib, *reason;
+ const char *file, *data, *func;
+ int line, flags;
+
+ while ((l = ERR_get_error_all(&file, &line, &func, &data, &flags)) != 0) {
+ lib = ERR_lib_error_string(l);
+ reason = ERR_reason_error_string(l);
+ if (func == NULL)
+ func = "unknown function";
+ if ((flags & ERR_TXT_STRING) == 0)
+ data = "";
+ hex = OPENSSL_buf2hexstr((const unsigned char *)&tid, sizeof(tid));
+ BIO_snprintf(buf, sizeof(buf), "%s:error:%s:%s:%s:%s:%d:%s\n",
+ hex == NULL ? "<null>" : hex, lib, func, reason, file,
+ line, data);
+ OPENSSL_free(hex);
+ if (cb(buf, strlen(buf), u) <= 0)
+ break; /* abort outputting the error report */
+ }
+}
+
+/* auxiliary function for incrementally reporting texts via the error queue */
+static void put_error(int lib, const char *func, int reason,
+ const char *file, int line)
+{
+ ERR_new();
+ ERR_set_debug(file, line, func);
+ ERR_set_error(lib, reason, NULL /* no data here, so fmt is NULL */);
+}
+
+#define TYPICAL_MAX_OUTPUT_BEFORE_DATA 100
+#define MAX_DATA_LEN (ERR_PRINT_BUF_SIZE - TYPICAL_MAX_OUTPUT_BEFORE_DATA)
+void ERR_add_error_txt(const char *separator, const char *txt)
+{
+ const char *file = NULL;
+ int line;
+ const char *func = NULL;
+ const char *data = NULL;
+ int flags;
+ unsigned long err = ERR_peek_last_error();
+
+ if (separator == NULL)
+ separator = "";
+ if (err == 0)
+ put_error(ERR_LIB_NONE, NULL, 0, "", 0);
+
+ do {
+ size_t available_len, data_len;
+ const char *curr = txt, *next = txt;
+ const char *leading_separator = separator;
+ int trailing_separator = 0;
+ char *tmp;
+
+ ERR_peek_last_error_all(&file, &line, &func, &data, &flags);
+ if ((flags & ERR_TXT_STRING) == 0) {
+ data = "";
+ leading_separator = "";
+ }
+ data_len = strlen(data);
-void ERR_print_errors(bp)
-BIO *bp;
- {
- unsigned long l;
- char buf[256];
- char buf2[256];
- char *file;
- int line;
- unsigned long es;
-
- es=CRYPTO_thread_id();
- while ((l=ERR_get_error_line(&file,&line)) != 0)
- {
- sprintf(buf2,"%lu:%s:%s:%d\n",es,ERR_error_string(l,buf),
- file,line);
- BIO_write(bp,buf2,strlen(buf2));
- }
- }
+ /* workaround for limit of ERR_print_errors_cb() */
+ if (data_len >= MAX_DATA_LEN
+ || strlen(separator) >= (size_t)(MAX_DATA_LEN - data_len))
+ available_len = 0;
+ else
+ available_len = MAX_DATA_LEN - data_len - strlen(separator) - 1;
+ /* MAX_DATA_LEN > available_len >= 0 */
+ if (*separator == '\0') {
+ const size_t len_next = strlen(next);
+
+ if (len_next <= available_len) {
+ next += len_next;
+ curr = NULL; /* no need to split */
+ } else {
+ next += available_len;
+ curr = next; /* will split at this point */
+ }
+ } else {
+ while (*next != '\0' && (size_t)(next - txt) <= available_len) {
+ curr = next;
+ next = strstr(curr, separator);
+ if (next != NULL) {
+ next += strlen(separator);
+ trailing_separator = *next == '\0';
+ } else {
+ next = curr + strlen(curr);
+ }
+ }
+ if ((size_t)(next - txt) <= available_len)
+ curr = NULL; /* the above loop implies *next == '\0' */
+ }
+ if (curr != NULL) {
+ /* split error msg at curr since error data would get too long */
+ if (curr != txt) {
+ tmp = OPENSSL_strndup(txt, curr - txt);
+ if (tmp == NULL)
+ return;
+ ERR_add_error_data(2, separator, tmp);
+ OPENSSL_free(tmp);
+ }
+ put_error(ERR_GET_LIB(err), func, err, file, line);
+ txt = curr;
+ } else {
+ if (trailing_separator) {
+ tmp = OPENSSL_strndup(txt, next - strlen(separator) - txt);
+ if (tmp == NULL)
+ return;
+ /* output txt without the trailing separator */
+ ERR_add_error_data(2, leading_separator, tmp);
+ OPENSSL_free(tmp);
+ } else {
+ ERR_add_error_data(2, leading_separator, txt);
+ }
+ txt = next; /* finished */
+ }
+ } while (*txt != '\0');
+}
+
+void ERR_add_error_mem_bio(const char *separator, BIO *bio)
+{
+ if (bio != NULL) {
+ char *str;
+ long len = BIO_get_mem_data(bio, &str);
+
+ if (len > 0) {
+ if (str[len - 1] != '\0') {
+ if (BIO_write(bio, "", 1) <= 0)
+ return;
+
+ len = BIO_get_mem_data(bio, &str);
+ }
+ if (len > 1)
+ ERR_add_error_txt(separator, str);
+ }
+ }
+}
+
+static int print_bio(const char *str, size_t len, void *bp)
+{
+ return BIO_write((BIO *)bp, str, len);
+}
+
+void ERR_print_errors(BIO *bp)
+{
+ ERR_print_errors_cb(print_bio, bp);
+}
+
+#ifndef OPENSSL_NO_STDIO
+void ERR_print_errors_fp(FILE *fp)
+{
+ BIO *bio = BIO_new_fp(fp, BIO_NOCLOSE);
+ if (bio == NULL)
+ return;
+
+ ERR_print_errors_cb(print_bio, bio);
+ BIO_free(bio);
+}
+#endif
projects / openssl.git / blobdiff