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256 lines
6.4 KiB
C
256 lines
6.4 KiB
C
/*
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* Copyright (C) 2004 Manuel Novoa III <mjn3@codepoet.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/* July 29, 2004
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*
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* This is a hacked replacement for the 'addpattern' utility used to
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* create wrt54g .bin firmware files. It isn't pretty, but it does
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* the job for me.
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*
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* Extensions:
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* -v allows setting the version string on the command line.
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* -{0|1} sets the (currently ignored) hw_ver flag in the header
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* to 0 or 1 respectively.
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*/
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/* January 12, 2005
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*
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* Modified by rodent at rodent dot za dot net
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* Support added for the new WRT54G v2.2 and WRT54GS v1.1 "flags"
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* Without the flags set to 0x7, the above units will refuse to flash.
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*
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* Extensions:
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* -{0|1|2} sets {0|1} sets hw_ver flag to 0/1. {2} sets hw_ver to 1
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* and adds the new hardware "flags" for the v2.2/v1.1 units
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*/
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/* January 1, 2007
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*
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* Modified by juan.i.gonzalez at subdown dot net
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* Support added for the AG241v2 and similar
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*
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* Extensions:
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* -r #.# adds revision hardware flags. AG241v2 and similar.
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*
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* AG241V2 firmware sets the hw_ver to 0x44.
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*
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* Example: -r 2.0
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*
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* Convert 2.0 to 20 to be an integer, and add 0x30 to skip special ASCII
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* #define HW_Version ((HW_REV * 10) + 0x30) -> from cyutils.h
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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#include <sys/stat.h>
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/**********************************************************************/
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#define CODE_ID "U2ND" /* from code_pattern.h */
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#define CODE_PATTERN "W54S" /* from code_pattern.h */
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#define PBOT_PATTERN "PBOT"
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#define CYBERTAN_VERSION "v3.37.2" /* from cyutils.h */
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/* WRT54G v2.2 and WRT54GS v1.1 "flags" (from 3.37.32 firmware cyutils.h) */
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#define SUPPORT_4712_CHIP 0x0001
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#define SUPPORT_INTEL_FLASH 0x0002
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#define SUPPORT_5325E_SWITCH 0x0004
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struct code_header { /* from cyutils.h */
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char magic[4];
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char res1[4]; /* for extra magic */
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char fwdate[3];
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char fwvern[3];
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char id[4]; /* U2ND */
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char hw_ver; /* 0: for 4702, 1: for 4712 -- new in 2.04.3 */
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char unused;
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unsigned char flags[2]; /* SUPPORT_ flags new for 3.37.2 (WRT54G v2.2 and WRT54GS v1.1) */
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unsigned char res2[10];
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} ;
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/**********************************************************************/
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void usage(void) __attribute__ (( __noreturn__ ));
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void usage(void)
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{
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fprintf(stderr, "Usage: addpattern [-i trxfile] [-o binfile] [-p pattern] [-g] [-b] [-v v#.#.#] [-r #.#] [-{0|1|2|4}] -h\n");
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exit(EXIT_FAILURE);
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}
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int main(int argc, char **argv)
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{
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char buf[1024]; /* keep this at 1k or adjust garbage calc below */
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struct code_header *hdr;
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FILE *in = stdin;
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FILE *out = stdout;
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char *ifn = NULL;
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char *ofn = NULL;
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char *pattern = CODE_PATTERN;
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char *pbotpat = PBOT_PATTERN;
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char *version = CYBERTAN_VERSION;
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int gflag = 0;
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int pbotflag = 0;
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int c;
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int v0, v1, v2;
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size_t off, n;
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time_t t;
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struct tm *ptm;
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fprintf(stderr, "mjn3's addpattern replacement - v0.81\n");
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hdr = (struct code_header *) buf;
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memset(hdr, 0, sizeof(struct code_header));
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while ((c = getopt(argc, argv, "i:o:p:gbv:0124hr:")) != -1) {
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switch (c) {
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case 'i':
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ifn = optarg;
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break;
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case 'o':
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ofn = optarg;
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break;
