obsolete-buildroot/sources/openwrt/tools/addpattern.c

   1 /*
   2  * Copyright (C) 2004  Manuel Novoa III  <mjn3@codepoet.org>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  17  */
  18
  19 /* July 29, 2004
  20  *
  21  * This is a hacked replacement for the 'addpattern' utility used to
  22  * create wrt54g .bin firmware files.  It isn't pretty, but it does
  23  * the job for me.
  24  *
  25  * Extensions:
  26  *  -v allows setting the version string on the command line.
  27  *  -{0|1} sets the (currently ignored) hw_ver flag in the header
  28  *      to 0 or 1 respectively.
  29  */
  30
  31 #include <stdio.h>
  32 #include <stdlib.h>
  33 #include <string.h>
  34 #include <time.h>
  35 #include <unistd.h>
  36 #include <sys/stat.h>
  37
  38 /**********************************************************************/
  39
  40 #define CODE_ID         "U2ND"          /* from code_pattern.h */
  41 #define CODE_PATTERN   "W54S"   /* from code_pattern.h */
  42
  43 #define CYBERTAN_VERSION        "v2.07.1" /* from cyutils.h */
  44 /* #define CYBERTAN_VERSION     "v2.04.3" */
  45
  46 struct code_header {                    /* from cyutils.h */
  47         char magic[4];
  48         char res1[4];                           /* for extra magic */
  49         char fwdate[3];
  50         char fwvern[3];
  51         char id[4];                                     /* U2ND */
  52 #if 0
  53         unsigned char res2[14];
  54 #else
  55         char hw_ver;                            /* 0: for 4702, 1: for 4712 -- new in 2.04.3 */
  56         unsigned char res2[13];
  57 #endif
  58 } ;
  59
  60 /**********************************************************************/
  61
  62 void usage(void) __attribute__ (( __noreturn__ ));
  63
  64 void usage(void)
  65 {
  66         fprintf(stderr, "Usage: addpattern [-i trxfile] [-o binfile] [-p pattern] [-g] [-v v#.#.#] [-{0|1}]\n");
  67         exit(EXIT_FAILURE);
  68 }
  69
  70 int main(int argc, char **argv)
  71 {
  72         char buf[1024]; /* keep this at 1k or adjust garbage calc below */
  73         struct code_header *hdr;
  74         FILE *in = stdin;
  75         FILE *out = stdout;
  76         char *ifn = NULL;
  77         char *ofn = NULL;
  78         char *pattern = CODE_PATTERN;
  79         char *version = CYBERTAN_VERSION;
  80         int gflag = 0;
  81         int c;
  82         int v0, v1, v2;
  83         size_t off, n;
  84         time_t t;
  85         struct tm *ptm;
  86
  87         fprintf(stderr, "mjn3's addpattern replacement - v0.81\n");
  88
  89         hdr = (struct code_header *) buf;
  90
  91         while ((c = getopt(argc, argv, "i:o:p:gv:01")) != -1) {
  92                 switch (c) {
  93                         case 'i':
  94                                 ifn = optarg;
  95                                 break;
  96                         case 'o':
  97                                 ofn = optarg;
  98                                 break;
  99                         case 'p':
 100                                 pattern = optarg;
 101                                 break;
 102                         case 'g':
 103                                 gflag = 1;
 104                                 break;
 105                         case 'v':                       /* extension to allow setting version */
 106                                 version = optarg;
 107                                 break;
 108                         case '0':
 109                                 hdr->hw_ver = 0;
 110                                 break;
 111                         case '1':
 112                                 hdr->hw_ver = 1;
 113                                 break;
 114                         default:
 115                                 usage();
 116                 }
 117         }
 118
 119         if (optind != argc) {
 120                 fprintf(stderr, "illegal arg \"%s\"\n", argv[optind]);
 121                 usage();
 122         }
 123
 124         if (strlen(pattern) != 4) {
 125                 fprintf(stderr, "illegal pattern \"%s\": length != 4\n", pattern);
 126                 usage();
 127         }
 128
 129         if (ifn && !(in = fopen(ifn, "r"))) {
 130                 fprintf(stderr, "can not open \"%s\" for reading\n", ifn);
 131                 usage();
 132         }
 133
 134         if (ofn && !(out = fopen(ofn, "w"))) {
 135                 fprintf(stderr, "can not open \"%s\" for writing\n", ofn);
 136                 usage();
 137         }
 138
 139         if (time(&t) == (time_t)(-1)) {
 140                 fprintf(stderr, "time call failed\n");
 141                 return EXIT_FAILURE;
 142         }
 143
 144         ptm = localtime(&t);
 145
 146         if (3 != sscanf(version, "v%d.%d.%d", &v0, &v1, &v2)) {
 147                 fprintf(stderr, "bad version string \"%s\"\n", version);
 148                 return EXIT_FAILURE;
 149         }
 150
 151         memset(hdr, 0, sizeof(struct code_header));
 152         memcpy(&hdr->magic, pattern, 4);
 153         hdr->fwdate[0] = ptm->tm_year % 100;
 154         hdr->fwdate[1] = ptm->tm_mon + 1;
 155         hdr->fwdate[2] = ptm->tm_mday;
 156         hdr->fwvern[0] = v0;
 157         hdr->fwvern[1] = v1;
 158         hdr->fwvern[2] = v2;
 159         memcpy(&hdr->id, CODE_ID, strlen(CODE_ID));
 160
 161         off = sizeof(struct code_header);
 162
 163         fprintf(stderr, "writing firmware v%d.%d.%d on %d/%d/%d (y/m/d)\n",
 164                         v0, v1, v2,
 165                         hdr->fwdate[0], hdr->fwdate[1], hdr->fwdate[2]);
 166
 167
 168         while ((n = fread(buf + off, 1, sizeof(buf)-off, in) + off) > 0) {
 169                 off = 0;
 170                 if (n < sizeof(buf)) {
 171                         if (ferror(in)) {
 172                         FREAD_ERROR:
 173                                 fprintf(stderr, "fread error\n");
 174                                 return EXIT_FAILURE;
 175                         }
 176                         if (gflag) {
 177                                 gflag = sizeof(buf) - n;
 178                                 memset(buf + n, 0xff, gflag);
 179                                 fprintf(stderr, "adding %d bytes of garbage\n", gflag);
 180                                 n = sizeof(buf);
 181                         }
 182                 }
 183                 if (!fwrite(buf, n, 1, out)) {
 184                 FWRITE_ERROR:
 185                         fprintf(stderr, "fwrite error\n");
 186                         return EXIT_FAILURE;
 187                 }
 188         }
 189
 190         if (ferror(in)) {
 191                 goto FREAD_ERROR;
 192         }
 193
 194         if (fflush(out)) {
 195                 goto FWRITE_ERROR;
 196         }
 197
 198         fclose(in);
 199         fclose(out);
 200
 201         return EXIT_SUCCESS;
 202 }