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17197a2f61
The function OPENSSL_buf2hexstr() can return NULL if it fails to allocate memory so the callers should check its return value. Fixes #10525 Reported-by: Ziyang Li (@Liby99) Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com> (Merged from https://github.com/openssl/openssl/pull/10526)
68 lines
1.9 KiB
C
68 lines
1.9 KiB
C
/*
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* Copyright 1995-2019 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (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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/* TODO: When ERR_STATE becomes opaque, this musts be removed */
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#define OSSL_FORCE_ERR_STATE
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#include <stdio.h>
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#include "internal/cryptlib.h"
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#include <openssl/crypto.h>
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#include <openssl/buffer.h>
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#include <openssl/err.h>
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#include "err_local.h"
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void ERR_print_errors_cb(int (*cb) (const char *str, size_t len, void *u),
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void *u)
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{
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CRYPTO_THREAD_ID tid = CRYPTO_THREAD_get_current_id();
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unsigned long l;
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char buf[4096], *hex;
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const char *lib, *reason;
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const char *file, *data, *func;
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int line, flags;
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while ((l = ERR_get_error_all(&file, &line, &func, &data, &flags)) != 0) {
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lib = ERR_lib_error_string(l);
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reason = ERR_reason_error_string(l);
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if (func == NULL)
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func = "unknown function";
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if ((flags & ERR_TXT_STRING) == 0)
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data = "";
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hex = OPENSSL_buf2hexstr((const unsigned char *)&tid, sizeof(tid));
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BIO_snprintf(buf, sizeof(buf), "%s:error:%s:%s:%s:%s:%d:%s\n",
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hex == NULL ? "<null>" : hex, lib, func, reason, file,
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line, data);
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OPENSSL_free(hex);
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if (cb(buf, strlen(buf), u) <= 0)
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break; /* abort outputting the error report */
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}
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}
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static int print_bio(const char *str, size_t len, void *bp)
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{
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return BIO_write((BIO *)bp, str, len);
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}
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void ERR_print_errors(BIO *bp)
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{
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ERR_print_errors_cb(print_bio, bp);
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}
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#ifndef OPENSSL_NO_STDIO
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void ERR_print_errors_fp(FILE *fp)
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{
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BIO *bio = BIO_new_fp(fp, BIO_NOCLOSE);
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if (bio == NULL)
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return;
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ERR_print_errors_cb(print_bio, bio);
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BIO_free(bio);
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}
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#endif
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