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/* crash_info.c
* Routines to try to provide more useful information in crash dumps.
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 2006 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "config.h"
#include "crash_info.h"
#ifdef __APPLE__
/*
* Copyright 2005-2012 Apple Inc. All rights reserved.
*
* IMPORTANT: This Apple software is supplied to you by Apple Computer,
* Inc. ("Apple") in consideration of your agreement to the following
* terms, and your use, installation, modification or redistribution of
* this Apple software constitutes acceptance of these terms. If you do
* not agree with these terms, please do not use, install, modify or
* redistribute this Apple software.
*
* In consideration of your agreement to abide by the following terms, and
* subject to these terms, Apple grants you a personal, non-exclusive
* license, under Apple's copyrights in this original Apple software (the
* "Apple Software"), to use, reproduce, modify and redistribute the Apple
* Software, with or without modifications, in source and/or binary forms;
* provided that if you redistribute the Apple Software in its entirety and
* without modifications, you must retain this notice and the following
* text and disclaimers in all such redistributions of the Apple Software.
* Neither the name, trademarks, service marks or logos of Apple Computer,
* Inc. may be used to endorse or promote products derived from the Apple
* Software without specific prior written permission from Apple. Except
* as expressly stated in this notice, no other rights or licenses, express
* or implied, are granted by Apple herein, including but not limited to
* any patent rights that may be infringed by your derivative works or by
* other works in which the Apple Software may be incorporated.
*
* The Apple Software is provided by Apple on an "AS IS" basis. APPLE
* MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
* THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
* OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
*
* IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION,
* MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED
* AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
* STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
/*
* This used to be the way to add an application-specific string to
* crash dumps; see
*
* http://www.allocinit.net/blog/2008/01/04/application-specific-information-in-leopard-crash-reports/
*
* It still appears to work as of OS X 10.8 (Mountain Lion).
*/
__private_extern__ char *__crashreporter_info__ = NULL;
#if 0
/*
* And this appears to be the new way to do it, as of Lion.
* However, if we do both, we get the message twice, so we're
* not doing this one, for now.
*
* This code was lifted from SVN trunk CUPS.
*/
#define _crc_make_getter(attr, type) (type)(gCRAnnotations.attr)
#define _crc_make_setter(attr, arg) (gCRAnnotations.attr = (uint64_t)(unsigned long)(arg))
#define CRASH_REPORTER_CLIENT_HIDDEN __attribute__((visibility("hidden")))
#define CRASHREPORTER_ANNOTATIONS_VERSION 4
#define CRASHREPORTER_ANNOTATIONS_SECTION "__crash_info"
/*
* Yes, these are all 64-bit, even on 32-bit platforms.
*
* version is presumably the version of this structure.
*
* message and message2 are reported, one after the other,
* under "Application Specific Information".
*
* signature_string is reported under "Application Specific
* Signatures".
*
* backtrace is reported under "Application Specific Backtrace".
*
* Dunno which versions are supported by which versions of macOS.
*/
struct crashreporter_annotations_t {
uint64_t version; /* unsigned long */
uint64_t message; /* char * */
uint64_t signature_string; /* char * */
uint64_t backtrace; /* char * */
uint64_t message2; /* char * */
uint64_t thread; /* uint64_t */
uint64_t dialog_mode; /* unsigned int */
};
CRASH_REPORTER_CLIENT_HIDDEN
struct crashreporter_annotations_t gCRAnnotations
__attribute__((section("__DATA," CRASHREPORTER_ANNOTATIONS_SECTION))) = {
CRASHREPORTER_ANNOTATIONS_VERSION, /* version */
0, /* message */
0, /* signature_string */
0, /* backtrace */
0, /* message2 */
0, /* thread */
0 /* dialog_mode */
};
#define CRSetCrashLogMessage(m) _crc_make_setter(message, m)
#endif /* 0 */
void
ws_vadd_crash_info(const char *fmt, va_list ap)
{
char *m, *old_info, *new_info;
m = ws_strdup_vprintf(fmt, ap);
if (__crashreporter_info__ == NULL)
__crashreporter_info__ = m;
else {
old_info = __crashreporter_info__;
new_info = ws_strdup_printf("%s\n%s", old_info, m);
g_free(m);
__crashreporter_info__ = new_info;
g_free(old_info);
}
}
#else /* __APPLE__ */
/*
* Perhaps Google Breakpad (http://code.google.com/p/google-breakpad/) or
* other options listed at
* http://stackoverflow.com/questions/7631908/library-for-logging-call-stack-at-runtime-windows-linux
* ?
*/
void
ws_vadd_crash_info(const char *fmt _U_, va_list ap _U_)
{
}
#endif /* __APPLE__ */
void
ws_add_crash_info(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
ws_vadd_crash_info(fmt, ap);
va_end(ap);
}
/*
* Editor modelines - https://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 8
* tab-width: 8
* indent-tabs-mode: t
* End:
*
* vi: set shiftwidth=8 tabstop=8 noexpandtab:
* :indentSize=8:tabSize=8:noTabs=false:
*/
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