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case 'p':
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pattern = optarg;
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break;
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case 'g':
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gflag = 1;
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break;
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case 'b':
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pbotflag = 1;
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break;
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case 'v': /* extension to allow setting version */
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version = optarg;
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break;
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case '0':
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hdr->hw_ver = 0;
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break;
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case '1':
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hdr->hw_ver = 1;
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break;
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case '2': /* new 54G v2.2 and 54GS v1.1 flags */
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hdr->hw_ver = 1;
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hdr->flags[0] |= SUPPORT_4712_CHIP;
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hdr->flags[0] |= SUPPORT_INTEL_FLASH;
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hdr->flags[0] |= SUPPORT_5325E_SWITCH;
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break;
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case '4':
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/* V4 firmware sets the flags to 0x1f */
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hdr->hw_ver = 0;
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hdr->flags[0] = 0x1f;
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break;
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case 'r':
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hdr->hw_ver = (char)(atof(optarg)*10)+0x30;
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break;
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case 'h':
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default:
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usage();
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}
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}
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if (optind != argc || optind == 1) {
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fprintf(stderr, "illegal arg \"%s\"\n", argv[optind]);
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usage();
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}
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if (strlen(pattern) != 4) {
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fprintf(stderr, "illegal pattern \"%s\": length != 4\n", pattern);
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usage();
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}
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if (ifn && !(in = fopen(ifn, "r"))) {
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fprintf(stderr, "can not open \"%s\" for reading\n", ifn);
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usage();
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}
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if (ofn && !(out = fopen(ofn, "w"))) {
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fprintf(stderr, "can not open \"%s\" for writing\n", ofn);
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usage();
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}
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if (time(&t) == (time_t)(-1)) {
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fprintf(stderr, "time call failed\n");
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return EXIT_FAILURE;
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}
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ptm = localtime(&t);
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if (3 != sscanf(version, "v%d.%d.%d", &v0, &v1, &v2)) {
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fprintf(stderr, "bad version string \"%s\"\n", version);
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return EXIT_FAILURE;
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}
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memcpy(&hdr->magic, pattern, 4);
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if (pbotflag)
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memcpy(&hdr->res1, pbotpat, 4);
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hdr->fwdate[0] = ptm->tm_year % 100;
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hdr->fwdate[1] = ptm->tm_mon + 1;
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hdr->fwdate[2] = ptm->tm_mday;
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hdr->fwvern[0] = v0;
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hdr->fwvern[1] = v1;
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hdr->fwvern[2] = v2;
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memcpy(&hdr->id, CODE_ID, strlen(CODE_ID));
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off = sizeof(struct code_header);
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fprintf(stderr, "writing firmware v%d.%d.%d on %d/%d/%d (y/m/d)\n",
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v0, v1, v2,
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hdr->fwdate[0], hdr->fwdate[1], hdr->fwdate[2]);
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while ((n = fread(buf + off, 1, sizeof(buf)-off, in) + off) > 0) {
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off = 0;
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if (n < sizeof(buf)) {
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if (ferror(in)) {
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FREAD_ERROR:
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fprintf(stderr, "fread error\n");
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return EXIT_FAILURE;
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}
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if (gflag) {
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gflag = sizeof(buf) - n;
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memset(buf + n, 0xff, gflag);
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fprintf(stderr, "adding %d bytes of garbage\n", gflag);
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n = sizeof(buf);
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}
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}
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if (!fwrite(buf, n, 1, out)) {
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FWRITE_ERROR:
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fprintf(stderr, "fwrite error\n");
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return EXIT_FAILURE;
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}
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}
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if (ferror(in)) {
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goto FREAD_ERROR;
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}
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if (fflush(out)) {
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goto FWRITE_ERROR;
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}
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fclose(in);
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fclose(out);
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return EXIT_SUCCESS;
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}
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