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/*
* PSX-Tools Bundle Pack
* Copyright (C) 2002 Nicolas "Pixel" Noble
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <stdlib.h>
#ifdef __linux__
#include <values.h>
#else
#define MAXINT INT_MAX
#define MININT INT_MIN
#endif
#include <string.h>
#include "generic.h"
#include "Input.h"
#include "Main.h"
CODE_BEGINS
int startup(void) throw (GeneralException) {
int size, mind, maxd, delta, len, i, j;
char * buffer, * str;
Handle * h;
if (argc != 3) {
printm(M_BARE, "Usage: %s <inputfile> <needle>\n", argv[0]);
exit(-1);
}
verbosity = M_INFO;
h = new Input(argv[1]);
str = argv[2];
size = h->GetSize();
printm(M_STATUS, "Requesting memory (%i bytes)\n", size);
if (!(buffer = (char *) malloc(size))) {
printm(M_ERROR, "Not enough memory.\n");
delete h;
exit(-1);
}
printm(M_STATUS, "Loading file...\n");
h->read(buffer, size);
printm(M_STATUS, "Done, initialising the search.\n");
len = strlen(argv[2]);
mind = MININT;
maxd = MAXINT;
for (i = 0; i < len; i++) {
mind = (mind < (-str[i])) ? -str[i] : mind;
maxd = (maxd > (255 - str[i])) ? 255 - str[i] : maxd;
}
printm(M_STATUS, "Min Delta = %i, Max Delta = %i\n", mind, maxd);
printm(M_STATUS, "Beginning searching...\n");
for (i = 0; i < (size - len); i++) {
delta = buffer[i] - str[0];
if ((delta >= mind) && (delta <= maxd)) {
int good = 1;
for (j = 1; j < len; j++) {
if (((delta + str[j]) != buffer[i + j]) && (str[j] != '.')) {
good = 0;
break;
}
}
if (good) {
printm(M_STATUS, "Found a needle at %i = 0x%08x with delta %i:", i, i, delta);
for (j = 0; j < len; j++) {
printm(M_BARE, "%c", buffer[j + i]);
}
printm(M_BARE, "\n");
}
}
}
delete h;
return 0;
}
CODE_ENDS
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