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/*
* Copyright (c) 2023-2025 Ian Marco Moffett and the Osmora Team.
* All rights reserved.
*
* 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 above 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. Neither the name of Hyra nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT OWNER 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.
*/
#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdint.h>
#include "crc32.h"
#include "frame.h"
#include "core.h"
static void
parse_core(const struct core *dump)
{
uint32_t checksum;
printf("-- CORE DUMP OF PID %d CRASH -- \n", dump->pid);
printf("Faulting address: %p\n", dump->fault_addr);
core_dumpframe(dump);
checksum = crc32(dump, sizeof(*dump) - sizeof(checksum));
if (checksum != dump->checksum) {
printf("!! WARNING: coredump might be corrupt !!\n");
}
}
int
main(int argc, char **argv)
{
int fd;
struct core core;
if (argc < 2) {
printf("usage: readcore <coredump>\n");
return -1;
}
fd = open(argv[1], O_RDONLY);
if (fd < 2) {
printf("readcore: Could not open \"%s\"", argv[1]);
return fd;
}
if (read(fd, &core, sizeof(core)) < sizeof(core)) {
printf("readcore: bad read()\n");
return -1;
}
parse_core(&core);
return 0;
}
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