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/*
* Copyright (c) 2021, David Isaksson <davidisaksson93@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibCore/ArgsParser.h>
#include <fcntl.h>
#include <stdio.h>
#include <sys/ioctl.h>
#include <unistd.h>
static void fetch_ioctl(int fd, int request)
{
size_t value;
if (ioctl(fd, request, &value) < 0) {
perror("ioctl");
exit(1);
}
outln("{}", value);
}
int main(int argc, char** argv)
{
if (unveil("/dev", "r") < 0) {
perror("unveil");
return 1;
}
if (unveil(nullptr, nullptr) < 0) {
perror("unveil");
return 1;
}
if (pledge("stdio rpath", nullptr) < 0) {
perror("pledge");
return 1;
}
const char* device = nullptr;
bool flag_get_disk_size = false;
bool flag_get_block_size = false;
Core::ArgsParser args_parser;
args_parser.set_general_help("Call block device ioctls");
args_parser.add_option(flag_get_disk_size, "Get size in bytes", "size", 's');
args_parser.add_option(flag_get_block_size, "Get block size in bytes", "block-size", 'b');
args_parser.add_positional_argument(device, "Device to query", "device");
args_parser.parse(argc, argv);
int fd = open(device, O_RDONLY);
if (fd < 0) {
perror("open");
return 1;
}
if (flag_get_disk_size) {
fetch_ioctl(fd, STORAGE_DEVICE_GET_SIZE);
}
if (flag_get_block_size) {
fetch_ioctl(fd, STORAGE_DEVICE_GET_BLOCK_SIZE);
}
return 0;
}
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