radio_s_off: p7_s-off.c

/*
    Copyright (C) 2010  Guhl

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <stdio.h>
#include <stdlib.h>

#define INFILE "/dev/block/mmcblk0p7"
#define CPYFILE "/sdcard/mmcblk0p7.ori.img"
#define OUTFILE "/dev/block/mmcblk0p7"

int main(void) {
        FILE *fdin, *fdout;
        char ch;

        fdin = fopen(INFILE, "rb");
        if (fdin == NULL){
                printf("Error opening input file.\n");
                return -1;
        }

        fdout = fopen(CPYFILE, "wb");
        if (fdout == NULL){
                printf("Error opening copy file.\n");
                return -1;
        }

//  create a copy of the partition
        while(!feof(fdin)) {
            ch = fgetc(fdin);
            if(ferror(fdin)) {
              printf("Error reading input file.\n");
              exit(1);
            }
            if(!feof(fdin)) fputc(ch, fdout);
            if(ferror(fdout)) {
              printf("Error writing copy file.\n");
              exit(1);
            }
        }
        if(fclose(fdin)==EOF) {
                printf("Error closing input file.\n");
                exit(1);
        }

        if(fclose(fdout)==EOF) {
                printf("Error closing copy file.\n");
                exit(1);
        }

//  copy back and patch
        long i;

        fdin = fopen(CPYFILE, "rb");
        if (fdin == NULL){
                printf("Error opening copy file.\n");
                return -1;
        }

        fdout = fopen(OUTFILE, "wb");
        if (fdout == NULL){
                printf("Error opening output file.\n");
                return -1;
        }

        i = 0;

        while(!feof(fdin)) {
            ch = fgetc(fdin);
            if(ferror(fdin)) {
              printf("Error reading copy file.\n");
              exit(1);
            }
            if (i==0xa00 || (i>0x80003 && i<0x807fc) || (i>=0x80800 && i<=0x82fff)){
                ch = 0x00;
            } else if ((i>=0x200 && i<=0x207)) {
                ch = 0x31;
            } else if (i==0x80000) {
                ch = 0x78;
            } else if (i==0x80001) {
                ch = 0x56;
            } else if (i==0x80002) {
                ch = 0xF3;
            } else if (i==0x80003) {
                ch = 0xC9;
            } else if (i==0x807fc) {
                ch = 0x49;
            } else if (i==0x807fd) {
                ch = 0x53;
            } else if (i==0x807fe) {
                ch = 0xF4;
            } else if (i==0x807ff) {
                ch = 0x7D;
            }
                if(!feof(fdin)) fputc(ch, fdout);
                if(ferror(fdout)) {
                  printf("Error writing output file.\n");
                  exit(1);
                }
                i++;
        }
        if(fclose(fdin)==EOF) {
                printf("Error closing copy file.\n");
                exit(1);
        }

        if(fclose(fdout)==EOF) {
                printf("Error closing output file.\n");
                exit(1);
        }

        return 0;
}