200 lines
3.6 KiB
C
200 lines
3.6 KiB
C
|
/*
|
||
|
* Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org>
|
||
|
*
|
||
|
* This program is free software; you can redistribute it and/or modify it
|
||
|
* under the terms of the GNU General Public License version 2 as published
|
||
|
* by the Free Software Foundation.
|
||
|
*
|
||
|
*/
|
||
|
|
||
|
#include <stdio.h>
|
||
|
#include <stdlib.h>
|
||
|
#include <stdint.h>
|
||
|
#include <string.h>
|
||
|
#include <unistd.h> /* for unlink() */
|
||
|
#include <libgen.h>
|
||
|
#include <getopt.h> /* for getopt() */
|
||
|
#include <stdarg.h>
|
||
|
#include <errno.h>
|
||
|
#include <sys/stat.h>
|
||
|
|
||
|
#define DNI_HDR_LEN 128
|
||
|
|
||
|
/*
|
||
|
* Globals
|
||
|
*/
|
||
|
static char *ifname;
|
||
|
static char *progname;
|
||
|
static char *ofname;
|
||
|
static char *version = "1.00.00";
|
||
|
static char *region ="NA";
|
||
|
|
||
|
static char *board_id;
|
||
|
/*
|
||
|
* Message macros
|
||
|
*/
|
||
|
#define ERR(fmt, ...) do { \
|
||
|
fflush(0); \
|
||
|
fprintf(stderr, "[%s] *** error: " fmt "\n", \
|
||
|
progname, ## __VA_ARGS__ ); \
|
||
|
} while (0)
|
||
|
|
||
|
#define ERRS(fmt, ...) do { \
|
||
|
int save = errno; \
|
||
|
fflush(0); \
|
||
|
fprintf(stderr, "[%s] *** error: " fmt "\n", \
|
||
|
progname, ## __VA_ARGS__, strerror(save)); \
|
||
|
} while (0)
|
||
|
|
||
|
void usage(int status)
|
||
|
{
|
||
|
FILE *stream = (status != EXIT_SUCCESS) ? stderr : stdout;
|
||
|
struct board_info *board;
|
||
|
|
||
|
fprintf(stream, "Usage: %s [OPTIONS...]\n", progname);
|
||
|
fprintf(stream,
|
||
|
"\n"
|
||
|
"Options:\n"
|
||
|
" -B <board> create image for the board specified with <board>\n"
|
||
|
" -i <file> read input from the file <file>\n"
|
||
|
" -o <file> write output to the file <file>\n"
|
||
|
" -v <version> set image version to <version>\n"
|
||
|
" -r <region> set image region to <region>\n"
|
||
|
" -h show this screen\n"
|
||
|
);
|
||
|
|
||
|
exit(status);
|
||
|
}
|
||
|
|
||
|
int main(int argc, char *argv[])
|
||
|
{
|
||
|
int res = EXIT_FAILURE;
|
||
|
int buflen;
|
||
|
int err;
|
||
|
struct stat st;
|
||
|
char *buf;
|
||
|
int i;
|
||
|
uint8_t csum;
|
||
|
|
||
|
FILE *outfile, *infile;
|
||
|
|
||
|
progname = basename(argv[0]);
|
||
|
|
||
|
while ( 1 ) {
|
||
|
int c;
|
||
|
|
||
|
c = getopt(argc, argv, "B:i:o:v:r:h");
|
||
|
if (c == -1)
|
||
|
break;
|
||
|
|
||
|
switch (c) {
|
||
|
case 'B':
|
||
|
board_id = optarg;
|
||
|
break;
|
||
|
case 'i':
|
||
|
ifname = optarg;
|
||
|
break;
|
||
|
case 'o':
|
||
|
ofname = optarg;
|
||
|
break;
|
||
|
case 'v':
|
||
|
version = optarg;
|
||
|
break;
|
||
|
case 'r':
|
||
|
region = optarg;
|
||
|
break;
|
||
|
case 'h':
|
||
|
usage(EXIT_SUCCESS);
|
||
|
break;
|
||
|
default:
|
||
|
usage(EXIT_FAILURE);
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (board_id == NULL) {
|
||
|
ERR("no board specified");
|
||
|
goto err;
|
||
|
}
|
||
|
|
||
|
if (ifname == NULL) {
|
||
|
ERR("no input file specified");
|
||
|
goto err;
|
||
|
}
|
||
|
|
||
|
if (ofname == NULL) {
|
||
|
ERR("no output file specified");
|
||
|
goto err;
|
||
|
}
|
||
|
|
||
|
err = stat(ifname, &st);
|
||
|
if (err){
|
||
|
ERRS("stat failed on %s", ifname);
|
||
|
goto err;
|
||
|
}
|
||
|
|
||
|
buflen = st.st_size + DNI_HDR_LEN + 1;
|
||
|
buf = malloc(buflen);
|
||
|
if (!buf) {
|
||
|
ERR("no memory for buffer\n");
|
||
|
goto err;
|
||
|
}
|
||
|
|
||
|
memset(buf, 0, DNI_HDR_LEN);
|
||
|
snprintf(buf, DNI_HDR_LEN, "device:%s\nversion:V%s\nregion:%s\n",
|
||
|
board_id, version, region);
|
||
|
|
||
|
infile = fopen(ifname, "r");
|
||
|
if (infile == NULL) {
|
||
|
ERRS("could not open \"%s\" for reading", ifname);
|
||
|
goto err_free;
|
||
|
}
|
||
|
|
||
|
errno = 0;
|
||
|
fread(buf + DNI_HDR_LEN, st.st_size, 1, infile);
|
||
|
if (errno != 0) {
|
||
|
ERRS("unable to read from file %s", ifname);
|
||
|
goto err_close_in;
|
||
|
}
|
||
|
|
||
|
csum = 0;
|
||
|
for (i = 0; i < (st.st_size + DNI_HDR_LEN); i++)
|
||
|
csum += buf[i];
|
||
|
|
||
|
csum = 0xff - csum;
|
||
|
buf[st.st_size + DNI_HDR_LEN] = csum;
|
||
|
|
||
|
outfile = fopen(ofname, "w");
|
||
|
if (outfile == NULL) {
|
||
|
ERRS("could not open \"%s\" for writing", ofname);
|
||
|
goto err_close_in;
|
||
|
}
|
||
|
|
||
|
errno = 0;
|
||
|
fwrite(buf, buflen, 1, outfile);
|
||
|
if (errno) {
|
||
|
ERRS("unable to write to file %s", ofname);
|
||
|
goto err_close_out;
|
||
|
}
|
||
|
|
||
|
res = EXIT_SUCCESS;
|
||
|
|
||
|
out_flush:
|
||
|
fflush(outfile);
|
||
|
|
||
|
err_close_out:
|
||
|
fclose(outfile);
|
||
|
if (res != EXIT_SUCCESS) {
|
||
|
unlink(ofname);
|
||
|
}
|
||
|
|
||
|
err_close_in:
|
||
|
fclose(infile);
|
||
|
|
||
|
err_free:
|
||
|
free(buf);
|
||
|
|
||
|
err:
|
||
|
return res;
|
||
|
}
|