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// SPDX-License-Identifier: GPL-2.0-or-later
/*
*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2012-2014 Intel Corporation. All rights reserved.
*
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#define _GNU_SOURCE
#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <getopt.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <sys/param.h>
#include <inttypes.h>
/*
* The "new" ASCII format uses 8-byte hexadecimal fields for all numbers and
* separates device numbers into separate fields for major and minor numbers.
*
* struct cpio_newc_header {
* char c_magic[6];
* char c_ino[8];
* char c_mode[8];
* char c_uid[8];
* char c_gid[8];
* char c_nlink[8];
* char c_mtime[8];
* char c_filesize[8];
* char c_devmajor[8];
* char c_devminor[8];
* char c_rdevmajor[8];
* char c_rdevminor[8];
* char c_namesize[8];
* char c_check[8];
* };
*
*/
#define HDR_FMT "%s%08X%08X%08X%08X%08X%08X%08jX%08X%08X%08X%08X%08X%08X%s"
#define HDR_MAGIC "070701"
static unsigned int ino_cnt = 721;
#define REG_EXE S_IFREG | 0555
static const struct {
const char *source;
const char *target;
mode_t mode;
} file_list[] = {
{ "tools/test-runner", "init", REG_EXE },
{ }
};
static void write_block(FILE *fp, const char *pathname, unsigned int ino,
mode_t mode, const char *name)
{
int i, pad, namelen = strlen(name);
struct stat st;
void *map;
int fd;
if (!pathname) {
fd = -1;
map = NULL;
st.st_size = 0;
goto done;
}
fd = open(pathname, O_RDONLY | O_CLOEXEC);
if (fd < 0) {
fd = -1;
map = NULL;
st.st_size = 0;
goto done;
}
if (fstat(fd, &st) < 0) {
close(fd);
fd = -1;
map = NULL;
st.st_size = 0;
goto done;
}
map = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
if (!map || map == MAP_FAILED) {
map = NULL;
st.st_size = 0;
}
close(fd);
fd = -1;
done:
fprintf(fp, HDR_FMT, HDR_MAGIC, ino, mode, 0, 0, 1, 0,
(uintmax_t) st.st_size, 0, 0, 0, 0, namelen + 1, 0, name);
pad = 4 - ((110 + namelen) % 4);
for (i = 0; i < pad; i++)
fputc(0, fp);
if (st.st_size > 0) {
fwrite(map, st.st_size, 1, fp);
pad = 3 - ((st.st_size + 3) % 4);
for (i = 0; i < pad; i++)
fputc(0, fp);
munmap(map, st.st_size);
}
}
static void usage(void)
{
printf("create-image - CPIO image creation utility\n"
"Usage:\n");
printf("\tcreate-image [options]\n");
printf("Options:\n"
"\t-o, --output <image> Output CPIO image\n"
"\t-h, --help Show help options\n");
}
static const struct option main_options[] = {
{ "output", required_argument, NULL, 'o' },
{ "version", no_argument, NULL, 'v' },
{ "help", no_argument, NULL, 'h' },
{ }
};
int main(int argc, char *argv[])
{
const char *output_pathname = NULL;
FILE *fp;
int i;
for (;;) {
int opt;
opt = getopt_long(argc, argv, "o:vh", main_options, NULL);
if (opt < 0)
break;
switch (opt) {
case 'o':
output_pathname = optarg;
break;
case 'v':
printf("%s\n", VERSION);
return EXIT_SUCCESS;
case 'h':
usage();
return EXIT_SUCCESS;
default:
return EXIT_FAILURE;
}
}
if (argc - optind > 0) {
fprintf(stderr, "Invalid command line parameters\n");
return EXIT_FAILURE;
}
if (!output_pathname) {
fprintf(stderr, "Failed to specify output file\n");
return EXIT_FAILURE;
}
fp = fopen(output_pathname, "we");
for (i = 0; file_list[i].source; i++)
write_block(fp, file_list[i].source, ino_cnt++,
file_list[i].mode, file_list[i].target);
write_block(fp, NULL, ino_cnt++, 0, "TRAILER!!!");
fclose(fp);
return EXIT_SUCCESS;
}
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