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// SPDX-License-Identifier: GPL-2.0-or-later
// SPDX-FileCopyrightText: 2014 Sascha Hauer, Pengutronix
#include <stdio.h>
#include <sys/types.h>
#include <stdint.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/mman.h>
#include <string.h>
#include <errno.h>
#include <stdarg.h>
#include <linux/err.h>
#include <linux/kernel.h>
#include "common.h"
#include "common.c"
#include "../include/image-metadata.h"
#define eprintf(args...) fprintf(stderr, ## args)
static void debug(const char *fmt, ...)
{
va_list ap;
if (!imd_command_verbose)
return;
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
}
int imd_command_setenv(const char *variable_name, const char *value)
{
fprintf(stderr, "-s option ignored\n");
return -EINVAL;
}
static inline void read_file_2_free(void *buf)
{
/*
* Can't free() here because buffer might be mmapped. No need
* to do anything as we are exitting in a moment anyway.
*/
}
static unsigned long simple_strtoul(const char *cp, char **endp, unsigned int base)
{
return strtoul(cp, endp, base);
}
static int imd_read_file(const char *filename, size_t *size, void **outbuf,
bool allow_mmap)
{
void *buf = MAP_FAILED;
int fd, ret;
size_t fsize;
fd = open(filename, O_RDONLY);
if (fd < 0) {
fprintf(stderr, "Cannot open %s: %s\n", filename, strerror(errno));
return -errno;
}
fsize = lseek(fd, 0, SEEK_END);
if (fsize == -1) {
fprintf(stderr, "Cannot get size %s: %s\n", filename, strerror(errno));
ret = -errno;
goto close;
}
if (allow_mmap)
buf = mmap(NULL, fsize, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
if (buf == MAP_FAILED) {
close(fd);
return read_file_2(filename, size, outbuf, 0x100000);
}
*outbuf = buf;
*size = fsize;
return 0;
close:
close(fd);
return ret;
}
#include "../include/xfuncs.h"
#include "../crypto/crc32.c"
#include "../common/imd.c"
static void usage(const char *prgname)
{
printf(
"Extract metadata from a barebox image\n"
"\n"
"Usage: %s [OPTIONS] FILE\n"
"Options:\n"
"-t <type> only show information of <type>\n"
"-n <no> for tags with multiple strings only show string <no>\n"
"-v Be verbose\n"
"-V Verify checksum of FILE\n"
"-c Create checksum for FILE and write it to the crc32 tag\n"
"\n"
"Without options all information available is printed. Valid types are:\n"
"release, build, model, of_compatible\n",
prgname);
}
int main(int argc, char *argv[])
{
int ret;
ret = imd_command(argc, argv);
if (ret == -ENOSYS) {
usage(argv[0]);
exit(1);
}
if (ret)
fprintf(stderr, "%s\n", strerror(-ret));
return ret ? 1 : 0;
}
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